WO2023093749A1 - 摆头机构及医用吻合器 - Google Patents

摆头机构及医用吻合器 Download PDF

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Publication number
WO2023093749A1
WO2023093749A1 PCT/CN2022/133654 CN2022133654W WO2023093749A1 WO 2023093749 A1 WO2023093749 A1 WO 2023093749A1 CN 2022133654 W CN2022133654 W CN 2022133654W WO 2023093749 A1 WO2023093749 A1 WO 2023093749A1
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WO
WIPO (PCT)
Prior art keywords
swing
head
driven wheel
driven
driving wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/133654
Other languages
English (en)
French (fr)
Inventor
丁水澄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Touchstone International Medical Science Co Ltd
Original Assignee
Touchstone International Medical Science Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202122888036.6U external-priority patent/CN216854749U/zh
Priority claimed from CN202122886676.3U external-priority patent/CN216854747U/zh
Priority claimed from CN202122886951.1U external-priority patent/CN216854748U/zh
Priority claimed from CN202111396060.6A external-priority patent/CN116138826B/zh
Priority claimed from CN202111394409.2A external-priority patent/CN116138825B/zh
Priority claimed from CN202111396072.9A external-priority patent/CN116138827B/zh
Priority to JP2024531101A priority Critical patent/JP7652993B2/ja
Priority to AU2022395851A priority patent/AU2022395851B2/en
Priority to KR1020247018522A priority patent/KR20240107145A/ko
Priority to EP22897832.6A priority patent/EP4437977A4/en
Application filed by Touchstone International Medical Science Co Ltd filed Critical Touchstone International Medical Science Co Ltd
Priority to CA3238935A priority patent/CA3238935A1/en
Publication of WO2023093749A1 publication Critical patent/WO2023093749A1/zh
Priority to US18/669,854 priority patent/US12336706B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/00234Surgical instruments, devices or methods for minimally invasive surgery
    • A61B2017/00292Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003Steerable
    • A61B2017/00318Steering mechanisms
    • A61B2017/00323Cables or rods
    • A61B2017/00327Cables or rods with actuating members moving in opposite directions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B2017/00367Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B2017/00831Material properties
    • A61B2017/00862Material properties elastic or resilient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214Stapler heads
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B2017/2926Details of heads or jaws
    • A61B2017/2927Details of heads or jaws the angular position of the head being adjustable with respect to the shaft

Definitions

  • the invention relates to the technical field of medical instruments, in particular to a head swing mechanism and a medical stapler.
  • a medical stapler includes a stapler body, a firing handle movably connected to the stapler body, and a nail head matched with the body.
  • the stapler body includes a firing assembly.
  • the nail head includes a nail cartridge assembly and a nail anvil which are oppositely arranged.
  • a swinging head mechanism can be set between the stapler body and the nail head, the swinging head mechanism includes a swinging head pull tab, the far end of the swing head pull tab is connected to the nail head, when the swing head pull tab is driven along the anastomosis When the stapler moves axially, the distal side of the swing head puller drives the nail head to swing clockwise or counterclockwise relative to the stapler body.
  • the structure of the existing swing head mechanism is generally complicated, and it is difficult to set the swing angle.
  • the nail head may also swing uncontrollably, resulting in an uncontrollable swing angle of the nail head, resulting in The nail head cannot be positioned accurately, which affects the surgical effect.
  • the object of the present invention is to provide a head swing mechanism and a medical stapler, which can simply and conveniently realize the swing of the staple head of the stapler relative to the stapler body, and can adjust the staple through gear cooperation.
  • the swing angle of the head is to provide a head swing mechanism and a medical stapler, which can simply and conveniently realize the swing of the staple head of the stapler relative to the stapler body, and can adjust the staple through gear cooperation.
  • An embodiment of the present invention provides a head swing mechanism for a medical stapler.
  • the head swing mechanism includes:
  • the gear set includes a driving wheel and a driven wheel, the driving wheel includes a driving wheel tooth portion, the driven wheel includes a driven wheel tooth portion and a first matching portion, and the driven wheel tooth portion meshes with the driving wheel tooth portion ;
  • the swing head rod includes a second fitting part and a pull tab fit part, the second fit part cooperates with the first fit part, so that when the driven wheel rotates, the pull tab of the swing head pull rod is driven to cooperate part along the axial movement of the stapler;
  • the swing pull tab extends along the axial direction of the stapler and is connected to the pull tab matching portion of the swing pull rod.
  • it also includes a housing for accommodating the gear set, one of the first inner surface of the housing and the driving wheel is provided with a support portion, and the other is provided with a slide groove, and the support portion The support part is located in the sliding slot, and the supporting part can rotate relative to the sliding slot.
  • the first matching portion is located on a side of the driven gear tooth portion facing the first inner surface of the housing.
  • the support portion is ring-shaped or arc-shaped
  • the chute is ring-shaped or arc-shaped
  • the chute is coaxially arranged with the tooth portion of the drive gear.
  • the driven wheel also includes a housing for accommodating the gear set, the driven wheel further includes a third matching portion, the inner surface of the housing is provided with a fourth matching portion, and the third matching portion is compatible with the Cooperate with the fourth matching portion, so that the driven wheel can rotate relative to the housing.
  • one of the third matching portion and the fourth matching portion includes a driven wheel rotation shaft, and the other includes a fixing hole, and the driven wheel rotation shaft is at least partially rotatably located in the fixing hole. middle.
  • the first matching portion is an eccentric wheel portion
  • a fifth matching portion is opened in the second matching portion
  • the eccentric wheel portion at least partially enters the fifth matching portion
  • the outer contour of the eccentric part is circular or arc-shaped
  • the fifth fitting part is waist-shaped
  • the two straight sides of the waist-shape extend along the transverse direction of the stapler.
  • it includes two driven wheels, two swing-head pull rods and two swing-head pull pieces, and the two swing-head pull rods are arranged symmetrically with respect to the axial direction of the stapler, Each of the oscillating pull rods is respectively connected to one of the oscillating pull pieces, and when the driving wheel rotates, the two oscillating pull rods move in opposite directions.
  • the central axes of the eccentric wheel portions of the two driven wheels are respectively located outside the corresponding rotational axes of the driven wheel, or, in the initial state, the eccentric wheels of the two driven wheels
  • the central axes of the parts are respectively located inside the corresponding driven wheel rotation axes.
  • the handle fitting part is a protrusion or a groove provided on the inner side of the second matching part, and the proximal side of the swing head pull tab is provided with a holes or protrusions that fit into the grooves.
  • the protrusion or the groove is arranged at the central position of the swing head rod along the axial direction.
  • the inner surface of the second matching portion is a plane parallel to the axial direction of the stapler.
  • the driven wheel is located proximal to the driving wheel.
  • the rotational axes of the driven wheels of the two driven wheels are parallel to the central axis of the driving wheel, and the distances from the rotational axes of the driven wheels of the two driven wheels to the central axis of the driving wheel are equal .
  • the first inner surface of the housing is provided with an axially extending guide groove of the stapler, and the swing head pull rod further includes a guide part, the guide part is located in the guide groove, And limited by the guide groove, it can only move in the axial direction.
  • the oscillating head rod includes two guiding parts, and in the transverse direction of the stapler, the two guiding parts are respectively connected to the distal end surface and the proximal end of the second matching part the middle of the face.
  • the driving wheel further includes an operating part, the second side surface of the housing is provided with a receiving hole, and the operating part passes through the receiving hole and is exposed outside the housing .
  • the housing includes a first inner surface and a second inner surface, and an accommodating cavity is formed between the first inner surface and the second inner surface;
  • the fixing part is fixedly arranged in the accommodating cavity, and includes a third surface facing the first inner surface and a fourth surface facing the second inner surface, and the gear set is at least partly arranged on the first inner surface between the four surfaces and the second inner surface of the casing, and the gear set can rotate relative to the fixing member.
  • the fixing part is provided with a first fixing part on the side facing the driving wheel
  • the driving wheel is provided with a second fixing part on the side facing the fixing part
  • the first fixing part An embedded connection is formed with the second fixed part, and the driving wheel can rotate relative to the first fixed part.
  • the driving wheel further includes an operating portion and a driving wheel tooth portion, the operating portion is disposed on a side of the driving wheel tooth portion facing the second inner surface of the housing, and the first The fixing part is arranged on the side of the driving gear tooth part facing the first inner surface of the housing;
  • the driven wheel further includes a toothed portion of the driven wheel, the toothed portion of the driven wheel meshes with the toothed portion of the driving wheel, and the first matching portion is located on a side of the toothed portion of the driven wheel facing the first inner surface ;
  • the driving gear teeth and the driven gear teeth are located between the fourth surface and the second inner surface of the housing.
  • the swing head rod is located between the third surface of the fixing part and the first inner surface of the housing, the fixing part is provided with a through hole, and the first matching part of the driven wheel After the part passes through the through hole, it cooperates with the second matching part of the swing head rod.
  • first fixing part and the second fixing part are coaxial and fitted first fixing columns and grooves respectively, or the first fixing part and the second fixing part They are the coaxial and fitted groove and the first fixing column respectively.
  • the fixing member includes a driving wheel support portion, and the driving wheel support portion at least partially forms an embedded connection with at least a portion of the first inner surface of the housing; and/or,
  • the fixing member includes a driven wheel support portion, and at least part of the driven wheel support portion forms an embedded connection with at least part of the first inner surface of the housing.
  • a relief groove is provided on the side of the fixing member facing the first inner surface of the housing, and a casing stopper is provided at a position opposite to the relief groove, The relief groove and the casing limiting portion form a first channel along the axial direction.
  • the gear set includes two driven wheels
  • the fixing member includes two driven wheel supporting parts respectively carrying the driven wheels
  • a gap is formed between the two driven wheel supporting parts.
  • a second channel extending axially.
  • it also includes a housing for accommodating the gear set, the housing includes a first inner surface and a second inner surface, the second inner surface is provided with at least one stopper, and the stopper The component restricts the axial movement of the driven wheel supporting part.
  • it also includes a locking part, and the locking part includes a locking part; wherein, when the gear set is not subjected to external force, the locking part meshes with the gear set to block the The rotation of the driving wheel and/or the driven wheel, when the gear set is driven by an external force to rotate, the locking part moves away from the gear set under the action of the gear set without blocking all rotation of the gear set.
  • the locking member is at least partially elastic.
  • the driving gear tooth portion includes a plurality of driving gear teeth
  • the locking portion includes two inclined guide surfaces or the locking portion includes an arc surface, and the locking portion and the locking portion When the teeth of the driving gears are engaged, the guiding surface or arc surface of the locking part at least partially enters between two adjacent driving gear teeth;
  • the driven gear tooth portion includes a plurality of driven gear teeth
  • the locking portion includes two inclined guide surfaces or the locking portion includes an arc surface
  • the locking portion and the driven gear tooth portion When meshing, the guide surface or arc surface of the locking part at least partially enters between two adjacent driven gear teeth, and the two guide surfaces are respectively opposite to the side surfaces of the adjacent two driven gear teeth .
  • the locking member is rod-shaped, and the locking member is parallel to the central axis of the driving wheel and/or the driven wheel.
  • the housing also includes a housing and a fixing piece, the housing includes an accommodating cavity for accommodating the gear set, the fixing piece and the swing head rod, and the gear set passes through the fixing piece fixed to the housing;
  • the locking part further includes a connecting part, at least part of the locking part is connected to the fixing part through the connecting part.
  • the fixing member includes a driving wheel supporting part and a driven wheel supporting part
  • the driving wheel supporting part is located between the driving wheel and the first inner surface of the housing
  • the driven wheel supports The part is located between the driven wheel and the first inner surface of the housing
  • the connecting part of the locking part is connected to the supporting part of the driving wheel
  • the connecting part of the locking part is connected to The driven wheel supporting part.
  • two of the locking members are included, and the gear set includes two of the driven wheels;
  • the two locking pieces are respectively arranged between the two driven wheel supporting parts and the driving wheel supporting part, and the connection part of each locking piece is connected to the driving wheel supporting part through a first connecting arm. , and connected to a driven wheel supporting part through the second connecting arm.
  • the first connecting arm is perpendicular to the second connecting arm.
  • An embodiment of the present invention also provides a medical stapler, including the above-mentioned swinging head mechanism.
  • the driving wheel when the driving wheel is driven to rotate, the driving wheel drives the driven wheel to rotate, and the rotational motion of the driven wheel is converted into the axial movement of the swing head rod through the cooperation structure of the driven wheel and the swing head rod, thereby making the swing
  • the head rod drives the swing head tab to move axially, so that the nail head of the stapler can easily and conveniently swing relative to the stapler body, and the nail head can be flexibly adjusted by controlling the rotation direction and angle of the driving wheel swing direction and swing angle.
  • Fig. 1 is a schematic structural view of a stapler according to a first embodiment of the present invention
  • Fig. 2 is a structural schematic diagram of the cooperation between the nail head and the swing head pull tab according to the first embodiment of the present invention
  • Fig. 3 is a structural schematic diagram of the cooperation between the swing head mechanism and the bushing according to the first embodiment of the present invention
  • Fig. 4 is a schematic structural view of the swing mechanism of the first embodiment of the present invention.
  • Fig. 5 is a top view of the swing mechanism of the first embodiment of the present invention.
  • Fig. 6 is the sectional view of A1-A1 direction in Fig. 5;
  • Fig. 7 is a schematic structural view of a second housing of the first embodiment of the present invention.
  • Fig. 8 and Fig. 9 are exploded views of the swing head mechanism after the second housing is removed according to the first embodiment of the present invention.
  • Fig. 10 is a schematic structural view of the first housing of the first embodiment of the present invention.
  • Fig. 11 is a schematic diagram of the cooperation between the swing head pull rod and the swing head pull piece according to the first embodiment of the present invention.
  • Fig. 12 is an exploded view of the cooperation between the swing head rod and the driven wheel according to the first embodiment of the present invention.
  • Fig. 13 and Fig. 14 are schematic diagrams of the swing head mechanism controlling the swing of the nail head along the R1 direction according to the first embodiment of the present invention
  • Fig. 15 and Fig. 16 are schematic diagrams of the swing head mechanism controlling the swing of the nail head along the R2 direction according to the first embodiment of the present invention
  • Fig. 17 is a schematic structural diagram of the cooperation between the swing head mechanism and the stapler body after omitting the second housing according to the second embodiment of the present invention.
  • Fig. 18 is a schematic structural diagram of the cooperation between the swing head mechanism and the stapler body after omitting the shell according to the second embodiment of the present invention.
  • Fig. 19 is a schematic structural view of the head swing mechanism omitting the casing according to the second embodiment of the present invention.
  • Fig. 20 is a front view of the head swing mechanism omitting the casing according to the second embodiment of the present invention.
  • Fig. 21 is a schematic structural view of a gear set according to a second embodiment of the present invention.
  • Fig. 22 is a schematic structural view of a fixing member according to a second embodiment of the present invention.
  • Fig. 23 is a schematic structural diagram of the cooperation between the gear set and the fixing member according to the second embodiment of the present invention.
  • Fig. 24 is a structural schematic diagram of the cooperation between the fixing part and the swing head rod according to the second embodiment of the present invention.
  • Fig. 25 is a schematic structural diagram of a second housing of the second embodiment of the present invention.
  • Fig. 26 is a structural schematic view of the cooperation between the fixing member and the second housing according to the second embodiment of the present invention.
  • Fig. 27 is a schematic structural view of the first housing of the second embodiment of the present invention.
  • Fig. 28 is a structural schematic diagram of the cooperation between the fixing member and the first housing according to the second embodiment of the present invention.
  • Fig. 29 is a top view of a medical stapler according to a third embodiment of the present invention.
  • Fig. 30 is a schematic structural diagram of the cooperation between the swing head mechanism and the stapler body after omitting the second housing according to the third embodiment of the present invention.
  • Fig. 31 is a schematic structural diagram of the cooperation between the swing head mechanism and the stapler body after omitting the first housing according to the third embodiment of the present invention.
  • Fig. 32 is a schematic structural view of the swing head mechanism without the casing according to the third embodiment of the present invention.
  • Fig. 33 is a schematic structural view of the head swing mechanism omitting the casing according to the third embodiment of the present invention.
  • Fig. 34 is a front view of the head swing mechanism omitting the casing according to the third embodiment of the present invention.
  • Fig. 35 is a top view of the head swing mechanism omitting the casing according to the third embodiment of the present invention.
  • Fig. 36 and Fig. 37 are structural schematic diagrams of the fixing member of the third embodiment of the present invention.
  • Fig. 38 is a top view of a fixing member according to a third embodiment of the present invention.
  • Figure 39 is an enlarged view at M in Figure 38;
  • Fig. 40 is a structural schematic view of the cooperation between the fixing member and the second housing according to the third embodiment of the present invention.
  • Fig. 41 is a schematic structural view of the first housing of the third embodiment of the present invention.
  • Fig. 42 is a structural schematic view of the cooperation between the fixing member and the first housing according to the third embodiment of the present invention.
  • Fig. 43 is a schematic structural diagram of the cooperation between the fixing part and the driving wheel according to the third embodiment of the present invention.
  • Fig. 44 is a structural schematic diagram of the cooperation between the fixing part and the swing head rod according to the third embodiment of the present invention.
  • Fig. 45 is a schematic diagram of the structure of the cooperation between the fixing member and the gear set according to the fourth embodiment of the present invention.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
  • the same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.
  • the present invention provides a head swing mechanism and a medical stapler comprising the head swing mechanism.
  • the medical stapler includes a nail head, a stapler body and a screw arranged between the nail head and the stapler body.
  • the swing head mechanism includes a driving wheel, a driven wheel, a swing head pull rod and a swing head pull piece, the drive wheel includes a drive wheel tooth portion, the driven wheel includes a driven wheel tooth portion and a first matching portion, and the driven wheel The teeth mesh with the driving gear teeth. Therefore, when the operator controls the rotation of the driving wheel, the driving wheel can drive the driven wheel to rotate.
  • the swing head pull rod includes a second matching portion and a pull tab fit portion, the swing head pull tab extends along the axial direction of the stapler and is connected to the pull tab fit portion of the swing head pull rod.
  • the second matching part cooperates with the first matching part, so that when the driven wheel rotates, the pull tab matching part of the swing head rod is driven to move along the axial direction of the stapler, and the driven wheel
  • the rotary motion is converted into the axial movement of the swing head pull rod, and the swing head pull piece is driven to move axially by the swing head pull rod, so that the nail head of the stapler can easily and conveniently realize the swing relative to the stapler body.
  • the present invention can flexibly adjust the swing direction and swing angle of the nail head by controlling the rotation direction and angle of the driving wheel.
  • the driven wheel refers to the gear that is provided with the first mating part that cooperates with the swing head rod
  • the driving wheel refers to the gear meshed with the driven wheel, but it does not specifically mean that the driving wheel must drive the driven wheel.
  • the wheel spins.
  • the driving wheel may rotate to drive the driven wheel to rotate, or the driven wheel may rotate to drive the driving wheel to rotate.
  • the medical stapler includes a nail head 9, a stapler body 11 , a firing handle 12 pivotally connected to the stapler body 11 and a head swing mechanism arranged between the nail head 9 and the stapler body 11 .
  • the stapler body 11 includes a body shell, a fixed handle 112 and a sleeve 111 , the distal side of the sleeve 111 is connected to the nail head 9 .
  • the nail head 9 includes a nail anvil 91 and a nail cartridge assembly 92 that are oppositely arranged, and a connecting piece 93 located on the proximal side of the nail anvil 91 and the nail cartridge assembly 92 .
  • the swing head mechanism includes two swing head pull tabs 8, the swing head pull tabs 8 are at least partly located inside the sleeve 111, and the sleeve 111 is omitted in FIG. 2 to illustrate the swing head pull tabs 8 and the cooperation of nail head 9.
  • the distal side of the swing pull tab 8 is connected to the connecting piece 93 .
  • the lateral swing of the nail head 9 relative to the axis S0 of the stapler can be controlled by the axial movement of the swing head tab 8 . Specifically, in the viewing angle of FIG.
  • the distal side and the proximal side are relative to the operator, the end closer to the operator is the proximal side, and the end farther away from the operator, that is, the end closer to the surgical site is the far side.
  • the direction along the axis of the stapler is the axial direction, that is, the direction from the distal side to the proximal side of the stapler, or the direction from the proximal side to the distal side of the stapler.
  • the distal side of the nail head 9 is the left side
  • the proximal side is the right side.
  • the S1 direction is the direction from the distal side to the proximal side of the stapler.
  • the S1 direction or the direction opposite to the S1 direction as the axial direction of the stapler.
  • the S2 direction in Figure 2 as the transverse direction of the stapler, that is, the width direction.
  • the S3 direction in Fig. 6 as the longitudinal direction of the stapler, that is, the height direction.
  • the inner side and the outer side are relative to the axis of the stapler, the side closer to the axis is the inner side, and the side farther away from the axis is the outer side.
  • “upper” and “lower” are described below from the perspectives in the figures, but these descriptions should not be used as limitations of the present invention. In different embodiments, the relative positional relationship of “upper” and “lower” can be interchanged.
  • the swinging head mechanism further includes a housing, a driving wheel 4 and a driven wheel 5 , and the driving wheel 4 and the driven wheel 5 form a gear set.
  • the driving wheel 4 and the driven wheel 5 are accommodated in an accommodating cavity inside the housing.
  • the swing head rod 6 is also located in the accommodating cavity.
  • the housing includes a first housing 3 located below and a second housing 2 located above.
  • the insides of the second housing 2 and the first housing 3 jointly define a sleeve channel 20 for accommodating part of the sleeve 111 .
  • the inner surface of the first housing 3 is the first inner surface of the housing, and the inner surface of the second housing 2 is the second inner surface of the housing.
  • the drive wheel 4 includes an operating portion and a drive wheel tooth portion 42 , the side wall of the drive wheel tooth portion 42 is at least partially provided with a first tooth surface.
  • the operating part is a knob 41 that is convenient for the operator to manually operate.
  • the driven wheel 5 may also include an operating part, and the driving wheel 4 is driven to rotate by manually operating the driven wheel 5 .
  • the driven wheel 5 includes a driven wheel tooth portion 52 , the side wall of the driven wheel tooth portion 52 is at least partially provided with a second tooth surface, and the first tooth surface meshes with the second tooth surface. Therefore, when the operator controls the rotation of the driving wheel 4 through the knob 41 , the driven wheel 5 can be driven to rotate through the meshing of the first tooth surface and the second tooth surface.
  • two driven wheels 5 are provided, and the two driven wheels 5 are located on the proximal side of the driving wheel 4 .
  • the two driven wheels 5 are arranged symmetrically with respect to the axis of the stapler, and the central axes of the two driven wheels 5 are parallel to the central axis of the driving wheel 4, and the centers of the two driven wheels 5
  • the distance from the shaft to the central axis of the driving wheel 4 is equal.
  • the shape of the accommodating cavity enclosed by the first housing 3 and the second housing 2 is adapted to the shape of the gear set.
  • the driven wheel tooth portion 52 of the driven wheel 5 is further provided with a first matching portion on the side facing the first housing 3 .
  • the first matching portion is the eccentric wheel part 53
  • the outer contour of the eccentric wheel part 53 is circular or arc-shaped.
  • the outer contour of the eccentric wheel portion 53 may also be in other shapes, such as triangle or other polygons.
  • the head swing mechanism also includes a head swing pull rod 6 accommodated in the housing.
  • two swing head pull rods 6 corresponding to the driven wheels 5 are included, and the two swing head pull rods 6 are arranged symmetrically with respect to the axial direction of the stapler, and each swing head pull rod 6 are respectively connected with one of the swing pull tabs 8.
  • the swing pull rod 6 includes a second matching portion and a pull tab fit portion 63 , and the pull tab fit portion 63 of the swing pull rod 6 is connected to the proximal side of the corresponding swing pull tab 8 .
  • the second matching part is an eccentric wheel matching part 61, which cooperates with the eccentric wheel part 53, so that when the driven wheel 5 rotates, it drives the pull piece of the swing head rod 6 to cooperate
  • the part 63 moves along the axial direction of the stapler, and converts the rotational movement of the driven wheel 5 into the axial movement of the swing head rod 6 .
  • the driving wheel 4 drives the driven wheel 5 to rotate through the meshing of the first tooth surface and the second tooth surface, and the rotation of the driven wheel 5 drives the swing head rod 6 along the axial direction of the stapler. Therefore, the swing head pull piece 8 can be driven to move in the axial direction through the swing head pull rod 6, so that the nail head 9 of the stapler can easily and conveniently realize the swing relative to the stapler body 11. And the present invention can flexibly adjust the swing direction and swing angle of the nail head 9 by controlling the direction and angle of rotation of the driving wheel 4 .
  • the surface of the second housing 2 is provided with a receiving hole 21 , and the knob 41 passes through the receiving hole 21 and is exposed outside the second housing 2 .
  • the inner surface of the first housing 3 is provided with a support portion 31 protruding from the first inner surface, and the drive wheel 4 is provided with a sliding groove 43 on a side facing the inner surface of the first housing 3 ,
  • the supporting part 31 is at least partially located in the sliding groove 43 , and the driving wheel 4 can rotate relative to the supporting part 31 .
  • the support portion 31 is an arc-shaped support portion 31
  • the chute 43 is an annular chute 43
  • the arc-shaped support portion 31 is coaxially arranged with the annular chute 43 and Sizes match.
  • the sliding slot 43 is arranged coaxially with the driving gear tooth portion 42
  • the diameter of the sliding slot 43 is smaller than the outer diameter of the driving gear tooth portion 42 .
  • the support part is an arc-shaped support part
  • the chute can also be an arc-shaped chute
  • the arc length of the chute is longer than the arc length of the support part, This allows the support part to have a circumferential rotation space in the sliding groove.
  • a sliding groove may also be provided on the inner surface of the first housing 3
  • a slide groove may be provided on the side of the driving wheel 4 facing the inner surface of the first housing 3
  • the support part is located in the chute, and the support part can rotate relative to the chute, so that the driving wheel 4 can rotate relative to the first casing 3 .
  • the driven wheel 5 further includes a driven wheel rotation shaft 51, and the inner surface of the second housing 2 and the inner surface of the first housing 3 are respectively set There is a second fixing hole 22 and a first fixing hole 32 , and the first end 511 and the second end 512 of the driven wheel rotating shaft 51 respectively enter the second fixing hole 22 and the first fixing hole 32 .
  • the driven wheel rotating shaft 51 passes through the driven wheel tooth portion 52 and the eccentric wheel portion 53 , and the driven wheel tooth portion 52 and the eccentric wheel portion 53 can rotate around the driven wheel rotating shaft 51 rotate.
  • the driven wheel tooth portion 52 and the eccentric wheel portion 53 can rotate around the driven wheel rotation shaft 51, and the driven wheel rotation shaft 51 can be non-rotatably fixed to the second fixing hole 22 and the In the first fixing hole 32, the driven wheel tooth portion 52 and the eccentric wheel portion 53 can rotate relative to the driven wheel rotation shaft 51, or the driven wheel rotation shaft 51 can be rotatably embedded in the The second fixing hole 22 and the first fixing hole 32 , the driving gear tooth portion 42 and the eccentric wheel portion 53 are non-rotatably sleeved on the driven wheel rotation shaft 51 , the driving gear tooth portion 42 and the The eccentric part 53 can rotate around the axis of the driven wheel rotating shaft 51 together with the driven wheel rotating shaft 51 .
  • the first inner surface of the housing is provided with a guide groove 33 extending in the axial direction of the stapler
  • the swing head rod 6 also includes a guide portion 62
  • the guide portion 62 is located in the guide groove 33, and is limited by the guide groove 33 to only have axial movement.
  • the swing head pull rod 6 includes two guide portions 62, and the two guide portions 62 are respectively located on the distal side and the proximal end side of the eccentric wheel matching portion 61, so
  • the guide portion 62 is in the shape of a strip extending along the axial direction of the stapler.
  • the rotating shaft 51 of the driven wheel passes through the center of the tooth portion 52 of the driven wheel.
  • the eccentric wheel portion 53 is eccentrically arranged with respect to the driven wheel rotating shaft 51, that is, the center of the driven wheel rotating shaft 51 has a first distance d1 from the center axis O1 of the eccentric wheel portion 53 (as shown in FIG. 13 . Show).
  • a fifth matching portion is opened in the eccentric wheel matching portion 61 of the swing head rod 6 , and the fifth matching portion is a matching hole, and the eccentric wheel portion 53 at least partially enters the matching hole.
  • the fifth matching portion of the swing head rod 6 can also be a matching groove, and the eccentric wheel portion 53 at least partially enters the matching groove, and the eccentric wheel portion 53 is in contact with the matching groove.
  • the matching groove or the matching hole is used to drive the swing head rod 6 to move in the axial direction.
  • the handle fitting part 63 is a raised part arranged on the inner side of the eccentric wheel fitting part 61, and the near end side of the swing head pull part 8 is provided with a The hole for the protruding part fits, and the protruding part is embedded in the hole on the proximal side of the swing head pull piece 8 .
  • Each side of the raised portion is preferably a right-angled surface, so as to ensure the stability of the cooperation between the raised portion and the swing-head pull piece 8, and avoid accidental slipping of the two.
  • the raised portion is arranged at the central position of the swing head rod 6 in the axial direction, that is, the distance from the center of the raised portion to the distal end of the swing head rod 6 is equal to the distance of the raised portion
  • the distance from the center to the proximal end of the swing head rod 6 when the swing head pull rod 6 pulls the swing head pull piece 8 to move axially, further avoids lateral deflection of the swing head pull rod 6 due to external force.
  • the pull piece matching portion 63 can also be a groove provided on the inside of the eccentric wheel matching portion 61, and the near end side of the swing head pull piece 8 is provided with a The protruding part matched with the groove, the protruding part is embedded in the groove, and the groove is preferably arranged at the central position of the swing head rod 6 along the axial direction.
  • the inner surface of the eccentric wheel matching portion 61 is a plane parallel to the axial direction of the stapler, which can better adapt to the sheet structure of the swing head puller 8.
  • the two guide parts 62 are respectively connected to the middle part of the distal end surface and the proximal end surface of the eccentric wheel matching part 61, so that the guide groove 33 ( Shown in Fig. 3) the limiting effect on the guide portion 62 can act on each position of the swing head tie rod 6 more evenly, so as to keep the swing head pull rod 6 from moving due to the eccentric wheel portion 53 Lateral deflection due to rotational movement.
  • the matching hole of the eccentric wheel fitting part 61 is a waist-shaped hole 611 comprising two arc-shaped sides and two straight sides, the radius of the arc-shaped sides is substantially equal to the radius of the eccentric wheel part 53, and the waist-shaped The two straight sides of the hole 611 extend transversely of the stapler.
  • the shape of the matching hole can also be different from the waist shape shown in FIG. Push the eccentric wheel matching part 61 to move in the axial direction.
  • FIG. 13 shows the cooperation structure of the driving wheel 4 , the driven wheel 5 and the swing head rod 6 in the initial state.
  • the central axes O1 of the eccentric wheel portions 53 of the two driven wheels 5 are located outside the corresponding driven wheel rotating shafts 51 .
  • the central axes of the eccentric wheel portions 53 of the two driven wheels 5 may also be located inside the corresponding driven wheel rotating shafts 51 .
  • FIG. 14 shows the state in which the driving wheel 4 rotates 15° along the R3 direction in the state of FIG. 13 .
  • the upper swing head rod 6 shown in FIG. 14 moves in the direction of W1 compared to that in FIG.
  • the proximal side moves so that the nail head 9 can swing along the R1 direction shown in FIG. 2 .
  • FIG. 15 in the initial state, when the driving wheel 4 is operated to rotate in the R5 direction, the driving wheel 4 drives the driven wheel 5 to rotate in the R6 direction, and enters the state in FIG. 16 .
  • FIG. 16 shows the state in which the driving wheel 4 rotates 30° along the R5 direction in the state of FIG. 15 .
  • the upper swing head rod 6 shown in FIG. 16 moves in the direction of W3 compared to that in FIG.
  • the distal side moves so that the nail head 9 can swing in the R2 direction shown in FIG. 2 . Comparing Fig. 14 and Fig. 16, it can be seen that when the driving wheel 4 rotates in different directions, the nail head 9 can rotate in different directions.
  • the driving wheel 4 has different rotation angles, so that the movement displacement of the swing head pull rod 6 is different, so that the swing angle of the nail head 9 is also different.
  • FIG. 17-28 show the structure of the swing mechanism of the second embodiment of the present invention.
  • the main difference between the second embodiment and the above-mentioned first embodiment is that it also includes a fixing part, and the way of cooperating between the gear set and the housing is different.
  • the rest of the structure of the stapler in this embodiment is the same as the first embodiment, and the principle of the gear set driving the swing head is the same, so reference is made to Figure 1, Figure 2, Figures 13-16 and Figures 17-28 below Make an introduction.
  • the head swing mechanism includes a housing, a gear set, a head swing pull rod 6 , a fixing member 7 and a head swing pull piece 8 .
  • the gear set, the swing head rod 6 and the fixing member 7 are all accommodated in an accommodating cavity inside the housing.
  • the gear set includes a driving wheel 4 and a driven wheel 5
  • the driving wheel 4 includes an operating portion and a toothing portion 42 of the driving wheel.
  • the operating part is a knob 41 at least partially exposed outside the second casing 2 .
  • the driven wheel 5 may also include an operating part, and the driving wheel 4 is driven to rotate by manually operating the driven wheel 5 .
  • the driven wheel 5 includes a driven wheel tooth portion 52 , a first fitting portion and a driven wheel rotation shaft 51 , and the driven wheel rotation shaft 51 passes through the driven wheel tooth portion 52 and the first fitting portion.
  • the swing head pull rod 6 includes a second matching portion and a pull piece matching portion 63, the pull piece matching portion 63 is connected to the proximal end side of the swing head pull piece 8, and the second matching portion is connected to the first pull piece.
  • two oscillating head rods 6 are provided, and the two oscillating head rods 6 are arranged symmetrically with respect to the axial direction of the stapler.
  • the two swing rods 6 move in opposite directions.
  • two driven wheels 5 are provided, and the two driven wheels 5 are located at the proximal end side of the driving wheel 4 .
  • the two driven wheels 5 are arranged symmetrically with respect to the axis of the stapler, and the central axes of the two driven wheels 5 are parallel to the central axis of the driving wheel 4, and the centers of the two driven wheels 5
  • the distance from the shaft to the central axis of the driving wheel 4 is equal.
  • the shape of the accommodating cavity enclosed by the first housing 3 and the second housing 2 is adapted to the shape of the gear set.
  • the driven wheel 5 When the operator controls the driving wheel 4 to rotate, the driven wheel 5 can be driven to rotate through the gear meshing between the driving wheel tooth portion 42 and the driven wheel tooth portion 52 .
  • the rotational movement of the driven wheel 5 is converted into the axial movement of the swing head rod 6, and the swing head pull piece 8 is driven along the Axial movement, so that the nail head 9 (shown in Figure 1) of the stapler can be easily and conveniently realized to swing relative to the stapler body 11 (shown in Figure 1), by controlling the rotation angle of the driving wheel 4, it can be flexibly Adjust the swing direction and swing angle of the nail head 9.
  • the housing includes a first inner surface and a second inner surface, and the first inner surface and the second inner surface surround an accommodating cavity. As shown in Figure 1 and Figure 17, in this embodiment, the housing is divided into a first housing 3 located below and a second housing 2 located above, the first housing 3 and the second housing 2 A casing channel 20 for passing through the casing 11 is defined in the second casing 2 .
  • the first inner surface is the inner surface of the first shell 3
  • the second inner surface is the inner surface of the second shell 2 .
  • the fixing member 7 is located between the gear set and the first inner surface, the gear set is fixed on the first inner surface through the fixing member 7, and the driving wheel 4 and the driven wheel 5 can rotate relative to the fixing member 7, which is beneficial to maintain the structural stability of the swing head mechanism, avoid the unstable position of the nail head 9 due to the instability of the gear set during use, and improve the surgical effect.
  • the fixing member 7 includes a third surface facing the first inner surface and a fourth surface facing the second inner surface.
  • the gear set is at least partially disposed between the fourth surface of the fixing member 7 and the second inner surface.
  • the swing head pull rod 6 is arranged between the third surface of the fixing member 7 and the first inner surface, and the fixing member 7 and the swing head pull rod 6 are fixed relative to the housing in the height direction. .
  • the first matching part is an eccentric wheel part 53
  • the second matching part is an eccentric wheel matching part 61, which cooperates with the eccentric wheel part 53 so that the driven wheel 5 When rotating, it drives the pull-tab fitting part 63 of the swing head rod 6 to move along the axial direction of the stapler, and converts the rotational motion of the driven wheel 5 into the axial motion of the swing head rod 6 .
  • the outer contour of the eccentric wheel portion 53 is circular or arc-shaped. In other embodiments, the outer contour of the eccentric wheel portion 53 may also be in other shapes, such as triangle or other polygons.
  • the driven wheel rotation shaft 51 passes through the center of the driven wheel tooth portion 52 .
  • the eccentric wheel portion 53 is eccentrically arranged with respect to the driven wheel rotating shaft 51, that is, the center of the driven wheel rotating shaft 51 has a first distance from the center axis O1 of the eccentric wheel portion 53 (refer to FIG. 13 The first distance d1).
  • a third matching hole is opened in the eccentric wheel matching portion 61 of the swing head rod 6 , and the third matching hole is a waist-shaped hole 611 , and the eccentric wheel portion 53 at least partially enters the waist-shaped hole 611 .
  • the third matching hole may also have other shapes.
  • a matching groove may also be provided in the eccentric wheel matching portion 61 of the swing head rod 6 , and the eccentric wheel portion 53 at least partially enters the matching groove.
  • the inner surface of the first housing 3 is provided with a guide groove 33 extending along the axial direction of the stapler, the guide groove 33, the swing head pull rod 6 also includes a guide part 62, the position setting of the guide part 62 and the cooperation between the guide part 62 and the guide groove 33 are the same as those of the first embodiment, and will not be repeated here.
  • the handle fitting part 63 is a raised part arranged inside the eccentric wheel fitting part 61, and the near end side of the swing head puller 8 is provided with a hole, and the raised portion is embedded in the hole on the proximal side of the swing pull tab 8 .
  • the structural cooperation between the handle matching portion 63 and the swing handle 8 and the modified examples are the same as those in the first embodiment, and will not be repeated here.
  • the working principle of driving the nail head to swing in the R1 or R2 direction relative to the stapler body by the swinging head mechanism can refer to the description of the working principle in the first embodiment in conjunction with Figures 13 to 16, which will not be described here repeat.
  • the fixing member 7 includes a driving wheel supporting portion 74 and two driven wheel supporting portions 75 .
  • the driving wheel supporting part 74 is located between the driving wheel 4 and the first inner surface of the housing, and the driven wheel supporting part 75 is located between the driven wheel 5 and the first inner surface of the housing. between.
  • the swing head rod 6 is located between the driven wheel supporting portion 75 and the first inner surface.
  • a relief groove 741 is provided on a side of the driving wheel supporting portion 74 facing the first inner surface of the casing. As shown in Fig. 27 and Fig.
  • the position corresponding to the first inner surface and the relief groove 741 is provided with a sleeve stopper 35, and the relief groove 741 and the sleeve stopper 35 surround A first channel 30 extending axially is combined, and the sleeve 11 sleeved on the outside of the swing pull piece 8 passes through the first channel 30 .
  • the surface of the relief groove 741 is preferably a circular arc surface, and the surface of the sleeve stopper 35 is also preferably a circular arc surface, so that the first channel 30 is a cylindrical channel surrounded by a composite, so that Forming a better fit with the outer surface of the cylindrical sleeve 11 can also provide a good support for the sleeve 11 .
  • a second channel 79 extending axially is formed between the two driven wheel support parts 75 , so as to provide the second channel 79 for the proximal end of the sleeve 11 to pass through.
  • the driven wheel support part 75 of the fixed member 7 is provided with a through hole 751
  • the driven wheel rotating shaft 51 passes through the through hole 751
  • the eccentric wheel of the driven wheel 5 The part 53 is matched with the eccentric wheel matching part 61 of the swing head rod 6 after passing through the through hole 751 . Therefore, in this embodiment, the driving gear tooth portion 42 of the driving wheel 4 and the driven gear tooth portion 52 of the driven wheel 5 are arranged on the fourth surface of the fixing member 7 and the second surface of the housing.
  • the eccentric part 53 passes through the passage of the fixing member 7
  • the hole 751 is matched with the swing head pull rod 6 behind.
  • the axial length of the through hole 751 of the driven wheel supporting part 75 is greater than the radius of the eccentric wheel part 53, and is greater than the axis of the waist hole 611 of the eccentric wheel matching part 61 In the lengthwise direction, when the eccentric wheel part 53 rotates, the through hole 751 can provide enough space for the eccentric wheel part 53 to rotate eccentrically and the eccentric wheel matching part 61 to move axially.
  • the guide part 62 is opposed to the distal side wall and the proximal side wall of the through hole 751 of the driven wheel support part 75 in the height direction, so as to maintain a gap between the fixing part 7 and the swing head rod 6 . Relatively stable positional relationship.
  • the driving wheel support portion 74 is provided with a first fixing portion 71 on the side facing the driving wheel 4
  • the driving wheel 4 is provided with a first fixing portion 71 on the side facing the fixing member 7 .
  • Two fixing parts 44 , the first fixing part 71 and the second fixing part 44 form an embedded connection.
  • the first fixing part 71 is a first fixing column provided on the driving wheel support part 74 protruding toward the driving wheel 4, and the second fixing part 44 is set on the fixing column facing the driving wheel 4.
  • a cylindrical groove on one side of the part 7, the groove is coaxially arranged with the driving wheel 4, the first fixing post at least partly enters the groove, and makes the driving wheel 4 relatively
  • the first fixing part 71 rotates.
  • the first fixing part may also be a groove provided on the side of the driving wheel support part 74 facing the driving wheel 4, and the second fixing part may be a The first fixing column protruding from the driving wheel 4 toward the fixing member 7 is arranged coaxially with the driving wheel 4 , and the first fixing column at least partially enters the groove.
  • the inner surface of the first housing 3 and the inner surface of the second housing 2 are respectively provided with a first fixing hole 32 and a second fixing hole 22, the driven wheel rotates
  • the first end 511 and the second end 512 of the shaft 51 respectively enter the first fixing hole 32 and the second fixing hole 22 , and the driven wheel 5 can rotate around the driven wheel rotating shaft 51 .
  • the structure of the driven wheel rotation shaft 51 cooperating with the driven wheel 5 and the housing can refer to the corresponding part of the first embodiment, and will not be repeated here.
  • the sleeve channel 20 marked in FIG. 25 and FIG. 27 is a part of the sleeve channel. After the first housing 2 and the second housing 3 are combined, the two parts are combined into a complete sleeve channel 20 .
  • the surface of the second housing 2 is provided with a receiving hole 21 , and the knob 41 is exposed outside the second housing 2 through the receiving hole 21 .
  • the fixing member 7 at least partially enters into the accommodating cavity of the second housing 2 .
  • the inner surface of the second housing 2 is provided with at least one limiting member 23, the limiting member 23 is distributed on the outer side of the driven wheel support portion 75, and the limiting member 23 supports the driven wheel The axial movement of the portion 75 is restricted.
  • the driving wheel support portion 74 is provided with a third fixing portion 72 on the side facing the first inner surface of the housing, and the first inner surface of the housing is provided with The fourth fixing part 39 , the third fixing part 72 forms an embedded connection with the fourth fixing part 39 .
  • the third fixing portion 72 is a second fixing column protruding toward the first inner surface of the casing
  • the fourth fixing portion 39 is a first fixing column provided on the first inner surface.
  • the support seat, the center of the first support seat is provided with a first matching hole, and the second fixing column at least partially enters the first matching hole.
  • the third fixing part 72 and the fourth fixing part 39 form a non-rotatable connection, for example, the third fixing part 72 and the fourth fixing part 39 may be an interference fit.
  • the driving wheel supporting part 74 is provided with two third fixing parts 72 arranged laterally, and the first housing 3 is provided with two fourth fixing parts 39 arranged laterally, it can further prevent the first fixing part 72 from The three fixing parts 72 rotate with the fourth fixing part 39 .
  • the third fixing part 72 may also include a first matching hole
  • the fourth fixing part 39 is a fixing column protruding toward the driving wheel supporting part 74, or directly on the The first inner surface is provided with a fixing hole corresponding to the second fixing column.
  • the third fixing portion 72 has a non-circular section
  • the fourth fixing portion 39 is a fixing hole with a non-circular section, such as a triangular or polygonal section, so as to prevent the fixing Part 7 rotates relative to the housing.
  • a fifth fixing part 73 is provided on the side of the driven wheel support part 75 facing the first inner surface
  • a sixth fixing part 73 is provided on the first inner surface of the housing. part 34
  • the fifth fixing part 73 forms an embedded connection with the sixth fixing part 34 .
  • the fifth fixing portion 73 is a third fixing column protruding toward the first inner surface
  • the sixth fixing portion 34 is a second support seat provided on the first inner surface
  • a second matching hole is opened in the center of the second supporting seat, and the third fixing column at least partially enters the second matching hole.
  • the fifth fixing part 73 and the sixth fixing part 34 form a non-rotatable connection, for example, the third fixing part 72 and the fourth fixing part 39 may be an interference fit.
  • the fixing member 7 is provided with two fifth fixing portions 73 arranged horizontally, and the first housing 3 is provided with two sixth fixing portions 34 arranged horizontally, the fifth fixing portion 73 can be further prevented from being fixed.
  • the part 73 rotates with the sixth fixing part 34 .
  • the fifth fixing part 73 may also include a second fitting hole, and the sixth fixing part 34 is a fixing post protruding toward the driven wheel supporting part 75, or directly on the
  • the first inner surface is provided with a fixing hole corresponding to the third fixing column.
  • the swing mechanism further includes a locking member.
  • the locking part meshes with the teeth of the driving gear and/or the teeth of the driven gear in the gear set to block its rotation, improve the position stability of the nail head and avoid uncontrollable swing.
  • the driving wheel and/or the driven wheel in the gear set are rotated by external force, the locking part moves away from the tooth portion of the driving wheel and/or the tooth portion of the driven wheel without blocking its rotation or affecting the swing head function of the organization.
  • composition of the medical stapler and the swing driving method of the swing head 8 to the nail head 9 are similar to those of the first embodiment, which can be referred to above in conjunction with Figure 1 and Figure 2 description, which will not be repeated here.
  • the oscillating head mechanism includes a housing, and the housing includes a first inner surface and a second inner surface.
  • the housing is divided into a first housing 3 located below and a second housing 2 located above, and the first housing 3 and the second housing 2 share a A third channel 20 is defined for passage through said sleeve 11 .
  • the third channel 20 marked in FIG. 31 and FIG. 32 is a part of the third channel. After the first housing 2 and the second housing 3 are combined, the two parts are combined into a complete third channel 20 .
  • the first inner surface is the inner surface of the first shell 3
  • the second inner surface is the inner surface of the second shell 2 .
  • the swing head mechanism includes a housing, a gear set, a fixing member 7 and a swing head rod 6, which are enclosed and formed by the first housing 3 and the second housing 2. in the holding chamber.
  • the gear set includes a driving wheel 4 and a driven wheel 5
  • the driving wheel 4 includes an operating portion and a toothing portion 42 of the driving wheel.
  • the operating part is a knob 41 at least partially exposed outside the second casing 2 .
  • the driven wheel 5 may also include an operating part, and the driving wheel 4 is driven to rotate by manually operating the driven wheel 5 .
  • the driven wheel 5 includes a driven wheel tooth portion 52 , a first fitting portion and a driven wheel rotation shaft 51 , and the driven wheel rotation shaft 51 passes through the driven wheel tooth portion 52 and the first fitting portion.
  • the tooth portion 52 of the driven wheel meshes with the tooth portion 42 of the driving wheel, so that the driven wheel 5 can be driven to rotate when the driving wheel 4 rotates.
  • the swing head pull rod 6 includes a second matching portion and a pull piece matching portion 63, the pull piece matching portion 63 is connected to the proximal end side of the swing head pull piece 8, and the second matching portion is connected to the first pull piece.
  • the matching parts cooperate so that when the driven wheel 5 rotates, it drives the pull-tab fitting part 63 of the swing-head pull rod 6 to move along the axial direction of the stapler, and then drives the swing-head pull-tab 8 to move in the axial direction. sports.
  • the driven wheel 5 drives the pull-tab fitting part 63 of the swing-head pull rod 6 to move along the axial direction of the stapler, and then drives the swing-head pull-tab 8 to move in the axial direction. sports.
  • the driven wheel 5 drives the pull-tab fitting part 63 of the swing-head pull rod 6 to move along the axial direction of the stapler, and then drives the swing-head pull-tab 8 to move in the axial direction. sports.
  • the driven wheel 5 drives the pull-tab fitting part 63 of the swing-head pull rod 6 to move along the axial direction of the stapler, and then drives the swing-head pull-tab 8 to move in the axial direction. sports.
  • the swing head pull rod 6 and the swing head can be driven
  • two swing head pull rods 6 are provided, and the two swing head pull rods 6 are relative to the axis of the stapler. set symmetrically.
  • the driving wheel 4 rotates, the two swing rods 6 move in opposite directions.
  • two driven wheels 5 are provided.
  • the positional relationship and structural relationship between the driving wheel 4 and the driven wheel 5 are similar to those of the first embodiment, and will not be repeated here.
  • the drive gear tooth portion 42 includes a plurality of drive gear teeth.
  • the swing mechanism further includes at least one locking member 76 , and the locking member 76 includes a locking portion 761 .
  • the locking portion 761 meshes with the driving wheel tooth portion 42 to block the rotation of the driving wheel 4 , improve the positional stability of the nail head 9 and avoid uncontrollable swinging.
  • the knob 41 of the driving wheel 4 When the knob 41 of the driving wheel 4 is operated to drive the driving wheel 4 to rotate, the locking portion 761 moves away from the driving wheel tooth portion 42 under the force of the driving wheel tooth portion 42 without blocking the rotation of the driving wheel 4, Thus the head swing mechanism can still control the swing of the nail head 9, and the normal realization of the head swing control function of the head swing mechanism will not be affected.
  • the locking element 76 is at least partially elastic.
  • the locking portion 761 is at least partially embedded between two adjacent driving gear teeth, and the locking member 76 has no elastic deformation or only a small amount of elastic deformation.
  • the locking member 76 remains embedded between two adjacent driving gear teeth, forming a resistance to the rotation of the driving gear tooth portion 42 .
  • the force is greater than the force that makes the locking member 76 elastically deform, and the locking portion 761 elastically deforms under the force of the driving gear tooth portion 42 and moves away from the driving gear tooth portion 42 , Just do not block the rotation of described driving wheel 4, now the swing head mechanism can realize the swing of control nail head 9.
  • the driving wheel 4 stops rotating, and the locking part 761 moves toward the direction close to the tooth part 42 of the driving wheel under the action of the elastic restoring force and re-enters the two sides. Between two adjacent driving gear teeth, it is meshed with the driving gear tooth portion 42 again, thereby keeping the driving gear 4 at the current position and unintentional shaking will not occur, and the nail head can be well fixed. Section 9 remains at the current swing angle.
  • the swinging head mechanism further includes a fixing member 7 .
  • the fixing member 7 is located between the gear set and the first inner surface of the housing, the gear set is fixed on the first inner surface of the housing through the fixing member 7, and the driving wheel 4 and the driven wheel 5 can rotate relative to the fixing member 7, which is beneficial to maintain the structural stability of the swing head mechanism, and avoid the unstable position of the nail head 9 due to the instability of the gear set during use. Improve the effect of surgery.
  • the fixing member 7 includes a driving wheel supporting portion 74 and two driven wheel supporting portions 75 .
  • the driving wheel supporting part 74 is located between the driving wheel 4 and the first inner surface of the housing, and the driven wheel supporting part 75 is located between the driven wheel 5 and the first inner surface of the housing. between.
  • the swing head rod 6 is located between the driven wheel supporting portion 75 and the first inner surface of the housing.
  • the locking member 76 further includes a connecting portion 762 through which the locking portion 761 is connected to the fixing member 7 .
  • the fixing member 7 is fixed on the first casing 3 . Therefore, the locking member 76 can be fixed to the first housing 3 through the fixing member 7 . The way of fixing the fixing member 7 to the gear set and the first housing 3 will be described in detail below.
  • the first matching part is an eccentric wheel part 53
  • the second matching part is an eccentric wheel matching part 61, which cooperates with the eccentric wheel part 53 so that when the driven wheel 5 rotates , to convert the rotational motion of the driven wheel 5 into the axial motion of the swing head rod 6 .
  • the matching mode and modification example of the eccentric wheel part 53 and the eccentric wheel matching part 61 are the same as those of the first embodiment, and will not be repeated here.
  • a guide groove 33 is provided on the inner surface of the first housing 3 , and the guide groove 33 extends along the axial direction of the stapler.
  • the swing head rod 6 also includes a guide portion 62 .
  • the structure and matching relationship between the guide groove 33 and the guide portion 62 are the same as those in the first embodiment, and will not be repeated here.
  • the structure, cooperation and modifications of the eccentric wheel matching part 61, the pull piece matching part 63 and the swing head pull piece 8 are the same as those of the first embodiment. I won't repeat them here.
  • the working principle of driving the nail head to swing in the direction of R1 or R2 relative to the stapler body by the swinging head mechanism can refer to the description of the working principle in the first embodiment in conjunction with Figures 13-16, which will not be described here repeat.
  • the locking member 76 is rod-shaped, and the locking member 76 is parallel to the central axis of the driving wheel 4 .
  • the fixing member 7 includes two driven wheel supporting parts 75 .
  • a second channel 79 extending axially is formed between the two driven wheel supporting parts 75 , so that the proximal end of the sleeve 11 is provided with the second channel 79 to pass through.
  • Two locking pieces 76 are arranged on the fixing piece 7, and the two locking pieces 76 are arranged symmetrically with respect to the axis of the stapler, and the two locking pieces 76 are respectively arranged on the two locking pieces 76.
  • each locking piece 76 is connected to the driving wheel supporting part 74 through the first connecting arm 77, and connected to the driving wheel supporting part 74 through the second connecting arm. 78 is connected to a driven wheel supporting portion 75 .
  • the locking member 76 is fixed between the driving wheel support portion 74 and the driven wheel support portion 75 by the first connecting arm 77 and the second connecting arm 78, so that the locking member can be improved. 76 and the fixing member 7 for structural stability.
  • the locking member 76 , the first connecting arm 77 and the second connecting arm 78 may be integrally formed with the driving wheel supporting portion 74 and the driven wheel supporting portion 75 .
  • first connecting arm 77 and the second connecting arm 78 may also be connected to the driving wheel supporting portion 74 and the driven wheel supporting portion 75 by welding.
  • first connecting arm 77 and the second connecting arm 78 can also be integrally formed with the driving wheel supporting portion 74 and the driven wheel supporting portion 75, and The connecting portion 762 of the locking member 76 is integrally formed.
  • the first connecting arm 77 is perpendicular to the second connecting arm 78 . Therefore, when the locking member 76 is elastically deformed by being driven by the tooth portion of the driving wheel 4, the end of the connecting portion 762 of the locking member 76 is connected by the first connecting arm 77 and the second connecting arm 77.
  • the connecting arm 78 remains in a stable position against axial and lateral movement.
  • the locking portion 761 includes two inclined guide surfaces 7611, when the locking portion 761 meshes with the tooth portion of the driving wheel 4, the locking portion
  • the guide surface 7611 of 761 at least partially enters between two adjacent teeth of two driving wheels 4, and the two guiding surfaces 7611 are respectively opposite to the side surfaces of two adjacent teeth of two driving wheels 4 .
  • the teeth of the drive wheel 4 exert a force on the guide surface 7611, and the force is decomposed by the guide surface 7611 to drive the locking part 761. away from the force of the driving wheel 4 , and the guiding surface 7611 can better guide the disengagement of the locking portion 761 from the tooth portion 42 of the driving wheel.
  • the side of the locking portion 761 facing the tooth portion 42 of the driving wheel can also be set as an integral arc surface, and the locking portion 761 and the driving wheel When the tooth portions 42 are engaged, the arc surface of the tooth portion 42 of the driving gear at least partially enters between the teeth of two adjacent driving gears 4 .
  • the teeth of the drive wheel 4 exert a force on the guide surface 7611, and the force is decomposed by the arc surface to drive the locking part 761. away from the force of the driving wheel 4 , and the arc surface can better guide the disengagement of the locking portion 761 from the tooth portion 42 of the driving wheel.
  • the inner surface of the first housing 3 and the inner surface of the second housing 2 are respectively provided with a first fixing hole 32 and a second fixing hole 22, and the driven wheel rotates
  • the first end 511 and the second end 512 of the shaft 51 respectively enter the first fixing hole 32 and the second fixing hole 22 , and the driven wheel 5 can rotate around the driven wheel rotating shaft 51 .
  • the cooperation mode of the driven wheel 5 , the driven wheel rotating shaft 51 and the housing is the same as that of the first embodiment, and will not be repeated here.
  • the surface of the second housing 2 is provided with a receiving hole 21 , and the knob 41 passes through the receiving hole 21 and is exposed to the outside of the second housing 2 .
  • the fixing member 7 at least partially enters into the accommodating cavity of the second housing 2 .
  • the inner surface of the second housing 2 is provided with at least one limiting member 23, the limiting member 23 is distributed on the outer side of the driven wheel support portion 75, and the limiting member 23 supports the driven wheel The axial movement of the portion 75 is restricted.
  • the driving wheel support part 74 is provided with a relief groove 741 on the side facing the inner surface of the first housing 3, and the inner surface of the first housing 3 is in contact with the inner surface of the first housing 3.
  • the position corresponding to the relief groove 741 is provided with a sleeve stopper 35, and the relief groove 741 and the sleeve stopper 35 form a first axially extending channel 30, which is sleeved on the swing head.
  • the sleeve 11 outside the tab 8 passes through said first channel 30 .
  • the surface of the relief groove 741 is preferably a circular arc surface, and the surface of the sleeve stopper 35 is also preferably a circular arc surface, so that the first channel 30 is a cylindrical channel surrounded by a composite, so that Forming a better fit with the outer surface of the cylindrical sleeve 11 can also provide a good support for the sleeve 11 .
  • the driving wheel supporting part 74 is provided with a third fixing part 72 on the side facing the first inner surface of the housing, and a fourth fixing part 72 is provided on the first inner surface of the housing. part 39 , the third fixing part 72 forms an embedded connection with the fourth fixing part 39 .
  • the cooperation and modification of the third fixing portion 72 and the fourth fixing portion 39 are the same as those of the second embodiment with the same numbers, and will not be repeated here.
  • the driven wheel supporting portion 75 is provided with a fifth fixing portion 73 on one side facing the first inner surface of the casing, and a sixth fixing portion 73 is arranged on the first inner surface of the casing. part 34 , and the fifth fixing part 73 forms an embedded connection with the sixth fixing part 34 .
  • the cooperation and modifications of the fifth fixing portion 73 and the sixth fixing portion 34 are the same as those of the second embodiment with the same numbers, and will not be repeated here.
  • the driving wheel supporting portion 74 is provided with a first fixing portion 71 on the side facing the driving wheel 4
  • the driving wheel 4 is provided with a second fixing portion on the side facing the fixing member 7 44 (see FIG. 21 )
  • the first fixing part 71 forms an embedded connection with the second fixing part 44 .
  • the cooperation and modifications of the first fixing part 71 and the second fixing part 44 are the same as those of the second embodiment with the same numbers, and will not be repeated here.
  • the driven wheel support portion 75 of the fixing member 7 is provided with a through hole 751, the driven wheel rotating shaft 51 passes through the through hole 751, and the eccentricity of the driven wheel 5
  • the wheel part 53 fits with the eccentric wheel matching part 61 of the swing head rod 6 after passing through the through hole 751 .
  • the axial length of the through hole 751 of the driven wheel support portion 75 is greater than the radius of the eccentric wheel portion 53 and greater than the axial length of the waist-shaped hole 611 of the eccentric wheel matching portion 61 ,
  • the through hole 751 can provide enough space for the eccentric wheel part 53 to rotate eccentrically and the eccentric wheel matching part 61 to move axially.
  • the guide part 62 is opposed to the distal side wall and the proximal side wall of the through hole 751 of the driven wheel support part 75 in the longitudinal direction, so as to maintain the relative relationship between the fixing part 7 and the swing head rod 6 stable positional relationship.
  • a locking member 710 is provided, and the locking member 710 cooperates with the driven wheel 5 in the gear set.
  • the locking member 710 includes a locking part 7101 and The connection part 7102 , the connection part 7102 is connected to the driving wheel support part 74 and/or the driven wheel support part 75 .
  • the locking portion 7101 of the locking member 710 is engaged with the tooth portion 52 of the driven wheel to block the The rotation of the driven wheel 5, when the driving wheel and/or the driven wheel is rotated by external force, the locking part 7101 moves away from the driven wheel tooth portion 52 under the action of the driven wheel tooth portion 52 Direction movement without blocking the rotation of the driven wheel 52.
  • the number of the locking member 710 can be one, two or more, and can only cooperate with one driven wheel 5 , or can cooperate with two driven wheels 5 respectively.
  • the locking member 710 is at least partly elastic, and when the driving wheel 4 and/or the driven wheel 5 are driven to rotate by external force, the locking part 7101 is on the teeth of the driven wheel.
  • the locking part 52 elastically deforms and moves away from the tooth part 52 of the driven wheel.
  • the locking part 52 reconnects with the driven wheel under the action of the elastic restoring force.
  • the teeth 52 mesh.
  • the driven gear tooth portion 52 includes a plurality of driven gear teeth
  • the locking portion 7101 includes two inclined guide surfaces or an arc surface
  • the locking portion 7101 and the driven gear When the driving gear teeth 52 are engaged, the guiding surface or arc surface of the locking portion 7101 at least partially enters between two adjacent driven gear teeth, and the two guiding surfaces are respectively connected to the adjacent two driven gear teeth.
  • the side faces of the driving gear teeth are opposite, or the arc surface is opposite to the side faces of the driven gear teeth.
  • the locking member 76 of the third embodiment and the locking member 7101 of the fourth embodiment can also be provided at the same time, that is, the locking member cooperates with the driving wheel 4 and the driven wheel 5 at the same time, and also Belong to within the scope of protection of the present invention.
  • the connecting portions of the locking elements are all connected to the fixing elements.
  • the fixing part of the locking member can also be connected to other positions, for example, directly connected to the inner surface of the housing, or connected to another component fixed on the housing .

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Abstract

一种摆头机构及医用吻合器,摆头机构包括:主动轮(4),包括主动轮齿部(42);从动轮(5),包括从动轮齿部(52)和第一配合部,从动轮齿部(52)与主动轮齿部(42)相啮合;摆头拉杆(6),包括第二配合部和拉片配合部(63),第二配合部与第一配合部相配合,使得从动轮(5)旋转时,带动摆头拉杆(6)的拉片配合部(63)沿吻合器的轴向运动;摆头拉杆(6),沿吻合器的轴向延伸且连接于摆头拉杆(6)的拉片配合部(63)。摆头机构可以实现吻合器的钉头部(9)相对于吻合器本体(11)的摆动。

Description

摆头机构及医用吻合器 技术领域
本发明涉及医疗器械技术领域,具体涉及一种摆头机构及医用吻合器。
背景技术
现有技术中,医用吻合器包括吻合器本体、活动连接所述吻合器本体的击发把手以及与所述本体配合的钉头部。所述吻合器本体包括击发组件。所述钉头部包括相对设置的钉仓组件和钉砧。在手术过程中,将两段需要吻合起来的组织放置在钉砧和钉仓组件的钉仓之间,调整钉砧和钉仓的距离来逐渐夹紧组织,然后通过击发把手驱动击发组件使得吻合钉在钉砧成型,完成两段组织的吻合连接。
为了适应更多手术场景的需要,需要钉头部可以相对于吻合器本体有更多的角度选择。因此,可以在吻合器本体和钉头部之间设置摆头机构,所述摆头机构包括摆头拉片,摆头拉片的远端连接至钉头部,当驱动摆头拉片沿吻合器的轴向移动时,摆头拉片的远端侧带动钉头部相对于吻合器本体顺时针或逆时针摆动。
现有的摆头机构结构一般比较复杂,并且难以设置摆动的角度,在使用过程中,钉头部还可能会出现不可控的摆动现象,从而造成钉头部摆动角度的不可控,导致吻合器的钉头部无法准确地定位,影响手术效果。
发明内容
针对现有技术中的问题,本发明的目的在于提供一种摆头机构及医用吻合器,可以简单方便地实现吻合器的钉头部相对于吻合器本体的摆动,并且可以通过齿轮配合调整钉头部的摆动角度。
本发明实施例提供一种摆头机构,用于医用吻合器,所述摆头机构包括:
齿轮组,包括主动轮和从动轮,所述主动轮包括主动轮齿部,所述从动轮包括从动轮齿部和第一配合部,所述从动轮齿部与所述主动轮齿部相啮合;
摆头拉杆,包括第二配合部和拉片配合部,所述第二配合部与所述第一配合部相配合,以使得所述从动轮旋转时,带动所述摆头拉杆的拉片配合部沿所述吻合器的轴向运动;
摆头拉片,沿所述吻合器的轴向延伸且连接于所述摆头拉杆的拉片配合部。
在一些实施例中,还包括容纳所述齿轮组的壳体,所述壳体的第一内表面和所述主动轮中的一个设置有支撑部,另一个设置有滑槽,所述支撑部位于所述滑槽中,且所述支撑部可相对于所述滑槽旋转。
在一些实施例中,所述第一配合部位于所述从动轮齿部朝向所述壳体的第一内表面的 一侧。
在一些实施例中,所述支撑部为环形或弧形,所述滑槽为环形或弧形,所述滑槽与所述主动轮齿部同轴设置。
在一些实施例中,还包括容纳所述齿轮组的壳体,所述从动轮还包括第三配合部,所述壳体的内表面设有第四配合部,所述第三配合部与所述第四配合部配合,使得所述从动轮可相对于所述壳体旋转。
在一些实施例中,所述第三配合部和所述第四配合部中的一个包括从动轮旋转轴,另一个包括固定孔,所述从动轮旋转轴至少部分可旋转地位于所述固定孔中。
在一些实施例中,所述第一配合部为偏心轮部,所述第二配合部中开设有第五配合部,所述偏心轮部至少部分进入所述第五配合部中。
在一些实施例中,所述偏心轮部的外轮廓为圆形或圆弧形,所述第五配合部为腰形,所述腰形的两条直边沿所述吻合器的横向延伸。
在一些实施例中,包括两个所述从动轮、两个所述摆头拉杆和两个所述摆头拉片,两个所述摆头拉杆相对于所述吻合器的轴向对称设置,各个所述摆头拉杆分别与一所述摆头拉片相连接,所述主动轮旋转时,两个所述摆头拉杆的运动方向相反。
在一些实施例中,初始状态下,两个所述从动轮的偏心轮部的中心轴分别位于所对应的从动轮旋转轴的外侧,或者,初始状态下,两个所述从动轮的偏心轮部的中心轴分别位于所对应的从动轮旋转轴的内侧。
在一些实施例中,所述拉片配合部为设置于所述第二配合部的内侧的凸起部或凹槽,所述摆头拉片的近端侧设置有与所述凸起部配合的孔或与所述凹槽配合的凸起部。
在一些实施例中,所述凸起部或所述凹槽设置于所述摆头拉杆沿轴向的中心位置。
在一些实施例中,所述第二配合部的内侧面为平行于所述吻合器的轴向的平面。
在一些实施例中,所述从动轮位于所述主动轮的近端。
在一些实施例中,两个所述从动轮的从动轮旋转轴平行于所述主动轮的中心轴,且两个所述从动轮的从动轮旋转轴到所述主动轮的中心轴的距离相等。
在一些实施例中,所述壳体的第一内表面设置有所述吻合器的轴向延伸的引导槽,所述摆头拉杆还包括引导部,所述引导部位于所述引导槽中,且被所述引导槽限定只能沿轴向运动。
在一些实施例中,所述摆头拉杆包括两个所述引导部,在所述吻合器的横向上,两个所述引导部分别连接于所述第二配合部的远端面和近端面的中部。
在一些实施例中,所述主动轮还包括操作部,所述壳体的第二侧表面设置有容置孔,所述操作部穿过所述容置孔而露出于所述壳体之外。
在一些实施例中,还包括:
壳体,包括第一内表面和第二内表面,所述第一内表面与所述第二内表面之间围设成 容置腔体;
固定件,固定设于所述容置腔体,且包括朝向所述第一内表面的第三表面和朝向所述第二内表面的第四表面,所述齿轮组至少部分设于所述第四表面与所述壳体的第二内表面之间,且所述齿轮组可相对于所述固定件旋转。
在一些实施例中,所述固定件朝向所述主动轮的一侧设置有第一固定部,所述主动轮朝向所述固定件的一侧设置有第二固定部,所述第一固定部与所述第二固定部形成嵌设连接,且所述主动轮可相对于所述第一固定部旋转。
在一些实施例中,所述主动轮还包括操作部和主动轮齿部,所述操作部设置于所述主动轮齿部朝向所述壳体的第二内表面的一侧,所述第一固定部设置于所述主动轮齿部朝向所述壳体的第一内表面的一侧;
所述从动轮还包括从动轮齿部,所述从动轮齿部与所述主动轮齿部相啮合,所述第一配合部位于所述从动轮齿部朝向所述第一内表面的一侧;
所述主动轮齿部和所述从动轮齿部位于所述第四表面与所述壳体的第二内表面之间。
在一些实施例中,所述摆头拉杆位于所述固定件的第三表面与所述壳体的第一内表面之间,所述固定件设置有通孔,所述从动轮的第一配合部穿过所述通孔后与所述摆头拉杆的第二配合部配合。
在一些实施例中,所述第一固定部和所述第二固定部分别为同轴且嵌合的第一固定柱和凹槽,或,所述第一固定部和所述第二固定部分别为同轴且嵌合的凹槽和第一固定柱。
在一些实施例中,所述固定件包括主动轮支撑部,所述主动轮支撑部至少部分与所述壳体的第一内表面的至少部分形成嵌设连接;和/或,
所述固定件包括从动轮支撑部,所述从动轮支撑部的至少部分与所述壳体的第一内表面的至少部分形成嵌设连接。
在一些实施例中,所述固定件朝向所述壳体的第一内表面的一侧设置有让位槽,所述壳体与所述让位槽相对的位置设置有套管限位部,所述让位槽和所述套管限位部围合成一沿轴向的第一通道。
在一些实施例中,所述齿轮组包括两个所述从动轮,所述固定件包括两个分别承载所述从动轮的从动轮支撑部,且两个所述从动轮支撑部之间形成一轴向延伸的第二通道。
在一些实施例中,还包括容纳所述齿轮组的壳体,所述壳体包括第一内表面和第二内表面,所述第二内表面设置有至少一个限位件,所述限位件限制所述从动轮支撑部的轴向运动。
在一些实施例中,还包括锁止件,所述锁止件包括锁止部;其中,所述齿轮组不受外力时,所述锁止部与所述齿轮组相啮合,以阻挡所述主动轮和/或所述从动轮的旋转,所述齿轮组受外力驱动发生旋转时,所述锁止部在所述齿轮组的作用下向远离所述齿轮组的方向运动,而不阻挡所述齿轮组的旋转。
在一些实施例中,所述锁止件至少部分为弹性的。
在一些实施例中,所述主动轮齿部包括多个主动轮齿,所述锁止部包括两个倾斜的引导面或所述锁止部包括圆弧面,所述锁止部与所述主动轮齿部相啮合时,所述锁止部的引导面或圆弧面至少部分进入相邻的两个主动轮齿之间;
或者,所述从动轮齿部包括多个从动轮齿,所述锁止部包括两个倾斜的引导面或所述锁止部包括圆弧面,所述锁止部与所述从动轮齿部相啮合时,所述锁止部的引导面或圆弧面至少部分进入相邻的两个从动轮齿之间,且两个所述引导面分别与相邻的两个从动轮齿的侧面相对。
在一些实施例中,所述锁止件为杆状,且所述锁止件平行于所述主动轮和/或所述从动轮的中心轴。
在一些实施例中,还包括壳体和固定件,所述壳体包括容纳所述齿轮组、所述固定件和所述摆头拉杆的容置腔体,所述齿轮组通过所述固定件固定于所述壳体;
所述锁止件还包括连接部,至少部分所述锁止部通过所述连接部连接于所述固定件。
在一些实施例中,所述固定件包括主动轮支撑部和从动轮支撑部,所述主动轮支撑部位于所述主动轮与所述壳体的第一内表面之间,所述从动轮支撑部位于所述从动轮与所述壳体的第一内表面之间,所述锁止件的连接部连接于所述主动轮支撑部,和/或,所述锁止件的连接部连接于所述从动轮支撑部。
在一些实施例中,包括两个所述锁止件,所述齿轮组包括两个所述从动轮;
两个所述锁止件分别设置于两个所述从动轮支撑部与所述主动轮支撑部之间,各个所述锁止件的连接部通过第一连接臂连接于所述主动轮支撑部,并通过第二连接臂连接于一所述从动轮支撑部。
在一些实施例中,所述第一连接臂垂直于所述第二连接臂。
本发明实施例还提供一种医用吻合器,包括上述的摆头机构。
本发明所提供的摆头机构及医用吻合器具有如下优点:
通过采用本发明,在主动轮被驱动而旋转时,主动轮驱动从动轮旋转,通过从动轮与摆头拉杆的配合结构将从动轮的旋转运动转换为摆头拉杆的轴向运动,进而使得摆头拉杆带动摆头拉片沿轴向运动,从而简单方便地实现吻合器的钉头部相对于吻合器本体的摆动,并且通过控制主动轮的转动方向和转动角度,可以灵活地调整钉头部的摆动方向和摆动角度。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述,本发明的其它特征、目的和优点将会变得更明显。
图1是本发明第一实施例的吻合器的结构示意图;
图2是本发明第一实施例的钉头部与摆头拉片配合的结构示意图;
图3是本发明第一实施例的摆头机构与套管配合的结构示意图;
图4是本发明第一实施例的摆头机构的结构示意图;
图5是本发明第一实施例的摆头机构的俯视图;
图6是图5中A1-A1方向的剖视图;
图7是本发明第一实施例的第二壳体的结构示意图;
图8和图9是本发明第一实施例的去除第二壳体后的摆头机构的爆炸图;
图10是本发明第一实施例的第一壳体的结构示意图;
图11是本发明第一实施例的摆头拉杆和摆头拉片配合的结构示意图;
图12是本发明第一实施例的摆头拉杆和从动轮配合的爆炸图;
图13和图14是本发明第一实施例的摆头机构控制钉头部沿R1方向摆动时的示意图;
图15和图16是本发明第一实施例的摆头机构控制钉头部沿R2方向摆动时的示意图;
图17是本发明第二实施例的省略第二壳体后摆头机构与吻合器本体配合的结构示意图;
图18是本发明第二实施例的省略壳体后摆头机构与吻合器本体配合的结构示意图;
图19是本发明第二实施例的省略壳体后的摆头机构的结构示意图;
图20是本发明第二实施例的省略壳体后的摆头机构的主视图;
图21是本发明第二实施例的齿轮组的结构示意图;
图22是本发明第二实施例的固定件的结构示意图;
图23是本发明第二实施例的齿轮组与固定件配合的结构示意图;
图24是本发明第二实施例的固定件与摆头拉杆配合的结构示意图;
图25是本发明第二实施例的第二壳体的结构示意图;
图26是本发明第二实施例的固定件与第二壳体配合的结构示意图;
图27是本发明第二实施例的第一壳体的结构示意图;
图28是本发明第二实施例的固定件与第一壳体配合的结构示意图;
图29是本发明第三实施例的医用吻合器的俯视图;
图30是本发明第三实施例的省略第二壳体后摆头机构与吻合器本体配合的结构示意图;
图31是本发明第三实施例的省略第一壳体后摆头机构与吻合器本体配合的结构示意图;
图32是本发明第三实施例的省略壳体后摆头机构的结构示意图;
图33是本发明第三实施例的省略壳体后的摆头机构的结构示意图;
图34是本发明第三实施例的省略壳体后的摆头机构的主视图;
图35是本发明第三实施例的省略壳体后的摆头机构的俯视图;
图36和图37是本发明第三实施例的固定件的结构示意图;
图38是本发明第三实施例的固定件的俯视图;
图39是图38中M处放大图;
图40是本发明第三实施例的固定件与第二壳体配合的结构示意图;
图41是本发明第三实施例的第一壳体的结构示意图;
图42是本发明第三实施例的固定件与第一壳体配合的结构示意图;
图43是本发明第三实施例的固定件与主动轮配合的结构示意图;
图44是本发明第三实施例的固定件与摆头拉杆配合的结构示意图;
图45是本发明第四实施例的固定件与齿轮组配合的结构示意图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而,示例实施方式能够以多种形式实施,且不应被理解为限于在此阐述的实施方式;相反,提供这些实施方式使得本发明将全面和完整,并将示例实施方式的构思全面地传达给本领域的技术人员。在图中相同的附图标记表示相同或类似的结构,因而将省略对它们的重复描述。
本发明提供了一种摆头机构和包括该摆头机构的医用吻合器,所述医用吻合器包括钉头部、吻合器本体和设置于所述钉头部和所述吻合器本体之间的摆头机构。所述摆头机构包括主动轮、从动轮、摆头拉杆和摆头拉片,所述主动轮包括主动轮齿部,所述从动轮包括从动轮齿部和第一配合部,所述从动轮齿部与所述主动轮齿部相啮合。因此,在操作者控制主动轮旋转时,主动轮可以驱动所述从动轮旋转。
所述摆头拉杆包括第二配合部和拉片配合部,所述摆头拉片沿所述吻合器的轴向延伸且连接于所述摆头拉杆的拉片配合部。所述第二配合部与所述第一配合部相配合,以使得所述从动轮旋转时,带动所述摆头拉杆的拉片配合部沿所述吻合器的轴向运动,将从动轮的旋转运动转换为摆头拉杆的轴向运动,并且通过摆头拉杆带动摆头拉片沿轴向运动,从而可以简单方便地实现吻合器的钉头部相对于吻合器本体的摆动。进一步地,本发明通过控制主动轮旋转的方向和角度,可以灵活地调整钉头部的摆动方向和摆动角度。
在本发明中,从动轮指的是设置有与摆头拉杆配合的第一配合部的齿轮,主动轮指的是与从动轮啮合配合的齿轮,但并不特指必须所述主动轮驱动从动轮旋转。在不同的实施例中,可以是所述主动轮旋转而驱动所述从动轮旋转,也可以是所述从动轮旋转而驱动所述主动轮旋转。
下面结合附图详细介绍本发明各个具体实施例的摆头机构的结构,可以理解的是,各个具体实施例不作为本发明的保护范围的限制。
如图1~2所示,在本发明第一实施例中,提供了一种摆头机构和包括该摆头机构的医 用吻合器,所述医用吻合器包括钉头部9、吻合器本体11、枢转地连接于所述吻合器本体11的击发把手12和设置于所述钉头部9和所述吻合器本体11之间的摆头机构。所述吻合器本体11包括本体壳体、固定把手112和套管111,所述套管111的远端侧连接于所述钉头部9。所述钉头部9包括相对设置的钉砧91和钉仓组件92以及位于所述钉砧91和钉仓组件92的近端侧的连接件93。所述摆头机构包括两个摆头拉片8,所述摆头拉片8至少部分位于所述套管111的内部,图2中省去了套管111以示出所述摆头拉片8与钉头部9的配合。所述摆头拉片8的远端侧连接于所述连接件93。通过所述摆头拉片8的轴向运动可以控制所述钉头部9相对于吻合器的轴心S0进行横向摆动。具体地,在图2的视角中,位于上方的摆头拉片8向近端侧方向运动,位于下方的摆头拉片8向远端侧方向运动时,实现所述钉头部9沿R1方向摆动。位于上方的摆头拉片8向远端侧方向运动,位于下方的摆头拉片8向近端侧方向运动时,实现所述钉头部9沿R2方向摆动。
在本发明中,远端侧和近端侧是相对于操作者来说的,距离操作者较近的一端为近端侧,距离操作者较远的一端,即更靠近手术位置的一端为远端侧,沿所述吻合器的轴心的方向为轴向,即从吻合器的远端侧到近端侧的方向,或从吻合器的近端侧到远端侧的方向。例如,在图2的视角中,所述钉头部9的远端侧为左边一侧,近端侧为右边一侧。S1方向即为从吻合器的远端侧向近端侧的方向。定义S1方向或与S1方向相反的方向为吻合器的轴向。定义图2中S2方向为吻合器的横向,即宽度方向。定义图6中的S3方向为吻合器的纵向,即高度方向。对于一个部件来说,内侧和外侧是相对于吻合器的轴心来说的,靠近轴心的一侧为内侧,远离轴心的一侧为外侧。下面为了描述方便,以图中的视角来描述“上”、“下”,但这些描述不应作为本发明的限定。在不同的实施例中,“上”和“下”的相对位置关系可以进行互换。
如图3~图6所示,所述摆头机构还包括壳体、主动轮4和从动轮5,所述主动轮4和所述从动轮5形成齿轮组。所述主动轮4和所述从动轮5被容纳于所述壳体的内部的容置腔体。所述摆头拉杆6也位于所述容置腔体之内。在图6的视角中,所述壳体包括位于下方的第一壳体3和位于上方的第二壳体2。所述第二壳体2和所述第一壳体3的内部共同限定一个容纳部分套管111的套管通道20。所述第一壳体3的内表面为所述壳体的第一内表面,所述第二壳体2的内表面为所述壳体的第二内表面。所述主动轮4包括操作部和主动轮齿部42,所述主动轮齿部42的侧壁至少部分设置有第一齿面。在该实施例中,所述操作部为便于操作者手动操作的旋钮41。在另一实施例中,也可以是所述从动轮5包括一个操作部,通过手动操作从动轮5驱动主动轮4旋转。所述从动轮5包括从动轮齿部52,所述从动轮齿部52的侧壁至少部分设置有第二齿面,所述第一齿面与所述第二齿面相啮合。因此,在操作者通过旋钮41控制主动轮4旋转时,通过所述第一齿面和所述第二齿面的啮合,可以驱动所述从动轮5旋转。在该实施例中,设置有两个所述从动轮5,两个所述从动轮5位于所述主动轮4的近端侧。两个所述从动轮5相对于所述吻合器的轴 心对称设置,且两个所述从动轮5的中心轴与所述主动轮4的中心轴平行,两个所述从动轮5的中心轴到所述主动轮4的中心轴的距离相等。所述第一壳体3和所述第二壳体2围合成的容置腔体的形状与所述齿轮组的形状相适应。
如图7~10所示,所述从动轮5的从动轮齿部52朝向所述第一壳体3的一侧还设置有第一配合部,在该实施例中,所述第一配合部为偏心轮部53,所述偏心轮部53的外轮廓为圆形或圆弧形。在其他的实施方式中,所述偏心轮部53的外轮廓也可以为其他形状,例如三角形或其他多边形等。所述摆头机构还包括容纳于所述壳体中的摆头拉杆6。在该实施例中,包括与所述从动轮5一一对应的两个摆头拉杆6,两个所述摆头拉杆6相对于所述吻合器的轴向对称设置,各个所述摆头拉杆6分别与一所述摆头拉片8相连接。所述主动轮4旋转时,两个所述摆头拉杆6的运动方向相反。所述摆头拉杆6包括第二配合部和拉片配合部63,所述摆头拉杆6的拉片配合部63与所对应的摆头拉片8的近端侧相连接。在该实施例中,所述第二配合部为偏心轮配合部61,与所述偏心轮部53相配合,以使得所述从动轮5旋转时,带动所述摆头拉杆6的拉片配合部63沿所述吻合器的轴向运动,将从动轮5的旋转运动转换为摆头拉杆6的轴向运动。在操作者通过旋钮41操作主动轮4旋转时,主动轮4通过第一齿面和第二齿面的啮合驱动从动轮5旋转,从动轮5的旋转带动摆头拉杆6沿吻合器的轴向运动,由此可以通过摆头拉杆6带动摆头拉片8沿轴向运动,从而可以简单方便地实现吻合器的钉头部9相对于吻合器本体11的摆动。并且本发明通过控制主动轮4旋转的方向和角度,可以灵活地调整钉头部9的摆动方向和摆动角度。
如图7~10所示,所述第二壳体2的表面设置有容纳孔21,所述旋钮41穿过所述容纳孔21而露出于所述第二壳体2之外。所述第一壳体3的内表面设置有突出于所述第一内表面的支撑部31,所述主动轮4朝向所述第一壳体3的内表面的一侧设置有滑槽43,所述支撑部31至少部分位于所述滑槽43中,且所述主动轮4可相对于所述支撑部31旋转。如图9和图10所示,所述支撑部31为弧形支撑部31,所述滑槽43为环形滑槽43,所述弧形支撑部31与所述环形滑槽43同轴设置且尺寸相匹配。所述滑槽43与所述主动轮齿部42同轴设置,且所述滑槽43的直径小于所述主动轮齿部42的外径。通过所述支撑部31和所述滑槽43的配合,可以保证所述主动轮4的中心轴在吻合器的轴向和横向上均不会发生位移。在另一种可替代的实施方式中,所述支撑部也可以为环形支撑部,所述环形支撑部与所述环形滑槽同轴设置且尺寸相匹配。在再一种可替代的实施方式中,所述支撑部为弧形支撑部,所述滑槽也可以为弧形滑槽,且所述滑槽的弧长大于所述支撑部的弧长,使得所述支撑部在所述滑槽中可以有周向的旋转空间。在又一种可替代的实施方式中,也可以在所述第一壳体3的内表面设置有滑槽,在所述主动轮4朝向所述第一壳体3的内表面的一侧设置有支撑部,所述支撑部位于所述滑槽中,且所述支撑部可相对于所述滑槽旋转,以使得所述主动轮4可以相对于所述第一壳体3旋转。
如图7~10所示,在该实施例中,所述从动轮5还包括从动轮旋转轴51,所述第二壳体2的内表面和所述第一壳体3的内表面分别设置有第二固定孔22和第一固定孔32,所述从动轮旋转轴51的第一端511和第二端512分别进入所述第二固定孔22和所述第一固定孔32中。所述从动轮旋转轴51穿设于所述从动轮齿部52和所述偏心轮部53中,且所述从动轮齿部52和所述偏心轮部53可绕所述从动轮旋转轴51旋转。此处所述从动轮齿部52和所述偏心轮部53可绕所述从动轮旋转轴51旋转可以是所述从动轮旋转轴51不可旋转地固定于所述第二固定孔22和所述第一固定孔32,所述从动轮齿部52和所述偏心轮部53可相对于所述从动轮旋转轴51旋转,也可以是所述从动轮旋转轴51可旋转地嵌设于所述第二固定孔22和所述第一固定孔32,所述主动轮齿部42和所述偏心轮部53不可旋转地套设于所述从动轮旋转轴51,所述主动轮齿部42和所述偏心轮部53可以与所述从动轮旋转轴51一起绕所述从动轮旋转轴51的轴心旋转。
如图9和图10所示,所述壳体的第一内表面设置有沿所述吻合器的轴向延伸的引导槽33,所述摆头拉杆6还包括引导部62,所述引导部62位于所述引导槽33中,且被所述引导槽33限定只能有轴向运动,在所述主动轮4旋转时,保证所述摆头拉杆6只会有轴向运动,而不会有横向偏摆。具体地,在该实施例中,所述摆头拉杆6包括两个所述引导部62,两个所述引导部62分别位于所述偏心轮配合部61的远端侧和近端侧,所述引导部62为沿所述吻合器的轴向延伸的条状。
如图11和图12所示,所述从动轮旋转轴51穿过所述从动轮齿部52的中心。但是所述偏心轮部53相对于所述从动轮旋转轴51偏心设置,即所述从动轮旋转轴51的中心与所述偏心轮部53的中心轴O1有第一距离d1(如图13所示)。所述摆头拉杆6的偏心轮配合部61中开设有第五配合部,所述第五配合部为配合孔,所述偏心轮部53至少部分进入所述配合孔中。在另一可替代的实施方式中,所述摆头拉杆6的第五配合部也可以为配合槽,所述偏心轮部53至少部分进入所述配合槽中,所述偏心轮部53与所述配合槽或配合孔配合以驱动所述摆头拉杆6沿轴向运动。
如图11和图12所示,所述拉片配合部63为设置于所述偏心轮配合部61的内侧的凸起部,所述摆头拉片8的近端侧设置有与所述凸起部配合的孔,所述凸起部嵌设在所述摆头拉片8的近端侧的孔中。所述凸起部的各个侧面优选为直角面,保证所述凸起部与所述摆头拉片8配合的稳定性,避免两者意外滑脱。优选地,所述凸起部设置于所述摆头拉杆6沿轴向的中心位置,即所述凸起部的中心到所述摆头拉杆6的远端的距离等于所述凸起部的中心到所述摆头拉杆6的近端的距离,所述摆头拉杆6在拉动摆头拉片8轴向移动时,进一步避免所述摆头拉杆6受外力而发生横向偏摆。在另一种可替代的实施方式中,所述拉片配合部63也可以为设置于所述偏心轮配合部61的内侧的凹槽,所述摆头拉片8的近端侧设置有与所述凹槽配合的凸起部,所述凸起部嵌设于所述凹槽中,并且所述凹槽优选设置于所述摆头拉杆6沿轴向的中心位置。在该实施例中,所述偏心轮配合部61的内侧 面为平行于所述吻合器的轴向的平面,可以更好地适应所述摆头拉片8的片状结构。
如图13所示,在所述吻合器的横向上,两个所述引导部62分别连接于所述偏心轮配合部61的远端面和近端面的中部,使得所述引导槽33(示于图3)对所述引导部62的限位作用可以更平均地作用于所述摆头拉杆6的各个位置,保持所述摆头拉杆6在运动时不会因为所述偏心轮部53的旋转运动而发生横向偏摆。所述偏心轮配合部61的配合孔为包括两条弧形边和两条直边的腰形孔611,所述弧形边的半径基本等于所述偏心轮部53的半径,所述腰形孔611的两条直边沿所述吻合器的横向延伸。在另一可替代的实施方式中,所述配合孔的形状也可以不同于图13中示出的腰形形状,只要能够实现在偏心轮部53旋转时,在偏心轮部53的驱动下,推动偏心轮配合部61沿轴向运动即可。
图13示出的是初始状态下所述主动轮4、所述从动轮5和所述摆头拉杆6的配合结构。初始状态下,两个所述从动轮5的偏心轮部53的中心轴O1均位于所对应的从动轮旋转轴51的外侧。由此,在所述主动轮4驱动所述从动轮5旋转时,两个所述从动轮5可以驱动两个所述摆头拉杆6向相反的方向运动。在另一种可替代的实施方式中,初始状态下,两个所述从动轮5的偏心轮部53的中心轴也可以均位于所对应的从动轮旋转轴51的内侧。
如图13所示,在初始状态下,操作主动轮4沿R3方向旋转时,主动轮4驱动从动轮5沿R4方向旋转,然后进入到图14中的状态。图14示出的是在图13的状态下,主动轮4沿R3方向旋转15°后的状态。图14中示出的上方的摆头拉杆6相比于图13中沿W1方向运动,即向远端侧方向运动,下方的摆头拉杆6相比于图13中沿W2方向运动,即向近端侧方向运动,使得钉头部9可以沿如图2所示的R1方向摆动。
如图15所示,在初始状态下,操作主动轮4沿R5方向旋转时,主动轮4驱动从动轮5沿R6方向旋转,进入到图16中的状态。图16示出的是在图15的状态下,主动轮4沿R5方向旋转30°后的状态。图16中示出的上方的摆头拉杆6相比于图15中沿W3方向运动,即向近端侧方向运动,下方的摆头拉杆6相比于图15中沿W4方向运动,即向远端侧方向运动,使得钉头部9可以沿图2中所示的R2方向摆动。比较图14和图16可以看出,在主动轮4旋转方向不同时,可以实现钉头部9的旋转方向不同。并且在主动轮4旋转角度不同时,摆头拉杆6的移动位移不同,使得钉头部9的摆动角度也不同。主动轮4旋转角度越大,摆头拉杆6的移动位移越大,钉头部9的摆动角度也就越大,由此可以灵活地控制钉头部9的摆动方向和摆动角度。
图17~28示出了本发明第二实施例的摆头机构的结构。该第二实施例与上述第一实施例的主要区别在于还包括固定件,且齿轮组与壳体的配合方式不同。该实施例中吻合器的其他部分结构与第一实施例相同,且齿轮组驱动摆头拉片的原理相同,因此下文中一并参照图1、图2、图13~16和图17~28进行介绍。
如图17~20所示,所述摆头机构包括壳体、齿轮组、摆头拉杆6、固定件7和摆头拉片8。所述齿轮组、所述摆头拉杆6和所述固定件7均容纳于所述壳体的内部的容置腔体中。所述齿轮组包括主动轮4和从动轮5,所述主动轮4包括操作部和主动轮齿部42。在该实施例中,所述操作部为至少部分露出于所述第二壳体2的外部的旋钮41。在另一实施例中,也可以是所述从动轮5包括一个操作部,通过手动操作从动轮5驱动主动轮4旋转。所述从动轮5包括从动轮齿部52、第一配合部和从动轮旋转轴51,所述从动轮旋转轴51穿过所述从动轮齿部52和所述第一配合部。所述摆头拉杆6包括第二配合部和拉片配合部63,所述拉片配合部63连接于所述摆头拉片8的近端侧,所述第二配合部与所述第一配合部相配合。
在该实施例中,对应于两个摆头拉片8,设置有两个摆头拉杆6,两个所述摆头拉杆6相对于所述吻合器的轴向对称设置。所述主动轮4旋转时,两个所述摆头拉杆6的运动方向相反。并且对应地设置有两个所述从动轮5,两个所述从动轮5位于所述主动轮4的近端侧。两个所述从动轮5相对于所述吻合器的轴心对称设置,且两个所述从动轮5的中心轴与所述主动轮4的中心轴平行,两个所述从动轮5的中心轴到所述主动轮4的中心轴的距离相等。所述第一壳体3和所述第二壳体2围合成的容置腔体的形状与所述齿轮组的形状相适应。
在操作者控制主动轮4旋转时,通过所述主动轮齿部42和从动轮齿部52处的齿轮啮合,可以驱动所述从动轮5旋转。通过所述第一配合部和所述第二配合部的配合,将所述从动轮5的旋转运动转换为摆头拉杆6的轴向运动,并且通过摆头拉杆6带动摆头拉片8沿轴向运动,从而可以简单方便地实现吻合器的钉头部9(示于图1)相对于吻合器本体11(示于图1)的摆动,通过控制主动轮4旋转的角度,可以灵活地调整钉头部9的摆动方向和摆动角度。
所述壳体包括第一内表面和第二内表面,所述第一内表面和所述第二内表面围设一容置腔体。如图1和图17所示,在该实施例中,所述壳体分为位于下方的第一壳体3和位于上方的第二壳体2,所述第一壳体3和所述第二壳体2中限定用于通过所述套管11的套管通道20。所述第一内表面为所述第一壳体3的内表面,所述第二内表面为所述第二壳体2的内表面。所述固定件7位于所述齿轮组与所述第一内表面之间,所述齿轮组通过所述固定件7固定于所述第一内表面,且所述主动轮4和所述从动轮5可相对于所述固定件7旋转,有利于保持摆头机构的结构稳定性,避免在使用过程中因为齿轮组的不稳定而导致钉头部9的位置不稳定,提升手术效果。如图17和图18所示,所述固定件7包括朝向所述第一内表面的第三表面和朝向所述第二内表面的第四表面。所述齿轮组至少部分设置于所述固定件7的第四表面和所述第二内表面之间。所述摆头拉杆6设于所述固定件7的第三表面与所述第一内表面之间,所述固定件7、所述摆头拉杆6在高度方向上相对于所述壳体固定。
如图19~21所示,所述第一配合部为偏心轮部53,所述第二配合部为偏心轮配合部61,与所述偏心轮部53相配合,以使得所述从动轮5旋转时,带动所述摆头拉杆6的拉片配合部63沿所述吻合器的轴向运动,将从动轮5的旋转运动转换为摆头拉杆6的轴向运动。在该实施例中,所述偏心轮部53的外轮廓为圆形或圆弧形。在其他的实施方式中,所述偏心轮部53的外轮廓也可以为其他形状,例如三角形或其他多边形等。所述从动轮旋转轴51穿过所述从动轮齿部52的中心。但是所述偏心轮部53相对于所述从动轮旋转轴51偏心设置,即所述从动轮旋转轴51的中心与所述偏心轮部53的中心轴O1有第一距离(参照图13所示的第一距离d1)。所述摆头拉杆6的偏心轮配合部61中开设有第三配合孔,该第三配合孔为腰形孔611,所述偏心轮部53至少部分进入所述腰形孔611中。在其他实施方式中,所述第三配合孔也可以为其他形状。在另一可替代的实施方式中,所述摆头拉杆6的偏心轮配合部61中也可以开设配合槽,所述偏心轮部53至少部分进入所述配合槽中。
如图17和图19所示,所述第一壳体3的内表面设置有沿所述吻合器的轴向延伸的引导槽33,所述引导槽33,所述摆头拉杆6还包括引导部62,所述引导部62的位置设置以及所述引导部62和所述引导槽33的配合与第一实施例相同,此处不予赘述。如图19所示,所述拉片配合部63为设置于所述偏心轮配合部61的内侧的凸起部,所述摆头拉片8的近端侧设置有与所述凸起部配合的孔,所述凸起部嵌设在所述摆头拉片8的近端侧的孔中。所述拉片配合部63与所述摆头拉片8的结构配合以及变形例与第一实施例相同,此处不予赘述。
该第二实施例中,由摆头机构驱动钉头部相对于吻合器本体向R1或R2方向摆动的工作原理可以参见第一实施例中结合图13~16的工作原理描述,此处不予赘述。
下面结合图17、图21、图22~28具体说明该第二实施例的固定件7与其他各个部件的结构关系。如图17和图22所示,所述固定件7包括主动轮支撑部74和两个从动轮支撑部75。所述主动轮支撑部74位于所述主动轮4与所述壳体的第一内表面之间,所述从动轮支撑部75位于所述从动轮5与所述壳体的第一内表面之间。所述摆头拉杆6位于所述从动轮支撑部75与所述第一内表面之间。所述主动轮支撑部74朝向所述壳体的第一内表面的一侧设置有让位槽741。如图27和图28所示,所述第一内表面与所述让位槽741对应的位置设置有套管限位部35,所述让位槽741和所述套管限位部35围合成一轴向延伸的第一通道30,套设于所述摆头拉片8外部的套管11穿过所述第一通道30。所述让位槽741的表面优选为圆弧面,且所述套管限位部35的表面也优选为圆弧面,由此,所述第一通道30为围合成的圆柱形通道,从而与圆柱形的所述套管11的外侧面形成更好的配合,也可以对所述套管11起到一个良好的支撑。如图22所示,两个所述从动轮支撑部75之间形成一轴向延伸的第二通道79,从而为所述套管11的近端提供穿过的第二通道79。
如图22和图23所示,所述固定件7的从动轮支撑部75设置有通孔751,所述从动轮旋转轴51穿过所述通孔751,且所述从动轮5的偏心轮部53穿过所述通孔751后与所述摆头拉杆6的偏心轮配合部61相配合。因此,在该实施例中,所述主动轮4的主动轮齿部42和所述从动轮5的从动轮齿部52设置于所述固定件7的第四表面和所述壳体的第二内表面之间,而由于所述摆头拉杆6位于所述固定件7的第三表面和所述壳体的第一内表面之间,所述偏心轮部53穿过所固定件7的通孔751后与所述摆头拉杆6相配合。如图23和图24所示,所述从动轮支撑部75的通孔751的轴向长度大于所述偏心轮部53的半径,且大于所述偏心轮配合部61的腰形孔611的轴向长度,在所述偏心轮部53旋转时,所述通孔751可以为所述偏心轮部53的偏心旋转以及所述偏心轮配合部61的轴向运动提供足够的让位空间。所述引导部62与所述从动轮支撑部75的通孔751的远端侧壁和近端侧壁在高度方向上相抵持,以保持所述固定件7与所述摆头拉杆6之间相对稳定的位置关系。
如图21和图23所示,所述主动轮支撑部74朝向所述主动轮4的一侧设置有第一固定部71,所述主动轮4朝向所述固定件7的一侧设置有第二固定部44,所述第一固定部71与所述第二固定部44形成嵌设连接。在该实施例中,所述第一固定部71为设置于所述主动轮支撑部74朝向所述主动轮4突出的第一固定柱,所述第二固定部44为开设于朝向所述固定件7的一侧的圆柱形凹槽,所述凹槽与所述主动轮4同轴设置,所述第一固定柱至少部分进入所述凹槽中,且使得所述主动轮4可相对于所述第一固定部71旋转。在另一种可替代的实施方式中,也可以所述第一固定部为设置于所述主动轮支撑部74朝向所述主动轮4的一侧的凹槽,所述第二固定部为设置于所述主动轮4朝向所述固定件7突出的第一固定柱,所述第一固定柱与所述主动轮4同轴设置,所述第一固定柱至少部分进入所述凹槽中。
如图25和图27所示,所述第一壳体3的内表面和所述第二壳体2的内表面分别设置有第一固定孔32和第二固定孔22,所述从动轮旋转轴51的第一端511和第二端512分别进入所述第一固定孔32和所述第二固定孔22中,所述从动轮5可绕所述从动轮旋转轴51旋转。所述从动轮旋转轴51与从动轮5以及壳体配合的结构可参见第一实施例的对应部分,此处不予赘述。图25和图27中标注的套管通道20均为套管通道的一部分,第一壳体2和第二壳体3组合后,两部分组合成一个完整的套管通道20。
如图25和图26所示,所述第二壳体2的表面设置有容纳孔21,所述旋钮41穿过所述容纳孔21而露出于所述第二壳体2的外部。所述固定件7至少部分进入所述第二壳体2的容置腔中。所述第二壳体2的内表面设置有至少一个限位件23,所述限位件23分布于所述从动轮支撑部75的外侧,且所述限位件23对所述从动轮支撑部75的轴向运动进行限制。
如图24、27和图28所示,所述主动轮支撑部74朝向所述壳体的第一内表面的一侧 设置有第三固定部72,所述壳体的第一内表面设置有第四固定部39,所述第三固定部72与所述第四固定部39形成嵌设连接。在该实施例中,所述第三固定部72为朝向所述壳体的第一内表面突出的第二固定柱,所述第四固定部39为设置于所述第一内表面的第一支撑座,所述第一支撑座的中心开设有第一配合孔,所述第二固定柱至少部分进入所述第一配合孔中。所述第三固定部72与所述第四固定部39形成的是不可相对旋转的连接,例如,所述第三固定部72和所述第四固定部39之间可以是过盈配合。此外,由于所述主动轮支撑部74设置有两个横向排列的第三固定部72,所述第一壳体3设置有两个横向排列的第四固定部39,也可以进一步防止所述第三固定部72与所述第四固定部39发生旋转。在另一种可替代的实施方式中,也可以所述第三固定部72包括第一配合孔,所述第四固定部39为朝向所述主动轮支撑部74突出的固定柱,或者直接在第一内表面设置对应于第二固定柱的固定孔。在优选的实施方式中,所述第三固定部72为非圆形截面,所述第四固定部39为非圆形截面的固定孔,例如为:三角形或者多边形的截面,以防止所述固定件7相对于所述壳体之间的旋转运动。
如图24、27和图28所示,所述从动轮支撑部75朝向所述第一内表面的一侧设置有第五固定部73,所述壳体的第一内表面设置有第六固定部34,所述第五固定部73与所述第六固定部34形成嵌设连接。在该实施例中,所述第五固定部73为朝向所述第一内表面突出的第三固定柱,所述第六固定部34为设置于所述第一内表面的第二支撑座,所述第二支撑座的中心开设有第二配合孔,所述第三固定柱至少部分进入所述第二配合孔中。所述第五固定部73与所述第六固定部34形成的是不可相对旋转的连接,例如,所述第三固定部72和所述第四固定部39之间可以是过盈配合。此外,由于所述固定件7设置有两个横向排列的第五固定部73,所述第一壳体3设置有两个横向排列的第六固定部34,也可以进一步防止所述第五固定部73与所述第六固定部34发生旋转。在另一种可替代的实施方式中,也可以所述第五固定部73包括第二配合孔,所述第六固定部34为朝向所述从动轮支撑部75突出的固定柱,或者直接在第一内表面设置对应于第三固定柱的固定孔。
图29~44示出了本发明第三实施例的摆头机构的结构。该实施例与第一实施例和第二实施例的区别在于:所述摆头机构还包括锁止件。在未受外力旋转时,锁止部与齿轮组中的主动轮齿部和/或从动轮齿部相啮合,以阻挡其旋转,提高钉头部的位置稳定性,避免不可控的摆动。在齿轮组中的主动轮和/或从动轮被外力驱动发生旋转时,锁止部向远离主动轮齿部和/或从动轮齿部的方向运动而不阻挡其旋转,也不会影响摆头机构的功能实现。
如图29~图31所示,所述医用吻合器的组成、所述摆头拉片8对钉头部9的摆动驱动方式与第一实施例类似,可参照上文中结合图1和图2的描述,此处不予赘述。
在该实施例中,所述摆头机构包括壳体,所述壳体包括第一内表面和第二内表面。如 图30和图31所示,所述壳体分为位于下方的第一壳体3和位于上方的第二壳体2,所述第一壳体3和所述第二壳体2中共同限定用于通过所述套管11的第三通道20。图31和图32中标注的第三通道20均为第三通道的一部分,第一壳体2和第二壳体3组合后,两部分组合成一个完整的第三通道20。所述第一内表面为所述第一壳体3的内表面,所述第二内表面为所述第二壳体2的内表面。
如图31和图32所示,所述摆头机构包括壳体、齿轮组、固定件7和摆头拉杆6,容纳于所述第一壳体3和所述第二壳体2围合形成的容置腔体内。所述齿轮组包括主动轮4和从动轮5,所述主动轮4包括操作部和主动轮齿部42。在该实施例中,所述操作部为至少部分露出于所述第二壳体2的外部的旋钮41。在另一实施例中,也可以是所述从动轮5包括一个操作部,通过手动操作从动轮5驱动主动轮4旋转。所述从动轮5包括从动轮齿部52、第一配合部和从动轮旋转轴51,所述从动轮旋转轴51穿过所述从动轮齿部52和所述第一配合部。所述从动轮齿部52与所述主动轮齿部42啮合,使得所述主动轮4旋转时可以驱动所述从动轮5旋转。所述摆头拉杆6包括第二配合部和拉片配合部63,所述拉片配合部63连接于所述摆头拉片8的近端侧,所述第二配合部与所述第一配合部相配合,以使得所述从动轮5旋转时,带动所述摆头拉杆6的拉片配合部63沿所述吻合器的轴向运动,进而带动所述摆头拉片8沿轴向运动。本发明通过主动轮4、从动轮5、摆头拉杆6和摆头拉片8之间的配合,在主动轮4和从动轮5旋转时,可驱动所述摆头拉杆6和所述摆头拉片8的轴向运动,通过控制主动轮4旋转的方向和角度,可以灵活地调整钉头部9的摆动方向和摆动角度。
如图31和图32所示,在该实施例中,对应于两个摆头拉片8,设置有两个摆头拉杆6,两个所述摆头拉杆6相对于所述吻合器的轴向对称设置。所述主动轮4旋转时,两个所述摆头拉杆6的运动方向相反。并且对应地设置有两个所述从动轮5。所述主动轮4和所述从动轮5的位置关系和结构关系与第一实施例类似,此处不予赘述。
如图33和图34所示,所述主动轮齿部42包括多个主动轮齿。所述摆头机构还包括至少一个锁止件76,所述锁止件76包括锁止部761。初始状态下,所述锁止部761与所述主动轮齿部42相啮合而阻挡主动轮4的旋转,提高钉头部9的位置稳定性,避免发生不可控的摆动。在主动轮4的旋钮41被操作而驱动主动轮4旋转时,锁止部761在主动轮齿部42的作用力下向远离主动轮齿部42的方向运动而不阻挡主动轮4的旋转,由此摆头机构仍然可以控制钉头部9的摆动,也就不会影响摆头机构的摆头控制功能的正常实现。
在该实施例中,所述锁止件76至少部分为弹性的。初始状态下,所述锁止部761至少部分嵌入在两个相邻的主动轮齿之间,所述锁止件76没有发生弹性变形或者只有少量的弹性变形。此时如果所述吻合器发生晃动,而导致所述主动轮4有非人为故意的旋转趋势,由于所述主动轮齿施加在所述锁止部761上的力小于使得所述锁止件76发生弹性变 形的力,所述锁止件76仍然保持嵌入在两个相邻的主动轮齿之间,对所述主动轮齿部42的旋转形成阻挡。操作者操作旋钮41旋转时,操作者通过旋钮41施加在主动轮4上的作用力使得所述主动轮4有旋转的趋势,此时所述主动轮齿施加在所述锁止部761上的力大于使得所述锁止件76发生弹性变形的力,所述锁止部761在所述主动轮齿部42的作用力下发生弹性变形而向远离所述主动轮齿部42的方向运动,也就不阻挡所述主动轮4的旋转,此时摆头机构可以实现控制钉头部9摆动。操作者施加在旋钮41上的外力消除时,所述主动轮4停止旋转,所述锁止部761在弹性恢复力的作用下向靠近所述主动轮齿部42的方向运动而重新进入到两个相邻的主动轮齿之间,再次与所述主动轮齿部42啮合,从而将主动轮4保持在当前的位置且不会发生非人为故意的晃动,也就可以很好地将钉头部9保持在当前的摆动角度。
如图32~图35所示,在该实施例中,所述摆头机构还包括一个固定件7。所述固定件7位于所述齿轮组与所述壳体的第一内表面之间,所述齿轮组通过所述固定件7固定于所述壳体的第一内表面,且所述主动轮4和所述从动轮5可相对于所述固定件7旋转,有利于保持摆头机构的结构稳定性,避免在使用过程中因为齿轮组的不稳定而导致钉头部9的位置不稳定,提升手术效果。具体地,所述固定件7包括主动轮支撑部74和两个从动轮支撑部75。所述主动轮支撑部74位于所述主动轮4与所述壳体的第一内表面之间,所述从动轮支撑部75位于所述从动轮5与所述壳体的第一内表面之间。所述摆头拉杆6位于所述从动轮支撑部75与所述壳体的第一内表面之间。所述锁止件76还包括连接部762,所述锁止部761通过所述连接部762连接于所述固定件7。所述固定件7固定于所述第一壳体3。因此,所述锁止件76可以通过所述固定件7固定于所述第一壳体3。所述固定件7与所述齿轮组以及所述第一壳体3的固定方式将在下文中详细描述。
在该实施例中,所述第一配合部为偏心轮部53,所述第二配合部为偏心轮配合部61,与所述偏心轮部53相配合,以使得所述从动轮5旋转时,将从动轮5的旋转运动转换为摆头拉杆6的轴向运动。所述偏心轮部53和所述偏心轮配合部61的配合方式和变形例与第一实施例相同,此处不予赘述。
如图30所示,所述第一壳体3的内表面设置有引导槽33,所述引导槽33沿所述吻合器的轴向延伸,所述摆头拉杆6还包括引导部62。所述引导槽33和所述引导部62的结构和配合关系与第一实施例相同,此处不予赘述。如图32所示,在该实施例中,所述偏心轮配合部61、所述拉片配合部63和所述摆头拉片8的结构、配合以及变形例与第一实施例相同,此处不予赘述。
该第三实施例中,由摆头机构驱动钉头部相对于吻合器本体向R1或R2方向摆动的工作原理可以参见第一实施例中结合图13~16的工作原理描述,此处不予赘述。
下面结合图36~39具体说明本发明的锁止件76和固定件7的结构。
如图36和图37所示,所述锁止件76为杆状,且所述锁止件76平行于所述主动轮4 的中心轴。所述固定件7包括两个所述从动轮支撑部75。两个所述从动轮支撑部75之间形成一轴向延伸的第二通道79,从而为所述套管11的近端提供穿过的第二通道79。所述固定件7上设置有两个所述锁止件76,两个所述锁止件76相对于吻合器的轴心对称设置,并且两个所述锁止件76分别设置于两个所述从动轮支撑部75与所述主动轮支撑部74之间,各个所述锁止件76的连接部762通过第一连接臂77连接于所述主动轮支撑部74,并通过第二连接臂78连接于一所述从动轮支撑部75。通过所述第一连接臂77和所述第二连接臂78将所述锁止件76固定在所述主动轮支撑部74和所述从动轮支撑部75之间,可以提高所述锁止件76与所述固定件7固定的结构稳定性。在一种实施方式中,所述锁止件76、所述第一连接臂77和所述第二连接臂78可以与所述主动轮支撑部74和所述从动轮支撑部75一体成型设置。在另一种实施方式中,所述第一连接臂77和所述第二连接臂78也可以通过焊接的方式连接到所述主动轮支撑部74和所述从动轮支撑部75上。在再一种可替代的实施方式中,所述第一连接臂77和所述第二连接臂78也可以与所述主动轮支撑部74和所述从动轮支撑部75一体成型,而与所述锁止件76的连接部762一体成型设置。
如图38和图39所示,在该实施例中,所述第一连接臂77垂直于所述第二连接臂78。因此,所述锁止件76在受到所述主动轮4齿部的驱动而发生弹性变形时,所述锁止件76的连接部762的末端被所述第一连接臂77和所述第二连接臂78保持在一个稳定的位置,不会发生轴向和横向的移动。
如图39所示,在该实施例中,所述锁止部761包括两个倾斜的引导面7611,所述锁止部761与所述主动轮4齿部相啮合时,所述锁止部761的引导面7611至少部分进入相邻的两个主动轮4齿之间,且两个所述引导面7611分别与相邻的两个主动轮4齿的侧面相对。在操作者操作所述旋钮使得主动轮4旋转时,所述主动轮4齿施加作用力在所述引导面7611上,该作用力被所述引导面7611分解得到一个驱动所述锁止部761远离所述主动轮4的力,并且该引导面7611可以更好地引导所述锁止部761与所述主动轮齿部42的脱离。
在另一可替代的实施方式中,也可以将所述锁止部761朝向所述主动轮齿部42的一侧设置为一个整体的圆弧面,所述锁止部761与所述主动轮齿部42相啮合时,所述主动轮齿部42的圆弧面至少部分进入相邻的两个主动轮4齿之间。在操作者操作所述旋钮使得主动轮4旋转时,所述主动轮4齿施加作用力在所述引导面7611上,该作用力被所述圆弧面分解得到一个驱动所述锁止部761远离所述主动轮4的力,并且该圆弧面可以更好地引导所述锁止部761与所述主动轮齿部42的脱离。
下面结合图40~42具体说明本发明的固定件7与其他各个部件的结构关系。如图40和图41所示,所述第一壳体3的内表面和所述第二壳体2的内表面分别设置有第一固定孔32和第二固定孔22,所述从动轮旋转轴51的第一端511和第二端512分别进入所述 第一固定孔32和所述第二固定孔22中,所述从动轮5可绕所述从动轮旋转轴51旋转。所述从动轮5、所述从动轮旋转轴51和所述壳体的配合方式与第一实施例相同,此处不予赘述。
如图40所示,所述第二壳体2的表面设置有容纳孔21,所述旋钮41穿过所述容纳孔21而露出于所述第二壳体2的外部。所述固定件7至少部分进入所述第二壳体2的容置腔中。所述第二壳体2的内表面设置有至少一个限位件23,所述限位件23分布于所述从动轮支撑部75的外侧,且所述限位件23对所述从动轮支撑部75的轴向运动进行限制。
如图41和图42所示,所述主动轮支撑部74朝向所述第一壳体3的内表面的一侧设置有让位槽741,所述第一壳体3的内表面与所述让位槽741对应的位置设置有套管限位部35,所述让位槽741和所述套管限位部35围合成一轴向延伸的第一通道30,套设于所述摆头拉片8外部的套管11穿过所述第一通道30。所述让位槽741的表面优选为圆弧面,且所述套管限位部35的表面也优选为圆弧面,由此,所述第一通道30为围合成的圆柱形通道,从而与圆柱形的所述套管11的外侧面形成更好的配合,也可以对所述套管11起到一个良好的支撑。
如图40~42所示,所述主动轮支撑部74朝向所述壳体的第一内表面的一侧设置有第三固定部72,所述壳体的第一内表面设置有第四固定部39,所述第三固定部72与所述第四固定部39形成嵌设连接。所述第三固定部72和所述第四固定部39的配合以及变形例与第二实施例相同标号的部位相同,此处不予赘述。
如图40~42所示,所述从动轮支撑部75朝向所述壳体的第一内表面的一侧设置有第五固定部73,所述壳体的第一内表面设置有第六固定部34,所述第五固定部73与所述第六固定部34形成嵌设连接。所述第五固定部73和所述第六固定部34的配合以及变形例与第二实施例相同标号的部位相同,此处不予赘述。
如图42所示,所述主动轮支撑部74朝向所述主动轮4的一侧设置有第一固定部71,所述主动轮4朝向所述固定件7的一侧设置有第二固定部44(可参见图21),所述第一固定部71与所述第二固定部44形成嵌设连接。所述第一固定部71和所述第二固定部44的配合以及变形例与第二实施例相同标号的部位相同,此处不予赘述。
如图33、43~44所示,所述固定件7的从动轮支撑部75设置有通孔751,所述从动轮旋转轴51穿过所述通孔751,且所述从动轮5的偏心轮部53穿过所述通孔751后与所述摆头拉杆6的偏心轮配合部61相配合。如图44所示,所述从动轮支撑部75的通孔751的轴向长度大于所述偏心轮部53的半径,且大于所述偏心轮配合部61的腰形孔611的轴向长度,在所述偏心轮部53旋转时,所述通孔751可以为所述偏心轮部53的偏心旋转以及所述偏心轮配合部61的轴向运动提供足够的让位空间。所述引导部62与所述从动轮支撑部75的通孔751的远端侧壁和近端侧壁在纵向上相抵持,以保持所述固定件7与所述摆头拉杆6之间相对稳定的位置关系。
上述实施例以所述锁止件与所述齿轮组中的主动轮配合为例进行说明。在如图45所示的第四实施例中,设置一锁止件710,所述锁止件710与所述齿轮组中的从动轮5配合,所述锁止件710包括锁止部7101和连接部7102,所述连接部7102连接于所述主动轮支撑部74和/或所述从动轮支撑部75。如图45所示,所述主动轮4和/或所述从动轮5不受外力时,所述锁止件710的锁止部7101与所述从动轮齿部52相啮合,以阻挡所述从动轮5的旋转,所述主动轮和/或所述从动轮受外力驱动发生旋转时,所述锁止部7101在所述从动轮齿部52的作用下向远离所述从动轮齿部52的方向运动,而不阻挡所述从动轮52的旋转。所述锁止件710的数量可以为一个、两个或者多个,可以只与一个从动轮5配合,也可以分别与两个从动轮5配合。
在该实施例中,所述锁止件710至少部分为弹性的,所述主动轮4和/或所述从动轮5受外力驱动发生旋转时,所述锁止部7101在所述从动轮齿部52的作用下发生弹性变形而向远离所述从动轮齿部52的方向运动,所述从动轮5停止旋转时,所述锁止部52在弹性恢复力的作用下重新与所述从动轮齿部52啮合。
在该实施例中,所述从动轮齿部52包括多个从动轮齿,所述锁止部7101包括两个倾斜的引导面或者包括一个圆弧面,所述锁止部7101与所述从动轮齿部52相啮合时,所述锁止部7101的引导面或圆弧面至少部分进入相邻的两个从动轮齿之间,且两个所述引导面分别与相邻的两个从动轮齿的侧面相对,或所述圆弧面与所述从动轮齿的侧面相对。
该实施例的其他部件的结构与第三实施例相同,此处不再赘述。
在再一可替代的实施方式中,也可以同时设置第三实施例的锁止件76和第四实施例的锁止件7101,即锁止件同时与主动轮4以及从动轮5配合,也属于本发明的保护范围之内。
在上述实施例中,所述锁止件的连接部均连接于所述固定件。在其他可替代的实施方式中,所述锁止件的固定件也可以连接于其他位置,例如,直接连接于所述壳体的内表面,或者连接于另一个固定设于壳体上的部件。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。

Claims (36)

  1. 一种摆头机构,其特征在于,用于医用吻合器,所述摆头机构包括:
    齿轮组,包括主动轮和从动轮,所述主动轮包括主动轮齿部,所述从动轮包括从动轮齿部和第一配合部,所述从动轮齿部与所述主动轮齿部相啮合;
    摆头拉杆,包括第二配合部和拉片配合部,所述第二配合部与所述第一配合部相配合,以使得所述从动轮旋转时,带动所述摆头拉杆的拉片配合部沿所述吻合器的轴向运动;
    摆头拉片,沿所述吻合器的轴向延伸且连接于所述摆头拉杆的拉片配合部。
  2. 根据权利要求1所述的摆头机构,其特征在于,还包括容纳所述齿轮组的壳体,所述壳体的第一内表面和所述主动轮中的一个设置有支撑部,另一个设置有滑槽,所述支撑部位于所述滑槽中,且所述支撑部可相对于所述滑槽旋转。
  3. 根据权利要求2所述的摆头机构,其特征在于,所述第一配合部位于所述从动轮齿部朝向所述壳体的第一内表面的一侧。
  4. 根据权利要求2所述的摆头机构,其特征在于,所述支撑部为环形或弧形,所述滑槽为环形或弧形,所述滑槽与所述主动轮齿部同轴设置。
  5. 根据权利要求1所述的摆头机构,其特征在于,还包括容纳所述齿轮组的壳体,所述从动轮还包括第三配合部,所述壳体的内表面设有第四配合部,所述第三配合部与所述第四配合部配合,使得所述从动轮可相对于所述壳体旋转。
  6. 根据权利要求5所述的摆头机构,其特征在于,所述第三配合部和所述第四配合部中的一个包括从动轮旋转轴,另一个包括固定孔,所述从动轮旋转轴至少部分可旋转地位于所述固定孔中。
  7. 根据权利要求5所述的摆头机构,其特征在于,所述第一配合部为偏心轮部,所述第二配合部中开设有第五配合部,所述偏心轮部至少部分进入所述第五配合部中。
  8. 根据权利要求7所述的摆头机构,其特征在于,所述偏心轮部的外轮廓为圆形或圆弧形,所述第五配合部为腰形,所述腰形的两条直边沿所述吻合器的横向延伸。
  9. 根据权利要求7所述的摆头机构,其特征在于,包括两个所述从动轮、两个所述摆头拉杆和两个所述摆头拉片,两个所述摆头拉杆相对于所述吻合器的轴向对称设置,各个所述摆头拉杆分别与一所述摆头拉片相连接,所述主动轮旋转时,两个所述摆头拉杆的运动方向相反。
  10. 根据权利要求9所述的摆头机构,其特征在于,初始状态下,两个所述从动轮的偏心轮部的中心轴分别位于所对应的从动轮旋转轴的外侧,或者,初始状态下,两个所述从动轮的偏心轮部的中心轴分别位于所对应的从动轮旋转轴的内侧。
  11. 根据权利要求9所述的摆头机构,其特征在于,所述拉片配合部为设置于所述第二配合部的内侧的凸起部或凹槽,所述摆头拉片的近端侧设置有与所述凸起部配合的孔或 与所述凹槽配合的凸起部。
  12. 根据权利要求11所述的摆头机构,其特征在于,所述凸起部或所述凹槽设置于所述摆头拉杆沿轴向的中心位置。
  13. 根据权利要求12所述的摆头机构,其特征在于,所述第二配合部的内侧面为平行于所述吻合器的轴向的平面。
  14. 根据权利要求9所述的摆头机构,其特征在于,所述从动轮位于所述主动轮的近端。
  15. 根据权利要求9所述的摆头机构,其特征在于,两个所述从动轮的从动轮旋转轴平行于所述主动轮的中心轴,且两个所述从动轮的从动轮旋转轴到所述主动轮的中心轴的距离相等。
  16. 根据权利要求2所述的摆头机构,其特征在于,所述壳体的第一内表面设置有所述吻合器的轴向延伸的引导槽,所述摆头拉杆还包括引导部,所述引导部位于所述引导槽中,且被所述引导槽限定只能沿轴向运动。
  17. 根据权利要求16所述的摆头机构,其特征在于,所述摆头拉杆包括两个所述引导部,在所述吻合器的横向上,两个所述引导部分别连接于所述第二配合部的远端面和近端面的中部。
  18. 根据权利要求2所述的摆头机构,其特征在于,所述主动轮还包括操作部,所述壳体的第二侧表面设置有容置孔,所述操作部穿过所述容置孔而露出于所述壳体之外。
  19. 根据权利要求1所述的摆头机构,其特征在于,还包括:
    壳体,包括第一内表面和第二内表面,所述第一内表面与所述第二内表面之间围设成容置腔体;
    固定件,固定设于所述容置腔体,且包括朝向所述第一内表面的第三表面和朝向所述第二内表面的第四表面,所述齿轮组至少部分设于所述第四表面与所述壳体的第二内表面之间,且所述齿轮组可相对于所述固定件旋转。
  20. 根据权利要求19所述的摆头机构,其特征在于,所述固定件朝向所述主动轮的一侧设置有第一固定部,所述主动轮朝向所述固定件的一侧设置有第二固定部,所述第一固定部与所述第二固定部形成嵌设连接,且所述主动轮可相对于所述第一固定部旋转。
  21. 根据权利要求20所述的摆头机构,其特征在于,所述主动轮还包括操作部和主动轮齿部,所述操作部设置于所述主动轮齿部朝向所述壳体的第二内表面的一侧,所述第一固定部设置于所述主动轮齿部朝向所述壳体的第一内表面的一侧;
    所述从动轮还包括从动轮齿部,所述从动轮齿部与所述主动轮齿部相啮合,所述第一配合部位于所述从动轮齿部朝向所述第一内表面的一侧;
    所述主动轮齿部和所述从动轮齿部位于所述第四表面与所述壳体的第二内表面之间。
  22. 根据权利要求21所述的摆头机构,其特征在于,所述摆头拉杆位于所述固定件的 第三表面与所述壳体的第一内表面之间,所述固定件设置有通孔,所述从动轮的第一配合部穿过所述通孔后与所述摆头拉杆的第二配合部配合。
  23. 根据权利要求20所述的摆头机构,其特征在于,所述第一固定部和所述第二固定部分别为同轴且嵌合的第一固定柱和凹槽,或,所述第一固定部和所述第二固定部分别为同轴且嵌合的凹槽和第一固定柱。
  24. 根据权利要求19所述的摆头机构,其特征在于,所述固定件包括主动轮支撑部,所述主动轮支撑部至少部分与所述壳体的第一内表面的至少部分形成嵌设连接;和/或,
    所述固定件包括从动轮支撑部,所述从动轮支撑部的至少部分与所述壳体的第一内表面的至少部分形成嵌设连接。
  25. 根据权利要求19所述的摆头机构,其特征在于,所述固定件朝向所述壳体的第一内表面的一侧设置有让位槽,所述壳体与所述让位槽相对的位置设置有套管限位部,所述让位槽和所述套管限位部围合成一沿轴向的第一通道。
  26. 根据权利要求19所述的摆头机构,其特征在于,所述齿轮组包括两个所述从动轮,所述固定件包括两个分别承载所述从动轮的从动轮支撑部,且两个所述从动轮支撑部之间形成一轴向延伸的第二通道。
  27. 根据权利要求1所述的摆头机构,其特征在于,还包括容纳所述齿轮组的壳体,所述壳体包括第一内表面和第二内表面,所述第二内表面设置有至少一个限位件,所述限位件限制所述从动轮支撑部的轴向运动。
  28. 根据权利要求1所述的摆头机构,其特征在于,还包括锁止件,所述锁止件包括锁止部;其中,所述齿轮组不受外力时,所述锁止部与所述齿轮组相啮合,以阻挡所述主动轮和/或所述从动轮的旋转,所述齿轮组受外力驱动发生旋转时,所述锁止部在所述齿轮组的作用下向远离所述齿轮组的方向运动,而不阻挡所述齿轮组的旋转。
  29. 根据权利要求28所述的摆头机构,其特征在于,所述锁止件至少部分为弹性的。
  30. 根据权利要求28所述的摆头机构,其特征在于,所述主动轮齿部包括多个主动轮齿,所述锁止部包括两个倾斜的引导面或所述锁止部包括圆弧面,所述锁止部与所述主动轮齿部相啮合时,所述锁止部的引导面或圆弧面至少部分进入相邻的两个主动轮齿之间;
    或者,所述从动轮齿部包括多个从动轮齿,所述锁止部包括两个倾斜的引导面或所述锁止部包括圆弧面,所述锁止部与所述从动轮齿部相啮合时,所述锁止部的引导面或圆弧面至少部分进入相邻的两个从动轮齿之间,且两个所述引导面分别与相邻的两个从动轮齿的侧面相对。
  31. 根据权利要求28所述的摆头机构,其特征在于,所述锁止件为杆状,且所述锁止件平行于所述主动轮和/或所述从动轮的中心轴。
  32. 根据权利要求28所述的摆头机构,其特征在于,还包括壳体和固定件,所述壳体包括容纳所述齿轮组、所述固定件和所述摆头拉杆的容置腔体,所述齿轮组通过所述固定 件固定于所述壳体;
    所述锁止件还包括连接部,至少部分所述锁止部通过所述连接部连接于所述固定件。
  33. 根据权利要求32所述的摆头机构,其特征在于,所述固定件包括主动轮支撑部和从动轮支撑部,所述主动轮支撑部位于所述主动轮与所述壳体的第一内表面之间,所述从动轮支撑部位于所述从动轮与所述壳体的第一内表面之间,所述锁止件的连接部连接于所述主动轮支撑部,和/或,所述锁止件的连接部连接于所述从动轮支撑部。
  34. 根据权利要求33所述的摆头机构,其特征在于,包括两个所述锁止件,所述齿轮组包括两个所述从动轮,两个所述锁止件分别设置于两个所述从动轮支撑部与所述主动轮支撑部之间,各个所述锁止件的连接部通过第一连接臂连接于所述主动轮支撑部,并通过第二连接臂连接于一所述从动轮支撑部。
  35. 根据权利要求34所述的摆头机构,其特征在于,所述第一连接臂垂直于所述第二连接臂。
  36. 一种医用吻合器,其特征在于,包括权利要求1至35中任一项所述的摆头机构。
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208524935U (zh) * 2017-12-19 2019-02-22 苏州英途康医疗科技有限公司 用于腔镜吻合器的摆头机构及腔镜吻合器
US20190059888A1 (en) * 2017-08-29 2019-02-28 Ethicon Llc Electrically-powered surgical box staplers
CN109480938A (zh) * 2018-11-23 2019-03-19 苏州英途康医疗科技有限公司 钉仓组件及吻合器
CN209032492U (zh) * 2018-07-31 2019-06-28 常州健瑞宝医疗器械有限公司 腔内切割吻合器及其头部变动机构
US20200222051A1 (en) * 2018-05-07 2020-07-16 Covidien Lp Surgical devices including trocar lock and trocar connection indicator
CN213883350U (zh) * 2020-10-27 2021-08-06 无锡贝恩外科器械有限公司 一种腔镜吻合器可视化控制钳头偏摆角度机构
CN216854749U (zh) * 2021-11-23 2022-07-01 天臣国际医疗科技股份有限公司 摆头机构及医用吻合器
CN216854747U (zh) * 2021-11-23 2022-07-01 天臣国际医疗科技股份有限公司 摆头机构及医用吻合器
CN216854748U (zh) * 2021-11-23 2022-07-01 天臣国际医疗科技股份有限公司 摆头机构及医用吻合器

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823066A (en) * 1996-05-13 1998-10-20 Ethicon Endo-Surgery, Inc. Articulation transmission mechanism for surgical instruments
US7111769B2 (en) * 2003-07-09 2006-09-26 Ethicon Endo-Surgery, Inc. Surgical instrument incorporating an articulation mechanism having rotation about the longitudinal axis
US8807414B2 (en) * 2006-10-06 2014-08-19 Covidien Lp System and method for non-contact electronic articulation sensing
EP3097869B1 (en) 2007-09-21 2020-03-11 Covidien LP Surgical device
US9877720B2 (en) 2010-09-24 2018-01-30 Ethicon Llc Control features for articulating surgical device
KR101259701B1 (ko) * 2011-03-24 2013-05-06 정창욱 굽은 샤프트를 갖는 최소 침습 수술 기구
US9693774B2 (en) 2014-06-25 2017-07-04 Ethicon Llc Pivotable articulation joint unlocking feature for surgical stapler
ES2894284T3 (es) 2014-12-30 2022-02-14 Touchstone International Medical Science Co Ltd Aparato de sutura y corte para cirugía endoscópica
US11213293B2 (en) 2016-02-09 2022-01-04 Cilag Gmbh International Articulatable surgical instruments with single articulation link arrangements
US10617413B2 (en) 2016-04-01 2020-04-14 Ethicon Llc Closure system arrangements for surgical cutting and stapling devices with separate and distinct firing shafts
JP6701365B2 (ja) * 2016-10-07 2020-05-27 オリンパス株式会社 外科処置具
WO2018070020A1 (ja) * 2016-10-13 2018-04-19 オリンパス株式会社 外科処置具
JP7106540B2 (ja) 2016-12-21 2022-07-26 エシコン エルエルシー 非対称シャフト機構を有する関節運動可能な外科用エンドエフェクタ
US11751867B2 (en) * 2017-12-21 2023-09-12 Cilag Gmbh International Surgical instrument comprising sequenced systems
US11207067B2 (en) 2018-03-28 2021-12-28 Cilag Gmbh International Surgical stapling device with separate rotary driven closure and firing systems and firing member that engages both jaws while firing
US11627959B2 (en) 2019-06-28 2023-04-18 Cilag Gmbh International Surgical instruments including manual and powered system lockouts
CN112587191A (zh) 2020-12-14 2021-04-02 蚌埠冠鑫达医疗科技有限公司 吻合器的击发组件及吻合器
CN112773436B (zh) 2021-01-27 2024-10-01 北京天助畅运医疗技术股份有限公司 腔镜吻合器及其传动机构

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190059888A1 (en) * 2017-08-29 2019-02-28 Ethicon Llc Electrically-powered surgical box staplers
CN208524935U (zh) * 2017-12-19 2019-02-22 苏州英途康医疗科技有限公司 用于腔镜吻合器的摆头机构及腔镜吻合器
US20200222051A1 (en) * 2018-05-07 2020-07-16 Covidien Lp Surgical devices including trocar lock and trocar connection indicator
CN209032492U (zh) * 2018-07-31 2019-06-28 常州健瑞宝医疗器械有限公司 腔内切割吻合器及其头部变动机构
CN109480938A (zh) * 2018-11-23 2019-03-19 苏州英途康医疗科技有限公司 钉仓组件及吻合器
CN213883350U (zh) * 2020-10-27 2021-08-06 无锡贝恩外科器械有限公司 一种腔镜吻合器可视化控制钳头偏摆角度机构
CN216854749U (zh) * 2021-11-23 2022-07-01 天臣国际医疗科技股份有限公司 摆头机构及医用吻合器
CN216854747U (zh) * 2021-11-23 2022-07-01 天臣国际医疗科技股份有限公司 摆头机构及医用吻合器
CN216854748U (zh) * 2021-11-23 2022-07-01 天臣国际医疗科技股份有限公司 摆头机构及医用吻合器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4437977A4 *

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