WO2021078014A1 - 外科手术器械 - Google Patents

外科手术器械 Download PDF

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Publication number
WO2021078014A1
WO2021078014A1 PCT/CN2020/119954 CN2020119954W WO2021078014A1 WO 2021078014 A1 WO2021078014 A1 WO 2021078014A1 CN 2020119954 W CN2020119954 W CN 2020119954W WO 2021078014 A1 WO2021078014 A1 WO 2021078014A1
Authority
WO
WIPO (PCT)
Prior art keywords
firing
sleeve
assembly
working head
clip
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/CN2020/119954
Other languages
English (en)
French (fr)
Inventor
张翚
沈清
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.)
Suzhou IntoCare Medical Technology Co Ltd
Original Assignee
Suzhou IntoCare Medical Technology 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
Application filed by Suzhou IntoCare Medical Technology Co Ltd filed Critical Suzhou IntoCare Medical Technology Co Ltd
Priority to US17/760,801 priority Critical patent/US20220378434A1/en
Priority to EP20878806.7A priority patent/EP4014895B1/en
Publication of WO2021078014A1 publication Critical patent/WO2021078014A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/128—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for applying or removing clamps or clips
    • A61B17/1285—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for applying or removing clamps or clips for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00017—Electrical control of surgical instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/0046—Surgical instruments, devices or methods with a releasable handle; with handle and operating part separable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/0046—Surgical instruments, devices or methods with a releasable handle; with handle and operating part separable
    • A61B2017/00473—Distal part, e.g. tip or head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2926—Details of heads or jaws
    • A61B2017/2932—Transmission of forces to jaw members
    • A61B2017/2939—Details of linkages or pivot points

Definitions

  • the embodiment of the present disclosure relates to a surgical instrument.
  • a surgical instrument including: a handle, a working head connected to the handle, the handle or the working head providing power; a firing sleeve assembly detachably connected to the working head A clamp is provided on the side of the firing sleeve assembly away from the working head; and a clamping bin assembly inserted into the firing sleeve assembly and detachably connected with the working head.
  • the working head includes: a housing; a firing transmission assembly arranged in the housing to drive the firing sleeve assembly to realize the closing or opening of the clamp; arranged in the housing to drive the A clamping transmission assembly for clamping the clamping bin assembly; and a switching assembly for transmitting the power to the firing transmission assembly or the clamping transmission transmission assembly.
  • the firing sleeve assembly is detachably connected with the firing transmission assembly
  • the clamping bin assembly is detachably connected with the clamping transmission assembly.
  • the clip bin assembly includes a clip tray for placing ligation clips, a push clip used to push the ligation clip to move, and a push rod connected to the push clip, the push rod and the clip feeder
  • the transmission assembly can be detachably connected. Under the action of the power, the clip-feeding transmission assembly drives the push rod and the push clip piece to move to push the ligation clip to move, and the push clip piece pushes the ligation clip During the movement, the position of the clip tray relative to the working head remains unchanged.
  • the clip feeding transmission assembly includes a plug-in part detachably connected with the push rod and a clip-feed shaft connected with the plug-in part, and the clip-feed shaft is connected to the switching assembly.
  • the firing sleeve assembly includes a firing sleeve and a firing rod.
  • the firing rod includes a first end and a second end. The first end is closer to the working head than the second end.
  • the first end of the rod is connected to the firing sleeve, the second end of the firing rod is connected to the clamp, the firing sleeve is detachably connected to the firing transmission assembly, and under the action of the power
  • the firing transmission assembly drives the firing sleeve and the firing rod to move to close or open the clamp; the inner sleeve is inserted into the firing sleeve, and the clamp is connected to the inner sleeve The end part away from the working head is connected, the clamping chamber assembly is inserted into the inner sleeve, and when the firing transmission assembly drives the firing sleeve and the firing rod to move, the inner sleeve The position of the tube relative to the working head remains unchanged.
  • the firing sleeve assembly further includes an outer sleeve, the firing sleeve and the firing rod are inserted into the outer sleeve, and the outer sleeve is detachably connected to the housing of the working head;
  • the transmission assembly drives the firing sleeve and the firing rod to move, the position of the outer sleeve relative to the working head remains unchanged.
  • the outer sleeve is fixedly connected to the inner sleeve.
  • the working head further includes a butt joint pipe connected to the housing, at least a part of the firing transmission assembly and the clamping transmission assembly are further arranged in the butt joint pipe, and the outer sleeve is detachably connected to the butt joint pipe .
  • the docking pipe is detachably connected to the housing.
  • the working head further includes a rotating head, the rotating head is rotatably connected with the butting pipe, and the outer sleeve is clamped with the rotating head.
  • one of the rotating head and the outer tube is provided with a small hole
  • the other of the rotating head and the outer tube is provided with a small hole to engage with the small hole to make the outer tube and the rotating The sphere that the head catches.
  • the firing rod is arranged in the firing sleeve or outside the firing sleeve.
  • the firing rod includes a first firing rod, a second firing rod, and a bent portion for connecting the first firing rod and the second firing rod, and the first firing rod is connected with the firing sleeve,
  • the second firing rod is connected to the clamp, and the bent portion is bent from a side close to the inner sleeve to a side away from the inner sleeve so that the second firing rod is connected to the clamp.
  • the inner sleeve is not in direct contact.
  • one of the firing rod and the firing sleeve is provided with a protrusion
  • the other of the firing rod and the firing sleeve is provided with a long notch that slides in cooperation with the protrusion, and the protrusion And the long notch is located between the first end and the second end of the firing rod.
  • the firing transmission assembly includes a firing block connected with the firing sleeve and a firing shaft connected with the firing block, and the firing shaft is connected with the switching assembly.
  • the handle provides the power
  • a motor is provided in the handle, the motor has an output shaft
  • the working head further includes a working head arranged in the housing and used to connect the output shaft and the switching assembly The transmission mechanism.
  • Fig. 1 is a schematic structural diagram of a surgical instrument according to an embodiment of the disclosure.
  • Fig. 2 is a schematic diagram of the surgical instrument of Fig. 1 after being disassembled.
  • Fig. 3 is another structural schematic diagram of the surgical instrument according to the embodiment of the disclosure, showing the firing transmission assembly and the clip-feeding transmission assembly arranged in the housing.
  • Fig. 4 is another structural schematic diagram of the surgical instrument according to the embodiment of the disclosure, showing the firing sleeve and the firing rod inserted into the outer sleeve.
  • Fig. 5 is a partial enlarged view of Fig. 4.
  • Fig. 6 is a schematic cross-sectional view of Fig. 1.
  • Fig. 7 is a partial enlarged view of Fig. 6.
  • Fig. 8 is another schematic cross-sectional view of Fig. 1 showing the inner sleeve inserted into the firing sleeve.
  • clamps capable of continuously feeding clamps came into being, but most of the clamps capable of continuously feeding clamps are disposable and integrated with the working head, which increases medical costs and increases the economic pressure on patients. .
  • embodiments of the present disclosure provide a surgical instrument, including: a handle 1, a working head 2 connected to the handle 1, and the handle 1 or the working head 2 provides power; and The firing sleeve assembly 3 to which the working head 2 is detachably connected, a clamp 33 is provided on the side of the firing sleeve assembly 3 away from the working head 2; and is inserted into the firing sleeve assembly 3 And the clamping bin assembly 4 is detachably connected with the working head 2.
  • the working head 2 includes: a housing 21; a firing transmission assembly 22 arranged in the housing 21 to drive the firing sleeve assembly 3 to realize the closing or opening of the clamp 33; In the housing, a clamping transmission assembly 23 for driving the clamping bin assembly 4 to forward clamping; and a switching assembly 24 for transmitting the power to the firing transmission assembly 22 or the clamping transmission transmission assembly 23.
  • the firing sleeve assembly 3 and the firing transmission assembly 22 are detachably connected (for example, plugged in), and the clamping bin assembly 4 is detachably connected (for example, plugged in) with the clip sending transmission assembly 23.
  • the firing sleeve assembly 3 and the firing transmission assembly 22 are connected to wrap the clamping chamber assembly 4 so that the clamping chamber assembly 4 and the clamp 33 are connected.
  • the front end of the clamp assembly 4 and the rear end of the clamp 33 are in contact with each other.
  • the front end of a component is the end of the component away from the working head 2
  • the rear end of the component is the end of the component close to the working head 2.
  • the firing sleeve assembly 3 includes: a firing sleeve 31 and a firing rod 34.
  • the firing rod 34 includes a first end and a second end. The two ends are close to the working head 2, the first end of the firing rod 34 is connected to the firing sleeve 31, the second end of the firing rod 34 is connected to the clamp 33, and the firing sleeve 31 It is detachably connected with the firing transmission assembly 22, and under the action of the power, the firing transmission assembly 22 drives the firing sleeve 31 and the firing rod 34 to move so that the clamp 33 is closed or opened.
  • the firing sleeve assembly 3 further includes: an inner sleeve 32 inserted into the firing sleeve 31, and the clamp 33 is connected to the end of the inner sleeve 32 away from the working head 2 ,
  • the cartridge assembly 4 is inserted into the inner sleeve.
  • the firing transmission assembly 22 drives the firing sleeve 31 to move, and then the firing sleeve 31 drives the firing rod 34 to move, so as to realize the closing or opening of the clamp 33 connected to the firing rod 34 .
  • the position of the inner sleeve 32 relative to the working head 2 remains unchanged, so as to ensure that the position of the clamp 33 connected to the inner sleeve 32 is stable. This ensures that the ligation clip 42 is applied at the correct position.
  • the position of the inner sleeve 32 relative to the working head 2 remains unchanged, which can be designed according to actual conditions, which is not limited here.
  • the inner sleeve 32 is connected with the outer sleeve 36 described below, and the outer sleeve 36 is connected with the housing 21 of the working head 2 so that the position of the inner sleeve 32 relative to the working head 2 remains unchanged.
  • the firing sleeve assembly 3 further includes an outer sleeve 36.
  • the firing sleeve 31 and the firing rod 34 are inserted into the outer sleeve 36, and the outer sleeve 36 and the firing rod 34 are inserted into the outer sleeve 36.
  • the housing 21 of the working head 2 can be detachably connected. By providing the overtube 36, the appearance of the surgical instrument can be made more beautiful.
  • the clamping angle can be adjusted.
  • the firing transmission assembly 22 drives the firing sleeve 31 and the firing rod 34 to move, the position of the outer sleeve 36 relative to the working head 2 remains unchanged.
  • the outer sleeve 36 is connected to the housing 21 of the working head 2 so that the position of the outer sleeve 36 relative to the working head 2 remains unchanged.
  • the inner sleeve 32, the firing sleeve 31, and the outer sleeve 36 are arranged in sequence from the inside to the outside.
  • the inner sleeve 32 and the outer sleeve 36 are fixedly connected.
  • the firing sleeve 31 is correspondingly provided with an escape notch to prevent the inner sleeve 32
  • the connection with the outer sleeve 36 hinders the forward and backward movement of the firing sleeve 31 in the axial direction.
  • the working head 2 further includes a butting pipe 26 connected to the housing 21, and at least a part of the firing transmission assembly 22 and the clamping transmission assembly 23 are further arranged in the butting pipe 26; in this case, the outer sleeve of the firing sleeve assembly 3 36 is detachably connected with the butt pipe 26.
  • the outer tube 36 of the firing sleeve assembly 3 is connected to the butting pipe 26 and the firing sleeve 31 and the firing transmission assembly 22 of the firing sleeve assembly 3 are fired, and the firing sleeve assembly 3 is fired.
  • the inner sleeve 32 wraps the clamping bin assembly 4, and the clamping bin assembly 4 is butted with the clamp 33.
  • the docking pipe 26 is detachably connected to the housing 21.
  • the working head 2 further includes a rotating head 5 for connecting the butting tube 26 and the outer sleeve 36 of the firing sleeve assembly 3.
  • the rotating head 5 is rotatably connected with the butting pipe 26.
  • the outer sleeve 36 is clamped to the rotating head 5.
  • one of the rotating head 5 and the outer tube 36 is provided with a small hole 311, and the other of the rotating head 5 and the outer tube 36 is provided with a small hole 311 to engage with the small hole 311 so that the The outer sleeve 36 is clamped with the sphere 25 of the rotating head 5.
  • the rotating head 5 is rotatably connected with the docking tube 26.
  • the rotating head 5 is manually rotated.
  • the rotating head 5 drives the firing sleeve assembly 3 and the clamping bin assembly wrapped in the firing sleeve assembly 3 to rotate to adjust the clamping angle, which is convenient for operation.
  • the person performs the operation.
  • the firing sleeve assembly 3 has a radial stopper that limits the firing sleeve 31 in the radial direction but does not prevent the firing sleeve 31 from moving from the working head 2 to the clamp 33.
  • the radial limiter includes: a sliding groove provided on one of the outer sleeve 36 and the firing sleeve 31 and extending in the axial direction; and a protrusion provided on the other of the outer sleeve 36 and the firing sleeve 31, The protrusion is locked into the sliding groove and can slide in the axial direction in the sliding groove.
  • the firing sleeve 31 can be driven to rotate.
  • the protrusion is locked into the sliding groove and can slide in the axial direction in the sliding groove, even if a radial stop is provided, the firing sleeve 32 can still move back and forth in the axial direction.
  • the firing rod 34 is arranged in the firing sleeve 31 or outside the firing sleeve 31.
  • the inner sleeve 32 is inserted into the firing sleeve 31, so for the convenience of manufacturing, the firing rod 34 is arranged outside the firing sleeve 31.
  • one of the firing rod 34 and the firing sleeve 31 is provided with a protrusion 321, and the other of the firing rod and the firing sleeve 31 is provided with a long notch that cooperates with the protrusion 321 to slide. 344.
  • the protrusion 321 and the long notch 344 are located between the first end and the second end of the firing rod 34. The sliding fit of the long notch 344 and the protrusion 321 prevents the firing rod 34 from deviating from its movement trajectory during the movement, resulting in unstable closing or opening of the clamp 33.
  • the clamp 33 includes a first clamp 331 and a second clamp 332 connected to the inner sleeve 32, the inner sleeve 32 is provided with a rotating shaft, the first clamp 331 and the second clamp
  • the pliers 332 is provided with a through hole 333, and the first pliers 331 and the second pliers 332 are opened and closed through the rotation of the through hole 333 and the rotating shaft.
  • the first clamp 331 has a first extension extending from the through hole 333 to the working head 2, and the second clamp 332 There is a second extension part extending from the through hole 333 to the working head 2, the firing rod 34 is connected to the first extension part and the second extension part through a connecting piece 35, and the connecting piece 35 includes a first connecting piece connected to the first extension part 351 and a second connecting member 352 connected to the second extension part.
  • the first connecting member 351 is connected to the second connecting member 352 and then connected to the firing rod 34.
  • the firing rod 34 moves forward to close the first clamp 331 and the second clamp 332, and the firing rod 34 moves backward to open the first clamp 331 and the second clamp 332.
  • the firing rod 34 includes a first firing rod 341, a second firing rod 342, and a bent portion 343 for connecting the first firing rod 341 and the second firing rod 342; the first firing rod 341 is connected to the firing sleeve 31,
  • the second firing rod 342 is connected to the clamp 33, for example, the second firing rod 342 is connected to the clamp 33 through the above-mentioned connecting member 35.
  • the firing sleeve 31 drives the first firing rod 341, the bending portion 343, and the second firing rod 342 to move forward or backward at the same time.
  • the front end of the inner sleeve 32 may be exposed from the front end of the firing sleeve 31.
  • the bent portion 343 is bent from the side close to the inner sleeve 32 to the side far away from the inner sleeve 32 so that the second firing rod 342 does not directly contact the inner sleeve 32, reducing the firing rod 34 and the inner sleeve. The friction between the tubes 32 to facilitate firing.
  • the firing transmission assembly 22 includes a firing block 222 connected with the firing sleeve 31 of the firing sleeve assembly 3 and a firing shaft 221 connected with the firing block 222, and the firing shaft 221 is connected with the switching assembly 24.
  • the firing transmission assembly 22 includes a transmission rod 223 and a firing ring 224, the transmission rod 223 is used to connect the firing block 222 and the firing ring 224, and the firing sleeve 31 is connected to the firing ring 224.
  • the firing transmission assembly 22 may also include other connecting components for connecting the firing block 222 and the firing sleeve 31, and connecting components for connecting the firing block 222 and the firing shaft 221, which are not specifically limited here, and are based on actual conditions. Depends.
  • the clip compartment assembly 4 includes a clip tray 41 for placing the ligation clip 42, a push clip 43 for pushing the ligation clip 42 to move, and a push rod 44 connected with the push clip 43.
  • the rod 44 is detachably connected with the clamping transmission assembly 23. Under the action of the power, the clip feeding transmission assembly 23 drives the push rod 44 to move, and then drives the push clip 43 to move, thereby pushing the ligation clip 42 to move to send the ligation clip 42 into the place.
  • the clamp 33 Under the action of the power, the clip feeding transmission assembly 23 drives the push rod 44 to move, and then drives the push clip 43 to move, thereby pushing the ligation clip 42 to move to send the ligation clip 42 into the place.
  • the position of the clip tray 41 relative to the working head 2 remains unchanged.
  • the position of the clip tray 41 relative to the working head 2 remains unchanged, which can be designed according to actual conditions. For example, during the process of connecting the clamping bin assembly 4 and the clamping transmission assembly 23, the inner sleeve 31 is clamped with the clamp tray 41 to fix the clamp tray 41.
  • the clamping transmission assembly 23 includes a plug-in portion 232 detachably connected to the push rod 44 and a clamping-supply shaft 231 connected to the plug-in portion 232, and the clamping-supply shaft 231 is connected to the switching assembly 24.
  • the plug-in portion 232 includes a plug-in block 2321 that is detachably connected to the push rod 44, a connecting rod 2322 that is connected to the plug-in block 2321, and a connecting portion for connecting the clamping shaft 231 and the connecting rod 2322. 2323.
  • the plug-in portion 232 may be another structure that connects the clamping shaft 231 and the push rod 44; the specific structure of the plug-in portion 232 is designed according to actual conditions, and is not specifically limited here.
  • the handle 1 or the working head 2 provides power.
  • the power provided by the handle 1 is transmitted to the working head 2, and the working head 2 transmits the power to the firing transmission assembly 22 or the clamping transmission assembly 23.
  • the handle 1 does not provide power, and the working head 2 itself provides power and transmits it to the firing transmission assembly 22 or the clamping transmission assembly 23.
  • the handle 1 and the working head 2 are detachably connected; in this case, the handle 1 provides power so that the handle 1 can be applied to various working heads 2.
  • the handle 1 is provided with a motor 11, the motor 11 has an output shaft, and the working head 2 also includes a transmission mechanism provided in the housing 21 and used to connect the output shaft and the switching assembly 24 25.
  • the transmission mechanism 25 transmits the radial force output by the motor 11 into an axial force, and at the same time transmits the axial force to the switching assembly 24.
  • the switching component 24 transmits the axial force to the clamping transmission assembly 23
  • the clamping transmission transmission assembly 23 drives the clamping bin assembly 4 to transmit clamping to the clamping tongs 33.
  • the firing transmission assembly 22 drives the firing sleeve 31, and then drives the firing rod 34, so that the clamp 33 is closed or opened.
  • the transmission mechanism 25 includes a bevel gear 251 connected with the motor 11 and a drive shaft 252 connected with the bevel gear 251.
  • the handle 1 further includes a handle housing 12 that defines a receiving cavity, a control circuit arranged in the receiving cavity and electrically connected to the motor 11, a first switch 13 and a second switch 14 arranged on the handle housing 12 and coupled to the control circuit.
  • the switching component 24 is coupled to the control circuit.
  • the switch assembly 24 is toggled to make the surgical instrument according to the embodiment of the present disclosure work in the clip feeding state; the first switch 13 is pressed, the motor 11 provides power and transmits the power to the clip feeding transmission assembly 23, the clip feeding transmission assembly 23
  • the push rod 44 of the clamping bin assembly 4 is driven to move forward to send the ligation clip 42 into the clamp 33 to complete the clamping action; when the first switch 13 is released, the push rod 44 of the clamping bin assembly 4 moves backward to reset.
  • the switch assembly 24 is toggled to put the surgical instrument according to the embodiment of the present disclosure in a firing state, the second switch 14 is pressed, the motor 11 provides power and transmits the power to the driving firing transmission assembly 22,
  • the firing transmission assembly drives the firing sleeve 31 and the firing rod 34 to move forward to close the clamp 33, thereby applying the ligation clamp 42 to the blood vessel around the target tissue for hemostasis; release the second switch 14 to fire the sleeve 31 and
  • the firing lever 34 moves backward to reset.
  • a plurality of ligation clips 42 may be applied to the blood vessel around the target tissue.
  • the surgical instrument can be disassembled to replace the clamping cartridge assembly 44 with a new one.
  • the control circuit, the first switch 13 and the second switch 14 can also be arranged on the working head, which depends on the actual situation and is not specifically limited here.
  • the clamping chamber assembly 4 can be replaced separately and the firing sleeve assembly 3 and the working head 2 can be reused. Save medical costs and reduce the economic pressure of patients.
  • the switching assembly 24 by providing the switching assembly 24, the power is transmitted to the firing transmission assembly 22 butted with the firing sleeve assembly 3 or the clamping transmission assembly 23 butted with the clamping chamber assembly 4, so as to realize the respective control of clamping clamping. And firing to prevent operating errors during use and cause medical accidents.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Reproductive Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

一种外科手术器械，包括：手柄（1）、与手柄（1）连接的工作头（2），手柄（1）或工作头（2）提供动力；与工作头（2）可拆卸连接的击发套管组件（3），在击发套管组件（3）的远离工作头（2）的一侧设置有夹钳（33）；以及插入至击发套管组件（3）内且与工作头（2）可拆卸连接的夹仓组件（4）。工作头（2）包括：壳体（21）；设置在壳体（21）内用以驱动击发套管组件（3）以实现夹钳（33）闭合或张开的击发传动组件（22）；设置在壳体（21）内用以驱动夹仓组件（4）送夹的送夹传动组件（23）；以及用于将动力传动至击发传动组件（22）或送夹传动组件（23）的切换组件（24）。击发套管组件（3）与击发传动组件（22）可拆卸连接，夹仓组件（4）与送夹传动组件（23）可拆卸连接。击发套管组件（3）及夹仓组件（4）与工作头（2）可拆卸连接的同时，击发套管组件（3）与夹仓组件（4）也可拆卸连接，达到减小医用成本、缓解患者经济压力的效果。

Description

外科手术器械
本申请要求于2019年10月23日递交的第201911012331.6号中国专利申请的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开的实施例涉及一种外科手术器械。
背景技术
外科手术过程中为充分暴露手术视野，需要对目标组织周围血管进行结扎，以阻止出血。止血技术已经成为了外科手术基本操作技术的核心之一，人体任何部位的外科操作几乎无一例外地涉及到出血与止血。一般地，使用外科手术器械施加结扎夹，结扎夹对目标组织周围血管进行结扎。
发明内容
根据本公开实施例，提供一种外科手术器械，包括：手柄、与所述手柄连接的工作头，所述手柄或所述工作头提供动力；与所述工作头可拆卸连接的击发套管组件，在所述击发套管组件的远离所述工作头的一侧设置有夹钳；以及插入至所述击发套管组件内且与所述工作头可拆卸连接的夹仓组件。所述工作头包括：壳体；设置在所述壳体内用以驱动所述击发套管组件以实现所述夹钳闭合或张开的击发传动组件；设置在所述壳体内用以驱动所述夹仓组件送夹的送夹传动组件；以及用于将所述动力传动至所述击发传动组件或送夹传动组件的切换组件。所述击发套管组件与所述击发传动组件可拆卸连接，所述夹仓组件与所述送夹传动组件可拆卸连接。
例如，所述夹仓组件包括用以放置结扎夹的夹子托盘、用以推动所述结扎夹移动的推夹片及与所述推夹片连接的推杆，所述推杆与所述送夹传动组件可拆卸连接，在所述动力的作用下所述送夹传动组件带动所述推杆和所述推夹片运动以推动所述结扎夹移动，在所述推夹片推动所述结扎夹移动的过 程中，所述夹子托盘相对于所述工作头的位置保持不变。
例如，所述送夹传动组件包括与所述推杆可拆卸连接的插接部及与所述插接部连接的送夹轴，所述送夹轴与所述切换组件连接。
例如，所述击发套管组件包括：击发套管以及击发杆，所述击发杆包括第一端和第二端，所述第一端比所述第二端靠近所述工作头，所述击发杆的第一端与所述击发套管连接，所述击发杆的第二端与所述夹钳连接，所述击发套管与所述击发传动组件可拆卸连接，在所述动力的作用下所述击发传动组件带动所述击发套管和所述击发杆运动以使得所述夹钳闭合或张开；内套管，插入至所述击发套管内，所述夹钳与所述内套管的远离所述工作头的端部连接，所述夹仓组件插入至所述内套管内，在所述击发传动组件带动所述击发套管和所述击发杆运动的过程中，所述内套管相对于所述工作头的位置保持不变。
例如，所述击发套管组件还包括外套管，所述击发套管与所述击发杆插入至所述外套管内，所述外套管与所述工作头的壳体可拆卸连接；在所述击发传动组件带动所述击发套管和所述击发杆运动的过程中，所述外套管相对于所述工作头的位置保持不变。
例如，所述外套管与所述内套管固定连接。
例如，所述工作头还包括与所述壳体连接的对接管，至少部分所述击发传动组件及送夹传动组件进一步设置在所述对接管内，所述外套管与所述对接管可拆卸连接。
例如，所述对接管与所述壳体可拆卸连接。
例如，所述工作头还包括旋转头，旋转头与所述对接管旋转连接，所述外套管与所述旋转头卡接。
例如，所述旋转头和所述外套管之一上设置有小孔，所述旋转头和所述外套管另一上设置有与所述小孔卡合以使得所述外套管与所述旋转头卡接的球体。
例如，所述击发杆设置在所述击发套管内或者设置在所述击发套管外。
例如，所述击发杆包括第一击发杆、第二击发杆及用以连接所述第一击发杆、第二击发杆的弯折部，所述第一击发杆与所述击发套管连接，所述第二击发杆与所述夹钳连接，所述弯折部自靠近所述内套管的一侧向远离所述 内套管的一侧弯折以使得所述第二击发杆与所述内套管不直接接触。
例如，所述击发杆和所述击发套管之一上设置有凸块，所述击发杆和所述击发套管另一上设置与所述凸块配合滑动的长槽口，所述凸块和所述长槽口位于所述击发杆的第一端和第二端之间。
例如，所述击发传动组件包括与所述击发套管连接的击发块及与所述击发块连接的击发轴，所述击发轴与所述切换组件连接。
例如，所述手柄提供所述动力，所述手柄内设置有电机，所述电机具有输出轴，所述工作头还包括设置在所述壳体内且用以连接所述输出轴及所述切换组件的传动机构。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例的附图作简单地介绍，显而易见地，下面描述的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为本公开的实施例的外科手术器械的结构示意图。
图2为图1的外科手术器械拆卸后的示意图。
图3为本公开的实施例的外科手术器械的另一结构示意图，示出了设置在壳体内的击发传动组件和送夹传动组件。
图4为本公开的实施例的外科手术器械的又一结构示意图，示出了插入至外套管内的击发套管和击发杆。
图5为图4的局部放大图。
图6为图1的剖面示意图。
图7为图6的局部放大图。
图8为图1的另一剖面示意图，示出了插入至击发套管内的内套管。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实 施例，都属于本公开保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同，并不排除其他元件或者物件。术语“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
例如，在手术过程中，由于对结扎夹数量的要求，使得操作者需要多次进行施夹操作，这样降低了工作效率，增加了手术时间，增大了患者出血量，延长了患者恢复时间。在此情形下，能够连续送夹的夹钳应运而生，但是能够连续送夹的夹钳大部分都是一次性使用且与工作头一体设置，增加了医用成本，也增加了患者的经济压力。
请参见图1至图3，本公开的实施例提供一种外科手术器械，包括：手柄1、与所述手柄1连接的工作头2，所述手柄1或所述工作头2提供动力；与所述工作头2可拆卸连接的击发套管组件3，在所述击发套管组件3的远离所述工作头2的一侧设置有夹钳33；以及插入至所述击发套管组件3内且与所述工作头2可拆卸连接的夹仓组件4。所述工作头2包括：壳体21；设置在所述壳体21内用以驱动所述击发套管组件3以实现所述夹钳33闭合或张开的击发传动组件22；设置在所述壳体内用以驱动所述夹仓组件4送夹的送夹传动组件23；以及用以将所述动力传动至所述击发传动组件22或送夹传动组件23的切换组件24。所述击发套管组件3与所述击发传动组件22可拆卸连接(例如，插接)，所述夹仓组件4与所述送夹传动组件23可拆卸连接(例如，插接)。
例如，夹仓组件4与送夹传动组件23连接完成后，击发套管组件3与击发传动组件22连接以包裹夹仓组件4，使得夹仓组件4与夹钳33对接。例如，夹仓组件4的前端与夹钳33的后端彼此接触。需要说明的是，在根据本公开的实施例中，一个部件的前端是该部件的远离工作头2的端部，该部件的后端是该部件的靠近工作头2的端部。
例如，参见图4至图8，所述击发套管组件3包括：击发套管31以及击发杆34，所述击发杆34包括第一端和第二端，所述第一端比所述第二端靠近所述工作头2，所述击发杆34的第一端与所述击发套管31连接，所述击发杆34的第二端与所述夹钳33连接，所述击发套管31与所述击发传动组件22可拆卸连接，在所述动力的作用下所述击发传动组件22带动所述击发套管31和所述击发杆34运动以使得所述夹钳33闭合或张开。例如，所述击发套管组件3还包括：内套管32，插入至所述击发套管31内，所述夹钳33与所述内套管32的远离所述工作头2的端部连接，所述夹仓组件4插入至所述内套管内。所述击发传动组件22带动所述击发套管31运动，继而所述击发套管31带动所述击发杆34运动，从而实现与所述击发杆34连接的所述夹钳33的闭合或张开。在击发套管31和击发杆34运动的过程中，所述内套管32相对于所述工作头2的位置保持不变，这样才能保证与内套管32连接的夹钳33的位置稳定，从而保证在正确的位置施加结扎夹42。例如，所述内套管32相对于所述工作头2的位置保持不变的实现方式有很多种，可以根据实际情况进行设计，在此不做限定。例如，内套管32与如下所述的外套管36连接，外套管36与工作头2的壳体21连接，从而使得所述内套管32相对于所述工作头2的位置保持不变。
例如，参见图1至图4，所述击发套管组件3还包括外套管36，所述击发套管31与所述击发杆34插入至所述外套管36内，所述外套管36与所述工作头2的壳体21可拆卸连接。通过设置外套管36，可以使手术器械的外观更加美观。另外，如下所述，通过旋转外套管36，可以调整施夹角度。在所述击发传动组件22带动所述击发套管31和所述击发杆34运动的过程中，所述外套管36相对于所述工作头2的位置保持不变。在安装完成之后，所述外套管36与所述工作头2的壳体21连接，从而使得外套管36相对于所述工作头2的位置保持不变。在击发套管组件3中，内套管32、击发套管31以及外套管36由内至外依次设置。例如，内套管32与外套管36固定连接，在此情形下，在内套管32和外套管36彼此连接的位置处，击发套管31对应地设置有避让缺口，以防止内套管32和外套管36之间的彼此连接妨碍击发套管31在轴向方向上的前后运动。
例如，工作头2还包括与壳体21连接的对接管26，至少部分击发传动 组件22及送夹传动组件23进一步设置在对接管26内；在此情形下，击发套管组件3的外套管36与对接管26可拆卸连接。夹仓组件4与送夹传动组件23连接完成后，击发套管组件3的外套管36与对接管26连接并且击发套管组件3的击发套管31与击发传动组件22，击发套管组件3的内套管32包裹夹仓组件4，夹仓组件4与夹钳33对接。例如，对接管26与壳体21可拆卸连接。
例如，参见图1、图2和图8，工作头2还包括用以连接对接管26与击发套管组件3的外套管36的旋转头5。例如，旋转头5与对接管26旋转连接。例如，外套管36与所述旋转头5卡接。例如，所述旋转头5和所述外套管36之一上设置有小孔311，所述旋转头5和所述外套管36另一上设置有与所述小孔311卡合以使得所述外套管36与所述旋转头5卡接的球体25。例如，旋转头5与对接管26旋转连接，例如手动旋转旋转头5，旋转头5带动击发套管组件3及包裹在击发套管组件3内的夹仓组件旋转以调整施夹角度，方便操作者进行操作。例如，击发套管组件3具有径向限位件，该径向限位件在径向方向上对击发套管31进行限位但不妨碍击发套管31在从工作头2到夹钳33的轴向方向上的前后运动，从而旋转头5旋转带动外套管36旋转，外套管36带动击发套管31和内套管32旋转，实现整个击发套管组件3的旋转。例如，径向限位件包括：设置在外套管36和击发套管31之一上且沿轴向方向延伸的滑槽；以及设置在外套管36和击发套管31另一上的凸起，该凸起卡入滑槽且可在滑槽内沿轴向方向滑动。在径向限位件的作用下，外套管36旋转时可以带动击发套管31旋转。另外，由于凸起卡入滑槽且可在滑槽内沿轴向方向滑动，从而即使设置径向限位件，击发套管32仍然能在轴向上前后运动。
例如，所述击发杆34设置在所述击发套管31内或者设置在所述击发套管31外。如上所述，内套管32插入至击发套管31内，因此为了制作方便，所述击发杆34设置在所述击发套管31外。
例如，所述击发杆34和所述击发套管31之一上设置有凸块321，所述击发杆和所述击发套管31另一上设置与所述凸块321配合滑动的长槽口344，所述凸块321和所述长槽口344位于所述击发杆34的第一端和第二端之间。通过长槽口344与凸块321的滑动配合以防止击发杆34在运动过程中 偏离其运动轨迹，导致夹钳33的闭合或张开不稳定。
例如，参见图5和图8，夹钳33包括与内套管32连接的第一夹钳331及第二夹钳332，内套管32上设置有转轴，第一夹钳331与第二夹钳332上设置有通孔333，第一夹钳331与第二夹钳332通过通孔333与转轴的转动配合实现张开和闭合。例如，为了使得夹钳33与击发杆34更好的连接以及夹钳33更好的击发，第一夹钳331具有自通孔333向工作头2延伸的第一延伸部，第二夹钳332具有自通孔333向工作头2延伸的第二延伸部，击发杆34通过连接件35与第一延伸部和第二延伸部连接，连接件35包括与第一延伸部连接的第一连接件351及与第二延伸部连接的第二连接件352，第一连接件351与第二连接件352连接后再与击发杆34连接。击发杆34前移以使得第一夹钳331与第二夹钳332闭合，击发杆34后移以使得第一夹钳331与第二夹钳332张开。
需要说明的是，在图5中，为了简化图示，仅标示了通孔333而没有标示转轴；然而，需要说明的是，转轴与通过333配合，插入通孔333的部件即为转轴。
例如，击发杆34包括第一击发杆341、第二击发杆342及用以连接第一击发杆341和第二击发杆342的弯折部343；第一击发杆341与击发套管31连接，第二击发杆342与夹钳33连接，例如，第二击发杆342通过上述连接件35与夹钳33连接。在击发套筒31运动的过程中，击发套筒31带动第一击发杆341、弯折部343和第二击发杆342同时前进或后退。在击发套管31沿轴向前后运动的过程中，内套管32的前端可能会从击发套管31的前端露出。例如，弯折部343自靠近内套管32的一侧向远离内套管32的一侧弯折以使得第二击发杆342与内套管32不直接接触，减小击发杆34与内套管32之间的摩擦以方便击发。
例如，击发传动组件22包括与击发套管组件3的击发套管31连接的击发块222及与击发块222连接的击发轴221，击发轴221与切换组件24连接。例如，击发传动组件22包括传动杆223以及击发环224，该传动杆223用以连接击发块222及击发环224，击发套管31与击发环224连接。例如，击发传动组件22还可以包括其他用于连接击发块222与击发套管31的连接组件，以及用于连接击发块222及击发轴221的连接组件，在此不做具体限定，根 据实际情况而定。
例如，参见图2和图8，夹仓组件4包括用以放置结扎夹42的夹子托盘41、用以推动结扎夹42移动的推夹片43及与推夹片43连接的推杆44，推杆44与送夹传动组件23可拆卸连接。在所述动力的作用下所述送夹传动组件23带动所述推杆44运动，进而带动所述推夹片43运动，从而推动所述结扎夹42移动以将所述结扎夹42送入所述夹钳33。
例如，在所述推夹片43推动所述结扎夹42移动的过程中，所述夹子托盘41相对于所述工作头2的位置保持不变。夹子托盘41相对于所述工作头2的位置保持不变的实现方式有多种，可以根据实际情况进行设计。例如，在夹仓组件4与送夹传动组件23连接的过程中，内套管31与夹子托盘41卡接以使夹子托盘41固定。
例如，参见图6和图7，送夹传动组件23包括与推杆44可拆卸连接的插接部232及与插接部232连接的送夹轴231，送夹轴231与切换组件24连接。进一步地，例如，该插接部232包括与推杆44可拆卸连接的插接块2321、与该插接块2321连接的连杆2322及用以连接送夹轴231与连杆2322的连接部2323。需要说明的是，该插接部232可以为连接送夹轴231与推杆44的其他结构；插接部232的具体结构根据实际情况设计，在此不做具体限定。
如上所述，所述手柄1或所述工作头2提供动力。例如，在手柄1提供动力的情形下，手柄1提供的动力被传输至工作头2，工作头2再将动力传输至击发传动组件22或送夹传动组件23。例如，在工作头2提供动力的情形下，手柄1不提供动力，由工作头2本身提供动力并传输至击发传动组件22或送夹传动组件23。
例如，手柄1和工作头2可拆卸连接；在此情形下，手柄1提供动力，以使得手柄1可以适用于各种不同的工作头2。
例如，参见图1、图2以及图6，手柄1内设置有电机11，电机11具有输出轴，工作头2还包括设置在壳体21内且用以连接输出轴及切换组件24的传动机构25。该传动机构25将电机11输出的径向力传动为轴向力的同时，将轴向力传递至切换组件24。切换组件24将轴向力传动至送夹传动组件23时，送夹传动组件23驱动夹仓组件4向夹钳33送夹。切换组件24将轴向力传动至击发传动组件22时，击发传动组件22驱动击发套管31，进而驱动击 发杆34，以使得夹钳33闭合或张开。例如，在本公开实施例中，该传动机构25包括与电机11连接的锥齿轮251及与锥齿轮251连接的驱动轴252。
例如，手柄1还包括限定收容腔的手柄外壳12、设置在收容腔内且与电机11电连接的控制电路、设置在手柄外壳12上且耦合至控制电路的第一开关13及第二开关14，切换组件24耦合至控制电路。例如，拨动切换组件24使根据本公开实施例的外科手术器械处于送夹工作状态；按下第一开关13，电机11提供动力并将动力传动至送夹传动组件23，送夹传动组件23驱动夹仓组件4的推杆44向前运动以将结扎夹42送入夹钳33，从而完成送夹动作；松开第一开关13，夹仓组件4的推杆44向后运动复位。例如，在送夹完成后，拨动切换组件24使根据本公开实施例的外科手术器械处于击发工作状态，按下第二开关14，电机11提供动力并将动力传动至驱动击发传动组件22，击发传动组件驱动击发套管31和击发杆34向前运动以使得夹钳33闭合，从而将结扎夹42施加至目标组织周围的血管，进行止血；松开第二开关14，击发套管31和击发杆34向后运动复位。例如，重复执行上述的送夹动作和击发动作，可以将多个结扎夹42施加至目标组织周围的血管。在夹仓组件44中的结扎夹42全部施加完之后，可以拆卸根据本公开实施例的外科手术器械以更换新的夹仓组件44。例如，控制电路、第一开关13及第二开关14也可设置于工作头，根据实际情况而定，在此不做具体限定。
根据本公开的实施例，通过将击发套管组件3和夹仓组件4分别与工作头2可拆卸连接，使得夹仓组件4可单独更换且击发套管组件3与工作头2可重复利用，节约医用成本且减小患者经济压力。另外，根据本公开的实施例，通过设置切换组件24，将动力传动至与击发套管组件3对接的击发传动组件22或与夹仓组件4对接的送夹传动组件23，实现分别控制送夹及击发，防止在使用过程中操作失误，造成医疗事故。
以上所述的各技术特征可以进行任意的组合，为使描述简洁，未对上述各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为落入本公开的保护范围。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围由所附的权利要求确定。

Claims (15)

  1. 一种外科手术器械，包括：
    手柄、与所述手柄连接的工作头，所述手柄或所述工作头提供动力；
    与所述工作头可拆卸连接的击发套管组件，在所述击发套管组件的远离所述工作头的一侧设置有夹钳；以及
    插入至所述击发套管组件内且与所述工作头可拆卸连接的夹仓组件，其中，
    所述工作头包括：壳体；设置在所述壳体内用以驱动所述击发套管组件以实现所述夹钳闭合或张开的击发传动组件；设置在所述壳体内用以驱动所述夹仓组件送夹的送夹传动组件；以及用于将所述动力传动至所述击发传动组件或送夹传动组件的切换组件，
    所述击发套管组件与所述击发传动组件可拆卸连接，所述夹仓组件与所述送夹传动组件可拆卸连接。
  2. 如权利要求1所述的外科手术器械，其中，
    所述夹仓组件包括用以放置结扎夹的夹子托盘、用以推动所述结扎夹移动的推夹片及与所述推夹片连接的推杆，所述推杆与所述送夹传动组件可拆卸连接，在所述动力的作用下所述送夹传动组件带动所述推杆和所述推夹片运动以推动所述结扎夹移动，
    在所述推夹片推动所述结扎夹移动的过程中，所述夹子托盘相对于所述工作头的位置保持不变。
  3. 如权利要求2所述的外科手术器械，其中，所述送夹传动组件包括与所述推杆可拆卸连接的插接部及与所述插接部连接的送夹轴，所述送夹轴与所述切换组件连接。
  4. 如权利要求1-3任一项所述的外科手术器械，其中，所述击发套管组件包括：
    击发套管以及击发杆，所述击发杆包括第一端和第二端，所述第一端比所述第二端靠近所述工作头，所述击发杆的第一端与所述击发套管连接，所述击发杆的第二端与所述夹钳连接，所述击发套管与所述击发传动组件可拆卸连接，在所述动力的作用下所述击发传动组件带动所述击发套管和所述击 发杆运动以使得所述夹钳闭合或张开；
    内套管，插入至所述击发套管内，所述夹钳与所述内套管的远离所述工作头的端部连接，所述夹仓组件插入至所述内套管内，
    在所述击发传动组件带动所述击发套管和所述击发杆运动的过程中，所述内套管相对于所述工作头的位置保持不变。
  5. 如权利要求4所述的外科手术器械，其中，所述击发套管组件还包括外套管，所述击发套管与所述击发杆插入至所述外套管内，所述外套管与所述工作头的壳体可拆卸连接；
    在所述击发传动组件带动所述击发套管和所述击发杆运动的过程中，所述外套管相对于所述工作头的位置保持不变。
  6. 如权利要求5所述的外科手术器械，其中，所述外套管与所述内套管固定连接。
  7. 如权利要求5所述的外科手术器械，其中，所述工作头还包括与所述壳体连接的对接管，至少部分所述击发传动组件及送夹传动组件进一步设置在所述对接管内，所述外套管与所述对接管可拆卸连接。
  8. 如权利要求7所述的外科手术器械，其中，所述对接管与所述壳体可拆卸连接。
  9. 如权利要求7所述的外科手术器械，其中，所述工作头还包括旋转头，旋转头与所述对接管旋转连接，所述外套管与所述旋转头卡接。
  10. 如权利要求9所述的外科手术器械，其中，所述旋转头和所述外套管之一上设置有小孔，所述旋转头和所述外套管另一上设置有与所述小孔卡合以使得所述外套管与所述旋转头卡接的球体。
  11. 如权利要求4-10任一项所述的外科手术器械，其中，所述击发杆设置在所述击发套管内或者设置在所述击发套管外。
  12. 如权利要求4-11任一项所述的外科手术器械，其中，
    所述击发杆包括第一击发杆、第二击发杆及用以连接所述第一击发杆、第二击发杆的弯折部，所述第一击发杆与所述击发套管连接，所述第二击发杆与所述夹钳连接，
    所述弯折部自靠近所述内套管的一侧向远离所述内套管的一侧弯折以使得所述第二击发杆与所述内套管不直接接触。
  13. 如权利要求4-12任一项所述的外科手术器械，其中，所述击发杆和所述击发套管之一上设置有凸块，所述击发杆和所述击发套管另一上设置与所述凸块配合滑动的长槽口，所述凸块和所述长槽口位于所述击发杆的第一端和第二端之间。
  14. 如权利要求4-13任一项所述的外科手术器械，其中，所述击发传动组件包括与所述击发套管连接的击发块及与所述击发块连接的击发轴，所述击发轴与所述切换组件连接。
  15. 如权利要求1-14任一项所述的外科手术器械，其中，所述手柄提供所述动力，所述手柄内设置有电机，所述电机具有输出轴，所述工作头还包括设置在所述壳体内且用以连接所述输出轴及所述切换组件的传动机构。
PCT/CN2020/119954 2019-10-23 2020-10-09 外科手术器械 Ceased WO2021078014A1 (zh)

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