EP4312822A2 - Instrument chirurgical de perçage - Google Patents

Instrument chirurgical de perçage

Info

Publication number
EP4312822A2
EP4312822A2 EP22718652.5A EP22718652A EP4312822A2 EP 4312822 A2 EP4312822 A2 EP 4312822A2 EP 22718652 A EP22718652 A EP 22718652A EP 4312822 A2 EP4312822 A2 EP 4312822A2
Authority
EP
European Patent Office
Prior art keywords
surgical instrument
shaft
shaft element
rotor
drilling
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.)
Pending
Application number
EP22718652.5A
Other languages
German (de)
English (en)
Inventor
Frank Heuer
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.)
Mimeo Medical GmbH
Original Assignee
Mimeo Medical GmbH
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 Mimeo Medical GmbH filed Critical Mimeo Medical GmbH
Publication of EP4312822A2 publication Critical patent/EP4312822A2/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1604—Chisels; Rongeurs; Punches; Stamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1613—Component parts
    • A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
    • A61B17/1617—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material with mobile or detachable parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1613—Component parts
    • A61B17/1628—Motors; Power supplies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1613—Component parts
    • A61B17/1631—Special drive shafts, e.g. flexible shafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1659—Surgical rasps, files, planes, or scrapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1613—Component parts
    • A61B17/162—Chucks or tool parts which are to be held in a chuck
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1613—Component parts
    • A61B17/1633—Sleeves, i.e. non-rotating parts surrounding the bit shaft, e.g. the sleeve forming a single unit with the bit shaft
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires

Definitions

  • drilling instruments for opening bones are known in the prior art, which are used to prepare the bone for the insertion of implants, such as osteosynthesis screws.
  • implants such as osteosynthesis screws.
  • all drilling instruments work according to a rotary principle, in which a drilling tip is rotated around an axis. This creates only round openings in the bone.
  • Implants e.g. DE102019000965A1
  • WO2004107957A2, WO03032853A2 which are preferably non-round in shape so that they benefit from their biomechanical advantages due to their shape.
  • drilling instrument to prepare the implantation channel for such implants.
  • blade-like implants have been percussively driven into the bone, which can lead to clinical complications.
  • a drilling instrument suitable for this would have to be able to create a non-circular drilling channel and in the case of blade-like implants the drilling channel would even have to have a helical course along the drilling depth.
  • Bohr-Instruments (1) solved.
  • spatial coordinate references are defined, such as a proximal direction (101) and a distal direction (102), which extend along a central axis (103). from the central axis
  • the surgical instrument (1) is suitable for drilling in bone or bone fragments and consists of a drill section (5), a gear section (2) and a longitudinal shaft section (3) located between them with a first (30) and a second shaft member (40).
  • the second shaft element (40) is mounted at least in sections in the first shaft element (30).
  • each shank element performs a cyclic translational movement (130, 140) along the longitudinal axis (103).
  • the first shaft element (30) has a concentric opening (34) at least in sections along the longitudinal direction (103) and the second shaft element (40) has a concentric outer wall (43) at least in sections along the longitudinal direction (103). . It is advantageous if the concentric outer wall (43) of the second shaft element (40) is inserted into the concentric opening (34) of the first shaft element (30). Thus, both shaft elements are without additional
  • first shaft element (30) is at least partially tube-shaped and the second shaft element (40) is at least partially tube-shaped or designed as a solid round rod.
  • a tubular or full-round shape has the advantage that the shaft elements (30, 40) can be manufactured using a lathe, which results in time-saving effects and therefore cost savings.
  • the gear section (2) essentially consists of a rotor (10) with a central opening (13) and the two shaft elements (30, 40) mounted therein.
  • the two shaft elements (30, 40) each form a cam disk (310, 410) at their proximal end (101).
  • a characteristic of the configuration according to the invention is that the first and second shaft element (30, 40) each form a cam disk (310, 410), and the cam disk of the second shaft element (410) extends in the proximal direction (101) to the cam disk of the first shaft element (310) is arranged. It is therefore a double-stage cam disc gear.
  • Such an arrangement has the advantage that the parts are easier to manufacture and can also be dismantled at any time.
  • the rotor (10) To convert a rotational movement (110) of the rotor (10) into a translational movement (130, 140) of the shaft elements (30, 40), the rotor (10) must have at least two pins (1031, 1041 and/or 1032, 1042), wherein at least one pin (1031 and/or 1032) engages in the recess of the first cam (313, 312) and at least one further pin (1041 and/or 1042) engages in the recess of the second cam (413, 412).
  • a rotation of the rotor (110) with the pins (1031, 1032, 1041, 1042) causes the pins to deflect (130, 140 ). They are moved along the longitudinal axis (103).
  • the rotor (10) has at least two circumferentially opposite pins (1031, 1032) engaged in the recess of the first cam (312), and the rotor (10) has at least two more circumferentially opposing pins (1041, 1042) which engage in the recess of the second cam (312).
  • Cam disc (412) are located.
  • an opposing cyclical translational movement of the two shaft elements (130, 140) can also be generated in such a way that the sine waves (312, 412) of the two cam disks (310, 410) are provided in phase synchronism.
  • Opposite movement can then be induced by placing pins 1031 and 1041 and pins 1032 and 1042 at an angle to one another circumferentially. This angle and the number of sine periods in the circumferential direction then determine the phase offset or the degree of counter-rotation of the translational movement (130, 140, 150).
  • the surgical instrument (1) can be driven via the rotor (10), which has a shaft area (12) running proximally, which provides a coupling connection (11) which is suitable for applying a torque to the rotor (110). transferred to.
  • Handles or rotating drives such as electric, electromechanical, mechanical, pneumatic, hydraulic or other types of drives, can be detachably connected to the surgical instrument (1) at this coupling connection (11). It is important that these drives or handles are suitable for use in the OR and that the requirements for cleanability and sterilization are met.
  • a stator (20) is provided in order to set an orientation (108) of the drill section (5) in relation to the bone.
  • the orientation of the drill tip (108, 50) can be adjusted, varied and/or kept constant. It can be helpful for this if an indicator (25) is provided on the stator (20) which shows the orientation of the drill bit (51, 106, 108). It is irrelevant whether the indicator (25) is a marking, notch, inscription, relief, material application or removal, or whether an additional pointer element is provided.
  • Structures that are suitable for holding the stator (20) should also be understood as handles. These include, for example, notches, grooves,
  • the stator (20) can also be part of a housing, which is not shown here.
  • the shaft elements (30, 40) are provided at least in sections as a solid round or as a tube. So that the shaft elements (30, 40) do not rotate in relation to one another, it is advantageous if the shaft elements (30, 40) are directly (39, 49) or indirectly (37 , 47, 21, 22) are in contact with one another so that the shaft elements (30, 40) are twisted mutually excluded. Furthermore, it is also important that the shaft elements (30, 40) cannot rotate relative to the stator (20).
  • a surface or projection (37, 47) must be provided on at least one of the shaft elements (30, 40), which is in contact with the stator (20), so that the shaft element (30 and/or 40) are always at the same angle (106, 107) to one another in the circumferential direction with the stator (20).
  • the surgical drilling instrument (1) according to the invention can be guided over a guide wire (60) and also used for minimally invasive interventions, it is advantageous if the entire drilling instrument (1) including the drill section (5) is continuous cannulated (48, 18, 536, 546).
  • Drilling is performed with a translationally oscillating drill section (5), the drill section (5) consisting of at least two separate drill elements (53, 54) and these drill elements being connected to the shank elements (30, 40). are.
  • each drilling element (53, 54) is deflected individually by the drilling instrument (1).
  • the drilling elements have rasp teeth and, in combination, preferably a drilling tip (50) tapering to a point in the distal direction. Drilling is performed with a cyclically translatory rasp movement of the drill elements (53,
  • the advantage of the instrument (1) according to the invention lies in the fact that the drilling elements (53, 54) in combination create openings in the bone generate, which have a non-round cross-section. Furthermore, it is also conceivable that the opening in the bone deviates from the central axis (103) along the depth and, for example, follows a curvature. For blade-like implants, it is necessary and also possible for the drill elements (53, 54) to form a blade shape (52) in combination. When drilling with a translationally oscillating blade (52), it is then also possible to generate openings in the bone, the opening having a first cross section and a second cross section at two different depths, and the orientations of the two cross sections are different from one another.
  • FIG. 3 shows a side view of the drilling instrument according to the invention, as well as a detailed representation in section,
  • Fig. 4 side view of the shaft elements showing the processing of the cam discs
  • FIG. 6 shows an oblique view of the drilling instrument according to the invention with the demonstration that the drill section can be releasably connected
  • Fig. 7a,b detailed and exploded view of the drill section
  • Fig. 8a-d various views of the drill section
  • Fig. 11 illustrates the embodiment from Fig. 10 for a better view without a stator
  • Fig. 12a-c release mechanism for easy disassembly of the gear section for preparation of the instrument
  • FIG. 13a,b Individual representation of the alternative embodiment from Fig. 10.
  • (1) has a general structure. It consists of a gear section
  • a rotor (10) which, with the aid of a gear (2), converts a rotational movement (110) into a cyclic translational movement (130, 140) of the shaft elements (30, 40) along the central axis (103). converts.
  • the alignment (106) of the drill section (5, 108) and also of the shank area (3) can be adjusted and maintained (120) with the aid of a stator (20).
  • the rotor (10) rotates in relation to all instrument Components which are in alignment (106) with the stator (20).
  • the shank portion (3) preferably extends longitudinally along a central axis (103). This allows one
  • the shaft area (3) consists of at least two shaft elements (30, 40).
  • the drill section (5) has individually deflectable or movable drill elements (53, 54) which are in contact with one another but are not firmly connected to one another.
  • Each shaft element (30, 40) is mechanically connected to a drill element (30 with 53 and 40 with 54).
  • a movement e.g. translation
  • the drill elements (53, 54) preferably move in opposite directions for drilling. This allows openings to be provided in the distal direction (102) without rotating the drill elements (53, 54). The openings are rammed or rasped vertically into the bone.
  • Fig. 2 shows the detailed structure of the drilling instrument (1) according to the invention in an exploded view.
  • the second shaft element (40) is inserted almost completely into the first shaft element (30). Both shaft elements (30,
  • Both shaft elements (30, 40) are designed as a tube, which reduces manufacturing costs. At the At the respective distal end of the shaft elements there is a threaded section (35, 45) which serves as a detachable connection to the drill elements (53, 54), not shown here.
  • Both shaft elements (30, 40) each have a cam disc (310, 410) with a lateral surface (311, 411) pointing outwards. Further details on the cam disks (310, 410) with their lateral surfaces (311, 411), depressions (313, 413) and their curves (312, 412) are explained in more detail in FIG. Both cam discs (310, 410) are rotatory and translatory in the rotor (10).
  • Fig. 2 shows details of the rotor (10).
  • the rotor (10) is mainly round and has a distal (102) open concentric opening (13).
  • the rotor (10) is preferably closed in the proximal direction (101) and transitions into a shaft (12).
  • a drive section (11), which contains elements of a quick coupling, is provided on this shaft (12).
  • This drive section (11) is suitable for being able to connect different drive mechanisms that transmit a rotational movement (110) to the rotor (10).
  • Two or more openings (14) are provided on the rotor (10), which open in the radial direction (104) are aligned and run towards the central axis (103). Thus, these openings (14) communicate with the concentric opening (13) of the rotor.
  • Two or more pins (1031, 1032, 1041, 1042) are fixed, joined or mounted in these openings (14). When assembled, the pins protrude into the interior of the concentric opening (13) of the rotor and are in engagement with the cam discs (310, 410) as shown in FIG. 2 also shows the essential details of the stator (20).
  • the contact surfaces are designed in such a way that they tolerate a translational relative movement between the stator (20) and the shaft elements (30, 40) but at the same time the alignment (106) in the circumferential direction (105) between the stator and the drill section (108) is constant is held.
  • a keyhole-like opening (23) is provided on the stator (20), through which the shaft elements (30, 40) can be inserted from the proximal end in the assembled assembly.
  • stator (20) has one or more handles or handle features (24, 28) that a
  • the pins (1031, 1032, 1041, 1042) can be used to mount the instrument. inserted through the openings of the stator (28) and attached to the rotor (10) using a tool.
  • FIG. 3 shows a sectional view of the individual components shown in FIG. 2 and thus allows a glimpse into the assembly and functioning of the drilling instrument (1) according to the invention, the functioning and interaction of the components having already been described above.
  • the rotor (10) is arranged in such a way that it rotates about the central axis (103). Only this arrangement makes it possible for the entire instrument to be cannulated (18, 48) and for the gear to rotate around an inserted guide wire (60). This is also shown, for example, in FIGS. 9a and b.
  • an additional rotary drilling element to be located within the cannulation (48) and to be joined directly to the rotor (10).
  • the drill element can protrude distally from the instrument and rotates together with the rotor (10) in relation to the drill section (5).
  • a centering hole can be generated with the internal rotating drilling element before the translational drilling area (53, 54) follows automatically.
  • the cam disks (310, 410) each have a lateral surface (311, 411) directed radially outward.
  • the outer diameters of the lateral surfaces 311 and 411 are approximately the same size.
  • Each of the lateral surfaces has in the radial direction (104) a depression (313, 413) directed towards the central axis (103) and this depression runs in the circumferential direction (105) along the lateral surface (311, 411) and forms a closed curve (312, 412).
  • this curve can be represented as a sinusoidal curve, it being advantageous for the sine wave (312, 412) to be provided on the lateral surface (311, 411) so that it is axisymmetrical with respect to the longitudinal axis (103). In this way, more than one translational deflection of the shaft elements (30, 40) can be effected per revolution of the rotor (10). If two or more pins are provided for each cam in the rotor, at least two or a multiple of two sine waves must be provided for each curve.
  • the sinusoidal curve (312) of the first shaft element (30) in relation to the sinusoidal curve (412) of the first shaft element (40) in one phase offset optimally corresponds to between 20% and 80%, but preferably about 50%, of the oscillation period of the sine wave.
  • the curve (312, 412) is sinusoidal in a developed representation and the translation path of the shaft element (130, 140) is defined by the maxima (319, 419) of the sine wave (FIG. 4).
  • the translation path of the first and/or second shaft element (130, 140) is between 0.1 mm and 5 mm, preferably 0.2 mm and 4 mm. preferably 0.5mm to 3mm.
  • the translational path (150) of the first shaft element (30) in relation to the second shaft element (40) is approximately twice the translational path (130, 140) of one Shaft elements related to the rotor (10).
  • FIG. An alternative embodiment is illustrated in FIG.
  • more than two shaft elements as shown here with three shaft elements (30, 40 and 500), are also conceivable.
  • Any number of shaft elements can be plugged into one another, with a cam disk (310, 410 and 510) being provided for each shaft element at the proximal end.
  • the number of shank elements also defines the number of drill elements.
  • a drill section (5) is provided for drilling with two shank elements (30, 40) that move in a translatory and cyclic manner in opposite directions, the drill section (5) consisting of two drill sections that are separate from one another but are in direct contact.
  • Elements (53, 54) consists, and a first drilling element (53) with the first shank member (30) and a second drilling member (54) are connected to the second shank member (40). It is advantageous for the application if the drilling elements (53, 54) are connected to the shaft elements (30, 40) in a detachable or interchangeable manner either individually or as a whole (FIG. 6).
  • the drilling instrument (1) presented here offers the technical possibility of also providing openings with the profile of a blade in the bone. Furthermore, it is also possible to create a helical depth gradient of the blade profile. So that a drilling channel for a blade-like implant can be prepared, it is advantageous if the drilling elements (53, 54) together form a blade shape (52) (FIGS. 7a and b) and at least one of the drilling elements (53, 54) forms at least one blade wing (52). Shown here are two wings that together describe a blade shape (52).
  • the drill section (5) can be divided into two descriptive features; a drill core (56) and the wings (52) adjacent thereto ( Figures 7a, 7b, 8a-d).
  • the drill core (56) has a drill tip (50) that tapers in the distal direction. From this drill tip (50) in the proximal direction
  • the drilling core (56) Adjacent to this area (51) and running further in the proximal direction, the drilling core (56) has a reduced cross-section, so that this area no longer exerts a drilling effect and the drilling resistance is reduced. Furthermore, material removed in the resulting gap can be transported away in the proximal direction. It is advantageous if at least the drilling tip (50) and the drilling area (51) are equipped with rasp teeth (57). Teeth (57) are particularly suitable for rasping, which perform a cutting action in the direction of pull of the drill elements (53, 54) and can be easily introduced into the material in the direction of pressure. As shown ( Figures 8b and 8d), barb-like rasp teeth work best. Due to the easier penetration in the compression direction compared to rasping/chipping in the pulling direction, there is also an automatic advance into the material to be drilled. Of course, differently designed rasp or saw teeth with different angles or undercuts are also conceivable.
  • wings (52) or a blade shape are provided next to the drill core (56) of the drill section (5).
  • the wings (52) preferably have a first proximal orientation (107) and a second distal orientation (108) ( Figures 7a, 8c). If a drilling channel is to be provided for straight blade-like implants, the two alignments (107, 108) must not differ.
  • the wings are mainly parallel along the central axis (103). For curved blade-like implants, however, it is necessary that the alignments (107, 108) are different from each other and a helix is described.
  • the blade-like implant and the drill section should correspond at least in sections. This applies mainly to the number of wings and the defined pitch of the wings.
  • the wings (52) merge into the drill core (56) in the distal direction and rasp teeth (58) are formed at least in this transition area.
  • rasp teeth (58) are in contact with the material to be drilled and have a chipping and abrasive character.
  • a barb-like profile is also suitable here. The profile of the wing to be drilled is formed into the material with the teeth.
  • Pockets (59) can optionally be provided in or on the wings (52) so that the material removed can escape and be discharged from the drilling channel (FIGS. 8a, 8d).
  • the pockets are separated by outside edges on each wing (533 and 543).
  • Depth indicators (55) are preferably provided on the drilling elements (53, 54), which give the user information about the current drilling depth.
  • the cross section of the drill elements changes due to the offset of the drill elements relative to one another (150).
  • the cross-sectional area is at its maximum in the middle position, so that both drilling elements (53, 54) form the drilling channel at this position.
  • the deflection position of the drill elements starting from the middle position means that when the drill elements are offset, a distal advance into the material is made possible.
  • the drill element running proximally transports the rasped material away proximally and at the same time supports itself with the rasp teeth (57, 58) on the inner wall of the drill channel in order to enable a counter bearing for the opposite and distal running drill element.
  • This arrangement of the rasp teeth in combination with the translational rasp movement reduces the forces required for drilling, since the drilling instrument (1) pulls itself into the material to a certain extent.
  • the cross-section of the drill is reduced during a translatory deflection movement from the center position, so that the drilling elements in the drill channel no longer block each other and space is created for the translatory movement in the drill channel.
  • both drill elements have a guide structure or profile (532, 542). Different profiles are suitable for this, which prevent the two drill elements (53, 54) from slipping sideways. This function can also be fulfilled by a guide wire (60) as an additional component. Both drill elements have a partial section of a cannulation opening (536, 546) (FIGS. 9a and 9b).
  • the pins (1031, 1041, 1032, 1042) can be detached from the rotor (10). This can be achieved either by a thread. Alternatively, other plug-in or detachable joining methods are conceivable. It is also possible for the pins to be provided in groups of two, or for the rotor to have a multi-part structure, for example, so that the shaft elements (30, 40) are released from the rotor.
  • the rotor (10) has a longitudinally movable outer sleeve (19) (Figs. 10-11).
  • the outer sleeve can assume a first position (191) in which the inner pin spacing 1033 is smaller than the inner diameter 130 of the opening of the rotor (13) (FIGS. 12a-c).
  • the outer sleeve (19) can assume a second position (192) in which the inner pin spacing 1033 is equal to or greater than the inner diameter 130 of the opening of the rotor (13). That is, as soon as the pins (1031,
  • This alternative embodiment also shows the design of the structure in which the first shaft element (30) is only partially supported in the second shaft element (40) (FIGS. 12a and 12b).
  • both shaft elements (30, 40) it is possible for both shaft elements (30, 40) to already have surfaces or walls (39, 49) which are in direct contact with one another stand and prevent twisting of the two shaft elements against each other.
  • the drill elements (53, 54) can be designed in one piece with the shank elements (30, 40) if the manufacturing strategy allows it.

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

Abstract

L'invention concerne un instrument chirurgical (1) pour percer dans des os ou des fragments d'os, constitué d'une partie foret (5), d'une partie transmission (2) et d'une partie tige longitudinale (3) située entre la partie foret et la partie transmission et qui comprend un premier (30) et un second élément tige (40) ; l'instrument chirurgical étant caractérisé en ce que le second élément tige (40) est monté au moins en partie dans le premier élément tige (30) et en ce que chaque élément tige effectue un mouvement de translation cyclique (130, 140) le long de l'axe longitudinal (103) pour le perçage dans l'os.
EP22718652.5A 2021-03-26 2022-03-25 Instrument chirurgical de perçage Pending EP4312822A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021001608.4A DE102021001608B4 (de) 2021-03-26 2021-03-26 Chirurgisches Bohr-Instrument
PCT/EP2022/058031 WO2022200622A2 (fr) 2021-03-26 2022-03-25 Instrument chirurgical de perçage

Publications (1)

Publication Number Publication Date
EP4312822A2 true EP4312822A2 (fr) 2024-02-07

Family

ID=81386599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22718652.5A Pending EP4312822A2 (fr) 2021-03-26 2022-03-25 Instrument chirurgical de perçage

Country Status (4)

Country Link
US (1) US20240173040A1 (fr)
EP (1) EP4312822A2 (fr)
DE (1) DE102021001608B4 (fr)
WO (1) WO2022200622A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021001608B4 (de) * 2021-03-26 2025-01-23 Mimeo Medical Gmbh Chirurgisches Bohr-Instrument

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GB2219953A (en) 1987-10-14 1989-12-28 John W Baker Drill head assembly for cranial perforators
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US20240173040A1 (en) 2024-05-30
DE102021001608B4 (de) 2025-01-23
WO2022200622A2 (fr) 2022-09-29
DE102021001608A1 (de) 2022-09-29

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