WO2024045070A1

WO2024045070A1 - Surgical operation instrument and nail bin assembly

Info

Publication number: WO2024045070A1
Application number: PCT/CN2022/116301
Authority: WO
Inventors: 陈炜; 李鑫; 张晋
Original assignee: 杭州迈瑞医疗科技有限公司
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2024-03-07

Abstract

Disclosed are a surgical operation instrument and a nail bin assembly. The surgical operation instrument comprises a handle assembly, a gun barrel assembly, a nail bin assembly, and an actuator assembly. The nail bin assembly comprises a mounting seat, a nail pushing member, and a cutting knife. The mounting seat is provided with a plurality of mounting positions used for mounting suturing nails. The mounting seat is provided with a tissue junction surface used for being in contact with tissue. The nail pushing member is movably arranged on the mounting seat. The cutting knife is movably connected to the mounting seat. The nail pushing member and the cutting knife can move from the proximal end of the mounting seat to the distal end of the mounting seat. The cutting knife can move in a motion plane not parallel to the tissue junction surface, such that the cutting knife is switched between a first state and a second state. The distance of a cutting edge of the cutting knife in the first state higher than the tissue junction surface is greater than the distance of the cutting edge of the cutting knife in the second state higher than the tissue junction surface. The cutting knife in the first state can conveniently perform cutting work, and the cutting knife in the second state is beneficial to reducing the possibility of the case that the cutting edge of the cutting knife damages an operator.

Description

A surgical instrument and nail cartridge assembly

Technical field

This application relates to the technical field of medical devices, specifically to a surgical instrument and a nail cartridge assembly.

Background technique

At present, minimally invasive surgery occupies an important position in surgical operations, and staplers are commonly used surgical instruments in minimally invasive surgery. The working principle of the stapler is to clamp the jaws of the distal actuator at a specific position near the lesion, resect the tissue through the cutting knife of the distal actuator, and pass the staples of the distal actuator while resecting. The compartment components are sewn together.

In existing staplers, the cutting knife of the distal actuator is usually fixedly connected to the driving part. Therefore, the cutting knife cannot be replaced when the nail cartridge assembly is replaced. Repeated use of the cutting knife will reduce the sharpness of the cutting knife. This reduces the quality of surgery and brings certain medical risks.

technical problem

The main technical problem solved by the present invention is that repeated use of the cutting knife will reduce the sharpness of the cutting knife, thereby reducing the quality of surgery and bringing about certain medical risks.

Technical solutions

In a first aspect, an embodiment provides a surgical instrument, including:

handle assembly;

A barrel assembly, the proximal end of the barrel assembly is connected to the handle assembly;

Nail cartridge assembly, the nail cartridge assembly includes a mounting base, a nail pusher, and a cutting knife. The mounting base has a plurality of mounting positions for installing suture staples. The mounting base has a tissue binding surface for contacting with tissue. ; The nail pushing member is movably arranged on the mounting base, the cutting knife is movably connected to the mounting base, and the nail pushing member and the cutting knife can move from the proximal end of the mounting base to the The distal end of the mounting base; and the cutting knife can move in a motion plane that is not parallel to the tissue joining surface, so that the cutting knife switches between the first state and the second state, and the cutting knife cuts in the first state. The distance between the cutting edge of the knife and the tissue joining surface is greater than the distance between the cutting edge of the cutting knife and the tissue joining surface in the second state;

and an actuator assembly, the distal end of the barrel assembly is connected to the actuator assembly, the actuator assembly includes a first jaw and a second jaw, the first jaw is movably connected to the second jaw , the first jaw and the second jaw can move relatively to achieve closing and opening; an installation cavity is formed between the first jaw and the second jaw, and the nail cartridge assembly is arranged in the installation cavity in vivo.

In one embodiment, the movement plane of the cutting knife is perpendicular to the tissue joining surface.

In one embodiment, the cutting blade is rotatably mounted on the mounting base, and the cutting blade can rotate in a first direction relative to the mounting base, so that the cutting blade switches from the second state to the first state. , and rotate in the second direction relative to the mounting base to switch from the first state to the second state away from the cutting blade.

In one embodiment, the nail cartridge assembly further includes a rotating shaft member, the rotating shaft member is perpendicular to the motion plane, and the cutting blade is rotatably connected to the rotating shaft member.

In one embodiment, the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can move from the proximal end of the mounting base to the distal end of the mounting base. , the cutting knife is rotatably connected to the support.

In one embodiment, the support and the nail pushing member are of an integrated structure.

In one embodiment, the cutting blade is rotatably connected to the nail pushing member.

In one embodiment, the barrel assembly includes a transmission mechanism, the transmission mechanism has a first contact part and a second contact part, and when the transmission mechanism moves toward the distal end of the actuator assembly, the first contact part The contact portion can drive the cutting blade to switch from the second state to the first state, and drive the nail pushing member and the cutting blade to move from the proximal end of the mounting base to the distal end of the mounting base; the transmission mechanism When moving toward the proximal end of the actuator assembly, the second contact portion can drive the cutting blade to switch from the first state to the second state.

In one embodiment, the cutting knife has a blade side and a back side arranged oppositely, the first contact part is used to contact the back side of the cutting knife, and one end of the second contact part is connected to the back side of the cutting knife. The other end of the first contact portion extends toward the distal end of the actuator assembly and forms a barb structure, and the barb structure is used to contact the cutting edge side of the cutting knife.

In one embodiment, the barrel assembly includes a transmission mechanism. When the transmission mechanism moves toward the distal end of the actuator assembly, the transmission mechanism can drive the cutting knife to switch from the second state to the first state. , and drive the nail pusher and the cutting knife to move from the proximal end of the mounting base to the distal end of the mounting base; the cutting knife can switch from the first state to the second state at the distal end of the mounting base. state.

In one embodiment, the nail cartridge assembly further includes an elastic member, the elastic member resists the cutting knife, and the elastic restoring force of the elastic member acts on the cutting knife, so that the cutting knife moves from the first One state switches to a second state and remains in said second state.

In one embodiment, the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can move from the proximal end of the mounting base to the distal end of the mounting base. , the elastic member is connected to the support.

In one embodiment, the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can move from the proximal end of the mounting base to the distal end of the mounting base. , the elastic member and the support are of an integrated structure.

In one embodiment, the elastic member is connected to the nail pushing member.

In one embodiment, the elastic member and the nail pushing member are of an integrated structure.

In one embodiment, the barrel assembly includes a transmission mechanism, and the actuator assembly has a locking portion, and the locking portion is used to lock with the transmission mechanism to prevent the transmission mechanism from moving along the actuator assembly. Axial movement; the transmission mechanism has a first unlocking part, and the nail cartridge assembly has a second unlocking part. When the nail cartridge assembly is installed in the installation cavity, the first unlocking part and the second unlocking part The unlocking part cooperates to unlock the locking part and the transmission mechanism; when the locking part and the transmission mechanism are unlocked, the transmission mechanism can drive the nail pusher and the cutting knife from the proximal end of the mounting base to the distal end. sports.

In one embodiment, the locking part conflicts with the distal end of the transmission mechanism to achieve locking with the transmission mechanism; when the nail cartridge assembly is installed in the installation cavity, the first unlocking part It contacts the second unlocking part to drive the distal end of the transmission mechanism to disengage from the locking part, thereby realizing unlocking of the transmission mechanism.

In one embodiment, the first unlocking portion is configured as a protruding portion extending toward the nail cartridge assembly, the second unlocking portion is configured as an unlocking block, the protruding portion has a first unlocking guide surface, and the unlocking portion The block has a second unlocking guide surface; when the protruding portion abuts against the unlocking block, the first unlocking guide surface contacts the second unlocking guide surface to drive the transmission mechanism away from the locking portion.

In one embodiment, the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can move from the proximal end of the mounting base to the distal end of the mounting base. , the second unlocking part is provided on the support.

In one embodiment, the second unlocking portion is provided on the nail pushing member.

In a second aspect, an embodiment provides a surgical instrument, including:

handle assembly;

A barrel assembly, the proximal end of the barrel assembly is connected to the handle assembly, the barrel assembly includes a transmission mechanism;

and an actuator assembly, the distal end of the barrel assembly is connected to the actuator assembly, the actuator assembly includes a first jaw and a second jaw, the first jaw is movably connected to the second jaw , the first jaw and the second jaw can move relative to achieve closing and opening; an installation cavity is formed between the first jaw and the second jaw, and the installation cavity is used to install the nail cartridge assembly , the distal end of the transmission mechanism extends into the installation cavity;

When the transmission mechanism moves toward the distal end of the actuator assembly, it is used to drive the cutting knife of the nail cartridge assembly to switch from the second state to the first state, and drive the nail pusher and the cutting knife of the nail cartridge assembly to switch from the second state to the first state. The proximal end of the mounting seat of the nail bin assembly moves to the distal end of the mounting seat; when the transmission mechanism moves to the proximal end of the actuator assembly, the cutting knife used to drive the nail bin assembly moves in a direction that is not parallel to the nail bin assembly. The tissue bonding surface moves within the motion plane to switch the cutting knife from the first state to the second state. In the first state, the distance between the cutting edge of the cutting knife and the tissue bonding surface of the staple cartridge assembly is greater than the In the second state, the cutting edge of the cutting knife is higher than the tissue binding surface of the nail cartridge assembly.

In one embodiment, the transmission mechanism has a first contact part and a second contact part. When the transmission mechanism moves toward the distal end of the actuator assembly, the first contact part can drive the cutting of the staple cartridge assembly. The knife switches from the second state to the first state, and drives the nail pushing member and the cutting knife to move from the proximal end of the mounting base to the distal end of the mounting base; the transmission mechanism moves toward the actuator assembly. When the proximal end moves, the second contact portion can drive the cutting blade to move within the motion plane, so that the cutting blade switches from the first state to the second state.

In one embodiment, the first contact part is used to contact the back side of the cutting knife, one end of the second contact part is connected to the first contact part, and the other end is toward the distal end of the actuator assembly. Extend and form a barb structure for contacting the cutting edge side of the cutting knife.

In a third aspect, an embodiment provides a nail cartridge assembly, including:

A mounting base, the mounting base has a plurality of mounting positions for installing suture staples, and the mounting base has a tissue binding surface for contacting with tissue;

A nail pusher, which is movably arranged on the mounting base;

And a cutting knife, the cutting knife is movably connected with the mounting base, the nail pushing member and the cutting knife can move from the proximal end of the mounting base to the distal end of the mounting base; and the cutting knife Able to move in a motion plane that is not parallel to the tissue bonding surface, so that the cutting knife switches between a first state and a second state, and in the first state, the cutting edge of the cutting knife is higher than the distance between the tissue bonding surface It is greater than the distance between the cutting edge of the cutting knife and the tissue joining surface in the second state.

In one embodiment, the cutting blade is rotatably mounted on the mounting base, and the cutting blade can rotate in a first direction relative to the mounting base, so that the cutting blade protrudes from the tissue joining surface, and rotate in a second direction relative to the mounting base to move away from the cutting blade and below the tissue joining surface.

In one embodiment, a rotating shaft member is further included, the rotating shaft member is perpendicular to the motion plane, and the cutting knife is rotatably connected to the rotating shaft member.

In one embodiment, the cutting blade can be switched from the first state to the second state at the distal end of the mounting base.

In one embodiment, the elastic member is connected to the nail pushing member.

In a fourth aspect, an embodiment provides a surgical instrument, including:

handle assembly;

Nail cartridge assembly, the nail cartridge assembly includes a mounting base, a nail pusher, and a cutting knife. The mounting base has a plurality of mounting positions for installing suture staples. The mounting base has a tissue binding surface for contacting with tissue. ; The nail pushing member is movably arranged on the mounting base, the cutting knife is movably connected to the mounting base, and the nail pushing member and the cutting knife can move from the proximal end of the mounting base to the The distal end of the mounting base; and the cutting knife can move in a motion plane that is not parallel to the tissue binding surface, so that the cutting knife switches from the first state to the second state, and the cutting knife in the first state The distance between the cutting edge and the tissue joining surface is greater than the distance between the cutting edge of the cutting knife and the tissue joining surface in the second state;

In a fifth aspect, an embodiment provides a nail cartridge assembly, including:

A nail pusher, which is movably arranged on the mounting base;

And a cutting knife, the cutting knife is movably connected with the mounting base, the nail pushing member and the cutting knife can move from the proximal end of the mounting base to the distal end of the mounting base; and the cutting knife Able to move in a motion plane that is not parallel to the tissue joining surface, so that the cutting knife switches from a first state to a second state. In the first state, the cutting edge of the cutting knife is higher than the distance between the tissue joining surface. It is greater than the distance between the cutting edge of the cutting knife and the tissue joining surface in the second state.

According to the surgical instrument and staple cartridge assembly of the above embodiments, the surgical instrument includes a handle assembly, a barrel assembly, a staple cartridge assembly and an actuator assembly. The proximal end of the barrel assembly is connected to the handle assembly.

The nail cartridge assembly includes a mounting base, a nail pusher, and a cutting knife. The mounting base has a plurality of mounting positions for installing suture staples. The mounting base has a tissue binding surface for contacting with tissue. The nail pusher is movably arranged on the mounting base, the cutting blade is movably connected to the mounting base, and the nail pusher and the cutting blade can move from the proximal end of the mounting base to the far end of the mounting base. And the cutting knife can move in a motion plane that is not parallel to the tissue joining surface, so that the cutting knife switches between the first state and the second state. In the first state, the distance between the cutting edge of the cutting knife and the tissue joining surface is greater than In the second state, the cutting edge of the cutting knife is higher than the tissue joining surface. The distal end of the barrel assembly is connected to the actuator assembly. The actuator assembly includes a first jaw and a second jaw. The first jaw and the second jaw are movably connected. The first jaw and the second jaw can move relative to each other. to achieve closing and opening. An installation cavity is formed between the first jaw and the second jaw, and the nail cartridge assembly is arranged in the installation cavity. On the one hand, since the cutting knife is arranged on the mounting seat of the nail cartridge assembly, when the operator replaces the mounting seat of the nail cartridge assembly, the cutting knife can be replaced simultaneously, thereby effectively avoiding the sharpness of the cutting knife caused by repeated use. reduce the problem. On the other hand, since the cutting knife can switch between the first state and the second state, when performing the work of cutting tissue, the cutting knife can be switched to the first state to achieve cutting of the tissue. After completing the tissue cutting work, the cutting knife can be switched to the second state, thereby reducing the possibility of the cutting knife edge injuring the operator.

Description of drawings

Figure 1 is a schematic structural diagram of a surgical instrument in an embodiment of the present application;

Figure 2 is a schematic structural diagram of a three-dimensional view of the nail cartridge assembly in an embodiment of the present application;

Figure 3 is a side view of the nail cartridge assembly in an embodiment of the present application;

Figure 4 is a cross-sectional view of the nail cartridge assembly in an embodiment of the present application;

Figure 5 is a schematic structural diagram of the nail cartridge assembly installed on the actuator assembly in one embodiment of the present application;

Figure 6 is a cross-sectional view of the nail cartridge assembly installed on the actuator assembly in one embodiment of the present application;

Figure 7 is a schematic diagram of the cooperation between the cutting blade and the transmission mechanism at the proximal end of the actuator assembly in one embodiment of the present application;

Figure 8 is a schematic diagram of the transmission mechanism driving the cutting blade to move to the far end of the actuator assembly in an embodiment of the present application;

Figure 9 is a schematic diagram of the transmission mechanism driving the cutting knife to hide when it moves toward the proximal end of the actuator assembly in an embodiment of the present application;

Figure 10 is a schematic structural diagram of the nail cartridge assembly installed on the actuator assembly when the cutting knife is hidden in an embodiment of the present application;

Figure 11 is a cross-sectional view of the nail cartridge assembly installed on the actuator assembly when the cutting knife is hidden in an embodiment of the present application;

Figure 12 is an exploded view of the actuator assembly and the nail cartridge assembly in one embodiment of the present application;

Figure 13 is an exploded view of the nail pusher, support, cutting knife and transmission mechanism in one embodiment of the present application;

Figure 14 is a schematic structural diagram of a nail pusher, an elastic member and a cutting knife in an embodiment of the present application;

Figure 15 is a schematic cross-sectional view of a nail pusher, a support, an elastic member and a cutting knife in an embodiment of the present application;

Reference signs: 100. Handle assembly; 110. Fixed handle; 120. Movable handle; 200. Barrel assembly; 210. Transmission mechanism; 211. First contact part; 212. Second contact part; 213. First unlocking part ; 2131. Protruding portion; 2132. First unlocking guide surface; 300. Actuator assembly; 310. First jaw; 320. Second jaw; 330. Locking portion; 400. Nail cartridge assembly; 410. Mounting seat ; 411. Installation position; 412. Tissue joint surface; 420. Push nail piece; 430. Cutting knife; 431. Blade side; 432. Knife back side; 440. Rotating shaft piece; 450. Support; 460. Elastic piece; 470 , the second unlocking part; 471, the unlocking block; 472, the second unlocking guide surface.

Embodiments of the invention

The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments use associated similar element numbers. In the following embodiments, many details are described in order to make the present application better understood. However, those skilled in the art can readily recognize that some of the features may be omitted in different situations, or may be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is difficult to describe these in detail. The relevant operations are not necessary, and they can fully understand the relevant operations based on the descriptions in the instructions and general technical knowledge in the field.

Additionally, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. At the same time, each step or action in the method description can also be sequentially exchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the description and drawings are only for clearly describing a certain embodiment, and do not imply a necessary sequence, unless otherwise stated that a certain sequence must be followed.

The serial numbers assigned to components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The terms "connection" and "connection" mentioned in this application include direct and indirect connections (connections) unless otherwise specified.

The stapler is a commonly used surgical instrument in minimally invasive surgery. Please refer to Figure 1. The stapler usually includes a handle assembly 100, a barrel assembly 200 and an actuator assembly 300. The barrel assembly 200 includes a closing transmission chain and a firing transmission chain. The handle assembly 100 includes a fixed handle 110 and a movable handle 120.

When operating the stapler, the operator can hold the fixed handle 110 and extend the actuator assembly 300 into the lesion site in the human body through the slender barrel assembly 200. The closing transmission chain is then triggered by the movable handle, so that the jaws of the actuator assembly 300 are closed and clamped at a specific position near the lesion. Then, the firing transmission chain is triggered by the movable handle 120, so that the cutting knife 430 in the actuator assembly 300 cuts off the tissue, and at the same time, the tissue is sutured through the suture staples in the actuator assembly 300.

In this embodiment, the “distal end” refers to the end far away from the operator when operating the surgical instrument, and the “proximal end” refers to the end close to the operator when operating the surgical instrument. In this embodiment, "axial direction" refers to the direction of the line connecting the center of the distal end and the center of the proximal end, and "radial direction" refers to the direction perpendicular to the axial direction.

This embodiment provides a surgical instrument.

Please refer to Figures 1-15. The surgical instrument includes a handle assembly 100, a barrel assembly 200, a staple cartridge assembly 400 and an actuator assembly 300.

The proximal end of the barrel assembly 200 is connected to the handle assembly 100 . The staple cartridge assembly 400 includes a mounting base 410, a nail pusher 420, and a cutting knife 430. The mounting base 410 has a plurality of mounting positions 411 for installing suture staples. The mounting base 410 has a tissue binding surface 412 for contacting with tissue. The nail pusher 420 is movably disposed on the mounting base 410 , the cutting blade 430 is movably connected to the mounting base 410 , and the nail pusher 420 and the cutting blade 430 can move from the proximal end of the mounting base 410 to the distal end of the mounting base 410 . And the cutting knife 430 can move in a motion plane that is not parallel to the tissue bonding surface 412, so that the cutting knife 430 switches between the first state and the second state. In the first state, the cutting edge of the cutting knife 430 is higher than the tissue bonding surface. The distance between the surface 412 is greater than the distance between the cutting edge of the cutting knife 430 and the tissue combining surface 412 in the second state. The distal end of the barrel assembly 200 is connected to the actuator assembly 300. The actuator assembly 300 includes a first jaw 310 and a second jaw 320. The first jaw 310 and the second jaw 320 are movably connected. The first jaw 310 and the second jaw 320 can move relative to each other to achieve closing and opening. An installation cavity is formed between the first jaw 310 and the second jaw 320, and the nail cartridge assembly 400 is disposed in the installation cavity.

Please refer to Figures 1-11. On the one hand, since the cutting knife 430 is disposed on the mounting seat 410 of the nail cartridge assembly 400, when the operator replaces the mounting seat 410 of the nail cartridge assembly 400, the cutting blade 430 can be replaced simultaneously. This effectively avoids the problem that the sharpness of the cutting knife 430 is reduced due to repeated use. On the other hand, since the cutting blade 430 can switch between the first state and the second state, when performing the work of cutting tissue, the cutting blade 430 can be switched to the first state to achieve cutting of the tissue. After completing the tissue cutting work, the cutting knife 430 can be switched to the second state, thereby reducing the possibility of the cutting edge of the cutting knife 430 hurting the operator.

It should be noted that "the distance between the cutting edge of the cutting knife 430 and the tissue joining surface 412" refers to the length of the longest perpendicular line from the part of the cutting edge of the cutting knife 430 protruding beyond the tissue joining surface 412 to the tissue joining surface 412. . When the cutting edge of the cutting knife 430 is completely contained in the mounting base 410 and does not protrude from the tissue joining surface 412, the distance between the cutting edge of the cutting knife 430 and the tissue joining surface 412 can be regarded as zero.

The tissue binding surface 412 of the mounting base 410 refers to the side of the mounting base 410 that contacts the clamped tissue when clamping tissue. It can be understood that when suturing tissue, the suture staples are pushed out from the tissue binding surface 412 of the mounting base 410 to achieve suturing of the tissue.

It can be understood that the staple cartridge assembly 400 can be regarded as an integral part of the surgical instrument, that is, the surgical instrument includes the staple cartridge assembly 400 . The nail cartridge assembly 400 can also be regarded as an independent device used in conjunction with a surgical instrument, that is, the nail cartridge assembly 400 can be a consumable component of the surgical instrument, and the surgical instrument does not include the staple cartridge assembly 400 .

Please refer to FIGS. 1-11 . When the surgical instrument does not include the nail cartridge assembly 400 , this embodiment also provides a surgical instrument. The surgical instrument includes a handle assembly 100 , a barrel assembly 200 and an actuator assembly 300 .

The proximal end of the barrel assembly 200 is connected to the handle assembly 100, and the barrel assembly 200 includes a transmission mechanism 210. The distal end of the barrel assembly 200 is connected to the actuator assembly 300. The actuator assembly 300 includes a first jaw 310 and a second jaw 320. The first jaw 310 and the second jaw 320 are movably connected. The first jaw 310 and the second jaw 320 can move relative to each other to achieve closing and opening. An installation cavity is formed between the first jaw 310 and the second jaw 320. The installation cavity is used to install the nail cartridge assembly 400. The distal end of the transmission mechanism 210 extends into the installation cavity. When the transmission mechanism 210 moves toward the distal end of the actuator assembly 300, it is used to drive the cutting knife 430 of the nail cartridge assembly 400 to switch from the second state to the first state, and drive the nail pushing member 420 and the cutting knife 430 of the nail cartridge assembly 400. Move from the proximal end of the mounting base 410 of the nail cartridge assembly 400 to the distal end of the mounting base 410 . When the transmission mechanism 210 moves toward the proximal end of the actuator assembly 300, the cutting knife 430 used to drive the nail cartridge assembly 400 moves in a motion plane that is not parallel to the tissue binding surface 412 of the nail cartridge assembly 400, so that the cutting knife 430 moves from The first state is switched to the second state. In the first state, the distance between the cutting edge of the cutting knife 430 and the tissue bonding surface 412 of the staple cartridge assembly 400 is greater than that in the second state. The distance between tissue bonding surfaces 412.

Please refer to FIGS. 1-11 . This embodiment also provides a nail cartridge assembly 400 . The nail cartridge assembly 400 includes a mounting base 410 , a nail pusher 420 and a cutting blade 430 .

The mounting base 410 has a plurality of mounting positions 411 for installing staples, and the mounting base 410 has a tissue combining surface 412 for contacting tissue. The nail pusher 420 is movably mounted on the mounting base 410 . The cutting blade 430 is movably connected with the mounting base 410 , and the pusher 420 and the cutting blade 430 can move from the proximal end of the mounting base 410 to the distal end of the mounting base 410 . And the cutting knife 430 can move in a motion plane that is not parallel to the tissue bonding surface 412, so that the cutting knife 430 switches between the first state and the second state. In the first state, the cutting edge of the cutting knife 430 is higher than the tissue bonding surface. The distance between the surface 412 is greater than the distance between the cutting edge of the cutting knife 430 and the tissue combining surface 412 in the second state.

Referring to FIG. 4 , in one embodiment, the motion plane of the cutting knife 430 is perpendicular to the tissue joining surface 412 .

When the movement plane of the cutting knife 430 is perpendicular to the tissue joining surface 412, the component of the movement distance of the cutting knife 430's movement path in the direction perpendicular to the tissue joining surface 412 is the largest, so that the cutting knife 430 can more easily achieve the first Switch between state and second state. It should be noted that the tissue coupling surface 412 in this embodiment refers to the tissue coupling surface 412 of the mounting base 410 unless otherwise specified.

Of course, in other embodiments, the motion plane of the cutting blade 430 can also be at other angles with the tissue binding surface 412, such as a 45° angle or a 60° angle, etc., as long as the motion plane of the cutting blade 430 is not combined with the tissue. Face 412 can be parallel.

Please refer to Figure 2-11. In one embodiment, the cutting blade 430 is rotatably mounted on the mounting base 410. The cutting blade 430 can rotate in the first direction relative to the mounting base 410, so that the cutting blade 430 switches from the second state to the the first state, and the relative mounting base 410 rotates in the second direction to switch away from the cutting blade 430 from the first state to the second state.

The cutting blade 430 is switched between the first state and the second state by rotating. Specifically, the first direction is opposite to the second direction. For example, in this embodiment, the first direction is counterclockwise, and the second direction is counterclockwise. The direction is clockwise. In other embodiments, the first direction may be clockwise and the second direction may be counterclockwise.

In other embodiments, the movement mode of the cutting knife 430 in the motion plane is not limited to rotation. For example, the cutting knife 430 can be configured to move along a slope. When the cutting knife 430 moves from a low point to a high point on the slope, the cutting blade 430 cuts. The knife 430 switches from the second state to the first state. When the cutting knife 430 moves from the high position to the low position of the slope, the cutting knife 430 switches from the first state to the second state.

Please refer to Figures 13-15. In one embodiment, the nail cartridge assembly 400 further includes a rotating shaft member 440. The rotating shaft member 440 is perpendicular to the movement plane, and the cutting blade 430 is rotatably connected to the rotating shaft member 440. The rotational setting of the cutting blade 430 is achieved through the rotating shaft member 440. In other embodiments, the rotational setting of the cutting blade 430 can also be achieved through a rotating bearing, a rotating hinge or other suitable structures.

Please refer to Figures 13-15. In one embodiment, the nail cartridge assembly 400 further includes a support 450. The support 450 is movably connected to the mounting base 410. The support 450 can move from the proximal end of the mounting base 410 to the mounting base 410. At the far end, the cutting blade 430 is rotatably connected to the support 450.

The cutting blade 430 is supported by the support 450. Alternatively, the support 450 can be an integral structure with the nail pusher 420, or the support 450 can be an independent component.

Please refer to FIGS. 13-15 . In another embodiment, the cutting blade 430 is rotatably connected to the push pin member 420 . The nail pusher 420 not only plays the role of pushing out the suture nails, but also plays the role of carrying the cutting knife 430, which is beneficial to simplifying the structure of the staple cartridge assembly 400.

There are many ways to switch the cutting blade 430 between the first state and the second state. For example, the cutting blade 430 can be driven to switch between the first state and the second state through the transmission mechanism 210 of the barrel assembly 200. The cutting blade 430 can also be switched between the first state and the second state through the elastic force of the elastic member 460 .

Please refer to Figures 11-15. In one embodiment, the barrel assembly 200 includes a transmission mechanism 210. The transmission mechanism 210 has a first contact portion 211 and a second contact portion 212. The transmission mechanism 210 extends toward the distal end of the actuator assembly 300. During movement, the first contact portion 211 can drive the cutting blade 430 to switch from the second state to the first state, and drive the nail pusher 420 and the cutting blade 430 to move from the proximal end of the mounting base 410 to the distal end of the mounting base 410 . When the transmission mechanism 210 moves toward the proximal end of the actuator assembly 300, the second contact portion 212 can drive the cutting blade 430 to switch from the first state to the second state.

When the transmission mechanism 210 moves toward the distal end of the actuator assembly 300, the first contact portion 211 drives the cutting blade 430 to switch from the second state to the first state, so that the cutting blade 430 cuts tissue. When the transmission mechanism 210 moves toward the proximal end of the actuator assembly 300, the second contact portion 212 drives the cutting blade 430 to switch from the first state to the second state, so as to hide the cutting edge of the cutting blade 430 and lower the cutting blade 430. Possibility of injury to the operator.

Please refer to FIGS. 12 and 13 . In one embodiment, the cutting blade 430 has an oppositely arranged cutting edge side 431 and a blade back side 432 . The first contact portion 211 is used to contact the blade back side 432 of the cutting blade 430 . One end of the portion 212 is connected to the first contact portion 211 , and the other end extends toward the distal end of the actuator assembly 300 and forms a barb structure. The barb structure is used to contact the cutting edge side 431 of the cutting knife 430 .

When the transmission mechanism 210 moves toward the distal end of the actuator assembly 300, the first contact portion 211 contacts the back side 432 of the cutting blade 430 to push the cutting blade 430 to switch from the second state to the first state. When the transmission mechanism 210 moves toward the proximal end of the actuator assembly 300, the second contact portion 212 of the barb structure contacts the cutting edge side 431 of the cutting knife 430 to drive the cutting knife 430 to switch from the first state to the second state. The switching of the cutting blade 430 between the first state and the second state is achieved through a simple and reliable structure.

In another embodiment, the barrel assembly 200 includes a transmission mechanism 210. When the transmission mechanism 210 moves toward the distal end of the actuator assembly 300, the transmission mechanism 210 can drive the cutting blade 430 to switch from the second state to the first state, and The nail pushing member 420 and the cutting knife 430 are driven to move from the proximal end of the mounting base 410 to the distal end of the mounting base 410 . The cutting blade 430 can be switched from the first state to the second state at the distal end of the mounting base 410 .

When the cutting blade 430 completes cutting the tissue, the cutting blade 430 is usually located at the distal end of the mounting base 410. Therefore, switching the cutting blade 430 from the first state to the second state at the distal end of the mounting base 410 will not affect the The cutting knife 430 cuts tissue, and on the other hand, the possibility of the cutting knife 430 cutting the operator can be effectively reduced. Specifically, a groove or slope may be provided at the distal end of the mounting base 410. When the cutting blade 430 moves to the distal end of the mounting base 410, the cutting blade 430 may fall into the groove under the action of gravity or elastic force. Or slope the lower part to hide the cutting edge of the cutting knife 430 . It should be noted that, in one way of understanding, the distal end of the mounting base 410 may refer to the part of the mounting base 410 that exceeds the mounting position 411 for installing the suture staples in its own axial direction.

Please refer to Figures 12-15. In one embodiment, the nail cartridge assembly 400 further includes an elastic member 460. The elastic member 460 resists the cutting knife 430, and the elastic restoring force of the elastic member 460 acts on the cutting knife 430, so that the cutting knife 430 switches from the first state to the second state and remains in the second state.

On the one hand, the elastic force of the elastic member 460 can assist the cutting knife 430 to switch from the first state to the second state. On the other hand, the elastic force of the elastic member 460 can keep the cutting knife 430 in the second state, effectively preventing cutting. The knife 430 shakes under the influence of external force. Specifically, the elastic member 460 can be a torsion spring, a spring piece, or other suitable elastic structures.

Please refer to Figures 12-15. In one embodiment, the nail cartridge assembly 400 further includes a support 450. The support 450 is movably connected to the mounting base 410. The support 450 can move from the proximal end of the mounting base 410 to the mounting base 410. The distal end of the elastic member 460 is connected to the support 450 . The elastic member 460 is supported by the support 450. Alternatively, the elastic member 460 may be connected to the support 450, or the elastic member 460 and the support 450 may be an integrated structure.

In another embodiment, the elastic piece can also be carried by the nail pushing member 420. For example, the elastic member 460 can be connected to the nail pushing member 420, or the elastic member 460 and the nail pushing member 420 can be an integral structure. The elastic member 460 can be supported without adding an additional support 450, thereby simplifying the structure of the staple cartridge assembly 400.

Please refer to Figures 6 and 11-13. In one embodiment, the barrel assembly 200 includes a transmission mechanism 210, and the actuator assembly 300 has a locking portion 330. The locking portion 330 is used to lock with the transmission mechanism 210 to prevent the transmission mechanism 210. along the axial movement of the actuator assembly 300. The transmission mechanism 210 has a first unlocking part 213, and the nail cartridge assembly 400 has a second unlocking part 470. When the nail cartridge assembly 400 is installed in the installation cavity, the first unlocking part 213 cooperates with the second unlocking part 470, so that the locking part 330 Unlock the transmission mechanism 210 . When the locking part 330 and the transmission mechanism 210 are unlocked, the transmission mechanism 210 can drive the nail pusher 420 and the cutting blade 430 to move from the proximal end to the distal end of the mounting base 410 .

Since the locking portion 330 on the actuator assembly 300 is used to lock the transmission mechanism 210, and the first unlocking portion 213 on the transmission mechanism 210 and the second unlocking portion 470 on the nail cartridge assembly 400 are used to unlock the transmission mechanism 210, The insurance function can be realized by just adding features to existing parts without adding complex insurance clips and spring drive structures, which helps improve the reliability of the insurance function and prevents the insurance clip from falling into the human body after failure. risks of.

Please refer to FIGS. 6 and 11-13 . In one embodiment, the locking portion 330 conflicts with the distal end of the transmission mechanism 210 to achieve locking with the transmission mechanism 210 . When the nail cartridge assembly 400 is installed in the installation cavity, the first unlocking part 213 contacts the second unlocking part 470 to drive the distal end of the transmission mechanism 210 to disengage from the locking part 330, thereby unlocking the transmission mechanism 210.

By the locking part 330 colliding with or disengaging from the distal end of the transmission mechanism 210 , the locking part 330 and the transmission mechanism 210 are locked or unlocked. The advantage of using this locking method is that since the locking method is relatively simple and direct, it is conducive to designing the locking part 330 and the transmission mechanism 210 to be simpler, and there is no need to add additional components with complex structures, thereby increasing the number of locking and unlocking steps. Process reliability. Of course, in other embodiments, the locking method in this embodiment can also be replaced by damping locking, electromagnetic locking or other suitable locking methods.

Please refer to Figures 10-13. In one embodiment, the first unlocking portion 213 is configured as a protruding portion 2131 extending toward the nail cartridge assembly 400, the second unlocking portion 470 is configured as an unlocking block 471, and the protruding portion 2131 has a third An unlocking guide surface 2132, the unlocking block 471 has a second unlocking guide surface 472. When the protruding portion 2131 contacts the unlocking block 471 , the first unlocking guide surface 2132 contacts the second unlocking guide surface 472 to drive the transmission mechanism 210 to disengage from the locking portion 330 .

When the user installs the nail cartridge assembly 400 into the installation cavity of the actuator assembly 300, the protruding portion 2131 is driven to contact the unlocking block 471, and the first unlocking guide surface 2132 is in contact with the second unlocking guide surface 472, thereby The transmission mechanism 210 is driven to disengage from the locking portion 330 . The structure of the protruding portion 2131 and the unlocking block 471 is simple, and can be easily combined with the staple cartridge assembly 400 and the transmission mechanism 210 into an integrated structure, thereby helping to reduce assembly complexity and system risk factors caused by additional parts. In other embodiments, the protruding portion 2131 and the unlocking block 471 can also be simply replaced and deformed. For example, the positions of the protruding portion 2131 and the unlocking block 471 can be replaced, and the protruding portion 2131 can be disposed on the nail cartridge assembly 400 , the unlocking block 471 is arranged on the transmission mechanism 210 .

Please refer to Figures 12-15. In one embodiment, the nail cartridge assembly 400 further includes a support 450. The support 450 is movably connected to the mounting base 410. The support 450 can move from the proximal end of the mounting base 410 to the mounting base 410. At the far end, the second unlocking part 470 is provided on the support 450 . In other embodiments, the second unlocking portion 470 can also be provided on the nail pusher 420 .

In the above embodiments, the cutting blade 430 can switch between the first state and the second state. It can be understood that in some embodiments, the cutting blade 430 can be configured to only need to switch from the first state to the second state. , and whether the cutting blade 430 needs to switch from the second state to the first state is not limited.

For example, this embodiment also provides a surgical instrument.

The surgical instrument includes a handle assembly 100, a barrel assembly 200, a staple cartridge assembly 400, and an actuator assembly 300.

The proximal end of the barrel assembly 200 is connected to the handle assembly 100, and the barrel assembly 200 includes a transmission mechanism 210. The staple cartridge assembly 400 includes a mounting base 410, a nail pusher 420, and a cutting knife 430. The mounting base 410 has a plurality of mounting positions 411 for installing suture staples. The mounting base 410 has a tissue binding surface 412 for contacting with tissue. The nail pusher 420 is movably disposed on the mounting base 410 , the cutting blade 430 is movably connected to the mounting base 410 , and the nail pusher 420 and the cutting blade 430 can move from the proximal end of the mounting base 410 to the distal end of the mounting base 410 . And the cutting knife 430 can move in a motion plane that is not parallel to the tissue joining surface 412, so that the cutting knife 430 switches from the first state to the second state. In the first state, the cutting edge of the cutting knife 430 is higher than the tissue joining surface 412. The distance is greater than the distance between the cutting edge of the cutting knife 430 and the tissue joining surface 412 in the second state. The distal end of the barrel assembly 200 is connected to the actuator assembly 300. The actuator assembly 300 includes a first jaw 310 and a second jaw 320. The first jaw 310 and the second jaw 320 are movably connected. The first jaw 310 and the second jaw 320 can move relative to each other to achieve closing and opening. An installation cavity is formed between the first jaw 310 and the second jaw 320, and the nail cartridge assembly 400 is disposed in the installation cavity.

For another example, this embodiment also provides a nail cartridge assembly 400.

The nail cartridge assembly 400 includes a mounting base 410 , a nail pusher 420 and a cutting blade 430 .

The mounting base 410 has a plurality of mounting positions 411 for installing staples, and the mounting base 410 has a tissue combining surface 412 for contacting tissue. The nail pusher 420 is movably mounted on the mounting base 410 . The cutting blade 430 is movably connected with the mounting base 410 , and the pusher 420 and the cutting blade 430 can move from the proximal end of the mounting base 410 to the distal end of the mounting base 410 . And the cutting knife 430 can move in a motion plane that is not parallel to the tissue joining surface 412, so that the cutting knife 430 switches from the first state to the second state. In the first state, the cutting edge of the cutting knife 430 is higher than the tissue joining surface 412. The distance is greater than the distance between the cutting edge of the cutting knife 430 and the tissue joining surface 412 in the second state.

Specifically, a groove or slope may be provided at the distal end of the mounting base 410. When the cutting blade 430 moves to the distal end of the mounting base 410, the cutting blade 430 may fall into the groove under the action of gravity or elastic force. Or slope the lower part to hide the cutting edge of the cutting knife 430 . It should be noted that, in one way of understanding, the distal end of the mounting base 410 may refer to the portion of the mounting base 410 that exceeds the mounting position 411 for installing the suture staples in its own axial direction.

The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, several simple deductions, modifications or substitutions can be made based on the ideas of the present invention.

Claims

1. 1. 一种外科手术器械,其特征在于，包括：A surgical instrument, which is characterized in that it includes:

手柄组件；handle assembly;

枪管组件，所述枪管组件的近端与手柄组件连接；A barrel assembly, the proximal end of the barrel assembly is connected to the handle assembly;

钉仓组件，所述钉仓组件包括安装座、推钉件、切割刀，所述安装座具有多个用于安装缝合钉的安装位，所述安装座具有用于与组织接触的组织结合面；所述推钉件活动设置在所述安装座上，所述切割刀与所述安装座活动连接，所述推钉件和所述切割刀能够从所述安装座的近端运动至所述安装座的远端；且所述切割刀能够在不平行于所述组织结合面的运动平面内运动，以使切割刀在第一状态和第二状态之间切换，所述第一状态下切割刀的刃口高于组织结合面的距离大于所述第二状态下切割刀的刃口高于组织结合面的距离；Nail cartridge assembly, the nail cartridge assembly includes a mounting base, a nail pusher, and a cutting knife. The mounting base has a plurality of mounting positions for installing suture staples. The mounting base has a tissue binding surface for contacting with tissue. ; The nail pushing member is movably arranged on the mounting base, the cutting knife is movably connected to the mounting base, and the nail pushing member and the cutting knife can move from the proximal end of the mounting base to the The distal end of the mounting base; and the cutting knife can move in a motion plane that is not parallel to the tissue joining surface, so that the cutting knife switches between the first state and the second state, and the cutting knife cuts in the first state. The distance between the cutting edge of the knife and the tissue joining surface is greater than the distance between the cutting edge of the cutting knife and the tissue joining surface in the second state;

以及执行器组件，所述枪管组件的远端与所述执行器组件连接，所述执行器组件包括第一钳口和第二钳口，所述第一钳口与第二钳口活动连接，所述第一钳口和第二钳口能够相对运动以实现闭合和打开；所述第一钳口和第二钳口之间形成安装腔体，所述钉仓组件设置于所述安装腔体内。and an actuator assembly, the distal end of the barrel assembly is connected to the actuator assembly, the actuator assembly includes a first jaw and a second jaw, the first jaw is movably connected to the second jaw , the first jaw and the second jaw can move relatively to achieve closing and opening; an installation cavity is formed between the first jaw and the second jaw, and the nail cartridge assembly is arranged in the installation cavity in vivo.

如权利要求1所述的外科手术器械，其特征在于，所述切割刀的所述运动平面垂直于所述组织结合面。The surgical instrument of claim 1, wherein the motion plane of the cutting blade is perpendicular to the tissue joining surface.

如权利要求1所述的外科手术器械，其特征在于，所述切割刀转动设置于所述安装座上，所述切割刀能够相对所述安装座沿第一方向转动，以使所述切割刀从第二状态切换至第一状态，和相对所述安装座沿第二方向转动，以远离所述切割刀从第一状态切换至第二状态。The surgical instrument according to claim 1, wherein the cutting blade is rotatably mounted on the mounting base, and the cutting blade can rotate in a first direction relative to the mounting base, so that the cutting blade Switch from the second state to the first state, and rotate in the second direction relative to the mounting base to switch away from the cutting blade from the first state to the second state.

如权利要求3所述的外科手术器械，其特征在于，所述钉仓组件还包括转轴件，所述转轴件垂直于所述运动平面，所述切割刀与所述转轴件可转动地连接。The surgical instrument according to claim 3, wherein the nail cartridge assembly further includes a rotating shaft member, the rotating shaft member is perpendicular to the movement plane, and the cutting blade is rotatably connected to the rotating shaft member.

如权利要求3所述的外科手术器械，其特征在于，所述钉仓组件还包括支座，所述支座与所述安装座活动连接，所述支座能够从所述安装座的近端运动至所述安装座的远端，所述切割刀与所述支座转动连接。The surgical instrument according to claim 3, wherein the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can be moved from the proximal end of the mounting base. Move to the distal end of the mounting base, and the cutting blade is rotationally connected to the support.

如权利要求5所述的外科手术器械，其特征在于，所述支座与所述推钉件为一体式结构。The surgical instrument according to claim 5, wherein the support and the nail pushing member are of an integrated structure.

如权利要求3所述的外科手术器械，其特征在于，所述切割刀与所述推钉件转动连接。The surgical instrument according to claim 3, wherein the cutting blade is rotatably connected to the pusher member.

如权利要求1所述的外科手术器械，其特征在于，所述枪管组件包括传动机构，所述传动机构具有第一接触部和第二接触部，所述传动机构向所述执行器组件的远端运动时，所述第一接触部能够带动所述切割刀从第二状态切换至第一状态，并带动所述推钉件和切割刀从所述安装座的近端运动至所述安装座的远端；所述传动机构向所述执行器组件的近端运动时，所述第二接触部能够带动所述切割刀从第一状态切换至第二状态。The surgical instrument of claim 1, wherein the barrel assembly includes a transmission mechanism, the transmission mechanism has a first contact portion and a second contact portion, and the transmission mechanism directs the actuator assembly to the actuator assembly. When the distal end moves, the first contact portion can drive the cutting blade to switch from the second state to the first state, and drive the nail pusher and the cutting blade to move from the proximal end of the mounting base to the mounting base. the distal end of the seat; when the transmission mechanism moves toward the proximal end of the actuator assembly, the second contact portion can drive the cutting blade to switch from the first state to the second state.

如权利要求8所述的外科手术器械，其特征在于，所述切割刀具有相对设置的刃口侧和刀背侧，所述第一接触部用于与所述切割刀的刀背侧接触，所述第二接触部的一端连接于所述第一接触部，另一端向所述执行器组件的远端延伸，并形成倒钩结构，所述倒钩结构用于与所述切割刀的刃口侧接触。The surgical instrument according to claim 8, wherein the cutting blade has an edge side and a blade back side arranged oppositely, and the first contact portion is used to contact the blade back side of the cutting blade, and the One end of the second contact part is connected to the first contact part, and the other end extends toward the distal end of the actuator assembly and forms a barb structure, and the barb structure is used to contact the cutting edge side of the cutting knife. touch.

如权利要求1所述的外科手术器械，其特征在于，所述枪管组件包括传动机构，所述传动机构向所述执行器组件的远端运动时，所述传动机构能够带动所述切割刀从第二状态切换至第一状态，并带动所述推钉件和切割刀从所述安装座的近端运动至所述安装座的远端；所述切割刀能够在所述安装座的远端从第一状态切换至第二状态。The surgical instrument according to claim 1, wherein the barrel assembly includes a transmission mechanism, and when the transmission mechanism moves toward the distal end of the actuator assembly, the transmission mechanism can drive the cutting blade Switch from the second state to the first state, and drive the nail pushing member and the cutting knife to move from the proximal end of the mounting base to the distal end of the mounting base; the cutting knife can move at the far end of the mounting base. The terminal switches from the first state to the second state.

如权利要求1所述的外科手术器械，其特征在于，所述钉仓组件还包括弹性件，所述弹性件与所述切割刀抵触，所述弹性件的弹性回复力作用于所述切割刀，以使所述切割刀从第一状态切换至第二状态，并保持在所述第二状态。The surgical instrument according to claim 1, wherein the staple cartridge assembly further includes an elastic member, the elastic member resists the cutting knife, and the elastic restoring force of the elastic member acts on the cutting knife. , so that the cutting blade switches from the first state to the second state and remains in the second state.

如权利要求11所述的外科手术器械，其特征在于，所述钉仓组件还包括支座，所述支座与所述安装座活动连接，所述支座能够从所述安装座的近端运动至所述安装座的远端，所述弹性件连接于所述支座。The surgical instrument according to claim 11, wherein the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can be moved from the proximal end of the mounting base. Move to the distal end of the mounting base, and the elastic member is connected to the support.

如权利要求11所述的外科手术器械，其特征在于，所述钉仓组件还包括支座，所述支座与所述安装座活动连接，所述支座能够从所述安装座的近端运动至所述安装座的远端，所述弹性件与所述支座为一体式结构。The surgical instrument according to claim 11, wherein the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can be moved from the proximal end of the mounting base. Moving to the distal end of the mounting base, the elastic member and the support are an integral structure.

如权利要求11所述的外科手术器械，其特征在于，所述弹性件连接于所述推钉件。The surgical instrument according to claim 11, wherein the elastic member is connected to the pusher member.

如权利要求11所述的外科手术器械，其特征在于，所述弹性件与所述推钉件为一体式结构。The surgical instrument according to claim 11, wherein the elastic member and the pusher member are of an integrated structure.

如权利要求1-15任一项所述的外科手术器械，其特征在于, 所述枪管组件包括传动机构，所述执行器组件具有锁定部，所述锁定部用于与所述传动机构锁定，以阻止所述传动机构沿所述执行器组件的轴向运动；所述传动机构具有第一解锁部，所述钉仓组件具有第二解锁部，所述钉仓组件安装在所述安装腔体内时，所述第一解锁部与所述第二解锁部配合，以使所述锁定部与所述传动机构解锁；所述锁定部与所述传动机构解锁时，所述传动机构能够驱动推钉件和切割刀从安装座的近端向远端运动。The surgical instrument according to any one of claims 1 to 15, wherein the barrel assembly includes a transmission mechanism, the actuator assembly has a locking portion, and the locking portion is used to lock with the transmission mechanism. , to prevent the transmission mechanism from moving in the axial direction of the actuator assembly; the transmission mechanism has a first unlocking part, the nail cartridge assembly has a second unlocking part, and the nail cartridge assembly is installed in the installation cavity When inside the body, the first unlocking part cooperates with the second unlocking part to unlock the locking part and the transmission mechanism; when the locking part and the transmission mechanism are unlocked, the transmission mechanism can drive and push The stapler and cutting blade move from the proximal end to the distal end of the mount.

如权利要求16所述的外科手术器械，其特征在于，所述锁定部与所述传动机构的远端抵触，以实现与所述传动机构的锁定；所述钉仓组件安装在所述安装腔体内时，所述第一解锁部与所述第二解锁部接触，以带动所述传动机构的远端脱离所述锁定部，从而实现与所述传动机构的解锁。The surgical instrument according to claim 16, wherein the locking part conflicts with the distal end of the transmission mechanism to achieve locking with the transmission mechanism; and the nail cartridge assembly is installed in the installation cavity. When inside the body, the first unlocking part contacts the second unlocking part to drive the distal end of the transmission mechanism to disengage from the locking part, thereby achieving unlocking with the transmission mechanism.

如权利要求16所述的外科手术器械，其特征在于，所述第一解锁部配置为朝向钉仓组件延伸的凸出部，所述第二解锁部配置为解锁块，所述凸出部具有第一解锁导向面，所述解锁块具有第二解锁导向面；所述凸出部与所述解锁块抵接时，所述第一解锁导向面与第二解锁导向面接触，用以带动所述传动机构脱离所述锁定部。The surgical instrument of claim 16, wherein the first unlocking portion is configured as a protruding portion extending toward the staple cartridge assembly, the second unlocking portion is configured as an unlocking block, and the protruding portion has A first unlocking guide surface, the unlocking block has a second unlocking guide surface; when the protruding portion abuts the unlocking block, the first unlocking guide surface contacts the second unlocking guide surface to drive all The transmission mechanism is disengaged from the locking part.

如权利要求16所述的外科手术器械，其特征在于，所述钉仓组件还包括支座，所述支座与所述安装座活动连接，所述支座能够从所述安装座的近端运动至所述安装座的远端，所述第二解锁部设置于所述支座。The surgical instrument according to claim 16, wherein the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can be moved from the proximal end of the mounting base. Move to the distal end of the mounting base, and the second unlocking part is provided on the support.

如权利要求16所述的外科手术器械，其特征在于，所述第二解锁部设置于所述推钉件。The surgical instrument according to claim 16, wherein the second unlocking portion is provided on the pusher member.

一种外科手术器械，其特征在于，包括：A surgical instrument, characterized in that it includes:

手柄组件；handle assembly;

枪管组件，所述枪管组件的近端与手柄组件连接，所述枪管组件包括传动机构；A barrel assembly, the proximal end of the barrel assembly is connected to the handle assembly, the barrel assembly includes a transmission mechanism;

以及执行器组件，所述枪管组件的远端与所述执行器组件连接，所述执行器组件包括第一钳口和第二钳口，所述第一钳口与第二钳口活动连接，所述第一钳口和第二钳口能够相对运动以实现闭合和打开；所述第一钳口和第二钳口之间形成安装腔体，所述安装腔体用于安装钉仓组件，所述传动机构的远端延伸到所述安装腔体内；and an actuator assembly, the distal end of the barrel assembly is connected to the actuator assembly, the actuator assembly includes a first jaw and a second jaw, the first jaw is movably connected to the second jaw , the first jaw and the second jaw can move relative to achieve closing and opening; an installation cavity is formed between the first jaw and the second jaw, and the installation cavity is used to install the nail cartridge assembly , the distal end of the transmission mechanism extends into the installation cavity;

所述传动机构向所述执行器组件的远端运动时，用于带动钉仓组件的切割刀从第二状态切换至第一状态，并带动钉仓组件的推钉件和切割刀从所述钉仓组件的安装座的近端运动至安装座的远端；所述传动机构向所述执行器组件的近端运动时，用于带动钉仓组件的切割刀在不平行于钉仓组件的组织结合面的运动平面内运动，以使所述切割刀从第一状态切换至第二状态，所述第一状态下切割刀的刃口高于钉仓组件的组织结合面的距离大于所述第二状态下切割刀的刃口高于钉仓组件的组织结合面的距离。When the transmission mechanism moves toward the distal end of the actuator assembly, it is used to drive the cutting knife of the nail cartridge assembly to switch from the second state to the first state, and drive the nail pusher and the cutting knife of the nail cartridge assembly to switch from the second state to the first state. The proximal end of the mounting seat of the nail bin assembly moves to the distal end of the mounting seat; when the transmission mechanism moves to the proximal end of the actuator assembly, the cutting knife used to drive the nail bin assembly moves in a direction that is not parallel to the nail bin assembly. The tissue bonding surface moves within the motion plane to switch the cutting knife from the first state to the second state. In the first state, the distance between the cutting edge of the cutting knife and the tissue bonding surface of the staple cartridge assembly is greater than the In the second state, the cutting edge of the cutting knife is higher than the tissue binding surface of the nail cartridge assembly.

如权利要求21所述的外科手术器械，其特征在于，所述传动机构具有第一接触部和第二接触部，所述传动机构向所述执行器组件的远端运动时，所述第一接触部能够带动钉仓组件的切割刀从第二状态切换至第一状态，并带动所述推钉件和切割刀从所述安装座的近端运动至所述安装座的远端；所述传动机构向所述执行器组件的近端运动时，所述第二接触部能够带动所述切割刀在所述运动平面内运动，以使所述切割刀从第一状态切换至第二状态。The surgical instrument according to claim 21, wherein the transmission mechanism has a first contact part and a second contact part, and when the transmission mechanism moves toward the distal end of the actuator assembly, the first contact part The contact portion can drive the cutting blade of the nail cartridge assembly to switch from the second state to the first state, and drive the nail pushing member and the cutting blade to move from the proximal end of the mounting base to the distal end of the mounting base; When the transmission mechanism moves toward the proximal end of the actuator assembly, the second contact portion can drive the cutting blade to move within the motion plane, so that the cutting blade switches from the first state to the second state.

如权利要求22所述的外科手术器械，其特征在于，所述第一接触部用于与切割刀的刀背侧接触，所述第二接触部的一端连接于所述第一接触部，另一端向所述执行器组件的远端延伸，并形成倒钩结构，所述倒钩结构用于与切割刀的刃口侧接触。The surgical instrument according to claim 22, wherein the first contact part is used to contact the back side of the cutting blade, one end of the second contact part is connected to the first contact part, and the other end is connected to the first contact part. Extends toward the distal end of the actuator assembly and forms a barb structure for contacting the cutting edge side of the cutting knife.

一种钉仓组件，其特征在于，包括：A nail cartridge assembly, which is characterized by including:

安装座，所述安装座具有多个用于安装缝合钉的安装位，所述安装座具有用于与组织接触的组织结合面；A mounting base, the mounting base has a plurality of mounting positions for installing suture staples, and the mounting base has a tissue binding surface for contacting with tissue;

推钉件，所述推钉件活动设置在所述安装座上；A nail pusher, which is movably arranged on the mounting base;

以及切割刀，所述切割刀与所述安装座活动连接，所述推钉件和所述切割刀能够从所述安装座的近端运动至所述安装座的远端；且所述切割刀能够在不平行于所述组织结合面的运动平面内运动，以使切割刀在第一状态和第二状态之间切换，所述第一状态下切割刀的刃口高于组织结合面的距离大于所述第二状态下切割刀的刃口高于组织结合面的距离。And a cutting knife, the cutting knife is movably connected with the mounting base, the nail pushing member and the cutting knife can move from the proximal end of the mounting base to the distal end of the mounting base; and the cutting knife Able to move in a motion plane that is not parallel to the tissue bonding surface, so that the cutting knife switches between a first state and a second state, and in the first state, the cutting edge of the cutting knife is higher than the distance between the tissue bonding surface It is greater than the distance between the cutting edge of the cutting knife and the tissue joining surface in the second state.

如权利要求24所述的钉仓组件，其特征在于，所述切割刀的所述运动平面垂直于所述组织结合面。The staple cartridge assembly of claim 24, wherein the movement plane of the cutting blade is perpendicular to the tissue joining surface.

如权利要求24所述的钉仓组件，其特征在于，所述切割刀转动设置于所述安装座上，所述切割刀能够相对所述安装座沿第一方向转动，以使所述切割刀凸出于所述组织结合面，和相对所述安装座沿第二方向转动，以远离所述切割刀低于所述组织结合面。The nail cartridge assembly of claim 24, wherein the cutting blade is rotatably mounted on the mounting base, and the cutting blade can rotate in a first direction relative to the mounting base, so that the cutting blade protrudes from the tissue combining surface, and rotates in a second direction relative to the mounting base to be farther away from the cutting blade and lower than the tissue combining surface.

如权利要求26所述的钉仓组件，其特征在于，还包括转轴件，所述转轴件垂直于所述运动平面，所述切割刀与所述转轴件可转动地连接。The nail cartridge assembly according to claim 26, further comprising a rotating shaft member, the rotating shaft member is perpendicular to the movement plane, and the cutting blade is rotatably connected to the rotating shaft member.

如权利要求26所述的钉仓组件，其特征在于，所述钉仓组件还包括支座，所述支座与所述安装座活动连接，所述支座能够从所述安装座的近端运动至所述安装座的远端，所述切割刀与所述支座转动连接。The nail cartridge assembly according to claim 26, wherein the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can be moved from the proximal end of the mounting base. Move to the distal end of the mounting base, and the cutting blade is rotationally connected to the support.

如权利要求28所述的钉仓组件，其特征在于，所述支座与所述推钉件为一体式结构。The nail cartridge assembly according to claim 28, wherein the support and the nail pusher are an integral structure.

如权利要求26所述的钉仓组件，其特征在于，所述切割刀与所述推钉件转动连接。The nail cartridge assembly of claim 26, wherein the cutting blade is rotatably connected to the nail pushing member.

如权利要求24所述的钉仓组件，其特征在于，所述切割刀能够在所述安装座的远端从第一状态切换至第二状态。The staple cartridge assembly of claim 24, wherein the cutting blade can be switched from the first state to the second state at the distal end of the mounting base.

如权利要求24所述的钉仓组件，其特征在于，所述钉仓组件还包括弹性件，所述弹性件与所述切割刀抵触，所述弹性件的弹性回复力作用于所述切割刀，以使所述切割刀从第一状态切换至第二状态，并保持在所述第二状态。The nail cartridge assembly according to claim 24, wherein the nail cartridge assembly further includes an elastic member, the elastic member resists the cutting knife, and the elastic restoring force of the elastic member acts on the cutting knife. , so that the cutting blade switches from the first state to the second state and remains in the second state.

如权利要求32所述的钉仓组件，其特征在于，所述钉仓组件还包括支座，所述支座与所述安装座活动连接，所述支座能够从所述安装座的近端运动至所述安装座的远端，所述弹性件连接于所述支座。The nail cartridge assembly according to claim 32, wherein the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can be moved from the proximal end of the mounting base. Move to the distal end of the mounting base, and the elastic member is connected to the support.

如权利要求32所述的钉仓组件，其特征在于，所述钉仓组件还包括支座，所述支座与所述安装座活动连接，所述支座能够从所述安装座的近端运动至所述安装座的远端，所述弹性件与所述支座为一体式结构。The nail cartridge assembly according to claim 32, wherein the nail cartridge assembly further includes a support, the support is movably connected to the mounting base, and the support can be moved from the proximal end of the mounting base. Moving to the distal end of the mounting base, the elastic member and the support are an integral structure.

如权利要求32所述的钉仓组件，其特征在于，所述弹性件连接于所述推钉件。The nail cartridge assembly of claim 32, wherein the elastic member is connected to the nail pushing member.

如权利要求32所述的钉仓组件，其特征在于，所述弹性件与所述推钉件为一体式结构。The nail cartridge assembly according to claim 32, wherein the elastic member and the nail pushing member are of an integrated structure.

手柄组件；handle assembly;

钉仓组件，所述钉仓组件包括安装座、推钉件、切割刀，所述安装座具有多个用于安装缝合钉的安装位，所述安装座具有用于与组织接触的组织结合面；所述推钉件活动设置在所述安装座上，所述切割刀与所述安装座活动连接，所述推钉件和所述切割刀能够从所述安装座的近端运动至所述安装座的远端；且所述切割刀能够在不平行于所述组织结合面的运动平面内运动，以使切割刀从第一状态切换至第二状态，所述第一状态下切割刀的刃口高于组织结合面的距离大于所述第二状态下切割刀的刃口高于组织结合面的距离；Nail cartridge assembly, the nail cartridge assembly includes a mounting base, a nail pusher, and a cutting knife. The mounting base has a plurality of mounting positions for installing suture staples. The mounting base has a tissue binding surface for contacting with tissue. ; The nail pushing member is movably arranged on the mounting base, the cutting knife is movably connected to the mounting base, and the nail pushing member and the cutting knife can move from the proximal end of the mounting base to the The distal end of the mounting base; and the cutting knife can move in a motion plane that is not parallel to the tissue binding surface, so that the cutting knife switches from the first state to the second state, and the cutting knife in the first state The distance between the cutting edge and the tissue joining surface is greater than the distance between the cutting edge of the cutting knife and the tissue joining surface in the second state;

一种钉仓组件，其特征在于，包括： A nail cartridge assembly, which is characterized by including:

以及切割刀，所述切割刀与所述安装座活动连接，所述推钉件和所述切割刀能够从所述安装座的近端运动至所述安装座的远端；且所述切割刀能够在不平行于所述组织结合面的运动平面内运动，以使所述切割刀从第一状态切换至第二状态，所述第一状态下切割刀的刃口高于组织结合面的距离大于所述第二状态下切割刀的刃口高于组织结合面的距离。And a cutting knife, the cutting knife is movably connected with the mounting base, the nail pushing member and the cutting knife can move from the proximal end of the mounting base to the distal end of the mounting base; and the cutting knife Able to move in a motion plane that is not parallel to the tissue joining surface, so that the cutting knife switches from a first state to a second state. In the first state, the cutting edge of the cutting knife is higher than the distance between the tissue joining surface. It is greater than the distance between the cutting edge of the cutting knife and the tissue joining surface in the second state.