WO2024109713A1

WO2024109713A1 - Reset device and surgical operation instrument

Info

Publication number: WO2024109713A1
Application number: PCT/CN2023/132805
Authority: WO
Inventors: 王叶挺
Original assignee: 天臣国际医疗科技股份有限公司
Priority date: 2022-11-23
Filing date: 2023-11-21
Publication date: 2024-05-30

Abstract

The present application provides a reset device and a surgical operation instrument. The reset device comprises a transmission component which is capable of being driven to move in an axial direction of the transmission component; an electric mechanism which is configured to provide power for the movement of the transmission component in the axial direction; a transmission mechanism which is connected to the electric mechanism and the transmission component in a first state, and detached from the electric mechanism in a second state; a first operation mechanism which is configured to be operable to drive the transmission mechanism to switch to the second state from the first state; and a second operation mechanism which is configured to be operable to drive the transmission component to move in the axial direction of the transmission component when the transmission mechanism is in the second state. According to the present application, the transmission mechanism can be detached from the electric mechanism by means of the first operation mechanism, and the transmission component can be driven to move by means of the second operation mechanism to realized manual return and reset.

Description

Reduction device and surgical instrument

Technical Field

The present application relates to the technical field of medical devices, and in particular to a resetting device and a surgical instrument.

Background technique

In the prior art, when some surgical instruments are used, the doctor needs to operate the firing mechanism at the proximal end to drive the transmission shaft to move toward the distal end, thereby driving the actuator at the distal end to perform the corresponding surgical operation. Taking the surgical stapler as an example, the existing surgical stapler includes a stapler body, a firing mechanism (such as a firing handle) movably connected to the stapler body, and a nail head that cooperates with the body. The stapler body includes a transmission component. During the operation, the tissue is placed between the anvil and the nail magazine of the nail head, and the distance between the anvil and the nail magazine is adjusted to gradually clamp the tissue, and then the transmission component is driven to move toward the distal end by operating the handle, so that the staples are formed on the anvil to complete the anastomosis of the tissue.

During use, doctors often need to apply a relatively large force to the firing mechanism to complete the operation, which is very inconvenient to use. Therefore, motor-driven surgical instruments have further emerged. The doctor only needs to start the motor and rotate the motor output shaft in a specific direction, and the transmission component can be driven by the motor to move toward the distal end. After the operation is completed, the motor output shaft can be rotated in the opposite direction, and the transmission component can be moved toward the proximal end through the electric retraction function to reset the entire instrument. However, when the motor and related mechanical and electronic components fail, the electric retraction function may fail, and the instrument cannot be reset to open the end effector jaws, so that the operation cannot proceed smoothly.

Summary of the invention

In response to the problems in the prior art, the purpose of the present application is to provide a resetting device and a surgical instrument, wherein a first operating mechanism can separate the transmission mechanism from the electric mechanism so that the transmission component is no longer affected by the electric mechanism, and a second operating mechanism can drive the transmission component to move and manually retract and reset.

The present application provides a reset device for a surgical instrument, the reset device comprising: a transmission component that can be driven to move along the axial direction of the transmission component; an electric mechanism configured to provide power for the transmission component to move axially; a transmission mechanism that connects the electric mechanism and the transmission component in a first state to transmit the power of the electric mechanism to the transmission component, and in a second state The transmission mechanism is separated from the electric mechanism; a first operating mechanism is configured to be operable to drive the transmission mechanism from the first state to the second state; and a second operating mechanism is configured to be operable to drive the transmission component to move along the axial direction of the transmission component when the transmission mechanism is in the second state.

In some embodiments, when the first operating mechanism abuts against the first surface of the transmission mechanism and can be operated to move at least partially along a first direction, the transmission mechanism is driven to move at least partially along the first direction, so that the transmission mechanism enters a second state from the first state.

In some embodiments, the transmission mechanism includes a first gear. When the transmission mechanism is in the first state, the first gear is respectively engaged with the electric mechanism and the transmission component; when the transmission mechanism is in the second state, the second operating mechanism can be operated to drive the first gear to rotate, so that the first gear drives the transmission component to move along the axial direction of the transmission component.

In some embodiments, the transmission mechanism further includes a first gear shaft passing through the interior of the first gear, the second operating mechanism is provided with a first matching portion, the first gear shaft is provided with a second matching portion, and the first matching portion and the second matching portion form a non-rotatable connection.

In some embodiments, one of the first mating portion and the second mating portion is a mating recess, and the other is a mating protrusion, and the inner surface of the mating recess and the outer surface of the mating protrusion are respectively provided with matching anti-rotation structures.

In some embodiments, the first gear shaft is further provided with a limiting portion, and when the first matching portion is connected to the second matching portion, the first matching portion at least partially abuts against the limiting portion.

In some embodiments, the second operating mechanism includes a first operating rod and a second operating rod, the first end of the first operating rod is provided with the first matching portion, and the second end of the first operating rod is rotatably connected to the second operating rod through a first pivot.

In some embodiments, a cavity is provided inside the first operating rod, and a sliding groove is provided on one side of the second operating rod. The first pivot at least partially enters the sliding groove and can move along the extension direction of the sliding groove so that the second operating rod at least partially enters the cavity of the first operating rod.

In some embodiments, the first direction is along the axial direction of the first gear shaft, and the first direction is perpendicular to the axial direction of the transmission component.

In some embodiments, the electric mechanism includes a motor and a second gear, the output shaft of the motor can drive the second gear to rotate, the output shaft of the motor is parallel to the first direction, and the second gear is at least partially located on one side of the first gear along the second direction; wherein the second direction is opposite to the first direction.

In some embodiments, the first operating mechanism includes a first switching lever and a second switching lever. The change lever is connected to the second switch lever through a second pivot, and when the second switch lever rotates around the second pivot along a third direction, the first switch lever is driven to at least partially move along the first direction.

In some embodiments, a width of the first switch bar is smaller than a width of the second switch bar.

In some embodiments, the transmission mechanism further includes a switching fitting, the switching fitting is disposed on one side of the end surface of the first gear, and a side surface of the switching fitting facing away from the first gear is the first surface.

An embodiment of the present application also provides a surgical instrument, comprising the above-mentioned resetting device.

In some embodiments, it further comprises a housing, wherein the transmission component and the transmission mechanism are at least partially located in the housing;

The shell comprises a containing cavity, one end of which is open to a side surface of the shell, and the second operating mechanism can be at least partially placed in the containing cavity.

The present application also provides a surgical instrument, comprising the above-mentioned resetting device.

The reduction device and surgical instrument provided by the present application have the following advantages:

By adopting the present application, when the transmission component needs to be manually reset, the transmission mechanism can be separated from the electric mechanism by the first operating mechanism, and the transmission component can be driven to move and retract and reset by the second operating mechanism. Even if the retraction function of the electric mechanism fails, the transmission component can be manually driven to reset. The reset device can be applied to surgical staplers or other types of surgical instruments.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

FIG1 is a schematic structural diagram of a reset device according to an embodiment of the present application;

2 and 3 are schematic diagrams of a reset device after the shell is removed according to an embodiment of the present application;

FIG4 is a schematic diagram of the cooperation between a transmission mechanism, a transmission component and a first operating mechanism according to an embodiment of the present application;

5 is a schematic diagram of the cooperation between a transmission mechanism, a transmission component and a first operating rod according to an embodiment of the present application;

6 is a schematic diagram of the cooperation between a transmission mechanism, a transmission component, a first operating rod and a second operating mechanism according to an embodiment of the present application;

FIG7 is a schematic structural diagram of a second operating lever mechanism according to an embodiment of the present application;

FIG8 is a front view of the reset device after the housing is removed according to an embodiment of the present application, and the transmission mechanism is in the first state;

FIG9 is a front view of the reset device after the housing is removed according to an embodiment of the present application, and the transmission mechanism is in the second state state;

10 is a schematic diagram of the cooperation between a transmission mechanism, a transmission component and a second operating mechanism according to an embodiment of the present application;

FIG11 is a schematic structural diagram of a second operating mechanism according to an embodiment of the present application;

FIG12 is an exploded view of a second operating mechanism according to an embodiment of the present application;

FIG13 is a schematic diagram of a second operating rod during storage according to an embodiment of the present application;

FIG14 is a schematic diagram of a second operating lever when it is stored according to an embodiment of the present application;

FIG. 15 is a schematic diagram of a second operating mechanism housed in a housing according to an embodiment of the present application.

Reference numerals:
1 Housing 33 Second pivot
11 First opening 34 Third pivot
13 Second opening 4 Transmission mechanism
14 Accommodating cavity 41 First gear
2 Second operating mechanism 42 First gear shaft
21 first operating rod 421 second matching portion
211 first matching portion 422 limiting portion
212 Cavity 43 Switching fitting
22 second operating rod 44 elastic member
221 Slide 5 Electric mechanism
23 First pivot 51 Motor
3 First operating mechanism 52 Second gear
31 First switching lever 6 Transmission component
32 Second switching lever 61 Tooth surface

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated descriptions will be omitted. "Or" and "or" in the specification may both mean "and" or "or". Although the terms "above", "below", "between", etc. may be used in this specification to describe different exemplary features and elements of the present application, these terms are used herein The directions are for convenience only, for example, according to the example directions described in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this application. Although the terms "first", "second" or "third" are used in this specification to refer to certain features, they are only used to indicate the function and are not intended to limit the number and importance of specific features.

The present application provides a resetting device for surgical instruments and a surgical instrument including the resetting device. The surgical instrument may be a surgical stapler or other types of instruments. The surgical stapler is described in detail below. The surgical stapler includes a stapler body and a nail head located at the distal end of the stapler body. The stapler body is provided with an electric mechanism, a transmission mechanism and a transmission component. The nail head includes a nail anvil and a nail magazine arranged oppositely, and a stapler is provided in the nail magazine. When the stapler is fired, the motor drives the transmission component to move toward the distal side through the transmission mechanism to drive the distal nail head to complete the cutting and suturing execution. After the stapler is fired, the electric mechanism can drive the transmission component to move toward the proximal side through the transmission mechanism, and the transmission component is reset based on the retraction function of the electric mechanism. When the resetting function of the electric mechanism fails, the resetting device of the present application can be operated to separate the transmission mechanism from the electric mechanism through the first operating mechanism, and the transmission component can be driven to move and retract and reset through the second operating mechanism to achieve manual resetting of the transmission component.

The structure of the resetting device is described in detail below with reference to the accompanying drawings, taking a surgical stapler as an example of a surgical instrument. It is to be understood that the various drawings and the following description are only examples and are not intended to limit the scope of protection of the present application.

As shown in FIGS. 1 to 3 , in one embodiment, the resetting device comprises a housing 1, a transmission component 6, an electric mechanism 5, a transmission mechanism 4, a first operating mechanism 3 and a second operating mechanism 2. The transmission component 6 and the transmission mechanism 4 are at least partially arranged inside the housing 1. The transmission component 6 comprises a transmission shaft extending along the axial direction of the stapler, and the transmission component 6 is provided with a tooth surface 61 at a position corresponding to the transmission mechanism 4. The transmission component 6 can be driven to move along the axial direction of the transmission component 6. Specifically, when the stapler is fired, the transmission component 6 is driven to move toward the distal side of the stapler, and when the stapler is reset, the transmission component 6 is driven to move toward the proximal side of the stapler. The electric mechanism 5 is configured to provide power for the transmission component 6 to move axially. In this embodiment, the electric mechanism 5 comprises a motor 51 and a second gear 52, and the second gear 52 can be driven by the motor 51 to rotate around the output shaft of the motor 51. The transmission mechanism 4 includes a first gear 41 and a first gear shaft 42. The first gear shaft 42 is inserted into the first gear 41, and the first gear 41 can rotate along with the first gear shaft 42 around the axis of the first gear shaft 42. The axial direction of the first gear shaft 42 is parallel to the first direction, and the first direction is perpendicular to the axial direction of the transmission component 6. The output shaft of the motor 51 is parallel to the first direction.

In this application, the distal side and the proximal side are relative to the operator, and the side closer to the operator is The proximal side is the side farther from the operator, that is, the side closer to the surgical site is the distal side, and the direction along the axis of the stapler is the axial direction, that is, the direction from the distal side of the stapler to the proximal side, or from the proximal side of the stapler to the distal side. For example, in the perspective of Figure 1, the S1 direction is the direction from the distal side to the proximal side of the stapler, the S2 direction is the longitudinal direction, that is, the height direction, hereinafter referred to as the first direction, the direction opposite to the S2 direction is hereinafter referred to as the second direction, and the S3 direction is the transverse direction, that is, the width direction. In the present application, for a component, the inside and the outside are relative to its center, the side close to the center is the inside, and the side away from the center is the outside.

In this embodiment, the transmission mechanism 4 includes a first state (shown in FIG. 8 ) and a second state (shown in FIG. 9 ). In the first state, the first gear 41 simultaneously meshes with the tooth surface 61 of the transmission component 6 and the second gear 52 to transmit the power of the motor 51 to the transmission component 6. When the transmission mechanism 4 is in the second state, the first gear 41 is separated from the second gear 52, and the first gear 41 is still meshed with the transmission component 6. The movement of the transmission component 6 will not interfere with the motor 51, but the rotation of the first gear 41 can still drive the axial movement of the transmission component 6. The structures of the transmission mechanism 4 and the electric mechanism 5 are only examples. In other alternative embodiments, the transmission mechanism 4 may include a plurality of first gears 41 and/or the electric mechanism 5 may include a plurality of second gears 52. When the transmission mechanism 4 enters the second state from the first state, a first gear 41 previously meshed with the second gear 52 is separated from the second gear 52. The output shaft of the motor 51 may have a certain angle with the first direction. The first direction may not be perpendicular to the axial direction of the stapler, but may form an angle with the axial direction of the stapler, and, optionally, the angle is an acute angle.

The first operating mechanism 3 is configured to be operable to drive the transmission mechanism 4 from the first state to the second state. In this embodiment, the second gear 52 is at least partially located on one side of the first gear 41 along the second direction. When the first gear 41 is meshed with the second gear 52, the first operating mechanism 3 is operated to drive the first gear 41 to move along the first direction, and the first gear 41 is separated from the second gear 52.

As shown in Figures 3 to 7, the transmission mechanism 4 also includes a switching fitting 43 located on one side of the lower end surface of the first gear 41 and an elastic member 44 located on the upper end surface of the first gear 41, and the lower surface of the switching fitting 43 is the first surface of the transmission mechanism 4. The elastic member 44 gives the first gear 41 an elastic biasing force along the second direction. In this embodiment, a limiting portion 422 is provided at the upper end of the first gear shaft 42, and the elastic member 44 is a compression spring provided between the upper end surface of the first gear 41 and the limiting portion 422. In other alternative embodiments, the elastic member 44 may also be a tension spring provided on one side of the lower end surface of the first gear 41, a spring sheet provided on the upper or lower side of the first gear 41, an elastic pad, etc. When the transmission mechanism 4 is in When the first operating mechanism 3 is in the second state and is no longer operated, the first gear 41 can move in the second direction under the elastic deformation restoring force of the elastic member 44, so that the transmission mechanism 4 returns to the first state. The first operating mechanism 3 includes a first switching rod 31 and a second switching rod 32. The first switching rod 31 is connected to the second switching rod 32 through a second pivot 33. When the second switching rod 32 rotates along the third direction around the second pivot 33, the first switching rod 31 is driven to move at least partially along the first direction. The first switching rod 31 drives the first gear 41 to move in the first direction through the switching fitting 43 and separates from the second gear 52, so that the transmission mechanism 4 enters the second state from the first state. In the perspective of Figure 3, the third direction is clockwise. As shown in Figure 7, the width of the first switching rod 31 is smaller than the width of the second switching rod 32. By increasing the width of the second switching rod 32, it can be more convenient for the user to press and operate. At least one side of the first switching lever 31 is further provided with a third pivot 34, and an arc-shaped slide rail may be correspondingly provided on the inner side of the housing 1, and the third pivot 34 is at least partially embedded in the slide rail. When the second switching lever 32 rotates along the third direction, the third pivot 34 moves in the slide rail, and the slide rail guides the movement of the first switching lever 31.

The second operating mechanism 2 is configured to be operated to drive the transmission component 6 to move along the axial direction of the transmission component 6 when the transmission mechanism 4 is in the second state. Specifically, when the transmission mechanism 4 is in the second state, the movement of the transmission mechanism 4 is no longer driven and restricted by the motor 51, and the second operating mechanism 2 can be operated to drive the first gear 41 to rotate, so that the first gear 41 drives the transmission component 6 to move along the axial direction of the transmission component 6. When the second operating mechanism 2 drives the first gear 41 to rotate in a specific direction, the first gear 41 drives the transmission component 6 to move in the proximal direction, thereby achieving the retraction and reset of the transmission component 6.

As shown in FIGS. 3 to 6, in this embodiment, the second operating mechanism 2 includes a first operating rod 21 and a second operating rod 22, wherein the first end of the first operating rod 21 is provided with the first matching portion 211, and the second end of the first operating rod 21 is rotatably connected to the second operating rod 22 via a first pivot 23. A second matching portion 421 is provided on the side of the limiting portion 422 of the first gear shaft 42 opposite to the first operating rod 21. The first matching portion 211 and the second matching portion 421 can form a non-rotatable connection. When the first operating rod 21 is rotated by operating the second operating rod 22, the first gear shaft 42 can be driven to rotate the first gear 41 through the matching of the first matching portion 211 and the second matching portion 421, and the first gear 41 drives the transmission component 6 to move along the axial direction of the stapler.

As shown in FIG. 5 and FIG. 6 , the first matching portion 211 is a matching recess, and the second matching portion 421 is a matching protrusion. The inner surface of the matching recess and the outer surface of the matching protrusion are respectively provided with matching stop knots. For example, the cross-sections of the matching recess and the matching protrusion are both polygonal. After the first operating rod 21 is combined with the first gear shaft 42, the first end surface of the first operating rod 21 abuts against the upper surface of the limiting portion 422. In another alternative embodiment, the first matching portion 211 is a matching protrusion and the second matching portion 421 is a matching recess, which also falls within the protection scope of this application.

The working principle of the reset device is described in detail below with reference to FIGS. 8 to 10 .

During the firing process of the stapler, the transmission mechanism 4 is in the first state, and the first gear 41 can transmit the power of the motor 51 to the transmission component 6. When the motor 51 is started, the motor 51 drives the transmission component 6 to move from the initial position to the firing position in the distal direction through the first gear 41, and the transmission component 6 drives the nail head to perform tissue suturing and cutting actions to achieve the firing of the stapler. After the stapler is fired, when the transmission component 6 has not been reset, the state of the reset device is shown in Figure 8. At this time, the transmission component 6 is in the firing position. The transmission mechanism 4 is still in the first state, and the first gear 41 is meshed with the tooth surface 61 of the transmission component 6 and the second gear 52 at the same time.

In the state of FIG8 , if it is necessary to manually reset the transmission component 6, it is necessary to first release the coupling between the transmission mechanism 4 and the electric mechanism 5, and then manually drive the transmission mechanism 4 to drive the transmission component 6 to retract. Specifically, first operate the second switching lever 32 to rotate the second switching lever 32 in the third direction, the second switching lever 32 drives the first switching lever 31 to move in the first direction, the first switching lever 31 drives the first gear 41 to move away from the second gear 52 through the switching matching part, the first gear 41 presses the elastic member 44 to elastically deform, the first gear 41 separates from the second gear 52, that is, the transmission mechanism 4 separates from the electric mechanism 5 and enters the second state, thereby releasing the coupling between the transmission mechanism 4 and the electric mechanism 5. The first gear 41 still remains in mesh with the tooth surface 61 of the transmission component 6. At this time, the state of the reset mechanism is shown in FIG9 and FIG10 . Then, the second operating mechanism 2 is installed to the upper end of the first gear shaft 42, so that the first matching part 211 and the second matching part 421 are interlocked, and the second operating rod 22 is operated to rotate it in a specific direction (clockwise in Figure 10). The first operating rod 21 drives the first gear 41 to rotate in a specific direction through the first gear shaft 42, and the first gear 41 drives the transmission component 6 to move toward the proximal side and retreat to reset.

In this embodiment, before manual retraction and resetting, the second operating rod 22 can be stored inside the first operating rod 21, and the second operating mechanism 2 can be stored as a whole inside the shell 1. Specifically, as shown in Figures 11 and 12, a cavity 212 is provided inside the first operating rod 21, and a slide groove 221 is provided on one side of the second operating rod 22. The first pivot 23 at least partially enters the slide groove 221 and can move along the extension direction of the slide groove 221. When the second operating mechanism 2 needs to be used, the second operating rod 22 and the first operating rod 21 are adjusted to a substantially vertical state to facilitate user operation. As shown in Figure 13, when storage is required, first adjust the second operating rod 22 to be substantially parallel to the first operating rod 21, and then adjust the second operating rod 22 to be substantially parallel to the first operating rod 21. The operating rod 22 is pushed into the interior of the first operating rod 21, and the first pivot 23 moves along the slide groove 221, so that the second operating rod 22 at least partially enters the cavity 212 of the first operating rod 21, reaching the state of Figure 14. As shown in Figure 15, the housing 1 includes a receiving cavity 14, and a second opening 13 at one end of the receiving cavity 14 is provided on a side surface of the housing 1, and the second operating mechanism 2 can be at least partially placed in the receiving cavity 14 through the second opening 13. When the second operating rod 22 is needed to be used for resetting, the second operating rod 22 is taken out of the receiving cavity 14, the second operating rod 22 is taken out of the first operating rod 21, and the angle of the second operating rod 22 relative to the first operating rod 21 is adjusted so that the second operating rod 22 is substantially perpendicular to the first operating rod 21, and the end of the first operating rod 21 provided with the first matching portion 211 is passed through the first opening 11 of the housing 1 to match with the first gear shaft 42 inside the housing 1.

The above content is a further detailed description of the present application in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be deemed to fall within the scope of protection of the present application.

Claims

A resetting device, characterized in that it is used for a surgical instrument, the resetting device comprising:

A transmission component (6) which can be driven to move along the axial direction of the transmission component (6);

An electric mechanism (5) configured to provide power for the transmission component (6) to move axially;

a transmission mechanism (4), wherein in a first state, the transmission mechanism (4) connects the electric mechanism (5) and the transmission component (6) to transmit the power of the electric mechanism (5) to the transmission component (6); and in a second state, the transmission mechanism (4) is separated from the electric mechanism (5);

A first operating mechanism (3) configured to be operable to drive the transmission mechanism (4) from the first state to the second state;

The second operating mechanism (2) is configured to be operable to drive the transmission component (6) to move along the axial direction of the transmission component (6) when the transmission mechanism (4) is in the second state.
The reset device according to claim 1, characterized in that:

When the first operating mechanism (3) abuts against the first surface of the transmission mechanism (4) and can be operated to move at least partially along a first direction, the transmission mechanism (4) is driven to move at least partially along the first direction, thereby causing the transmission mechanism (4) to enter the second state from the first state.
The reset device according to claim 2 is characterized in that the transmission mechanism (4) comprises a first gear (41); when the transmission mechanism (4) is in the first state, the first gear (41) is respectively engaged with the electric mechanism (5) and the transmission component (6); when the transmission mechanism (4) is in the second state, the second operating mechanism (2) can be operated to drive the first gear (41) to rotate, so that the first gear (41) drives the transmission component (6) to move along the axial direction of the transmission component (6).
The resetting device according to claim 3 is characterized in that the transmission mechanism (4) also includes a first gear shaft (42) passing through the interior of the first gear (41), the second operating mechanism (2) is provided with a first matching portion (211), the first gear shaft (42) is provided with a second matching portion (421), and the first matching portion (211) and the second matching portion (421) form a non-rotatable connection.
The reset device according to claim 4 is characterized in that the first gear shaft (42) is further provided with a limiting portion (422), and when the first matching portion (211) is connected to the second matching portion (421), the first matching portion (211) at least partially abuts against the limiting portion (422).
The reset device according to claim 4, characterized in that the second operating mechanism (2) comprises a first operating rod (21) and a second operating rod (22), and the first end of the first operating rod (21) is provided with the second operating rod (22). A matching portion (211), wherein the second end of the first operating rod (21) is rotatably connected to the second operating rod (22) via a first pivot (23).
The reset device according to claim 6 is characterized in that a cavity (212) is provided inside the first operating rod (21), a sliding groove (221) is provided on one side of the second operating rod (22), the first pivot (23) at least partially enters the sliding groove (221), and can move along the extension direction of the sliding groove (221), so that the second operating rod (22) at least partially enters the cavity (212) of the first operating rod (21).
The resetting device according to claim 4 is characterized in that the first direction is along the axial direction of the first gear shaft (42), and the first direction is perpendicular to the axial direction of the transmission component (6).
The reset device according to claim 8, characterized in that the electric mechanism (5) comprises a motor (51) and a second gear (52), the output shaft of the motor (51) can drive the second gear (52) to rotate, the output shaft of the motor (51) is parallel to the first direction, and the second gear (52) is at least partially located on one side of the first gear (41) along the second direction;

The second direction is opposite to the first direction.
The reset device according to claim 3 is characterized in that the first operating mechanism (3) comprises a first switching rod (31) and a second switching rod (32), the first switching rod (31) is connected to the second switching rod (32) via a second pivot (33), and when the second switching rod (32) rotates along a third direction around the second pivot (33), the first switching rod (31) is driven to move at least partially along the first direction.
The reset device according to claim 10, characterized in that a width of the first switch rod (31) is smaller than a width of the second switch rod (32).
A surgical instrument, characterized by comprising the resetting device according to any one of claims 1 to 11.
The surgical instrument according to claim 12, characterized in that it further comprises a housing, wherein the transmission component (6) and the transmission mechanism (4) are at least partially located in the housing;

The shell comprises a containing cavity, one end of which is open to a side surface of the shell, and the second operating mechanism (2) can be at least partially placed in the containing cavity.