CN218899559U

CN218899559U - Steering device and endoscope anastomat

Info

Publication number: CN218899559U
Application number: CN202222304158.0U
Authority: CN
Inventors: 黄东升; 石鸿飞; 杨铭
Original assignee: Baoma Medical Technology Wuxi Co ltd
Current assignee: Baoma Medical Technology Wuxi Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-04-25
Anticipated expiration: 2032-08-31

Abstract

The utility model relates to the technical field of medical instruments, and discloses a steering device and an endoscope anastomat, wherein the steering device comprises a steering driving component and a steering bracket, the steering driving component comprises a gear part, the steering driving component is rotationally arranged around the axis of the gear part, the steering bracket is slidingly arranged along a first direction, a rack part extending along the first direction is arranged on the bracket, the gear part is meshed with the rack part for transmission, and the steering driving component can drive the steering bracket to move along the first direction when rotating so as to drive a nail bin assembly to swing left and right to realize steering. The steering device provided by the utility model is used for driving the nail bin assembly of the endoscope anastomat to steer, the transmission resistance is smaller, the force required by steering control is reduced, and the steering operation hand feeling is improved.

Description

Steering device and endoscope anastomat

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a steering device and an endoscopic anastomat.

Background

The anastomat is equipment used in surgery to replace manual suturing, and the working principle is to separate or anastomose tissues by using titanium nails, which is similar to a stapler. The anastomat is also divided into different types of endoscopic anastomat, linear anastomat, circular anastomat, arc anastomat and the like, wherein the endoscopic anastomat has the highest use frequency because the endoscopic anastomat is frequently used in digestive organs such as gastrointestinal tracts and the like.

In order to have better operation field of vision and better operating angle in traditional operation, can set up left and right swing mechanism on the laparoscopic anastomat to realize the swing of staple cartridge subassembly in the work, and then obtain better operation field of vision and operating range, make things convenient for operation. Although the current endoscope anastomat in the market can swing back and forth, the problem that steering is too laborious is also existed.

Therefore, a steering device and a endoscopic stapler are needed to solve the above-mentioned technical problems.

Disclosure of Invention

Based on the above, the object of the present utility model is:

1. the steering device is provided, the transmission resistance is smaller, the force required by controlling steering is reduced, and the steering operation hand feeling is improved;

2. the endoscope anastomat is provided, the force required for driving the nail bin assembly to rotate is smaller, and the rotating operation hand feeling is better.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, there is provided a steering apparatus comprising:

a steering drive member including a gear portion, the steering drive member being rotatably disposed about an axis of the gear portion; and

the steering support is arranged in a sliding manner along a first direction, a rack part extending along the first direction is arranged on the support, the gear part is in meshed transmission with the rack part, and the steering driving member can drive the steering support to move along the first direction when rotating so as to drive the nail bin assembly to swing left and right to realize steering.

As an optional technical scheme of the steering device, the steering bracket is provided with a strip hole extending along the first direction, the rack part is arranged on one of long side walls of the strip hole, and the gear part is arranged in the strip hole in a penetrating manner.

As an optional technical solution of the steering device, the steering driving member further includes a limiting portion, the limiting portion is connected to an end portion of the gear portion, and the limiting portion can be pressed against the steering support to limit a distance of penetration of the gear portion into the elongated hole.

As an optional technical scheme of the steering device, the rack part is embedded in the side wall of the strip hole, and the number of teeth on the gear part is not more than the number of teeth on the rack part.

As an optional technical solution of the steering device, the steering driving member further includes a rotating shaft portion, the rotating shaft portion is disposed at one end of the gear portion, which is away from the steering bracket, and the rotating shaft portion is disposed along an axial direction of the gear portion.

As an optional technical scheme of the steering device, the steering device further comprises an upper cover body and a lower cover body, the upper cover body and the lower cover body enclose to form a containing cavity, the steering support is slidably arranged in the containing cavity along the first direction, and the rotating shaft part penetrates out of the yielding hole in the upper cover body.

As an optional technical scheme of the steering device, the steering device further comprises a rotating handle, and the rotating handle is connected with one end of the rotating shaft part penetrating out of the upper cover body.

As an optional technical scheme of the steering device, the steering shaft part is provided with a limit groove extending in the same direction with the steering shaft part, the rotary handle is provided with a mounting hole with a convex rib, the rotary handle is mounted at the end part of the steering shaft part through the mounting hole, and the convex rib is inserted into the limit groove.

As an optional technical scheme of the steering device, the steering support comprises a transmission plate, a connecting plate and a drag hook plate, the rack part is arranged on the transmission plate, one end of the connecting plate is connected with the edge of the transmission plate, the other end of the connecting plate is connected with the drag hook plate, and the drag hook plate extends towards the nail bin assembly along the first direction relative to the transmission plate.

In a second aspect, there is provided an endoscopic stapler including a cartridge assembly and a steering arrangement as described above, the steering support being movable in the first direction to urge the cartridge assembly to swing side-to-side for steering.

The beneficial effects of the utility model are as follows:

the steering device is used in the endoscope anastomat, when in use, an operator screws the steering driving component around the axis of the gear part to drive the steering bracket to move along the first direction, and when the steering bracket moves, the steering bracket drives the nail bin assembly to swing left and right so as to realize steering. Because the power transmission is realized between the steering driving component and the steering bracket through the gear-rack structure in the steering device, compared with the transmission modes such as a cam structure, the resistance is smaller, the problem of controlling steering effort is solved, and the operation handfeel is improved.

The endoscope anastomat provided by the utility model adopts the steering device to realize steering of the nail bin assembly, the steering device realizes transmission through a gear-rack structure, the resistance is smaller, the force required by steering operation is smaller, and the operation hand feeling is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a endoscopic stapler provided by the present utility model;

FIG. 2 is a schematic view of a partial structure of the endoscopic stapler provided by the present utility model (upper cover and knob are not shown);

FIG. 3 is an exploded schematic view of a steering apparatus provided by the present utility model;

FIG. 4 is a schematic view of a steering device according to the present utility model;

FIG. 5 is a lower view of the steering apparatus provided by the present utility model;

FIG. 6 is a schematic view of the steering drive member provided by the present utility model;

FIG. 7 is a lower view of the steering drive member provided by the present utility model;

FIG. 8 is a schematic view of the steering bracket according to the present utility model;

fig. 9 is a lower view of the steering bracket provided by the present utility model.

In the figure:

1. a steering drive member; 11. a gear portion; 12. a limit part; 13. a rotating shaft portion; 131. a limit groove; 132. steering pin holes;

2. a steering bracket; 21. a rack portion; 22. a slit hole; 23. a drive plate; 24. a connecting plate; 25. a hook plate;

3. an upper cover; 4. a lower cover; 5. a rotary handle;

100. a staple cartridge assembly; 200. a barrel assembly; 300. a gun body assembly; 400. a handle assembly.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The present embodiment provides a endoscopic stapler, as shown in fig. 1-3, the endoscopic stapler includes a steering device, a cartridge assembly 100, a barrel assembly 200, a gun body assembly 300 and a handle assembly 400, wherein the steering device and the cartridge assembly 100 are separately disposed at two ends of the barrel assembly 200, and are in transmission connection through a steering connecting rod (not shown in the drawings) penetrating through the barrel assembly 200, and the steering device is used for driving the cartridge assembly 100 to swing left and right relative to the barrel assembly 200 so as to realize steering.

As shown in fig. 3-5, the steering device provided in this embodiment includes a steering driving member 1 and a steering bracket 2, where the steering driving member 1 includes a gear portion 11, the steering driving member 1 is rotatably disposed around an axis of the gear portion 11, the steering bracket 2 is slidably disposed along a first direction, a rack portion 21 extending along the first direction is disposed on the bracket, the gear portion 11 is engaged with the rack portion 21 to drive, and when the steering driving member 1 rotates, the steering bracket 2 can be driven to move along the first direction.

Specifically, referring to fig. 3-5, 8 and 9, the steering bracket 2 includes a driving plate 23, a connecting plate 24 and a pulling hook plate 25, the rack portion 21 is disposed on the driving plate 23, one end of the connecting plate 24 is connected to an edge of the driving plate 23, the other end of the connecting plate 24 is connected to the pulling hook plate 25, and the pulling hook plate 25 extends toward the cartridge assembly 100 along a first direction relative to the driving plate 23. One end of the steering connecting rod is provided with a square hole, the hook plate 25 is clamped in the square hole, and the other end of the steering connecting rod is provided with a connecting rod draw hook which is rotationally connected with the nail bin assembly 100. When the steering bracket 2 moves along the first direction, the steering connecting rod is driven to move along the first direction, and the connecting rod drag hook is driven to move back and forth, so that the nail bin assembly 100 is driven to swing left and right to realize steering.

Specifically, the steering device provided in this embodiment is used in an endoscopic stapler, when in use, an operator screws the steering driving member 1 around the axis of the gear portion 11 to drive the steering bracket 2 to move along the first direction, and when the steering bracket 2 moves, the steering bracket drives the cartridge assembly 100 to swing left and right to realize steering. Because the power transmission is realized between the steering driving component 1 and the steering bracket 2 in the steering device through a gear-rack structure, compared with the transmission mode adopting a cam structure and the like, the resistance is smaller, the problem of laborious steering control is solved, and the operation handfeel is improved.

The endoscope anastomat adopts the steering device to realize steering of the nail bin assembly 100, the steering device realizes transmission through a gear rack structure, the resistance is smaller, the force required by steering operation is smaller, and the operation hand feeling is better.

Optionally, the rack portion 21 is embedded in the sidewall of the elongated hole 22, and the number of teeth on the gear portion 11 does not exceed the number of teeth on the rack portion 21, so that interference between the gear portion 11 and the sidewall of the elongated hole 22 is avoided, and the risk of mechanical damage is avoided. In this embodiment, the number of teeth on the gear portion 11 is equal to the number of teeth on the rack portion 21, and two limit points at which the gear portion 11 is drivingly connected to the rack portion 21 correspond to two limit points at which the cartridge assembly 100 swings left and right.

Alternatively, as shown in fig. 3-5, 8 and 9, the steering bracket 2 is provided with a long hole 22 extending along the first direction, the long hole 22 is formed on the driving plate 23, the rack portion 21 is disposed on one of long side walls of the long hole 22, and the gear portion 11 is disposed through the long hole 22. The arrangement of the long hole 22 can play a limiting role on the horizontal direction of the gear portion 11, and can reduce the space occupation of the whole steering device in the height direction, thereby improving the compactness of the whole structure.

In other embodiments of the present utility model, the rack portion 21 may be provided in a boss-like structure protruding from the transmission plate 23, and the function of converting the rotational movement of the steering drive member 1 into the linear movement of the steering bracket 2 can be similarly achieved.

Correspondingly, referring to fig. 3-7, the steering driving member 1 further includes a limiting portion 12, the limiting portion 12 is connected to an end portion of the gear portion 11, and the limiting portion 12 can be pressed against the steering bracket 2 to limit a distance of the gear portion 11 penetrating into the elongated hole 22, so as to control an installation height between the steering driving member 1 and the steering bracket 2.

Specifically, referring to fig. 6 and 7, the limiting portion 12 is configured as a disc-shaped structure, and has a yielding groove formed in the body and a yielding step formed at the bottom edge thereof, wherein the yielding groove and the yielding step are used for providing yielding for mechanical structures other than the steering device.

Further, referring to fig. 3-7, the steering driving member 1 further includes a rotating shaft portion 13, the rotating shaft portion 13 is disposed at one end of the gear portion 11 away from the steering bracket 2, and specifically disposed at one end of the limiting portion 12 away from the gear portion 11, the rotating shaft portion 13 is disposed along an axial direction of the gear portion 11, and an operator drives the steering driving member 1 to rotate through the rotating shaft portion 13.

As shown in fig. 1-3, the steering device further includes an upper cover body 3, a lower cover body 4 and a rotating handle 5, the upper cover body 3 and the lower cover body 4 enclose to form a containing cavity, the steering bracket 2 is slidably arranged in the containing cavity along a first direction, the rotating shaft portion 13 penetrates out of a yielding hole on the upper cover body 3, the rotating handle 5 is connected with one end of the rotating shaft portion 13 penetrating out of the upper cover body 3, and an operator drives the rotating shaft portion 13 to rotate through the rotating handle 5.

Specifically, the rotating shaft portion 13 is provided with a limiting groove 131 extending in the same direction, the rotating handle 5 is correspondingly provided with a mounting hole with a convex edge, the rotating handle 5 is mounted at the end of the rotating shaft portion 13 through the mounting hole, the convex edge is inserted into the limiting groove 131, and guiding and limiting effects are provided for mounting between the rotating handle 5 and the rotating shaft portion 13. The rotation shaft portion 13 is further provided with a steering pin hole 132, and after the rotation shaft portion 13 is fitted into the mounting hole of the rotation handle 5, the rotation handle 5 is fixedly connected to the rotation shaft portion 13 of the steering drive member 1 by a pin penetrating through the steering pin hole 132.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. Steering apparatus, characterized in that it comprises:

a steering drive member (1) including a gear portion (11), the steering drive member (1) being rotatably disposed about an axis of the gear portion (11); and

the steering support (2) is arranged in a sliding manner along a first direction, a rack part (21) extending along the first direction is arranged on the support, the gear part (11) is in meshed transmission with the rack part (21), and the steering support (2) can be driven to move along the first direction when the steering driving member (1) rotates so as to drive the nail bin assembly (100) to swing left and right to realize steering.

2. Steering device according to claim 1, wherein the steering bracket (2) is provided with a long hole (22) extending in the first direction, the rack portion (21) is provided on one of the long side walls of the long hole (22), and the gear portion (11) is provided through the long hole (22).

3. Steering device according to claim 2, wherein the steering drive member (1) further comprises a limit portion (12), the limit portion (12) being connected to an end of the gear portion (11), the limit portion (12) being compressible against the steering bracket (2) to define a distance of penetration of the gear portion (11) into the elongated hole (22).

4. Steering device according to claim 2, wherein the rack portion (21) is embedded in a side wall of the elongated hole (22), and the number of teeth on the gear portion (11) does not exceed the number of teeth on the rack portion (21).

5. Steering device according to claim 1, wherein the steering drive member (1) further comprises a rotating shaft portion (13), the rotating shaft portion (13) being provided at an end of the gear portion (11) facing away from the steering bracket (2), the rotating shaft portion (13) being provided in an axial direction of the gear portion (11).

6. The steering device according to claim 5, further comprising an upper cover body (3) and a lower cover body (4), wherein the upper cover body (3) and the lower cover body (4) enclose to form a containing cavity, the steering bracket (2) is slidably arranged in the containing cavity along the first direction, and the rotating shaft portion (13) penetrates out from a yielding hole in the upper cover body (3).

7. Steering device according to claim 6, characterized in that it further comprises a knob (5), said knob (5) being connected to one end of said shaft portion (13) which protrudes out of said upper cover (3).

8. The steering device according to claim 7, wherein the shaft portion (13) is provided with a limiting groove (131) extending in the same direction, the knob (5) is provided with a mounting hole with a rib, the knob (5) is mounted at the end portion of the shaft portion (13) through the mounting hole, and the rib is inserted into the limiting groove (131).

9. Steering device according to claim 1, characterized in that the steering bracket (2) comprises a transmission plate (23), a connecting plate (24) and a pulling hook plate (25), the rack part (21) is arranged on the transmission plate (23), one end of the connecting plate (24) is connected with the edge of the transmission plate (23), the other end of the connecting plate (24) is connected with the pulling hook plate (25), and the pulling hook plate (25) protrudes towards the cartridge assembly (100) along the first direction relative to the transmission plate (23).

10. The endoscopic stapler is characterized by comprising a staple cartridge assembly (100) and a steering device according to any one of claims 1-9, wherein the steering bracket (2) can move along the first direction to drive the staple cartridge assembly (100) to swing left and right to realize steering.