CN215458312U

CN215458312U - Trigger mechanism of arc-shaped anastomat and arc-shaped anastomat

Info

Publication number: CN215458312U
Application number: CN202120819059.9U
Authority: CN
Inventors: 谢明杰
Original assignee: Changzhou Zhiye Medical Devices Institute Co ltd
Current assignee: Changzhou Zhiye Medical Devices Institute Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-01-11
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a firing mechanism of an arc-shaped anastomat and the arc-shaped anastomat, wherein the firing mechanism of the arc-shaped anastomat comprises a push rod and a firing handle hinged to the lower part of a handle seat of the anastomat, one end of the push rod is fixedly connected with a nail pushing assembly of the anastomat, and the other end of the push rod is arranged in the handle seat of the anastomat and connected with a pressing assembly of the anastomat; the firing handle is suitable for driving the push rod to push the nail pushing assembly to move forwards along the horizontal direction. The utility model realizes the forward movement of the nail pushing component fixed at the end part of the push rod by arranging the triggering handle to drive the push rod to move forward, completes the triggering of the anastomat, and has simple structure, convenient operation and stable triggering.

Description

Trigger mechanism of arc-shaped anastomat and arc-shaped anastomat

Technical Field

The utility model relates to the field of medical instruments, in particular to a firing mechanism of an arc-shaped anastomat and the arc-shaped anastomat.

Background

Staplers are devices used in medicine to replace manual suturing, the main working principle being the detachment or anastomosis of tissue by titanium staples, similar to staplers. According to different application ranges, the main components of the anastomat can be divided into a skin anastomat, a digestive tract anastomat, a rectal anastomat, a circular hemorrhoid anastomat, a circumcision anastomat, a blood vessel anastomat, a hernia anastomat, a lung cutting and suturing instrument and the like.

At present, the arc-shaped anastomat is commonly adopted in the market for the cutting and suturing operation of the low rectum, and compared with the traditional manual suturing operation, the suturing operation of the anastomat has the following advantages: 1. the operation is simple and convenient, and the operation time is saved; 2. the disposable is used for one time, so that cross infection is avoided; the titanium nails are tightly sewed and have moderate tightness; 3. has few side effects and can effectively reduce the surgical complications and the like. However, the existing arc anastomat firing mechanism on the market is complex in structure and needs to be optimized as much as possible.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a firing mechanism of an arc-shaped anastomat and the arc-shaped anastomat aiming at the defects of the prior art, wherein the firing mechanism is simpler in structure, convenient to operate and strong in stability.

The technical scheme for realizing the aim of the utility model is as follows:

the utility model provides a firing mechanism of arc anastomat which characterized in that: the stapler comprises a push rod and a firing handle hinged to the lower portion of a handle seat of the stapler, wherein one end of the push rod is fixedly connected with a nail pushing assembly of the stapler, and the other end of the push rod is arranged in the handle seat of the stapler and connected with a pressing assembly of the stapler; the firing handle is suitable for driving the push rod to push the nail pushing assembly to move forwards along the horizontal direction.

Furthermore, one end of the push rod is provided with a hook, the push rod is fixedly connected with a nail pushing assembly of the anastomat through the hook, the connection is firm, and the assembly is simple.

Further, the other end of push rod is equipped with the arc notch, the upper end of percussion handle be equipped with arc notch assorted convex part, when holding down percussion handle, the convex part is suitable for the card to be gone into in the arc notch and realizes that percussion handle and push rod are connected to the realization percussion handle drives the push rod and removes.

Furthermore, a first limiting groove and a second limiting groove are sequentially arranged on the push rod from left to right.

Furthermore, the other end of the push rod is also provided with a first connecting part, a spring is arranged on the first connecting part, the push rod is connected with a pressing component of the anastomat through the spring, when the anastomat is triggered, the spring is stretched, and after the triggering is completed, the push rod is rapidly pulled back under the elastic force action of the spring to complete the resetting.

Further, still be equipped with the torsional spring between the handle seat of percussion handle and anastomat, the torsional spring is equipped with the shell fragment of outside extension, be equipped with spacing post on the push rod, the lower part of shell fragment and spacing post contacts for the percussion handle keeps the open mode under no exogenic action, after loosening the percussion handle, under the elastic force effect of shell fragment, the percussion handle also can reset rapidly.

An arc anastomat comprises the firing mechanism, and is simple in structure, convenient to operate and high in stability.

By adopting the technical scheme, the utility model has the following beneficial effects:

(1) according to the trigger mechanism, the trigger handle is arranged to drive the push rod to move forwards, so that the nail pushing assembly fixed at the end of the push rod moves forwards, the trigger of the anastomat is completed, the structure is simple, the operation is convenient, and the trigger is stable.

(2) The end part of one end of the push rod of the firing mechanism is provided with the hook, and the hook is fixedly connected with the nail pushing assembly, so that the assembly is simple and the connection is firm.

(3) According to the utility model, the trigger mechanism is clamped into the arc-shaped recess at the end part of the push rod through the convex part at the upper end of the trigger handle, so that the trigger handle is connected with the push rod, and the trigger handle drives the push rod to move.

(4) According to the utility model, the spring connected with the pressing component is arranged at the first connecting part of the push rod, when the anastomat is triggered, the spring is stretched, and after triggering is finished, the push rod is rapidly pulled back under the elastic force of the spring to finish resetting.

(5) According to the utility model, the triggering mechanism is provided with the torsion spring, the elastic sheet of the torsion spring is contacted with the lower part of the limiting column of the push rod, the triggering handle is kept in an open state under the action of no external force, and after the triggering handle is loosened, the triggering handle can be quickly reset under the action of the elastic force of the elastic sheet.

(6) According to the arc-shaped anastomat, the trigger mechanism is arranged, so that the function of triggering the anastomat is realized, and meanwhile, the arc-shaped anastomat is simpler in structure, convenient to operate and strong in stability.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:

FIG. 1 is an internal structural view of the present invention;

FIG. 2 is a schematic view of the position of the push rod and the trigger handle in the cocked state of the present invention;

FIG. 3 is a view showing the construction of the installation of the torsion spring according to the present invention;

FIG. 4 is a view of the installation of the push rod and the firing handle in the firing state of the present invention;

FIG. 5 is a block diagram of the staple pushing assembly of the present invention.

The reference numbers in the drawings are:

the nail-pushing mechanism comprises a handle seat 1, a fixing pin 1-1, a push rod 2, a hook 2-1, an arc-shaped notch 2-2, a first limiting groove 2-3, a second limiting groove 2-4, a first connecting portion 2-5, a limiting column 2-6, a trigger handle 3, a convex portion 3-1, a blade 4, a nail pushing sheet 5, a nail pushing plate 6, a clamping groove 6-1, a torsion spring 7, an elastic sheet 7-1, a pressing handle 8, a connecting rod 9, a pin shaft 9-1, a central rod 10, a second connecting portion 10-1 and a spring 11.

Detailed Description

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

(example 1)

The arc-shaped anastomat shown in fig. 1 to 5 comprises a handle seat 1, a firing assembly, a pressing assembly and a nail pushing assembly. The percussion assembly comprises a push rod 2 and a percussion handle 3 hinged to the lower portion of the handle seat 1, the left end of the push rod 2 is fixedly connected with a nail pushing assembly of the anastomat, and the right end of the push rod is arranged in the handle seat 1 and connected with the pressing assembly. When the trigger handle 3 is held tightly, the trigger handle 3 drives the push rod 2 to push the nail pushing assembly to move leftwards, and triggering is completed.

Specifically, the left end of the push rod 2 is provided with a hook 2-1, the right end of the push rod is provided with an arc-shaped notch 2-2, a first limiting groove 2-3 and a second limiting groove 2-4 are sequentially arranged on the rod body from left to right, and a first connecting part 2-5 and a limiting column 2-6 are arranged below the second limiting groove 2-4. The nail pushing assembly comprises a blade 4, a nail pushing sheet 5 and a nail pushing plate 6, a clamping groove 6-1 matched with the hook 2-1 is formed in the nail pushing plate 6, the blade 4, the nail pushing sheet 5 and the nail pushing plate 6 are firstly assembled into a whole, and then the nail pushing assembly is fixedly connected with the push rod 2 through the hook 2-1 and the clamping groove 6-1.

The upper end of the trigger handle 3 is provided with a convex part 3-1 matched with the arc-shaped notch 2-2, when the trigger handle 3 is not triggered, the convex part 3-1 and the arc-shaped notch 2-2 are in a separated state, when the trigger handle 3 is held down, the convex part 3-1 is clamped into the arc-shaped notch 2-2 to realize the connection of the trigger handle 3 and the push rod 2, thereby realizing that the trigger handle 3 drives the push rod 2 to move. The part of the trigger handle 3, which is hinged with the handle seat 1, is also provided with a torsion spring 7, the torsion spring 7 is provided with an outwardly extending elastic sheet 7-1, the elastic sheet 7-1 is contacted with the lower part of the limiting column 2-6, the trigger handle 3 is kept in an open state before triggering without external force, and after triggering, the trigger handle 3 can be quickly reset under the elastic force of the elastic sheet 7-1 after the trigger handle 3 is loosened.

The pressing assembly comprises a pressing handle 8, a connecting rod 9 and a central rod 10, the pressing handle 8 is hinged to the lower portion of the handle seat 1 and is connected with the central rod 10 through the connecting rod 9, and the central rod 10 is overlapped with the push rod 2. One end of the connecting rod 9 close to the central rod 10 is provided with a pin shaft 9-1, the central rod 10 is hinged with the connecting rod 9 through the pin shaft 9-1, the pin shaft 9-1 is clamped in the second limiting groove 2-4, and the pin shaft 9-1 drives the push rod 2 to move forwards in the pressing process of the anastomat. The handle seat 1 is also internally provided with a fixing pin 1-1, and the fixing pin 1-1 is clamped into a first limiting groove 2-3, so that the push rod 2 is ensured to move along the horizontal direction. One end of the central rod 10 close to the connecting rod 9 is provided with a second connecting part 10-1, the first connecting part 2-5 is provided with a spring 11, and the other end of the spring 11 is connected with the second connecting part 10-1. When the anastomat is fired, the push rod 2 moves leftwards, the spring 11 is stretched, and after firing is completed, the push rod 2 is quickly pulled back under the action of the elastic force of the spring 11, and resetting is completed.

The working principle of the embodiment is as follows: as shown in fig. 1, when the stapler is in a cocked state, the pressing handle 8, the connecting rod 9 and the central rod 10 are in a relatively static state, and at this time, the pin 9-1 pushes the push rod 2 to a state shown in fig. 2. As shown in figure 3, the elastic sheet 7-1 of the torsion spring 7 is contacted with the bottom of the limit column 2-6 of the push rod 2 to generate elasticity, so that the firing handle 3 is kept in an open state. When the trigger handle 3 is held down, as shown in fig. 4, the convex part 3-1 is matched with the arc-shaped notch 2-2, and the push rod 2 moves leftwards to drive the nail pushing assembly to move synchronously, so that the trigger of the anastomat is completed. At the moment, the trigger handle 3 moves backwards rapidly under the action of the spring 11 and the torsion spring 7, and drives the push rod 2 and the nail pushing assembly to reset.

This embodiment drives 2 antedisplacement of push rod through setting up the percussion handle 3 to realize that fixed connection pushes away the antedisplacement of nail subassembly at 2 tip of push rod, accomplish the percussion of anastomat, whole firing mechanism structure is succinct, and convenient operation, the percussion is stable.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a firing mechanism of arc anastomat which characterized in that: the stapler comprises a push rod (2) and a firing handle (3) hinged to the lower portion of a handle seat of the stapler, wherein one end of the push rod (2) is fixedly connected with a staple pushing assembly of the stapler, and the other end of the push rod is arranged in the handle seat of the stapler and connected with a pressing assembly of the stapler; the firing handle (3) is suitable for driving the push rod (2) to push the nail pushing assembly to move forwards along the horizontal direction.

2. The firing mechanism of an arc stapler of claim 1, wherein: one end of the push rod (2) is provided with a hook (2-1), and the push rod (2) is fixedly connected with a nail pushing assembly of the anastomat through the hook (2-1).

3. The firing mechanism of an arc stapler of claim 1, wherein: the other end of the push rod (2) is provided with an arc-shaped notch (2-2), the upper end of the trigger handle (3) is provided with a convex part (3-1) matched with the arc-shaped notch (2-2), and when the trigger handle (3) is held down, the convex part (3-1) is suitable for being clamped into the arc-shaped notch (2-2) to realize the connection of the trigger handle (3) and the push rod (2).

4. The firing mechanism of an arc stapler of claim 1, wherein: a first limiting groove (2-3) and a second limiting groove (2-4) are sequentially arranged on the push rod (2) from left to right.

5. The firing mechanism of an arc stapler of claim 1, wherein: the other end of the push rod (2) is also provided with a first connecting part (2-5), the first connecting part (2-5) is provided with a spring (11), and the push rod (2) is connected with a pressing component of the anastomat through the spring (11).

6. The firing mechanism of an arc stapler of claim 1, wherein: still be equipped with torsional spring (7) between the handle seat of percussion handle (3) and anastomat, torsional spring (7) are equipped with outside extension shell fragment (7-1), be equipped with spacing post (2-6) on push rod (2), the lower part of shell fragment (7-1) and spacing post (2-6) contacts.

7. An arc anastomat is characterized in that: comprising the firing mechanism of any one of claims 1 to 5.