CN207071099U - A kind of Hui Tou mechanisms, nail bin mechanism and stapler for stapler - Google Patents

Abstract

The utility model discloses a beak head mechanism, a nail bin mechanism and a stapler for a stapler. Wherein the beak head mechanism includes an installation part and a beak part. The root of the mounting portion is connected to the root of the beak. The installation part is in the shape of a strip, and a set hole is arranged inside. The fitting holes are arranged along the strip direction of the strip body, and an opening is provided on the end surface of the installation part. The beak is a flattened triangular structure that ends with a beaked head. The beak head is a round head structure. There is an included angle of 30-50 degrees between the beak and the installation part. The beak head mechanism is made of medical PVC material as a whole. The set hole is provided with a tensioning mechanism for clamping and fixing. The beak head mechanism is installed at the end of the stapler cover through the set hole, so that the common stapler has a beak-shaped structure, which provides the function of provoking and retracting, making the operation safer and easier.

Description

Beak head mechanism, staple cartridge mechanism and stapler for stapler

technical field

The utility model relates to a medical device, in particular to a laparoscopic cutting stapler.

Background technique

The laparoscopic cutting and stapler is used for laparoscopic surgery in the thoracic and abdominal cavities, and consists of a staple cartridge assembly, a fixed pusher connecting frame, a connecting rod, a push rod installed in the connecting rod, and an operating handle. The staple cartridge assembly includes a staple cartridge case, a staple cartridge cover, and a staple cartridge case. The staple bin cover is fixed on the fixed advancing connecting frame. The staple magazine is installed in the staple magazine. The staple magazine box is installed on the fixed propulsion connecting frame through the movable shaft, so that the opening and closing action can be performed between the nail magazine box and the nail magazine cover. The fixed propulsion connecting frame is connected with the connecting rod, and a push rod joint is connected with the push rod. The operating handle realizes the opening and closing action between the staple cartridge box and the staple cartridge cover as well as suturing or cutting tissue through the push rod in the connecting rod. During operation, the staple cartridge cover needs to be used as an operating lever when the staple cartridge case and the staple cartridge cover are opened to separate the tissue to be sutured from other surrounding tissues in order to realize the suturing and cutting action after being closed with the staple cartridge case. The staple magazine cover of common endoscopic cutting staplers is usually flat, which is inconvenient to be affected by the angle when it is used to separate the incision tissue to be sutured from other surrounding tissues. For this reason, new endoscopic cutting staplers have appeared on the market. The end of the staple bin cover of the new laparoscopic cutting stapler is provided with a beak-shaped structure, so as to facilitate the operation when the incision tissue to be sutured is separated from other surrounding tissues. The price of ordinary endoscopic cutting staplers currently used at home and abroad is generally around 2,000-3,000 yuan, but this new endoscopic cutting stapler is priced as high as 6,000 yuan just because of the extra beak-shaped structure. .

Contents of the invention

The problem to be solved by the utility model is to design a beak head mechanism that can be installed on the end of the nail bin cover of an ordinary stapler, so that the end of the nail bin cover of an ordinary stapler can be provided with a beak head mechanism to facilitate operation.

For solving the problems referred to above, the scheme that the utility model adopts is as follows:

A beak head mechanism for an anastomat according to the utility model is characterized in that it includes a mounting part and a beak part; the root of the mounting part is connected to the root of the beak part; The set hole at the end of the stapler cover; the set hole is arranged along the strip direction of the strip, and there is an opening on the end surface of the installation part; the beak is a flat triangular structure, so that the end has a beak head ; There is a certain angle between the beak and the installation part; the set hole is provided with a tensioning mechanism for clamping and fixing the end of the stapler's staple bin cover.

Further, according to the beak head mechanism of the present utility model, the beak head mechanism is entirely made of medical PVC material; the tension mechanism is realized by the elasticity of the medical PVC material used in the beak head mechanism.

Further, according to the beak head mechanism of the present invention, the installation part and the beak part are made of metal materials; the tensioning mechanism is a fastening screw.

Further, according to the beak head mechanism of the present invention, the installation part and the beak part are made of metal materials; the tensioning mechanism is an elastic sleeve arranged in the sleeve hole.

Further, according to the beak head mechanism of the present invention, the installation part and the beak part are made of metal materials; the tensioning mechanism is an elastic piece arranged in the sleeve hole.

Further, according to the beak head mechanism of the present utility model, the beak head mechanism also includes a backboard; the structure composed of the installation part and the beak part is made of medical PVC material; the tensioning mechanism is made of medical PVC material used in the beak head mechanism The elasticity of the material is achieved; the back plate is mounted on the back of the structure formed by the mounting part and the beak part and is made of hard metal.

Further, according to the beak mechanism of the present invention, the angle between the beak and the installation part is 30-50 degrees.

Further, according to the beak head mechanism of the present utility model, the beak head is a round head structure.

Further, according to the beak head mechanism of the present invention, the length of the installation part is 1.0-3.0 cm; the length of the beak part is 0.5-3.0 cm.

Further, a magazine mechanism according to the present invention includes a magazine assembly, a fixed propulsion connecting frame and the above-mentioned beak head mechanism; the magazine assembly includes a magazine box, a magazine magazine, and a magazine cover; the magazine magazine is installed on Inside the staple magazine box; the roots of the staple magazine box and the staple magazine cover are installed on the fixed propulsion connecting frame; the staple magazine cover is in the shape of a flat strip; the beak head mechanism is installed at the end of the staple magazine cover through the set hole.

Further, a stapler according to the present utility model includes a staple bin cover and the above-mentioned beak head mechanism; the staple bin cover is in the shape of a flat strip; the beak head mechanism is installed at the end of the staple bin cover through a sleeve hole.

The technical effect of the utility model is as follows: the use of the new beak head mechanism makes the end of the staple bin cover of the ordinary stapler be provided with a beak head-shaped structure, so as to separate the incision tissue to be sutured from other surrounding tissues for surgical operation.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the beak head mechanism of the embodiment of the present invention.

Fig. 2 and Fig. 3 are structural schematic diagrams of the staple cartridge mechanism of the embodiment of the present invention. In Figure 2, the beak head mechanism and the staple cartridge cover are disassembled; in Figure 3, the beak head mechanism is installed at the end of the staple cartridge cover.

Fig. 4 is a schematic structural view of the beak head mechanism in Embodiment 2 of the present utility model.

Fig. 5 is a schematic structural view of the beak head mechanism in Embodiment 3 of the present utility model.

Fig. 6 and Fig. 7 are structural schematic diagrams of the beak head mechanism in Embodiment 4 of the present utility model.

Fig. 8 is a schematic structural view of Embodiment 5 of the present utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Example 1

As shown in FIG. 1 , a beak mechanism for a stapler includes a mounting part 11 and a beak part 12 . The root of the mounting part 11 is connected to the root of the beak 12 . The installation part 11 is in the shape of a strip, and the length L1 of the installation part 11 is 1.0-3.0 cm. The mounting part 11 is provided with a fitting hole 14 for fitting on the end of the staple magazine cover. The fitting holes 14 are arranged along the strip direction of the strip body, and are provided with openings on the end surface of the mounting part 11 . The shape of the sleeve hole 14 matches the structure of the end structure of the stapler's staple bin cover. Stapler, that is, laparoscopic cutting stapler. The stapler magazine cover usually has a curved back. Therefore, in this embodiment, one side of the flat fitting hole 14 is also curved. Correspondingly, the back surface 15 of the installation part 11 is an arc surface structure. The beak 12 is a flat triangular structure with a beak head 13 at the end. Beak head 13 is not round head structure. The length L2 of the beak 12 is 0.5-3.0 cm. An included angle A exists between the beak 12 and the installation part 11 . The included angle A is 30-50 degrees. The sleeve hole 14 is provided with a tensioning mechanism for clamping and fixing the end of the staple magazine cover.

Fig. 2 and Fig. 3 are the staple magazine mechanism of the stapler related to this embodiment. The stapler includes a staple cartridge mechanism, a connecting rod, a push rod installed in the connecting rod, and an operating handle. Wherein, the staple cartridge mechanism includes a staple cartridge assembly, a fixed propulsion connecting frame 24 and a beak head mechanism 1 . The staple cartridge assembly includes a staple cartridge case 21 , a staple cartridge case 22 and a staple cartridge cover 23 . The staple cartridge case 22 is installed in the staple cartridge case 21 . The roots of the staple cartridge case 21 and the staple cartridge cover 23 are mounted on the fixedly advancing connecting frame 24 . The staple bin cover 23 is in the shape of a flat strip. The staple cartridge case 21 is installed on the fixed propulsion connecting frame 24 through the movable shaft, so that the staple cartridge case 21 and the staple cartridge cover 23 can be opened and closed. The fixed propulsion connecting frame 24 is connected with the connecting rod, and is provided with a push rod joint to be connected with the push rod. The operating handle is connected to the connecting rod. The beak mechanism 1 is the beak mechanism for the stapler in FIG. 1 . The beak head mechanism 1 is installed on the end of the staple bin cover 23 through the sleeve hole 14 .

In this embodiment, the beak head mechanism composed of the installation part 11 and the beak part 12 is made of medical PVC material as a whole. Moreover, the medical PVC material is a modified PVC material with certain elasticity and physical strength. The elastic PVC material enables the beak head mechanism to be fastened when it is set at the end of the stapler's staple bin cover, and the physical strength of the PVC material enables the angle A between the installation part 11 and the beak part 12 to be maintained during operation without As for bending in the job. Therefore, in this embodiment, the aforementioned tensioning mechanism is realized by the elasticity of the medical PVC material adopted by the beak head mechanism. The beak mechanism is stuck on the end of the staple bin cover 23 by its own elasticity.

Example 2

As shown in FIG. 1 , a beak mechanism for a stapler includes a mounting part 11 and a beak part 12 . The root of the mounting part 11 is connected to the root of the beak 12 . The installation part 11 is in the shape of a strip, and the length L1 of the installation part 11 is 1.0-3.0 cm. The mounting part 11 is provided with a fitting hole 14 for fitting on the end of the staple magazine cover. The fitting holes 14 are arranged along the strip direction of the strip body, and are provided with openings on the end surface of the mounting part 11 . The shape of the sleeve hole 14 matches the structure of the end structure of the stapler's staple bin cover. Stapler, that is, laparoscopic cutting stapler. The stapler magazine cover usually has a curved back. Therefore, in this embodiment, one side of the flat fitting hole 14 is also curved. Correspondingly, the back surface 15 of the installation part 11 is an arc surface structure. The beak 12 is a flat triangular structure with a beak head 13 at the end. Beak head 13 is not round head structure. The length L2 of the beak 12 is 0.5-3.0 cm. An included angle A exists between the beak 12 and the installation part 11 . The included angle A is 30-50 degrees. The sleeve hole 14 is provided with a tensioning mechanism for clamping and fixing the end of the staple magazine cover.

Fig. 2 and Fig. 3 are the staple magazine mechanism of the stapler related to this embodiment. The stapler includes a staple cartridge mechanism, a connecting rod, a push rod installed in the connecting rod, and an operating handle. Wherein, the staple cartridge mechanism includes a staple cartridge assembly, a fixed propulsion connecting frame 24 and a beak head mechanism 1 . The staple cartridge assembly includes a staple cartridge case 21 , a staple cartridge case 22 and a staple cartridge cover 23 . The staple cartridge case 22 is installed in the staple cartridge case 21 . The roots of the staple cartridge case 21 and the staple cartridge cover 23 are mounted on the fixedly advancing connecting frame 24 . The staple bin cover 23 is in the shape of a flat strip. The staple cartridge case 21 is installed on the fixed propulsion connecting frame 24 through the movable shaft, so that the staple cartridge case 21 and the staple cartridge cover 23 can be opened and closed. The fixed propulsion connecting frame 24 is connected with the connecting rod, and is provided with a push rod joint to be connected with the push rod. The operating handle is connected to the connecting rod. The beak mechanism 1 is the beak mechanism for the stapler in FIG. 1 . The beak head mechanism 1 is installed on the end of the staple bin cover 23 through the sleeve hole 14 .

In this embodiment, the entire beak head mechanism composed of the installation part 11 and the beak part 12 is made of metal material. Here, the metal material is a medical metal material, such as medical stainless steel, medical titanium alloy, and the like. In this embodiment, the aforementioned tensioning mechanism, as shown in FIG. 4 , is a fastening screw 41 disposed on the back of the mounting portion 11 . The back of the mounting part 11 is provided with a screw hole passing through the fitting hole 14 . There are 2~5 screw holes. Fastening screws 41 are installed in each screw hole. The end of the fastening screw 41 passing through the sleeve hole 14 pushes against the end of the nail bin cover 23 to realize fastening between the beak head mechanism and the end of the nail bin cover 23 . Thus, the beak head mechanism is clamped on the end of the nail bin cover 23 by fastening the fastening screw 41 .

Example 3

As shown in FIG. 1 , a beak mechanism for a stapler includes a mounting part 11 and a beak part 12 . The root of the mounting part 11 is connected to the root of the beak 12 . The installation part 11 is in the shape of a strip, and the length L1 of the installation part 11 is 1.0-3.0 cm. The mounting part 11 is provided with a fitting hole 14 for fitting on the end of the staple magazine cover. The fitting holes 14 are arranged along the strip direction of the strip body, and are provided with openings on the end surface of the mounting portion 11 . The shape of the sleeve hole 14 matches the structure of the end structure of the stapler's staple bin cover. Stapler, that is, laparoscopic cutting stapler. The stapler magazine cover usually has a curved back. Therefore, in this embodiment, one side of the flat fitting hole 14 is also curved. Correspondingly, the back surface 15 of the installation part 11 is an arc surface structure. The beak 12 is a flat triangular structure with a beak head 13 at the end. Beak head 13 is not round head structure. The length L2 of the beak 12 is 0.5-3.0 cm. An included angle A exists between the beak 12 and the installation part 11 . The included angle A is 30-50 degrees. The sleeve hole 14 is provided with a tensioning mechanism for clamping and fixing the end of the staple magazine cover.

Fig. 2 and Fig. 3 are the staple magazine mechanism of the stapler related to this embodiment. The stapler includes a staple cartridge mechanism, a connecting rod, a push rod installed in the connecting rod, and an operating handle. Wherein, the staple cartridge mechanism includes a staple cartridge assembly, a fixed propulsion connecting frame 24 and a beak head mechanism 1 . The staple cartridge assembly includes a staple cartridge case 21 , a staple cartridge case 22 and a staple cartridge cover 23 . The staple cartridge case 22 is installed in the staple cartridge case 21 . The roots of the staple cartridge case 21 and the staple cartridge cover 23 are mounted on the fixedly advancing connecting frame 24 . The staple bin cover 23 is in the shape of a flat strip. The staple cartridge case 21 is installed on the fixed propulsion connecting frame 24 through the movable shaft, so that the staple cartridge case 21 and the staple cartridge cover 23 can be opened and closed. The fixed propulsion connecting frame 24 is connected with the connecting rod, and is provided with a push rod joint to be connected with the push rod. The operating handle is connected to the connecting rod. The beak mechanism 1 is the beak mechanism for the stapler in FIG. 1 . The beak head mechanism 1 is installed on the end of the staple bin cover 23 through the sleeve hole 14 .

In this embodiment, the mounting part 11 and the beak part 12 are made of metal materials. Here, the metal material is a medical metal material, such as medical stainless steel, medical titanium alloy, and the like. In this embodiment, the aforementioned tensioning mechanism, as shown in FIG. 5 , is an elastic sleeve 42 disposed in the fitting hole 14 . The elastic sleeve 42 is made of medical elastic PVC material. The elastic sleeve 42 has a sleeve hole matching with the end structure of the stapler's staple magazine cover. The four sides of the elastic sleeve 42 are pasted on the inner wall of the sleeve hole 14 . Thus, the tensioning mechanism is realized by the elasticity of the elastic sleeve 42 . The beak head mechanism is stuck on the end of the staple bin cover 23 by the elasticity of the elastic sleeve 42 .

Example 4

As shown in FIG. 1 , a beak mechanism for a stapler includes a mounting part 11 and a beak part 12 . The root of the mounting part 11 is connected to the root of the beak 12 . The installation part 11 is in the shape of a strip, and the length L1 of the installation part 11 is 1.0-3.0 cm. The mounting part 11 is provided with a fitting hole 14 for fitting on the end of the staple magazine cover. The fitting holes 14 are arranged along the strip direction of the strip body, and are provided with openings on the end surface of the mounting part 11 . The shape of the sleeve hole 14 matches the structure of the end structure of the stapler's staple bin cover. Stapler, that is, laparoscopic cutting stapler. The stapler magazine cover usually has a curved back. Therefore, in this embodiment, one side of the flat fitting hole 14 is also curved. Correspondingly, the back surface 15 of the installation part 11 is an arc surface structure. The beak 12 is a flat triangular structure with a beak head 13 at the end. Beak head 13 is not round head structure. The length L2 of the beak 12 is 0.5-3.0 cm. An included angle A exists between the beak 12 and the installation part 11 . The included angle A is 30-50 degrees. The sleeve hole 14 is provided with a tensioning mechanism for clamping and fixing the end of the staple magazine cover.

Fig. 2 and Fig. 3 are the staple magazine mechanism of the stapler related to this embodiment. The stapler includes a staple cartridge mechanism, a connecting rod, a push rod installed in the connecting rod, and an operating handle. Wherein, the staple cartridge mechanism includes a staple cartridge assembly, a fixed propulsion connecting frame 24 and a beak head mechanism 1 . The staple cartridge assembly includes a staple cartridge case 21 , a staple cartridge case 22 and a staple cartridge cover 23 . The staple cartridge case 22 is installed in the staple cartridge case 21 . The roots of the staple cartridge case 21 and the staple cartridge cover 23 are mounted on the fixedly advancing connecting frame 24 . The staple bin cover 23 is in the shape of a flat strip. The staple cartridge case 21 is installed on the fixed propulsion connecting frame 24 through the movable shaft, so that the staple cartridge case 21 and the staple cartridge cover 23 can be opened and closed. The fixed propulsion connecting frame 24 is connected with the connecting rod, and is provided with a push rod joint to be connected with the push rod. The operating handle is connected to the connecting rod. The beak mechanism 1 is the beak mechanism for the stapler in FIG. 1 . The beak head mechanism 1 is installed on the end of the staple bin cover 23 through the sleeve hole 14 .

In this embodiment, the mounting part 11 and the beak part 12 are made of metal materials. Here, the metal material is a medical metal material, such as medical stainless steel, medical titanium alloy, and the like. In this embodiment, the aforementioned tensioning mechanism, as shown in FIGS. 6 and 7 , is an elastic piece 43 disposed in the fitting hole 14 . The elastic sheet 43 can be installed on the back of the fitting hole 14 as shown in FIG. 6 , and can also be installed on the bottom surface of the fitting hole 14 as shown in FIG. 7 . Since the back of the fitting hole 14 has an arc-shaped structure, the elastic sheet 43 is usually made of medical elastic PVC material. And because the bottom surface of the fitting hole 14 is a planar structure, therefore, the elastic sheet 43 can be made of medical elastic PVC material, and can also be an elastic reed made of metal material. Thus, the tension mechanism is realized by the elasticity of the elastic piece 43 . The beak head mechanism is stuck on the end of the staple bin cover 23 by the elasticity of the elastic sheet 43 .

Example 5

As shown in FIG. 8 , a beak mechanism for a stapler includes a mounting part 11 , a beak part 12 and a back plate 19 . The root of the mounting part 11 is connected to the root of the beak 12 . The installation part 11 is in the shape of a strip, and the length L1 of the installation part 11 is 1.0-3.0 cm. The mounting part 11 is provided with a fitting hole 14 for fitting on the end of the staple magazine cover. The fitting holes 14 are arranged along the strip direction of the strip body, and are provided with openings on the end surface of the mounting part 11 . The shape of the sleeve hole 14 matches the structure of the end structure of the stapler's staple bin cover. Stapler, that is, laparoscopic cutting stapler. The stapler magazine cover usually has a curved back. Therefore, in this embodiment, one side of the flat fitting hole 14 is also curved. Correspondingly, the back surface 15 of the installation part 11 is an arc surface structure. The beak 12 is a flat triangular structure with a beak head 13 at the end. Beak head 13 is not round head structure. The length L2 of the beak 12 is 0.5-3.0 cm. An included angle A exists between the beak 12 and the installation part 11 . The included angle A is 30-50 degrees. The sleeve hole 14 is provided with a tensioning mechanism for clamping and fixing the end of the staple magazine cover.

In this embodiment, the entire structure composed of the installation part 11 and the beak part 12 is made of medical PVC material. Moreover, the medical PVC material is a modified PVC material with certain elasticity and physical strength. The elastic PVC material enables the beak head mechanism to be fastened when it is set at the end of the stapler's staple bin cover, and the physical strength of the PVC material enables the angle A between the installation part 11 and the beak part 12 to be maintained during operation without As for bending in the job. Therefore, in this embodiment, the aforementioned tensioning mechanism is realized by the elasticity of the medical PVC material adopted by the beak head mechanism. The beak mechanism is stuck on the end of the staple bin cover 23 by its own elasticity.

The back plate 19 is used to reinforce the structure composed of the installation part 11 and the beak part 12 made of medical PVC material, and is formed by pressing a hard metal plate, and the hard metal is a medical metal material, for example, Medical stainless steel, medical titanium alloy, etc. The back plate 19 is installed on the back of the structure formed by the installation part 11 and the beak part 12 , and its shape matches the structure formed by the installation part 11 and the beak part 12 .

Fig. 2 and Fig. 3 are the staple magazine mechanism of the stapler related to this embodiment. The stapler includes a staple cartridge mechanism, a connecting rod, a push rod installed in the connecting rod, and an operating handle. Wherein, the staple cartridge mechanism includes a staple cartridge assembly, a fixed propulsion connecting frame 24 and a beak head mechanism 1 . The staple cartridge assembly includes a staple cartridge case 21 , a staple cartridge case 22 and a staple cartridge cover 23 . The staple cartridge case 22 is installed in the staple cartridge case 21 . The roots of the staple cartridge case 21 and the staple cartridge cover 23 are mounted on the fixedly advancing connecting frame 24 . The staple bin cover 23 is in the shape of a flat strip. The staple cartridge case 21 is installed on the fixed propulsion connecting frame 24 through the movable shaft, so that the staple cartridge case 21 and the staple cartridge cover 23 can be opened and closed. The fixed propulsion connecting frame 24 is connected with the connecting rod, and is provided with a push rod joint to be connected with the push rod. The operating handle is connected to the connecting rod. The beak mechanism 1 is the beak mechanism for the stapler in FIG. 1 . The beak head mechanism 1 is installed on the end of the staple bin cover 23 through the sleeve hole 14 .

It should be pointed out that the stapler in the above embodiment is a linear cutting stapler. Those skilled in the art understand that the structure of the present utility model can also be used for a non-linear cutting stapler, such as a curved cutting stapler, as long as the present invention The beak head mechanism of the utility model can be cut according to the staple bin cover of the stapler.

In addition, it should be pointed out that the staple magazine 21, the staple magazine 22, the fixed propulsion connecting frame 24, the connecting rod, the push rod installed in the connecting rod, and the operating handle in the above-mentioned stapler belong to the existing staplers. The specific structure of the components in the utility model is not in the scope of the present utility model, and will not be described in detail in this specification.

Claims (10)

1. a beak head mechanism for stapler, it is characterized in that, comprises installation portion (11) and beak portion (12); The root of installation portion (11) is connected with the root of beak portion (12); Installation portion ( 11) It is in the shape of a strip, and is provided with a set hole (14) for being set on the end of the stapler stapler cover; the set hole (14) is arranged along the strip direction of the strip, and is located at the end of the installation part (11). There is an opening on the surface; the beak (12) is a flat triangular structure, so that the end has a beak head (13); there is a certain angle between the beak (12) and the installation part (11); the set hole ( 14) It is provided with a tensioning mechanism for clamping and fixing the end of the staple magazine cover. 2. The beak mechanism for stapler as claimed in claim 1, characterized in that, the whole of the beak mechanism is made of medical PVC material; the tensioning mechanism is made of the medical PVC material adopted by the beak mechanism Achieve self-elasticity. 3. The beak head mechanism for a stapler according to claim 1, characterized in that, the installation part (11) and the beak part (12) are made of metal materials; the tensioning mechanism is a fastening screw. 4. The beak head mechanism for stapler as claimed in claim 1, characterized in that, the installation part (11) and the beak part (12) are made of metal material; the tensioning mechanism is arranged in the sleeve hole ( 14) Elastic sleeve inside. 5. The beak head mechanism for stapler as claimed in claim 1, characterized in that, the mounting portion (11) and the beak portion (12) are made of metal material; the tensioning mechanism is arranged in the sleeve hole ( 14) Elastic sheet inside. 6. the beak head mechanism for stapler as claimed in claim 1, is characterized in that, this beak head mechanism also comprises backboard (19); The structure that mounting portion (11) and beak portion (12) are formed by Made of medical PVC material; the tensioning mechanism is realized by the elasticity of the medical PVC material adopted by the beak head mechanism; Made of hard metal. 7. The beak head mechanism for a stapler according to claim 1, characterized in that the angle between the beak portion (12) and the mounting portion (11) is 30-50 degrees. 8. The beak head mechanism for a stapler according to claim 1, characterized in that, the length of the mounting part (11) is 1.0-3.0 cm; the length of the beak part (12) is 0.5-3.0 cm. 9. A staple cartridge mechanism, characterized in that it comprises a staple cartridge assembly, a fixedly advancing connecting frame (24) and the beak head mechanism according to any one of claims 1 to 6; the staple cartridge assembly comprises a staple cartridge case ( 21), nail magazine (22), nail magazine cover (23); nail magazine (22) is installed in the nail magazine box (21); the root of nail magazine box (21) and nail magazine cover (23) is installed in Fix on the advancing connecting frame (24); the staple bin cover (23) is in the shape of a flat strip; the beak head mechanism is installed on the end of the staple bin cover (23) through the sleeve hole (14). 10. A stapler, characterized in that it comprises a staple bin cover (23) and the beak head mechanism according to any one of claims 1 to 6; the staple bin cover (23) is in the shape of a flat strip; the beak The head mechanism is installed on the end of the staple bin cover (23) through the sleeve hole (14).