Arc-shaped staple cartridge structure of a medical stapler

Abstract

The present invention relates to the field of medical devices, particularly to the arc-shaped staple cartridge structure of a medical stapler. The arc-shaped staple cartridge structure of a medical stapler includes two staple cartridge bodies and a bottom plate. A bottom plate is provided between the two staple cartridge bodies. An arc-shaped track is provided inside the bottom plate. A staple pushing strip is provided inside the arc-shaped track. The staple pushing strip is connected to a spring base. Suture staples are arranged on the arc-shaped track. Behind the suture staples is a staple pusher. One end of a staple pushing spring is sleeved on the rear part of the staple pusher, and the other end of the staple pushing spring is installed on the spring base. A spring seat is provided on the inner wall of the front part of the staple cartridge body. A return spring is provided on the spring seat. The return spring contacts a pressing plate, and the pressing plate is located above the suture staples to be ejected. The advantages of the present invention are as follows: novel structure, ingenious design. The arc-shaped structure of the arc-shaped track is more conducive to the arrangement of suture staples and makes the staple ejection smoother, reducing the phenomenon of staple jamming.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, in particular to an arc-shaped staple cartridge structure of a medical stapler. Background Art

[0002] In traditional surgical operations, skin suturing is all carried out by using needles and threads. The suture technique requires high skills, takes a long time, causes large tissue reactions, is prone to inflammation, and the wound is not easy to be aligned. The postoperative scar is obvious, and the patient has obvious pain when removing the stitches. Therefore, skin staplers are widely used. However, at present, due to design problems, many staplers have the phenomenon of staple jamming. Summary of the Invention

[0003] In order to solve the above technical problem of staple jamming, the present invention provides an arc-shaped staple cartridge structure of a medical stapler.

[0004] The technical solution of the present invention is as follows:

[0005] An arc-shaped staple cartridge structure of a medical stapler, including two staple cartridge bodies and a bottom plate. A bottom plate is provided between the two staple cartridge bodies. An arc-shaped track is provided inside the bottom plate. A staple pushing strip is provided inside the arc-shaped track. The staple pushing strip is connected to a spring base. Suture staples are arranged on the arc-shaped track. Behind the suture staples is a staple pushing bolt. One end of a staple pushing spring is sleeved on the rear part of the staple pushing bolt, and the other end of the staple pushing spring is installed on the spring base. A spring seat is provided on the inner wall of the front part of the staple cartridge body. A return spring is provided on the spring seat. The return spring contacts a pressing plate, and the pressing plate is located above the suture staples to be ejected.

[0006] A nail blocking frame is provided at the front end of the bottom plate, and an installation seat is provided at the rear part. Both sides of the installation seat are smooth surfaces, and a recessed opening is provided between the smooth surfaces. A jack is provided in the middle of the arc-shaped track. The head of the staple pushing strip is a connecting plate a, the middle is an orbital body which is recessed inward, and the tail is provided with a connecting plate b. A clamping block is provided on the surface of the connecting plate b, and the middle of the clamping block is hollowed out into a U shape. A buckle is provided in the middle of the bottom of the staple pushing strip. Buckle bodies a, b, and c are respectively provided on the left side, right side, and bottom of the spring base, and are hollowed out in the middle. The buckle bodies a and b are connected to the clamping block, and the buckle body c is connected to the bottom of the staple pushing strip.

[0007] A baffle is provided at the front end of the staple cartridge body, a spring seat is provided behind the baffle, and a protection plate is provided at the rear end of the staple cartridge body.

[0008] Both side walls of the staple pushing bolt are in contact with the outer wall of the arc-shaped track.

[0009] Using the technical solution of the present invention, the structure is novel and ingeniously designed. The arc-shaped structure of the arc-shaped track is more conducive to the arrangement of suture staples and makes the staple ejection smoother, reducing the phenomenon of staple jamming. Brief Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the present invention;

[0011] Figure 2 and 3 Figures 3 and 4 are schematic structural diagrams of parts of the present invention;

[0012] Figure 5 is a schematic structural diagram of the staple cartridge body of the present invention;

[0013] Figure 6 is a schematic structural diagram of the base plate of the present invention;

[0014] Figure 7 is a schematic structural diagram of the spring base of the present invention;

[0015] Figure 8 is a schematic structural diagram of the staple remover strip of the present invention. Detailed Embodiment

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. Embodiment

[0017] As shown in Figure 1 and 2 Figures 3, 4, 5, 6, 7, and 8, the arc-shaped staple cartridge structure of the medical stapler includes two staple cartridge bodies 3 and a base plate 10. The inner wall of the staple cartridge body 3 is provided with insertion holes, and the base plate 10 is provided with insertion sockets for fitting and fixing. The bottom of the base plate 10 is also arc-shaped. A base plate 10 is provided between the two staple cartridge bodies 3. An arc-shaped track 13 is provided inside the base plate 10. A staple remover strip 9 is provided inside the arc-shaped track 13. The staple remover strip 9 is connected to a spring base 6. Suture staples 8 are arranged on the arc-shaped track 13. Behind the suture staples 8 is a pusher bolt 4. One end of a pusher spring 5 is sleeved on the rear part of the pusher bolt 4, and the other end of the pusher spring 5 is installed on the spring base 6. A spring seat 22 is provided on the inner wall of the front part of the staple cartridge body 3. A return spring 2 is provided on the spring seat 22. The return spring 2 contacts a pressing plate 1, and the pressing plate 1 is located above the suture staples 8 to be ejected.

[0018] A staple blocking frame 7 is provided at the front end of the base plate 10, and an installation seat is provided at the rear part. Both sides of the installation seat are smooth surfaces 12. There is a recessed opening between the smooth surfaces 12. An insertion hole 14 is provided in the middle of the arc-shaped track. The head of the staple remover strip 9 is a connecting plate a15, the middle is a track body which is recessed inward, and the tail is provided with a connecting plate b18. A block 17 is provided on the surface of the connecting plate b8, and the middle of the block 17 is hollowed out into a U shape. A buckle 16 is provided in the middle of the bottom of the staple remover strip 9. Buckle bodies a19, buckle bodies b20, and buckle bodies c21 are respectively provided on the left side, right side, and bottom of the spring base 6, and are hollowed out in the middle. The buckle bodies a19 and the buckle bodies b20 are connected to the block 17, and the buckle bodies c21 are connected to the bottom of the staple remover strip 9.

[0019] A baffle 23 is provided at the front end of the staple cartridge body 3, a spring seat 22 is provided behind the baffle 23, and a protection plate 24 is provided at the rear end of the staple cartridge body 3.

[0020] Both side walls of the staple pushing bolt 4 are in contact with the outer wall of the arc-shaped track 13.

[0021] During use, the middle of the front end of the staple removing strip 9 is recessed, and the two sides form feet. The front part is limited by the inner wall of the bottom plate. The middle of the staple removing strip 9 is an arc-shaped body, which is recessed inward. A limiting block is arranged below the bottom of the staple removing strip 9. The two corners of the staple blocking frame 7 are defective and are inclined and arranged between the feet. The staples 8 are arranged on the bottom plate 10. The staple pushing bolt 4 pushes the staples 8 forward under the action of the staple pushing spring 5, so that the frontmost staple 8 abuts against the staple blocking frame 7. The handle pushes the staple pressing plate 1 to deform the staples 8. When the handle is released, the staple pressing plate 1 rebounds under the action of the return spring 2, and the spring base 6 pushes the staple removing strip 9 to push the formed staples 8 out of the staple blocking frame 7. The arc-shaped structure of the arc-shaped track is more conducive to the arrangement of the staples and makes the staple ejection smoother, reducing the phenomenon of staple jamming.

[0022] It should be understood that the above are only the preferred embodiments of the present invention, and are not sufficient to limit the technical solutions of the present invention. For those of ordinary skill in the art, within the spirit and principles of the present invention, additions, deletions, substitutions, transformations or improvements can be made according to the above description, and all these technical solutions after the above additions, deletions, substitutions, transformations or improvements shall fall within the protection scope of the appended claims of the present invention.

Claims

1. The arc-shaped staple cartridge structure of a medical stapler, comprising two staple cartridge bodies (3) and a bottom plate (10), characterized in that: A base plate (10) is provided between the two staple cartridge bodies (3). An arc-shaped track (13) is provided inside the base plate (10). A staple removing strip (9) is provided inside the arc-shaped track (13). The staple removing strip (9) is connected to a spring base (6). Suture staples (8) are arranged on the arc-shaped track (13). Behind the suture staples (8) is a staple pushing bolt (4). One end of a staple pushing spring (5) is sleeved on the rear part of the staple pushing bolt (4). The other end of the staple pushing spring (5) is installed on the spring base (6). A spring seat is provided on the inner wall of the front part of the staple cartridge body (3). A return spring (2) is provided on the spring seat. The return spring (2) contacts a staple pressing plate (1). The staple pressing plate (1) is located above the suture staples (8) to be ejected. A staple blocking frame (7) is provided at the front end of the base plate (10), and an installation seat is provided at the rear part. Both sides of the installation seat are smooth surfaces (12). There is a recessed opening between the smooth surfaces (12). An insertion hole (14) is provided in the middle of the arc-shaped track. The head of the staple removing strip (9) is a connecting plate a (15), the middle is an orbital body which is recessed inward, and the tail is provided with a connecting plate b (18). A clamping block (17) is provided on the surface of the connecting plate b. The middle of the clamping block (17) is hollowed out into a U shape. A buckle (16) is provided in the middle of the bottom of the staple removing strip (9). Buckle bodies a (19), b (20), and c (21) are respectively provided on the left side, right side, and bottom of the spring base (6), and are hollowed out in the middle. The buckle body a (19) and the buckle body b (20) are connected to the clamping block (17), and the buckle body c (21) is connected to the bottom of the staple removing strip (9). A baffle is provided at the front end of the staple cartridge body (3), and a spring seat is provided behind the baffle. A protection plate (24) is provided at the rear end of the staple cartridge body (3). Both side walls of the staple pushing bolt (4) contact the outer wall of the arc-shaped track (13). The middle of the front end of the staple removing strip (9) is recessed, and both sides form support feet. The front part is limited by the inner wall of the base plate. The middle of the staple removing strip (9) is an arc-shaped body which is recessed inward. A limiting block is provided below the bottom of the staple removing strip (9). The two corners of the staple blocking frame (7) are defective and are inclined and arranged between the support feet. The suture staples (8) are arranged on the base plate (10). The staple pushing bolt (4) pushes the suture staples (8) forward under the action of the staple pushing spring (5), so that the frontmost suture staple (8) abuts against the staple blocking frame (7). The handle pushes the staple pressing plate (1) to deform the suture staples (8). When the handle is released, the staple pressing plate (1) rebounds under the action of the return spring (2). The spring base (6) pushes the staple removing strip (9) to push the formed suture staples (8) out of the staple blocking frame (7). The arc-shaped structure of the arc-shaped track makes the staple ejection smoother.

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