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Surgical stapler

A stapler and surgical technology, applied in the field of medical devices, can solve problems such as reflux, and achieve the effect of avoiding anastomotic leakage

Pending Publication Date: 2017-04-26
俞晓立 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in terms of preventing reflux, the phenomenon of reflux after stapler anastomosis still exists

Method used

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  • Surgical stapler
  • Surgical stapler
  • Surgical stapler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] figure 1 , figure 2 The overall structure of the surgical stapler of this embodiment is shown. As shown in the figure, the surgical stapler includes three parts: an operating part 30, a head 20, and an anvil 10.

[0072] 1. Operation part 30.

[0073] Such as figure 2 As shown, the operating portion 30 includes a cylindrical shell 33, which is formed by buckling two separate shells, and a hoop 35 is used to clamp one end of the shell. A sleeve 38 is arranged inside the cavity formed by the housing 33, and a push-pull rod (not shown in the figure) is arranged inside the sleeve 38. One end of the push-pull rod is connected to the butting portion 34 for docking with the nail anvil, and the other end is connected to the knob 36; The knob 36 can control the push-pull rod to advance or retreat in the sleeve 38, thereby causing the docking portion 34 to advance or retreat. Such as figure 2 As shown, the mating portion 34 is specifically a cavity with a fastening device on the p...

Embodiment 2

[0100] Image 6 , Figure 7 The cutter in Example 2 is shown. This embodiment is different from the first embodiment in that: in this embodiment, there are three linear cutters, which are located around the hollow cylinder 213, and the linear cutter 24 includes a flat elliptical push pin support. Two linear cutters 242 in the direction of the long axis of the surface 223, one linear cutter 243 in the direction of the short axis of the flat elliptical push pin support surface 223, and the bottom 244 of the cutter. The hollow cylinder 213 has two grooves in the long axis direction of the flat elliptical push pin support surface 223. The inner side of the linear cutter 242 is stuck in the grooves, and the hollow cylinder 213 is on the flat ellipse push pin support surface 223. There is also a groove in the direction of the short axis, the inner side of the linear cutter 243 is stuck in the groove, and the linear cutter is connected to the supporting surface 223 of the push pin col...

Embodiment 3

[0102] Figure 8 , Picture 9 The cutter in Example 3 is shown. Compared with the first embodiment, this embodiment is different in that: in this embodiment, there are four linear cutters located around the hollow cylinder 213, and the linear cutter 24 includes a flat elliptical push pin support. Two linear cutters 242 in the direction of the long axis of the surface 223, two linear cutters 243 in the direction of the short axis of the flat elliptical push pin support surface 223, and the bottom 244 of the cutter. The four linear cutters are arranged in a crisscross pattern. The hollow cylinder 213 has two grooves in the long axis direction of the flat elliptical push pin support surface 223. The inner side of the linear cutter 242 is stuck in the grooves, and the hollow cylinder 213 is on the flat ellipse push pin support surface 223. There are two grooves in the short axis direction, the inner side of the linear cutter 243 is stuck in the groove, and the linear cutter is con...

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Abstract

The invention relates to a surgical stapler. A head (20) comprises a nail cylinder (21), a nail push post (22), a nail bin (23) and a cutter (24), wherein the nail cylinder (21) is connected to an operating part (30); the nail push post (22) is arranged in the nail cylinder (21) and can be pushed by the operating part (30); the nail bin (23) is arranged at the end of the nail push post (22) and is used for placing stapling nails; the cutter (24) is supported by the nail push post (22) and can be pushed by the nail push post; the cutter (24) is a linear cutter; the nail cylinder (21), the nail push post (22) and the nail bin (23) are of a closed shape surrounding the linear cutter; a nail anvil (10) comprises an anvil seat (12) and a connecting shaft lever (11); and nail positions corresponding to nail holes in the nail bin (23) are formed in the joint surface of the anvil seat (12). With the adoption of the linear cutter of the stapler disclosed by the invention, the anastomotic stoma can be large so as to avoid stenosis; more tissues can be nailed around the anastomotic stoma, so that stomal leak can be avoided as much as possible; and moreover, tissues on two sides of the straight cut incision are close to each other and the incision is not a circular opening, thus achieving an anti-reflux effect.

Description

Technical field [0001] The invention belongs to the field of medical equipment, and particularly relates to a surgical stapler. Background technique [0002] Surgical operations often require anastomosis of two hollow organs and tissues, such as anastomosis of the esophagus and stomach (or colon), intestinal anastomosis, ureteral anastomosis, fallopian tube anastomosis, biliary anastomosis, and vascular anastomosis. The traditional anastomosis technique uses sutures to anastomose two cavity organs and tissues. The effect is reliable, but the operation is complicated and the technical requirements are high. [0003] In recent years, with the development of anastomat, two hollow organs or tissues can be anastomosed together with an anastomosis nail, which is simple to operate and reliable in effect. However, in the existing stapler, when two cavity organs and tissues are anastomosed together, the adjacent tissues are nailed together with staples, which will inevitably lead to differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/115
CPCA61B17/1155A61B2017/111
Inventor 俞晓立张伟聪朱炜嘉邓鑫张福霖毛文健钟丽红吴雄婷
Owner 俞晓立
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