Arc-shaped cutting stitching instrument

Abstract

The invention relates to an arc-shaped cutting stitching instrument, which comprises a supporting plate, a jaw bracket, a nail cabin assembly, a nail pressing holder, a connecting assembly, a pushing mechanism and a striking mechanism, wherein corresponding faces of the nail pressing nail holder, the nail cabin assembly and nail pressing holder are arc-shaped. The arc-shaped cutting stitching instrument has the advantages of reduction in instrument size at the same stitching length, smaller striking force of the instrument, and better stitch forming; and the arc-shaped cutting stitching instrument has the advantages of simple structure, convenience in assembling, safety in using, and simultaneous realization of stitching and cutting actions under the action of the striking mechanism.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an arc cutting stapler. Background technique [0002] In medical surgery, since the first staple products appeared in the 1960s, medical staplers have become an indispensable medical device in the process of assisting incision suturing. Various surgical staplers are widely used in surgical operations to suture human digestive tract tissue, respiratory tract tissue and vascular tissue. The application of stapler can reduce operation time and improve operation quality. They are usually used for end-to-end, end-to-side and side-to-side suture operations such as esophagus, stomach, duodenum, small intestine, colon and rectum in the digestive tract, or hemorrhoidectomy and gastric pylorostomy to form channels or close incisions. It is used in the suturing of lungs, trachea and vascular tissues in the respiratory tract, especially for the suturing of organs and tissues th...

AI Technical Summary

Problems solved by technology

[0005] However, the currently existing cutting and suturing devices all have a flat suturing surface, and the cutting size in the same space is small; when the surgical incision is long, when a suturing is completed, it often needs to be supplemented again to obtain a suitable suture length. , to ensure that the surgical incision is completely sutured

In addition, the blades of the cutting knife in the commonly used cutting and suturing devices are all parallel to the length direction of the suture line. The tissue that needs to be separated is cut. Since the thickness of the clamped tissue in the jaws may be inconsistent, it is easy to cause incomplete cutting in this way, and the operation is laborious.

At the same time, due to the large number of staples and the long suture size, the resistance encountered when the staples pass through the tissue is relatively large, especially the lower part of the staple cartridge assembly is prone to deflection, so that the staples cannot be formed correctly, and it is easy to cause bleeding at the suture port, resulting in failed operation

[0006] This shows that there are obvious deficiencies and defects in the structure and use of the stapler in the prior art, and it is urgent to be further improved.

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