Cutting assembly of stapler

Abstract

The invention discloses a cutting assembly of a stapler, and belongs to the field of medical instruments. Staple molding heights of suturing staples of the cutting assembly are inconsistent. By using the height difference of staple pushing grain tooth pieces, under the condition of the consistent heights of the suturing staples, the molding heights are inconsistent, and the outer molded staples are higher than the inner molded staples. The inner molded staples are low to be beneficial to stop bleeding, the outer molded staples are high to be beneficial to the blood supply for tissues to cutting edges, and the healing of the tissues is fast. A staple cartridge surface is designed into a ladder shape, the middle position is higher than the positions of the two sides, so that the squeezing force of the tissues is dispersed, the stress of the middle surface is greater to be beneficial to spread tissue fluid to the two sides, the time for compressing the tissues to the specified height is effectively shortened, and the operation time is shortened. A tissue stop stand column is used for limiting tissue pull-in positions, and interacts with tissue positioning staples to ensure that the length of staple lines always exceeds that of clamping tissues, complete suturing of the tissues is ensured, and no exposure point is generated.

Description

technical field [0001] The invention belongs to the field of medical instruments, and in particular relates to a stapler cutting assembly, in particular to a cutting assembly suitable for linear cutting staplers, circular staplers and arc-shaped staplers. Background technique [0002] Stapler is a commonly used clinical instrument, the main purpose is to perform tissue separation, resection and anastomosis. Whether it is a linear cutting stapler or a circular cutting stapler, the cutting component is an important part. During use, it is necessary to place the tissue between the anvil and the staple cartridge on the head of the instrument, then squeeze the handle, and the staple cartridge will move closer to the anvil. The staples in the staple cartridge are pushed from the staple cartridge holes into the nail grooves and extruded into a B-shape. The currently used cutting assembly of multiple rows of staples arranged on the surface of the staple cartridge has the same heig...

AI Technical Summary

Problems solved by technology

The currently used cutting assembly with multiple rows of staples arranged on the surface of the staple cartridge has the same height of staples on the inside and outside, which is not conducive to hemostasis and tissue blood supply.

In addition, there is no drop on the surface of the staple cartridge, the pressing force on the tissue is not dispersed, the tissue fluid is not easy to drain, and it takes a long time for the tissue to be compressed to a certain thickness, which is time-consuming and laborious to use

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