Novel disposable leakage-proof tubular anastomat

Abstract

The invention discloses a novel disposable leakage-proof tubular anastomat, which comprises an annular knife arranged in a knife body assembly and a nail propping seat connected with the knife body assembly, and is characterized by further comprising an annular gasket concentrically arranged in the knife body assembly and the nail propping seat; wherein the cutter body assembly is provided with two groups of annular cutters comprising an outer-ring annular cutter and an inner-ring annular cutter; the tip of the outer-ring annular cutter is in contact with the outer contour surface of the annular gasket, and the inner-ring annular cutter penetrates through the inner ring of the annular gasket. The intestinal anastomat has the advantages that the redundant intestinal wall of the anastomoticnear-end intestinal canal droops, the anastomotic stoma is protected, the anastomotic stoma cannot crack due to too high pressure in the intestinal cavity, anastomotic stoma leakage is avoided, and the intestinal anastomotic near-end intestinal canal is suitable for intestinal anastomosis under the condition of intestinal obstruction. Operation risks can be reduced, medical resource consumption isreduced, and the risk of enterostomy of a patient is reduced.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a novel disposable leak-proof tubular stapler. Background technique [0002] Disposable tubular stapler is a surgical instrument used to reconstruct the continuity of the digestive tract, that is, intestinal anastomosis, and has been widely used clinically. The traditional disposable tubular stapler is mainly composed of anvils and components, and the knife body component contains single-arranged annular staples and a circular knife. Its working principle: insert the proximal intestinal tube into the anvil, insert the distal intestinal tube into the assembly, and then align the anvil and the knife body assembly. When the stapler is activated, the staples arranged in a circular shape in the knife body assembly will staple the proximal intestinal canal to the distal intestinal canal, and a set of circular knives in the knife body assembly will cut off the redundant intestinal wa...

AI Technical Summary

Problems solved by technology

② Due to some reasons, the intestinal tube to be anastomotic is in a state of inflammation and edema, which reduces the healing ability of the intestinal tube at the anastomotic site and prolongs the natural healing time of the intestinal tube at the anastomotic site

③ Due to the manufacturing process of the existing disposable tubular stapler, some staples are poorly formed, resulting in weak anastomosis and anastomotic leakage

[0005] Problems faced in clinical medical work: ① When intestinal obstruction occurs, the intestinal contents in the intestinal tube at the proximal end of the obstruction cannot enter the distal intestinal tube due to obstruction, resulting in inflammation and edema in the intestinal tube at the proximal end of the obstruction, and the intestinal obstruction at the proximal end A large amount of intestinal content will accumulate in the tube. If an intestinal anastomosis is performed at this time, the probability of anastomotic leakage is extremely high

The two operations significantly increased the patient's pain and treatment costs

② Intestinal anastomosis under normal conditions may cause poor stapling and anastomotic leakage due to the self-reason of the one-time use of the tubular stapler

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