A laparoscopic specimen bag capable of automatic opening and closing

Abstract

The invention relates to a laparoscope specimen bag capable of automatically opening and closing. The bag mouth of a bag body is of a two-layer structure which consists of an outer layer and an inner layer; an inflation chamber is communicated with an air pipe; the other end of the air pipe is connected with an inflation / deflation control device; the inflation / deflation control device comprises a valve body; the valve body is formed by butting a left valve body and a right valve body; one end of the right valve body is a closed end; an inflation hole is formed in one end of the left valve body; a baffle, a piston and a spring I are arranged in the cavity of the valve body; the cavity of the valve body is divided into two parts by the baffle; a through hole is formed in the central position of the baffle; the through hole is provided with an airtight film; the piston is arranged in the cavity between the baffle and the closed end of the valve body. The specimen bag disclosed by the invention is used for abdominal operation, and during the operation process, the specimen bag is put in an abdominal cavity; automatic opening of the bag mouth of the specimen bag can be realized; moreover, after a specimen is placed in the specimen bag, the bag mouth automatically contracts, and the process of taking out the specimen is convenient and fast.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a laparoscopic specimen bag capable of automatic opening and closing. Background technique [0002] In laparoscopic surgery, instruments are inserted into the abdominal cavity through a 5-10mm diameter cannula placed on the abdominal wall. Small specimens such as the excised appendix and biopsy specimens are generally taken out through the small incision where the 10mm diameter cannula is placed, without making another incision. When taking out the specimen, it needs to be put into the specimen bag to avoid falling into the abdominal cavity and making it difficult to find, and to avoid contaminating the small incision on the abdominal wall. The common specimen bag currently used is inserted into the abdominal cavity through a cannula and filled with small specimens. It is carried out under laparoscopic monitoring, so it is necessary to replace the sleeve or observation ho...

AI Technical Summary

Problems solved by technology

[0002] In laparoscopic surgery, instruments are inserted into the abdominal cavity through a 5-10mm diameter cannula placed on the abdominal wall. Small specimens such as the excised appendix and biopsy specimens are generally taken out through the small incision where the 10mm diameter cannula is placed, without making another incision. When taking out the specimen, it needs to be put into the specimen bag to avoid falling into the abdominal cavity and making it difficult to find, and to avoid contaminating the small incision on the abdominal wall. The common specimen bag currently used is inserted into the abdominal cavity through a cannula and filled with small specimens. It is carried out under laparoscopic monitoring, so it is necessary to replace the sleeve or observation hole when taking it out, or align the adjacent sleeve with an instrument that holds the specimen bag. The operation is cumbersome and difficult, and it is easy to cause the specimen bag to rupture and the specimen to fall. , or cause damage to the abdominal organs. When the specimen is loaded and taken out, it is necessary to repeatedly clamp the mouth of the bag with laparoscopic operating instruments. During the process of taking the specimen out of the abdominal cavity, the specimen bag will fall into the abdominal cavity if one is not careful, or even The specimen slipped out of the bag, causing the operation to fail

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