Cholelithotomy sheath with air bag

Abstract

The invention provides a cholelithotomy sheath with an air bag, which comprises a tubular sheath body, a guide rod, a rubber cylinder, an air charging system and a closing device, wherein, the tubular sheath body is made of plastic material; two ends of the tubular sheath body are opened; an inserting end of the tubular sheath body is an oblique opening; the two ends of the rubber cylinder are opened; the two ends of the rubber cylinder are fixedly connected with a rubber cylinder mounting position of the tubular sheath body respectively; a rubber cavity is formed by the rubber cylinder and the rubber cylinder mounting position; radial air outlet holes are formed in an air guide passage positioned inside the rubber cylinder; the other end of the air guide passage is communicated with an air inlet pipe; the air inlet pipe is matched with the air charging system and the closing device; the guide rod is matched with the tubular sheath body in a detachable manner; and a guiding rod extends out of the inserting end of the tubular sheath body. By adopting the structure, the air charging system charges air and the rubber cylinder expands after the cholelithotomy sheath is inserted through a surgery incision of a gall bladder, and the rubber cylinder is jointed with the inner wall of the gall bladder after expanding, so that the tubular sheath body can be prevented from being withdrawn from the gall bladder; the cholelithotomy sheath is convenient to remove calculus, can prevent washing fluid entraining crushed calculus from flowing in an abdominal cavity through the incision of the gall bladder, enables the operation to be carried out smoothly, and avoids postoperative infection.

Description

technical field [0001] The invention relates to a medical device, in particular to a device for removing stones from the gallbladder. Background technique [0002] In the current prior art, a gallbladder-preserving and stone-removing sheath includes a tubular sheath body. Existing problems: After the tube sheath penetrates into the gallbladder through the surgical incision on the gallbladder, the sheath often shifts when performing stone extraction; one is that new trauma may be caused to the gallbladder; two tube sheaths are displaced relative to the gallbladder ,There are security risks. In addition, during the stone extraction process, the flushing fluid entrained gravel flowed into and polluted the abdominal cavity through the gap between the sheath body and the gallbladder incision, which brought inconvenience to the operation, and there was a risk of infection in the abdominal cavity after surgery. Contents of the invention [0003] The purpose of the present inven...

AI Technical Summary

Problems solved by technology

Existing problems: After the tube sheath penetrates into the gallbladder through the surgical incision on the gallbladder, the sheath often shifts when performing stone extraction; one is that new trauma may be caused to the gallbladder; two tube sheaths are displaced relative to the gallbladder ,There are security risks

In addition, during the stone extraction process, the washing fluid entrains gravel into the abdominal cavity through the gap between the sheath and the gallbladder incision and contaminates the abdominal cavity, which brings inconvenience to the operation, and there is a risk of infection in the abdominal cavity after surgery.

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