Positioning device for intracorporeal lithotripsy

Abstract

An in-vivo lithotripter positioning device comprises an outer canal, an inner canal, a multi-way canal and an airbag. The outer canal and the inner canal are arranged coaxially, one ends of the outer canal and inner canal are communicated with the multi-way canal, the other end is a free end, and the outer canal bends at the free end towards the inner canal and is in plastic package with the inner canal; the multi-way canal is provided with a liquid input connecting port, an electrode input connecting port and an airbag controller, the liquid input connecting port and the electrode input connecting port are gathered in the multi-way canal and are communicated with the inner canal, and the airbag controller is communicated with the outer canal through the multi-way canal; the airbag sleeves the outer canal, the outer canal inside the airbag is provided with a plurality of air holes penetrating the outer canal. The device is capable of expanding the channel of stones, electric shock is performed avoiding the human body cavity wall tissue, the stone electric shocking probability is increased, and the human body cavity wall is prevented from the electric shocking.

Description

technical field [0001] The invention relates to a positioning device for a lithotripsy instrument in the body, which is an instrument accessory capable of accurately controlling the position where an electrode hits a calculus, and belongs to the field of medical instruments. Background technique [0002] Common bile duct and intrahepatic bile duct stones are common diseases that endanger human health. The incidence of hepatolithiasis in my country is more than 80% in calculous biliary tract diseases, which is characterized by extensive lesions, complex conditions, high incidence of complications, and high postoperative residual stones or recurrence rate. In the prior art, it is a commonly used method to remove common bile duct stones through the duodenal papilla using endoscopic technology. Conventional endoscopic stone removal techniques include endoscopic sphincterotomy and basket stone removal, and mechanical basket lithotripsy is the most widely used. However, there ar...

AI Technical Summary

Problems solved by technology

[0003] The electrode can be positioned to crush stones is a preferred treatment plan. The technical problem of the traditional electrode lithotripsy instrument is how to control the electrode to accurately hit the stone, but there is no mature control method and auxiliary equipment, usually relying on the doctor's experience , the electrode is easy to hit the deflection, hitting the duodenal wall, causing tissue damage

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