Invivo-lithotriptor electrode or fiberoptic positioner

Abstract

The invention is concerned with electrode of instrument to smash stone inside of people's bile duct or optical fiber localizer, belonging to medical treatment instrument. It will cover and take out of the calculi or fix the calculi and locates the electrode of instrument or optical fiber localizer aiming at the center position of the calculi and avoid hurting the wall of bile duct. The localizer has a triton joint, a soft outer tube connecting with the first end of triton, calculi metal net orientation piece and electrode of instrument or optical fiber at the port of soft outer tube, and the third end is the liquid injecting end. The amelioration is setting soft sliding inner tube inside of the soft outer tube, one end of calculi metal net orientation piece is fixing on the top of soft inner tube, the assistant pushing tube is inserting into the second end of the triton and connecting with the second end of the soft inner tube, and the said electrode of instrument or optical fiber localizer is inserting into the assistant pushing tube and crossing the soft inner tube and calculi metal net orientation piece.

Description

technical field [0001] The invention belongs to a medical device for performing operations on gallstones, in particular to an electrode or an optical fiber positioner for a lithotripsy instrument in the body when carrying out lithotripsy for bile duct stones under a duodenoscope. 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, with the characteristics of 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, t...

AI Technical Summary

Problems solved by technology

However, such methods require the use of a mother-to-duodenum mirror, which is expensive and difficult to equip in general hospitals, and the operation technology of the mother-to-child mirror combined with laser or electro-hydraulic lithotripsy for the treatment of biliary calculi is complicated and requires With the cooperation of several endoscopic experts, the technical requirements are high, and it cannot be widely carried out.

Since the direct contact between the electro-hydraulic electrode probe and the wall of the bile-pancreatic duct cannot be avoided, there is an increased risk of bile-pancreatic duct damage, which limits the wide application of electro-hydraulic lithotripsy.

For laser lithotripsy, there is also the possibility of damage to the bile duct wall due to biliary stenosis or biliary deformity, which increases the risk of routine use of duodenoscope laser lithotripsy

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