Laser optical fiber tool for bile-duct laser stone-breaking

Abstract

The invention relates to a laser fiber instrument for bile duct laser lithotripsy, which is structurally characterized in that the instrument is a lathy soft conveying tube which is made of metal or plastics and of which the length is 1.4 to 1.6 meters; an inflating passage, a wire guiding passage and a laser fiber passage are arranged in the conveying tube; the periphery of the front section side of the conveying tube is covered with a ball bag communicated with the inflating passage and fully attached to the outer wall of the conveying tube when the ball bag is not inflated, and the front end of the conveying tube is provided with an annular radiation mark. A flared opening is at the top end of the conveying tube, the tail end of the flared opening is communicated with the wire guiding passage, and the front end of the laser fiber passage is a conical opening capable of accommodating a laser fiber head and positioned on the side wall of the flared opening. The laser fiber instrument can convey the laser fiber to bile duct calculus more smoothly through a guide wire and the wire guiding passage under the condition that the conveying tube cannot be smoothly bent in local human body, shortens time of laser lithotripsy, improves curative effect, and solve the significant problem of the bile duct laser lithotripsy for the human body.

Description

technical field [0001] The invention belongs to a medical device, in particular a laser optical fiber device used for laser lithotripsy of human bile ducts. Background technique [0002] Since the emergence of endoscopic reverse cholangiopancreatography in the 1970s, followed by peroral endoscopic stone removal, choledocholithiasis has become a routine treatment method for endoscopists. This minimally invasive treatment has solved the suffering of a large number of patients. , so that the patients who have no surgical conditions according to the surgical operation have been treated well, but due to the small opening of the bile duct papilla, even if the bile duct sphincterotomy is performed, there are still a large number of patients whose stones cannot be removed, and the stones in the bile duct cavity become The necessary condition for stone removal under endoscopy is mechanical lithotripsy, which is to put the stones in the mesh fence for crushing, but if the stones canno...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the major problem of laser lithotripsy for human bile ducts, the object of the present invention is to provide a laser optical fiber appliance for laser lithotripsy for bile ducts

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