Rotatable duodenal papillotome

Abstract

The invention discloses a rotatable duodenal papillotome. The rotatable duodenal papillotome comprises an outer sleeve, an outer sleeve handle and a papillotome, wherein the papillotome is located in the outer sleeve, the outer sleeve handle is arranged at one end of the outer sleeve, and the outer sleeve and the papillotome are in a gear shape. According to the rotatable duodenal papillotome, the metal outer sleeve is additionally arranged on the outer face of an original duodenal papillotome, has certain elasticity and tenacity and can drive the duodenal papillotome in the outer sleeve to rotate when rotating, in this way, when entering a gall bladder or left and right intrahepatic bile ducts, a duodenal papilla cannula or superselective guide wire can accurately rotate in the catheter direction to meet the requirement of surgical operation and increase the success rate of surgical operation. The rotatable duodenal papillotome has the advantages of being convenient to operate, high in success rate and suitable for application and popularization.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, and relates to a rotatable duodenum nipple incision knife. Background technique [0002] In 1968, Mecune et al first reported "endoscopic retrograde cholangiopancreatography (ERCP)" in the Annals of Surgery. In 1973, Kawai et al. first reported the use of a push knife for sphincterotomy. In 1974, Classen and Demling applied The successful nipple incision with the pull bow knife marks the birth of therapeutic ERCP technology. After continuous development, ERCP has become a complete discipline system integrating diagnosis and treatment. In the past 30 years, related new devices and technologies have emerged continuously. Endoscopic technology represented by ERCP has laid the foundation for the minimally invasive treatment of biliary and pancreatic diseases. It replaces most surgical treatments, greatly improves the success rate of treatment, and reduces the complication rate. At pres...

AI Technical Summary

Problems solved by technology

[0003] During the ERCP operation, the most important cannulation of the bile duct or pancreatic duct, although generally, the opening of the bile duct is in the direction of 11 o’clock, and the opening of the pancreatic duct is in the direction of 1 o’clock, but the directions of the pancreatic duct and bile duct are ever-changing, so for some patients, in During intubation, it is necessary to fine-tune the direction of the duodenal paptotomy knife, so as to increase the success rate of intubation. However, the duodenal paptotomy knives produced by all companies are made of plastic material, which is soft and can be rotated. At this time, the strength of the operating end cannot be transmitted to the front end of the incision knife, so it cannot be rotated. Therefore, the currently used duodenal nipple incision knife determines the direction of the knife head when it is inserted into the endoscope, and it cannot be rotated at all, which leads to pancreas, The direction of the front end of the duodenum knife cannot be adjusted during bile duct intubation, which inevitably reduces the success rate of intubation, especially for some difficult types of pancreatic and bile duct intubation.

Moreover, the duodenal nipple incision cannot be carried out in the direction envisaged, which increases the risk of surgical bleeding and perforation

For some special patients such as gallbladder lesions, patients with left or right intrahepatic lesions, after successful intubation, it is necessary to use a duodenal papillatomy knife to send the guide wire to the lesioned parts such as gallbladder, left or right The right intrahepatic bile duct is used to complete other operations such as dilation of the stenosis, stone removal, and stent placement, but the longitudinal axis of the common bile duct is not in the same direction as the longitudinal axis of the cystic duct and the left and right intrahepatic bile ducts. Therefore, when sending the guide wire into the above-mentioned parts, it is necessary to fine-tune the direction of the front end of the duodenal paptotomy to increase the success rate of the operation. However, due to the non-rotatability of the current duodenal paptotomy, the There are great difficulties in the operation of the above parts, and the success rate is low

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