Multidirectional endoscopic sphincterotomy knife

Abstract

The invention provides a multidirectional endoscopic sphincterotomy knife. The endoscopic sphincterotomy knife comprises an outer sleeve, an electrotome mechanism arranged on the outer sleeve and a guide wire channel and a contrast agent channel which are arranged in the outer sleeve, the front end of the outer sleeve is conical and is provided with an opening, the main body parts of the guide wire channel and the contrast medium channel are cavities parallel to each other, a connecting rod is arranged between two metal wires of the incision knife, a metal wire length adjusting mechanism is connected to the tail ends of two metal wires, and a metal wire angle adjusting mechanism is connected to one of the electrotome metal wires. According to the two incision knife metal wires at the frontend, rotation of the incision knife metal wires is achieved by moving a sliding handle, then the distance between two guide wires is controlled, the two incision knife guide wires are made to be close to incision in the 9 o'clock direction and the 0 o'clock direction of papilla sphincter respectively, and the postoperative pancreatitis occurrence rate is reduced. By rotating a duodenoscope leftwards, the duodenum annular plica can be extruded, the visual field is enlarged, and meanwhile, the electric burning damage of the duodenum plica is avoided.

Description

technical field [0001] The invention relates to the technical field of biliary and pancreatic duct medical devices, in particular to a multidirectional papillary sphincterotomy knife. Background technique [0002] With the continuous development of endoscopic technology and the continuous improvement of its accessories, duodenoscopy (ERCP) has become an important measure for the diagnosis and treatment of hepatobiliary and pancreatic diseases, including choledocholithiasis, bile duct injury, bile duct stricture, and liver transplantation. Postoperative biliary complications, etc. Compared with traditional laparotomy, this technique has the advantages of less trauma, high safety factor, and faster recovery. Under direct vision, it can detect hepatobiliary and pancreatic diseases that cannot be detected by conventional liver, gallbladder, spleen and pancreas CT, ultrasound and magnetic resonance examinations, and treat them at the same time, such as duodenal papillitis, papil...

AI Technical Summary

Problems solved by technology

This papillary sphincterotomy knife has the following deficiencies: 1. The opening of the head end of the papillary sphincterotomy is conical, and it is difficult to insert the papillary sphincterotomy into the common channel of the duodenal papilla. into the bile duct or pancreatic duct, especially for duodenal papilla with a single-hole opening, and repeated intubation may easily lead to duodenal papilla edema, increase the difficulty of intubation, intraoperative bleeding, postoperative pancreatitis, etc. The incidence of complications; 2. The incision direction of the nipple sphincterotomy knife can be adjusted in a small range. After the wire is tightened, the wire is mostly located at the 12 o'clock direction of the nipple, and the incision site is 1 o'clock away from the duodenal papilla Too close can easily lead to pancreatic duct sphincter papillary edema and postoperative pancreatitis; 3. In some patients, the duodenal papilla is covered by duodenal circular folds, resulting in unclear observation of the duodenal papilla, and papillary sphincterotomy During the process, it is easy to cause burns of the duodenal folds, and there is even a risk of necrosis and perforation of the intestinal wall

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