Artificial sinus tract duct for laparoscopic choledochoscope

Abstract

The invention discloses an artificial sinus tract duct for a laparoscopic choledochoscope, and belongs to the technical field of medical equipment. The artificial sinus tract duct comprises a sleeve body, wherein the tail of the sleeve body is provided with a U-shaped cylinder fixing device in a magnified shape; the front end of the sleeve body is connected with a duct head, the duct head comprises a connecting part and a movable part, the connecting part is connected with the sleeve body, and the movable part is composed of multiple arc-shaped petals; in an installation state, the sleeve bodyis inserted into the biliary tract, and the U-shaped cylinder fixing device is fixed to the abdominal wall; when the choledochoscope stretches into the biliary tract from the artificial sinus tract duct for the laparoscopic choledochoscope, the arc-shaped petals expand around to be attached on the biliary tract wall. The artificial sinus tract duct for the laparoscopic choledochoscope is used inthe laparoscopic choledochoscope exploratory surgery, a channel is built between a puncture hole and a bile duct incision, so that the choledochoscope can go into the bile duct and out of the bile duct rapidly, thereby reducing the intraoperative operation time.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an artificial sinus tube for laparoscopic choledochoscopy. Background technique [0002] With the advancement of various laparoscopic surgical instruments and techniques, laparoscopy combined with choledochoscopy for biliary tract exploration (double mirror combined with biliary tract exploration) has been more and more widely used. Diagnosis and treatment can be carried out after the choledochoscope enters the bile duct during the operation, including biopsy and stone removal under the choledochoscope. [0003] Intraoperative choledochoscopy in laparoscopic surgery is different from conventional postoperative transsinus choledochoscopy: on the one hand, the sinus tract is equivalent to a natural channel, which can play a supporting role, and the choledochoscope is more convenient to enter and exit; on the other hand, In laparoscopic surgery, choledochoscopy ...

AI Technical Summary

Problems solved by technology

(1) The process is cumbersome and time-consuming: the choledochoscope needs to be inserted into the abdominal cavity by poking the card first, then walk freely in the abdominal cavity for a certain distance, and then enter the bile duct with the help of an assistant

The specific manifestations are as follows: First, in order to help the choledochoscope to enter the bile duct, usually several stitches need to be sutured at the opening of the bile duct to help lift the bile duct, so that the choledochoscope can be easily entered, and the operation is time-consuming

Secondly, especially for patients with stone removal by choledochoscopy, it is necessary to enter and exit the bile duct several to dozens of times, each time an assistant is needed to enter the bile duct, and the operation is cumbersome

(2) Difficult to control the path of travel: lack of natural channels, lack of supporting devices for choledochoscopes, and the angle is easily distorted during operation, making it difficult to select intrahepatic bile ducts, and at the same time, it is easy to slip out of the bile ducts

(3) Auxiliary equipment is required: lack of supporting devices, choledochoscope needs pliers or additional equipment to fix the choledochoscope, which is easy to cause damage to the choledochoscope

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