Endobiliary drainage stent implanted through choledochoscope

Abstract

The invention discloses an endobiliary drainage stent implanted through a choledochoscope, including a drainage stent, wherein one end surface of the drainage stent is fixed with an anti-falling arm;one side of the anti-falling arm is provided with a graduation mark relative to the inside of the drainage stent, and the other end surface of the drainage stent is provided with a first side hole; one side of the first side hole is provided with a second side hole, the opposite surface of the first side hole is provided with a fourth side hole; and the opposite surface of the second side hole isprovided with a third side hole. The endobiliary drainage stent implanted through a choledochoscopethe is routinely placed after exploration of the common bile duct, at the completion of the placement, the opening of the common bile duct can be directly sutured without long-term T tube, and the external drainage is changed into the internal drainage under the physiological condition, so that bileloss is avoided, and the quality of life of the patient is obviously improved, and the biliary drainage is ensured, and the jaundice is reduced after the operation, and the liver function is protected, and the probability of bile leakage after the direct suture of the bile duct is greatly reduced.

Description

Technical field [0001] The invention belongs to the technical field of medical devices, and specifically relates to a biliary drainage stent implanted through a choledochoscope. Background technique [0002] Biliary drainage stent refers to placing a biliary stent into the patient's body through an endoscope. It is generally used for the treatment of gallstones and other diseases and for postoperative recovery of large-area trauma. [0003] The existing biliary drainage stents still have some shortcomings when used: At present, there are two main treatments for common bile duct stones. One is to remove the common bile duct stones by retrograde cholangiopancreatography. The defect is the destruction of the sphincter of Otis, and Intrahepatic stones and gallbladder stones cannot be removed; the other is common bile duct exploration and T-tube drainage. The defect is that the T-tube is drawn out of the body through the abdominal wall. It usually requires patients to live with T-tube f...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide biliary internal drainage stent implantation through choledochoscope, to solve the main two schemes for the current treatment of common bile duct stones proposed in the above-mentioned background technology, one is to remove common bile duct stones by retrograde cholangiopancreatography, the defect In order to destroy the Otis sphincter, and it is impossible to remove intrahepatic and gallbladder stones; the other is to explore the common bile duct to remove stones, and T-tube drainage. The defect is that the T-tube is led out of the body through the abdominal wall, and patients usually need to live with the T-tube for 1-2 months , life is inconvenient, with the popularization of laparoscopic common bile duct exploration surgery, since abdominal adhesions caused by laparoscopic surgery are lighter than those caused by open surgery, patients often need to wear T-tubes for a longer time, even 3 months, in order to reduce the number of patients wearing T-tubes There are reports of direct suturing of the common bile duct after common bile duct exploration, but this technique is not suitable for patients with severe jaundice who need to maintain smooth biliary drainage after surgery and reduce jaundice as soon as possible, and because of high biliary pressure after direct suture, Bile leakage at the suture is more common, which affects the recovery of patients after surgery

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