Calculus removing water jet scalpel lithotripsy mesh basket for duodenoscope

Abstract

The invention discloses a calculus removing water jet scalpel lithotripsy mesh basket for a duodenoscope, and belongs to the technical field of medical instrument manufacturing. The calculus removingwater jet scalpel lithotripsy mesh basket is composed of a scalpel head, a tube body and a mesh basket body. The scalpel head is made of nickel-titanium alloy and is cylindrical, a water injection channel and a mesh basket wire channel are formed in the scalpel head, water outlets in the upper surface, which is an arc-shaped concave surface, of the scalpel head are annularly arranged, an opening of the mesh basket wire channel is formed in the side wall of the head end, and four mesh basket steel wires are arranged in the mesh basket wire channel; and the center of the bottom surface of the scalpel head is an arc-shaped concave surface, and the concave surface is provided with annularly-arranged water inlets and four mesh basket wire holes. The tube body is a single-channel tube, a mesh basket connecting rod and a high-pressure water tube penetrate through the interior of the tube body, the mesh basket connecting rod is connected with the mesh basket steel wires, the high-pressure water tube is divided into two layers, the inner layer is an aluminum-magnesium alloy tube, and the outer layer is a steel wire tube spirally wound outside the aluminum-magnesium alloy tube. A connector is a single-channel hard steel tube, and a spiral is arranged outside the tube wall and communicates with the high-pressure water tube. The calculus removing water jet scalpel lithotripsy mesh basket has the advantages that the calculus removing water jet scalpel lithotripsy mesh basket is suitable for lithotripsy of all calculi, the calculi can be fixed, broken calculus discharge is promoted, andthe safety is improved.

Description

technical field [0001] The invention belongs to the technical field of medical equipment manufacturing, and relates to a minimally invasive medical technology and a surgical instrument, which are used for removing stones and crushing stones under a duodenoscope, in particular to a stone-taking water knife for a duodenoscope Gravel Mesh Basket. Background technique [0002] Choledocholithiasis is a common and frequently-occurring disease in my country. Blockage of the common bile duct by stones can induce complications such as acute cholangitis, obstructive jaundice, and acute biliary pancreatitis. Symptoms include chills, fever, abdominal pain, and jaundice. Cause shock, long-term calculus stimulation has the risk of cholangiocarcinoma, which is an important disease that endangers human health. Treatment options for common bile duct stones include open biliary tract exploration, laparoscopic biliary exploration, endoscopic retrograde cholangiopancreatography (ERCP), percutan...

AI Technical Summary

Problems solved by technology

The head end of the above-mentioned technique has the following disadvantages: 1. Before the stone is completely removed, the risk of large papillary sphincter incision and large balloon papillary expansion is relatively high, and short-term complications such as nipple hemorrhage, acute pancreatitis, and perforation are prone to occur during the perioperative period. And long-term complications such as reflux cholangitis, early recurrence of stones, and cholangitis; 2. Huge common bile duct stones often cause common bile duct obstruction. Due to the narrow space, it is difficult to remove huge common bile duct stones by placing a stone basket through ERCP ;3. The efficiency of mechanical stone crushing with mesh basket is low, and some hard cholesterol stones are difficult to be crushed by the mesh basket; , can only choose general anesthesia for biliary tract exploration surgery, which is risky; 5. The placement of SpyGlass lithotripsy under direct vision through ERCP is a new technology developed recently. The cost is extremely high, ordinary hospitals have not carried out this technology, and ordinary families cannot afford the huge and high treatment costs

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