Double-cavity calculus removing balloon

Abstract

The invention provides a double-cavity calculus removing balloon. The calculus removing balloon comprises a catheter body, a balloon part arranged at the front end of the catheter body and a handle part arranged at the rear end of the catheter body. A first channel and a second channel are formed in the catheter body, the first channel and the second channel are respectively connected to a first handle and a second handle, the first channel is used for inflating the balloon part, the second channel is used for injecting a contrast medium for cholangiography, the front end of the balloon part is provided with a head part, the head part is a single-channel tube, and the tube wall of the tube is provided with a guide wire through hole for a guide wire to pass through. During use, the tail endof the guide wire sequentially penetrates through the front end of the head part and the guide wire through hole, the contrast medium is injected through the second handle for cholangiography, and the balloon is filled with gas injected through the first handle for calculus removal. According to the invention, a guide wire side hole is formed in a catheter in front of the balloon, the balloon anda body part are not provided with guide wire channels but only provided with an injection channel and a balloon channel, and therefore a balloon bile duct can be made thinner, and the requirements ofa manufacturing process and materials are lower.

Description

Technical field [0001] The invention relates to the technical fields of minimally invasive medical technology and surgical instruments, in particular to a double-cavity stone extraction balloon. Background technique [0002] Common bile duct stones are a common disease and frequently-occurring disease in my country. Blocking the common bile duct by stones can lead to poor bile excretion, which in turn induces complications such as acute cholangitis, obstructive jaundice, liver damage, chills, fever, abdominal pain, and jaundice. Severe cases can even lead to shock. Long-term stone stimulation has the risk of bile duct cancer, which is an important disease endangering human health. The current treatment options for choledocholithiasis include open bile duct exploration, laparoscopic biliary exploration, endoscopic retrograde cholangiopancreatography (ERCP) stone retrieval, percutaneous transhepatic cholangiography (PTCD) + fistula dilation + percutaneous transhepatic biliary tract ...

AI Technical Summary

Problems solved by technology

Some balloons combine the guide wire channel and the contrast channel to form a double channel balloon, but the clinical use is more cumbersome, and the guide wire needs to be pushed out when performing cholangiography

At present, conventional balloons adopt a guide wire channel through the balloon catheter, and there are the following problems and deficiencies in the clinical use process: 1. The operation of inserting the balloon is completed by the operator, while filling the balloon, angiography and inserting the guide wire The operation of the silk is done by the assistant

In the process of inserting the balloon, the guide wire is easily inserted into the peripheral bile duct by the balloon, causing pain to the patient; in the process of pulling back the stone, the guide wire is easily pulled into the duodenum, and the bile duct needs to be redone. Intubation increases the risk of surgery and prolongs the operation time; 2. The diameter of the guide wire used clinically is generally 0.89mm, and the guide wire channel is generally 1mm, plus the injection channel and the balloon channel, while maintaining a certain wall thickness, the balloon The diameter of the catheter is generally greater than 2mm, resulting in some small diameters or when stones are incarcerated, the balloon catheter cannot reach above the stone, and the balloon at the front of the catheter also increases the resistance of the balloon catheter

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