Balloon catheter and shock wave generating system

Abstract

The invention relates to a balloon catheter and a shock wave generating system. The balloon catheter includes a catheter main body, a balloon and an electrode. The electrode includes an inner electrode and an outer electrode. The outer electrode is arranged on the outer surface of the catheter main body located in the balloon. An insulating inner electrode cavity is provided inside, the inner electrode cavity extends from the proximal end of the catheter body to the catheter body located in the balloon, and the inner electrode is movably inserted into the inner electrode cavity. The balloon catheter and the shock wave generating system provided by the present invention are provided with an inner electrode cavity, and the inner electrode is movably passed through the inner electrode cavity. Replace the balloon catheter, thereby prolonging the life of the balloon catheter, reducing the operation time and reducing the operation cost.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and particularly relates to a balloon catheter and a shock wave generating system. Background technique [0002] At present, clinical cardiovascular stenosis is complex and diverse. Cardiovascular stenosis refers to human arterial and venous blood vessels, including coronary, peripheral, intracranial and other blood vessels. Due to abnormal lipid metabolism, the lipids in the blood are deposited in the originally smooth blood vessels. On the intima of blood vessels, atheromatous lipid plaques gradually accumulate. Over time, these plaques increase and even calcify, causing stenosis in the vascular lumen, blocking blood flow, and causing ischemia in downstream blood vessels and bodies, resulting in corresponding clinical manifestations. . If the stenosis occurs in the coronary artery, it will cause palpitations, chest pain, dyspnea, and angina pectoris, and in severe cases, it will lead...

AI Technical Summary

Problems solved by technology

[0003] See the invention patent with application number CN202010453163.0, which discloses a blood vessel recanalization system for cardiovascular stenosis, including a balloon, an energy generation controller, and a catheter. The energy generation controller can emit and regulate specific frequency ultrasound The electrode pairs form cavitation bubbles and then generate shock waves. The shock waves hit the calcified area to crush the calcified lesions. The outer electrode and the inner electrode are ring-shaped electrodes, and the inner electrode and the outer electrode are respectively fixed on the inner tube and the inner tube. On the outer tube, in addition, the electrode pair needs to be connected to the energy generation controller through the electrode wire. The electrode wire is welded on the electrode pair, and the wiring is complicated; the life of the electrode determines the life of the balloon catheter. If the electrode is continuously worn out, the life of the balloon catheter will be reduced. The entire balloon catheter needs to be replaced, and the balloon catheter needs to be replaced many times during the operation, resulting in prolonged operation time and increased operation cost, which greatly affects the treatment effect

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