Shock wave electrode device and shock wave catheter system

Abstract

The invention provides a shock wave electrode device and a shock wave catheter system. The shock wave electrode device comprises a flexible printed circuit and an electrode assembly. The flexible printed circuit comprises a flexible substrate, a conductive pattern layer and a covering layer, and the electrode assembly is integrated on the conductive pattern layer of the flexible printed circuit or the surface of the conductive pattern layer; the electrode assembly comprises at least one pair of positive and negative electrodes, and each pair of electrodes has an electrode gap between the positive electrode and the negative electrode; the electrode assembly and the electrode gap are partially or completely exposed on the surface of the flexible printed circuit. The shock wave catheter system uses the shock wave electrode device. The shock wave catheter system manufactured by adopting the shock wave electrode device has the advantages of miniaturization and integration, meanwhile, the shock wave performance and stability of the catheter can be improved, the production and manufacturing process of the catheter can be simplified, the productivity can be improved, and the production cost can be reduced.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a shock wave electrode device and a shock wave catheter system. Background technique [0002] An electrode is a component connected to both ends of a conductive medium (including solid, liquid, gas, plasma or vacuum) and used to transfer electric charges to and / or flow out of the medium. The electrode can be made of metal or non-metal, as long as it can exchange charges with the medium, it can become an electrode. Electrodes are divided into positive electrodes and negative electrodes, and positive and negative electrodes generally appear in pairs, and sometimes a pair of positive and negative electrodes connected to the same loop are collectively referred to as electrodes. Under certain conditions, a large amount of charges accumulate at both ends of the positive and negative electrodes to generate a strong electric field, and the neutral particles in the medi...

AI Technical Summary

Problems solved by technology

[0004] Products and technologies at this stage have a large number of electrode components, complex manufacturing process, and poor dimensional accuracy; the production process of electrode components is complicated, the degree of automation is low, and the gap between electrodes is not accurate; the wiring of component devices is dense, integration and positioning are difficult, and processing time is long. , low product yield and other problems, ultimately leading to such defects as high production cost and poor consistency of shock waves in this type of catheter, and the catheter is too large and soft, with poor physical properties and vascular permeability, making it suitable for blood vessels, removing Efficacy and product safety of calcification remain challenging and limit further application of this technology in the field of angioplasty

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