Large-area discharge ablation device

Abstract

The invention relates to the technical field of medical radio-frequency ablation, and in particular to a large-area discharge ablation device. The large-area discharge ablation device comprises an ablation catheter and a guide tube, wherein an ablation handle is arranged on a guide handle in a sliding mode; the ablation catheter comprises a catheter body; the catheter body comprises a solution cavity; at least two conductive parts, which are used for implementing electric conduction, are arranged at the end, which stretches into a human body, of the catheter body; and radio-frequency current, which is applied to the conductive parts, sequentially passes through one of the conductive parts, human tissues and the other conductive part, so that at least one closed loop is defined; therefore, stress on the ablation catheter can be monitored in an ablation process in real time, and an ablation area can be increased; with the application of an electrical stimulation method, a focus tissue can be searched; and meanwhile, operations can be facilitated.

Description

technical field [0001] The invention relates to the technical field of medical radiofrequency ablation, in particular to a large-area discharge ablation device. Background technique [0002] The human body is a complex structure composed of many organic and inorganic substances. The body fluid contains a large number of dielectrics, such as ions, water, colloidal particles, etc. The human body mainly relies on the movement of ions to conduct current. Under the action of high-frequency alternating current, the ion concentration change direction changes back and forth with the current direction as positive and negative half cycles. Under high-frequency oscillation, the ions between the two electrodes move rapidly along the direction of the electric force line, gradually changing from a moving state to a vibrating state. Due to the different sizes, masses, charges and moving speeds of various ions, the ions rub against each other and collide with other particles to generate bi...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a large-area ablation catheter that can increase the single ablation area, does not require additional mapping catheters, and is easy to operate, in view of the problems that the current ablation catheter has a small ablation area and requires additional mapping catheters and ablation devices that are complicated to operate. Discharge ablation device

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