A pulsed electric field ablation catheter

Abstract

The invention relates to the field of medical devices, in particular to a pulse electric field ablation catheter. It includes a head electrode group, a tube body, a traction device and a handle assembly, the head electrode group is connected to the end of the tube body, the handle assembly is connected to the proximal end of the tube body, and the traction device is arranged on the inside the tube. The present invention can apply the high-voltage pulse energy source of the pulse electric field to the target tissue through the head electrode group, and can deliver the catheter to various complex and fine tissue structures through the adjustment function of the tube body, and then apply the high-voltage pulse energy source to the target tissue. The pulse energy is accurately and effectively delivered to the target tissue, which greatly shortens the operation time, and the high-voltage pulse energy generated by the pulse electric field can selectively ablate the target tissue, reduce complications, and greatly reduce the damage to tissue cells during surgery.

Description

A pulsed electric field ablation catheter technical field [0001] The present invention relates to the field of medical devices, particularly a pulsed electric field ablation catheter. Background technique As a kind of efficient and safe ablation energy source, pulsed electric field has been studied by scholars at home and abroad all the time. Impulse electric field technology has made great progress, especially in the field of tumor ablation has entered the practical stage; The application of the fusion principle to the field of cardiac ablation is also the current research direction at home and abroad. [0003] The pulsed electric field technique is the application of brief high voltages to tissue cells that can generate localized voltages of hundreds of volts per centimeter [0003] locally high electric fields; locally high electric fields disrupt the cell membrane by creating pores in the cell membrane, where the applied electric field is greater than The cellular ...

AI Technical Summary

Problems solved by technology

[0004] In the existing field of cardiac ablation, most of the ablation technologies based on the principle of thermal ablation, such as radio frequency, freezing, microwave, and ultrasound, are used. However, these existing technologies have a large range of damage to tissue cells, and the treatment time is long. Complications of healthy tissue damage such as blood vessels, esophagus, etc.; and pulsed electric field technology with less damage to tissue cells has not yet been introduced into the field of cardiac ablation, and is in the research stage

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