Radio-frequency ablation device, system and method

Abstract

The invention provides a radio-frequency ablation device, system and method. The radio-frequency ablation device comprises a first duct and a second duct, wherein the first duct is nested in the second duct, and the second duct is coaxial with the first duct; at least one circular groove is formed in the wall of the first duct; a circular electrode is fixed in each circular groove; at least two deformation electrodes are arranged in a gap between the first duct and the second duct; each circular electrode and each deformation electrode are connected with a control part through electric leads; the control part controls the first duct and the at least two deformation electrodes to extend out of the second duct, controls the first duct to enter abnormal tissue, controls the at least two deformation electrodes to be attached to the outer layer of the abnormal tissue and controls alternating radio-frequency current to be produced between the at least two deformation electrodes and the at least one circular electrode, and the area of the abnormal tissue where the alternating radio-frequency current passes becomes protein. With the scheme, the ablation efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a radiofrequency ablation device, system and method. Background technique [0002] Radiofrequency ablation technology is widely used in minimally invasive surgery. It usually inserts ablation electrodes into abnormal tissues, and ablates and removes abnormal tissues through high temperature. [0003] At present, in the commonly used radio frequency ablation equipment, the ablation electrode is often set at a fixed position on the top of the catheter, and the ablation electrode is inserted into the abnormal tissue through the catheter. The neutral electrode contacts the human skin tissue, and the inactivation temperature of the abnormal tissue is lower than that of the normal tissue. , within the acceptable temperature range of normal tissue, the ablation electrode and the neutral electrode form a return current to heat up and heat up, so as to realize the elimination of a...

AI Technical Summary

Problems solved by technology

In order to be able to eliminate abnormal tissue, due to the limited range of action of an ablation electrode, it is often necessary to continuously adjust the position of the ablation electrode in the abnormal tissue, and the process of position adjustment takes a certain amount of time, making ablation take a long time time, resulting in low ablation efficiency

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