Radiofrequency ablation catheter for implementing pulmonary nerve ablation, and radiofrequency ablation system

A technology of radiofrequency ablation and catheters, which is applied in parts of surgical instruments, medical science, heating surgical instruments, etc., can solve the problems of high ablation position, unfavorable recovery process of patients, difficult control of treatment effect, etc., to achieve accurate ablation operation, improve Efficiency and effectiveness of treatment
CN110897709APending Publication Date: 2020-03-24HANGZHOU BRONCUS MEDICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU BRONCUS MEDICAL CO LTD
Publication Date
2020-03-24

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Abstract

The invention discloses a radiofrequency ablation catheter for implementing pulmonary nerve ablation, and a radiofrequency ablation system. The radiofrequency ablation catheter comprises a core tube assembly and a plurality of electrodes installed on the core tube assembly, the core tube assembly comprises a core tube, the far end part of the core tube is an expansion part, the expansion part hasa loading state and an expansion state which are opposite to each other, the expansion part in the expansion state is in a closed or open ring shape, and the electrodes are arranged on the expansion part at intervals; and a conveying channel is further arranged in the core tube assembly, one end of the conveying channel is used for being connected with a cooling medium conveying device, and the other end of the conveying channel extends to the expansion part and is independently provided with an output port for each electrode. The arrangement of the expansion part makes the core tube assemblyrealize stable, convenient and accurate ablation operation on respiratory tracts with different positions and shapes, and the operation efficiency and the treatment effect are improved.
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Description

technical field

[0001] The present application relates to the field of interventional therapy, in particular to a radiofrequency ablation catheter and a radiofrequency ablation system for performing pulmonary nerve ablation. Background technique

[0002] Chronic Obstructive Pulmonary Disease (COPD) is the most common disease of the respiratory system. In our country, according to the existing epidemiological survey evidence, the prevalence of COPD among adults over 40 years old is 10%. %about.

[0003] At present, COPD mainly relies on drug treatment, and anticholinergic drugs are used to specifically block M receptors, causing airway smooth muscle relaxation, airway relaxation and mucus secretion reduction, thereby reducing airway obstruction and relieving symptoms of COPD patients. Therapeutic ablation (Targeted Lung Denervatiom, TLD) lung denervation therapy ablation targets the parasympathetic nerve, blocking its innervation, so as to achieve permanent anticholinergic e...

Claims

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