Lung treatment ablation catheter convenient for barrier-free exit

Abstract

The invention discloses a lung treatment ablation catheter convenient to withdraw without barriers, the ablation catheter comprises a catheter near end and a catheter far end, the diameter of the catheter far end is smaller than that of the catheter near end, and at least two ablation tubes are arranged on the catheter far end in a circumferential array; the ablation tube is of an elastic arc-shaped structure and is provided with a central supporting part and two free ends, the central supporting part is sleeved with an ablation sleeve, and an electrode is arranged on the ablation sleeve; the distances between the two free ends and the far end of the catheter are adjustable; the distance between the central supporting part and the far end of the catheter is adjustable; the arc-shaped structure of the ablation tube can be deformed into an arc-shaped structure facing the opposite direction of the initial arc-shaped structure under the driving of the two free ends and / or the central supporting part.

Description

technical field [0001] The invention relates to the technical field of ablation catheters, in particular to an ablation catheter for lung therapy that is convenient for unobstructed withdrawal. Background technique [0002] In the treatment of lungs, ablation catheters are often used to destroy the lung target tissue, so as to improve the condition of the lungs, and then achieve the purpose of treatment, for example, through targeted deep tissue ablation, destroy the nerves in the nerve bundles along the extrabronchial distribution Axon, block its dominance, produce the effect similar to anticholinergic drugs, so as to achieve permanent anticholinergic effect, reduce airway smooth muscle tension, reduce mucus secretion, and improve COPD. At present, The existing ablation catheters have low overall flexibility and cannot be deformed in a specific state, so that they cannot adapt to the complicated pulmonary bronchi. [0003] Therefore, it is necessary to provide an ablation ...

AI Technical Summary

Problems solved by technology

[0002] In the treatment of lungs, ablation catheters are often used to destroy the lung target tissue, so as to improve the condition of the lungs, and then achieve the purpose of treatment, for example, through targeted deep tissue ablation, destroy the nerves in the nerve bundles along the extrabronchial distribution Axon, block its dominance, produce the effect similar to anticholinergic drugs, so as to achieve permanent anticholinergic effect, reduce airway smooth muscle tension, reduce mucus secretion, and improve COPD. At present, Existing ablation catheters have low overall flexibility and cannot be deformed in a specific state, so they cannot adapt to the complex pulmonary bronchi

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