Ablation catheter with grooves in surface

Abstract

The invention discloses an ablation catheter with grooves in the surface. The ablation catheter comprises a supporting catheter and a plurality of wires, wherein the supporting catheter is configured in the central portion, and the wires are configured on the outer surface of the supporting catheter. The wires are configured by surrounding the circumferential direction of the supporting catheter, and each wire extends in the length direction of the supporting catheter. A sealing layer used for wrapping each wire is arranged outside each wire. The grooves are formed in the outer surface of the supporting catheter by the adjacent sealing layers. Compared with the design that in the prior art, internal structures like the wires are covered by circular tubes, the ablation catheter with the grooves in the surface has the advantages that the contact area between the outer surface of the ablation catheter with the grooves in the surface and the inner wall of a guiding catheter is smaller, the friction resistance is greatly reduced, the ablation catheter is convenient to operate during an operation, meanwhile, a gap between the ablation catheter with the grooves in the surface and the guiding catheter is larger, and the requirements for radiography, lavaging, coagulation resistance and the like during the ablation operation can be fully met.

Description

technical field [0001] The invention relates to a medical device, more particularly to an ablation catheter with grooves on the surface. Background technique [0002] The heart is a very complex human organ. Stimulation of cardiac electrical current causes the heart muscle to contract, pumping blood out and circulating it through the blood vessels. Cardiac current first passes through the atria and then the ventricles, causing corresponding muscle contractions. Under the action of cardiac current, the myocardium performs rhythmic and coordinated contraction. With the increase of age or the change of the pathological and physiological characteristics of the heart, it will lead to cardiac contraction disorders and abnormal rhythm. [0003] One of the ways to treat arrhythmia is ablation, which is to cut off the abnormal electrical circuit of the heart through interventional surgery. To perform an ablation procedure, a catheter with an ablation electrode is passed into the ...

AI Technical Summary

Problems solved by technology

Internal structures such as wires are covered inside the circular tubing, and the gap between the ablation catheter and the guiding catheter can only be realized by increasing the inner diameter of the guiding catheter, and the increase in the inner diameter of the guiding catheter will inevitably increase the difficulty of ablation surgery

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