Radiofrequency ablation electrode catheter of renal artery rail

Abstract

The invention discloses a radiofrequency ablation electrode catheter of a renal artery rail. The radiofrequency ablation electrode catheter aims at improving resistant hypertension treatment effect and is safe and convenient. The radiofrequency ablation electrode catheter is provided with a spiral rail guide wire and a radiofrequency ablation catheter, wherein the far end of the spiral rail guide wire is spiral, and the radiofrequency ablation catheter slides along a spiral line of the spiral rail guide wire. Compared with the prior art, a spiral spring at the far end of the spiral rail guide wire is released to be in the shape of a spiral circle and is located in an artery rail vessel and attached to the inner wall of the artery rail vessel. The radiofrequency ablation catheter slides along the spiral line of the spiral rail guide wire to perform radiofrequency ablation and breaks sympathetic nerves attached to the inner wall of the artery rail vessel so as to achieve the purpose of treating resistant hypertension. According to the radiofrequency ablation electrode catheter, a surgeon can easily control different positions of the radiofrequency ablation catheter on the spiral circle for ablation, operation is convenient, harm to the renal artery is small, surgeries are safe, and treatment effect is remarkably improved.

Description

technical field [0001] The invention relates to a structure of a medical device, in particular to a renal artery radiofrequency ablation electrode catheter for treating obstinate hypertension. Background technique [0002] Refractory hypertension is relatively common clinically, with many pathogenic factors, unclear pathogenesis, poor drug treatment effect, and immature diagnosis and treatment methods, which has become one of the major problems in the treatment of hypertension. There are other risk factors for cardiovascular disease, such as coronary heart disease, diabetes, heart failure, hyperlipidemia, kidney disease, peripheral artery disease, stroke, left ventricular hypertrophy, etc. Among the various complications of hypertension, the damage to the heart, brain, and kidney is the most significant. For example, according to the statistics of the World Health Organization, 50% of cardiovascular diseases are caused by high blood pressure. At present, due to the increase...

AI Technical Summary

Problems solved by technology

One of the reports is that by manipulating a handle, the distal end of the catheter is bent so that it fits the wall of the renal artery, and at the same time, a knob on the handle is turned to control the rotation of the distal end of the ablation catheter, thereby moving the ablation position to achieve ablation in different parts. For ablation, because the distal end of the catheter is very soft, the rotation angle of the distal end of the ablation catheter cannot be kept consistent with the rotation angle of the control knob when turning the handle, resulting in that the actual ablation position cannot be completely consistent with the expected ablation position, which may affect the treatment effect

The second report is to use the ablation catheter for the treatment of arrhythmia to ablate the renal artery to treat refractory hypertension. The diameter of this catheter is relatively thick, which is inconvenient to operate in the renal artery, and the ablation area is relatively large, which will cause serious damage to the renal artery. big damage

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