Device for treating resistant hypertension radio frequency ablation renal artery sympathetic nerves and method thereof

Abstract

The invention discloses a device for treating resistant hypertension radio frequency ablation renal artery sympathetic nerves and a method thereof. The device comprises an artery sheath, an angiographic catheter, a radio frequency ablatograph, an ablation catheter, guide wires, electrode tips, a temperature sensor, an impedance sensor and a blood vessel sealing device. According to the device andthe method, firstly, by the smart distribution design of a several quantity of guide wires and electrode tips, uniform distribution of ablation spots on the inner wall of renal artery can be realized,so as to ensure the stability and uniformity of subsequent ablation spots and remarkably increase the radio frequency ablation effect; secondarily, and by combining with the method disclosed by the invention, standardization and systematization of the operation process can be deepened, operation quality is ensured, operation success rate is greatly promoted, and clinical popularization and application are facilitated.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a radiofrequency ablation renal artery sympathetic nerve device and method for treating intractable hypertension. Background technique [0002] Hypertension is a disease with high prevalence in the global population. There are about 160 million adults with hypertension in my country, and 8% to 15% of them are resistant hypertension. Refractory hypertension refers to: the blood pressure cannot be controlled below the target value of 140 / 90mmHg (1mmHg=0.133kPa) after being treated with three or more antihypertensive drugs, including diuretics, in sufficient amount and reasonable , For those with diabetes or kidney disease who fail to drop below 130 / 80mmHg, they should be diagnosed as resistant hypertension. Refractory hypertension cannot be cured. It can only be controlled by drug treatment. The drug dependence is very high. It is often necessary to take several antihyper...

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Problems solved by technology

[0005] According to the above, in the current clinical renal nerve ablation surgery, the position of the catheter is observed indirectly through X-ray (DSA) perspective. At the same time, because the traditional ablation catheter generally has a simple structure and single function, the ablation points cannot be evenly distributed on the inner wall of the renal artery. , there is a lot of randomness and uncertainty, and the ablation position is not accurate, so ablation cannot be performed safely and effectively. In addition, the existing clinical traditional surgical operations lack effective standardization and systematization, which not only brings great harm to the surgical operation It is a big hidden danger, and it also greatly restricts the clinical promotion and application. In view of the above defects, it is necessary to design a device and method for radiofrequency ablation of renal artery sympathetic nerves for the treatment of intractable hypertension.

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