A radiofrequency ablation device

Abstract

The invention discloses a radiofrequency ablation device which can be used for removing the renal artery sympathetic nerve, reducing excitability of the renal artery sympathetic nerve and curing resistant hypertension. The radiofrequency ablation device comprises an ablation head, a sleeve tube set, a control mechanism and a connector, wherein the ablation head is capable of clamping the tissue and performing radiofrequency ablation operation on the tissue, the sleeve tube set is composed of a plurality of tubes in an embedded mode and enables the ablation head and the control mechanism to be connected together so that the control mechanism can control movement of the ablation head, and the connector is used for enabling a radiofrequency generator to be connected with the radiofrequency ablation device so that radiofrequency energy can be transmitted to the ablation head. When the device is applied, the functions that the renal artery sympathetic nerve is removed, the excitability of the renal artery sympathetic nerve is reduced, blood pressure of a resistant hypertension patient is regulated and controlled are achieved on the basis of the radiofrequency ablation principle.

Description

technical field [0001] The present invention relates to a medical device, in particular to a radio frequency ablation device, more specifically, to a radio frequency ablation device for renal arterial sympathetic nerve excitability, which is used to treat intractable hypertension. Background technique [0002] Hypertension is a major risk factor for stroke, coronary heart disease, heart failure, vascular disease, and chronic renal failure. About 1 billion adults worldwide suffer from high blood pressure, of which only 1 / 3 are effectively controlled. Underdiagnosis and poor treatment compliance are among the reasons for the poor efficacy, but a large number of patients cannot be effectively controlled even with the best medical treatment. In fact, it has been confirmed that nearly 20%-30% of patients in clinical trials fail to achieve target blood pressure (even if they have received more than 3 drug combinations), and eventually develop resistant hypertension. [0003] so-...

AI Technical Summary

Problems solved by technology

[0006] Although a large number of clinical results have confirmed that the patient's blood pressure has been continuously reduced after treatment with this medical ablation catheter, but this method has high requirements for the patient itself

If there are no problems such as renal artery stenosis and multiple renal arteries; in addition, since the sympathetic nerve is located in the adventitia of the renal artery, catheter ablation requires the ablation of the artery through the wall, which will cause greater damage to the renal artery and easily lead to renal artery stenosis; the ablation point bit is not easy to grasp, which lead to the limitation of its application

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