A system for percutaneous radiofrequency ablation of renal sympathetic nerve

Abstract

The invention relates to the field of medical apparatus, in particular to a system for percutaneous radiofrequency ablation renal sympathetic denervation. The system comprises an ablation operation unit, a connecting unit and a monitoring unit which are connected in sequence. The ablation operation unit comprises an ablation electrode, a catheter body and a control handle. The catheter body is connected with the control handle. One end, away from the control handle, of the catheter body is provided with a soft section. The ablation electrode is disposed on the soft section. Due to the fact that the soft section can be well bent and bending degree of the same can be adjusted easily, close attaching of the ablation electrode and a renal artery blood vessel can be guaranteed, and sympathetic nerves on the renal artery blood vessel can be well ablated by the ablation electrode. The ablation operation unit, the connecting unit and the monitoring unit are connected in sequence, ablation temperature can be monitored accurately by the monitoring unit, and influence, caused by insufficient ablation and excessive ablation, on health can be avoided.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a system for percutaneous radiofrequency ablation of renal sympathetic nerves. Background technique [0002] At present, resistant hypertension is the most common cardiovascular disease among middle-aged and elderly people, and it is also an important risk factor for coronary heart disease, stroke, congestive heart failure, renal failure and aortic aneurysm. primary reason. With the prolongation of life expectancy in our country, the prevalence of hypertension in the elderly has reached 40% to 60%. Although there are more and more safe and effective drugs, the treatment status of hypertension is still poor. [0003] Studies have shown that renal sympathetic nerve activity (renal sympathetic nerve activity, RSNA) leads to increased renal tubular sodium water reabsorption, causing renin release and changes in renal vascular resistance, thereby increasing blood pressure, and the refl...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a percutaneous radiofrequency ablation system for renal sympathetic denervation to solve the problem of poor ablation effect due to the difficulty of ablation electrodes and renal arteries, and the insufficient degree of ablation caused by the inability to accurately control the ablation temperature or the problem of overablation

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