Guide wire and catheter system for radiofrequency ablation of renal artery sympathetic nerves

A technology of radiofrequency ablation and sympathetic nerves, applied in the direction of heating surgical instruments, etc., can solve the problems of inability to adjust the position of radiofrequency ablation electrodes well, and inability to ablate safely, and achieve excellent catheter solutions, effective radiofrequency ablation, improved safety and effect of effectiveness

Active Publication Date: 2014-02-05
廖申扬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a guide wire catheter system for radiofrequency ablation of renal artery sympathetic nerves, which solves the problem that the prior art cannot well adjust the position of radiofrequency ablation electrodes, resulting in inability to perform safe and effective ablation

Method used

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  • Guide wire and catheter system for radiofrequency ablation of renal artery sympathetic nerves
  • Guide wire and catheter system for radiofrequency ablation of renal artery sympathetic nerves
  • Guide wire and catheter system for radiofrequency ablation of renal artery sympathetic nerves

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Embodiment

[0037] Such as figure 1 As shown, the guide wire catheter system for radiofrequency ablation of renal artery sympathetic nerves includes a radio frequency ablation catheter, a guide wire 1 sleeved in the radio frequency ablation catheter, a loading sheath 2 sleeved outside the radio frequency ablation catheter, and a radio frequency ablation catheter The Y-shaped hemostatic valve 6 at the tail end. Such as Figure 8 As shown, the diameter of the guide wire is 0.010”~0.018”, and the length is 1000~3000mm. The guide wire tube is made of one or more of polymer materials and metal materials. Coating, lubricating coating is one or several materials in PTFE, PVP, PAM, PVA, etc. Such as Figure 7 As shown, the above-mentioned Y-shaped hemostatic valve is a screw-on type, with a silicone ring at the end, which can be used to fix or release the guide wire. Since the Y-shaped hemostatic valve is a commonly used device in the cardiac catheterization laboratory, its structure is not de...

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Abstract

The invention discloses a guide wire and catheter system for radiofrequency ablation of renal artery sympathetic nerves, and aims to solve the problem that in the prior art, the position of a radiofrequency ablation electrode can not be well adjusted, so that the safe and efficient ablation can not be realized. The guide wire and catheter system comprises a radiofrequency ablation catheter, a guide wire sleeved by the radiofrequency ablation catheter, a loading sheath and a Y-shaped hemostasis valve arranged at the tail end of the radiofrequency ablation catheter, wherein the radiofrequency ablation catheter is sleeved by the loading sheath. By the adoption of the guide wire and catheter system, the bilateral renal artery sympathetic nerve radiofrequency ablation can be realized more accurately, safely and efficiently, and a more excellent catheter solution is provided for patients with hypertension.

Description

technical field [0001] The invention specifically relates to a guide wire catheter system for radiofrequency ablation of renal artery sympathetic nerves. 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 is still not controlled below 140 / 90 mm Hg (1 mmHg = 0.133kPa) after the use of three or more adequate and reasonable antihypertensive drugs including diuretics For those with diabetes or kidney disease who fail to drop below 130 / 80 mm Hg, 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 antihypertensive drugs at the same time. Patients need to take drugs for life, which costs a lot, and the q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
Inventor 何芬
Owner 廖申扬
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