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Renal artery radiofrequency ablation catheter

A technique for radiofrequency ablation of renal arteries, applied in the field of medical catheters, can solve the problems that catheters cannot be well adapted to the inner wall of renal arteries with different diameters, catheter operation and complex structure, etc., to facilitate industrial manufacturing, avoid blood vessel damage, and structure simple effect

Active Publication Date: 2012-07-11
上海鸿电医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the operation and structure of the catheter of this application are relatively complicated
Moreover, the catheter of this application cannot be well adapted to the inner wall of the renal arteries of different diameters, so that the electrodes cannot be adhered to the walls of the renal arteries of different diameters

Method used

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  • Renal artery radiofrequency ablation catheter
  • Renal artery radiofrequency ablation catheter
  • Renal artery radiofrequency ablation catheter

Examples

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Embodiment Construction

[0027] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] For ease of description, the terms "distal end" and "proximal end" are used here, the end near the operating end (ie, the control handle 5) is the proximal end, and the end far away from the operating end is the distal end.

[0029] figure 2 Shown is a schematic diagram of the overall structure of the catheter suitable for renal artery radiofrequency ablation of the present invention. 1 is the main section of the catheter with a length of 90cm; 2 is the bendable section of the catheter with a length of 12mm; 3 is the last straight section with the electrode 4 fixed thereon, with a total length of 7mm; the last straight section is fixed with an electrode 4; the main body of the catheter Section 1 is fixed on the control handle 5, and the control handle 5 is provided with a push button and a chute, and the push button can slide in the c...

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Abstract

The invention provides a catheter suitable for realizing radiofrequency ablation in blood vessels such as a renal artery and the like. The catheter comprises a control handle (5), a main body section (1), a bendable section (2) and an electrode (4) from a proximal end to a distal end. A draw wire (10) penetrates through the inside of the catheter in an extension manner and is controlled by the control handle (5). The renal artery radiofrequency ablation catheter is characterized by further comprising a tail straight section (3), and the electrode (4) is fixed on the tail straight section (3); and one end of the draw wire is fixed at the distal end of the tail straight section (3), and the draw wire (10) can extend on different sides in the tail straight section (3) and the bendable section (2) along the axis of the catheter. The catheter is applicable to renal arteries with different inner diameters, and renal artery sympathetic nerve radiofrequency ablation operation by the aid of the catheter is simple, safe and reliable.

Description

technical field [0001] The present invention generally relates to a medical catheter, and more particularly relates to a simple, fast and safe catheter suitable for intravascular ablation of renal arteries and the like. Background technique [0002] Hypertension has the characteristics of high incidence, low awareness rate and great harm. "Guidelines for the Prevention and Treatment of Hypertension in China" (Grassroots Edition in 2009) pointed out that there are 10 million new hypertensive patients in China every year, and the number reached 200 million in 2006, of which 20% were patients with resistant hypertension. [0003] Refractory hypertension, also known as refractory hypertension, refers to hypertension that cannot be effectively controlled after treatment with lifestyle modification and 3 or more antihypertensive drugs (including a diuretic). Experimental data have proved that hypertension is related to the high excitability of renal sympathetic nerve in patients....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
CPCA61B2017/003A61B2018/00404A61B2017/00323A61B2018/00434A61B18/1492A61B2018/00577
Inventor 郭俊敏杨谦谦朱福音张国旺高宾梁波孙毅勇罗七一
Owner 上海鸿电医疗科技有限公司
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