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Renal artery radiofrequency ablation catheter

A technology for radiofrequency ablation of renal arteries, applied in the field of electrosurgery, can solve the problems of high production cost, low efficiency, inconvenient operation, etc., and achieve the effect of low production cost, simple structure and good ablation effect

Pending Publication Date: 2017-06-16
SHANGHAI ANTONG MEDICAL TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although related documents or patents have reported related devices for regulating the sympathetic nerve of the renal artery, the existing devices have defects such as inconvenient operation, high manufacturing cost or low efficiency

Method used

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

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Embodiment Construction

[0082] In the present invention, the abbreviation used:

[0083] PTFE refers to polytetrafluoroethylene, namely Polytetrafluoroethylene;

[0084] FEP refers to fluorinated ethylene propylene copolymer, that is, Fluorinated ethylene propylene;

[0085] TPU refers to thermoplastic polyurethane elastomer rubber, namely Thermoplastic polyurethanes;

[0086] PET refers to polyethylene terephthalate, namely Polyethylene terephthalate;

[0087] Pebax refers to polyether block amide, namely Polyether block amide

[0088] For ease of description, the end of the device or component that is close to the user (or handle) or away from the nerve site that needs to be adjusted is called "proximal end" in the present invention, and the end of the device or component that is far away from the user (or handle) or close to The end of the neural site that needs to be modulated is called the "distal end".

[0089] The nerve in the present invention refers to the renal sympathetic nerve located...

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Abstract

The invention discloses a renal artery radiofrequency ablation catheter. The renal artery radiofrequency ablation catheter comprises a regulating assembly for regulating nerves, and the regulating assembly comprises an electrode and a bearing part for bearing the electrode; the electrode is used for transmitting regulating energy to the nerves and comprises an electrode wire wound on the bearing part, the bearing part has a first shape and a second shape, the regulating assembly is set to be suitable for moving in vessels when the bearing part is in the first shape, and the electrode is located at the position suitable for transmitting the regulating energy to the nerves when the bearing part is in the second shape. Compared with the prior art, the length that the electrode extends on the bearing part is longer, so that the renal artery radiofrequency ablation catheter has the better ablation effect.

Description

technical field [0001] The invention relates to electrosurgery, in particular to a renal artery radiofrequency ablation catheter. Background technique [0002] Refractory hypertension, high blood pressure (sBP ≥ 160mmHg) that is difficult to control even after using 3 or more drugs (all of which have used a diuretic), is relatively common in clinical practice, with many pathogenic factors and unclear pathogenesis. The treatment effect is very poor, and the diagnosis and treatment techniques are still immature, which has become one of the major problems in the treatment of hypertension. [0003] The latest animal and clinical experimental data prove that the regulation of renal nerves (such as denervation) can significantly and permanently reduce resistant hypertension, such as the recently developed radiofrequency ablation of renal arteries. Renal artery radiofrequency ablation is an interventional technique that achieves denervation by sending an electrode catheter into a ...

Claims

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Application Information

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IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/12A61B18/14A61B2018/1405
Inventor 汪立秦杰盛卫文王震朱平王国辉
Owner SHANGHAI ANTONG MEDICAL TECH
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