Ablation catheter

A technology of ablation catheter and ablation electrode, which is applied in the field of ablation catheter, can solve the problems of increased probability of vascular stenosis, endothelial damage, stimulating cell proliferation, etc., and achieve the effect of reducing the risk of stenosis

Active Publication Date: 2018-01-09
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The application of ablation energy will cause damage, edema, and other damage to the endothelium of the renal artery wall, thereby stimulating cell proliferation. If the endothelium is damaged on the entire circumferential section or most of the circular radian of the blood vessel, the probability of vascular stenosis will increase, and even lead to blockage Blood vessel

Method used

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  • Ablation catheter
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Embodiment Construction

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0038] It should be noted that, in the field of intervention, the end closer to the operator is usually called the proximal end, and the end farther away from the operator is called the distal end.

[0039] Unless otherwise defined, all technical and scientific terms used herein have ...

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Abstract

The invention provides an ablation catheter, which comprises an ablation component. The ablation component comprises an electrically insulated flexible outer tube, a supporting tube which is arrangedin the flexible outer tube and at least one electrode. A through hole is formed in the sidewall of the flexible outer tube; and at least one part of the at least one electrode is exposed from the through hole, so that an ablation electrode is formed. In comparison with the prior art, according to the scheme, the ablation electrode of the ablation catheter, which fails to cover the entire circumference of the ablation catheter where the ablation electrode is located, cannot cause ablation energy on the radian of the entire circumference or most circumference of a blood vessels, so that the riskof stenosis of small branch vessels due to ablation is reduced..

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an ablation catheter. Background technique [0002] Hypertension is a common chronic disease. In its formation mechanism, the renin-angiotensin-aldosterone system (Renin Angiotensin Aldosterone System, RAAS) plays a key role as an important blood pressure regulation system. RAAS maintains the balance of water, electrolytes and blood pressure in the body through the regulation of the heart, blood vessels and kidneys. Studies have confirmed that RAAS causes hypertension through the following three pathways: (1) RAAS activation causes sodium retention; (2) RAAS activation can increase the activity of the sympathetic nervous system; (3) RAAS activation can directly constrict blood vessels. Among them, the renal artery sympathetic nerve plays a decisive role in inducing and maintaining systemic hypertension, and its overactivity makes it difficult to lower blood pressure in hypertensiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12A61B18/14
Inventor 庄少春曾莉群刘鹏陈文俊
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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