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Renal artery sympathetic nerve laser ablation catheter

A technology of sympathetic nerve and laser ablation, which is applied in catheterization, medical science, surgery, etc. It can solve the problems of poor treatment effect and insufficient ablation of renal artery branch nerves, and achieve better treatment effect, wide ablation range and ablation effect good effect

Inactive Publication Date: 2021-06-08
复旦大学附属华山医院北院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The current renal artery sympathetic nerve surgery is limited to the ablation of the middle nerve, resulting in poor therapeutic effect; and the renal artery has many branches, but the current ablation of the branch nerves of the renal artery is not deep enough

Method used

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  • Renal artery sympathetic nerve laser ablation catheter
  • Renal artery sympathetic nerve laser ablation catheter

Examples

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Embodiment 1

[0035] Such as figure 1 with figure 2 As shown, this embodiment provides a renal artery sympathetic nerve laser ablation catheter, including a balloon catheter 1, a compliance balloon 2, and a guide rod 4 pierced in the balloon catheter 1;

[0036] Wherein, the combination structure between the balloon catheter 1 and the compliance balloon 2 can refer to the coronary artery balloon catheter;

[0037] Wherein, the far-end laser probe 5 and the near-end laser probe 6 are fixedly installed on the guide rod 4 respectively at an obtuse angle and an acute angle with the guide rod 4, and the far-end laser probe 5 and the near-end laser probe 6 are piezoelectric The mirror surface formed by ceramics, the piezoelectric ceramics are connected to the power supply through the wire 13; a beam splitter 11 is installed between the far-end laser probe 5 and the near-end laser probe 6, and the beam splitter 11 divides the laser beam transmitted by the optical fiber into two beams and transmi...

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Abstract

The present invention provides a renal artery sympathetic nerve laser ablation catheter, comprising a balloon catheter, a compliant balloon and a guide rod pierced in the balloon catheter, wherein: the proximal catheter of the balloon catheter is provided with There is an interface; a far-end laser probe and a near-end laser probe are arranged on the guide rod, and the far-end laser probe and the near-end laser probe are respectively arranged at an obtuse angle and an acute angle with the guide rod, and are located at the The interior of the compliance balloon; the distal laser probe and the proximal laser probe are respectively connected to an external laser device through an optical fiber through a beam splitter, and are used to focus the laser emitted by the laser device to form a laser ablation point. The renal artery sympathetic nerve laser ablation catheter of the present invention can realize precise ablation of renal artery sympathetic nerves in different distribution segments, and can also realize precise ablation of renal artery sympathetic nerve branches.

Description

technical field [0001] The invention relates to the technical field of renal artery sympathetic nerve ablation, in particular to a renal artery sympathetic nerve laser ablation catheter. Background technique [0002] The kidney is one of the important organs for regulating blood pressure in the human body. It secretes a hormone, renin, and then regulates the important blood pressure control system of renin-angiotensin-aldosterone. The kidney has abundant innervation, and the adventitia of the renal artery has a dense sympathetic nerve network, and its efferent nerve excitation increases the production and overflow of norepinephrine at the nerve endings, thereby inducing the secretion of renin and promoting the retention of water and sodium; Inner nerve excitement stimulates the central nervous system to secrete vasopressin and increases systemic sympathetic tone. [0003] Studies have shown that the increase of chronic renal sympathetic tension is an important pathogenesis ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/24
CPCA61B18/24A61B2018/0022A61B2018/00404A61B2018/00434A61B2018/2266
Inventor 孙韬李军萍吴钢朱福音
Owner 复旦大学附属华山医院北院
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