Laser ablation conduit for renal artery

Abstract

The invention discloses a laser ablation conduit for a renal artery, and the laser ablation conduit comprises a conduit, an optical fiber and an integrated optical switching device, wherein the side wall of the conduit is provided with a transparent region; the integrated optical switching device comprises an optical reflecting element and an optical focusing element and is arranged in the end part of the conduit; the optical fiber extends in the conduit; the head of the optical fiber is inserted into the integrated optical switching device. When the laser ablation conduit is used, a laser beam transmitted by the optical fiber enters the integrated optical switching device, and is deflected by the optical reflecting element and focused by the optical focusing element; and a deflected and focused laser beam ejects out from the transparent region and irradiates a sympathetic nerve of the renal artery to be denervated so as to carry out laser ablation on the sympathetic nerve of the renal artery. As the sympathetic nerve of the renal artery is denervated by using the laser, damage to an organism is less, and postoperative recovery of a patient is easier.

Description

technical field [0001] The present invention relates to laser medicine, in particular to a laser ablation catheter for denervating the sympathetic nerve of the renal artery. Background technique [0002] Refractory hypertension, high blood pressure (sBP ≥ 160mmHg) that is difficult to control even with more than 3 drugs (all of which have used a diuretic), is relatively common in clinical practice, with many pathogenic factors and unclear pathogenesis. Drug treatment The 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. As a receptor of the central nervous system, the kidney will secrete more renin to activate the RAAS system under the action of the sympathetic nerve, causing a decrease in renal blood flow, resulting in water and sodium retention, and finally an increase in blood pressure; at the same time, the kidney acts as Nervous efferent organs, sympathetic ex...

AI Technical Summary

Problems solved by technology

[0002] Refractory hypertension, high blood pressure (sBP ≥ 160mmHg) that is difficult to control even with more than 3 drugs (all of which have used a diuretic), is relatively common in clinical practice, with many pathogenic factors and unclear pathogenesis. Drug treatment The effect is very poor, and the diagnosis and treatment technology is still immature, which has become one of the major problems in the treatment of hypertension

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