Lateral Laser Ablation Catheter System

Abstract

The present application provides a lateral laser ablation catheter system, including a main tube, a laser ablation unit, an imaging unit and a compression unit. An ablation window is arranged on the pipe wall of the main pipe. The laser ablation unit includes a laser ablation engine, a laser ablation fiber and a lens assembly. The laser ablation engine is used to emit a laser ablation beam and conduct it through the laser ablation fiber. The laser ablation fiber and the lens assembly are arranged in the main tube. The lens assembly is used to adjust the laser ablation beam emitted from the laser ablation fiber, so that the laser ablation beam is emitted from the ablation window. The imaging unit is connected with the main tube, and is used for acquiring lateral tissue image information corresponding to the main tube. The compression unit is connected with the main pipe, and is used to make the ablation window adhere to the tissue wall. The ablation operation of the vessel wall lateral to the catheter is carried out in conjunction with vessel wall imaging, so as to facilitate the treatment of local calcified plaques on the vessel wall, and the target position is accurate, improving the efficiency and success rate of the operation.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a lateral laser ablation catheter system. Background technique [0002] Plaque ablation is an adjuvant cardiac interventional treatment technique, including coronary atherectomy, orbital atherectomy, and laser ablation. The early excimer laser treatment equipment was huge, the operation was complicated, and it required long-term warm-up and preparation. It was inconvenient for clinical application, and the laser continued to diverge around the blood vessel wall, which greatly increased the probability of coronary perforation, which limited its clinical application. In recent years, a new type of excimer laser ablation equipment has been successfully developed. Using ultraviolet light source, the laser emission mode is changed to forward pulse emission, which makes the energy more concentrated and improves the safety of clinical application. And gradually applied to the intervent...

AI Technical Summary

Problems solved by technology

[0004] The current excimer laser ablation technology mainly acts on the plaque tissue at the front end of the catheter, and cannot exert a good ablation effect on the side wall plaques (such as calcified plaques) that cause vascular stenosis

Images