Lateral laser ablation catheter system

Abstract

The invention provides a lateral laser ablation catheter system. The lateral laser ablation catheter system comprises a main tube, a laser ablation unit, an imaging unit and a compression unit. An erosion window is arranged on the pipe wall of the main tube. The laser ablation unit comprises a laser ablation engine, a laser ablation optical fiber and a lens assembly, the laser ablation engine is used for emitting laser ablation light beams and conducting the laser ablation light beams through the laser ablation optical fiber, the laser ablation optical fiber and the lens assembly are both arranged in the main tube, and the lens assembly is used for adjusting the laser ablation light beams emitted from the laser ablation optical fiber, so that the laser ablation light beam is emitted from the ablation window. The imaging unit is connected with the main tube and used for collecting tissue image information corresponding to the lateral direction of the main tube. The compression unit is connected with the main pipe and used for enabling the ablation window to be attached to the tissue wall. The catheter lateral vessel wall ablation operation is carried out in cooperation with vessel wall imaging, so that local calcified plaques of the vessel wall can be treated conveniently, the target position is accurate, and the operation efficiency and success rate are improved.

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

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