Ablation and suction laser guide pipe

Abstract

The invention relates to an ablation and suction laser guide pipe, which comprises a guide pipe main body, a suction guide pipe and a guiding end head, wherein one end of the guide pipe main body is used for being connected with a laser generation device; the other end of the guide pipe main body is connected with the guiding end head; the guiding end head is used for emitting laser; one end of the suction guide pipe is used for extending into the guide pipe main body and is penetrated out of the guiding end head to suck a target object; and the other end of the suction guide pipe is used for being connected with a negative pressure generation device. In a process that the above ablation and suction laser guide pipe carries out laser ablation, the laser enters the guiding end head along the guide pipe main body and is emitted to a lesion plaque and a thrombus from the guiding end head to ablate a lesion and the thrombus. After negative pressure is generated in the suction guide pipe, the target object generated after ablation is sucked to realize local quick cooling, recover a blood flow in the blood vessels and lighten a burden generated to the human body by decomposition of the target object.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an ablation and suction laser catheter. Background technique [0002] With the development of medical science, for the treatment of coronary heart disease, especially for the elimination of diseased tissue plaques, there are currently many elimination methods, including: [0003] (1) Radiofrequency ablation, radiofrequency ablation is a method of using the thermal effect of radiofrequency current to cause tissue necrosis. The working temperature is controlled at 37-55°C. This temperature can coagulate and necrosis the tissue, but cannot liquefy and remove the tissue. [0004] (2) Microwave ablation. Microwave ablation is a method that uses high-frequency electromagnetic waves to act on tissues to rapidly generate heat to cause tissue necrosis. It has the characteristics of rapid temperature rise, but it is easy to damage the surrounding tissues. [0005] (3) Thrombus as...

AI Technical Summary

Problems solved by technology

It has the characteristics of rapid temperature rise, but it is easy to damage the surrounding tissue

[0005] (3) Thrombus aspiration, thrombus aspiration is a physical thrombus suction method that can remove thrombus tissue, but it does not work on lesion plaques, unstable lesion plaques will still lead to thrombus formation

However, in the traditional technology, since laser ablation of diseased tissue requires cooling, it is necessary to inject normal saline and heparin to assist cooling during laser ablation, and the debris generated by ablation needs to be decomposed by the kidneys in the blood, but this is harmful to patients. more kidney damage

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