Laser therapeutic instrument for lower extremity variceal ablation

Abstract

The invention discloses a laser therapeutic instrument for lower extremity variceal ablation. The laser therapeutic instrument comprises a medical optical fiber; the near end of the medical optical fiber can be optically connected with a radiation source, the far end of the medical optical fiber can be accommodated in the blood vessel, and the medical optical fiber has a radiation emergent surface; the far end of the medical optical fiber is fixedly provided with a cover piece, and the cover piece is sealed with the medical optical fiber; the emergent surface is encapsulated in the cover piece; the cover piece is internally provided with a reflecting element; the reflecting element has a reflecting surface arranged opposite to the emergent surface, and the reflecting surface can change thedirection of laser which is radiated along the long axis direction of the medical optical fiber, so that the laser is enabled to laterally radiate the peripheral vessel wall along the long axis of the medical optical fiber. The laser therapeutic instrument also provides a better, safer and more stable optical fiber tool to accelerate a removing speed while maintaining the benefits of effective vascular resection, is easy to operate, and eliminates the demand of using an anesthetic.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a laser therapeutic apparatus for ablation of varicose veins of lower limbs. Background technique [0002] Varicose veins of the lower extremities is a common disease, which refers to the state of the superficial venous system of the lower extremities in a state of elongation, winding and varicose veins. The "Surgery Authentic" of the Ming Dynasty contained: "Tendinous tumors are firm and purple in color, blue tendons are piled up, and twisted and twisted, knots are like earthworms", which refers to varicose veins. [0003] Simple varicose veins of the lower extremities are caused by saphenous-femoral valvular insufficiency, also known as primary saphenous varicose veins; secondary types are deep venous lesions that lead to increased deep venous pressure, destroying saphenous veins and communicating branch vein valves , and cause superficial varicose veins, simple va...

AI Technical Summary

Problems solved by technology

[0005] A disadvantage of prior art ELAs is that, outside the flat exit surface of the fiber, the direction of the laser radiation is only in the forward direction, with the result that there is essentially only blood and / or veins in front of the flat exit surface at any one time. A very small local portion of the wall receives the outgoing laser energy directly, so essentially no radiation emerges radially or laterally from the fiber tip, thus delivering the laser radiation in a relatively localized manner, and consequently, the relatively low removal rate, which increases relatively Treatment time

Another disadvantage is that the relatively high level of energy delivered into the vein produces a significantly elevated temperature which in turn causes a corresponding level of pain in the surrounding tissue

Accordingly, such prior art ELA sessions may require relatively high levels of anesthesia, such local tumescent anesthesia, require more time, and cause more stress to both the patient and the physician than desired

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