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    • 5. 发明申请
    • ENDOVENOUS LASER TREATMENT GENERATING REDUCED BLOOD COAGULATION
    • 内部激光治疗产生减少血液凝血
    • US20080021527A1
    • 2008-01-24
    • US11612324
    • 2006-12-18
    • David HenningsDavid FullmerCraig Lindsay
    • David HenningsDavid FullmerCraig Lindsay
    • A61N5/067
    • A61B18/24A61B2018/0097
    • This invention is an improved method and device for treating varicose veins 200 or the greater saphenous vein 202. The method comprises the use of infrared laser radiation in the region of 1.2 to 2.2 um in a manner from inside the vessel 200 or 202 such that the endothelial cells of the vessel wall 704 are damaged and collagen fibers in the vessel wall 704 are heated to the point where they permanently contract, the vessel 200 or 202 is occluded and ultimately resorbed. The device includes a laser 102 delivering laser energy via a fiber optic catheter 300. A motorized pull back device 104 may be used. The laser is preferably operated under laser energy delivery conditions that substantially prevent the formation of coagulum on the energy emitting tip of the fiber.
    • 本发明是用于治疗静脉曲张200或较大隐静脉202的改进方法和装置。 该方法包括以从血管200或202内部的方式使用1.2至2.2μm区域的红外激光辐射,使得血管壁704的内皮细胞被损坏,血管壁704中的胶原纤维被加热到 它们永久收缩的点,容器200或202被封闭并最终吸收。 该装置包括经由光纤导管300输送激光能量的激光器102。 可以使用电动拉回装置104。 激光器优选在基本上防止在纤维的能量发射尖端上形成凝结物的激光能量传递条件下操作。