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    • 9. 发明申请
    • SYSTEM AND METHOD FOR MODIFICATION AND/OR SMOOTHING OF TISSUE WITH LASER ABLATION
    • 用于激光消融的组织修饰和/或吸收的系统和方法
    • US20130190742A1
    • 2013-07-25
    • US13640588
    • 2011-04-12
    • Daniel Patrick ConnorsJerome FelsensteinRobert E. TrzcinskiJames J. WynneDonna S. Zupanski-Nielsen
    • Daniel Patrick ConnorsJerome FelsensteinRobert E. TrzcinskiJames J. WynneDonna S. Zupanski-Nielsen
    • A61B18/20
    • A61B18/20A61B2018/207
    • Disclosed is an improved system and method for efficiently removing tissue using laser ablation. A first laser emits a first laser beam with a variable first integrated fluence sufficient to ablate tissue. The first laser beam is movably positioned over one or more surfaces of the tissue and the first integrated fluence varies over different levels with position, so different thicknesses of tissue are ablated at different surface positions in order to modify the contour of the surface of the tissue. Modifications include tissue smoothing, removing, feathering, sharpening, and roughening. In one preferred embodiment the tissue is eschar that is removed, unveiling viable tissue. In alternate preferred embodiments, one or more additional lasers beams with different wavelengths, with integrated fluence sufficient to ablate tissue, are moved over the surface of the tissue until a second ablation reaches a second self-termination point, e.g., determined by affects of chemicals below the termination point that absorb the second laser beam without producing the temperature increase necessary for ablation to continue.
    • 公开了一种使用激光烧蚀有效去除组织的改进的系统和方法。 第一激光器发射具有足以消融组织的可变的第一积分能量密度的第一激光束。 第一激光束可移动地定位在组织的一个或多个表面上,并且第一集成能量密度在具有位置的不同水平上变化,因此不同厚度的组织在不同的表面位置被消融,以便修改组织表面的轮廓 。 修改包括组织平滑,去除,羽化,磨锐和粗糙化。 在一个优选实施方案中,组织是被除去的焦痂,揭开活组织。 在替代优选实施例中,具有足以消融组织的积分能量密度的具有不同波长的一个或多个附加激光束在组织的表面上移动,直到第二消融达到第二自终止点,例如由化学物质的影响确定 低于吸收第二激光束的终止点,而不产生消融所需的温度升高。