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    • 2. 发明授权
    • Contiguous, branched transmyocardial revascularization (TMR) channel,
method and device
    • 连续分支的经心肌血运重建(TMR)通道,方法和装置
    • US6066131A
    • 2000-05-23
    • US92798
    • 1998-06-05
    • Richard L. MuellerStuart D. HarmanRobert L. Lathrop, Jr.Bruce J. Richardson
    • Richard L. MuellerStuart D. HarmanRobert L. Lathrop, Jr.Bruce J. Richardson
    • A61B17/00A61B17/22A61B17/34A61B18/22A61B17/36
    • A61B17/3403A61B18/22A61B2017/00247A61B2017/22075A61B2018/00392
    • Improved methods and devices related to laser-assisted transmyocardial revascularization (TMR), and more particularly, to improved methods and devices for creating branched TMR channels through myocardium in which a single opening is made in an epicardial surface with a plurality of channel branches, having predetermined geometries extending into and through myocardium, depending therefrom. A method of creating branched TMR channels comprises piercing an epicardial surface mechanically or with laser energy, directing laser energy through the opening in a first predetermined angular orientation with respect to the epicardial surface to create a first channel and delivering laser energy in a second predetermined angular orientation to create a second branch. A plurality of branches can thus be created in a single channel structure. A guide block device allows an opening to be made in an epicardial surface mechanically or with laser energy and provides a structure for directing laser energy into myocardium in a plurality of channels depending from the opening. Rotating guide devices and finger held devices with rotating head means include a hand held device with an elongated wand-like handle portion, a rotating head portion and a hollow guide needle means. Preferred embodiments further comprise a laser delivery means advancing mechanism and guide needle rotating means.
    • 改进的与激光辅助心肌血运重建(TMR)相关的方法和装置,更具体地说,涉及通过心肌产生分支TMR通道的改进方法和装置,其中在具有多个通道分支的心外膜表面中形成单个开口, 预定的几何形状延伸到心肌中并通过心肌,这取决于它们。 创建分支TMR通道的方法包括机械地或用激光能量刺穿心外膜表面,以相对于心外膜表面的第一预定角度方向引导激光能量通过开口,以产生第一通道并将激光能量传送到第二预定角度 方向创建第二个分支。 因此,可以在单个信道结构中创建多个分支。 引导块装置允许以机械方式或用激光能量在心外膜表面制造开口,并且提供用于将激光能量引导到依赖于开口的多个通道中的心肌的结构。 具有旋转头装置的旋转导向装置和手指保持装置包括具有细长的棒状手柄部分的手持装置,旋转头部分和中空导向针装置。 优选实施例还包括激光输送装置前进机构和引导针旋转装置。