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    • 14. 发明授权
    • Heart synchronized pulsed laser system
    • 心同步脉冲激光系统
    • US06595987B1
    • 2003-07-22
    • US09248881
    • 1999-02-11
    • Charles C. NegusRobert I. RudkoStephen J. LinharesStephen M. Perez
    • Charles C. NegusRobert I. RudkoStephen J. LinharesStephen M. Perez
    • A61B1818
    • A61B18/201A61B2218/006
    • A heart-synchronized pulsed laser system includes a laser; means for sensing the contraction and expansion of a beating heart to be synchronized with the laser; means, responsive to the means for sensing, for generating a trigger pulse; means for positioning the leading edge of the trigger pulse; means for positioning the leading edge of the trigger pulse during the contraction and expansion cycle of the heartbeat; means for defining the width of the trigger pulse to occur during the heartbeat cycle; and means responsive to the trigger pulse for firing the laser to strike the beating heart at the time indicated by the trigger pulse position and for the period indicated by the width of the trigger pulse. In addition, the invention feature a handpiece for a medical laser system comprising a barrel for having a passage for transmitting a laser beam and a contacting wall on one end of said barrel including an aperture in communication with the passage, a solid face extending radially outward from the aperture to the periphery of said contacting wall, and a knurled surface on the face for preventing movement of the contacting wall with respect to the heart wall during surgery.
    • 心脏同步的脉冲激光系统包括激光器; 用于感测跳动心脏与激光同步的收缩和扩张的装置; 响应于用于感测的装置,用于产生触发脉冲的装置; 用于定位触发脉冲的前沿的装置; 用于在心跳的收缩和扩张循环期间定位触发脉冲的前缘的装置; 用于定义在心跳周期期间发生的触发脉冲的宽度的装置; 以及响应于触发脉冲以触发激光以在由触发脉冲位置指示的时间和由触发脉冲的宽度指示的时间内击打心跳的装置。 此外,本发明的特征在于一种用于医疗激光系统的手持件,其包括用于具有用于传送激光束的通道和在所述镜筒的一端上的接触壁的镜筒,该镜筒包括与通道连通的孔,径向向外延伸的实心面 从所述接触壁的孔到周边,以及面上的滚花表面,用于防止接触壁在手术期间相对于心壁移动。
    • 18. 发明授权
    • Myocardial revascularization
    • 心肌血运重建
    • US06464693B1
    • 2002-10-15
    • US09519502
    • 2000-03-06
    • Robert R. AndrewsRobert I. RudkoRichard P. Yeomans, Jr.Italo J. DeSantisWeslaw Gronek
    • Robert R. AndrewsRobert I. RudkoRichard P. Yeomans, Jr.Italo J. DeSantisWeslaw Gronek
    • A61B1818
    • A61B18/24A61B2017/00243
    • A myocardial revascularization system that includes a laser energy source (e.g., a semiconductor laser), an outer guide member providing access to a patient's heart, and an optical fiber. The optical fiber is coupled to receive laser energy pulses from the source, is slidably located within the guide member, and is extendible from the distal end of the guide member. A drive motor is connected to the fiber to automatically move the distal end of the optical fiber with respect to the distal end of the guide member. A controller controls the drive motor to automatically move the fiber in synchronism with firing of the laser energy, and automatically calibrates the position of the distal end of the fiber with respect to the distal end of the catheter. The fiber has, at its tip, an enlargened portion with a front surface coated with a heat absorbing material that is nonmetallic and is partially transparent to the pulses. The outer guide member is 7 French or smaller and has a deflectable distal end. A lubricant is located between the optical fiber and an inner lumen surface of the guide member and on the outer surface of the outer guide member. Position sensing components are carried by the optical fiber and outer guide member at or near their distal ends.
    • 包括激光能量源(例如,半导体激光器),提供对患者心脏的通路的外部引导构件和光纤的心肌血运重建系统。 光纤被耦合以从源接收激光能量脉冲,可滑动地位于引导构件内,并且可从引导构件的远端延伸。 驱动电动机连接到光纤上以相对于导向件的远端自动移动光纤的远端。 控制器控制驱动马达以与激光能量的发射同步地自动移动光纤,并自动校准纤维远端相对于导管远端的位置。 纤维在其尖端处具有扩大部分,其前表面涂覆有非金属的并且对脉冲部分透明的吸热材料。 外引导构件为7法兰以上,具有可偏转的远端。 润滑剂位于光纤与引导件的内腔表面之间以及外引导件的外表面上。 位置检测部件由光纤和外引导部件在其远端处或附近承载。