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    • 84. 发明授权
    • Guidewire with improved lesion measurement
    • 导丝具有改善的病变测量
    • US06428512B1
    • 2002-08-06
    • US09686143
    • 2000-10-10
    • David M. AndersonMark T. RichardsonGina Eileen Stephens
    • David M. AndersonMark T. RichardsonGina Eileen Stephens
    • A61M2500
    • A61M25/09A61M2025/0008A61M2025/09083A61M2025/09166
    • A guidewire having an elongated core having a radiopaque marker on a distal portion of the core and a plurality of indicia on the proximal extremity of the core to facilitate measurement of an intracorporeal location such as a stenotic region within a patient's coronary artery. The guidewire is first positioned within the patient with the distal radiopaque marker at one end of the intracorporeal location and an indicia representing a base reference point is noted on the proximal portion of the guidewire which extends out of the patient. The guidewire is then moved so that the distal radiopaque marker is located at or adjacent to the other end of the intracorporeal location and another indicia on the proximal portion of the guidewire adjacent to the reference point. The distance between the two indicia on the proximal extremity of the guidewire is a measurement of intracorporeal length.
    • 具有细长芯的导丝,其具有在芯的远侧部分上的不透射线的标记,以及在芯的近端上的多个标记,以便于测量体内位置,例如患者冠状动脉内的狭窄区域。 首先将导丝线定位在患者体内,在体内位置的一端具有远端不透射线的标记,并且在延伸出患者的导丝的近端部分上注意到表示基准参考点的标记。 导线然后被移动,使得远端不透射线的标记物位于或邻近体内位置的另一端,并且在引导线的邻近参考点的近端部分上的另一个标记。 导线近端两个标记之间的距离是体内长度的测量。
    • 85. 发明授权
    • Guide wire with operator controllable tip stiffness
    • 导线,操作者可控尖端刚度
    • US6146339A
    • 2000-11-14
    • US317574
    • 1999-05-24
    • Emmanuel BiagtanDavid M. Anderson
    • Emmanuel BiagtanDavid M. Anderson
    • A61B5/00A61M25/09
    • A61M25/09A61M2025/09008A61M2025/09133A61M2025/0915A61M2025/09175
    • An improved method and apparatus for providing a readily insertable guide wire that is also accurately steerable. One embodiment of the present invention comprises one or more thin diameter, liquid filled, polymer balloons enclosed by the guide wire coils and connected through a hypotube lumen to a pressure transducer. The pressure transducer exerts pressure via a fluid medium to the balloon(s), which then expand and exert pressure onto the inner surface of the coils, thereby stiffening the distal section of the guide wire. In operation, the guide wire will typically be inserted with the balloons deflated, hence the distal tip is very flexible. Once the distal tip reaches its destination, the balloons are inflated and expanded to stiffen and/or reorient the distal tip to allow it to perform as required, typically by aiding in the positioning of a catheter or stent in the desired location.
    • 一种改进的方法和设备,用于提供也是可精确控制的易于插入的导丝。 本发明的一个实施例包括由导丝线圈包围并通过海波管腔连接到压力传感器的一个或多个细直径的,液体填充的聚合物球。 压力传感器通过流体介质将压力施加到球囊上,然后膨胀并施加压力到线圈的内表面上,从而加强导丝的远端部分。 在操作中,导丝通常将气囊放气,因此远端尖端非常柔软。 一旦远端顶端到达其目的地,气囊就被膨胀和膨胀以加强和/或重新定向远侧末端,以允许其根据需要执行,通常通过辅助将导管或支架定位在期望的位置。