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    • 4. 发明申请
    • TISSUE PENETRATING CATHETHERS HAVING INTEGRAL IMAGING TRANSDUCERS AND THEIR METHODS OF USE
    • 具有整体成像传感器的组织穿透导管及其使用方法
    • WO9949910A9
    • 1999-11-25
    • PCT/US9907112
    • 1999-03-31
    • TRANSVASCULAR INC
    • FLAHERTY J CHRISTOPHERWHITT JASON BCHANG JOHN YTHOLFSEN DAVID REVARD PHILLIP C
    • A61B8/12A61B17/00A61B17/11A61B17/22A61B17/32A61B17/34A61B19/00A61M25/00A61M25/01A61M
    • A61M25/0108A61B17/22A61B17/3207A61B2017/00252A61B2017/00455A61B2017/22077A61B2090/3784A61B2090/3925
    • A catheter device that is useable to penetrate from a blood vessel in which the catheter device is positioned to a target location comprises a flexible catheter advanceable into the first blood vessel, a tissue penetrator lumen adapted to receive an operative tissue penetrator which is usable to penetrate from the blood vessel to the target location when properly aimed. Further said catheter including an imaging transducer fixedly mounted on or within the catheter body to provide an imaging signal from which an image of the target location can be obtained. The catheter device may include an imageable marker on the catheter to form on the image obtainable from the imaging signal a penetrator path indication that indicates the path that will be followed by the tissue penetrator when the tissue penetrator exits from the catheter. Alternatively, or in addition thereto, the imaging transducer may comprise a plurality of imaging elements which are located so that the penetrator path indication can be obtained. A method of utilizing such a catheter device to bypass an arterial obstruction is also disclosed.
    • 可用于从其中定位导管装置的血管渗透到目标位置的导管装置包括可推进到第一血管中的柔性导管,适于接收可用于穿透的可操作组织穿透器的组织穿透器内腔 在适当瞄准时从血管到目标位置。 此外,所述导管包括固定安装在导管主体上或导管主体内的成像换能器,以提供成像信号,从该成像信号可以获得目标位置的图像。 导管装置可在导管上包括可成像标记以在可从成像信号获得的图像上形成穿透器路径指示,该穿透器路径指示指示当组织穿透器离开导管时组织穿透器将遵循的路径。 可选地或附加地,成像换能器可以包括多个成像元件,这些成像元件被定位成使得可以获得穿透器路径指示。 还公开了利用这种导管装置绕过动脉阻塞的方法。