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    • 22. 发明申请
    • EXPANDABLE BRACHYTHERAPY APPARATUS AND METHODS FOR USING THEM
    • 可扩展的宽带设备及其使用方法
    • US20080091055A1
    • 2008-04-17
    • US11868483
    • 2007-10-06
    • Tommy NguyenThan NguyenDoug SuttonGeorge HermannLuis Urquidi
    • Tommy NguyenThan NguyenDoug SuttonGeorge HermannLuis Urquidi
    • A61M36/12
    • A61N5/1014A61N5/1015A61N2005/1018
    • Apparatus for delivering brachytherapy to a target tissue region includes an elongate body including a proximal end, a distal end sized for introduction into a tissue tract and carrying a plurality of elongate members including pathways for receiving a source of radiation. The elongate members are movable between collapsed and expanded configurations. During use, a tract is created through tissue, and the elongate body carrying the elongate members is advanced through the tract into a target location with the elongate members in the collapsed configuration. The elongate members are directed to the expanded configuration at the target location, and radiation is delivered to treat tissue at the target location, e.g., by introducing one or more radiation sources along the pathways. The apparatus may include features to prevent overexpansion of the elongate members and/or to facilitate rapid collapse of the elongate members.
    • 用于将近距离放射治疗递送到目标组织区域的装置包括细长主体,其包括近端,远端,其尺寸适于引入到组织道中并且承载多个细长构件,包括用于接收辐射源的路径。 细长构件可在折叠和膨胀构型之间移动。 在使用期间,通过组织产生管道,并且携带细长构件的细长体通过管道前进到目标位置,细长构件处于收缩构型。 细长构件在目标位置处被引导到扩展构型,并且例如通过沿着路径引入一个或多个辐射源,传送辐射以在目标位置处理组织。 该装置可以包括防止细长构件的过度膨胀和/或促进细长构件的快速塌缩的特征。