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    • 3. 发明申请
    • ACCESS NEEDLE WELL-SUITED FOR PERCUTANEOUS IMPLANTATION IN A BODY LUMEN
    • 身体健康的皮肤接触良好
    • WO2007035482A1
    • 2007-03-29
    • PCT/US2006/036032
    • 2006-09-15
    • BOSTON SCIENTIFIC SCIMED, INC.WESTSTRATE, Patrice, A.
    • WESTSTRATE, Patrice, A.
    • A61B17/34A61J15/00
    • A61J15/0007A61B17/3415A61B17/3417A61B2017/3484A61J15/0015A61J15/0038A61J15/0042
    • An access needle well-suited for percutaneous implantation in a body lumen, such as the stomach or the jejunum. In one embodiment, the access needle comprises a cannula, a needle, a retractable stopper and a spreader. The cannula is a tubular member having a proximal end, a distal end, a lumen and a pair of side windows providing access to the lumen. The needle is slidably mounted within the cannula lumen and comprises a needle stem and a needle handle, the needle stem having a proximal end, a distal end and a longitudinal lumen, the needle handle extending outwardly from the needle stem proximate to the proximal end thereof. The stopper is coupled to the needle stem for translational movement, the stopper comprising a pair of outwardly-biasing wings removably insertable through the side windows for engaging an interior surface of a patient. The spreader is mounted within the cannula and spreads the wings outwardly as the wings are inserted out the side windows.
    • 适合于经皮植入在体腔(例如胃或空肠)中的进针。 在一个实施例中,进入针包括插管,针,可缩回止动器和吊具。 插管是具有近端,远端,内腔和提供对内腔的通路的一对侧窗的管状构件。 针可滑动地安装在套管腔内并且包括针杆和针柄,针杆具有近端,远端和纵向腔,针柄从针杆靠近其近端向外延伸 。 止动器联接到针杆以进行平移运动,止动器包括一对可向外移动的向外的翼,该翼可通过侧窗插入,用于接合病人的内表面。 吊架安装在套管内,并且当翼插入侧窗时向外展开翼。