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    • 60. 发明授权
    • Split valve for peel-away sheath
    • 分离阀用于剥离护套
    • US07303552B1
    • 2007-12-04
    • US09430050
    • 1999-10-29
    • Michael S. H. ChuYem Chin
    • Michael S. H. ChuYem Chin
    • A61M5/00
    • A61M39/0613A61M25/0668A61M2039/062
    • A breakaway valve body for a peel-away introducer sheath. The valve body can be used in conjunction with a distally coupled peel-away introducer sheath and a proximally coupled flexible valve sleeve for restricting fluid flow from the introducer sheath when the valve body compresses the valve sleeve to a closed position. The valve can include a body scored or weakened to break along a predefined path in response to applied force. The valve preferably includes a first member and a second member movable relative to each other and having a pinch member therebetween for constricting a flexible valve sleeve placed between the first and second members. In one valve, the first and second members are pivotally disposed on hinges to allow the members to open and close about an inserted flexible valve sleeve and to pinch the sleeve with a pinch member. The valve preferably includes a proximal region of valve sleeve extending proximally past the valve pinch member to allow insertion of a catheter distal end into the valve sleeve proximal end while the more distal valve sleeve region is constricted in a closed position. The valve allows insertion of a catheter into the introducer sheath with minimal blood loss. The valve allows easy removal of the sheath from an inserted catheter by snapping the valve and pulling the halves apart, thereby tearing the peel-away sheath away from the catheter.
    • 用于剥离导引鞘的分离阀体。 当阀体将阀套压缩到关闭位置时,阀体可以与远端耦合的剥离引导器套管和近端联接的柔性阀套管结合使用,用于限制来自引导器护套的流体流动。 该阀可以包括按照所施加的力而沿着预定路径断开或被削弱的主体。 阀优选地包括第一构件和第二构件,第二构件和第二构件可相对于彼此移动并且在其间具有夹紧构件,用于收缩位于第一构件和第二构件之间的柔性阀套。 在一个阀中,第一和第二构件枢转地设置在铰链上,以允许构件围绕插入的柔性阀套筒打开和关闭,并且用夹紧构件夹紧套筒。 阀优选地包括阀套的近侧区域,其近端延伸通过阀夹紧构件,以允许将导管远端插入到阀套近端中,同时更远端的阀套区域在闭合位置收缩。 该阀允许将导管插入导引鞘中,同时以最小的血液流失。 瓣膜允许通过咬合瓣膜并将两半部分拉开而容易地从插入的导管中去除护套,从而将剥离的护套从导管撕开。