Thrombectomy catheter device having a self-sealing hemostasis valve
    3.
    发明授权
    Thrombectomy catheter device having a self-sealing hemostasis valve 有权
    具有自密封止血阀的血栓切除术导管装置

    公开(公告)号:US07226433B2

    公开(公告)日:2007-06-05

    申请号:US10455096

    申请日:2003-06-05

    IPC分类号: A61M25/00

    摘要: A thrombectomy catheter device having an improved hemostasis valve which is self-sealing and which functions as a one-way valve. The self-sealing hemostasis valve can be factory preset to automatically seal with or without the inclusion of a guidewire at a certain desired pressure or allowable leakage. Such sealing is automatic without the need to manually manipulate a hemostasis nut to obtain hemostasis. The thrombectomy catheter device can, without hemostasis nut adjustment, be positioned along and about a guidewire while yet maintaining suitable pressure for sustaining hemostasis at a preferred level. Certain embodiments of the thrombectomy catheter device having a self-sealing hemostasis valve include an adjustable hemostasis nut which can be manually tightened to restrict flow or guidewire movement or loosened to reduce friction on the guidewire and allow fluid to flow out if desired. An introducer facilitates free passage of a guidewire in either direction through the hemostasis nut and hemostasis valving and can also be incorporated to purge internal air or fluids.

    摘要翻译: 一种具有改进的止血阀的血栓切除术导管装置,该止血阀是自密封的并且用作单向阀。 自密封止血阀可以在出厂预设时自动密封,包括或不包括导丝在一定的期望压力或允许的泄漏。 这种密封是自动的,而不需要手动操作止血螺母以获得止血。 血栓切除术导管装置可以在没有止血螺母调节的情况下沿着导丝定位并且围绕导丝定位,同时保持适当的压力以维持止血在优选的水平。 具有自密封止血阀的血栓切除术导管装置的某些实施例包括可调节的止血螺母,其可以手动地紧固以限制流动或导丝运动或松动以减少导丝上的摩擦并且如果需要允许流体流出。 引导器促进导线沿任一方向自由通过止血螺母和止血阀,并且还可以并入以清除内部空气或流体。