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    • 8. 发明公开
    • PASSIVE HEMOSTATIC SHEATH VALVE
    • 被偷走的人物SCHLEUSENVENTIL
    • EP1651135A4
    • 2011-03-09
    • EP04780128
    • 2004-08-04
    • TRIVASCULAR INC
    • ARGENTINE JEFFERY CMARTIN G RAY
    • A61M5/178A61M39/06
    • A61M39/0606A61M2039/0258A61M2039/0273A61M2039/062A61M2039/0626A61M2039/0633A61M2039/0653
    • The present invention provides vascular introducer sheaths incorporating improved passive valves which can maintain hemostasis around medical instruments. A passive sheath valve for creating a hemostatic seal around a medical instrument comprises a valve body having an upstream end, a downstream end, and a lumen having an inner and outer surface therethrough. The valve body defines a sealing aperture that is configured nominally to remain open. The upstream end includes an upstream annulus region defining at least one opening and the downstream end includes a downstream annulus region. Each annulus region and lumen outer surface define at least one chamber. The at least one opening transmits pressure from the upstream end through the upstream annulus region so as to allow a fluid to enter the at least one chamber.
    • 本发明提供了血管导引器护套,其包括可以在医疗仪器周围保持止血的改进的被动阀。 用于在医疗器械周围产生止血密封的被动护套阀包括具有上游端,下游端和具有穿过其的内表面和外表面的内腔的阀体。 阀体限定了一个密封孔,其被配置为名义上保持打开。 上游端包括限定至少一个开口的上游环区,并且下游端包括下游环区。 每个环形区域和管腔外表面限定至少一个室。 所述至少一个开口将压力从所述上游端传递通过所述上游环空区域,以允许流体进入所述至少一个室。