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    • 66. 发明授权
    • Percutaneous tissue track closure assembly and method
    • 经皮组织跟踪闭合组件及方法
    • US06334865B1
    • 2002-01-01
    • US09361663
    • 1999-07-27
    • Russell J. RedmondClaude A. VidalCary J. ReichFelix Vega
    • Russell J. RedmondClaude A. VidalCary J. ReichFelix Vega
    • A61B1708
    • A61B17/0057A61B2017/00004A61B2017/00637A61B2017/0065
    • A percutaneous tissue track closure assembly (2) includes a semipermeable barrier(26) mounted to the distal end of a tubular barrier carrier (20). The barrier is passed down a tissue track (12) and into a blood vessel (18) where the barrier is expanded to close off the blood vessel opening (14). A syringe device is used to drive a hemostatic flowable material (30) through a delivery tube (34) and into the tissue track. The semipermeable barrier permits blood to flow therethrough but prevents passage of the hemostatic flowable material therethrough. The hemostatic material includes a material which swells upon contact with blood, and a blood clotting agent. After an appropriate period of time, the barrier is collapsed and the barrier carrier and delivery tube are removed from the tissue track.
    • 经皮组织跟踪闭合组件(2)包括安装在管状阻挡载体(20)的远端的半透性屏障(26)。 屏障通过组织轨迹(12)并进入血管(18),其中屏障被扩张以封闭血管开口(14)。 注射器装置用于通过输送管(34)驱动止血可流动材料(30)并进入组织轨道。 半渗透屏障允许血液流过其中,但是防止止血可流动材料通过其中。 止血材料包括与血液接触时膨胀的物质和凝血剂。 在适当的时间段之后,屏障被塌缩,并且屏障载体和输送管从组织轨道移除。