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    Catheter introducer sheath assembly
    1.
    发明授权
    Catheter introducer sheath assembly 失效
    导管导管鞘组件

    公开(公告)号：US5397310A

    公开(公告)日：1995-03-14

    申请号：US24789

    申请日：1993-03-01

    申请人： Michael S. H. Chu ,  Yem Chin ,  Fozan O. El-Nounou ,  James B. Daigle ,  Andrew H. Cragg

    发明人： Michael S. H. Chu ,  Yem Chin ,  Fozan O. El-Nounou ,  James B. Daigle ,  Andrew H. Cragg

    IPC分类号： A61M39/06 ,  A61M5/178

    CPC分类号： A61M39/0613 ,  A61M2025/09125

    摘要： A catheter introducer sheath assembly, for introduction into a body passage of a catheter containing a filter comprises a flexible introducer sheath joined to the distal end of a closure device forming a through-passage with a diameter sufficient to pass the catheter therethrough. The closure device has a resilient member in the through-passage and two rotatable body portions, one stationary with respect to the resilient member, and the other rotatable about the axis of the resilient member with an internal cam circumferentially spaced around the axis. A compression member positioned radially in an extending aperture makes contact with both the resilient member and the cam surface to vary the through-passage allowing the operator to manually control the passage of the device. The sheath assembly receives a cathetory guidewire that slides through and extends beyond the closure device and the sheath. In another aspect, the combination sheath assembly and closure device forms a catheter introducer kit constructed to receive a stabilizer and a catheter of sufficiently large diameter to house a vena cava filter, and to pass the filter through the closure device and sheath for placement in the body by means of a dilator attached to the end of the sheath to facilitate guiding the filter to the desired position for its release from the sheath. The closure device is adjustable to prevent any backflow of fluid such as blood from the assembly during the filter placement procedure.

    摘要翻译： 用于引入到包含过滤器的导管的主体通道中的导管引导器套组件包括接合到封闭装置的远端的柔性引导器护套，形成具有足以使导管穿过的直径的通道。 闭合装置在通道中具有弹性构件，并且具有两个可旋转主体部分，一个相对于弹性构件固定，另一个可绕着该弹性构件的轴线旋转，并具有围绕该轴线周向间隔开的内部凸轮。 径向放置在延伸孔中的压缩构件与弹性构件和凸轮表面接触以改变穿通通道，允许操作者手动地控制装置的通过。 护套组件接收滑动穿过并延伸超过封闭装置和护套的导管导丝。 在另一方面，组合护套组件和闭合装置形成导管导引器套件，其被构造成接收足够大直径的稳定器和导管以容纳腔静脉过滤器，并且使过滤器通过闭合装置和护套以放置在 通过连接到护套的端部的扩张器，以便于将过滤器引导到期望的位置以使其从护套释放。 闭合装置是可调节的，以防止在过滤器放置过程期间任何来自组件的血液（例如血液）的回流。

    Sterilization methods and apparatus
    10.
    发明授权
    Sterilization methods and apparatus 有权
    灭菌方法和装置

    公开(公告)号：US08309023B2

    公开(公告)日：2012-11-13

    申请号：US12649044

    申请日：2009-12-29

    申请人： Kamal Ramzipoor ,  Chang Y. Lee ,  Fozan O. El-Nounou

    发明人： Kamal Ramzipoor ,  Chang Y. Lee ,  Fozan O. El-Nounou

    IPC分类号： A61L2/08 ,  A61L2/16

    CPC分类号： A61L2/20 ,  A61F2/958 ,  A61L2/08 ,  A61L2/087 ,  A61L2/206 ,  A61L2/208 ,  A61L2202/10 ,  A61L2202/24 ,  A61M25/0097 ,  A61M25/10 ,  A61M2025/0019

    摘要： Sterilization methods for implantable prostheses are described where a polymeric stent may be sterilized, e.g., via ETO sterilization, at a temperature below a glass transition temperature of the stent. A separate delivery catheter may be sterilized separately and the stent and delivery catheter may then be combined in an aseptic or semi-aseptic environment and sterilized as an assembled system such that the requirements for sterilizing the system are relatively lower. Additionally and/or alternatively, valve and filter assemblies may be used with an optional mandrel assembly for maintaining sterility of the internal components of a catheter system.

    摘要翻译： 描述了可植入假体的灭菌方法，其中可以在低于支架的玻璃化转变温度的温度下，例如经由ETO灭菌将聚合物支架灭菌。 单独的输送导管可以单独灭菌，然后将支架和输送导管组合在无菌或半无菌环境中并作为组装系统消毒，使得对系统消毒的要求相对较低。 另外和/或替代地，阀和过滤器组件可以与可选的心轴组件一起使用，以保持导管系统的内部组件的无菌性。