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    • 9. 发明授权
    • Trocar and cannula assembly having variable opening sealing gland and related methods
    • 套管针和插管组件具有可变开口密封压盖和相关方法
    • US07798991B2
    • 2010-09-21
    • US11985265
    • 2007-11-14
    • Rogelio A. Insignares
    • Rogelio A. Insignares
    • A61M31/00
    • A61B17/3498A61B17/3462
    • A trocar system for endoscopic surgery, cap assembly, and related methods are provided. The cap assembly includes a housing with an opening formed in line with an axis of the housing. The cap assembly also includes a variable opening flexible sealing gland having a stack of valve body sections each including a valve extension extending from a valve ring and having a valve opening and a slit extending between a valve opening and the valve ring. The combination of the individual valve body sections forms a substantially conically shaped iris diaphragm portion of the sealing gland. The iris is positioned to individually and separately receive elongate tools so that when any one of the elongate tools is positioned through the valve opening, a seal is maintained between peripheries of the seal gland surrounding the iris and outer peripheries of the inserted elongate tool.
    • 提供了一种内窥镜手术套管针系统,帽组件及相关方法。 盖组件包括具有与壳体的轴线成直线形成的开口的壳体。 盖组件还包括可变开口柔性密封压盖,其具有一组阀体部分,每个阀体部分包括从阀环延伸的阀延伸部,并且具有阀开口和在阀开口和阀环之间延伸的狭缝。 单个阀体部分的组合形成密封压盖的基本上圆锥形的虹膜隔膜部分。 虹膜被定位成单独并分开地容纳细长工具,使得当任何一个细长工具通过阀开口定位时,在围绕虹膜的密封压盖的周边和插入的细长工具的外周之间保持密封。