公开(公告)号：WO2005058409A1

公开(公告)日：2005-06-30

申请号：PCT/US2004/041359

申请日：2004-12-10

Applicant: COOK INCORPORATION

Inventor： HRUSKA, Christopher, L. ,  DIXON, Christopher, G. ,  BARR, Aaron ,  PAUL, Ram, H., Jr. ,  ELLER, Alan, A. ,  OSBORNE, Thomas, A.

IPC: A61M39/06

CPC classification number: A61M39/0613 ,  A61B17/3462 ,  A61B17/3498 ,  A61B2017/00477 ,  A61M39/0208 ,  A61M2039/0633 ,  A61M2039/064 ,  A61M2039/0686

Abstract: An iris-type valve assembly for controlling a flow of fluid. The assembly comprises a base member, a rotatable member, and an elongated elastomeric valve sheath. The distal end of the valve sheath is secured to the base member and the proximal end of the valve sheath is secured to the rotatable member. At least one of the vale sheath ends includes a flange that is secured to a valve-receiving surface of the base member or the rotatable member. The base member and the rotatable member are aligned to define an elongated passageway therethrough for passage of an interventional device, and the elastomeric valve sheath is disposed along the passageway and has a longitudinal opening therethrough for passage of the interventional device. Upon rotation of the rotatable member relative to the base member the longitudinal opening of the valve sheath is selectively constrictable to comprise a seal around the interventional device. The assembly may be provided with ratcheting members to inhibit recoil of the rotatable member, and rib members along the inner surface of the valve sheath to enhance the seal provided by the assembly.

Abstract translation: 一种用于控制流体流动的虹膜式阀组件。 该组件包括基部构件，可旋转构件和细长的弹性阀护套。 阀套的远端固定在底座上，阀套的近端固定在旋转件上。 至少一个阀瓣端部包括固定到基部构件或可旋转构件的阀接收表面的凸缘。 基部构件和可旋转构件对准以限定穿过其的通道，用于介入装置的通过，并且弹性体阀护套沿着通道设置并且具有穿过其的介入装置通过的纵向开口。 当可旋转构件相对于基座构件旋转时，阀套的纵向开口选择性地可收缩以包括围绕介入装置的密封。 组件可以设有棘轮构件以阻止可旋转构件的反冲，以及沿着阀套的内表面的肋构件，以增强由组件提供的密封。