公开(公告)号：US20120046595A1

公开(公告)日：2012-02-23

申请号：US12858193

申请日：2010-08-17

申请人： Stephen F. Wilson ,  Michael A. DeFusco

发明人： Stephen F. Wilson ,  Michael A. DeFusco

IPC分类号： A61M5/00

CPC分类号： A61M27/006 ,  F16K15/046 ,  F16K15/183 ,  F16K31/088 ,  F16K31/52425 ,  F16K35/16 ,  F16K37/0058 ,  Y10T137/7906 ,  Y10T137/8242

摘要： A valve unit capable of being implanted in a patient and having adjustable performance settings, such as pressure settings and/or flow control, to regulate passage of a bodily fluid. A casing defines a port for the bodily fluid, and a valve mechanism positioned at the port includes a movable valve member. The valve unit further includes a rotor disposed at a first location in the casing and having an axle which turns about an axis of rotation. The rotor defines a plurality of arcuate, radially flat cam surfaces. Each cam surface occupies an arc about the axis of rotation. A spring arm unit is disposed at a second location in the casing having a cam follower arm in slidable contact with the cam surfaces of the rotor and having a resilient spring element applying a closing effect with the movable valve member to establish a performance setting for the valve unit. Sufficient rotation of the rotor to change the cam surface in contact with the cam follower alters the closing effect with which the valve member moves relative to the port and thereby alters the performance setting of the valve unit.

摘要翻译： 能够植入患者体内并具有调节性能设置（例如压力设置和/或流量控制）以调节体液通过的阀单元。 壳体限定用于体液的端口，并且位于端口处的阀机构包括可移动的阀构件。 阀单元还包括设置在壳体中的第一位置处的转子，并且具有围绕旋转轴线转动的轴。 转子限定多个弧形的径向平坦的凸轮表面。 每个凸轮表面围绕旋转轴线占据弧。 弹簧臂单元设置在壳体中的第二位置处，具有与转子的凸轮表面滑动接触的凸轮从动臂，并具有弹性弹簧元件，该弹簧元件与可动阀构件施加闭合效果，以建立用于 阀门单元 转子的足够旋转以改变与凸轮从动件接触的凸轮表面，改变了阀构件相对于端口移动的关闭效果，从而改变了阀单元的性能设置。