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IMPLANTABLE ADJUSTABLE VALVE
专利权人:
Stephen F. Wilson
发明人:
Stephen F. Wilson,Michael A. DeFusco
申请号:
US12858193
公开号:
US20120046595A1
申请日:
2010.08.17
申请国别(地区):
US
年份:
2012
代理人:
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.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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