Deployment handle for an implant deployment device
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United States of America Patent
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Issued Date -
Apr 23, 2009
app pub date -
Oct 9, 2008
filing date -
Oct 9, 2007
priority date (Note) -
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Abstract
A deployment handle for an implant deployment device (100) facilitates withdrawal of a sheath (32). The sheath (32) is gripped between a first cam cleat (122) and a first ledge (124) and a second cam cleat (126) and a second ledge (128). The first cam cleat (122) and the first ledge (124) are attached to a carriage (120), which moves in a withdrawal direction upon actuation of a lever (130). During movement of the carriage (120) in the withdrawal direction, the first cam cleat (122) grips the sheath (32) or a sheath pulling member (118) thus causing movement of the sheath (32) in the withdrawal direction. During this movement, the second cam cleat (126) releases its grip upon the sheath (32) or a sheath pulling member (118). Upon release of the lever (130), the carriage (120) moves in a direction opposite to the withdrawal direction by means of a helical spring (140). During this movement, the second cam cleat (126) grips the sheath (32) or the sheath pulling member (118) whilst the first cam cleat (122) releases its grip upon the sheath (32) or the sheath pulling member (118). The deployment handle (100) allows a controlled, step-wise withdrawal of a sheath (32) covering an implant (18).
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