Apparatus and method for delivering fasteners during valve replacement
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United States of America Patent
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Aug 6, 2013
Grant Date -
May 22, 2008
app pub date -
Jan 30, 2008
filing date -
Dec 3, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fastener delivery tool includes a loading chamber for receiving a fastener having a pair of tines overlapping one another to define a loop in a parent or relaxed state. A retaining member retains the fastener in the loading chamber. The fastener delivery tool also includes a tongue, pusher member, and an ejection track communicating with the loading chamber. An actuator causes the tongue to move to engage the tines of the fastener to transform the fastener from the relaxed state to a constrained state defining a U-shape. The actuator also causes the pusher member to release the retaining member and advance the fastener down the ejection track in the constrained state. The tool also includes a trigger for ejecting the fastener completely from the ejection track. The fastener may be used to secure a prosthetic heart valve or components thereof into surrounding tissue, e.g., within a tissue annulus.
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