Replacement heart valves, delivery devices and methods
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United States of America Patent
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Apr 24, 2018
Issued Date -
N/A
app pub date -
May 1, 2015
filing date -
Sep 29, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A replacement heart valve and method of treating valve insufficiency includes an expandable frame configured to engage a native valve annulus. A valve body is coupled to the frame. The valve body can include a leaflet portion and possibly a skirt portion. A portion of the frame has a foreshortening portion configured to longitudinally expand when urged to a radially compacted state and longitudinally contract when urged to a radially expanded state. In one embodiment the valve skirt is attached to the frame so that it can adapt to changes in the length of the frame. A delivery device in some embodiments can use one or more coverings, such as sheaths, to controllably release the replacement heart valve at a native heart valve.
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