Device for temporarily closing a canal in a body, in particular for assisting the function of the heart by application of counter-pressure
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United States of America Patent
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Jan 19, 1999
Grant Date -
N/A
app pub date -
Oct 17, 1997
filing date -
Apr 21, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention concerns a device for temporarily closing a canal in a body, in particular for assisting the function of the heart by application of counter-pressure. The device is characterised in that it comprises a first inflatable structure (1) which, in the inflated state, defines a sleeve shaped to match the internal surface of the canal, providing a central conduit (4). The device further comprises a second inflatable structure which expands radially, preferably from the exterior to the interior, is held by the first structure (1) and shaped such that, in the inflated state, it permits substantially complete closure of the central conduit (4) formed after inflation of the first structure. The device finally comprises means allowing each of these first and second inflatable structures to be in fluid communication with a fluid delivery source.
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