Medical device with dual expansion mechanism
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United States of America Patent
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Jul 28, 2015
Grant Date -
Jan 10, 2008
app pub date -
Jul 5, 2007
filing date -
Jul 7, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Apparatuses and methods for accessing a tissue and expanding an apparatus within the tissue are disclosed. In one embodiment, an apparatus includes a first expandable member and a second expandable member disposed within the first expandable member. The first expandable member is configured to disrupt a body when in an expanded configuration and rotated relative to the body. The second expandable member is configured to block at least a portion of disrupted portions of the body from being disposed within the first expandable member. In some embodiments, the first expandable member is coupled to a sheath. The first expandable member is configured to be inserted at least partially into the body while disposed within a lumen of the sheath. The sheath is configured to be moved proximally while at least partially inserted into the body such that the first expandable member is moved from its collapsed to its expanded configuration.
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