Methods and apparatus for an adjustable stiffness catheter
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United States of America Patent
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Feb 13, 2018
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N/A
app pub date -
Jun 2, 2014
filing date -
Jan 6, 2011
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Abstract
Apparatus and methods for an endovascular catheter that can be inserted within tortuous body anatomies and then selectively stiffened and fixed in place. In a particular embodiment, this stiffness is reversible. The stiffness or a comparable mechanical characteristic of the catheter assembly may be adjusted to a relatively low value during insertion (so that it easily navigates a guide wire or the like), and then subsequently adjusted to a relatively high value in situ to keep the catheter assembly substantially fixed in place (i.e., during delivery of an interventional device).
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