Perfusion dilation catheter system and methods of use
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United States of America Patent
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Nov 1, 2016
Grant Date -
Sep 6, 2012
app pub date -
Mar 4, 2011
filing date -
Mar 4, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A system includes an elongate catheter having a self-expanding frame disposed at the distal end of the catheter. The frame includes a plurality of longitudinal struts defined by parallel slots. The frame may be constrained into a radially compressed configuration for delivery to a treatment site. A helical balloon is mounted about the frame. Upon release from the constraining mechanism, the frame returns to a heat-set radially expanded configuration to initiate dilation of a treatment site in a patient. Inflating the balloon around the expanded frame further expands the initial radial dilation of the site. Proximal and distal ends of the slots are unobstructed by the balloon to permit flow of a fluid through the slots and through a lumen defined by an interior surface of the balloon when the frame is in the radially expanded configuration.
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