Apparatus and method for crossing a position along a tubular body structure
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United States of America Patent
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Jan 14, 2003
Grant Date -
N/A
app pub date -
Nov 10, 2000
filing date -
Nov 10, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A vascular occlusion-crossing assembly (2) includes an elongate delivery system (4) and a flexible elongate member (6) which passes along the body (34) of the delivery assembly. A laterally-extending, vascular tunica-separation guide (32) helps guide the distal end (36) of the delivery assembly between tunica layers (40, 42, 44) to a position distal of an occlusion (52). The distal portion (30) of a distally moving elongate member, typically a flexible hollow needle, is deflected into this distal lumen (54) on the far side of an occlusion (52). A guidewire (62) may be passed along the elongate member thereby crossing the occlusion.
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