Magnetic guidewire for lesion crossing
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United States of America Patent
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Oct 19, 2010
Grant Date -
Apr 13, 2006
app pub date -
Sep 6, 2005
filing date -
Sep 7, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invented guidewire relates to improvements in a magnetically navigable medical guidewire to enable passage through an occluded or partially occluded vessel. The guidewire comprises an elongate wire having a proximal end and a distal end, wherein the distal end further comprises a magnetically responsive element and a helical thread formed on the tip. The distal end of the guidewire may be preferably aligned substantially in the direction of an applied magnetic field, after which the proximal end of the guidewire may be torqued to rotate the threaded tip while remaining aligned with the applied magnetic field and cause the tip to screw through the blockage in the occluded vessel.
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