Super elastic alloy guidewire
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United States of America Patent
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Oct 31, 2000
Grant Date -
N/A
app pub date -
Oct 31, 1995
filing date -
May 11, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
This invention is a surgical device. It is a guidewire for use in a catheter and is used for accessing a targeted site in a lumen system of a patient's body. The guidewire may be of a high elasticity metal alloy, preferably a Ni-Ti alloy, having specified physical parameters, and is especially useful for accessing peripheral or soft tissue targets. A special variation of the inventive guidewire includes the concept of coating the wire with a one or more lubricious polymers to enhance its suitability for use within catheters and with the interior of vascular lumen. The 'necked' guidewire tip also forms a specific variant of the invention.
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