Tracking guidewire
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United States of America Patent
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-
Jun 18, 1996
Issued Date -
N/A
app pub date -
Dec 14, 1992
filing date -
Jun 11, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A guidewire for placement within a blood vessel for penetrating an occlusion therein. The guidewire comprises a length of flexible wire having a lumen extending therethrough. The distal end of the guidewire is generally arcuate and has a diameter greater than that of the wire immediately proximal thereto. A flexible stylet substantially the same length as the flexible wire may be disposed within the lumen of the wire. In operation, the arcuate distal end of the guidewire is positioned in the blood vessel against an occlusion, and a dottering action is thereafter provided whereby the arcuate distal end of the guidewire repeatedly impinges on the occlusion until penetration of the occlusion occurs.
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