Tracking guidewire

Details Tracking guidewire Tracking guidewire

A - Human Necessities

61

M

A61M 25/09 (2006.01) A61M 29/00 (2006.01) A61B 17/22 (2006.01)

Patent

CA 2084310

A guidewire and guidewire assembly (10) for placement within a blood vessel for penetrating an occlusion therein. The guidewire comprises a length of flexible wire (12) having a concentric lumen (14) running its entire length and a distal end por- tion (20) having an arcuate tip (22) and a diameter greater than that of the wire immediately proximal thereto. The guidewire as- sembly comprises the guidewire described along with a flexible stylet (32) substantially the same length as the flexible wire and disposed within the lumen of the wire. In operation, the distal end portion is positioned in the blood vessel against an occlusion, and a dottering action is thereafter provided whereby the distal end portion repeatedly impinges on the occlusion until penetra- tion of the occlusion occurs.

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