06217549 is referenced by 166 patents and cites 94 patents.

An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter. A directed force is applied to the actuator in order to deploy the spreading member and displace a vascular occlusion creating a path to permit the passage of a guidewire or device therethrough.

Title
Methods and apparatus for treating vascular occlusions
Application Number
9/149875
Publication Number
6217549 (B1)
Application Date
September 8, 1998
Publication Date
April 17, 2001
Inventor
Charles Gresl
San Francisco
CA, US
Kent D Dell
Redwood City
CA, US
Suresh S Pai
Sunnyvale
CA, US
Robert L Wynne
Pacifica
CA, US
Charles F Milo
San Mateo
CA, US
Matthew R Selmon
Woodside
CA, US
Agent
Wilson Sonsini Goodrich & Rosati
US
Assignee
LuMend
CA, US
IPC
A61M 29/00
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