Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Christian S. Eversull0
John C. Tanner, III0
Michael A. Evans0
Stephen A. Leeflang0
Denise M. Demarais0
Gwendolyn A. Watanabe0
Date of Patent
February 2, 2010
0Patent Application Number
107974820
Date Filed
March 9, 2004
0Patent Citations Received
...
Patent Primary Examiner
Patent abstract
Material transport catheters and methods for their use rely on rotation of an impeller within a catheter body and a clearing element for preventing buildup of materials at the opening of the catheter body. The impeller preferably comprises an inner tube or shaft having a helical rotor formed over an outer surface thereof. The clearing element may comprise a free end of a structure near the distal end of the catheter body for disrupting clot, wherein the free end of the structure extends into the distal opening of the catheter body to break up materials as the impeller is rotated. Alternatively, the clearing element may comprise a cutting member disposed at the distal opening of the catheter body.
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