The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2013
Filed:
Aug. 20, 2012
Denise M. Demarais, Los Gatos, CA (US);
Stephen A. Leeflang, Sunnyvale, CA (US);
Michael A. Evans, Palo Alto, CA (US);
Gwendolyn A. Watanabe, Sunnyvale, CA (US);
John C. Tanner, Iii, Los Angeles, CA (US);
Christian S. Eversull, Palo Alto, CA (US);
Denise M. Demarais, Los Gatos, CA (US);
Stephen A. Leeflang, Sunnyvale, CA (US);
Michael A. Evans, Palo Alto, CA (US);
Gwendolyn A. Watanabe, Sunnyvale, CA (US);
John C. Tanner, III, Los Angeles, CA (US);
Christian S. Eversull, Palo Alto, CA (US);
Covidien LP, Mansfield, MA (US);
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 fainted 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.