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:
Jun. 17, 2003
Filed:
Sep. 21, 1999
Applicant:
Inventors:
Roger J. Elgas, Anaheim Hills, CA (US);
Michael P. Petersen, Eden Prairie, MN (US);
Assignee:
Medtronic, Inc., Brooklyn Park, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 3/100 ;
U.S. Cl.
CPC ...
A61M 3/100 ;
Abstract
Retrograde flow in an extracorporeal blood circuit using a centrifugal blood pump is prevented by passing the blood line through a normally-closed powered occlusion clamp, and opening the clamp in response to powering of the pump or, preferably, in response to the sensing of forward blood flow in the extracorporeal circuit.