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:
May. 02, 1995
Filed:
Feb. 09, 1994
Applicant:
Inventors:
Lloyd C Hubbard, Excelsior, MN (US);
Earl W Clausen, Eden Prairie, MN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
422 46 ; 422 48 ; 21032175 ; 210651 ; 41742314 ; 435-2 ;
Abstract
A system of processing blood during a surgical procedure includes a centrifugal blood pump with an inlet and an outlet, a means for oxygenating the blood and a means for recirculating a portion of the oxygenated blood to the inlet of the blood pump. The volume of blood recirculated through the system can be controlled by a flow control means. Recirculation of a portion of the blood reduces the cost and size of the system.