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:
Mar. 26, 1996
Filed:
Nov. 10, 1994
Applicant:
Inventor:
Donald A Raible, Santa Ana, CA (US);
Assignee:
Baxter International Inc., Deerfield, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
415 74 ; 415143 ; 415230 ; 415900 ; 416177 ;
Abstract
A dynamic blood pump includes a rotating core member and rotating ring portion effective to pre-spin blood before the blood enteres helical pumping channels of the pump. The blood is pumped and further rotated as it moves axially along the helical channels toward a centrifugal section of the pump. At the centrifugal pumping section circumferential velocity differentials are also controlled to diminish damage to the blood. Outwardly of the centrifugal pumping section, a forced-vortex pumping section communicates the pumped blood to an exit port.