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:
Nov. 22, 1983
Filed:
Sep. 03, 1981
Applicant:
Inventors:
Donald W Schoendorfer, Brookline, MA (US);
Lee E Hansen, Wellesley, MA (US);
Assignee:
Haemonetics Corporation, Braintree, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B04B / ;
U.S. Cl.
CPC ...
494 10 ; 494 27 ; 494 35 ; 494 37 ; 604-6 ;
Abstract
This invention relates to an improvement in two-port centrifuge bowls in which component yield is enhanced by utilizing the centrifuge bowl for eluttriation, as well as centrifugation. In a particular embodiment, platelet yield is improved by terminating flow of anticoagulated whole blood from the donor to the bowl and pumping low density fluid, preferably plasma, back into the bowl at a relatively high rate to elutriate centrifugally separated cells in the bowl.