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:
Aug. 10, 1993
Filed:
Dec. 11, 1990
Daniel H Duff, Irvine, CA (US);
Baxter International Inc., Deerfield, IL (US);
Abstract
A processing system separates a cellular rich suspension into a cellular first constituent and cellular-free second constituent. The system includes a separation zone that receives the cellular rich suspension and discharges the first and second constituents. The system coordinates the flow of cellular rich suspension into the separation zone with the flow of the cellular-free second constituent from the separation zone to get a desired nominal separation efficiency. The system also recirculates the cellular first constituent back into the zone. By continuously recirculating the cellular first constituent back into the separation zone, the system is can get and maintain a desired volume of the first constituent, despite the volume of cellular rich suspension that is processed. By continuously recirculating the cellular first constituent back into the separation zone, the system also can provide operating conditions within the separation zone that maximize separation efficiencies but that, without the benefits of recirculation, could otherwise damage or traumatize the cellular first constituent.