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.

Date of Patent:
Nov. 06, 2001

Filed:

Oct. 16, 1999
Applicant:
Inventors:

Richard I Brown, Northbrook, IL (US);

John T Foley, Wheeling, IL (US);

Timothy J Patno, Evanston, IL (US);

Assignee:

Baxter International Inc., Deerfield, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 1/712 ; B04B 1/500 ;
U.S. Cl.
CPC ...
B01D 1/712 ; B04B 1/500 ;
Abstract

Blood processing systems and methods separate blood into constituents including a plasma constituent that includes a platelet volume. The systems and methods detect the optical density of the plasma constituent and generate a first output indicative of the optical density. A processing element integrates the first output relative to the volume of plasma constituent and generates an integrated output. The integrated output correlates to the platelet volume. A second processing element generates an output based, at least in part, upon the integrated output, which comprises a value indicating a blood volume that needs be processed to obtain a desired platelet volume.


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