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. 25, 1997
Filed:
Jun. 02, 1995
Applicant:
Inventors:
Jean M Payrat, Nivelles, BE;
Donald W Schoendorfer, Santa Ana, CA (US);
Assignee:
Baxter International Inc., Deerfield, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
210767 ; 210206 ; 2102571 ; 210782 ; 210789 ; 210800 ; 210805 ;
Abstract
Methods and apparatus are disclosed for separating and collecting blood fractions or components such as platelets. A first anticoagulant solution is added to whole blood, which is then separated into platelet-rich plasma and red cells. A second anticoagulant is added to the platelet rich plasma, which is then separated into platelet-poor plasma and platelet concentrate. The rate of red cell sedimentation is increased and the time of the separation/collection procedure may be reduced when the pH of the first anticoagulant is greater than approximately 6.0.