(19)
(11) EP 0 363 120 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.01.1991 Bulletin 1991/04

(43) Date of publication A2:
11.04.1990 Bulletin 1990/15

(21) Application number: 89310048.7

(22) Date of filing: 02.10.1989
(51) International Patent Classification (IPC)5: B04B 5/04
(84) Designated Contracting States:
BE DE FR GB IT

(30) Priority: 07.10.1988 US 255127

(71) Applicant: BAXTER INTERNATIONAL INC.
Deerfield, IL 60015 (US)

(72) Inventors:
  • Dennehey, Michael T.
    Arlington Heights Il 60004 (US)
  • West, Joseph C.I., Jr.
    Libertyville IL 60048 (US)

(74) Representative: MacGregor, Gordon et al
ERIC POTTER CLARKSON St. Mary's Court St. Mary's Gate
Nottingham, NG1 1LE
Nottingham, NG1 1LE (GB)


(56) References cited: : 
   
       


    (54) Centrifugal fluid processing system and method


    (57) A centrifugal processing system and method introduces fluid to be processed into a centrifugation chamber, while directing the fluid away from the region of the chamber where the largest centrifugal (or "G") forces exist. The fluid is also conveyed into the force field as a generally uniform stream having reduced turbulence or being essentially free of turbulence. The system and method thereby establish, upon the entry of a high velocity fluid stream into the centrifugal field, non-turbulent and uniform flow conditions conducive to effective separation. The system and method also direct the fluid in a way the maximizes the effective surface area of the centrifugation chamber for separation. Effective separation can thereby be achieved at high inlet flow rates.







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