(19)

(11)

EP 0 707 633 A1

(12)

(43) Date of publication: 24.04.1996 Bulletin 1996/17 (21) Application number: 94921349.0 (22) Date of filing: 22.06.1994

(51) International Patent Classification (IPC):  A61L 2/ 00( . ) B01D 61/ 00( . ) C12N 7/ 04( . ) A61M 1/ 36( . ) C12M 1/ 12( . ) (86) International application number: PCT/US1994/007018 (87) International publication number: WO 1995/000631 (05.01.1995 Gazette 1995/02)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 23.06.1993 US 19930081774 (71) Applicant: New York Blood Center, Inc. New York, New York 10021 (US)	(72) Inventors: MARGOLIS-NUNNO, Henrietta New York, NY 10016 (US) HOROWITZ, Bernard New Rochelle, NY 10804 (US) (74) Representative: Minderop, Ralph H., Dr. rer. nat.  Cohausz & Florack, Patentanwälte, Kanzlerstrasse 8a D-40472 Düsseldorf D-40472 Düsseldorf (DE)