(19)

(11)

EP 0 335 882 A1

(12)

(43) Date of publication: 11.10.1989 Bulletin 1989/41 (21) Application number: 87907885.0 (22) Date of filing: 30.10.1987

(51) International Patent Classification (IPC):  B04B 5/ 02( . ) A61M 1/ 36( . ) A61M 1/ 02( . ) B04B 5/ 04( . ) (86) International application number: PCT/US1987/002899 (87) International publication number: WO 1988/003045 (05.05.1988 Gazette 1988/10)

(84) Designated Contracting States: BE CH DE FR GB IT LI NL SE (30) Priority: 31.10.1986 US 19860925318 04.08.1987 US 19870081484 (71) Applicant: NORTH AMERICAN BIOLOGICALS, INC. Miami, FL 33169 (US)	(72) Inventors: DILLON, David, M. Dover, MA 02030 (US) FRANKS, Stephen, H. Hopkinton, MA 01748 (US) McCARTY, Read, S. Hingham, MA 02043 (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)