(19)

(11)

EP 0 935 481 A1

(12)

(43) Date of publication: 18.08.1999 Bulletin 1999/33 (21) Application number: 97937569.0 (22) Date of filing: 12.08.1997

(51) International Patent Classification (IPC):  A61M 39/ 10( . ) A61M 39/ 12( . ) (86) International application number: PCT/EP1997/004383 (87) International publication number: WO 1998/007466 (26.02.1998 Gazette 1998/08)

(84) Designated Contracting States: AT BE CH DE ES FR GB GR IT LI NL SE (30) Priority: 16.08.1996 IT 1996UD00160 (71) Applicant: CRB Nederland B.V. 1076 EE Amsterdam (NL)	(72) Inventor: PADERNI, Valter I-33054 Lignano Sabbiadoro (IT) (74) Representative: Modiano, Guido, Dr.-Ing., et al  Modiano & Associati SpA Via Meravigli, 16 20123 Milano 20123 Milano (IT)