(19)

(11)

EP 0 689 464 A1

(12)

(43) Date of publication: 03.01.1996 Bulletin 1996/01 (21) Application number: 94910629.0 (22) Date of filing: 15.03.1994

(51) International Patent Classification (IPC):  A61L 27/ 58( . ) A61L 31/ 14( . ) (86) International application number: PCT/SE1994/000222 (87) International publication number: WO 1994/021307 (29.09.1994 Gazette 1994/22)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 15.03.1993 SE 19930000852 (71) Applicant: MEDINVENT S-756 47 Uppsala (SE)	(72) Inventor: AGERUP, Bengt S-756 47 Uppsala (SE) (74) Representative: Mrazek, Werner, et al  Dr. Ludwig Brann Patentbyra AB P.O. Box 1344 S-751 43 Uppsala S-751 43 Uppsala (SE)