(19)

(11)

EP 0 422 045 A1

(12)

(43) Date of publication: 17.04.1991 Bulletin 1991/16 (21) Application number: 89906844.0 (22) Date of filing: 23.05.1989

(51) International Patent Classification (IPC):  A61B 5/ 15( . ) A61M 5/ 34( . ) A61M 5/ 32( . ) (86) International application number: PCT/SE1989/000290 (87) International publication number: WO 1989/011304 (30.11.1989 Gazette 1989/28)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 24.05.1988 SE 19880001930 (71) Applicant: AMEUR, Hanafi S-752 33 Uppsala (SE)	(72) Inventor: AMEUR, Hanafi S-752 33 Uppsala (SE) (74) Representative: Kummelsten, Per-Arne  UPPSALA PATENTBYRA P.O. Box 9013 S-750 09 Uppsala S-750 09 Uppsala (SE)