(19)

(11)

EP 0 515 489 A1

(12)

(43) Date of publication: 02.12.1992 Bulletin 1992/49 (21) Application number: 91904448.0 (22) Date of filing: 12.02.1991

(51) International Patent Classification (IPC):  A61F 9/ 007( . ) (86) International application number: PCT/SE1991/000097 (87) International publication number: WO 1991/012046 (22.08.1991 Gazette 1991/19)

(84) Designated Contracting States: DE FR (30) Priority: 12.02.1990 SE 19900000491 (71) Applicant: ATOS MEDICAL AB S-242 93 Hörby (SE)	(72) Inventors: PERSSON, Jan-Ove S-243 95 Höör (SE) GRANSTRÖM, Per-Arne S-146 00 Tullinge (SE) (74) Representative: Ström, Tore, et al  Ström & Gulliksson AB Studentgatan 1 P.O. Box 4188 S-203 13 Malmö S-203 13 Malmö (SE)