(19)

(11)

EP 0 494 952 A1

(12)

(43) Date of publication: 22.07.1992 Bulletin 1992/30 (21) Application number: 90915546.0 (22) Date of filing: 04.10.1990

(51) International Patent Classification (IPC):  A61J 7/ 00( . ) A61J 7/ 04( . ) (86) International application number: PCT/SE1990/000641 (87) International publication number: WO 1991/004726 (18.04.1991 Gazette 1991/09)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 06.10.1989 SE 19890003297 (71) Applicant: VALDEMARSSON, Lars S-524 00 Herrljunga (SE)	(72) Inventor: VALDEMARSSON, Lars S-524 00 Herrljunga (SE) (74) Representative: Örtenblad, Bertil Tore  Noréns Patentbyra AB Box 27034 S-102 51 Stockholm S-102 51 Stockholm (SE)