(19)

(11)

EP 0 837 661 A1

(12)

(43) Date of publication: 29.04.1998 Bulletin 1998/18 (21) Application number: 95901355.0 (22) Date of filing: 17.11.1994

(51) International Patent Classification (IPC):  A61B 19/ 00( . ) A61F 2/ 00( . ) (86) International application number: PCT/DK1994/000434 (87) International publication number: WO 1995/013762 (26.05.1995 Gazette 1995/22)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 17.11.1993 DK 19930001296 (71) Applicant: EL-DOT KS 3300 Frederiksvaerk (DK)	(72) Inventor: NIEBEN, Ole, Gyring DK-2200 Kobenhavn N (DK) (74) Representative: Kyed, Iver  c/o Hofman-Bang & Boutard, Lehmann & Ree A/S, Hans Bekkevolds Allé 7 2900 Hellerup 2900 Hellerup (DK)