(19)

(11)

EP 0 788 389 A1

(12)

(43) Date of publication: 13.08.1997 Bulletin 1997/33 (21) Application number: 94931218.0 (22) Date of filing: 18.10.1994

(51) International Patent Classification (IPC):  A61M 25/ 06( . ) (86) International application number: PCT/NO1994/000167 (87) International publication number: WO 1995/011054 (27.04.1995 Gazette 1995/18)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 18.10.1993 NO 19930003735 (71) Applicants: JOHNSEN, Knut N-1400 Ski (NO) Blach, Jorgen DK-4300 Holbok (DK) Johansen, Truls E. Bjerklund N-3290 Stavern (NO)	(72) Inventors: JOHNSEN, Knut N-1400 Ski (NO) Blach, Jorgen DK-4300 Holbok (DK) Johansen, Truls E. Bjerklund N-3290 Stavern (NO) (74) Representative: Baker, Colin John  Withers & Rogers, 4 Dyer's Buildings, Holborn London EC1N 2JT London EC1N 2JT (GB)