(19)

(11)

EP 0 959 921 A1

(12)

(43) Date of publication: 01.12.1999 Bulletin 1999/48 (21) Application number: 97906952.0 (22) Date of filing: 14.03.1997

(51) International Patent Classification (IPC):  A61M 5/ 00( . ) A61M 5/ 172( . ) (86) International application number: PCT/BE1997/000036 (87) International publication number: WO 1997/034648 (25.09.1997 Gazette 1997/41)

(84) Designated Contracting States: AT BE DE DK ES FI FR GB GR IE IT LU NL PT SE (30) Priority: 18.03.1996 BE 19960000237 (71) Applicants: Struys, Michel 9000 Gent (BE) De Smet, Tom 9111 Belsele (BE)	(72) Inventors: Struys, Michel 9000 Gent (BE) De Smet, Tom 9111 Belsele (BE) (74) Representative: Vanderperre, Robert  Gevers & Vander Haeghen Livornostraat 7 1060 Brussel 1060 Brussel (BE)