(19)

(11)

EP 0 850 443 A1

(12)

(43) Date of publication: 01.07.1998 Bulletin 1998/27 (21) Application number: 96930184.0 (22) Date of filing: 11.09.1996

(51) International Patent Classification (IPC):  G06F 3/ 033( . ) A61N 5/ 10( . ) G06F 3/ 042( . ) (86) International application number: PCT/FI1996/000481 (87) International publication number: WO 1997/010540 (20.03.1997 Gazette 1997/13)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE (30) Priority: 12.09.1995 FI 19950004271 (71) Applicant: Varian-Dosetek Oy 2130 Espoo (FI)	(72) Inventor: SALLINEN, Sami FIN-02230 Espoo (FI) (74) Representative: Laitinen, Pauli Sakari  Patentti-Laitinen Oy, P.O. Box 29 02771 Espoo 02771 Espoo (FI)