(19)

(11)

EP 0 892 629 A1

(12)

(43) Date of publication: 27.01.1999 Bulletin 1999/04 (21) Application number: 97910588.0 (22) Date of filing: 17.11.1997

(51) International Patent Classification (IPC):  A61H 7/ 00( . ) A61H 23/ 04( . ) A61H 15/ 02( . ) (86) International application number: PCT/IB1997/001447 (87) International publication number: WO 1998/025568 (18.06.1998 Gazette 1998/24)

(84) Designated Contracting States: DE FR GB (30) Priority: 13.12.1996 EP 19960203532 (71) Applicants: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL) PHILIPS NORDEN AB 164 85 Stockholm (SE)	(72) Inventors: VAN DER SLUIJS, Willem, Ludovicus, Nicolaas NL-5656 AA Eindhoven (NL) VAN HERK, Johannes, Johanna NL-5656 AA Eindhoven (NL) (74) Representative: Bos, Kornelis Sjoerd, et al  INTERNATIONAAL OCTROOIBUREAU B.V., Prof. Holstlaan 6 5656 AA Eindhoven 5656 AA Eindhoven (NL)