(19)

(11)

EP 0 714 264 A1

(12)

(43) Date of publication: 05.06.1996 Bulletin 1996/23 (21) Application number: 94929039.0 (22) Date of filing: 22.08.1994

(51) International Patent Classification (IPC):  G01F 23/ 24( . ) A61B 5/ 20( . ) (86) International application number: PCT/NL1994/000200 (87) International publication number: WO 1995/005774 (02.03.1995 Gazette 1995/10)

(84) Designated Contracting States: BE DE FR GB IT NL (30) Priority: 20.08.1993 NL 19930001449 (71) Applicant: URITEL B.V. 6525 GA Nijmegen (NL)	(72) Inventors: WIJKSTRA, Hessel NL-6525 RV Nijmegen (NL) KERSTEN, Petrus Leonardus NL-6533 VZ Nijmegen (NL) (74) Representative: Land, Addick Adrianus Gosling  Arnold & Siedsma, Advocaten en Octrooigemachtigden, Sweelinckplein 1 2517 GK Den Haag 2517 GK Den Haag (NL)