(19)

(11)

EP 0 871 397 A1

(12)

(43) Date of publication: 21.10.1998 Bulletin 1998/43 (21) Application number: 96911876.0 (22) Date of filing: 14.05.1996

(51) International Patent Classification (IPC):  G01L 1/ 24( . ) G01D 5/ 26( . ) G01J 5/ 06( . ) G01K 11/ 32( . ) G02B 6/ 42( . ) A61B 5/ 01( . ) G01D 5/ 353( . ) G01K 11/ 12( . ) G01N 21/ 27( . ) (86) International application number: PCT/AU1996/000293 (87) International publication number: WO 1996/036276 (21.11.1996 Gazette 1996/51)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE (30) Priority: 15.05.1995 AU 1995PN02971 (71) Applicant: THE UNIVERSITY OF SYDNEY Sydney, New South Wales 2006 (AU)	(72) Inventors: HAMMON, Timothy The University of Sydney Parramatta Road Sydney, NSW 2006 (AU) STOKES, Anthony The University of Sydney Sydney, NSW 2006 (AU) (74) Representative: Lunt, Mark George Francis  Dibb Lupton Alsop Fountain Precinct Balm Green Sheffield S1 1RZ Sheffield S1 1RZ (GB)