(19)

(11)

EP 1 272 273 A1

(12)

(43) Date of publication: 08.01.2003 Bulletin 2003/02 (21) Application number: 00993309.4 (22) Date of filing: 11.12.2000

(51) International Patent Classification (IPC)7: B01L 3/00 (86) International application number: PCT/GB0004/754 (87) International publication number: WO 0104/1930 (14.06.2001 Gazette 2001/24)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 10.12.1999 GB 9929347 (71) Applicant: Medic Group USA Inc. Jackson, WI 53037 (US)	(72) Inventors: Stanley, Christopher John Huntingdon,Cambridgeshire PE17 3BN (GB) Renfrew, Bruce Leicester LE2 8PF (GB) (74) Representative: Holme, Edvard  Holme Patent A/S,Vesterbrogade 20 1620 Copenhagen V. 1620 Copenhagen V. (DK)