(19)

(11)

EP 0 536 211 A1

(12)

(43) Date of publication: 14.04.1993 Bulletin 1993/15 (21) Application number: 91911771.0 (22) Date of filing: 27.06.1991

(51) International Patent Classification (IPC):  A61K 41/ 00( . ) A61K 47/ 48( . ) (86) International application number: PCT/GB1991/001044 (87) International publication number: WO 1992/000106 (09.01.1992 Gazette 1992/02)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 27.06.1990 GB 19900014307 (71) Applicant: DIOMED LIMITED Cambridge CB4 2PF (GB)	(72) Inventors: RAVEN, Anthony Royston Herts. SG8 6BN (GB) STANLEY, Christopher, John St Ives Cambridgeshire PE17 4JB (GB) (74) Representative: Calamita, Roberto  Frank B. Dehn & Co. Imperial House 15-19 Kingsway London WC2B 6UZ London WC2B 6UZ (GB)