(19)

(11)

EP 0 274 493 A1

(12)

(43) Date of publication: 20.07.1988 Bulletin 1988/29 (21) Application number: 87904299.0 (22) Date of filing: 06.07.1987

(51) International Patent Classification (IPC):  A61M 16/ 16( . ) A61M 16/ 00( . ) (86) International application number: PCT/GB1987/000473 (87) International publication number: WO 1988/000068 (14.01.1988 Gazette 1988/02)

(84) Designated Contracting States: AT BE CH DE FR IT LI LU NL SE (30) Priority: 04.07.1986 GB 19860016339 20.05.1987 GB 19870011861 (71) Applicant: VIROTHERM LABORATORIES LTD London W1Y 2BP (GB)	(72) Inventor: BEACHAM, Allan London W1Y 2BP (GB) (74) Representative: Sommerville, John Henry, et al  SOMMERVILLE & RUSHTON 11 Holywell Hill St. Albans Hertfordshire, AL1 1EZ St. Albans Hertfordshire, AL1 1EZ (GB)