(19)

(11)

EP 0 871 506 A2

(12)

(43) Date of publication: 21.10.1998 Bulletin 1998/43 (21) Application number: 96940049.0 (22) Date of filing: 02.12.1996

(51) International Patent Classification (IPC):  A61M 5/ 24( . ) A61M 5/ 34( . ) A61M 5/ 32( . ) A61M 5/ 50( . ) (86) International application number: PCT/GB1996/002978 (87) International publication number: WO 1997/020586 (12.06.1997 Gazette 1997/25)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IE IT LI NL SE (30) Priority: 02.12.1995 GB 19950024722 (71) Applicant: Epsom Glass Industries Limited Epsom, Surrey KT19 9AN (GB)	(72) Inventor: KATZ, Richard Anthony Eric Horsham, W. Sussex RH12 3SH (GB) (74) Representative: Rees, David Christopher, et al  Kilburn & Strode 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)