(19)

(11)

EP 0 659 097 A1

(12)

(43) Date of publication: 28.06.1995 Bulletin 1995/26 (21) Application number: 94908831.0 (22) Date of filing: 07.09.1993

(51) International Patent Classification (IPC):  A61M 25/ 00( . ) A61M 25/ 04( . ) A61M 1/ 14( . ) A61M 29/ 00( . ) (86) International application number: PCT/GB1993/001890 (87) International publication number: WO 1994/005363 (17.03.1994 Gazette 1994/07)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 08.09.1992 GB 19920018994 (71) Applicant: KING, Toby St. John Cambridge CB1 4US (GB)	(72) Inventor: KING, Toby St. John Cambridge CB1 4US (GB) (74) Representative: Flint, Adam  Gill Jennings & Every Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)