(19)

(11)

EP 0 470 121 A1

(12)

(43) Date of publication: 12.02.1992 Bulletin 1992/07 (21) Application number: 90906281.0 (22) Date of filing: 06.04.1990

(51) International Patent Classification (IPC):  A61B 17/ 08( . ) A61F 2/ 02( . ) D05B 97/ 04( . ) (86) International application number: PCT/GB1990/000528 (87) International publication number: WO 1990/012912 (01.11.1990 Gazette 1990/25)

(84) Designated Contracting States: DE FR GB IT NL SE (30) Priority: 26.04.1989 GB 19890009482 (71) Applicant: Ellis, Julian Garth Nottingham NG4 4BE (GB)	(72) Inventor: Ellis, Julian Garth Nottingham NG4 4BE (GB) (74) Representative: Low, Peter John  Wilson, Gunn, M'Caw & Co., 41-51 Royal Exchange, Cross Street Manchester, M2 7BD Manchester, M2 7BD (GB)