(19)

(11)

EP 0 951 315 A1

(12)

(43) Date of publication: 27.10.1999 Bulletin 1999/43 (21) Application number: 98951608.0 (22) Date of filing: 04.11.1998

(51) International Patent Classification (IPC):  A62B 9/ 06( . ) (86) International application number: PCT/GB1998/003310 (87) International publication number: WO 1999/022818 (14.05.1999 Gazette 1999/19)

(84) Designated Contracting States: AT DE DK ES FR GB GR IE IT NL PT SE (30) Priority: 04.11.1997 GB 19970023161 (71) Applicant: Hay, Brian Douglas Penarth, Vale of Glamorgan CF64 2QW (GB)	(72) Inventors: HAY, Brian, Douglas Penarth Vale of Glamorgan CF64 2QW (GB) HARDING, Richard, J. Welshpool Powys SY21 9NZ (GB) (74) Representative: Gibson, Stewart Harry  URQUHART-DYKES & LORD, Three Trinity Court, 21-27 Newport Road Cardiff CF2 1AA Cardiff CF2 1AA (GB)