(19)

(11)

EP 0 348 430 A1

(12)

(43) Date of publication: 03.01.1990 Bulletin 1990/01 (21) Application number: 88903000.0 (22) Date of filing: 29.01.1988

(51) International Patent Classification (IPC):  G06F 3/ 033( . ) G05G 9/ 047( . ) A63F 13/ 06( . ) G06K 11/ 06( . ) (86) International application number: PCT/US1988/000291 (87) International publication number: WO 1988/005942 (11.08.1988 Gazette 1988/18)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 04.02.1987 US 19870010851 15.01.1988 US 19880144266 (71) Applicant: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH Rochester, MN 55905 (US)	(72) Inventors: ROBB, Richard, A. Rochester, MN 55901 (US) ERICKSON, Bradley, J. Rochester, MN 55901 (US) (74) Representative: Orr, William McLean, et al  URQUHART-DYKES & LORD 5th Floor, Tower House Merrion Way Leeds West Yorkshire, LS2 8PA Leeds West Yorkshire, LS2 8PA (GB)