(19)

(11)

EP 0 160 696 A1

(12)

(43) Date of publication: 13.11.1985 Bulletin 1985/46 (21) Application number: 84904278.0 (22) Date of filing: 08.11.1984

(51) International Patent Classification (IPC):  A61B 19/ 00( . ) (86) International application number: PCT/US1984/001818 (87) International publication number: WO 1985/002111 (23.05.1985 Gazette 1985/12)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 08.11.1983 US 19830549767 (71) Applicant: MEDICAL PHYSICS CORPORATION Kensington, MD 20895 (US)	(72) Inventors: SCHMADEL, Don Kensington, MD 20895 (US) CORNFELD, Edward Potomac, MD 20854 (US)