(19)

(11)

EP 0 031 810 A1

(12)

(43) Date of publication: 15.07.1981 Bulletin 1981/28 (21) Application number: 79901289.0 (22) Date of filing: 07.03.1979

(51) International Patent Classification (IPC):  A61B 6/ 14( . ) A61B 6/ 00( . ) (86) International application number: PCT/US1979/000139 (87) International publication number: WO 1980/001961 (18.09.1980 Gazette 1980/21)

(84) Designated Contracting States: FR (71) Applicant: RINN CORPORATION Elgin, IL 60120 (US)	(72) Inventor: NORMAN, Royal, L. Omaha, NB 68144 (US)