(19)

(11)

EP 0 078 321 A1

(12)

(43) Date of publication: 11.05.1983 Bulletin 1983/19 (21) Application number: 82901942.0 (22) Date of filing: 13.05.1982

(51) International Patent Classification (IPC):  A61B 5/ 0476( . ) G06F 17/ 00( . ) A61B 5/ 0484( . ) (86) International application number: PCT/US1982/000633 (87) International publication number: WO 1982/003977 (25.11.1982 Gazette 1982/28)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 15.05.1981 US 19810263939 15.05.1981 US 19810264031 15.05.1981 US 19810264043 (60) Divisional application: 87104157.0 / 0241757 (71) Applicant: THE CHILDREN'S HOSPITAL MEDICAL CENTER Boston, MA 02115 (US)	(72) Inventors: DUFFY, Frank H. Brookline, MA 02146 (US) CULVER, Norman D. Spotswood, NJ 08884 (US) (74) Representative: Heidrich, Udo, Dr. jur., Dipl.-Phys., et al  Rechtsanwalt & Patentanwalt Dipl.-Phys. Dr. jur. U. HEIDRICH Franziskanerstrasse 30 D-81669 München D-81669 München (DE)