(19)

(11)

EP 0 556 284 A1

(12)

(43) Date of publication: 25.08.1993 Bulletin 1993/34 (21) Application number: 92900026.0 (22) Date of filing: 04.11.1991

(51) International Patent Classification (IPC):  A61N 5/ 04( . ) A61N 1/ 40( . ) A61B 18/ 14( . ) (86) International application number: PCT/US1991/008182 (87) International publication number: WO 1992/007621 (14.05.1992 Gazette 1992/11)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 05.11.1990 US 19900609373 (71) Applicant: BSD MEDICAL CORPORATION Salt Lake City, Utah 84119 (US)	(72) Inventors: TURNER, Paul, F. North Salt Lake, UT 84054 (US) SCHAEFERMEYER, Theron, Neal North Salt Lake, UT 84054 (US) TUMEH, Amer, Mohammad Salt Lake City, UT 84106 (US) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 D-80538 München D-80538 München (DE)