(19)

(11)

EP 0 830 174 A1

(12)

(43) Date of publication: 25.03.1998 Bulletin 1998/13 (21) Application number: 96914386.0 (22) Date of filing: 15.05.1996

(51) International Patent Classification (IPC):  A61N 1/ 30( . ) (86) International application number: PCT/IT1996/000098 (87) International publication number: WO 1996/036393 (21.11.1996 Gazette 1996/51)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV SI (30) Priority: 18.05.1995 IT 1995PA00015 (71) Applicants: Bonfiglio, Giuseppe 90144 Palermo (IT) Bianchetti, Carmelo 90145 Palermo (IT)	(72) Inventors: Bonfiglio, Giuseppe 90144 Palermo (IT) Bianchetti, Carmelo 90145 Palermo (IT) (74) Representative: Fiammenghi-Domenighetti, Delfina, et al  Fiammenghi-Fiammenghi Via Quattro Fontane 31 00184 Roma 00184 Roma (IT)