(19)

(11)

EP 2 677 971 A2

(12)

(88) Date of publication A3: 03.01.2013 (43) Date of publication: 01.01.2014 Bulletin 2014/01 (21) Application number: 12715153.8 (22) Date of filing: 20.02.2012

(51) International Patent Classification (IPC):  A61F 2/44(2006.01) (86) International application number: PCT/IB2012/050752 (87) International publication number: WO 2012/117312 (07.09.2012 Gazette 2012/36)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 21.02.2011 IT BO20110071 (71) Applicant: Maida, Giuseppe 44123 Ferrara (IT)	(72) Inventor: Maida, Giuseppe 44123 Ferrara (IT) (74) Representative: Dall'Olio, Christian et al INVENTION S.r.l. Via delle Armi, 1 40137 Bologna 40137 Bologna (IT)