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(11)

EP 4 096 491 A1

(12)

(43) Date of publication: 07.12.2022 Bulletin 2022/49 (21) Application number: 21707369.1 (22) Date of filing: 29.01.2021

(51) International Patent Classification (IPC):  A61B 1/00(2006.01) B33Y 30/00(2015.01) A61B 1/015(2006.01) B29C 64/20(2017.01) A61B 1/005(2006.01) (52) Cooperative Patent Classification (CPC): A61B 1/00087; A61B 1/00133; B33Y 30/00; A61B 1/005; A61B 1/00091; A61B 1/015; B22F 12/53; B22F 12/58; B22F 12/55; Y02P 10/25 (86) International application number: PCT/IB2021/050721 (87) International publication number: WO 2021/152530 (05.08.2021 Gazette 2021/31)

(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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 31.01.2020 IT 202000001927 (71) Applicants: D'Eufemia, Donato 55100 Lucca (IT) Giusti, Simone 54100 Massa (IT)	(72) Inventor: ALDUINI, Pietro 55100 Lucca (IT) (74) Representative: Firmati, Leonardo  IXNEA S.r.l. Via Traversa Fiorentina, 6 59100 Prato 59100 Prato (IT)