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(11)

EP 4 770 586 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 23776767.8 (22) Date of filing: 31.08.2023

(51) International Patent Classification (IPC):  A61F 5/451(2006.01) A61F 5/455(2006.01) A61F 5/453(2006.01) (52) Cooperative Patent Classification (CPC): A61F 5/451; A61F 5/453; A61F 5/455 (86) International application number: PCT/US2023/031740 (87) International publication number: WO 2025/048822 (06.03.2025 Gazette 2025/10)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (71) Applicant: Purewick Corporation Covington, Georgia 30014-1498 (US)	(72) Inventors: NEWTON, Camille Rose Bonsall, California 92003 (US) NEWTON, Raymond J. Bonsall, California 92003 (US) (74) Representative: Studio Torta S.p.A.  Via Viotti, 9 10121 Torino 10121 Torino (IT)