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(11)

EP 4 770 692 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 25784943.0 (22) Date of filing: 10.09.2025

(51) International Patent Classification (IPC):  A61L 33/00(2006.01) A61L 33/02(2006.01) (52) Cooperative Patent Classification (CPC): A61L 33/022; A61L 33/0005 (86) International application number: PCT/EP2025/075767 (87) International publication number: WO 2026/057638 (19.03.2026 Gazette 2026/12)

(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: GE KH LA MA MD TN (30) Priority: 12.09.2024 SE 2450900 (71) Applicant: Bactiguard AB 146 21 Tullinge (SE)	(72) Inventors: SÖDERVALL, Billy 285 31 MARKARYD (SE) SANCHEZ, Javier 163 43 SPÅNGA (SE) (74) Representative: Ström & Gulliksson AB  Box 5275 102 46 Stockholm 102 46 Stockholm (SE)