(19)

(11)

EP 4 770 746 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24885101.6 (22) Date of filing: 24.10.2024

(51) International Patent Classification (IPC):  A61N 1/375(2006.01) A61N 1/05(2006.01) H04R 25/00(2006.01) A61N 1/36(2006.01) C08L 83/04(2006.01) A61F 2/18(2006.01) (52) Cooperative Patent Classification (CPC): C08L 83/04; H04R 2225/57; H04R 2225/67; H04R 25/606; H04R 25/609; A61N 1/36125; A61N 1/3752; A61N 1/3754; A61N 1/3758; A61N 1/36038; A61N 1/0541 (86) International application number: PCT/IB2024/060494 (87) International publication number: WO 2025/094005 (08.05.2025 Gazette 2025/19)

(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 MA MD TN (30) Priority: 31.10.2023 US 202363594684 P (71) Applicant: Cochlear Limited Sydney, NSW 2109 (AU)	(72) Inventor: FUNG, Wilson New South Wales 2109 (AU) (74) Representative: Reddie & Grose LLP  The White Chapel Building 10 Whitechapel High Street London E1 8QS London E1 8QS (GB)