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EP 4 816 040 A1

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(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 25702604.7 (22) Date of filing: 24.01.2025

(51) International Patent Classification (IPC):  A61M 25/00(2006.01) B29C 65/14(2006.01) B29C 65/52(2006.01) A61M 39/12(2006.01) A61M 27/00(2006.01) B29C 65/48(2006.01) B29C 65/00(2006.01) (52) Cooperative Patent Classification (CPC): A61M 25/0014; A61M 27/00; A61M 39/12; B29C 66/5344; B29L 2031/7542; B29C 66/322; B29C 65/4845; B29C 65/1406; B29C 65/4825; B29C 65/4815; B29C 66/71; B29C 66/712; B29C 66/73152; B29C 66/1222; B29C 66/1224; B29C 65/1435; B29C 66/73365; B29C 66/73366   C-Sets: B29C 66/71, B29K 2021/003; B29C 66/71, B29K 2023/083; (86) International application number: PCT/GB2025/050130 (87) International publication number: WO 2025/158158 (31.07.2025 Gazette 2025/31)

(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 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: 25.01.2024 US 202463624956 P 12.03.2024 GB 202403565 (71) Applicant: ConvaTec Limited Deeside Industrial Park Deeside Flintshire CH5 2NU (GB)	(72) Inventors: ANDRA OV, Martin Deeside CH5 2NU (GB) CURILA, Vladimír Deeside CH5 2NU (GB) (74) Representative: Wilson Gunn  Centurion House 129 Deansgate Manchester M3 3WR Manchester M3 3WR (GB)