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(11)

EP 4 337 271 A1

(12)

(43) Date of publication: 20.03.2024 Bulletin 2024/12 (21) Application number: 22728655.6 (22) Date of filing: 11.05.2022

(51) International Patent Classification (IPC):  A61L 24/00(2006.01) A61L 28/00(2006.01) A61L 24/04(2006.01) B32B 27/40(2006.01) (52) Cooperative Patent Classification (CPC): A61L 24/043; A61L 28/0015; A61L 28/0069; A61L 28/0049; B32B 27/40; B32B 27/08; B32B 27/32; B32B 27/34; B32B 27/306; B32B 2535/00   C-Sets: A61L 28/0015, C08L 75/04; A61L 28/0069, C08L 1/26; A61L 28/0069, C08L 83/04; A61L 24/043, C08L 1/26; A61L 24/043, C08L 83/04; (86) International application number: PCT/GB2022/051196 (87) International publication number: WO 2022/238697 (17.11.2022 Gazette 2022/46)

(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: 12.05.2021 GB 202106745 (71) Applicant: WELLAND MEDICAL LIMITED CrawleyWest Sussex RH10 9AS (GB)	(72) Inventors: BATCHELOR, Luke Harry Crawley West Sussex RH10 9AS (GB) MAHDI, Duale Abdirahman Mohamed Crawley West Sussex RH10 9AS (GB) (74) Representative: Lock, Graham James et al Fry Heath & Spence LLP Unit A, Faraday CourtFaraday RoadCrawley, West Sussex RH10 9PU Unit A, Faraday CourtFaraday RoadCrawley, West Sussex RH10 9PU (GB)