(19)

(11)

EP 4 121 129 A1

(12)

(43) Date of publication: 25.01.2023 Bulletin 2023/04 (21) Application number: 21714257.9 (22) Date of filing: 19.03.2021

(51) International Patent Classification (IPC):  A61L 15/42(2006.01) A61L 15/60(2006.01) A61L 15/48(2006.01) (52) Cooperative Patent Classification (CPC): A61L 15/48; A61L 15/42; A61L 15/60   C-Sets: A61L 15/60, C08L 1/286; (86) International application number: PCT/GB2021/050683 (87) International publication number: WO 2021/186188 (23.09.2021 Gazette 2021/38)

(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: 20.03.2020 GB 202004055 (71) Applicant: ConvaTec Limited Deeside, Flintshire CH5 2NU (GB)	(72) Inventors: PARSONS, David Deeside Flintshire CH5 2NU (GB) HARRIS, Genevieve E. Deeside Flintshire CH5 2NU (GB) HATHAWAY, Hollie J. Deeside Flintshire CH5 2NU (GB) (74) Representative: Wilson Gunn  Blackfriars House The Parsonage 5th Floor Manchester M3 2JA Manchester M3 2JA (GB)