(19)

(11)

EP 3 958 943 A1

(12)

(43) Date of publication: 02.03.2022 Bulletin 2022/09 (21) Application number: 20796296.0 (22) Date of filing: 20.04.2020

(51) International Patent Classification (IPC):  A61M 21/02(2006.01) A63B 24/00(2006.01) A61B 5/00(2006.01) (52) Cooperative Patent Classification (CPC): A61M 21/02; A61M 2230/63; A61M 2209/088; A61M 2021/0027; A61M 2210/086; A61M 2205/332; A61M 2210/083 (86) International application number: PCT/SE2020/050400 (87) International publication number: WO 2020/218961 (29.10.2020 Gazette 2020/44)

(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: 24.04.2019 SE 1930135 (71) Applicant: Unfors, Tomas 427 35 Billdal (SE)	(72) Inventor: Unfors, Tomas 427 35 Billdal (SE) (74) Representative: Westpatent AB  Almekärrsvägen 11 443 39 Lerum 443 39 Lerum (SE)