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EP 4 051 390 A1

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(43) Date of publication: 07.09.2022 Bulletin 2022/36 (21) Application number: 20882343.5 (22) Date of filing: 03.11.2020

(51) International Patent Classification (IPC):  A62B 27/00(2006.01) G01N 15/06(2006.01) G01N 1/22(2006.01) (52) Cooperative Patent Classification (CPC): G01N 15/06; G01N 2015/0693; G01N 2015/0046 (86) International application number: PCT/US2020/058635 (87) International publication number: WO 2021/087495 (06.05.2021 Gazette 2021/18)

(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: 03.11.2019 US 201962929888 P 03.11.2019 US 201962929893 P 25.08.2020 US 202017001994 16.10.2020 US 202017072892 (71) Applicant: Zeptive, Inc. Burlington, Massachusetts 01803 (US)

(72) Inventors: BISTANY, Loucinda Methuen, Massachusetts 01844 (US) HARGETT, William Chelmsford, Massachusetts 01824 (US) MILT, Stephen Winchester, Massachusetts 01890 (US) (74) Representative: Pintz, Zsofia  Fillun & Decketts Ltd. Hova House 1 Hova Villas Brighton & Hove BN3 3DH Brighton & Hove BN3 3DH (GB)