(19)

(11)

EP 4 363 723 A1

(12)

(43) Date of publication: 08.05.2024 Bulletin 2024/19 (21) Application number: 22833880.2 (22) Date of filing: 09.06.2022

(51) International Patent Classification (IPC):  F04B 43/12(2006.01) F04B 43/00(2006.01) A61M 5/142(2006.01) F04C 5/00(2006.01) (52) Cooperative Patent Classification (CPC): F04B 43/1253; F04B 43/1284; F04B 43/0009; F04B 2205/00; F04B 49/065 (86) International application number: PCT/US2022/032771 (87) International publication number: WO 2023/278116 (05.01.2023 Gazette 2023/01)

(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: 30.06.2021 US 202163216725 P (71) Applicant: NxStage Medical, Inc. Lawrence, MA 01843 (US)	(72) Inventors: JAMES, Jerome Waltham, Massachusetts 02451 (US) DIONE, Douglas Waltham, Massachusetts 02451 (US) (74) Representative: Freischem & Partner Patentanwälte mbB  Salierring 47-53 50677 Köln 50677 Köln (DE)