(19)

(11)

EP 4 816 019 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24898795.0 (22) Date of filing: 27.11.2024

(51) International Patent Classification (IPC):  A61M 5/172(2006.01) A61M 5/142(2006.01) A61B 5/00(2006.01) A61M 5/168(2006.01) A61B 5/145(2006.01) (52) Cooperative Patent Classification (CPC): A61B 5/14532; A61B 5/4839; A61M 2005/14208; A61M 5/1723; A61M 2230/201; G16H 20/17; G16H 40/63; G16H 50/70 (86) International application number: PCT/US2024/057828 (87) International publication number: WO 2025/117799 (05.06.2025 Gazette 2025/23)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 27.11.2023 US 202363602997 P (71) Applicant: Tandem Diabetes Care, Inc. San Diego, CA 92130 (US)	(72) Inventor: MERZ, Christian San Diego, California 92130 (US) (74) Representative: HGF  HGF Limited 4th Floor, 1 City Square Leeds LS1 2ES Leeds LS1 2ES (GB)