MAUDE Adverse Event Report: TANDEM DIABETES CARE T:SLIM X2 INSULIN PUMP WITH INTEROPERABLE TECHNOLOGY (WITH T:CONNECT MOBILE APP); ALTERNATE CONTROLLER ENABLED INSULIN INFUSION PUMP

Model Number	1002717
Medical Device Problem Codes	Filling Problem (1233); Incorrect Measurement (1383)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	05/22/2025
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that a minimum fill notification occurred after the user filled the cartridge with 250 units of insulin during the load sequence.A new cartridge was loaded to resolve the issue.Customer¿s blood glucose level was 409 mg/dl.
Additional Manufacturer Narrative
No product was returned for evaluation.Should new relevant information become available, a supplemental report will be submitted.

• Brand Name: T:SLIM X2 INSULIN PUMP WITH INTEROPERABLE TECHNOLOGY (WITH T:CONNECT MOBILE APP)
• Common Device Name: ALTERNATE CONTROLLER ENABLED INSULIN INFUSION PUMP
• Manufacturer (Section D): TANDEM DIABETES CARE; 12400 high bluff drive; san diego CA 92130
• Manufacturer Contact: michael trier ; san diego, CA 92130 ; 8584011451
• MDR Report Key: 22092788
• Report Number: 3013756811-2025-101074
• Device Sequence Number: 6935523
• Product Code: QFG
• UDI-Device Identifier: 00850006613724
• UDI-Public: 00850006613724
• Combination Product (Y/N): N
• Initial Reporter State: NY
• Initial Reporter Country: US
• PMA/510(K) Number: K203234
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Y
• Reporter Type: Manufacturer
• Report Source: Consumer
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 05/27/2025

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Model Number: 1002717
• Device Catalogue Number: 1006377
• Device Lot Number: W1407702
• Was Device Available for Evaluation?: No
• Was the Report Sent to FDA?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 05/22/2025
• Initial Report FDA Received Date: 05/27/2025
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 05/01/2021
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Age: 59 YR
• Patient Sex: Female
• Patient Ethnicity: Non Hispanic