MAUDE Adverse Event Report: Senseonics Inc. Eversense Sensor; Eversense Continuous Glucose Monitor System

Model Number	103606-610
Medical Device Problem Code	Imprecision (1307)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/02/2026
Type of Reportable Event	Malfunction
Event or Problem Description
On (b)(6) 2026 , senseonics was made aware of an incident where the user reported sensor readings were different from their blood glucometer measurements.Based on the escalation analysis, sensor replacement was deemed necessary and the device was requested for further evaluation.
Additional Manufacturer Narrative
The manufacturer is currently performing an investigation and will provide the results with the supplemental report.

• Brand Name: Eversense Sensor
• Common Device Name: Eversense Continuous Glucose Monitor System
• Manufacturer (Section D): Senseonics Inc.; 20451 seneca meadows parkway; germantown 20876 -700
• Manufacturer (Section G): Senseonics Inc.; 20451 seneca meadows parkway; germantown 20876 -700
• Manufacturer Contact: vallikannu somasundaram ; 20451 seneca meadows parkway; germantown 20876--700
• MDR Report Key: 50105320
• Report Number: 3009862700-2026-02644
• Device Sequence Number: 10051553
• Product Code: SBA
• UDI-Device Identifier: 00817491024299
• UDI-Public: 00817491024299
• Combination Product (Y/N): Y
• Initial Reporter Country: US
• PMA/510(K) Number: P160048
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2026
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Consumer
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 10/01/2026

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
• Operator of Device: Lay User/Patient
• Device Expiration Date: 09/18/2026
• Device Model Number: 103606-610
• Device Catalogue Number: FG-7501-00-301
• Device Lot Number: 01F356S
• Was Device Available for Evaluation?: Yes
• Date Returned to Manufacturer: 07/28/2026
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/03/2026
• Supplement Date Received by Manufacturer: 10/01/2026; 10/01/2026
• Initial Report FDA Received Date: 07/31/2026
• Supplement Report FDA Received Date: 10/02/2026; 10/02/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Age: 56 YR
• Patient Sex: Female