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	06/09/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The user reported differences between sg and bg readings.Based on a review of the sensor data available in the data management system (dms), the observed discrepancies occurred during the initial post-insertion period ("early wear time"), which is described in the user guide and supported by clinical performance data as an expected phase of sensor stabilization.The user was educated about this adjustment period and advised to continue using the system, entering any additional calibrations as prompted by the system.The user was informed that the system is expected to improve following stabilization and to call back if the issue persists for further troubleshooting.As per the data management system (dms) review, the system remained in active use with up-to-date information.
Event or Problem Description
Senseonics was made aware of an incident where user reported an event where the cgm showed results that are different from blood glucometer measurements.No injury or medical intervention was reported.

• Brand Name: EVERSENSE SENSOR
• Common Device Name: EVERSENSE CONTINUOUS GLUCOSE MONITOR SYSTEM
• Manufacturer (Section D): SENSEONICS INC.; 20451 seneca meadows parkway; germantown 20876 7005
• Manufacturer (Section G): SENSEONICS INC.; 20451 seneca meadows parkway; germantown 20876 7005
• Manufacturer Contact: vallikannu somasundaram ; 20451 seneca meadows parkway; germantown 20876-7005
• MDR Report Key: 25679201
• Report Number: 3009862700-2026-02171
• Device Sequence Number: 19994583
• 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
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 07/01/2026

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 Model Number: 103606-610
• Device Catalogue Number: FG-7501-00-301
• Device Lot Number: 04G106S
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/09/2026
• Initial Report FDA Received Date: 07/01/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/19/2026
• 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: 68 YR
• Patient Sex: Male