MAUDE Adverse Event Report: SENSEONICS INC. EVERSENSE TRANSMITTER; EVERSENSE CONTINUOUS GLUCOSE MONITOR SYSTEM

Model Number	102208-620
Medical Device Problem Code	Imprecision (1307)
Health Effect - Clinical Code	Hypoglycemia (1912)
Date of Event	02/09/2023
Type of Reportable Event	Serious Injury
Event or Problem Description
On (b)(6) 2023, senseonics was made aware of an adverse event where the user received a false hypoglycemia alert due to a sensor inaccuracy.
Additional Manufacturer Narrative
The manufacturer is currently performing an investigation and will provide the results with the supplemental report.
Additional Manufacturer Narrative
Based on the investigation analysis, the reported event could not be confirmed as there was no corresponding calibration entered by the user.However, it was observed that the system displayed a temporary mismatch between the sensor readings and fingerstick measurements around the time of the incident as it was only a few days after the insertion, when the insertion site was still healing, and the sensor was likely still stabilizing after insertion.Once the sensor stabilized after insertion, the system began performing within expectations, and there was better accuracy between the sensor readings and fingerstick measurements.The user did not require medical attention and didn't need to self-resolve the event as the blood glucose (bg) was in normal range.Per dms, the user is currently using the system with up-to-date information.H3.Device evaluated by manufacturer? yes.H6.Investigation findings updated to 114.H6.Investigation conclusions updated to 4315.

• Brand Name: EVERSENSE TRANSMITTER
• Common Device Name: EVERSENSE CONTINUOUS GLUCOSE MONITOR SYSTEM
• Manufacturer (Section D): SENSEONICS INC.; 20451 seneca meadows parkway; germantown MD 20875 7005
• Manufacturer (Section G): SENSEONICS INC.; 20451 seneca meadows parkway; germantown MD 20875 7005
• Manufacturer Contact: vallikannu somasundaram ; 20451 seneca meadows parkway; germantown, MD 20875-7005
• MDR Report Key: 16463956
• Report Number: 3009862700-2023-00055
• Device Sequence Number: 2316096
• Product Code: QHJ
• UDI-Device Identifier: 00817491022936
• UDI-Public: 817491022936
• Combination Product (Y/N): Y
• Initial Reporter Country: US
• PMA/510(K) Number: P160048
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Consumer
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 02/09/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Lay User/Patient
• Device Expiration Date: 03/07/2023
• Device Model Number: 102208-620
• Device Catalogue Number: FG-5902-01-001
• Device Lot Number: 129039
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 02/09/2023
• Supplement Date Received by Manufacturer: 02/09/2023
• Initial Report FDA Received Date: 03/01/2023
• Supplement Report FDA Received Date: 04/03/2023
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 03/07/2022
• 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: Initial
• Patient Sequence Number: 1
• Patient Age: 65 YR
• Patient Sex: Female