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

Model Number	102208-500
Medical Device Problem Code	Imprecision (1307)
Health Effect - Clinical Code	Hypoglycemia (1912)
Date of Event	03/02/2022
Type of Reportable Event	Serious Injury
Event or Problem Description
On (b)(6) 2022, senseonics was made aware of an incident where user experienced hypoglycemia due to inaccuracies in sensor readings.
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, there was temporary mismatch between the sensor readings and the fingerstick measurement due to temporary deviation in the sensor performance after insertion.The hypo alert was asserted incorrectly at the time of the reported event due to the temporary difference between the sensor reading and the fingerstick measurement.After the event, once the noise in the optical channel stabilized, the system displayed better agreement between the sensor readings and fingerstick measurements.User wasn't symptomatic, didn't seek medical treatment and didn't treat himself as user didn't experience a hypoglycemic event.User was advised to let the hcp know of these kind of events.D2.Product code updated to qhj.H6.Investigation findings updated to 213.H6.Investigation conclusions updated to 67.

• 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: 13971972
• Report Number: 3009862700-2022-00050
• Device Sequence Number: 14571969
• Product Code: QHJ
• UDI-Device Identifier: 00817491021441
• UDI-Public: 00817491021441
• 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): 03/05/2022
• 2 Devices were Involved in the Event: 1 2

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: 04/05/2022
• Device Model Number: 102208-500
• Device Catalogue Number: FG-3300-01-001
• Device Lot Number: 123461
• 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: 03/05/2022
• Supplement Date Received by Manufacturer: 03/05/2022
• Initial Report FDA Received Date: 03/31/2022
• Supplement Report FDA Received Date: 04/19/2022
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 04/05/2021
• 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: Initial
• Patient Sequence Number: 1
• Patient Age: 59 YR
• Patient Sex: Male