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

Model Number	102812-67A
Medical Device Problem Code	Failure to Sense (1559)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/04/2022
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The manufacturer is currently performing an investigation and will provide the results with the supplemental report.
Event or Problem Description
On 04 february 2022, senseonics was made aware of an incident where user received an early sensor replacement alert resulting in an early sensor removal.
Additional Manufacturer Narrative
D2: product code corrected to qhj.
Additional Manufacturer Narrative
The sensor was tested in-house, and the review of qc revealed a loss of chemical performance, which confirms the complaint.The investigation shows the system correctly disabled the sensor due to performance failure (low overall glucose signals leading to msp) and the system's self-test functions are working normally.Msp failures were investigated in (b)(4), which determined the root cause of these failures to be sensor's hydrogel oxidation.This sensor has the same failure mode and additional investigation is not necessary for this complaint.As part of resolution, the rma was authorized to offer the user a sensor replacement.H3.Device evaluated by manufacturer? yes.H6.Investigation findings updated to 3231.H6.Investigation conclusions updated to 4307.

• Brand Name: EVERSENSE SENSOR
• 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: 14269045
• Report Number: 3009862700-2022-00065
• Device Sequence Number: 19993383
• Product Code: QHJ
• UDI-Device Identifier: 00817491022523
• UDI-Public: 00817491022523
• 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: 2022
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Consumer
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 04/04/2022

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: 04/22/2022
• Device Model Number: 102812-67A
• Device Catalogue Number: FG-4202-00-301
• Device Lot Number: WP08497
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 04/26/2022
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/04/2022
• Supplement Date Received by Manufacturer: 04/04/2022; 04/04/2022
• Initial Report FDA Received Date: 05/03/2022
• Supplement Report FDA Received Date: 05/05/2022; 07/01/2022
• 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: 76 YR
• Patient Sex: Male