MAUDE Adverse Event Report: DEXCOM, INC. DEXCOM G7 CONTINUOUS GLUCOSE MONITORING SYSTEM

Model Number	9500-161
Medical Device Problem Code	Wireless Communication Problem (3283)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/22/2024
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that signal loss occurred.Data was received but does not reflect full investigation window.The allegation and a probable cause could not be determined.No injury or medical intervention was reported.
Additional Manufacturer Narrative
(b)(4).

• Brand Name: DEXCOM G7 CONTINUOUS GLUCOSE MONITORING SYSTEM
• Common Device Name: CONTINUOUS GLUCOSE MONITOR
• Manufacturer (Section D): DEXCOM, INC.; 6340 sequence dr.; san diego CA 92121
• Manufacturer Contact: ashley spoto ; 6340 sequence dr.; san diego, CA 92121 ; 8582000200
• MDR Report Key: 21098451
• Report Number: 3004753838-2025-005609
• Device Sequence Number: 8721887
• Product Code: QBJ
• UDI-Device Identifier: 00386270003676
• UDI-Public: 00386270003676
• Combination Product (Y/N): Y
• Initial Reporter State: NY
• Initial Reporter Country: US
• PMA/510(K) Number: K213919
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• 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): 01/07/2025

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: 11/30/2025
• Device Model Number: 9500-161
• Device Catalogue Number: STE-AT-030
• Device Lot Number: 1824168004
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 12/23/2024
• Initial Report FDA Received Date: 01/07/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 06/01/2024
• 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: 49 YR
• Patient Sex: Male
• Patient Weight: 164 KG