MAUDE Adverse Event Report: MEDTRONIC XOMED INC. NIM® 3.0 MAINFRAME; STIMULATOR, NERVE

Model Number	8253001
Medical Device Problem Code	False Negative Result (1225)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	09/13/2022
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
This regulatory report is being submitted due to retrospective review through capa 624392.Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
Event or Problem Description
It was reported that this system was unresponsive during a parotidectomy procedure.Stim was being delivered.Audio indicators alerted the user of the issue.User was unsure if it was a connection issue, reseated all connections with no resolution, was not intermittent, there was no response at all.Swapped console and interface box with no change.Adjusted threshold to 80, tapped on the muscle that was innervated and used stim probe, console shows that stim is delivering appropriate signal, passing electrode check.Replaced electrodes checking placement with no change.Area where electrodes are placed is not being irrigated, no paralyzing anesthetic is in use.The procedure was delayed for less than an hour and was aborted after patient was under for 30-40 minutes.No patient injury.

• Brand Name: NIM® 3.0 MAINFRAME
• Common Device Name: STIMULATOR, NERVE
• Manufacturer (Section D): MEDTRONIC XOMED INC.; 6743 southpoint dr n; jacksonville FL 32216
• Manufacturer (Section G): MEDTRONIC XOMED INC.; 6743 southpoint dr n; jacksonville FL 32216
• Manufacturer Contact: justin ellis ; 6743 southpoint drive north; jacksonville, FL 32216 ; 7635265677
• MDR Report Key: 21522577
• Report Number: 1045254-2025-00714
• Device Sequence Number: 15877123
• Product Code: ETN
• UDI-Device Identifier: 00613994499714
• UDI-Public: 00613994499714
• Combination Product (Y/N): N
• Initial Reporter State: OK
• Initial Reporter Country: US
• PMA/510(K) Number: K083124
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Nurse
• Type of Report: Initial
• Report Date (Section B): 03/05/2025

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: Health Professional
• Device Model Number: 8253001
• Device Catalogue Number: 8253001
• Device Lot Number: 205889520
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 09/13/2022
• Initial Report FDA Received Date: 03/05/2025
• Date Device Manufactured: 05/09/2012
• 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: Reuse
• Patient Sequence Number: 1
• Patient Sex: Unknown