MAUDE Adverse Event Report: MEDTRONIC XOMED INC. NIM® EMG - ENDOTRACHEAL TUBE; STIMULATOR, NERVE

Model Number	8229306
Medical Device Problem Code	Incorrect, Inadequate or Imprecise Result or Readings (1535)
Health Effect - Clinical Codes	Unintended Extubation (4564); No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/21/2023
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
This regulatory report is being submitted due to retrospective review through capa 624392.H3: product analysis found visually, there was no damage in the construction of the device.There was whitish-yellowish colored biol ogical residue on the outside diameter of the cuff balloon on the distal end of the device.Electrically, resistance of each lead shall be between 1.7 and 3.7 ohms and the actual measurements were 3.3 ohms (blue), 3.4 ohms (blue with clear tubing), 3.7 ohms (red), and 3.5 ohms (red with clear tubing) which all electrodes were in specification.Functionally, for further analysis, the device was connected to a nim system, and the electrode leads on the distal end of the device were submerged in saline to perform an electrode check and functional testing and the device passed the electrode check and there was no erratic feedback during functional testing.There was no intermittent behavior while using a stylet to manipulate the shape of the device.For additional analysis, a syringe was used to inject 20cc of air into the cuff and there were no issues during inflation or deflation.In the returned condition, there was no out of specification condition that was related to the complaint.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 during thyroidectomy procedure, when the doctor start to detect nerve, he found there was no waveform on nim when he use the probe to detect nerve.The doctor tried to check nim by patient simulator and confirmed the nim is normal.So, the doctor thought the problem is endotracheal tube.Finally, the doctor changed a new endotracheal tube to complete the surgery.Surgery delayed by about 5 minutes.No patient injury.

• Brand Name: NIM® EMG - ENDOTRACHEAL TUBE
• 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: 21557400
• Report Number: 1045254-2025-00794
• Device Sequence Number: 4527229
• Product Code: ETN
• UDI-Device Identifier: 00643169789524
• UDI-Public: 00643169789524
• Combination Product (Y/N): N
• Initial Reporter Country: TW
• PMA/510(K) Number: K925640
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,Company Representative,Distributor
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 03/10/2025

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 Expiration Date: 09/20/2026
• Device Model Number: 8229306
• Device Catalogue Number: 8229306
• Device Lot Number: 0225139261
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 06/07/2023
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/28/2023
• Initial Report FDA Received Date: 03/10/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 09/21/2022
• 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 Sex: Female