MAUDE Adverse Event Report: ALPHATEC SPINE, INC. SAFEOP 1.5 HEAD UNIT; STIMULATOR, ELECTRICAL, EVOKED RESPONSE

Model Number	AIX11901
Medical Device Problem Code	Incorrect, Inadequate or Imprecise Result or Readings (1535)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/09/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The neuromonitoring system has not returned for evaluation.Photographs were not provided.A review of device history records showed no manufacturing or processing related irregularities.Based on the information provided, the root cause could not be determined.Alphatec spine is submitting this report to comply with the fda regulations 21 cfr 803.Alphatec spine has made reasonable efforts to provide as much relevant information as available.Any field that is left blank was not known at the time of this submission.If additional information is provided, a supplemental report will be submitted.
Event or Problem Description
During a spinal procedure using intraoperative neuromonitoring, multiple electrode checks would not pass the impedance test.The harness and individual electrodes were replaced with no resolution.The patient was already under anesthesia.The surgeon elected to abort the case prior to incision.

• Brand Name: SAFEOP 1.5 HEAD UNIT
• Common Device Name: STIMULATOR, ELECTRICAL, EVOKED RESPONSE
• Manufacturer (Section D): ALPHATEC SPINE, INC.; 1950 camino vida roble; carlsbad CA 92008
• Manufacturer (Section G): ALPHATEC SPINE, INC.; 1950 camino vida roble; carlsbad CA 92008
• Manufacturer Contact: michael hendrickson ; 1950 camino vida roble; carlsbad, CA 92008 ; 7603566777
• MDR Report Key: 23978131
• Report Number: 2027467-2026-00001
• Device Sequence Number: 10608872
• Product Code: GWF
• UDI-Device Identifier: 00190376330723
• UDI-Public: (01)00190376330723
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: K182542
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 01/06/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Model Number: AIX11901
• Device Catalogue Number: AIX11901
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 12/10/2025
• Initial Report FDA Received Date: 01/06/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 10/05/2022
• 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
• Outcome Attributed to Adverse Event: Other
• Patient Sex: Unknown