MAUDE Adverse Event Report: INTEGRA LIFESCIENCES CORPORATION OH/USA MAYFIELD COMPOSITE SERIES SKULL CLAMP

Catalog Number	A3059
Medical Device Problem Code	Unstable (1667)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/01/2025
Type of Reportable Event	Malfunction
Event or Problem Description
A facility reported that during "c2-7 posterior cervical laminectomy and fusion" procedure, the mayfield composite series skull clamp (a3059) unlocked while flipping the patient to prone position.The procedure was completed as per usual, but the team had to be cautious and vigilant on patient positioning throughout the procedure.There was no patient injury or surgical delay.
Additional Manufacturer Narrative
The mayfield composite series skull clamp (a3059) was returned for evaluation: device history record (dhr) - the dhr was reviewed and shows no abnormalities related to the reported failure.Failure analysis - evaluation of the returned unit shows that the unit has up and down movement in the lock, and the index knob is cracked which allows for movement while in the locked position.To resolve the issue, the disk ratchet, index knob, retaining ring, screw, nut, washer and wave spring will be replaced and general maintenance and cleaning will be performed.Root cause - the complaint is confirmed via inspection of the unit, and the probable root cause is rough or improper handling of the unit.No further corrective action is required based on the acceptability of risk and no adverse trends identified.This will be monitored and trended going forward.At present, we consider this complaint to be closed.

• Brand Name: MAYFIELD COMPOSITE SERIES SKULL CLAMP
• Common Device Name: MAYFIELD
• Manufacturer (Section D): INTEGRA LIFESCIENCES CORPORATION OH/USA; 4900 charlemar drive; 4900 charlemar drive; cincinnati OH 45227
• Manufacturer (Section G): INTEGRA LIFESCIENCES CORPORATION OH/USA; 4900 charlemar drive; cincinnati OH 45227
• Manufacturer Contact: vivian nelson ; 1100 campus drive; princeton, NJ 08540 ; 6099362319
• MDR Report Key: 23943833
• Report Number: 3004608878-2025-00243
• Device Sequence Number: 10683638
• Product Code: HBL
• UDI-Device Identifier: 10381780253792
• UDI-Public: 10381780253792
• Combination Product (Y/N): N
• PMA/510(K) Number: K142238
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: User Facility,Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 01/02/2026

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 Catalogue Number: A3059
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 12/05/2025
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 12/08/2025
• Initial Report FDA Received Date: 01/02/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 05/11/2022
• 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: Unknown
• Patient Sequence Number: 1
• Patient Sex: Unknown