MAUDE Adverse Event Report: INTEGRA LIFESCIENCES CORPORATION OH/USA MAYFIELD 2000 SKULL CLAMP; SKULL CLAMPS AND HEADREST SYSTEMS

Catalog Number	A2000
Medical Device Problem Code	Device Slipped (1584)
Health Effect - Clinical Code	Laceration(s) (1946)
Date of Event	10/10/2025
Type of Reportable Event	Malfunction
Event or Problem Description
A facility reported that the pressure bolt of the mayfield 2000 skull clamp (a2000) lost pressure while positioning the patient.At some point while he was securing the device, he stated "something is wrong" and stated that the device is not tightening and the patient's head felt loose, so he asked for assistance to hold the patient's head.They further stated that the device was not tightening properly, and the patient's head slipped causing a laceration to the patient's scalp.The surgeon applied 5 staples after the patient's head was cleaned up.
Additional Manufacturer Narrative
An investigation has been initiated based on the reported information.Upon completion of the investigation, a follow-up report will be submitted.
Additional Manufacturer Narrative
Updated fields: d4, d9, g3, g6, h2, h3, h6, h11.The a2000 mayfield skull clamp was not returned; therefore, an evaluation of the device could not be performed.Lot number information has been provided; therefore, device history record (dhr) was reviewed, and no anomalies were found.The definite root cause cannot be identified as the device was not returned.However, based on the reported complaint, the probable root cause is improper or suboptimal placement of the skull clamp on the patient.If additional relevant information becomes available in the future, this complaint will be reopened, and the respective evaluation performed.Trends will be monitored for this and similar issues.At present, we consider this complaint to be closed.
Event or Problem Description
N/a.

• Brand Name: MAYFIELD 2000 SKULL CLAMP
• Common Device Name: SKULL CLAMPS AND HEADREST SYSTEMS
• 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: 23490588
• Report Number: 3004608878-2025-00209
• Device Sequence Number: 4632514
• Product Code: HBL
• UDI-Device Identifier: 10381780253655
• UDI-Public: 10381780253655
• Combination Product (Y/N): N
• PMA/510(K) Number: K932807
• 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,Followup
• Report Date (Section B): 01/08/2026

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?: No
• Operator of Device: Health Professional
• Device Catalogue Number: A2000
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 10/13/2025
• Supplement Date Received by Manufacturer: 12/15/2025
• Initial Report FDA Received Date: 11/06/2025
• Supplement Report FDA Received Date: 01/08/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 11/11/2021
• 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
• Outcome Attributed to Adverse Event: Other
• Patient Sex: Unknown