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

Catalog Number A1059

Device Problem Unstable (1667)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Type  malfunction  

Manufacturer Narrative

An investigation has been initiated based on the reported information.Upon completion of the investigation, a follow-up report will be submitted.

Event Description

A facility reported that the torque screw of the mayfield modified skull clamp (a1059) came unscrewed.It is probable that this occurred during a surgery, and a doro device was used to complete the surgery.Additional information received indicates that there was no incident, and the surgeon managed to screw/ tighten the torque screw at the end.The device was kept for another scheduled surgery on the same day.There was no consequence for the patient.

Manufacturer Narrative

The mayfield skull clamp (a1059) was returned for evaluation: device history record (dhr) - the dhr was reviewed and shows no abnormalities related to the reported failure.Failure analysis - the investigation of the returned device was unable to duplicate the reported issue, however, unrelated to the issue, the unit had a sticking swivel lock assembly and a residue buildup.Also, some worn off internal parts needed to be replaced along with the damaged index knob to adjust the swivel lock assembly.As a result, the internal parts to adjust the unit according to the manufacturer were replaced and the swivel lock assembly was cleaned.General maintenance and cleaning were performed, and after completing the reassembly the skull clamp was subjected to a successful function test.Root cause - evaluation found no device deficiencies that would have contributed to the reported complaint as no issues were noted with the torque screw.Probable root cause of the reported complaint is improper or suboptimal placement of the skull clamp on the patient.No further investigation 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 MODIFIED SKULL CLAMP
• Type of Device: SKULL CLAMPS AND HEADREST SYSTEMS
• Manufacturer (Section D): INTEGRA LIFESCIENCES CORPORATION OH/USA; 4900 charlemar drive; 4900 charlemar drive; cincinnati OH
• Manufacturer (Section G): INTEGRA LIFESCIENCES CORPORATION OH/USA; 4900 charlemar drive; cincinnati OH
• Manufacturer Contact: vivian nelson ; 1100 campus drive; princeton, NJ ; 6099362319
• MDR Report Key: 18341168
• MDR Text Key: 331051224
• Report Number: 3004608878-2023-00235
• Device Sequence Number: 1
• Product Code: HBL
• UDI-Device Identifier: 10381780253457
• UDI-Public: 10381780253457
• Combination Product (y/n): N
• PMA/PMN Number: PRE-AMEND
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Foreign,User Facility
• Reporter Occupation: Biomedical Engineer
• Type of Report: Initial,Followup
• Report Date: 02/01/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 12/15/2023
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Catalogue Number: A1059
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 01/30/2024
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 07/15/2020
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Unknown
• Patient Sequence Number: 1