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

Model Number	A2000
Medical Device Problem Code	Device Slipped (1584)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Type of Reportable Event	Malfunction
Event or Problem Description
This is 4 of 6 reports linked to mfg report numbers: 3004608878-2022-00082, 3004608878-2022-00083, 3004608878-2022-00084, 3004608878-2022-00086, 3004608878-2022-00087.A facility reported that they were having issues with their new mayfield 2000 skull clamps (a2000) slipping during surgery even though they are locked.Additionally, they stated that there is a mechanism (customer describe as "washers") that loosens over time, and the locking mechanism does not function properly.There was no patient injury or surgical delay.
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
The mayfield 2000 skull clamp (a2000) 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 showed that the reported complaint was confirmed from the evaluation.Unit received with the lock still able to move after the unit is locked down, the hex bushing was worn and needed to be replaced.Additionally, the adjustment and lock rings on the clamp had been loosened and required readjustment to specification.General cleaning and maintenance performed.All worn components replaced with new parts, adjustment and lock rings readjusted.Root cause: complaint confirmed via inspection of the unit.Unit received with the lock still able to move after the unit is locked down, the hex bushing was worn and needed to be replaced.Additionally, the adjustment and lock rings on the clamp had been loosened and required readjustment to specification, probable root cause includes improper adjustment/loosening of the rings.No further investigation required based on the acceptability of risk and no adverse trends identified.This will be monitored and trended going forward.
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
• 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: 14319092
• Report Number: 3004608878-2022-00085
• Device Sequence Number: 20151259
• 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: Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Nurse
• Type of Report: Initial,Followup
• Report Date (Section B): 06/22/2022

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 Model Number: A2000
• Device Catalogue Number: A2000
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 04/14/2022
• Supplement Date Received by Manufacturer: 06/09/2022
• Initial Report FDA Received Date: 05/07/2022
• Supplement Report FDA Received Date: 06/22/2022
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 10/30/2019
• 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