The associated device was returned and evaluated.The visual inspection of the returned device shows the threads have broken off the end and was not returned.A review of the manufacturing records did not reveal any manufacturing or material abnormalities that could have caused or contributed to the reported incident.Our investigation did not determine a specific cause of the failure; however the device shows significant signs of use, it was manufactured in 2010.We recommend that all re-usable instruments be routinely inspected for wear/damage and replaced as necessary.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.This investigation could not verify or identify any evidence of product contribution to the reported problem.Based on this investigation, the need for corrective action is not indicated.Should additional information be received, the complaint will be reopened.
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