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Additional information: d9, g3, h3, h6.Complaint allegation is confirmed.One unpackaged ar-9597-10, serial/batch number (b)(6), was received for investigation.Visual inspection noted that the device was received with an ar-9676 stuck inside the shaft.Functional testing was not performed due to the cold-welded condition of the devices.The most likely cause for the reported failure can be attributed to misuse due to a force perpendicular to the drive shaft being applied while the device is spinning.This applied force creates an excess of friction and heat that ultimately has the potential to cause the device to seize from functioning as intended.Application of this force perpendicular to the drive shaft is not needed for the device to function, nor is it recommended that the user do this during normal clinical use.When used normally, this issue is unlikely to present itself, which suggests that the handling of the device has a large impact on whether or not it will seize.For this reason, the direct cause is considered to be misuse of the device.
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