(b)(4).Evaluation summary: post market vigilance (pmv) led an evaluation of one device opened by the account.This evaluation was based on a technical review of all data received from the site, a pmv review of manufacturing records, a pmv review of complaint trends, an engineering review of the product, and an evaluation of the returned device.The instrument was partially applied with eleven remaining clips.It was observed that the cartridge was disengaged form the body of the device.Due to the observed damage to the instrument, functional evaluation of the instrument could not be performed.During an engineering investigation, the cartridge was reattached to the body, with the c-clip inserted through the slot in the body nose and the knob in place.Once the trigger was cycled, the device loaded and properly formed some clips and then the knob and cartridge separated from the body instrument.Based on the evaluation findings, the root cause for the reported condition can be related to the c-clip being out of specification.Subsequently, the complaint data did display an increased trend for the reported condition.The instrument disengagement condition has been identified as a trend and a vendor notification has been initiated to prevent this condition from recurring.Should new information become available, the file will be re-opened and reassessed at that time.
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