Investigation ¿ evaluation: the stent was not returned for analysis and no photographs were provided.A physical investigation could not be performed.Without the part number, lot number or the returned device the complaint cannot be confirmed and a specific root cause cannot be determined.The lot number was not provided therefore a review of the device history record was unable to be performed.If the device and lot number information are received a review of complaint history for related complaints will be reviewed.Per the quality engineering risk assessment; no further action is required.Cook medical has notified the appropriate personnel and the will continue to monitor this device via the complaints database for similar complaints.
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