Complaint sample was not returned to nova and no serial or lot number information has been provided; therefore, an evaluation of the device could not be performed and manufacturing records could not be reviewed.The product catalog number was provided by nova's clinician for fda reporting purposes.Several attempts were made via phone and email; however, there has been no response.The cause(s) of the difficulty reported by the customer could not be determined.Complaint will be closed as 'no complaint sample returned to nova for evaluation'.If the complaint sample becomes available, this complaint will be reopened, and the respective evaluation performed.No corrective action required based on the above evaluation.Trends will be monitored for this or similar complaints.
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