(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).It is indicated that the device is not returning for evaluation; therefore, a failure analysis of the complaint device could not be completed.A review of the job traveler for this product could not be performed and the historical data for the reported lot could not be reviewed because the product was not returned for evaluation and the lot number was not reported.A conclusive cause for the reported difficulties could not be determined.Based on the information reviewed, there is no indication the issue was caused by, or related to the design, manufacture or labeling of the device.
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