(b)(4).It is unknown if the device sample is available for evaluation at the time of this report.A visual, functional, and dimensional inspection of the product involved in the complaint could not be conducted since the product was not returned.The device history record of batch number (b)(4) has been reviewed and no issues or discrepancies were found which could potentially related to this complaint.The dhr shows that the product was assembled & inspected according to our specifications.No corrective action can be established at this moment since the product sample is not available for evaluation.Physical sample is necessary in order to confirm the failure mode.Customer complaint cannot be confirmed based only on the information provided, to perform an investigation and determine the source of defect reported it is necessary to evaluate the sample involved on this complaint.If the device sample becomes available at a later date this complaint will be updated.
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(b)(4).The sample was returned for evaluation.A visual exam was performed and it was observed that there was medicine residue inside the jar.Without removing the medicine residue from the nebulizer jar, the sample was placed in the nebulizer fixture and no mist was created.The medicine residue was then removed from the nebulizer jar, and it was tested according and found to be within specification.No issues were found than could lead to the condition reported by the customer.Based on the investigation performed, the reported complaint was confirmed.It was found that when the nebulizer was tested with medicine residue inside the jar, no mist was created.After the nebulizer was cleaned and the residue was removed, the device performed within specification and no issues were detected.It was determined that the root cause of the issue was user related.
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