Investigation: no investigation method could be applied, because the product was not available.Therefore an investigation of the product was not possible.Batch history review: due to the fact that no lot number was provided, a review of the device history records for the complained device is not possible.Root cause cannot be finally concluded.Therefore the root cause specific risk cannot be identified.Based on the available information, no risk could be identified conclusion/preventive measures: unfortunately due to a lack of data and without the product we cannot determine the exact root cause for the mentioned deviation.According to the quality standard, a production error and a material defect can most probably be excluded.If further investigations are required, the product should be provided for examination.Based upon the investigation results, a capa is not required.
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