(b)(4).According to the information provided, the device will not be returned for evaluation.The customer complaint indicates that a patient with this device developed an infection during the procedure.The duration of implantation is unknown, as is the device's lot number.Sterilization records from the past 2 years show no indication that validated parameters were not met for runs used to sterilize the product.There is no evidence that a nonconformity occurred during manufacturing or sterilization processing.There is no evidence to suggest the product was not manufactured to specification.Due to the device not being returned and the lot number being unavailable, the device could not be inspected and the specific sterilization run could not be reviewed for nonconformity.Based on a review of other sterilization runs, there is no evidence that an error occurred during sterilization that would cause this complaint.The root cause is unknown.No further action will be taken.
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