The reported boxed incisor plus intended for use in treatment, has not been returned for evaluation.Without the reported product a visual evaluation cannot be performed and the customers complaint cannot be confirmed.From the information provided, fragments of the shaver came free from the blade and were left within the patient.An exact root cause cannot be determined with confidence; however, factors that could have contributed to the reported event include: excessive side-loading during use.The instruction for use were reviewed and were found to outline precautionary statements and instructions in regards to the use of the device to avoid damage or non-functionality.There were no indications that would suggest that the device did not meet product specifications upon release into distribution.Further investigation is not warranted at this time.The boxed incisor plus blades are manufactured and intended as externally communicating devices and are not approved for implantation.Therefore, long term implantation data is not available as it is not specified as an implantable alloy.It remains unknown if corrosion, micro-motion and/or migration of the retained fragments are likely.The impact to the patient is the retained non-implantable fragment of the externally communicating device, possible local irritation and/or discomfort, and additional radiological imaging/exposure cannot be completely ruled out.
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