Patient weight is unknown.Device broke intra-operatively; device not considered implanted/explanted.Complainant part is not expected to be returned for manufacturer review/investigation.Without a lot number the device history records review could not be completed.The investigation could not be completed; no conclusion could be drawn, as no product was received.Device was used for treatment, not diagnosis.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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It was reported that during a lefort1/ bilateral sagittal split osteotomy (bsso) procedure, while using a ball point driver (bpd) screwdriver to insert a 1.5 mm self-drilling screw into the maxilla, the screw head separated from the stem of the screw.The stem of the screw remains intact in the patient.There was no apparent harm to the patient and no delay in the case.The head of the screw could not be found at the time.Concomitant device(s) reported: screwdriver blade (part 313.252, lot unknown, quantity 1); battery powered driver (part 05.000.008, lot unknown, quantity 1); sterile battery (part 05.000.007.01s, lot unknown, quantity 1).(b)(4).
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