It was reported that there was an issue with bm012r - tc halsey needle holder serr 130mm.According to the complaint description, the tip of the tungsten carbide broke off in patient.This occurred during a hand procedure, and the piece was retrieved successfully.An additional medical intervention was required.Additional information was not available.The adverse event is filed under aag reference (b)(4).
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Investigation results: investigator carried out the pictorial documentation visually and microscopically.The needle holder is in a worn condition, one tungsten carbide inlay is broken, the fragment is not present for examination.The fracture surface of shows no abnormalities like blowholes of foreign particle inclusions.Due to the small dimension/diameter of the device, a detailed fracture surface analysis is difficult.Due to that circumstance there are no clear hints regarding arrestlines (hints for fatigue fracture) or clearly signs of a forced fracture.Device history records: due to the fact, that no lot number was provided, a review of the device history records for the complained device is not possible.The current failure rate is within the risk analysis and therefore acceptable; severity was 4(5) and probability was 1(5).Explation and rationale: the cause of the breakage may be damage caused by a fall of the product.The tungsten carbide inlays have the property of being very brittle, which is why they are more sensitive to such forces.Conclusion/preventive measures: based upon the above mentioned investigation results, a definitive root cause for the reported issue could not be established.Based upon the investigation results, a capa is not necessary.
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