Manufacturing review: the device history records have been reviewed and this lot met all release criteria.There was nothing found to indicate there was a manufacturing related cause for this event.Investigation summary: one maxcore biopsy needle was returned for evaluation.The investigation is confirmed for a bent needle, as the sample notch bend was found to be out of specification.The investigation is also confirmed for a dull needle, as the tip appeared blunted under magnification.The investigation is inconclusive for the alleged tip detachment, as there was no clear detachment found during investigation and no detached fragment was returned.Per the evaluation results, the distal tip of the needle was identified to be dull and no portion of the needle was found to be detached.The user most likely identified the dulled needle tip as a detachment.The sample notch was also identified to be bent throughout the length.Therefore, the needle most likely experienced some force on the distal tip which contributed to the dulling and bending of the needle.Additionally, patient and/or procedural factors could have contributed to both the alleged and identified issues.All maxcore needles are visually inspected before and after assembly at manufacturing.Therefore, it is unlikely that a manufacturing related issue contributed to the reported issue.However, the definitive root cause is unknown.Labeling review: directions for use: bard® max-core® biopsy instrument preparation: before using, inspect the needle for damaged point, bent shaft or other imperfections that would prevent proper function.If the needle is damaged or bent, do not use.Using aseptic technique, remove the instrument from its package.To remove the protective needle sheath and yellow guard, you must energize (cock) instrument.
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