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Manufacturing review: the dhr has 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 results: one truguide coaxial needle was returned, noted as a component for a biopsy mission kit.The mission biopsy needle and remaining kit components were not returned.A visual inspection was performed.The coaxial needle was retuned broken in two segments.Segment one consists of the broken coaxial measuring approximately 4.3cm in length.Segment two consist of the coaxial hub with the cannula broken just distal to the hub.Substantial deformation and damage was noted to the cannula on both segments.One section shows the cannula shaft flared open while another section shows the cannula shaft pinched off with what appears to be evidence of tool damage.No other anomalies were noted.A dimensional evaluation was no possible due to the condition of the return sample.Based on the available sample information, the investigation is confirmed as reported for a coaxial needle break.Per the reported event details, the hub of the needle broke off during a tibial bone mass biopsy.Reportedly, the physician attempted to remove the needle and a small piece broke off, with the remaining needle still in the tibia.The current instructions for use (ifu) states; "the coaxial biopsy needle guide is intended for use as a guiding needle in obtaining core biopsy samples from soft tissue such as liver, kidney, spleen, lymph nodes and various soft tissue lesions.Contraindications: not intended for use in bone.Precautions: 1.This product should be used by a physician who is completely familiar with the indications, contraindications, limitations, typical findings and possible side effects of core needle biopsy, in particular those relating to the specific organ being biopsied." based upon available information and sample evaluation results, the root cause for the reported event appears to be use-related.Labeling review: a review of the product instructions for use (ifu) procedural instructions, indications, warnings, precautions, cautions, possible complications and contraindications showed that the product labeling is adequate.
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