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The cruciform screwdriver (part # 313.96 / lot # 3605372) was received at us cq.The distal tip of the screwdriver was damaged as one blade was severely bent in the direction of tightening, while another blade was severely bent in the direction of loosening.Due to this damage, the drive feature can no longer be utilized.The handle was mildly cracked, the material had begun to raise from the handle.The received condition was consistent with the complaint condition thus the complaint was confirmed.The overall complaint was confirmed for the received cruciform screwdriver.Although no definitive root-cause can be determined its possible the device experienced unintended forces leading to the tip deformation and the handle crack.Based on the direction the blades deformed, it seems heavy rotational force (over-torque) contributed to the complaint condition.There was no indication that a design or manufacturing issue contributed to the complaint.No design issues were observed during the document/specification review.Based on the investigation findings, it has been determined that no corrective and/or preventative action is proposed.Additional monitoring for any potential safety signals will be conducted through complaint trending and other post market safety surveillance activities.Device history lot: part: 313.960, lot: 3605372, manufacturing site: (b)(4), release to warehouse date: 12.Nov.2010.A manufacturing record evaluation was performed for the finished device lot number, and no non-conformance's were identified.Review of the device history record(s) showed that there were no issues during the manufacture of this product, and any sub-components, which would contribute to this complaint condition.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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