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Additional narrative: initial reporter is j&j company representative.Investigation summary the product was returned to depuy synthes for evaluation.The depuy synthes team conducted a visual inspection of the returned device.Visual analysis of the returned sample revealed that the torque limiter, 0.8 nm, with ao/asif quick coupling was found to have segments of brown foreign matter around the slid sleeve section.Functional issues are most likely due to this condition.A dimensional inspection for the torque limiter, 0.8 nm, with ao/asif quick coupling was unable to be performed due to complex geometry of the device.A functional test was performed, force was applied to slide the slid sleeve, but due to foreign matter in the area the device was not able to be used as intended.The complaint condition was able to be replicated.As part of depuy synthes quality process, all devices are manufactured, inspected, and released to approved specifications.The overall complaint was confirmed as the observed condition of the torque limiter, 0.8 nm, with ao/asif quick coupling would contribute to the complained device issue.There is no indication that a design or manufacturing issue has caused the complaint condition and hence the root cause cannot be determined.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.Drawing/specifications reviewed: no issues dimensional inspection: n/a device history part #: 511.776 synthes lot #: 5606 supplier lot #: 5606 release to warehouse date: 19 jan 2009 supplier: (b)(4).No ncr's generated during production.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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