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There was no known reported patient involvement associated with the complained event.It is unknown when device malfunctioned.Device is an instrument and is not implanted/explanted.The subject device has been received and the product evaluation is in progress.No conclusion can be drawn.A review of the device history records has been requested and is currently pending completion.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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It was reported that during setup for a procedure the scrub tech discovered that the matrix head application tool was broken.The internal piece on the distal working end had somehow snapped off and was rolling around in the tray.Fortunately, another instrument was available and was used in the procedure.There was no patient or procedure involvement, the malfunction was discovered prior to the procedure beginning.This is report 1 of 1 for complaint (b)(4).
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Depuy synthes is submitting this report pursuant to the provisions of 21 cfr, part 803.This report may be based on information which depuy synthes has not been able to investigate or verify prior to the required reporting date.This report does not reflect a conclusion by fda, depuy synthes or its employees that the report constitutes an admission that the device, depuy synthes, or its employees caused or contributed to the potential event described in this report.Dhr review was completed part # 03.632.037 , synthes lot # 6603324 , supplier lot # 6603324 , release to warehouse date: 03oct2011 , supplier: (b)(4), no ncr's were 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.Customer quality conducted an investigation of the returned device.The polyaxial head placement tool (03.632.037) is used in the matrix degenerative and deformity spine systems.The tool is used to retrieve a polyaxial head from an implant module and place it over a matrix bone screw.The technique guides state that, to ensure the polyaxial head is securely attached to the bone screw, the user is to gently lift up on the placement tool and angulate the polyaxial head.In order to remove the instrument from the polyaxial head the button on the proximal end of the device can be pressed.The returned instrument was examined and the complaint condition was able to be confirmed as the blocker was found to be broken from the outer shaft and was returned.Further examination showed evidence of laser welding both the distal portion of the outer shaft and the blocker.The complaint condition was unable to be replicated due to post-manufacturing damage.No definitive root cause was able to be determined.The blocker is only laser welded to half of the outer shaft body, making it vulnerable to breakage in the area of the laser weld; as such the failure mode is consistent with rough handling.Relevant drawings for the returned instrument were reviewed: top-level, outer shaft w/ overmold and blocker.The design, materials and finishing processes were found to be appropriate for the intended use of these devices.The design, materials and finishing processes were found to be appropriate for the intended use of these devices.No dimensional analysis was possible due to post-manufacturing damage.A device history review, including material and hardness reviews, was performed for the returned instrument¿s lot number and no mrrs, ncrs or complaint-related issues were identified with the lot number which may have contributed to the complaint condition.Based on the investigation findings, it has been determined that no corrective and/or preventative action is proposed.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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