(b)(4).It has been communicated that the device and/or lot information is not available for evaluation.Without the device and/or lot information it is not possible for codman to conduct a proper investigation.If at some point the device and/or lot information does become available, this complaint will be re-opened, evaluated and a follow up report will be filed.Trends will be monitored for this and similar complaints.At the present time this complaint is considered closed.
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(b)(4).Upon completion of the investigation it was noted that the valve was visually inspected it was noted that the cam mechanism is dislodged.Therefore; the cam position/programming and pressure test could not be determined.The valve was hydrated.The valve was flushed, the valve passed the test no occlusion was noted.The valve was leak tested, no leaks were noted.The catheters were irrigated, no occlusions noted.The valve was reflux tested.The valve failed the test.The valve was dried.The valve was dismantled and was examined under microscope at appropriate magnification: a crack and a scratch mark were noted in the valve casing, damage was also noted on the cam mechanism.This is probably due to the valve receiving some form of impact.The cam magnets were controlled.The magnets passed.The lot history record was reviewed for completeness during the release process to inventory.At that time based on the fact that no discrepancies were noted for the products being accepted, they were released to stock on the 10th october 2005.The root causes for the dislodged cam mechanism is due to the valve receiving some form of impact.Based on the results of this investigation no further action is required.Trends will be monitored for this and similar complaints.At the present time this complaint is closed.
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