(b)(4).Evaluation summary: the device was returned and the reported separation was confirmed.Based on visual analysis of the returned device, there is no indication of a product quality issue with respect to manufacture, design, or labeling.A conclusive cause for the separated shaft could not be determined.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint handling database revealed no other similar incidents reported from this lot.Based on the reviewed information, there is no indication the issue was caused by, or related to the design, manufacture or labeling of the device.(b)(4).
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