(b)(4).Manufacturer narrative: the device was returned to conmed for evaluation.Visual inspection found the device was broken off at the tip.This is a technique dependent device and the most likely cause of this failure is user related.A review of the manufacturing documents verified the device was produced per current and approved procedures and material specifications.Non-conformances regarding the product's identity, quality, safety, effectiveness or performance were not identified during manufacture.A two-year review of complaint history revealed one similar complaint for this product family and failure mode.In that same time frame, 8,983 units where ship and sold worldwide, making the occurrence rate of this failure 0.022 percent.A risk analysis was performed and found this failure mode and occurrence level to be acceptable and consistent with current risk documents.The instructions for use advise the user of the following.Inspect cannula prior to use to ensure they are in good physical conditions.Use carefully to ensure the cannula is not bent or collapsed when inserting the device.Avoid damaging seals and excessive leakage that they should not use devices larger than the specified cannula diameter.This issue will continue to be monitored through the complaint system to assure patient safety.
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