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One opened trocar assembly and 2 ophthalmic trocar handle blade assemblies, in a plastic tray, in a bag were received for the report of could not insert trocar.Samples were visually inspected and found to be conforming, no damage was observed to the trocar cannula.Surgical debris was observed inside the inner diameter of the cannula.The sample was then dimensionally inspected for cannula inner diameter and were found conforming.Blade sample 1 and 3 - tip of trocar blade was observed to be bent and has a damaged cutting edge.Blade sample 2 - trocar blade was observed to be bent and the tip of the blade was also broken off.A dimensional ear width measurement was performed and all three samples were found conforming.No lot number was identified with this complaint; therefore, a device history record review could not be conducted.The returned sample cannula were found to be visually and dimensionally conforming, therefore a product fit issue as described in the complaint was not confirmed and a root cause cannot be determined for the complaint as described by the customer.However, the damage to the returned samples is consistent with damage that can occur when the blade contacts a hard surface such as the protective cap, improper handling, or contact with another instrument during surgery or set-up.The damage seen on the returned complaint samples could have contributed to the customers reported issue of dull blades the exact root cause for this complaint is unknown, therefore, specific action with regards to this complaint cannot be taken.All trocar blades are 100% inspected.Any nonconformance, such as the damaged tip and cutting edges, are removed from the lot and scrapped.The manufacturer internal reference number is: (b)(4).
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