Four opened phaco tips in wrenches, in blisters were received for the report.All four samples were visually inspected, sample #1, #3 and #4 were found to be conforming and sample #2 was found to be nonconforming.Tip of phaco was found to be bent for sample #2.There was wear on the threads, back of flange and on nut corners that was consistent with threading on a handpiece for all samples.A functional occlusion flow check was performed and all four samples were found to be conforming.A review of the device history record traceable to the reported lot number, indicates that the reported product was processed and released according to the reported product¿s acceptance criteria.The complaint evaluation confirms the phaco tip cannula is bent of sample #2.How and when the phaco tip became bent cannot be determined from this evaluation.The most likely cause of a bent phaco tip cannula is from improper handling of the product.The returned samples #1, 3 and 4 were found to be conforming for functional testing associated with the report of flow obstruction; therefore, a report of error message of flow obstruction was not confirmed and a root cause cannot be determined for the complaint as described by the customer.Sample 1, 3, and 4 were found conforming and sample 2 no specification action was taken with regard to this complaint was taken because the root cause for the complaint issue cannot be determined from this evaluation.All phaco tips are 100% visually inspected by trained operators using 30x magnification during the manufacturing process.Any nonconformance, such as the phaco tip cannula bent exhibited on the returned opened sample, is removed from the lot and scrapped.Complaints are reviewed and monitored at regular intervals for any significant adverse trends.No adverse trends have been observed associated with the reported product and event.No further actions are required.The manufacturer internal reference number is: (b)(4).
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