A doctor reported that a large amount of air was mixed from the infusion line during a procedure.The product was replaced and procedure completed with no patient harm.A product sample has been requested, however, it has not been received for evaluation at the manufacturing site.
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Additional information provided.The lot complaint history was reviewed, this is the eighth complaint for the finish goods lot; however, the first for this issue for this lot.The device history record shows the product was released per specifications.The used returned sample was visually inspected and surgical residue and balance salted solution (bss) crystal was in the fluid path of the manifolds.The sample was fully tested on a calibrated console.The sample could prime, tune, and pass intraocular pressure calibration successfully.The infusion pressure, irrigation, and aspiration rate were all measured at multiple set points throughout the console range and met specifications.Fluid was able to flow from the bss bottle to the drain bag.Toggling the infusion and the fluid/air exchange (f/ax) modes, fluid and air flowed from the cassette to the infusion line continuously without any bubble in various settings in all sub modes.No message code appeared on the screen during functional testing.The root cause of the customer's complaint could not be established; the returned sample met specifications.After a thorough investigation of this complaint, it has been determined that this sample met specifications; therefore, no corrective action is required at this time.Quality assurance has reviewed this complaint and will continue to monitor data for evidence of adverse trending and take further action, as appropriate.The manufacturer internal reference number is: (b)(4).
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