Additional information provided in d.10., h.3., h.6., and h.10.A review of the device history record traceable to the reported lot number indicates that the product was processed and released according to the product¿s acceptance criteria.A turbid fluid management system (fms) was returned and evaluated.The returned sample was visually inspected and build-up of surgical residue was observed in the drain bag and throughout the fms indicating re-use of a single-use device.Yellowish surgical fluid was inside the tubing.There was a slight bend in the tubing, however, based on the reused condition of the sample, this could have occurred post receipt of the sample.The affiliate stated that the product was not reprocessed or reused; however, the customer should be reminded the direction for use (dfu) states that alcon products are validated for single-use only and should not be reprocessed or reused.It has been found in lab testing that excessive use of any single-use product may contribute to functional breakdown.A calibrated console was used to test the sample and the fms cassette primed and tuned with the ultrasonic handpiece successfully and could achieve maximum vacuum.No system message was generated, no fluid or air leaks, and no cracks were observed on the connectors that would have contributed to the reported event.The irrigation and aspiration flow rates were measured and found to be within specifications.Fluid flowed from the balanced salt solution bottle to the irrigation and aspiration manifolds and continuously to the cassette housing.No occlusion or obstruction was observed during inspection and functional testing.While the pass all functional and performance requirements and functioned as intended during laboratory testing, surgical residue build-up was identified throughout the cassette device and tubing manifolds suggesting the cassette was reused.Based on the condition of the cassette, the root cause of the customer's cassette is related to customer reuse of a single-use device.As described, excessive use of any single-use product may contribute to functional breakdown.No action will be taken for this occurrence, as the root cause is related to customer reuse of the product.Quality assurance will continue to monitor customer complaints via the complaint review meetings, and will take action for any future occurrences as is deemed necessary.Consumables manufacturing has been made aware of this complaint.The manufacturer internal reference number is:(b)(4).
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