We received a 30 cm nutriline twinflo catheter as a sample.The catheter tube has adhesive residues.At both lumen a non-vygon needle-free connection system was connected.Examination of the returned sample showed the green lumen was flushable without any problems, but the orange lumen demonstrated severe occlusions in the catheter tube.When flushing the catheter over the orange lumen, it was leaking near 17-18 cm from the distal, and the distal was completely blocked.During microscopic examination, a micro longitudinal tear (cut or pressure burst) became visible in this area.Based on the product incident report (pir), the customer used alcohol based chloraprep as a disinfectant.There is a statement in our product's ifu: "be aware that organic solvents such as alcohol or acetone may interact with catheter material and weaken it.Avoid any contact of the catheter tubing to alcohol containing disinfectants.This may irreversibly damage the catheter.A review of the batch history records for batch no.8137379 and 8178394 was performed, and no deviations were found.The batches conform to specifications and were released.Each catheter is flow and leak tested during production.The tensile force of the catheter components is randomly checked.Visual tests and incoming goods inspections are carried out with no exceptions found.There are three further complaints for the batch 8168372 but no further complaint for batch 8172398.There were seven further complaints regarding a leaking catheter on code 4g07125223 within the last three years.Corrective action: as the catheter worked well for 60 days (catheter is indicated for use up to 29 days) before the leakage occurred, we do not believe this defect is manufacturing related.Any manufacturing problems that would lead to a leak would be detected by the user when flushing the catheter.Therefore, no further corrective action will be initiated at this time.
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