(b)(4).The customer returned a single 3-lumen catheter for evaluation.Although the catheter appeared to have been cleaned, evidence of use was observed.Visual examination of the catheter body, catheter juncture hub and extension lines did not reveal any defects or anomalies.Evidence of use (dried blood) was observed in the proximal skive hole, on the proximal luer hub and on the catheter body.The catheter body length and outer diameter were measured and were found to be within specification.Each of the 3 extension lines were flushed with water to functionally test the catheter.Dried blood was observed exiting the catheter body when flushing the proximal extension line but all of the extension lines functioned as expected.A lab inventory 0.035" guide wire was able to pass through the distal extension line with minimal resistance.A device history record review was performed on the catheter and no relevant manufacturing issues were identified.The instructions-for-use (ifu) provided with this kit give specific instructions for maintaining cat heter patency.The ifu states "establish and maintain catheter patency by: flushing intermittently via syringe with heparinized saline or preservative-free 0.9% sodium chloride; continuous drip; positive pressure device note: neutral as well as positive displacement valve systems have also been shown to help prevent occlusion; properly cleanse all valves with an appropriate antiseptic before being accessed; the sash or sas method of flushing will help eliminate occlusions due to incompatible solutions: saline, administer drug, saline, heparin (if used)".The customer report of a blocked catheter could not be confirmed through testing of the returned sample.All three of the catheter extension lines were flushed with water and functioned as expected.The catheter met all other relevant functional, visual and dimensional testing.A device history record was performed on the catheter and no relevant manufacturing issues were identified.Based on the condition of the returned sample, no problem was found with this sample.Teleflex will continue to monitor and trend for reports of this nature.
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