Investigation summary: a device history report was conducted for lot number 7327591.During our review no abnormalities related to this event were found during our monitoring of the manufacturing process.According to our records lot was manufactured december 3, 2017, and this is the only instance of a defective catheter occurring in this lot.According to the sampling plan applied for product performance, this lot was accepted and released, with no defects being noted during final assembly or in packaging visual inspections.Additionally the device that was returned was subjected to leakage testing; the leakage that was observed, was seen flowing out of a small cut in the extension tubing.Our engineers attempted to duplicate this event by testing the interaction between the extension tubing and the connected pinch clamp.After thirty iterations of this testing our engineers were unable to duplicate the reported failure mode.Unfortunately based on our results, the root cause for this complaint could not be determined at the conclusion of our review.Sample and slide clamp received were used to reproduce the reported defect.Pvc tubing was clamped 20 times without damages.Also, tubing was left 4 hours clamped and, no damage or cut was observed in the tubing, only stress mark.Slide clamp was reviewed and, no burr was observed.Product quality is evaluated during the manufacturing process with prescribed variable and attributes inspections.These inspections are performed by operators and/or process control technicians to ensure any gross process.Process fmea 4797 and p-eura rm5942 were reviewed and there are proper controls in place to detect product malfunctions.
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