Investigation summary: a device history report was conducted for lot number 8025668.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 february 6, 2018, 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; no leakage was observed under product specifications.Our engineers also 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.Based on our results, the root cause for this complaint could not be determined at the conclusion of our review.The reported tubing defective/damaged by customer was not confirmed after visual inspection and functional the sample provided.Based on the results obtained, the defect tubing defective; could not be identified or confirmed, and cause could not be determined.Sample was tested per leak at 20 psi of in and, 8 psi of out according qcge-011sp.No leakage was found.Although image received showed leakage, the actual unit involved in the reported complaint event, sample showed no tubing damaged or leakage.Currently, 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 changes are identified.If defects are observed, disposition of the product, root cause and corrective action are applied according to the quality control plan.
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