Investigation - evaluation: a review of complaint history, quality control, drawing, manufacturing instructions, specifications and instructions for use was conducted during the investigation.The product will not be returned for the investigation.If the device becomes available complaint will be reopened and investigation will be performed at that time.There was no evidence to suggest the device was manufactured out of specification, nonconforming in house, or nonconforming in the field.Since none of the devices were returned by the user, the root cause is inconclusive.One potential cause of failure could be an interference fit between the cannula and the catheter.The device is currently designed to be compatible with the catheter according to drawing and the diameters of each are quality control checked.It was concluded that no further risk reduction is required at this time.Quality control ensures 100% verification for the material type and french size.In addition, the surface is checked to be clean and free of damage.The surface of the catheter is checked to be free of excessive dents and foreign matter, and the catheter is checked to ensure the flexible stiffener will pass through completely.An instruction for use (ifu) is sent with every device that outlines the proper instructions for using this product.We will notify the appropriate personnel and continue to monitor for similar complaints.Per the quality engineering risk assessment no further action is required.
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