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Investigation - evaluation: a review of the complaint history, functional test, device history record, documentation, instructions for use (ifu), trends, quality control and visual inspection of the returned device was conducted during the investigation.The device is shipped with an instruction for use (ifu) that describes the intended use, specific items are addressed such as: this product is intended for use by physicians trained and experienced in proper vascular access techniques.Standard techniques for the placement of vascular access sheaths, angiographic catheters and wire guides should be employed.All catheters and instruments used with this product should move freely through the valve and sheath.Separation of the sheath may result when the fit is tight.The visual inspection of the returned device reported one used sheath and dilator were returned for investigation.When visualizing the check-flo assembly, the hole appeared centered in the silicone disc and there were no signs of tearing.Two leak tests were performed on the device.First, the sheath tubing was occluded with hemostats and water was injected through the connecting tube assembly.No leakage was detected.A dilator was then fully inserted and removed from the sheath.A second leak test was performed and leakage was detected.A bubble of water formed at the center of the silicone disc.The complaint device was returned therefore, an investigation evaluation was performed.There is no evidence to suggest the product was not made to specifications.Review of device history record shows no nonconforming events which could contribute to this failure mode.It should be noted there were no other reported complaints for this lot number.Based on the information provided, a definitive root cause cannot be determined as to why hemostasis was not maintained after inserting and removing of the dilator.We will continue to monitor for similar complaints.Per the quality engineering risk assessment no further action is required.
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