This mdr was generated under protocol (b)(4), as a result of warning letter cms# (b)(4).(udi) is unknown.No product information has been provided to date.510k is unknown.No information has been provided to date.No lot number was provided; therefore, device history record review could not be completed.One sample returned in used condition and without its original packaging.A product sample was received for evaluation.Visual and functional testing were performed.One sample was received in used conditions without its original packaging.The sample was visually inspected with a 12 to 24 inches distance under normal conditions of illumination.During the visual inspection, excessive solvent was found in the tube.During the functional testing, the sample failed the blow through test.The root cause is related to the manufacturing process of failing to preform an occlusion test on the product.As a preventative updated the visual aid to add the layout and the steps of the bonding of male connector to the gas line, this to ensure that production personnel know the steps and order of the operations.
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