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 lot number was provided; therefore, device history record review could not be completed.A product sample was received for evaluation.Visual and functional testing were performed.One sample was with its original label inside a ziploc bag.The sample was received with the tube cut.The sample was visually inspected with a 12 inches distance under normal conditions of illumination.During the visual inspection, it was seen that filter was broken, therefore the cap was missing.The root cause was unable to be determined.As a preventive action manufacturing personnel were notified as an awareness of the failure mode reported by the customer.
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