(b)(4).At this time, the suspect device has not been returned for evaluation.Therefore, root cause has not been determined yet.However, biomed confirmed the issue.They dropped bias flow but mean airway pressure would not go below 9.The regulators were checked it is all within specs but on high end.He stated staff has been rotating needle valves past end stops and he has been putting them back on.A vyaire technical support suggested that they need to replace the needle valves and adjust regulators down within specs in middle.Vyaire medical will submit a supplemental report in accordance with 21 cfr section 803.56 if additional information becomes available.
|