The manufacturer became aware that a user alleges while using a bi-level continuous positive airway pressure (bipap) device, the user developed water condensation in his tubing which he aspirated into his lungs.The user went to the hospital and was admitted on (b)(6) 2020 and was discharged home on (b)(6) 2020.The manufacturer's investigation is on-going.Upon completion of the investigation, a follow up report will be filed.
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The manufacturer received the bipap device and associated heated humidifier and accessories for investigation.There were no operational issues noted, and the devices passed all testing.The manufacturer was unable to reproduce the condition of excessive condensation (rainout) in the patient circuit.Patient data shows that the heated tubing was not enabled for 15 days from set up.When the tubing was enabled on 8/21/2020, it was only set to #1 of 5 incremental settings.Setting the heated tubing setting at a higher number would have been significantly reduced the rainout.Also noted, oxygen was bled into the mask at 4 lpm using a bubble humidifier which added additional humidity.A room humidifier was also in use at that time which contributed to the rainout.The use of heated tubing when properly configured, is intended to reduce the occurrence of rainout.The occurrence of rainout is typically a result of the humidification not being properly configured for the environmental conditions in which the humidifier is being used.The dreamstation humidifier user manual advises users to position the cpap with humidifier lower than the sleeping position and on a firm, flat, level surface.There was no permanent harm or injury reported.Based on the available information, no further action is necessary.
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