Reason/Issue |
There have been reports of issues with the Graphical User Interface (GUI) & loss of primary ventilation. The GUI can become unresponsive to touch, but the ventilator continues to operate at existing settings, all real-time waveforms, pressure/volume measurements, alarm functions & the bezel keys remain active. However, users are unable to change ventilator settings/configuration of the display. Plus, under certain circumstances there is a loss of primary ventilation capabilities, in which the Backup Ventilation (BUV) design feature is activated. When BUV is initiated, high urgency audio & visual alarms are enunciated immediately & cannot be silenced. In some cases, the ventilator subsequently progressed to a ventilator inoperative condition, where the ventilator opens all valves to atmospheric pressure & room air, & ventilation ceases. High urgency audio/visual alarms are enunciated. There have been no reports of adverse health effects or death associated with the above situations. |