The manufacturer received information alleging a patient became disconnected from a ventilator and now has a low level of consciousness.The reported event occurred on (b)(6) 2016.The following information is from the reporter of the event: the ventilator was being used non-invasively with a mask 24 hours per day.A review of the device's event log confirmed the device alarmed for a patient circuit disconnect for approximately 23 minutes before it was acknowledged.The caregiver went to the patient's room when another monitoring device that was in use began alarming.When the caregiver went to the patient's room, the patient was found to be in cardiac arrest.The patient was resuscitated, but now has a low level of consciousness.The ventilator was evaluated by the reporting facility and passed all testing, including alarm function.The reporting facility confirmed the device operates as intended and placed the device back into patient use.The ventilator will not be returned to the manufacturer for further evaluation.Based on this information, the manufacturer concludes the ventilator operated and alarmed as designed and that the event was caused by user error.
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