Patent ID: 7255103
Filing Date: 2007-08-14
Classification: A61M

Abstract:
1. A method for setting back up support ventilation for a patient comprising the steps of: delivering pressure support ventilation to a patient during inspiratory and expiratory portions of a breathing cycle of the patient; detecting a recurrent respiratory event in a cycle of the patient's respiration; setting a timing threshold for controlling the delivery of pressure support ventilation subsequent to the recurrent respiratory event and in an absence of a detection of a subsequent recurrent respiratory event; controlling a delivery of pressure support according to the timing threshold in the absence of a detection of a recurrent respiratory event subsequent to a detected recurrent respiratory event; wherein the step of setting a timing threshold, said timing threshold is chosen to deviate from a normal expected respiration timing for the patient in a manner that promotes patient initiated synchronization of the pressure support ventilation but permits back-up ventilation in the event of an apnea.