Patent ID: 6588423
Filing Date: 2003-07-08
Classification: A61B,A61M

Abstract:
A method for triggering ventilatory support from a ventilatory apparatus connected to a patient's respiratory system to assist respiration of said patient, comprising:sensing myoelectrical activity of a respiratory-related muscle of the patient, to thereby detect respiratory effort of said patient; in response to the sensed muscle myoelectrical activity, calculating a real-time myoelectrical signal representative of a level or change in respiratory effort; and activating/deactivating ventilatory support in relation to the myoelectrical signal to synchronise, in real-time, activating/deactivating of the ventilatory support to the patient with respiratory effort of said patient, said activating/deactivating of ventilatory support comprising: comparing an amplitude, integral, derivative or combination thereof related to the myoelectrical signal to a given threshold; and activating ventilatory support when said amplitude, integral, derivative or combination thereof is higher than said given threshold.