SYSTEMS AND METHODS FOR VENTILATION WITH UNKNOWN EXHALATION FLOW

摘要

Systems and methods for novel ventilation that allows the patient to trigger or initiate the delivery of a breath are provided. Further, systems and methods for triggering ventilation when exhalation flow is unknown or unreliable by the ventilator are provided.

主权项

1. A method for ventilating a patient with a ventilator, comprising:
delivering a fixed base flow; monitoring an exhalation flow, an exhalation pressure, and an exhalation auxiliary pressure during ventilation of the patient with the ventilator to determine a monitored exhalation flow, a monitored exhalation pressure, and a monitored exhalation auxiliary pressure; detecting a first trigger condition based at least on the monitored exhalation flow; triggering inspiration in response to the detecting of the first trigger condition; determining an absence of the monitored exhalation flow; and in response to the determining:
ceasing to utilize the first trigger condition based at least on the exhalation flow;estimating the exhalation flow based on the monitored exhalation pressure and the monitored exhalation auxiliary pressure to determine an estimated exhalation flow;detecting a second trigger condition based at least on the estimated exhalation flow; andtriggering inspiration during the ventilation in response to the detecting of the second trigger condition.