VENTILATOR WITH INTEGRATED COUGH-ASSIST

摘要

A ventilator with an integrated cough assist for use with a patient circuit in fluid communication with a patient connection of a patient, and operable in a ventilation mode and in a cough-assist mode. The ventilator includes a user input for switching operation from ventilation mode to cough-assist mode without disconnecting the ventilator from the patient, and a controller operable in response to the user input and controlling operation of the ventilator in cough-assist mode to provide for at least one cough assist to the patient having an insufflation phase followed by an exsufflation phase. A cough-assist valve in a first state for the insufflation phase communicates a positive pressure to the ventilator connection and in a second state for the exsufflation phase communicates a negative pressure to the ventilator connection.

主权项

1. A ventilator with an integrated cough assist for use with a patient circuit in fluid communication with a patient connection of a patient, the ventilator being operable in a ventilation mode and in a cough-assist mode, the ventilator comprising:
a ventilator connection to which the patient circuit is connectable for fluid communication therewith; a ventilator portion directing a flow of ventilation air to the ventilator connection for delivery to the patient in the ventilation mode; a user input for selectively switching operation of the ventilator from ventilation mode to cough-assist mode without disconnecting the ventilator from the patient; a controller operable in response to the user input for switching the ventilator from operation in the ventilation mode to operation in the cough-assist mode, and controlling operation of the ventilator in cough-assist mode to provide for at least one cough assist to the patient having an insufflation phase followed by an exsufflation phase; and a cough-assist valve which is in a first state for the insufflation phase of the cough assist and then moved to a second state for the exsufflation phase of the cough assist, when the cough-assist valve is in the first state for the insufflation phase of the cough assist, the cough-assist valve communicates a positive pressure to the ventilator connection, and when the cough-assist valve is in the second state for the exsufflation phase of the cough assist, the cough-assist valve communicates a negative pressure to the ventilator connection.