| 主权项 |
1. A ventilator system comprising:
a pressure generator configured to generate a pressurized flow of breathable gas for delivery to an airway of a subject; a delivery circuit configured to guide the pressurized flow of breathable gas from the pressure generator to the airway of the subject; a first exhaust valve in fluid communication with the delivery circuit at a first exhaust point, the first exhaust valve being configured to selectively exhaust gas from the delivery circuit at the first exhaust point; a second exhaust valve in fluid communication with the delivery circuit at a second exhaust point, the second exhaust valve being configured to selectively exhaust gas from the delivery circuit at the second exhaust point, and wherein the delivery circuit between the first exhaust point and the second exhaust point has a rebreathing storage capacity; and one or more processors configured to execute processing modules, the processing modules comprising:
a control module configured to control operation of the ventilator system in a first therapy mode or a second therapy mode; anda valve control module configured to control the first exhaust valve and the second exhaust valve to exhaust exhaled gas from the delivery circuit, wherein the valve control module is configured such that (i) during operation of the ventilator system in a first therapy mode, exhaled gas is exhausted from the delivery circuit primarily through the second exhaust valve, and (ii) during operation of the ventilator system in a second therapy mode, exhaled gas is exhausted from the delivery circuit primarily through the first exhaust valve, thereby increasing a CO2 rebreathing volume of the subject and the delivery circuit by the rebreathing storage capacity responsive to the ventilator system being operated in the second therapy mode. |
