Patent ID: 11883604
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A medical ventilator system comprising:
a ventilator comprising a first environmental gas inlet, an inspiratory port, an expiratory port, and a blower, wherein the blower is located in a gas flow path between the first environmental gas inlet and the inspiratory port;
an oxygen regulator comprising an oxygen inlet, a second environmental gas inlet, a mixing valve, a plenum upstream of the mixing valve, a pressure sensor for measuring a pressure inside the plenum, and a mixed gas outlet, wherein the mixing valve combines oxygen from the oxygen inlet and gas from the second environmental gas inlet into a mixed gas provided to the mixed gas outlet; and
a fluidic coupling between the ventilator and the oxygen regulator for coupling the mixed gas outlet of the oxygen regulator to the first environmental gas inlet of the ventilator.