Patent ID: 11896767
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 10:
11. A ventilator, comprising:
a flow sensor;
a pressure sensor;
an exhalation valve;
a processor; and
a memory storing computer executable instructions that when executed by the processor cause the ventilator to perform a set of operations comprising:
measuring an exhalation flow using the flow sensor;
measuring an exhalation pressure using the pressure sensor;
determining a modeled exhalation flow based on an electrical current provided to the exhalation valve and the measured exhalation pressure;
evaluating a flow difference between the measured exhalation flow and the modeled exhalation flow;
generating a weighted average flow based on the measured exhalation flow, the modeled exhalation flow, and the flow difference; and
using the weighted average flow to control the ventilator to deliver positive pressure ventilation.