SYSTEMS AND METHODS FOR VENTILATION IN PROPORTION TO PATIENT EFFORT
First Claim
1. A ventilation system, comprising:
- a processor communicably coupled to a computer readable medium, wherein the computer readable medium includes instructions executable by the processor to;
receive a measured pressure value;
receive a net flow value;
calculate a patient effort value based on a relationship between patient effort, the measured pressure value and the net flow value;
calculate a gas delivery metric, wherein the gas delivery metric varies as a function of the patient effort value; and
cause a gas to be delivered consistent with the gas delivery metric.
2 Assignments
0 Petitions
Accused Products
Abstract
Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a ventilation system is disclosed that includes a computer readable medium including instructions executable by a processor to receive a measured pressure value and a net flow value. A patient effort value is calculated based on a relationship between patient effort, the measured pressure value and the net flow value. The instructions are further executable to calculate a gas delivery metric that varies as a function of the patient effort value. Gas is then caused to be delivered consistent with the gas delivery metric.
242 Citations
26 Claims
-
1. A ventilation system, comprising:
a processor communicably coupled to a computer readable medium, wherein the computer readable medium includes instructions executable by the processor to; receive a measured pressure value; receive a net flow value; calculate a patient effort value based on a relationship between patient effort, the measured pressure value and the net flow value; calculate a gas delivery metric, wherein the gas delivery metric varies as a function of the patient effort value; and cause a gas to be delivered consistent with the gas delivery metric. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
16. A method for respiratory support, the method comprising:
-
measuring a pressure and providing a measured pressure; measuring an inlet flow and an outlet flow, and providing a measured net flow; using a relationship between a first value related to the measured pressure, a second value related to the measured net flow and a third value related to patient effort to calculate an estimate of patient effort from the measured pressure and measured net flow; and supplying a gas in proportion to the estimate of patient effort. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A ventilation system, the system comprising:
-
a gas inlet; a gas outlet; a tube coupling the gas inlet and the gas outlet; a pressure sensor, wherein the pressure sensor is operable to provide a measured pressure value indicating a pressure in the tube; a first flow sensor, wherein the first flow sensor is operable to provide an inlet flow value indicating a flow associated with the gas inlet; a second flow sensor, wherein the second flow sensor is operable to provide an outlet flow value indicating a flow associated with the gas outlet; and a processor communicably coupled to a computer readable medium, wherein the computer readable medium includes instructions executable by the processor to; receive a measured pressure value; receive a net flow value; calculate a patient effort value based on a relationship between patient effort, the measured pressure value and the net flow value; calculate a gas delivery metric that varies as a first function of the patient effort value; determine an inhalation phase based on the patient effort value; and cause a gas to be delivered consistent with the gas delivery metric.
-
Specification