SYSTEMS AND METHODS FOR DETERMINING PATIENT EFFORT AND/OR RESPIRATORY PARAMETERS IN A VENTILATION SYSTEM
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Abstract
Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a method for respiratory support is described that includes measuring a pressure, providing a measured pressure, measuring an inlet flow and an outlet flow, and providing a measured net flow. 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 is used to provide a prediction of patient effort. An interim value is updated based at least in part on the prediction of the patient effort.
20 Citations
51 Claims
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1-26. -26. (canceled)
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27. A method for respiratory support, the method comprising:
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measuring a pressure; measuring an inlet flow and an outlet flow; based on the inlet flow and the outlet flow, calculating a net flow; predicting patient effort based at least in part on a relationship between a first value related to the measured pressure, a second value related to the net flow, and a third value related to patient effort; and updating an interim value based at least in part on the prediction of the patient effort, wherein the interim value does not directly correspond to a respiratory parameter. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A ventilation system, the 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 pressure; calculate a net flow based at least in part on an inlet flow and an outlet flow; predict patient effort based at least in part on a relationship between a first value related to the pressure, a second value related to the net flow, and a third value related to patient effort; and update an interim value based at least in part on the predicted patient effort, wherein the interim value does not directly correspond to a respiratory parameter. - View Dependent Claims (46)
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47. A method for respiratory support, the method comprising:
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receiving a parameter set of one or more parameters; measuring a pressure; determining a net flow; predicting patient effort based at least in part on a relationship between a first value related to the measured pressure, a second value related to the net flow, and the parameter set; and updating an interim value based at least in part on the prediction of the patient effort, wherein the interim value does not directly correspond to an identifiable respiratory parameter. - View Dependent Claims (48, 49)
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50. A patient ventilator, the ventilator comprising:
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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 measure a pressure in the tube; a first flow sensor, wherein the first flow sensor is operable to measure an inlet flow associated with the gas inlet; a second flow sensor, wherein the second flow sensor is operable to measure an outlet 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 the measured pressure; receive the inlet flow; receive the outlet flow; calculate a net flow value based at least in part on the inlet flow and the outlet flow; predict patient effort based at least in part on a relationship between the measured pressure, the net flow, and a value related to patient effort; and update an interim value based at least in part on the predicted patient effort, wherein the interim value does not directly correspond to an identifiable respiratory parameter.
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51. A method for respiratory support, the method comprising:
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measuring a pressure; calculating a net flow; using the dynamic model;
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Specification