METHODS AND SYSTEMS FOR MIMICKING FLUCTUATIONS IN DELIVERED FLOW AND/OR PRESSURE DURING VENTILATION
First Claim
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1. A method for ventilating a patient with a ventilator, comprising:
- receiving a user selected Continuous Positive Airway Pressure (CPAP) level;
generating a control signal for controlling breathing gas delivery and an exhalation valve to implement the user selected CPAP level;
generating a normalized bubble signal;
adding the control signal and the normalized bubble signal to form a mimic signal; and
delivering the user selected CPAP level to the patient with fluctuations in at least one of flow and pressure based on the mimic signal.
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Abstract
This disclosure describes systems and methods for a ventilator-derived CPAP system that mimics the flow and/or pressure oscillations or fluctuations of the B-CPAP system creating a breath type referred to herein as a mimicked-bubble-CPAP (M-CPAP) mode. Further, the disclosure describes systems and methods for delivery of other breath types with flow and/or pressure oscillations or fluctuations that mimic the oscillation observed during ventilation with the B-CPAP system, referred to herein as adjusted breath types.
63 Citations
25 Claims
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1. A method for ventilating a patient with a ventilator, comprising:
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receiving a user selected Continuous Positive Airway Pressure (CPAP) level; generating a control signal for controlling breathing gas delivery and an exhalation valve to implement the user selected CPAP level; generating a normalized bubble signal; adding the control signal and the normalized bubble signal to form a mimic signal; and delivering the user selected CPAP level to the patient with fluctuations in at least one of flow and pressure based on the mimic signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for ventilating a patient with a ventilator, comprising:
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receiving a breath type; generating a control signal for controlling breathing gas delivery and an exhalation valve to implement the breath type; generating a normalized bubble signal; adding the control signal and the normalized bubble signal to form a mimic signal; and delivering the breath type to the patient with fluctuations in at least one of flow and pressure based on the mimic signal. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A ventilator system comprising:
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a pressure generating system adapted to generate a flow of breathing gas; the pressure generating system includes an exhalation valve, the exhalation valve controls release of respiratory gases from a patient to the atmosphere; a ventilation tubing system including a patient interface for connecting the pressure generating system to the patient; and a bubble mimic module, the bubble mimic module generates a normalized bubble signal and adds the normalized bubble signal to a control signal for a breath type to form a mimic signal, wherein the pressure generating system delivers the breath type to the patient with fluctuations in at least one of flow and pressure based on the mimic signal from the bubble mimic module. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A computer-readable medium having computer-executable instructions for performing a method of ventilating a patient with a ventilator, the method comprising:
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receiving a breath type; repeatedly generating a control signal for operating at least one of an exhalation valve and a pressure generating system to provide the breath type; generating a normalized bubble signal for operating the at least one of the exhalation valve and the pressure generating system; repeatedly adding the control signal and the normalized bubble signal to form a mimic signal; repeatedly sending the mimic signal to the at least one of the exhalation valve and the pressure generating system; and repeatedly delivering the breath type to the patient with fluctuations in at least one of flow and pressure based on the mimic signal.
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25. A ventilator system, comprising:
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means for receiving a breath type; means for generating a control signal for operating at least one of an exhalation valve and a pressure generating system to provide the breath type; means for generating a normalized bubble signal for operating the at least one of the exhalation valve and the pressure generating system; means for adding the control signal and the normalized bubble signal to form a mimic signal; means for sending the mimic signal to the at least one of the exhalation valve and the pressure generating system; and means for delivering the breath type to a patient with fluctuations in at least one of flow and pressure based on the mimic signal.
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Specification