Parameter variation for proportional assist ventilation or proportional positive airway pressure support devices
First Claim
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1. A patient treatment system comprising:
- gas flow generating means for providing a flow of breathing gas to an airway of a patient;
pressure controlling means, associated with the gas flow generating means, for controlling a pressure of breathing gas provided to an airway of such a patient;
sensing means for detecting an instantaneous flow rate V and an instantaneous volume V of the flow of breathing gas provided to such a patient; and
processing means, associated with the sensing means and the pressure controlling means, for controlling the pressure controlling means such that the flow of breathing gas is provided to such a patient at a pressure in accordance with the following relation;
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Abstract
A system and method for providing a pressure support therapy administered to a patient, where at least one parameter associated with the pressure support therapy is varied according to a time-base parameter variation function. More specifically, at least one parameter or at least one group of parameters associated with a pressure control relation for providing a proportional assist ventilation (PAV) or a proportional positive airway pressure (PPAP) mode of ventilation is varied according to a time-based parameter variation function to control the PAV or PPAP ventilation with a maximum degree of flexibility.
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Citations
10 Claims
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1. A patient treatment system comprising:
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gas flow generating means for providing a flow of breathing gas to an airway of a patient;
pressure controlling means, associated with the gas flow generating means, for controlling a pressure of breathing gas provided to an airway of such a patient;
sensing means for detecting an instantaneous flow rate V and an instantaneous volume V of the flow of breathing gas provided to such a patient; and
processing means, associated with the sensing means and the pressure controlling means, for controlling the pressure controlling means such that the flow of breathing gas is provided to such a patient at a pressure in accordance with the following relation;
- View Dependent Claims (2, 3, 4, 5)
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6. A method of treating a patient comprising:
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providing a flow of breathing gas to an airway of a patient;
detecting an instantaneous flow rate {dot over (V)} and an instantaneous volume V of the flow of breathing gas provided to such a patient; and
controlling a pressure of breathing gas provided to an airway of such a patient in accordance with the following relation;
- View Dependent Claims (7, 8, 9, 10)
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Specification