PATIENT CONTROL OF VENTILATION PROPERTIES
First Claim
Patent Images
1. A ventilator that provides a flow of gas for delivery to an airway of a subject, the ventilator comprising:
- a flow generating system adapted to generate a gas flow having one or more properties that facilitate respiration of a subject;
a processor adapted to control the flow generating system to control the one or more properties of the gas flow; and
a patient interface that is readily accessible to the subject and is adapted to receive a selection of an adjustment from the subject for at least one of the one or more properties of the gas flow,wherein the processor is configured to make the at least one of the one or more properties of the gas flow (a) adjustable via the patient interface and (b) restricted to adjustments to current levels of the at least one of the one or more properties that fall within a predetermined acceptable range to maintain a safety of ventilation for the subject, such that (i) if the at least one of the one or more properties of the gas flow will remain within the predetermined acceptable range to maintain the safety of the ventilation after the selected adjustment received via the patient interface is made, the processor controls the flow generating system to make the selected adjustment, and/or (ii) if the at least one of the one or more properties of the gas flow will fall outside of the predetermined acceptable range to maintain the safety of the ventilation after the selected adjustment received via the patient interface is made, the processor does not control the flow generating system to make the selected adjustment which prevents an improper adjustment that could expose the subject to risks to health and/or safety.
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Accused Products
Abstract
A ventilator (10) that pressurizes gas from a body of gas to provide a flow of gas to an airway of a subject (14) such that the gas flow mechanically facilitates the respiration of the subject (14). In order to enhance the comfort of the subject (14) during ventilation by the ventilator (10), the ventilator (10) enables the subject (14) to make unsupervised adjustments to one or more of the properties of the gas flow, within predetermined limits.
73 Citations
25 Claims
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1. A ventilator that provides a flow of gas for delivery to an airway of a subject, the ventilator comprising:
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a flow generating system adapted to generate a gas flow having one or more properties that facilitate respiration of a subject; a processor adapted to control the flow generating system to control the one or more properties of the gas flow; and a patient interface that is readily accessible to the subject and is adapted to receive a selection of an adjustment from the subject for at least one of the one or more properties of the gas flow, wherein the processor is configured to make the at least one of the one or more properties of the gas flow (a) adjustable via the patient interface and (b) restricted to adjustments to current levels of the at least one of the one or more properties that fall within a predetermined acceptable range to maintain a safety of ventilation for the subject, such that (i) if the at least one of the one or more properties of the gas flow will remain within the predetermined acceptable range to maintain the safety of the ventilation after the selected adjustment received via the patient interface is made, the processor controls the flow generating system to make the selected adjustment, and/or (ii) if the at least one of the one or more properties of the gas flow will fall outside of the predetermined acceptable range to maintain the safety of the ventilation after the selected adjustment received via the patient interface is made, the processor does not control the flow generating system to make the selected adjustment which prevents an improper adjustment that could expose the subject to risks to health and/or safety. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9)
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3. (canceled)
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10. A method of providing a gas flow for delivery to an airway of a subject, the method comprising:
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generating a gas flow having one or more properties that facilitate respiration of the subject; configuring at least one of the one or more properties of the gas flow to be (a) adjustable and (b) restricted to adjustments to current levels of the at least one of the one or more properties that fall within a predetermined acceptable range to maintain a safety of ventilation for the subject; receiving a selection of an adjustment from the subject for at least one of the one or more properties of the gas flow; making the selected adjustment to the at least one of the one or more properties of the gas flow if the at least one of the one or more properties of the gas flow will remain within the predetermined acceptable range to maintain the safety of ventilation for the subject after the selected adjustment is made; and declining to make the selected adjustment to the at least one of the one or more properties of the gas flow if the at least one of the one or more properties of the gas flow would not remain within the predetermined acceptable range after the selected adjustment, which prevents an improper adjustment that could expose the subject to risks to health and/or safety. - View Dependent Claims (11, 13, 14, 15, 16, 17)
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12. (canceled)
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18. A system configured to provide a gas flow for delivery to an airway of a subject, the system comprising:
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means for generating a gas flow having one or more properties that facilitate respiration of the subject; means for configuring at least one of the one or more properties of the gas flow to be (a) adjustable and (b) restricted to adjustments to current levels of the at least one of the one or more properties that fall within a predetermined acceptable range to maintain a safety of ventilation for the subject; means for receiving a selection of an adjustment from the subject for at least one of the one or more properties of the gas flow; means for making the selected adjustment to the at least one of the one or more properties of the gas flow if the at least one of the one or more properties of the gas flow will remain within the predetermined acceptable range to maintain the safety of ventilation for the subject after the selected adjustment is made; and means for declining to make the selected adjustment to the at least one of the one or more properties of the gas flow if the at least one of the one or more properties of the gas flow would not remain within the predetermined acceptable range after the selected adjustment, which prevents an improper adjustment that could expose the subject to risks to health and/or safety. - View Dependent Claims (19, 21, 23, 24)
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20. (canceled)
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22. (canceled)
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25. (canceled)
Specification