Systems and methods for therapeutic intrathoracic pressure regulation
First Claim
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1. A system for providing intrathoracic pressure regulation (IPR) to an individual, the system comprising:
- a patient connection mechanism for coupling with an airway of the individual;
a control assembly comprising a housing having a vent, a gas mover disposed within the housing, wherein the gas mover is one or more of an impeller, a reciprocating pump, a turbine, a venturi, a centrifugal blower, and a roots blower, and a motor in operative association with the gas mover; and
a positive pressure source,wherein the positive pressure source is in fluid communication with the housing vent of the control assembly,wherein the gas mover of the control assembly is disposed between the patient connection mechanism and the positive pressure source, along a fluid passage that extends between the patient connection mechanism and the positive pressure source, andwherein the control assembly is configured to allow airflow from the positive pressure source to the patient connection mechanism while simultaneously compelling airflow from the patient connection mechanism to the housing vent.
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Abstract
Embodiments of the present invention provide systems and methods for delivering respiratory treatment to a patient. For example, a treatment system may include a mechanism for delivering a positive pressure breath to a patient, and one or more limb flow control assemblies which modulate gas flow to and from the patient. Exemplary treatment techniques are embodied in anesthesia machines, mechanical ventilators, and manual ventilators.
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Citations
38 Claims
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1. A system for providing intrathoracic pressure regulation (IPR) to an individual, the system comprising:
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a patient connection mechanism for coupling with an airway of the individual; a control assembly comprising a housing having a vent, a gas mover disposed within the housing, wherein the gas mover is one or more of an impeller, a reciprocating pump, a turbine, a venturi, a centrifugal blower, and a roots blower, and a motor in operative association with the gas mover; and a positive pressure source, wherein the positive pressure source is in fluid communication with the housing vent of the control assembly, wherein the gas mover of the control assembly is disposed between the patient connection mechanism and the positive pressure source, along a fluid passage that extends between the patient connection mechanism and the positive pressure source, and wherein the control assembly is configured to allow airflow from the positive pressure source to the patient connection mechanism while simultaneously compelling airflow from the patient connection mechanism to the housing vent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for providing intrathoracic pressure regulation to an individual, comprising:
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a housing having at least two ports, a first port configured to be in fluid communication with a positive pressure source and a second port configured to be in fluid communication with an individual'"'"'s airway; a gas mover disposed within the housing and configured to provide negative intrathoracic pressure within the individual by moving air from the individual'"'"'s airway, through the second port, and through the first port, the gas mover positioned such that at least one passage exists between the gas mover and the housing, the passage being in fluid communication with the first port and the second port and allowing retrograde airflow from a positive pressure source, through the first port, through the second port, and to the individual'"'"'s airway, against the movement of air caused by the gas mover; and a motor in operative association with the gas mover. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of providing intrathoracic pressure regulation (IPR) to an individual, the method comprising:
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coupling an IPR system with an airway of the individual, the IPR system having a housing with a vent, a gas mover disposed within the housing, a motor in operative association with the gas mover, and a positive pressure source in fluid communication with the housing vent, wherein the gas mover is disposed between the airway and the positive pressure source, along a fluid passage that extends between the airway and the positive pressure source, and activating the gas mover and the positive pressure source, so as to allow retrograde airflow from the positive pressure source to the individual while simultaneously compelling airflow from the airway to the housing vent. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of providing intrathoracic pressure regulation (IPR) to an individual, the method comprising:
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coupling an IPR system with an airway of the individual, wherein the IPR system comprises; a patient connection mechanism for coupling with an airway of the individual; a control assembly comprising a housing having a vent, a gas mover disposed within the housing, wherein the gas mover is one or more of an impeller, a reciprocating pump, a turbine, a venturi, a centrifugal blower, and a roots blower, and a motor in operative association with the gas mover, and a positive pressure source, wherein the positive pressure source is in fluid communication with the housing vent of the control assembly, wherein the gas mover of the control assembly is disposed between the patient connection mechanism and the positive pressure source, along a fluid passage that extends between the patient connection mechanism and the positive pressure source, and wherein the control assembly is configured to allow airflow from the positive pressure source to the patient connection mechanism while simultaneously compelling airflow from the patient connection mechanism to the housing vent; using the IPR system to manipulate respiratory gas exchange such that intrathoracic pressures during exhalation remain at or below atmospheric pressure, thereby enhancing venous blood flow back to the thorax into the heart and lungs; and periodically injecting air to the individual'"'"'s lungs while simultaneously operating the gas mover. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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38. A system comprising:
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a patient connection mechanism for coupling with an airway of an individual; a control assembly comprising a housing having a vent and an impeller disposed within the housing, the impeller being operatively associated with a motor by way of a magnetic clutch; a ventilator in fluid communication with the housing vent of the control assembly; and a pressure sensor that monitors the individual'"'"'s airway pressure between the control assembly and the individual, and a controller device that receives information from the pressure sensor and controls operation of the control assembly based on the information, wherein the impeller of the control assembly is disposed between the patient connection mechanism and the ventilator, along a fluid passage that extends between the patient connection mechanism and the ventilator, wherein the impeller is disposed within the housing such that a passage is present between the housing and the impeller, the passage being in fluid communication with the ventilator, and wherein the control assembly is configured to allow airflow from the ventilator to the patient connection mechanism through the passage while simultaneously compelling airflow from the patient connection mechanism to the housing vent.
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Specification