Back to results
US 11,446,463 B2Granted
Devices, systems, and methods for applying positive end expiratory pressure
AssigneeOnebreath, Inc.
InventorsMatthew John Callaghan, Lawrence Edward Miller, Edward Ayrapetian
Life of this patent
Estimating the term…
Abstract
Embodiments disclosed herein are directed to ventilation devices, systems, and methods for applying positive end expiratory pressure (PEEP) to the lungs of a patient. For example, applying above atmospheric pressure to the lungs of the patient may mitigate alveolar collapse in the lungs and/or may have other health benefits for the patient.
Claims23
A system for applying positive end expiratory pressure (PEEP) in ventilation of lungs of a patient, the system comprising:
- an exhalation line configured to be in fluid communication with the lungs of the patient and to receive exhaled gas from the lungs of the patient;
- a diaphragm valve having an actuator and a diaphragm, the diaphragm valve coupled to the exhalation line and configured to restrict fluid flow therefrom, thereby applying positive end expiratory pressure during exhalation of air from the lungs of the patient, in response to a control pressure applied at the actuator of the diaphragm valve;
- an actuator line coupling the diaphragm valve to a source of pressurized fluid with the diaphragm valve between the exhalation line and the actuator line;
- an electrically-controllable valve coupled to the actuator line and controlling the pressure applied by fluid from the source of pressurized fluid to the actuator of the diaphragm valve effective to control a position of the actuator and the diaphragm in the diaphragm valve;
- an outlet line coupled to the diaphragm valve and in fluid communication with approximately atmospheric pressure, the diaphragm valve being positioned between the exhalation line and the outlet line;
- and
- a controller operably coupled to the electrically-controllable valve and configured to change the positive end expiratory pressure by directing operation of the electrically-controllable valve.
4 more elements
A system for applying positive end expiratory pressure (PEEP) in ventilation of lungs of a patient, the system comprising:
- an exhalation line configured to be in fluid communication with the lungs of the patient and to receive exhaled gas from the lungs of the patient;
- a pressure-operated valve coupled to the exhalation line and configured to restrict fluid flow therefrom, thereby applying positive end expiratory pressure during exhalation of air from the lungs of the patient, in response to a control pressure applied on an actuator of the pressure-operated valve;
- an actuator line coupling the pressure-operated valve control to a source of pressurized breathable gas and configured to supply the pressurized breathable gas to apply the control pressure on the actuator of the pressure-operated valve with the pressure-operated valve between the exhalation line and the actuator line;
- an inhalation line coupleable to the source of pressurized breathable gas to supply the breathable gas into the lungs of the patient;
- an outlet line coupled to the pressure-operated valve and in fluid communication with approximately atmospheric pressure, the outlet line being downstream from the pressure-operated valve and the exhalation line such that the exhaled gas flows from the exhalation line, through the pressure-operated valve, and out the outlet line;
- and
- a supply valve coupleable to the source of pressurized breathable gas and coupled to the actuator line and to the inhalation line and configured to control supply of the pressurized breathable gas to the actuator line and the inhalation line.
4 more elements
A method for controlling application of positive end expiratory pressure (PEEP) in ventilation of lungs of a patient, the method comprising:
- placing a pressurizable channel in fluid communication with the lungs of the patient for accepting exhaled gas therefrom;
- operating a pressure-controllable valve to control flow of the exhaled gas in the pressurizable channel by applying pressure from an actuator line at an actuator of the pressure-controllable valve, the pressure controllable valve located between the actuator line and the pressurizable channel;
- placing an outlet line in fluid communication with approximately atmospheric pressure and coupled to the pressure-controllable valve with the outlet line being downstream from the pressure-controllable valve and the pressurizable channel such that the exhaled gas flows from the pressurizable channel, through the pressure controllable valve, and out the outlet line;
- and
- controlling a solenoid valve to apply the pressure at the actuator of the pressure-controllable valve.
2 more elements
Dependencies are inferred from the claim text.