VENTILATION APPARATUS
First Claim
1. A system for ventilating a patient comprising:
- a bag that is configured to be inflated through an input valve that allows oxygen and/or air to flow into the bag, the bag further configured to be deflated through an output valve that allows the oxygen and/or the air to flow out of the bag;
an actuator configured to compress the bag to cause the oxygen and/or the air to flow out of the output valve in accordance with prescribed values for one or more respiratory parameter, the one or more respiratory parameter including tidal volume, pressure, volume limit, peak pressure, I;
E ratio, inspiratory time, and/or breathing rate of the oxygen and/or the air flowing through the output valve to a patient;
a controller configured to control the position of the actuator and/or the speed at which the actuator moves in accordance with the prescribed values for the one or more respiratory parameter;
a pressure sensor coupled to the output valve and configured to determine the pressure of the oxygen and/or the air flowing through the output valve, the pressure sensor further configured to send a pressure signal to the controller;
a flow rate sensor coupled to the output valve and configured to determine the flow rate of the oxygen and/or the air flowing through the output valve, the flow rate sensor further configured to send a flow rate signal to the controller;
the controller configured to receive the pressure signal and/or the flow rate signal, and to determine whether the output tidal volume, pressure, volume limit, peak pressure, I;
E ratio, inspiratory time, and/or breathing rate are in accordance with the prescribed values, the controller further configured to adjust the position of the actuator and/or the speed at which the actuator moves so as to adjust the output tidal volume, peak pressure, and/or breathing rate to be in accordance with the prescribed values.
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Accused Products
Abstract
A method of ventilating a patient controls an actuator, in accordance with a prescribed value for a respiratory parameter, to compress an inflatable bag to cause air to flow out of an output valve of the bag. The respiratory parameter s may include tidal volume, pressure, volume limit, peak pressure, I:E ratio, inspiratory time, and/or breathing rate of the air flowing through the output valve. The method also senses the pressure flowing through the output valve, and sends a pressure signal to the controller. Additionally, the method senses the flow rate through the output valve, and sends a flow rate signal to the controller. The method also adjusts the compression of the actuator as a function of the flow rate signal and/or the pressure signal to adjust the output tidal volume, pressure, volume limit, peak pressure, I:E ratio, inspiratory time, and/or breathing rate to be in accordance with the prescribed value.
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Citations
20 Claims
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1. A system for ventilating a patient comprising:
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a bag that is configured to be inflated through an input valve that allows oxygen and/or air to flow into the bag, the bag further configured to be deflated through an output valve that allows the oxygen and/or the air to flow out of the bag; an actuator configured to compress the bag to cause the oxygen and/or the air to flow out of the output valve in accordance with prescribed values for one or more respiratory parameter, the one or more respiratory parameter including tidal volume, pressure, volume limit, peak pressure, I;
E ratio, inspiratory time, and/or breathing rate of the oxygen and/or the air flowing through the output valve to a patient;a controller configured to control the position of the actuator and/or the speed at which the actuator moves in accordance with the prescribed values for the one or more respiratory parameter; a pressure sensor coupled to the output valve and configured to determine the pressure of the oxygen and/or the air flowing through the output valve, the pressure sensor further configured to send a pressure signal to the controller; a flow rate sensor coupled to the output valve and configured to determine the flow rate of the oxygen and/or the air flowing through the output valve, the flow rate sensor further configured to send a flow rate signal to the controller; the controller configured to receive the pressure signal and/or the flow rate signal, and to determine whether the output tidal volume, pressure, volume limit, peak pressure, I;
E ratio, inspiratory time, and/or breathing rate are in accordance with the prescribed values, the controller further configured to adjust the position of the actuator and/or the speed at which the actuator moves so as to adjust the output tidal volume, peak pressure, and/or breathing rate to be in accordance with the prescribed values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of ventilating a patient comprising:
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controlling an actuator, in accordance with a prescribed value for a respiratory parameter, to compress an inflatable bag to cause oxygen and/or air to flow out of an output valve of the bag, the respiratory parameter being tidal volume, pressure, volume limit, peak pressure, I;
E ratio, inspiratory time, and/or breathing rate of the oxygen and/or the air flowing through the output valve;sensing the pressure flowing through the output valve, and sending a pressure signal to the controller; sensing flow rate through the output valve, and sending a flow rate signal to the controller; adjusting the compression of the actuator as a function of the flow rate signal and/or the pressure signal to adjust the tidal volume, pressure, volume limit, peak pressure, I;
E ratio, inspiratory time, and/or breathing rate to be in accordance with the prescribed value. - View Dependent Claims (12, 13, 14, 15)
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16. A non-transitory computer-readable medium encoded with instructions that, when executed by a processor, establish processes for performing a computer-implemented method of activating an actuator to ventilate a patient, the processes comprising:
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receiving an input of a prescribed value for a respiratory parameter; controlling an actuator coupled to a paddle having a convex contact surface to compress an inflatable bag to cause oxygen and/or air to flow out of an output valve of the bag in accordance with the prescribed value for the respiratory parameter; interfacing with (1) a pressure sensor that measures the pressure of the oxygen and/or the air flowing through the output valve, and/or (2) a flow rate sensor coupled to the output valve and configured to determine the flow rate of the oxygen and/or the air flowing through the output valve; receiving a pressure signal from the pressure sensor and/or a flow rate signal from the flow rate sensor; adjusting the controlling of the actuator to compress the bag with the convex contact surface to put the output value for the respiratory parameter in accordance with the prescribed value. - View Dependent Claims (17, 18, 19, 20)
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Specification