Abstract: An adaptive gas mixture controller system. A pulse oximeter interface receives pulse oximeter data. A gas blender interface communicates with a separate externally connected gas blender. A processor receives pulse oximeter data via the pulse oximeter interface and outputs data to the gas blender interface for adaptive feedback control of the gas mixture based upon the SpO2 level signals from the pulse oximeter interface. When the processor receives data from the gas blender indicating that the gas mixture has been manually changed, enters a manual override mode and halts sending adaptive feedback control signals to the gas blender. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A computer implemented method is disclosed for providing adaptive control of a gas mixture for delivery to a patient via a separate external gas blender system. The computer implemented method includes receiving first SpO2 data from a regional oximeter via a regional oximeter interface; determining first PaO2 data using a first lookup table derived from a first sigmoid shaped oxyhemoglobin dissociation curve; determining a first gas mixture value using the first PaO2 data; and transmitting first adaptive feedback control data including the first gas mixture value to the separate external gas blender system via a gas blender interface.

Abstract: Disclosed herein are methods, systems, and devices for controlling a gas mixture within a mechanical ventilator. According to one embodiment, a computer implemented method includes receiving first peripheral arterial oxygen saturation (SpO2) data from a pulse oximeter via a pulse oximeter interface, wherein the pulse oximeter is configured to monitor a patient receiving invasive ventilation; determining a first mode of operation for a ventilator mechanism, wherein the ventilator mechanism is configured to provide at least a portion of the invasive ventilation; determining first partial pressure of oxygen (PaO2) data stored in a first lookup table using the first SpO2 data, wherein the first lookup table is derived from a sigmoid shaped oxyhemoglobin dissociation curve; determining first fraction of inspired oxygen in air (FiO2) data for setting a mixture in a gas blender in the ventilator mechanism based on the first PaO2 data and a variable offset; and providing the FiO2 data to the ventilator mechanism.

Abstract: Disclosed herein are methods, systems, and devices for controlling a gas mixture within a mechanical ventilator. According to one embodiment, a computer implemented method includes receiving first peripheral arterial oxygen saturation (SpO2) data from a pulse oximeter via a pulse oximeter interface, wherein the pulse oximeter is configured to monitor a patient receiving invasive ventilation; determining a first mode of operation for a ventilator mechanism, wherein the ventilator mechanism is configured to provide at least a portion of the invasive ventilation; determining first partial pressure of oxygen (PaO2) data stored in a first lookup table using the first SpO2 data, wherein the first lookup table is derived from a sigmoid shaped oxyhemoglobin dissociation curve; determining first fraction of inspired oxygen in air (FiO2) data for setting a mixture in a gas blender in the ventilator mechanism based on the first PaO2 data and a variable offset; and providing the FiO2 data to the ventilator mechanism.

Abstract: An adaptive gas mixture controller system. A pulse oximeter interface receives pulse oximeter data. A gas blender interface communicates with a separate externally connected gas blender. A processor receives pulse oximeter data via the pulse oximeter interface and outputs data to the gas blender interface for adaptive feedback control of the gas mixture based upon the SpO2 level signals from the pulse oximeter interface. When the processor receives data from the gas blender indicating that the gas mixture has been manually changed, enters a manual override mode and halts sending adaptive feedback control signals to the gas blender. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A computer implemented method is disclosed for providing adaptive control of a gas mixture for delivery to a patient via a separate external gas blender system. The computer implemented method includes receiving first SpO2 data from a regional oximeter via a regional oximeter interface; determining first PaO2 data using a first lookup table derived from a first sigmoid shaped oxyhemoglobin dissociation curve; determining a first gas mixture value using the first PaO2 data; and transmitting first adaptive feedback control data including the first gas mixture value to the separate external gas blender system via a gas blender interface.

Abstract: An adaptive gas mixture controller system. A pulse oximeter interface receives pulse oximeter data. A gas blender interface communicates with a separate externally connected gas blender. A processor receives pulse oximeter data via the pulse oximeter interface and outputs data to the gas blender interface for adaptive feedback control of the gas mixture based upon the SpO2 level signals from the pulse oximeter interface. When the processor receives data from the gas blender indicating that the gas mixture has been manually changed, enters a manual override mode and halts sending adaptive feedback control signals to the gas blender. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: An adaptive gas mixture controller system. A pulse oximeter interface receives pulse oximeter data. A gas blender interface communicates with a separate externally connected gas blender. A processor receives pulse oximeter data via the pulse oximeter interface and outputs data to the gas blender interface for adaptive feedback control of the gas mixture based upon the SpO2 level signals from the pulse oximeter interface. When the processor receives data from the gas blender indicating that the gas mixture has been manually changed, enters a manual override mode and halts sending adaptive feedback control signals to the gas blender. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: An automatic controller utilizes a pulse oximeter signal to regulate the oxygen mixture output, peak expiratory end pressure, and inspiratory ventilation time from a positive pressure respiratory assist ventilator. The pulse oximeter senses a patient's hemoglobin saturation and pulse rate by an optical sensor to develop a signal which is used by calculator to determine the patient's corresponding partial pressure of arterial blood. The calculated partial pressure of arterial blood is then used by the calculator in determining the level of inspired oxygen, peak expiratory end pressure, and inspiratory ventilation time provided to the patient. The calculator generates a signal to control the level of inspired oxygen, expiratory end pressure, and inspiratory ventilation time output from a positive pressure respiratory assist ventilator.

Abstract: An adaptive controller for delivering fractional inspired oxygen to a patient. The controller utilizes a pulse oximeter connected by an optical sensor to the patient for measuring the patient's blood hemoglobin saturation and pulse rate. Signals from the oximeter are used by a calculator for determining the fractional inspired oxygen level to be delivered to the patient. The calculated percentage of oxygen is provided to the patient so that the gas taken in by the patient automatically causes the blood in the patient to reach a predetermined hemoglobin saturation level which adapts to the patient's requirements. The calculator is programmed to determine when there is an excess deviation of the patient's pulse rate. When an excess deviation is detected, the fractional inspired oxygen level to the patient is fixed until the excess deviation of the pulse rate has been terminated.