Abstract: A therapeutic gas source and cart and methods thereof for use with a therapeutic gas delivery system is disclosed. The therapeutic gas source may include a cylinder operable to contain a therapeutic gas that includes a body and a gas source valve body. In some examples, the gas source valve body has a valve and a coupling member.

Abstract: A differential pressure transducer determines pressure differentials between respiratory airflows and ambient airflows. Another determines pressure differentials between respiratory airflows and interface airflows. And another determines pressure differentials between i) respiratory airflows received from a subject and ii) interface airflows received from an area near a cannula. Corresponding respiratory monitoring methods also determine the same.

Abstract: A method for mobilizing an occlusion from a breathing tube is presented. The method includes automatically mobilizing the occlusion from the breathing tube by regulating an inspiratory flow, an expiratory flow, or a combination thereof, where the breathing tube is configured to operationally couple a patient to a ventilation system, and where the ventilation system is configured to provide artificial respiration to the patient.

Abstract: System and methods for ventilating a patient are provided. In one embodiment, the method comprises steps of placing a ventilator in a mode capable of delivering respiratory gas based on at least one fixed parameter and at least one variable parameter, the fixed parameters being tidal volume and peak airway pressure and the variable parameter being PEEP, identifying a first level for the PEEP, configuring the ventilator to deliver the respiratory gas at the peak airway pressure and the PEEP to achieve the tidal volume, monitoring respiratory gas flow over time to measure tidal volume, setting a second level for the PEEP based on the measured tidal volume, automatically adjusting the PEEP to the second level relative to the peak airway pressure and repeating the steps of configuring, monitoring, setting and automatically adjusting to achieve the ventilation.

Abstract: System and methods for ventilating a patient are provided. In one embodiment, the method comprises steps of placing a ventilator in a mode capable of delivering respiratory gas based on at least one fixed parameter and at least one variable parameter, the fixed parameters being tidal volume and peak airway pressure and the variable parameter being PEEP, identifying a first level for the PEEP, configuring the ventilator to deliver the respiratory gas at the peak airway pressure and the PEEP to achieve the tidal volume, monitoring respiratory gas flow over time to measure tidal volume, setting a second level for the PEEP based on the measured tidal volume, automatically adjusting the PEEP to the second level relative to the peak airway pressure and repeating the steps of configuring, monitoring, setting and automatically adjusting to achieve the ventilation.

Abstract: A method and system for synchronizing a patient monitoring device with a ventilator device is disclosed herein. The method comprises: accessing a ventilation sequence defined by at least one device setting parameter and initiating assessment of a patient parameter with reference to at least one of the device setting parameter. The method further comprises controlling the progress on the ventilation maneuver based on the patient parameter assessment.

Abstract: A method for mobilizing an occlusion from a breathing tube is presented. The method includes automatically mobilizing the occlusion from the breathing tube by regulating an inspiratory flow, an expiratory flow, or a combination thereof, where the breathing tube is configured to operationally couple a patient to a ventilation system, and where the ventilation system is configured to provide artificial respiration to the patient.

Abstract: A method of setting inspiratory time in controlled mechanical ventilation varies a subject's inspiratory times; determines at least one or more of end tidal gas concentrations or gas volumes exhaled by the subject per breath or both associated with the inspiratory times; establishes a stable condition of at least one or more of the gas concentrations or the gas volumes or both; and determines an optimal inspiratory time based on a deviation from the stable condition. Similarly, a device for use in controlled mechanical ventilation comprises means for varying a subject's inspiratory times; means for determining at least one or more of end tidal gas concentrations or gas volumes exhaled by the subject per breath or both associated with the inspiratory times; means for establishing a stable condition of at least one or more of the gas concentrations or the gas volumes or both; and means for determining an optimal inspiratory time based on a deviation from the stable condition.

Abstract: A method of setting inspiratory time in controlled mechanical ventilation varies a subject's inspiratory times; determines end tidal gas concentrations associated with the inspiratory times; establishes a stable condition of the gas concentrations; and determines an optimal inspiratory time based on a deviation from the stable condition. Similarly, a device for use in controlled mechanical ventilation comprises means for varying a subject's inspiratory times; means for determining end tidal gas concentrations associated with the inspiratory times; means for establishing a stable condition of the gas concentrations; and means for determining an optimal inspiratory time based on a deviation from the stable condition.

Abstract: A method of setting expiratory time in controlled mechanical ventilation sets a subject's expiratory time based on when the subject's tidal volume expires. Another method determines when the subject's tidal volume expires and sets the subject's expiratory time based on the determination. A device for use in controlled mechanical ventilation comprises a flow rate sensor configured to determine when a subject's tidal volume expires and bases the subject's expiratory time on the determination.

Abstract: A method of setting expiratory time in controlled mechanical ventilation sets a subject's expiratory time based on the subject's natural exhalation time. Another method determines the subject's natural exhalation time and sets the subject's expiratory time based on the determination. A device for use in controlled mechanical ventilation comprises a flow rate sensor configured to determine a subject's natural exhalation time and base the subject's expiratory time on the determination.

Abstract: A method sets a subject's expiratory time based on the subject's natural exhalation time, when the subject's natural exhalation flow ceases, and/or when the subject's tidal volume is expired. Another determines the subject's natural exhalation time, when the subject's natural exhalation flow ceases, and/or when the subject's tidal volume is expired, and sets the subject's expiratory time based on the determination. In addition, a flow rate sensor determines the subject's natural exhalation time, when the subject's natural exhalation flow ceases, and/or when the subject's tidal volume is expired, and bases the subject's expiratory time on the determination.

Abstract: A method of setting inspiratory time in controlled mechanical ventilation varies a subject's inspiratory times; determines gas volumes exhaled by the subject per breath associated with the inspiratory times; establishes a stable condition of the gas volumes; and determines an optimal inspiratory time based on a deviation from the stable condition. Similarly, a device for use in controlled mechanical ventilation comprises means for varying a subject's inspiratory times; means for determining gas volumes exhaled by the subject per breath associated with the inspiratory times; means for establishing a stable condition of the gas volumes; and means for determining an optimal inspiratory time based on a deviation from the stable condition.

Abstract: A method of setting expiratory time in controlled mechanical ventilation sets a subject's expiratory time based on when the subject's natural exhalation flow ceases. Another method determines when the subject's natural exhalation flow ceases and sets the subject's expiratory time based on the determination. A device for use in controlled mechanical ventilation comprises a flow rate sensor configured to determine when a subject's natural exhalation flow ceases and bases the subject's expiratory time on the determination.

Abstract: A method of setting inspiratory time, expiratory time, and a subject's breath size in controlled mechanical ventilation comprises: a) setting a subject's expiratory time; b) setting the subject's inspiratory time; and c) setting the subject's breath size, all based on various criteria.

Abstract: A cannula receives respiratory airflows and ambient airflows; a differential pressure transducer determine pressure differentials between the respiratory airflows and the ambient airflows; and a ventilator responds to the pressure differentials. Another receives respiratory airflows and interface airflows; a differential pressure transducer determine pressure differentials between the respiratory airflows and the interface airflows; and a ventilator responds to the pressure differentials. And another receives respiratory airflows from a subject and interface airflows from an area near a cannula; a differential pressure transducer determine pressure differentials between the respiratory airflows and the interface airflows; and a ventilator responds to the pressure differentials. Corresponding respiratory monitoring methods receive, determine, and control the same.