Abstract: An anesthesia system is disclosed herein. The system includes an anesthesia machine comprising an anesthesia machine input, and a stand-alone vaporizer connected to the anesthesia machine. The stand-alone vaporizer includes a vaporizer input. The stand-alone vaporizer is configured to produce a selectable concentration of an anesthetic agent. The anesthesia machine input and the vaporizer input may be independently implemented to regulate the concentration of the anesthetic agent from the stand-alone vaporizer.

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 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 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 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.