A first nitrous oxide delivery system (110) has a first housing (112) configured in a shape of a cigar. The first housing (112) has a first housing fill (112A) which is insulation to prevent frosting when the nitrous oxide is released from the nitrous oxide container (16). The first nitrous oxide delivery system (110) further comprises a mouthpiece (14) is positioned within the first housing front (112F). The first nitrous oxide delivery system (110) further comprises a nitrous oxide container (16) positioned within the first housing middle chamber (112MA). The nitrous oxide container (16) comprises a nitrous oxide container outlet (16A) sealaby attached to the front mouthpiece (14F). The nitrous oxide container (16) further comprises a nitrous oxide container inlet (16B) positioned through the first housing middle opening (112MB). The nitrous oxide container inlet (16B) functions as a re-filling port. When a user bites on the rear mouthpiece (14R) nitrous oxide flows from the nitrous oxide container (16) through the mouthpiece (14) into the user's mouth and lungs.
A device for pulsed delivery of inhaled nitric oxide (NO) to a spontaneously breathing patient is disclosed. The device delivers NO, e.g., through a nasal cannula, only during the inspiratory phase of the breathing cycle. The device automatically executes a purge cycle when it is initially activated, and when the time between breath-triggered NO pulses reaches a predetermined time limit. The purge cycle protects the patient from exposure to NO.sub.2 that otherwise would accumulate in the fluid lines from the reaction of static NO with oxygen in the air.
Methods for easing a patient's pain and anxiety from atrial or ventricular defibrillation are disclosed. The methods include causing the patient to inhale a medical gas prior to activation of a atrial defibrillation device or subsequent to activation of a ventricular defibrillation device. In the former case, the inhalation produces analgesia, anxiolysis or anterograde amnesia prior to, during and after the atrial defibrillation. In the latter case, the inhalation produces analgesia, anxiolysis or anterograde amnesia.
An injection system for the delivery of a gaseous substance to a patient respiratory system is described herein. The injection system includes a control unit and a valve assembly including a valve and a valve actuator allowing partial opening of the valve and controlled by the control unit. The control unit is supplied with gas flow data and controls the valve assembly so that the opening of the valve is a function to the gas flow to thereby enable the control over the concentration of the gaseous substance delivered to the patient.
An anesthesia delivery device can be coupled to a ventilation system. The device includes an inspiratory gas line having a machine end and a patient end. The machine end can be fluidly coupled to the ventilation system, and the patient end can be received within the naris of the patient. A face mask having a dome portion can cover the patient's nose without covering the patient's mouth and defines an inside air space between the patient's nose and the dome portion, and an outside air space exterior of the dome portion. A vent allows gas to pass between the inside and outside air spaces. An exhaust port can be fluidly coupled to the exhaust gas output. The exhaust port and vent can cooperatively exert a negative pressure on the outside air space for preventing inspiratory gas from entering the outside air space.
