A cardiopulmonary resuscitation system capable of avoiding fighting in an asynchronous mode in which sternum compression and artificial respiration are performed independently and continuously. The cardiopulmonary resuscitation system includes: a sternum compressor that includes an impact hammer for compressing the chest of a patient and repeats a sternum compression cycle having, as one cycle, a compression period in which the impact hammer is pressed against the chest and a recoil period in which the impact hammer is separated from the chest; an artificial respirator that repeats an artificial respiration cycle having, as one cycle, an inhalation period in which respiratory gas is supplied to the patient and an exhalation period in which supply of the respiratory gas is stopped; and a controller that controls the artificial respirator and the sternum compressor, the controller executes the artificial respiration cycle a predetermined number of times per unit time while executing the sternum compression cycle a predetermined number of times per unit time, and stops pressing the impact hammer against the chest during the compression period overlapping with the inhalation period.

The present invention relates to a sleep-inducing system using carbon dioxide. The sleep-inducing system includes a mixed gas generation unit which generates a mixed gas of which a carbon dioxide concentration is within a preset range by mixing provided carbon dioxide and air, an emission unit which sprays the mixed gas from a position spaced apart from a user's face, a concentration sensing sensor which measures the carbon dioxide concentration of the sprayed mixed gas, and a control unit which controls the carbon dioxide concentration of the mixed gas generated by the mixed gas generation unit to be within the preset range on the basis of the measured carbon dioxide concentration.

A respiratory gas delivery system monitors gas flow over the course of a breath in real time and uses this parameter to simulate, in whole or part, the function of a reference respiratory gas delivery system, in particular structural features, particularly structural components of parts of the reference system, to overcome a structural limitation of the reference system.

This disclosure provides an anesthesia machine and system, which may be used in the technical field of medical devices. The anesthesia machine may include a gas source interface and an oxygen supply apparatus and an anesthetic breathing apparatus separately connected to the gas source interface. The oxygen supply apparatus may provide an oxygen-containing gas to a patient. The anesthetic breathing apparatus may provide anesthetic breathing support to the patient. The anesthesia machine system may further include an anesthesia machine and an oxygen supply device. The anesthesia machine may be further provided with a fixing mechanism, and the oxygen supply device may be detachably fixed to the anesthesia machine by means of the fixing mechanism.

Apparatus and methods for delivering humidified breathing gas to a patient a provided. The apparatus includes a humidification system configured to deliver humidified breathing gas to a patient. The humidification system includes a vapor transfer unit and a base unit The vapor transfer unit includes a liquid passage, a breathing gas passage, and a vapor transfer device positioned to transfer vapor to the breathing gas passage from the liquid passage. The base unit includes a base unit that releasably engages the vapor transfer unit to enable reuse of the base unit and selective disposal of the vapor transfer unit. The liquid passage is not coupled to the base unit for liquid flow therebetween when the vapor transfer unit is received, by the base unit.

Apparatus and methods for delivering humidified breathing gas to a patient are provided. The apparatus includes a humidification system configured to deliver humidified breathing gas to a patient. The humidification system includes a vapor transfer unit and a base unit. The vapor transfer unit includes a liquid passage, a breathing gas passage, and a vapor transfer device positioned to transfer vapor to the breathing gas passage from the liquid passage. The base unit includes a base unit that releasably engages the vapor transfer unit to enable reuse of the base unit and selective disposal of the vapor transfer unit. The liquid passage is not coupled to the base unit for liquid flow therebetween when the vapor transfer unit is received by the base unit.

Methods of promoting hypoxia or the hypoxia response for the treatment or prevention of mitochondrial dysfunction and oxidative stress disorders are described. Methods for screening for targets of mitochondrial dysfunction and oxidative stress disorders are also described.

The invention relates to a face mask arrangement for alternately administering a gas I containing nitrous oxide and a gas II devoid of nitrous oxide to a patient, comprising a face mask, two inlet flow lines I and II for gas I and a gas II, respectively, which flow lines end in a breathing interface, and an outlet flow line for evacuation of exhaled gas. The two inlet flow lines merge into a common inlet part. Each of the inlet flow lines I and II comprises an inlet valve I and II, each of which is capable of opening in response to inhalation and of closing in response to exhalation. The arrangement comprises a switching means enabling switching between inhalation through inlet flow line I and inlet flow line II depending on the patient's immediate need of gas I or gas II. The invention relates also to a system comprises the face mask arrangement and an apparatus for collecting inhalation air from patients inhaling gas containing nitrous oxide and to the use of the face mask arrangement for administration of nitrous oxide to a patient via inhalation and collecting nitrous oxide from exhaled air of a patient during the administration.

A respiratory gas delivery system monitors gas flow over the course of a breath in real time and uses this parameter to simulate, in whole or part, the function of a reference respiratory gas delivery system, in particular structural features, particularly structural components of parts of the reference system, to overcome a structural limitation of the reference system.

A delivery device for and a method of delivering gases to the nasal airway, in particular therapeutic gases and gases in combination with active substances, either as powders or liquids, for enhanced uptake of the active substances.