The invention provides an anesthesia machine comprising a driving gas branched path, a fresh gas branched path, and a breathing circuit. The fresh gas branched path delivers fresh gas having anesthetic into the breathing circuit. The driving gas branched path drives fresh gas from the breathing circuit to a patient. The driving gas branched path comprises a fan assembly, which comprises a housing, a fan, and a heat-dissipating member. The fan is disposed in a first inner chamber, and drives air into the first inner chamber. The heat-dissipating member conducts to the housing the heat generated by the motor.

Provided are an anesthesia respiration apparatus, an anesthesia respiration gas path system, and an anesthetic gas path system, to exhibit a novel anesthesia respiration structure. In this structure, some channels are provided in an anesthesia main machine, and no long external pipeline or only a small number of long pipelines are required to meet demands of gas path connection, thereby reducing various potential safety hazards and inconvenience caused by excessive exposed long pipelines.

Systems and methods for generating nitric oxide are disclosed. A nitric oxide (NO) generation system includes at least one pair of electrodes configured to generate a product gas containing NO from a flow of a reactant gas; and a controller configured to regulate the amount of nitric oxide in the product gas produced by the at least one pair of electrodes by utilizing duty cycle values of plasma pulses selected from a plurality of discrete duty cycles to produce a target rate of NO production based on an average of discrete production rates associated with each of the plurality of discrete duty cycles.

The present disclosure provides systems and methods for nitric oxide (NO) generation and/or delivery. In some aspects, a nitric oxide generation system comprises a plasma chamber configured to ionize a reactant gas including nitrogen and oxygen to form a product gas that includes NO, a scrubber downstream from the plasma chamber and having a volume at least partially containing NO.sub.2 scrubbing material, and a flow controller downstream of the scrubber configured to control the flow of product gas from the scrubber to a delivery device. A pump is configured to convey product gas from the plasma chamber into the scrubber and is configured to pressurize the product gas in the scrubber when the flow controller is positioned to restrict the flow of product gas from the scrubber. The pressurized product gas accumulates within the scrubber and is at least partially scrubbed of NO.sub.2 prior to passage through the flow controller.

An apparatus for respirating a patient has a line system for a lead-through of respiratory or anaesthesia gas. The line system has a first connection for the patient, a second connection for input of the gas, and a third connection for discharge of gas. The line system is formed of plate-shaped first and second parts. The inner surface of the first and second parts face each other and are movable toward each other. A canal is formed on the inner surface and defines at least a portion of a flow-through pathway for the gas.

A medication delivery apparatus and system for the application of a medical agent to a treatment site, such as an airway, and method for use of same are disclosed. In one embodiment of the medication delivery apparatus and system, a reservoir supplies a medical agent to a lower chamber of a housing wherein an ultrasonic transducer applies ultrasonic energy thereto, thereby nebulizing the medical agent. A control valve is interposed between a source of positive pressure air and an upper chamber of the housing to selectively apply positive air pressure to the upper chamber. Upon the application of positive air pressure, the airflow delivers the nebulized medical agent to a target location, such as the airway.

Inhalation of low levels of nitric oxide can rapidly and safely decrease pulmonary hypertension in mammals. A nitric oxide delivery system that converts nitrogen dioxide to nitric oxide employs a surface-active material, such as silica gel, coated with an aqueous solution of antioxidant, such as ascorbic acid.

A device, for dispensing an anesthetic into a gas stream, has a gas inlet, via which gas to be enriched with anesthetic and coming from a gas source flows in and with a gas outlet, via which gas enriched with anesthetic flows out to a patient port. A heating element, for heating the gas stream, is arranged upstream of an evaporation chamber, for dispensing an anesthetic into the gas stream, between the gas inlet and the gas outlet. The heating element is actuated by a control unit such that heat is fed to the gas to be enriched with anesthetic for evaporation of the anesthetic located in the evaporation chamber as a function of at least one status parameter of the gas to be enriched with the anesthetic and/or of the gas at least partially enriched with the anesthetic.

An apparatus for oxygenation and/or CO2 clearance of a patient. The apparatus comprising: a flow source or a connection for a flow source for providing a gas flow, a gas flow modulator, a controller to control the gas flow. The controller is operable to: receive input relating to heart activity and/or trachea gas flow of the patient, and control the gas flow modulator to provide a varying gas flow with at least two oscillating components. One oscillating component has a frequency based on the heart activity and/or trachea flow of the patient. One oscillating component has a frequency to: promote bulk gas flow movement, or promote mixing.

An endopharyngeal airway positive pressure ventilation device and method of use for ventilating a patient through a nasopharyngeal airway in surgical settings that is incapable of normal ventilation with current anesthetic techniques due to a risk for airway obstruction in surgical procedures requiring conscious sedation monitored anesthesia care (MAC). The invention includes a single-lumen endopharyngeal nasal tube with an eye shaped opening at its distal end and a cylindrical proximal end used as an adaptor for anesthetic applications such as positive airway pressure via JACKSON-REES modified ambu-bag or other various anesthesiology applications. Contiguous to the distal end of the nasal tube is an end-tidal CO2 monitoring port (ETCO2). On the distal end of the flexible nasal ventilation tube is an eye opening allowing air flow to the posterior pharynx. The device further includes a modified JACKSON-REES ambu bag which allows for controlled airflow to the patient during a REESE procedure.