The present invention includes a device for hypoxia training comprising: one or more electrochemical cells each comprising: a cathode and an anode separated by a proton exchange membrane, each of the anode and cathode in communication with an input and an output, wherein the input of the cathode is in fluid communication with ambient air, and wherein the input of the anode is in fluid communication with a source of liquid water; a power supply connected to the one or more electrochemical cells; and a mask in fluid communication with the output from the cathode of the one or more electrochemical cells, wherein oxygen is removed from the ambient air during contact with the cathode when hydrogen ions separated from liquid water by a catalyst on the anode convert oxygen in the ambient air into water.

The present invention relates to a water reservoir for a device for gas humidification in laparoscopy with a water reservoir for connecting to a gas supply device (insufflator).

Some embodiments provide for humidifier control systems and methods configured to adjust power to a heater plate in a surgical humidifier to account for changes in flow rate to provide a consistent output, to provide functionality for different modes of use, and to provide accurate control over temperature and/or humidity at relatively low flows. The humidifier control system can receive a flow rate reading and determine a power requirement corresponding to the received flow rate reading, wherein the power requirement is one of a plurality of set points which correspond to ranges of flow rates. The humidifier control system can determine a mode of use based at least in part on the flow rate reading. The humidifier control system can provide electrical power to the heater plate according to the power requirement and/or the mode of use.

A water reservoir for an apparatus for humidifying a flow of air for delivery to an entrance of the airways of a patient for respiratory therapy includes a reservoir base configured to hold a volume of water, a reservoir lid comprising an inlet and an outlet, a hinge joint to pivotally couple the reservoir lid to the reservoir base for pivotal movement between an open position and a closed position, wherein the reservoir lid and the reservoir base cooperate to form a sealed internal volume at the closed position, and a rotation stop, wherein the rotation stop is arranged between the reservoir lid and the reservoir base at the open position, and wherein the rotation stop is configured and arranged to disconnect the reservoir lid from the reservoir base at the hinge joint when the reservoir lid is over-pivoted beyond the open position.

A respiratory pressure therapy (RPT) device is disclosed for treatment of respiratory-related disorders. The RPT device includes a pressure generator, a pneumatic block, a chassis and a device outlet for delivering a supply of flow of gas to a patient interface. The RPT device also comprises an integrated humidifier including a water reservoir. An RPT device is also disclosed that includes a wireless data communication interface integrated with the housing and configured to connect to another device or a network.

A reusable apparatus, such as a medical instrument or tool, is decontaminated by applying at least one of pressure waves, shockwaves, and ultrasound waves in a sufficient dosage to remove contamination but without adversely affecting the ability to reuse the apparatus.

A heated conduit is configured to be connected to and receive pressurized breathable gas from a respiratory unit. The heated conduit includes a first cuff configured to be attached to the respiratory unit, the first cuff comprising a tubular air inlet portion that is configured to receive the pressurized breathable gas and an electrical connector portion that is adjacent to the tubular air inlet portion and comprises three electrical terminals. The three electrical terminals are configured to engage an electrical connector of the respiratory unit. A grouping of wires are supported within a helical rib of a flexible tube portion. The grouping of wires includes a pair of heating wires configured to generate heat and a signal wire configured to carry the signal that is output by a sensing device. Each of the heating wires and the signal wire is connected to a corresponding one of the three electrical terminals of the electrical connector portion of the first cuff.

Over-enthalpy conditions when using a respiratory and/or surgical humidifier system can be prevented. A heating element power in an inspiratory conduit can be limited based at least in part on one or more parameters of the gases flow, and/or on an ambient temperature. The limit on the heating element power in the inspiratory conduit can be achieved using a processor and/or protection circuit(s) located outside the processor. For example, the system can use the processor to determine and/or apply the limit as a level of protection and use the protection circuit(s) as another level of protection.

A patient interface for delivery of gas to a patient comprises at least one inspiratory element for directing a flow of gas to a patient airway, at least one expiratory element comprising an expiratory gas flow path for directing expiratory gases from the patient; and at least one gas permeable body in the expiratory gas flow path. Each inspiratory element comprises at least one inspiratory lumen through which said flow of gas is directed. The gas permeable body is configured such that expiratory gases in the expiratory gas flow path are directed through the gas permeable body before exiting the patient interface.

A reusable apparatus, such as a medical instrument or tool, is decontaminated by applying pressure waves with direct contact of the pressure wave applicator to the reusable apparatus in an open bath in a sufficient dosage to remove contamination but without adversely affecting the ability to reuse the apparatus.