An active and passive humidification device for mounting in a patient ventilation circuit comprises a housing having a ventilator chamber and an associated patient chamber communicating with the ventilator chamber through a gas permeable filter mounted between the ventilator chamber and the patient chamber. This filter forms a passive humidifier which is operable in use to capture and reflect heat and moisture received from a patient back to the patient. The ventilator chamber has a ventilator connector port for connection to a ventilator. The patient chamber has a patient connector port for connection to a patient breathing tube. A humidity generating device is integrated in the housing and is operable to control the humidity of air delivered from the patient chamber through the patient connector port to a patient and provides for active humidification of the breathing air. The humidity generating device, an air flow sensor, a temperature sensor and a ceramic heater plate of the device are all connected to an associated controller which regulates operation of the humidity generating device and heater plate to maintain air at a desired temperature and humidity for delivery from the patient chamber to a patient.

An electronic aerosol safety system including at least one aerosol safety sensor for measuring or sensing parameters of a target in an aerosol stream and a warning device in communication with the sensor, wherein the warning device can provide a user with safety and efficacy information. There is also provided a method of increasing the safety of an aerosol delivery device by attaching or integrating the electronic aerosol safety system into an aerosol delivery system, monitoring the aerosol produced by the aerosol delivery device by detecting preset parameters using the electronic aerosol safety system and triggering a notification to a user of the aerosol delivery device, wherein the triggering occurs upon detection of a deviation from the preset parameters.

A gas analyzer for measuring a respiratory gas component includes an emitter that transmits infrared (IR) radiation through a measurement chamber containing respiration gas, and at least one IR detector configured to receive at least a portion of the IR radiation transmitted through the measurement chamber and to generate radiation measurement data based on the received IR radiation. A light source is configured to emit light onto a color indicator, wherein the color indicator is one of a predefined set of colors. A color detector is configured to detect light reflected by a color indicator so as to identify color information. The controllers configured to determine a respiratory gas component concentration within the measurement chamber based on the color information and the radiation measurement data.

Systems and methods are provided for delivering anesthetic agent to a patient. In one embodiment, an anesthetic vaporizer includes a vaporizing chamber configured to hold a liquid anesthetic agent, and an inductive heating element positioned exterior to the vaporizing chamber and housed within a gas-tight barrier, the inductive heating element operated to selectively heat a target.

A lung simulator for partial simulation of functions of a lung, comprising at least one gas loop which is connected to a ventilator which is configured to convey a breathing gas into and/or out of the gas loop at least temporarily. The lung simulator comprises at least one device for setting the O2 concentration of the breathing gas in the gas loop, at least one device for setting the CO2 concentration of the breathing gas in the gas loop and at least one device for simulating a mechanical lung movement.

The present disclosure generally relates to systems and methods for delivery of therapeutic gas to patients, using techniques to compensate for disruptions in breathing gas flow measurement, such as when breathing gas flow measurement is unavailable or unreliable. Such techniques include using historical breathing gas flow rate data, such as moving average flow rates, moving median flow rates and/or flow waveforms. At least some of these techniques can be used to ensure that interruption in therapeutic gas delivery is minimized or eliminated.

The present disclosure generally relates to systems and methods for delivery of therapeutic gas to patients, using techniques to compensate for disruptions in breathing gas flow measurement, such as when breathing gas flow measurement is unavailable or unreliable. Such techniques include using historical breathing gas flow rate data, such as moving average flow rates, moving median flow rates and/or flow waveforms. At least some of these techniques can be used to ensure that interruption in therapeutic gas delivery is minimized or eliminated.

The preferred embodiment of the invention provides a gas generator comprising an ion membrane electrolytic cell and an atomized/volatile gas mixing tank. The ion membrane electrolytic cell comprises an ion exchange membrane, a cathode chamber and an anode chamber. An anode electrode is set in the anode chamber, and a cathode electrode is set in the cathode chamber. The ion exchange membrane is set between the anode chamber and the anode chamber. When water is electrolyzed by the ion membrane electrolytic cell, oxygen is generated by the anode electrode and hydrogen is generated by the cathode electrode. The atomized/volatile gas mixing tank coupled to the ion membrane electrolytic cell accepts the hydrogen generated from the ion membrane electrolytic cell and generates an atomized gas to mix with the hydrogen for generating a healthy gas.

Gas delivery devices include different examples of nitric oxide (NO) generating systems. Each example of the NO generating system includes a solid, light sensitive NO donor, and a light source that is operatively positioned to selectively expose the solid, light sensitive NO donor to light in order to generate NO gas.

Described are methods for maintaining or improving activity levels in patients lung-related conditions.