The invention relates to an installation (40) for supplying therapeutic gas, comprising a source (3) of therapeutic gas, a gas delivery apparatus (1) and a respiratory interface (10). The gas delivery apparatus (1) comprises a deformable reservoir fed with gas, a control unit with microprocessor which controls a valve device for controlling the flow rate of gas, a pressure sensor configured to perform gas pressure measurements at the respiratory interface (10) and to supply the gas pressure measurements to the control unit, a flow rate sensor to measure the flow rate of gas supplied and to supply the gas flow rate measurements to the control unit, and alarm means. The control unit is configured to estimate the leaks at the respiratory interface on the basis of the measurements of pressure and of flow rate, in order to ensure a correct concentration of the therapeutic gas in the respiratory interface.

A high flow therapy system for delivering heated and humidified respiratory gas to an airway of a patient includes a respiratory gas flow pathway for delivering the respiratory gas to the airway of the patient by way of a non-sealing respiratory interface; wherein flow rate of the respiratory gas is controlled by a microprocessor, a mixing area for mixing a first gas and a second gas in the respiratory gas flow pathway, a humidification area downstream of the mixing area and configured for humidifying respiratory gas in the respiratory gas flow pathway, and a heated delivery conduit for minimizing condensation of humidified respiratory gas.

A fluid delivery system provides fluid, such as supplement oxygen, to a patient in response to inhalation. The fluid delivery system includes a valve assembly that is triggered by sensing onset of inspiration by measuring a change in temperature of air flow in a nasal or oral cannula, mask or helmet.

A respiratory ventilator device is described herein. The respiratory ventilator device includes an inhaled air assembly and a pneumatic compressed air assembly. The inhaled air assembly includes an injector diaphragm housing including a flexible silicone rubber diaphragm dividing an interior volume into an inhalation air chamber containing inhalation air and a compressed air chamber for containing compressed air. The pneumatic compressed air assembly operates in a compression phase delivering compressed air into the compressed air chamber to inflate the flexible silicone rubber diaphragm to reduce a volume of the inhalation air chamber and channel the inhalation air to a patient respiratory circuit, and operates in an expansion phase removing compressed air from the compressed air chamber to deflate the flexible silicone rubber diaphragm to increase the volume of the inhalation air chamber and receive the inhalation air from the supply of oxygenated air.

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 invention relates to stabilized and NO.sub.2-inhibited nitric oxide generating gels for inhaled nitric oxide therapy, for the treatment of bacterial, viral or fungal conditions, including the formulas for the gels with new stabilizing ingredients/agents, together with delivery instructions that can permit self-administration of the gas, new dosage protocols for the use of the nitric oxide gas, and new drug concentrations for enhanced effectiveness. Other implementations are described.

The invention refers to a device and a method for the dynamically sealing intubation of a hollow organ, comprising or using a tube in the form of a shaft that can be inserted into the hollow organ, with a primary lumen to provide access through or to the hollow organ in question, and comprising an intracorporeal sealing balloon, which surrounds a distal region of the shaft of said tube in the manner of a cuff for the purpose of sealing it against the hollow organ, wherein one or more secondary lumens for filling said intracorporeal sealing balloon are integrated into the wall of at least a proximal region of said shaft, wherein, within each cross-sectional plane that is intersected perpendicularly by the local longitudinal direction of the device, the following applies for the overall interior cross-section Q1 of the primary lumen and the sum Q2 of the interior cross-sections of all secondary lumens:

Q2/(Q1+Q2)≥0.06,

wherein at an extracorporeal filling tube, which communicates with all secondary lumens, a control device is provided in order to keep the pressure within the intracorporeal sealing balloon nearly constant in such a way that a) when the volume of the hollow organ increases, a corresponding amount of the filling medium is forced to flow into the intracorporeal sealing tube in order to increase the volume of the intracorporeal sealing tube accordingly, and b) when the volume of the hollow organ decreases, a corresponding amount of the filling medium is allowed to flow out of the intracorporeal sealing tube in order to decrease the volume of the intracorporeal sealing tube accordingly.

Systems and methods for increasing accuracy of the fraction of inspired oxygen (FiO2) in delivered breathing gases. In an aspect, the technology relates to a blower-based ventilation system. The system includes a blower; an oxygen flow valve; a processor; and memory storing instructions that, when executed by the processor causes the system to perform a set of operations. The set of operations include, based on a target oxygen concentration level, determining a target ambient air flow rate and a target oxygen flow rate; measuring a flow rate of ambient air generated by a blower; measuring a flow rate of oxygen from an oxygen flow valve; determining a synchronization error; and based on the synchronization error, adjusting operation of at least one of the blower or the oxygen flow valve.

A high flow therapy system for delivering heated and humidified respiratory gas to an airway of a patient includes a respiratory gas flow pathway for delivering the respiratory gas to the airway of the patient by way of a non-sealing respiratory interface; wherein flow rate of the respiratory gas is controlled by a microprocessor, a mixing area for mixing a first gas and a second gas in the respiratory gas flow pathway, a humidification area downstream of the mixing area and configured for humidifying respiratory gas in the respiratory gas flow pathway, and a heated delivery conduit for minimizing condensation of humidified respiratory gas.

Methods and systems are provided for delivering anesthetic agent to a patient. In one embodiment, a liquid anesthetic agent container includes a base region, an interior of the base region configured to hold liquid anesthetic agent and a capillary force vaporizer (CFV). The CFV can be configured to couple to a vapor reservoir of a patient breathing circuit to supply vaporized anesthetic agent vaporized by the CFV to a patient, the CFV comprising a heating element, a temperature of the heating element controllable by a driver of the patient breathing circuit based at least in part on a pressure of the vapor reservoir as measured by a pressure sensor coupled to the vapor reservoir.