A safety breathing apparatus has a sensor for measuring the difference in pressure between two point 1a, 1b in the gas delivered to a head unit 9. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.

A sedation device has a housing divided internally into a ventilator chamber and an associated evaporator chamber which overlap and are separated by a filter mounted between the chambers and forming a common gas-permeable dividing wall between the chambers. An inlet port is provided at one end of the ventilator chamber at a top of the housing for connection to a patient ventilator in use. An outlet port on the evaporator chamber can be connected via a breathing tube to a patient. An evaporator is mounted within the evaporator chamber for delivery of a volatile sedative into the evaporator chamber during use.

A heated conduit is configured to connect to and receive pressurized breathable gas from a respiratory unit. The heated conduit includes a first cuff that includes an air inlet portion and an electrical connector portion that is adjacent the air inlet portion and comprises three electrical terminals that are configured to engage a respiratory unit electrical connector. The heated conduit also includes a second cuff comprising an air outlet and a flexible tube portion with a first end connected to the first cuff, a second end connected to the second cuff, and a spiral rib structure wrapped around a central lumen. A grouping of wires is supported within the spiral rib structure of the flexible tube portion and include a pair of heating wires and a signal wire. A sensing device extends into the gas flow path from an interior surface of the second cuff and is configured to output a signal indicative of the condition inside the heated conduit.

A stand-alone continuous positive airways pressure, CPAP, apparatus having a face-mask and a connected electro-mechanical device to supply air to the face-mask is disclosed. The electro-mechanical device includes a pneumatic channel for flowing air to be delivered to the face mask and a control unit for managing the air pressure of the air inside the pneumatic channel. The CPAP apparatus includes a turbine fan, located in the electro-mechanical device housing, connected to the control unit for pressurizing atmospheric air. The pneumatic channel includes an inlet portion located upstream of the turbine fan to receive atmospheric air, and an outlet portion located downstream of the turbine fan to deliver the pressurized air to the face-mask through an outlet opening. The pneumatic channel also longitudinally extends from the inlet portion to the outlet portion.

The present invention provides new devices, systems, and methods for delivering enriched oxygen to recipients (e.g., chronically ill patients, such as COPD patients). One aspect is a more efficient portable oxygen concentrator that is configured to deliver an enriched oxygen airflow having a significantly lower overall oxygen concentration and greater overall volume administered as compared to currently marketed or known portable oxygen concentrators. Administering the lower oxygen concentration at higher volumes allows for the present portable oxygen concentrators to deliver an equivalent number of moles of oxygen as administered by traditional portable concentrators while increasing the efficiency of the system and the ability of the system to maintain the therapeutic level of oxygen concentration for a longer period.

A device is provided that humidifies breathing gas. The device has a chamber with an inlet and an outlet. A chemical heater is positioned within the chamber and a trigger activates the heater. The chamber can be a conduit with an inner wall and an outer wall with a reservoir defined therebetween. The chemical heater can be positioned within the reservoir.

This disclosure describes systems and methods for managing a move of a patient being monitored or treated by a medical system, such as a medical ventilator. The disclosure describes a novel approach for preventing a patient from being moved from a first location to second different location that is connected to a monitoring and/or treatment system, before all of the necessary hoses have been disconnected from the patient. Further, the disclosure describes a novel approach of ensuring that all of the necessary hoses are reconnected to a patient being monitored or treated by a monitoring and/or treatment system after being moved from the first location to the second different location.

A system provides warm, humidified pas to a patient via a patient interface. Horizontal connections can be used between the humidification chamber and conduit. To reduce the likelihood of condensate flowing back to the humidification chamber, or dead space or gases recirculation regions occurring within the gases flow path, a raised portion is positioned inside of the flow path to improve flow characteristics and to provide a barrier for condensate back flow. The raised portion also reduces the amount of condensate that is formed in the system and provides better flow characteristics for sensing purposes.

A mechanical ventilator is provided that includes a dashboard display identifying a patient's current ventilatory status within a global or universal ventilatory mechanics map. This dashboard display is dynamically updated with the patient's condition, and shows trends in the patient's ventilation over time. The map identifies suggested safe and unsafe regions of ventilation for the patient, and the ventilator can display informational texts, trigger auditory and/or visual alarms, and transmit alarm communications in response to determining that the patient is approaching or has entered an unsafe region.

A system for detecting manual ventilation and selectively delivering a high flow of oxygen. The system comprises a source of compressed oxygen coupled to a first lumen of a nasal cannula, with an oxygen flow control valve coupled to a processor to control the flow of oxygen to the nasal cannula. A second lumen of the nasal cannula is in connection with a pressure sensor and the pressure sensor in connection with the processor. The processor may receive the pressure values and be programmed to determine when manual ventilation has occurred, and send a signal to the oxygen flow control valve to send a high flow of oxygen in response to manual ventilation.