A nebulizer assembly for a respiratory device is provided having a housing defining a chamber. The housing also has a nebulizer port configured to receive a nebulizer to discharge atomized medication into the chamber. An outlet of a handle is coupled to the inlet of the housing. A hose is coupled to an inlet of the handle. A patient interface is coupled to the outlet of the housing. Air flows from the hose to the patient interface via the handle and the housing. The air mixes with the atomized medication within the chamber.

A system for stimulating body tissue may include a stimulation lead, sensors, and a control unit. The stimulation lead may include one or more energy sources. The control unit may include a processor and non-transitory computer readable medium, and an interface (e.g., touch screen interface) for receiving user inputs and communicating information to the user. The sensors may be configured to provide impedance measurements to the control unit. The control unit may calculate lung gas distributions and/or generate an image modeling lung gas distributions. Stimulation delivered by the stimulation may be adjusted based on the impedance measurements.

A positive pressure airway device for providing resistance in an air pathway for a patient exhaling. The device includes a central tube region, a inspiratory air passageway for passing air into the central tube region when a patient breathing through the device inhales, and an expiratory air passageway for passing air out of the central tube region when a patient breathing through the device exhales, A valve in the expiratory air passageway allows air to flow out only when a patient using the device exhales with an expiratory air pressure greater than a selected pressure, and includes a stopper and a coil spring with an interior portion that is free from any structure that would inhibit the “side-to-side” movement of the spring within the housing. The stopper has a cone-shaped air-stopping surface providing a valve angle that is different from the valve-seat angle so that either laminar or oscillating flow may be obtained.

Disclosed is a bioimpedance measurement system: A stabilized high frequency current generator is connected to PadSet electrodes via a Patient Cable. Electrodes are connected to an adaptive circuit that conditions the resulting voltage signal and converts it to digital form. Firmware performs signal acquisition and relays data to the device.

A respiratory therapy apparatus includes a rocker mechanism (101, 110, 111, 112) that provides an oscillating resistance to expiration. The apparatus also includes an air entrainment arrangement (200) at its air inlet (3) having a ring orifice (214) connected via a gas inlet (4) to a source (119) of oxygen at elevated pressure. The oxygen emerging around the ring orifice (214) entrains ambient air and supplies this as a continuous flow of respiratory gas to the patient interface (2) to provide a positive airway pressure.

Methods and systems for delivery of pulsated air to a user using a device including a flow generator to generate a continuous air flow, a first actuator comprising a pulsated flow delivery mechanism configured to generate a pulsated air flow from the continuous air flow based on a pre-determined duty cycle to vary a frequency of the pulsated air flow, a user interface configured to generate and deliver vortices of pulsated air to the user at the frequency of the pulsated air flow, and a set of tubing to couple the flow generator, the first actuator, and the user interface.

Devices and systems provide methods of detecting a severity change in respiratory insufficiency (RI) or chronic obstructive pulmonary disease (COPD) condition of a patient. In an example embodiment, a detection monitoring device determines one or more severity change indicators based on a measure of supplied pressure or other representative measure determined by the device. The supplied pressure may optionally be determined during pressure treatment that satisfies a target ventilation. The supplied pressure or representative data may be compared to one or more thresholds that are selected to represent a change in the condition of the RI or COPD patient such as an exacerbation of a prior condition. Results of the comparisons may trigger one or more warnings or messages to notify a patient or physician of a pending change to the patient's RI or COPD condition so that the patient may more immediately seek medical attention to treat the condition.

A breathing assistance device includes a gas regulating valve. The gas regulating valve is operated by a linear actuator. The linear actuator may include a movable member that moves an obstruction member between an open position and a closed position. The linear actuator is isolated from a gas flow path through the valve.

The present technology is directed to ventilator systems that can provide both ventilation therapy and oxygen therapy. The systems described herein may include a ventilation assembly that can provide inspiratory gas to a patient circuit and an oxygen assembly that can provide pulses of oxygen to an oxygen delivery circuit. In some embodiments, the oxygen delivery circuit is distinct from the patient circuit. For example, the patient circuit can include a corrugated conduit coupled a ventilation mask, and the oxygen delivery circuit can include a nasal cannula. The ventilation mask can be positioned over the nasal cannula so that the patient can receive both the inspiratory gases and the pulses of oxygen.

A respiratory acoustic device is provided that is easy to operate and transport. The device delivers vibrations artificially to the lungs and airways to fluidize mucus adhering to the airways and promote its discharge. A respiratory acoustic device 1 is provided with a housing 10, and a mouthpiece 20 that is in communication with the housing 10. The housing 10 has a reflecting end 12 for reflecting air that has been blown in from the mouthpiece 20 and an open end 13 through which air that has been blown in from the mouthpiece 20 can escape. If a sudden exhalation such as a cough is blown into the housing 10 through the mouthpiece 20, the device causes the noise due to said exhalation to resonate with the oral and lower airway cavities, and vibrate the user's lungs and airways with the low frequency acoustic shock waves generated therein.