Numerous aspects of communication devices, methods, and systems are described in this application. One aspect is an apparatus comprising an energy generator comprising: a plurality of generator elements operable to output a plurality of different energy types in a signal direction toward a physiologic tissue; a printed circuit board that mechanically supports and electrically connects the plurality of generator elements to each other; each generator element of the plurality of generator elements being independently operable, when the energy generator is positioned relative to the physiologic tissue, to communicate with different nerves associated with the physiologic tissue by outputting a different portion of an energy signal in the signal direction toward the physiologic tissue with one energy type of the plurality of different energy types.

Methods and apparatus infer or indicate sleep stage(s) of a patient from a respiratory flow rate signal of the patient. The method may include applying a plurality of detection pathways to a signal representing a respiratory flow rate of the patient, wherein each detection pathway is configured to generate start events and end events indicating start times and end times of episodes respectively of a corresponding sleep stage, wherein each start event and each end event has a priority; and combining the start events and end events based on their priorities to produce an indication of the sleep stage of the patient. The apparatus may include a sensor configured to generate a signal representing a property of a flow of air within a patient interface; and a processor configured to implement a method of inferring a sleep stage of the patient from the signal.

Embodiments herein relate to ear-wearable systems and devices that can detect and/or take actions to prevent or alleviate stress related conditions such as post-traumatic stress disorder (PTSD) and the like. In an embodiment, an ear-wearable stress therapy system is included having a control circuit, a first sensor package, a microphone, and an electroacoustic transducer, wherein the electroacoustic transducer is in electrical communication with the control circuit. The ear-wearable stress therapy system can be configured to initiate administration of desensitization and reprocessing (DR) therapy to a device wearer. Other embodiments are also included herein.

A mist inhaler device (200) for generating a mist for inhalation by a user. The device includes a mist generator device (201) and a driver device (202). The driver device (202) is configured to drive the mist generator device (201) at an optimum frequency to maximise the efficiency of mist generation by the mist generator device (201).

A blood treatment machine includes a blood pump; an arterial line in fluid communication with the blood pump; a venous line; and a heartbeat evaluation system including (i) a first electrode coupled to the arterial line or to a patient, (ii) a second electrode coupled to the venous line, (iii) electronic circuitry communicating electrically with the first electrode and the second electrode to sense an electrical heartbeat signal generated by the patient, and (iv) signal processing configured to use the sensed heartbeat signal to calculate at least one of (a) heart rate, (b) respiration, (c) stroke volume, (d) cardiac output, or (e) central blood volume.

Systems and methods disclosed herein relate to augmenting a treatment modality. A method of providing stimulation therapy to a user may include generating transcutaneous vibratory output comprising one or more variable parameters, subjecting the user, in conjunction with the transcutaneous vibratory output, to a treatment modality, wherein the one or more variable parameters of the transcutaneous vibratory output comprise at least one of a perceived pitch, a perceived beat, a perceived intensity, an envelope, or a base tone, and at least one of selecting or modifying the one or more variable parameters of the transcutaneous vibratory output to augment the treatment modality.

Systems and methods disclosed herein relate to augmenting a treatment modality. A method of providing stimulation therapy to a user may include generating transcutaneous vibratory output comprising one or more variable parameters, subjecting the user, in conjunction with the transcutaneous vibratory output, to a treatment modality, wherein the one or more variable parameters of the transcutaneous vibratory output comprise at least one of a perceived pitch, a perceived beat, a perceived intensity, an envelope, or a base tone, and at least one of selecting or modifying the one or more variable parameters of the transcutaneous vibratory output to augment the treatment modality.

A reservoir configured to retain a volume of liquid for use in an apparatus for humidifying a flow of pressurised air comprises a base portion and a lid portion. The reservoir may be configured to improve its level of thermal contact to the heater plate using the flow of pressurised air. The reservoir may be configured to improve thermal contact between the reservoir and the heater plate by pre-compression upon engagement of the reservoir with the humidifier. The reservoir may comprise a removable intermediate portion, which may include the inlet tube and/or the outlet tube, for improved access for cleaning. The reservoir may also be configured to prevent overfilling. Overfill prevention features in the reservoir may include defined flow egress paths and/or formation of air locks.

A reservoir configured to retain a volume of liquid for use in an apparatus for humidifying a flow of pressurised air comprises a base portion and a lid portion. The reservoir may be configured to improve its level of thermal contact to the heater plate using the flow of pressurised air. The reservoir may be configured to improve thermal contact between the reservoir and the heater plate by pre-compression upon engagement of the reservoir with the humidifier. The reservoir may comprise a removable intermediate portion, which may include the inlet tube and/or the outlet tube, for improved access for cleaning. The reservoir may also be configured to prevent overfilling. Overfill prevention features in the reservoir may include defined flow egress paths and/or formation of air locks.

A respiratory flow therapy apparatus including a sensor module can measure a flow rate of gases or gases concentration provided to a patient. The sensor module can be located after a blower and/or mixer. The sensor module can include at least an ultrasonic transmitter, a receiver, a temperature sensor, a pressure sensor, a humidity sensor and/or a flow rate sensor. The receivers can be immersed in the gases flow path. The receivers can cancel delays in the transmitters and improve accuracy of measurements of characteristics of the gases flow. The receivers can allow for detection of a fault condition in a blower motor of the apparatus.