A mask system includes a cushion for a mask that seals at its upper extent in a region of the nose that is generally above the tip of the nose or pronasale, and extends across a portion of the cartilaginous framework, alar or flares of the patient's nose, e.g., not extending over or across the bone nasal bone of the patient's nose.

A sound providing method using an earphone set and an earphone set are provided. The sound providing method using the earphone set includes simultaneously providing a first sound wave to a left ear of a user by using a left ear earphone of an earphone set and a second sound wave to a right ear of the user by using a right ear earphone of the earphone set. There is a frequency difference between a first frequency of the first sound wave and a second frequency of the second sound wave. The frequency difference automatically and cyclically changes along with time.

Systems and methods for treating a plurality of tissue sites include a multi-port therapy unit. The multi-port therapy unit includes a plurality of patient-side ports each fluidly coupled to a plurality of conduits and a fluid reservoir fluidly coupled to the plurality of ports. A plurality of pressure sensors are associated with the plurality of patient-side ports to determining a pressure associated with each conduit. A controller is operatively coupled to the plurality of pressure sensors to receive treatment pressure data, monitor pressure for each pressure sensor of the plurality of pressure sensors, and signal an alarm condition if the pressure is outside of a pre-selected range. The system includes a reduced-pressure source fluidly coupled to a dressing at each tissue site through the multi-port therapy unit.

Described embodiments include a therapeutic oxygen supply apparatus. The apparatus includes at least two components, including an intake manifold component configured to receive concentrated oxygen, a compressor component configured to compress concentrated oxygen, an oxygen tank component configured to store concentrated oxygen, a patient manifold component configured to supply concentrated oxygen, or a control structure component configured to route a flow of concentrated oxygen. A sensor circuit acquires data indicative of a respective operational state of the at least two components. A rule-based engine selects a next operational state of a component in response to (i) the acquired data indicative of the respective operational states of the at least two components and (ii) a rule database having at least one rule responsive to an objective providing a therapeutic flow of oxygen to the patient. A configuration manager circuit generates a control signal implementing the selected next operational state.

A device, system, and method for isolating a ventilator from one or more patients in which the delivery conditions of gas delivered to an isolation device from a ventilator may drive the delivery of breathing-gas delivered to one or more patients, the breathing-gas having the same or different delivery conditions. In one embodiment, an isolation device may have a housing and a movable partition. The movable partition may be joined to the housing, The movable partition may have a patient side on a first side of the partition and an actuating side on a second side of the partition. The isolation device may include an inlet pressure regulator on the actuating side and/or an exhaust pressure regulator on the patient side. These regulators may alter the delivery conditions (including, but not limited to, pressure and volume) of breathing-gas delivered to a patient.

An electronic vaping device is provided including a power supply portion comprising a power supply, an atomizer/liquid reservoir portion comprising a liquid reservoir storing a liquid, and an atomizer adapted to atomize the liquid stored in the liquid reservoir when operated by the power supply. The atomizer is adapted to float on the surface of the liquid in the liquid reservoir.

A method includes initiating an accelerated daily light and darkness cycle experience at a first color palette position within the accelerated daily light and darkness cycle that corresponds to a current time at a destination geographic location that a user will travel to. The accelerated daily light and darkness cycle experience is executed at a second color palette position within the accelerated daily light and darkness cycle that corresponds to the current time at the destination geographic location of the user. The accelerated daily light and darkness cycle is less than six minutes and includes projecting a dark virtual sky in a digital space, transitioning the dark virtual sky to a dawn virtual sky in the digital space, altering the dawn virtual sky to introduce a daytime virtual sky in the digital space and modifying the daytime virtual sky to produce a dusk virtual sky in the digital space.

A ventilator uses teeth of gear to operate up to eight or more bellows. A common drive shaft can be used to operate a stack of multiple such gears, which collectively operate up to 40 or more bellows. Valves can be used to control flow from different ones of the bellows to individual recipients.

A stand-alone chamber or multi-chamber inhalation system has at least two alternative vaporized test liquid supply systems for passive or self-administered delivery of vaporized test fluid and air to one or more test chambers, which can be passive or restraint chambers, based on operator selection of delivery on and off times in a passive mode or actuation of an actuator in the chamber by a test animal in a self-administered mode. In one case, a multiple inhalation chamber system has two or more separate test fluid delivery systems and provides options for selective passive uniform drug delivery to multiple chambers or selective delivery of two or more different drugs to different groups of chambers from different delivery systems so that two different drugs or different concentrations of delivered drugs can be tested simultaneously.

Disclosed herein are improved devices, systems, and methods for the expression and collection of breast milk, such as human breast milk. A breast shield assembly for expression of breast milk may comprise a breast interface and an actuatable assembly interface fluidly coupled with a tube, wherein the breast interface is configured to engage the breast and the actuatable assembly interface is configured to removably couple to an actuatable assembly. The breast shield assembly may comprise an enclosed fluid reservoir extending between the breast interface and the actuatable assembly interface, the fluid reservoir physically separated from the expressed breast milk and filled with a driving fluid comprising a liquid. The breast shield assembly may further comprise a fill port configured to allow addition or removal of the driving fluid to or from the fluid reservoir.