The present disclosure relates to aerosol delivery devices comprising a power unit and a cartridge that is configured for engagement with the power unit. In particular, the cartridge can be configured for rotation about a longitudinal axis thereof so as to be insertable into a chamber of the power unit in a plurality of different orientations. Further, the aerosol delivery device can include processing circuitry that can be configured for detection of the cartridge orientation and execution of a control function assigned to the respective orientation.

A super enriched personal oxygen concentrator system that discards argon as waste, including a personal oxygen concentrator operatively attached to a first bed for absorbing nitrogen and second bed for absorbing oxygen, and an argon waste outlet operatively attached to the first and second beds for eliminating argon from the system. A method of using the system of the present invention, by absorbing nitrogen from compressed air from a POC with a first bed, absorbing oxygen with a second bed, discarding unabsorbed argon from the compressed air as waste, desorbing enriched oxygen product, and providing a 99% oxygen product. A fluid supply warning and communication system, wherein a primary fluid reservoir is connected to the personal oxygen concentrator system. A method of using the fluid supply warning and communication system.

An apparatus for pressurizing one or more airways of a user, including: a dental arch mold configured to receive a plurality of teeth, a port which may be at a front face of the dental arch mold, a first nasal pillow, a second nasal pillow, a multi-output air regulator, and a plurality of sensors. The multi-output air regulator and sensors allow the airway pressurization device to sense the pressures in as well as be in independent fluid communication with the port of the dental arch, the first nasal pillow, and the second nasal pillow, such that an equalization of pressures, or a determined pressure differential between each may be obtained.

An example medical system includes a hemodialysis device configured to receive blood from vasculature of a patient via an arterial line and to deliver blood to the vasculature of the patient via a venous line. The medical system includes a hematocrit sensor configured to generate a signal indicative of a hematocrit level of blood in at least one of the arterial line or the venous line. The medical system also includes processing circuitry configured to determine a change in blood volume of the patient over time based on the signal indicative of the hematocrit level, determine a threshold blood volume reduction over time for the patient, compare the change in the blood volume of the patient over time to the threshold blood volume reduction over time, and based on the comparison, generate an indication of vascular access recirculation.

A computer-implemented method comprises providing a fluid circuit comprising fluid pathways configured to mount and associate with a durable processing device comprising a pressure sensor in communication with a controller and a fluid pathway. A container is connected to the pressure sensor and may receive a volume of fluid. A change in pressure values between a first and second time is measured from when the volume of fluid is not in communication with the pressure sensor to when the volume of fluid is in communication with the pressure sensor, the volume of fluid within the container or a presence or absence of a fluid connection to the fluid pathway based on the change in pressure values is determined, and a response action is executed if the volume of fluid within the container is not within an authorized volume range for the time period, or if a fluid connection is unauthorized.

Vaporization element, device and method for vaporizing phyto material. A hollow member defining a fluid pathway is positioned proximate a heating element with a phyto material contact surface. An electrical heater is positioned on the opposite side of the phyto material contact surface. Phyto material or extract deposited on the phyto material contact surface can be vaporized by heat from the electrical heater. The vapor can enter the fluid pathway and pass through the hollow member to an inhalation aperture. The electrical heater may be powered by an electrical power source provided in a support unit. The hollow member can be mounted to a vapor processing device that cools and/or filters the vapor before it reaches the inhalation aperture. The support unit may have securement mechanisms to attach the vapor processing device to the vaporization device.

A negative pressure wound therapy device includes a piezoelectric pump, a state detector configured to detect a state of the pump, and a control circuit configured to transmit a first control signal for a first period having a first RMS voltage greater than or equal to a threshold voltage at which driving the pump for a second period greater than the first period can cause the pump to emit sound at a magnitude greater than a sound threshold; receive a first indication of the state; determine if the pump is in a leak condition; transmit, responsive to the pump not being in the leak condition, a second control signal having a second RMS voltage less than the first RMS voltage; and transmit, responsive to the pump being in the leak condition, a third control signal having a third RMS voltage greater than the second RMS voltage.

A ventilator including a housing; a gas inlet port disposed in the housing and adapted to be coupled to a gas source to receive a flow of gas; a valve assembly coupled with the gas inlet port for controlling flow of gas from the gas inlet port to a gas outlet port disposed in the housing and adapted for being coupled to a patient interface to fluidly couple the gas outlet port to the airway of a patient; a controller module disposed in the housing, the controller module comprising a controller operatively coupled with the valve assembly to control operation of the valve assembly; an airway pressure sensor positioned between the valve assembly and the patient interface to measure air flow output into flowing into the airway of the patient; wherein the pressure sensor is operatively connected to the controller module to control the operation of the valve assembly in response to changes in air flow output measured by the airway pressure sensor during use.

A patient interface is disclosed that includes: a plenum chamber pressurisable to a therapeutic pressure; a seal-forming structure joined to the plenum chamber and comprising a nasal portion, an oral portion, and at least one hole configured to deliver a flow of air at said therapeutic pressure to at least the patients nares in use, the seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patients respiratory cycle in use; a vent comprising a plurality of holes configured to allow a continuous vent flow from an interior of the plenum chamber to ambient; a positioning and stabilising structure comprising at least one tie and being configured to hold the seal-forming structure in a therapeutically effective position on the patient's head in use; and a textile portion configured to contact the patients face.

The present disclosure is directed to a pre-filled container configured to store a pre-defined volume of a vaporizable liquid composition. The present disclosure is also directed to personal vaporizing devices for using such containers. In one embodiment, the pre-filled container is configured to provide a vaporizable liquid composition stored therein to an ultrasonic vaporizing component via capillary action for vaporization thereof.