A respiratory therapy device comprising at least one fan unit for generating a respiratory airflow for carrying out respiratory therapy. The fan unit comprises a housing and at least one fan wheel rotatably mounted in the housing. Respiratory air is transported through a channel formed inside the housing, which housing comprises at least one structural element, which reduces the sound emission.

A syringe pump includes a lead screw, a motor, and a sliding block assembly. The lead screw has threads and the motor is coupled to the lead screw to rotate it. The half-nut housing has a half nut and a barrel cam. The half nut is disposed within the half-nut housing. The half nut has half-nut threads at an end adjacent to the lead screw void. The half nut engages or disengages with the threads of the lead screw. The half nut includes a half-nut cam-follower surface and a half nut slot. The barrel cam is disposed within the half-nut housing and engages with the half-nut cam-follower surface. The barrel cam includes a pin to fit within the half nut slot such that the barrel cam rotates between a first position and a second position to actuate the half nut between the engagement position and the disengagement position, respectively.

A drug solution administration device includes a drug solution reservoir, a drive unit, a rotation detection unit, and a control unit. The control unit counts the number of rotations of the drive unit from when a rotation sensor value reaches a blockage start threshold value until the rotation sensor value reaches a blockage detection threshold value. Further, the control unit determines that a blockage of a flow path has occurred when the rotation sensor value reaches the blockage detection threshold value, and rotates the drive unit in a direction opposite to a direction in which the drug solution is administered based on the counted number of rotations.

A circulatory support device includes a flexible cannula having a fluid outlet at a proximal end; and a pump assembly disposed at a distal end of the flexible cannula. The pump assembly includes a pump housing having a fluid inlet defined therein; a motor disposed within a distal end of the housing; and an impeller, driven to rotate by the motor, and configured to push blood toward the fluid outlet.

A device for conveying a biological material includes a body including an aperture configured to enable connection with an outside of the body and a chamber configured to store a biological material, a plurality of conveyors accommodated in the body and configured to convey the material, and a driver configured to select one of the plurality of conveyors, align the selected conveyor with the aperture, and move the selected conveyor to the outside of the body through the aperture.

A pump (34) is configured to pressurize fluid in a microvaporizer (10). The pump includes a chamber (42) bounded by a chamber wall (43) with an inlet opening (55) configured to receive fluid and an outlet opening (57) configured to discharge fluid. The chamber has a circular cross-section. The pump further includes a rotatable impeller (44) positioned within the chamber and a shaft (46) extending through a center of the impeller. The impeller is configured to rotate around the central longitudinal axis of the shaft. In addition, the shaft is offset from the center of the chamber toward the outlet opening and away from the inlet opening so that the axis of rotation of the impeller is offset from the center of the chamber. The pump has a compact design that is able to generate the pressure differential necessary to maintain the flow of fluid and is able to react quickly to meet the demand of the user.

An oxygen concentrator may have a compressor to feed a feed gas for sieve bed(s) via a first manifold, an accumulator to receive enriched air from the bed(s) via a second manifold. It may include an outer housing for the manifolds, the compressor, and the accumulator. The housing may include an access portal to a compartment therein, for removably receiving the bed(s) as a canister assembly. The first manifold may be adjacent to the compartment and have inlet coupling(s) for removably coupling respectively with inlet(s) of the canister assembly. The inlet coupling(s) may each have a first central axis. The second manifold may be adjacent to the compartment and have outlet coupling(s) for removably coupling respectively with outlet(s) of the canister assembly. The outlet coupling(s) may each having a second central axis. The first and second central axes may form any one of an obtuse, acute, or right angle.

An electronic device for producing an aerosol for inhalation has a mouthpiece and an elongate housing. The mouthpiece attaches to an upper end of the housing. The housing contains a liquid container and a mesh assembly with mesh material that vibrates when actuated for aerosolizing liquid from the container. The mouthpiece covers the mesh assembly at the upper end of the housing, and the aerosol produced by the mesh assembly may be inhaled through the mouthpiece by a person. The housing contains circuitry and a power supply, preferably are located in a lower half of the housing, for actuating vibration of the mesh material. Electrical pathways connect the mesh assembly with the circuitry and power supply. The power supply may comprise one or more batteries located at the lower end of the housing. The aerosol is produced without smoldering of the liquid and without using a compressed gas.

A patient interface comprising a cushion having a nasal plenum chamber, an oral plenum chamber, and a passage formed between the nasal and oral plenum chambers. The passage is configured to allow airflow to pass between the nasal and oral plenum chambers. The cushion also includes a valve including valve body and an adjustment structure that is positioned between the nasal chamber and the oral chamber and is movable relative to the valve body. The adjustment structure is movable between an open position that is configured to allow airflow between the nasal plenum chamber and the oral plenum chamber, and a closed position configured to limit airflow between the nasal plenum chamber and the oral plenum chamber. The adjustment structure is configured to allow airflow through a nasal vent in the closed position and is configured to limit airflow through the nasal vent in the open position.

A substance delivery device and methods to promote treatment regimen compliance. A beneficial substance and an addictive substance are administered from a device delivering the substances by a user inhaling vaporized or atomized beneficial substances and addictive substances.