A respiratory filter and condensate management apparatus is provided for use in a breathing circuit during patient respiration. The apparatus includes a housing having an air inlet port for receiving a flow of respiratory air, and an air outlet port for outputting the flow of respiratory air to a ventilator. A filter compartment is provided within the housing and includes a filter member located in a flow path of the respiratory air from the air inlet port to the air outlet port. A condensate collection compartment is provided within the housing and includes at least one reservoir and at least one self-sealing drainage port. The reservoir collects liquid formed by condensation of the respiratory air within the filter compartment, and the drainage port allows removal of the collected liquid from the reservoir while the housing remains connected to the breathing circuit.

A water tank mounting structure and a ventilation treatment apparatus for such structure. The water tank mounting structure comprises a cavity for containing a water tank and a side wall defining the cavity, wherein the side wall comprises an inner side wall spaced apart from an outer side, a first gas hole provided in the inner side wall, and a second gas hole provided in the outer side wall, both holes arranged in a staggered manner perpendicular to the side wall. The arrangement of the double-layer side wall, and the first and second gas holes in the inner and outer side walls, respectively, allows for hot gas in the cavity to be effectively removed. The staggered arrangement of the gas holes allows for water to flow downward along the side wall without invading the cavity when water enters through the second gas hole. A waterproof effect is achieved.

An apparatus for suctioning matter expelled during treatments involving an orifice of a patient; the apparatus includes a suction head, a conduit attached to the suction head and a suction device for attaching the conduit thereto, thereby putting the suction head in communication with the suction device. The conduit includes a flexible and bendable body that is easily manipulated into different positions and supports the suction head about the orifice of the patient during treatment. Preferably, the orifice is a mouth, and the treatment is a dental treatment. In this embodiment, the apparatus provides for the hands-free suction of aerosols and/or saliva and blood splatter produced from the mouth of the patient during the dental treatment.

A method for controlling fluid ratio accuracy during a dual flow injection with a powered injection system is described. The method includes predicting a first capacitance volume of a first syringe comprising a first medical fluid and a second capacitance volume of a second syringe comprising a second medical fluid with a first capacitance correction factor and a second capacitance correction factor, respectively, selecting a ratio of the first medical fluid and the second medical fluid to be administered to a patient in the dual flow injection, determining a relative acceleration ratio of a first piston of the first syringe and a second piston of a second syringe based on the predicted first capacitance volume and the predicted second capacitance volume, wherein the relative acceleration ratio is selected to maintain the selected ratio of the first medical fluid and the second medical fluid during the dual flow injection, and injecting a mixture of a first medical fluid and a second medical fluid having the selected ratio with the powered injection system.

The mouthpiece for an aerosol-generating article comprises a housing with an inlet end, configured to allow an aerosol to flow into the mouthpiece, an outlet end, configured to allow the aerosol to flow out of the mouthpiece, and an aerosol flow path extending between the inlet and the outlet end. The mouthpiece is formed such that the flow direction of the aerosol is reversed at least once between the inlet and the outlet end. The invention also concerns an aerosol-generating system comprising an aerosol-generating device and the mouthpiece, as well as a method for assembling the mouthpiece.

Vaporizer ovens and related vaporizers are provided. The vaporizer oven can comprise a body comprising a vaporizing chamber with an opening and a removable closure member that can engage the body to close the opening. The body can comprise a first locking component and the closure member can comprise a second locking component that interlocks with the first locking component. In some embodiments, a biasing element can be disposed in one of the body or the closure member to exert a biasing force to maintain the closure member in a locked position. A related vaporizer can comprise a housing that receives the vaporizer oven. Related methods for making a vaporizer oven and a vaporizer are also provided.

An aerosol-generating system including a cartridge is provided, the cartridge including a liquid storage portion including a housing configured to hold a liquid aerosol-forming substrate, the housing having an opening; and a heater assembly including at least one heater element fixed to the housing and extending across an opening of the housing, wherein a width of the at least one heater element of the heater assembly is smaller than a width of the opening of the housing. The heater element may be spaced from a periphery of the opening, leading to more efficient heating and aerosol production.

Systems and methods for generating nitric oxide are disclosed. A nitic oxide (NO) generation system includes at least one pair of electrodes configured to generate a product gas containing NO from a flow of a reactant gas; and a controller configured to regulate the amount of nitric oxide in the product gas produced by the at least one pair of electrodes by utilizing duty cycle values of plasma pulses selected from a plurality of discrete duty cycles to produce a target rate of NO production based on an average of discrete production rates associated with each of the plurality of discrete duty cycles.

A humidification tank and a ventilation treatment device are provided. The humidification tank includes a tank body having a cavity, a connector pipe inserted into the cavity, and at least two branch pipes communicated with an outlet end of the connector pipe. The branch pipes can provide airflow towards different directions so that gas reaches more positions in the cavity, the existence of a position to which the gas cannot be blown in the cavity is avoided, the occurrence of a dead zone of airflow is avoided. The fluidity of gas inside the cavity is improved, and a gas flowing path is lengthened, thus improving the humidifying effect of gas.

A humidifier includes a humidifier tub including an air inlet and an air outlet. The air outlet may have an exit port positioned in a plane disposed below the air inlet. A base plate is provided to the bottom of the humidifier tub. The base plate and humidifier tub define a water chamber adapted to receive a volume of water. The humidifier tub may include a guidance structure adapted to direct air entering the humidifier tub via the air inlet to swirl downwardly and around within the humidifier tub reaching the water surface before exiting the exit port. The tub may include a structure to prevent the inadvertent entry of water from the tub to the flow generator.