A sprayer includes: a container arranged to contain liquid; a passage including a transparent window, a first opening, a second opening and a resonator, wherein when the liquid in the container is passed through the resonator via the first opening, the liquid is emitted as a gas via the second opening; and a detection unit disposed outside of the passage. The detection unit includes: a light source disposed to emit light through the light transparent window for illuminating the gas in the passage such that the gas will reflect the emitted light; an optical sensor disposed to detect a parameter of the reflected light through the transparent window; and a processor coupled to the optical sensor for stopping the resonator from generating the gas when the parameter of the reflected light is below a first threshold corresponding to a specific level of liquid within the container.

The present invention includes and provides a method of delivering a medicament to an eye of a subject in need thereof a solution, the method comprising: (a) providing droplets containing the medicament with a specified average size and average initial ejecting velocity; and (b) delivering the medicament to the eye, where the droplets deliver a percentage of the ejected mass of the droplets to the eye.

This invention is a novel aroma candle light including a light body, a water spray formation channel, an ultrasonic device and a water tank; a water spray outlet is formed on a top part of the water spray formation channel; an LED light panel is fixedly mounted at the water spray outlet; the ultrasonic device includes an ultrasonic plate, an ultrasonic plate fixing member and a silicone rubber casing; the ultrasonic plate is disposed inside the silicone rubber casing; the ultrasonic plate fixing member has a top end which is provided with a recess; the silicone rubber casing is mounted inside the recess; the silicone rubber casing has a top part which is provided with a plurality of first guiding grooves; a plurality of second guiding grooves are formed inside the recess; the ultrasonic plate fixing member is disposed at an opening at a top part of the water tank.

Disclosed is an adaptive water-level noise-reducing atomizing device, comprising a bottom shell, an upper shell cover positioned on the bottom shell, a water storage tank arranged on a top surface of the bottom shell, a mist outlet arranged at a top end of the upper shell cover, a coupling sleeve fixed on an inner wall surface of the upper shell cover, a silent hood sleeved on the coupling sleeve and being extendable to the bottom of the water storage tank, and a wave collecting ring having lower density than liquid in the tank arranged in the silent hood and capable of moving up and down. An ultrasonic atomizer protruding into the water storage tank is fixed in the middle of the bottom shell, a top end of the silent hood is sleeved with the coupling sleeve and covers the periphery of the ultrasonic atomizer.

An aspect of the present disclosure provides a system for aerosol jet printing an aerosolized particle source configured to selectively provide aerosolized particles, a nozzle configured to deposit aerosolized particles on a substrate, an actuator configured to generate acoustic energy for migrating the particles, and a generator configured to selectively energize the actuator. The nozzle includes a proximal inlet configured for passage of aerosolized particles, a column configured to focus the aerosolized particles when vibrated by an actuator, and a distal opening configured for deposition of the particles on a substrate.

A mesh element for an atomiser assembly is provided, including: a first layer defining at least one channel including a minimum cross-sectional area; and a second layer overlying the first layer and defining at least one nozzle including a maximum cross-sectional area, the second layer including an inner surface facing the first layer and an outer surface facing away from the first layer, the at least one nozzle overlying the at least one channel, and the maximum cross-sectional area of the at least one nozzle being smaller than the minimum cross-sectional area of the at least one channel, and the outer surface of the second layer defining an annular portion extending around the at least one nozzle, the annular portion having a semi-circular cross-sectional shape, and a thickness of the second layer at each annular portion being larger than a thickness of the second layer between adjacent annular portions.

A detachable atomizing device and a container thereof are provided. The container is detachably assembled to an atomizing assembly. The container includes a cup and a flexible film. The cup has an opening arranged at an end thereof, the flexible film covers the opening of the cup, and the flexible film has a tension region and an outer ring-shaped region that surrounds the tension region. The tension region has a plurality of atomizing holes having an average diameter within a range of 1 μm to 20 μm, and the outer ring-shaped region is attached to the cup. When the cup is assembled to the atomizing assembly, a tension value of the tension region of the flexible film is increased from an initial tension value to an atomizing tension value by being pressed from the atomizing assembly, and the atomizing holes of the tension region are configured to allow liquid to pass there-through and to be formed as aerosol mist having an average atomized particle diameter less than a predetermined value. Accordingly, the cup and the flexible film that often need to be replaced are isolated from the atomizing assembly, and an expensive vibrator is disposed in the atomizing assembly, so that the service life of the detachable atomizing device can be extended.

A nebuliser for nebulising liquid droplets includes a housing; at least one piezoelectric substrate accommodated within the housing and having a transducer surface upon which is located at least one electroacoustic transducer for generating acoustic wave energy within the substrate, and an opposing non-transducer surface; and a liquid supply system for supplying a liquid to at least one of the transducer and non-transducer surfaces. The liquid supply system includes a reservoir for accommodating the liquid, and at least one relatively rigid supply conduit in contact with the substrate for supplying the liquid from the reservoir to the substrate.

A method of delivering safe, suitable, and repeatable dosages to a subject for topical, oral, nasal, or pulmonary use and a device for droplet ejection includes a fluid delivery system capable of delivering a defined volume of the fluid in the form of droplets having properties that afford adequate and repeatable high percentage deposition upon application. The method and device include a housing, a reservoir disposed within the housing for receiving a volume of fluid, an ejector mechanism configured to eject a stream of droplets having an average ejected droplet diameter greater than 15 microns, the stream of droplets having low entrained airflow such that the stream of droplets deposit on the eye of the subject during use.

The present disclosure provides an aerosol delivery device that comprises a housing defining an outer wall, and further including a power source and a control component, a mouthpiece portion that defines an aerosol exit path, a first reservoir configured to contain a first liquid composition, a second reservoir configured to contain a second liquid composition, a first atomization assembly configured to vaporize the first liquid composition to generate a first aerosol having a first aerosol particle size, and a second atomization assembly configured to vaporize the second liquid composition to generate a second aerosol having a second aerosol particle size. The first liquid composition may be different than the second liquid composition, and the first particle size may be different than the second particle size.