The present invention relates to devices and methods for coating surfaces including surfaces of medical devices, in particular the coating of microprojections on microprojection arrays. The present invention also relates to print head devices and their manufacture and to methods of using the print head devices for manufacturing articles such as microprojection arrays as well as to coating the surfaces of microprojection arrays. The present invention also relates to high throughput printing devices that utilize the print heads of the present invention.

Disclosed is a system for dispensing a fluid. The system may include a cartridge and a main unit configured to be coupled to the cartridge. The cartridge may comprise a container which may include at least one opening and at least one membrane in fluid communication with the at least one opening. Further, the cartridge may include at least one actuator which, upon activation, may be configured to cause the fluid to pass through the at least one membrane. Furthermore, the cartridge may include at least one storage device configured to store fluid data representing at least one characteristic associated with the fluid. Additionally, the cartridge may be operably associated with at least one controller configured to control activation of the at least one actuator based on the fluid data. The controller may be configured within the cartridge or be coupled to the cartridge by way of, for example, a main unit.

A nozzle plate (201) for use in a liquid droplet production apparatus and such apparatus, the nozzle plate comprising a flexible substrate having a linear array of nozzles that extend through said plate, said nozzles being arranged in at least one line, forming thereby a nozzle-bearing region, wherein the substrate is curved so as to impart an increased longitudinal stiffness to it. The apparatus comprises a piezo actuator (202, 203), which may have slots (211) separating fingers acting on the nozzle plate (201). The nozzle plate may be separable form the actuator.

An atomizing sheet assembly, an atomizer, and an electronic cigarette are disclosed. The atomizing sheet assembly comprises an e-liquid guide member, an atomizing sheet, and an atomizing seat. The atomizing sheet is fixed on the atomizing seat. The e-liquid guide member is in contact with an atomizing surface of the atomizing sheet. The atomizing seat is made of an elastic material. The e-liquid guide member is flaky. The atomizing seat is provided with a through hole. The flaky e-liquid guide member passes through the through hole and is in contact with the atomizing sheet. The atomizing sheet assembly can effectively adjust the e-liquid guide rate.

A controller for controlling an atomizing unit, wherein the atomizing unit includes a piezoelectric element substrate including an IDT including a pair of interlocking comb-shaped metallic electrodes, and a liquid supplier configured to supply liquid, which is to be atomized, to the piezoelectric element substrate; wherein the piezoelectric element substrate is configured to atomize the liquid by use of a surface acoustic wave generated by applying a high-frequency voltage to the pair of interlocking comb-shaped metallic electrodes; and the controller is configured to periodically change amplitude and/or a frequency of the high-frequency voltage applied to the pair of interlocking comb-shaped metallic electrodes.

An inhaler includes an atomizing unit including a piezoelectric element substrate having a first IDT including a pair of interlocking comb-shaped electrodes. The atomizing unit is configured to atomize liquid by a surface acoustic wave generated by applying a high-frequency voltage to the pair of interlocking comb-shaped electrodes, and a controller is configured to monitor a resonant frequency of the pair of interlocking comb-shaped electrodes and apply a voltage to the pair of interlocking comb-shaped electrodes at a frequency determined based on the monitored resonant frequency.

A processing liquid nozzle includes: an ultrasonic wave generator including a oscillator that generates ultrasonic waves and a oscillating body that is joined to the oscillator; a first supply flow path configured to supply a first liquid to a position in contact with the oscillating body of the ultrasonic wave generator; an ejection flow path configured to supply the first liquid to which the ultrasonic waves are applied by the ultrasonic wave generator to an ejection port; and a second supply flow path connected to the ejection flow path on a downstream side from the ultrasonic wave generator and configured to supply a second liquid to the ejection flow path.

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.

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.

A connector configured to support a nebulizer inside a cartridge includes an annular wall, a conduit, and a plurality of spokes between the annular wall and the conduit. The spokes define openings therebetween and the annular wall is shaped and sized to be fitted into a lip of a bottle. A cartridge includes a housing configured to house a liquid, a collar defining an opening into the cartridge, the connector and a nebulizer held within the housing with the connector. Optionally, an anti-spill cover is fitted in an outlet of the cartridge.