A mesh nebulizer that nebulizes and ejects a medicinal liquid through a mesh portion, includes a main body including a vibration portion including a vibration surface, and a medicinal liquid pack to be detachably mounted on the main body. The medicinal liquid pack includes a lid in which the mesh portion is provided, and a medicinal liquid container that includes a recessed portion that is open toward the mesh portion and is covered by the lid, the medicinal liquid being contained in the recessed portion. At least a portion of a bottom surface of the recessed portion of the medicinal liquid container that is to oppose the vibration surface is made of a stretchable material. When the medicinal liquid pack is mounted on the main body, the stretchable material of the bottom surface stretches, allowing the vibration surface to approach the mesh portion of the lid.

A low-frequency ultrasonic atomizing device includes a piezoelectric vibrator, a horn, a secondary atomizing chamber, a gas-liquid valve end cover, a Laval-type valve core, a stepped valve core, and a gas-liquid valve body. The piezoelectric vibrator is glued onto the horn, and the gas-liquid valve end cap is connected to the gas-liquid valve body by a thread, while both the stepped valve core and the Laval-type valve core are installed within a cylindrical cavity of the valve body, an end of the Laval-type valve core being sleeved at an end of the stepped valve core. The horn and the secondary atomizing chamber, the secondary atomizing chamber and the gas-liquid valve end cover are connected by a double-head stud and a nut. The device achieves multi-stage atomization of droplets, which increases the atomization quantity of a spray device, the droplets being small, and also achieves long distance spraying.

An ultrasonic vibrator driving apparatus performs driving by applying an alternating voltage as a drive voltage to an ultrasonic vibrator that includes a piezoelectric element and has a unique resonance frequency. The drive voltage is generated with a variable frequency in a frequency range including the resonance frequency of the ultrasonic vibrator. The frequency of the drive voltage is repeatedly swept with a predetermined sweep width and a predetermined sweep period so as to include the resonance frequency, based on a reference frequency set according to the resonance frequency of the ultrasonic vibrator. The sweep period and the sweep width are restricted by being associated so as to fall within a predetermined allowed range on a two-dimensional map divided by the sweep period and the sweep width.

The disclosure relates to the field of spray welding, and involves a method and a device for liquid spray welding, as well as the application method thereof. The method for liquid spray welding specifically comprises the following steps: S1: Solder to be spray-soldered is melted under the protection of an inert gas; S2: Then, the melted solder is spray-soldered while using ultrasonic focusing. The device includes a solder conversion mechanism which consists of a container; the cavity in the container is used for placing the solder; a spraying hole is arranged at the bottom of the container to connect with the cavity, and a heating mechanism is mounted along the outer wall of the container; a device for driving the solder spraying is used to control the frequency of an ultrasonic generating mechanism.

A unit dose capsule for use with a sonic generator includes a deformable membrane adapted to releasably engage the distal end of the elongate horn, a nozzle including at least one delivery opening; a nozzle including at least one delivery opening; and a reservoir containing a liquid composition disposed therebetween. When the unit dose capsule is engaged to the distal end of the elongate horn, the nozzle is disposed in an outwardly facing orientation, and the reservoir is in liquid communication with the at least one nozzle. The unit dose capsule can be included in a kit with a handheld misting device comprising a housing having a dispensing window arranged and configured to contain a sonic generator and a power source.

An ejector mechanism, droplet delivery device and related methods or delivering small droplets to the respiratory system of a users disclosed. The ejector mechanism comprises a piezoelectric actuator and an aperture plate, the aperture plate having and a plurality of openings formed through its thickness, wherein at least the fluid entrance side of one or more of said openings is configured to provide a surface contact angle of less than 90 degrees and the piezoelectric actuator is operable to oscillate the aperture plate at a frequency to thereby generate an ejected stream of droplets during use. The droplet delivery device is automatically breath actuated by a user when the differential pressure sensor senses a predetermined pressure change. The ejector mechanism is then actuated to generate a plume of droplets having an average ejected particle diameter within the respirable size range having a diameter of less than about 4 um so as to target the respiratory system of the user.

An industrial printhead (100) comprising a flow channel enclosed in a chamber, wherein the flow channel (102) has at least one fluid inlet (102a) and at least one fluid outlet (102b), wherein the flow channel is resonated, in use, by a vibration distributor (104) comprising a mass resonator (103), piezoelectric exciter (108) and wave concentrator (110) arranged in an axial configuration.

Proposed is a vibration nozzle for a bidet, having a nozzle tip and a vibration motor that are formed to be separate such that the nozzle tip has maximized vibration efficiency so as to allow clean washing, the nozzle tip is coupled only to a part of the inside of the front end of a nozzle so as to be reduced in size, thereby having reduced manufacturing costs, and washing water supply pipes connected to the nozzle tip are arranged at both sides of the shaft of the vibration motor such that the diameter of the nozzle can be minimized and a structure for forming a separate water channel is unnecessary, and thus manufacturing costs can be reduced.

Proposed is a vibration nozzle for a bidet, having a nozzle tip and a vibration motor that are formed to be separate such that the nozzle tip has maximized vibration efficiency so as to allow clean washing, the nozzle tip is coupled only to a part of the inside of the front end of a nozzle so as to be reduced in size, thereby having reduced manufacturing costs, and washing water supply pipes connected to the nozzle tip are arranged at both sides of the shaft of the vibration motor such that the diameter of the nozzle can be minimized and a structure for forming a separate water channel is unnecessary, and thus manufacturing costs can be reduced.

A method and apparatus for applying a bone attachment coating to a prosthetic component, the bone attachment coating being formed from a plurality of particles applied to a surface of the prosthetic component. The method comprising: locally exciting the particles so as to increase the kinetic and/or thermal energy of the particles; and applying pressure to the particles by virtue of a press arranged so as to press the particles against the surface of the prosthetic component at an interface between the press and the prosthetic component. The kinetic and/or thermal energy of the particles causes localised heating of the component such that the particles may be embedded into the surface of the prosthetic component.