US Patent 11944120 Ultrasonic mist inhaler with capillary retainer

An ultrasonic mist inhaler, including a liquid reservoir structure including a liquid chamber adapted to receive liquid to be atomized, a sonication chamber in fluid communication with the liquid chamber, a capillary material arranged between the liquid chamber and the sonication chamber, the sonication chamber including an ultrasonic oscillation component having an atomization surface, a capillary material retainer, wherein the capillary material retainer having a body surrounding the ultrasonic oscillation component, the retainer body having a radial arm extending to the atomization surface for retaining the capillary material in surface contact with the atomization surface.