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MIST Systems produce a low energy ultrasound generated mist used to promote wound healing through wound cleansing and maintenance debridement by the removal of yellow slough, fibrin, tissue exudates, and bacteria.

MIST Systems (e.g., UltraMIST System) are low frequency ultrasound devices, which utilize a fluid (e.g., saline) mist to deliver the ultrasound to the treatment site. The atomized fluid allows the treatment to be performed without direct contact to the patient. MIST Systems are made up of a main generator component, treatment wand, and disposable applicator. MIST Systems deliver low-frequency ultrasound to the treatment site using an atomized fluid mist. The mist is generated from a small, portable system consisting of a generator, a treatment wand (encasing an ultrasound transducer), and a disposable applicator that has been designed to connect to a user-provided fluid source (e.g., IV saline bag). The system provides a flow of fluid (irrigant) to the tissue surface by the use of low frequency, low intensity ultrasound. Only the mist touches the tissue, not the ultrasound radiation surface (horn tip), thus the term "non-contact" ultrasound. The flow of fluid as an irrigant is controlled by a peristaltic pump on the generator unit. The fluid is dispensed onto the ultrasound radiation surface where the mist is generated. The mist is projected by fundamental atomization or nebulization and acoustic streaming or acoustic radiation force respectively.