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Wound irrigators designed for automated or semiautomated irrigation, washing, and debridement of external wounds using irrigation and ultrasonic energy. These irrigators consist of a main electromechanical unit that typically includes a radio-frequency generator; a pump for irrigation with nonmedicated liquids (e.g., saline); controls for the temperature, pressure, and rate of irrigation; and frequently a splash shield to avoid accidental contamination. The units are coupled to dedicated handpieces with ultrasonic transducers and irrigation nozzles to facilitate easy removal of debris and necrotic tissue. Ultrasound debridement irrigators are used to remove damaged (e.g., necrotic) tissue and/or debris (e.g., dirt, foreign objects) in emergency departments and surgical rooms.
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