© Copyright 2026 American Medical Association. All rights reserved.
Low frequency, non-contact, non-thermal ultrasound is a therapeutic procedure designed to enhance the healing process of various types of wounds. This innovative modality is particularly effective for chronic wounds, including pressure ulcers, diabetic foot ulcers, vascular ulcers, and dehisced surgical wounds. The procedure utilizes an ultrasound system that comprises an ultrasonic generator and a disposable sterile applicator. The technology operates by emitting continuous low-frequency acoustic energy, which atomizes saline into a fine mist that is delivered to the wound bed without direct contact. This non-invasive approach facilitates the treatment of wounds by creating cavitation and acoustic mainstreaming effects, which are essential for stimulating tissue granulation and promoting cellular repair. During the procedure, a comprehensive wound assessment is conducted, which includes measuring the wound and documenting its condition through photographs. The surrounding tissue is cleansed to ensure a sterile environment for treatment. The disposable applicator is then affixed to the transducer, and treatment parameters are carefully selected based on the specific needs of the wound. The saline source is integrated into the applicator, allowing for the effective application of the ultrasound mist. The applicator is maneuvered in a serpentine pattern above the wound bed, maintaining a distance of 5-10 mm from the wound surface to optimize treatment efficacy. After the ultrasound application, the disposable components are discarded, and the remaining equipment is disinfected. Finally, the wound bed is gently wiped with sterile gauze, and an appropriate dressing is applied to protect the area and support the healing process. This procedure is reported on a per day basis and includes any topical applications performed, along with instructions for ongoing care to ensure continued healing and management of the wound.
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