Ultrasound Wound Debridement System Promotes Healing

The Qoustic Wound Therapy System assists healing by gently removing dead or diseased tissue cells and bacteria, leaving healthy and pre-healing granulation tissue intact. It is also useful in preparing the wound bed for other therapies, such as grafts and flaps. The system employs a dome-shaped "Qurette,” which vibrates at 35 kHz, converting electrical energy to ultrasound waves and focusing them intensively on the wound. A sterile saline solution transfers the ultrasonic energy to the wound, where cavitation i.e., oscillation of microscopic bubbles that expand and collapse as they resonate with the ultrasound frequency, and acoustic microstreaming i.e., cellular-level fluid movement, separate dead and harmful cells from healthy tissue. As a result, dead and harmful cells are fragmented and destroyed, thus aiding in their easy removal with the edge of the Qurette.

The system is portable and can be used in various health care settings by wound care specialists, including physicians, registered nurses, nurse practitioners, physician assistants, physical therapists, and podiatrists. The system reduces splash and aerosolization. It can reduce wound care costs in several ways: fast setup, no required disposables, short procedure times, effective procedures that reduce debridement frequency, efficient use of saline, and fast cleanup. The Qoustic Wound Therapy System is a product of Arobella Medical (Minneapolis, MN, USA), and has been approved by the U.S. Food and Drug Administration (FDA).

"The Qoustic Wound Therapy System debrides by deploying focused ultrasound energy directly on the wound bed, notably improving the effectiveness of debridement versus sharps debridement alone. The use of ultrasound helps preserve healthy tissue and protects newly formed granulation tissue, while being gentle and efficient,” said Eliaz Babaev, Ph.D., president and CEO of Arobella Medical. "The system has the potential to significantly advance patient care and healthcare worker safety, as well as reduce costs.”

Low-frequency ultrasound debridement is emerging as a preferred method of care for many types of wounds, including pressure ulcers, diabetic ulcers, infected wounds, burns and other chronic wounds. Five to seven million people each year in the United States require treatment for chronic wounds resulting from ulcers, sores, burns, fistulas and other conditions. A significant number of the people with chronic wounds have diabetes, and rapid growth of the diabetic population is increasing the need for advanced wound care.


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