The Deyee ULTRO-SONIC DY-U1 is a high-energy focused ultrasound physiotherapy device that uses non-invasive ultrasound to produce therapeutic effects on the human body. Three core mechanisms include mechanical effect promoting tissue regeneration and blood circulation, warming effect increasing capillary opening and reducing muscle tension and pain, and physicochemical effect enhancing biofilm diffusion and metabolism. It is applicable for treating leg sheath inflammation, shoulder, neck, waist, and leg pain, bruised tissue, arthritis and joint injuries, soft tissue strain and inflammation, and lumbar disc herniation in medical and physiotherapy settings.