Minimally invasive cosmetic surgery technology is the most basic principle pursued by plastic surgery. The use of endoscopy has created a new era of minimally invasive surgery in my country. At the same time, many cosmetic physicians in our country carry out surgery without endoscopy, and have also designed and studied many types of minimally invasive surgical procedures. New methods, and the application effects of these methods are very obvious.

1 The working principle of the beauty ultrasonic scalpel hifu machine

The working principle of focused ultrasound cosmetic treatment products is mainly to focus the ultrasound waves emitted by the device on the dermis and subcutaneous fascia areas of the skin. The thermal effect of ultrasound causes tissue to coagulate, forming tiny freezing points in the dermis and fascia, thereby stimulating the repair mechanism of the human body, and driving a large number of normal tissues around the freezing point to participate in the repair, thereby promoting the formation of new collagen during the repair process, and finally to promote tissue repair and Wrinkle improvement effect.

Its mechanism of action is similar to that of carbon dioxide fractional laser equipment, both of which cause slight damage to the skin tissue, stimulate the repair mechanism of the human body, and finally achieve the purpose of skin rejuvenation.

The product is equipped with an image sensor that enables visualization of the treatment area.

These products are regulated as medical devices in the United States and have been approved for sale in the United States. Approved for the improvement of eyebrows, saggy chin (chin) and neck tissue, and improvement of fine lines and wrinkles on the chest.

2 The mechanism of action of ultrasonic scalpel hifu machine

High-intensity focused ultrasound machine (HIFU machine) is a minimally invasive treatment for solid tumors. Ultrasound focuses on the soft tissue in the designated target area, causing its constituent molecules to vibrate and generate heat after friction, thereby causing coagulation necrosis of the soft tissue.

Based on the principle of High Intensity Focused Ultrasound machine (HIFU machine), the ultrasonic scalpel focuses ultrasound on a small area and emits short pulses (25-50ms) of percutaneous ultrasound energy. Target depths up to 4.5mm. Depending on the depth of action, the ultrasonic scalpel can produce a thermal damage area of ​​about 1mm3 in the deep dermis or subcutaneous tissue of the action area, which can coagulate and degenerate the local collagen, and generally recover after 4-12 weeks of treatment. At present, there are 3 depths of ultrasonic scalpel, which are 4.5mm, 3mm and 1.5mm. The SMAS is 5mm, and the deep and mid-reticular dermis are 3.0mm and 1.5mm, respectively. After selecting the depth, the ultrasonic knife can heat the target area to the optimal temperature for collagen deformation, that is, 60°C to 70°C, while the temperature of the superficial skin tissue is only 45°C to 47°C, which will not cause obvious damage. When heated, the denatured collagen fibers shrink, causing the skin to firm. In addition, thermal damage can induce a local healing-like response that produces new collagen and elastin, which can reverse skin aging, firm skin, and improve wrinkles.

 
In addition to the micro-focused ultrasound equipment for treatment, the ultrasonic scalpel is also equipped with high-resolution ultrasound equipment, which can present a tissue plane with a depth of 8mm, ensuring the correct fit of the equipment and the skin, maintaining a proper depth during treatment, preventing other tissue, Such as the wrong positioning of bones and nerves, and to minimize unnecessary pain and side effects. Experienced operators can also select a specific depth and energy level for the patient, enabling individualized treatment.