Two days ago, some friends in our exchange group wanted to know about the HIFU, so we arranged it.
First of all, the HIFU, it does not require surgery, it is a new minimally invasive cosmetic method. Who doesn't want to regain youth without pain and without trauma? Therefore, as soon as this new star in the anti-aging industry came out, it was immediately sought after by beauty lovers.
For some shallow wrinkles, we can rely on phototherapy treatments like photorejuvenation and Thermage, but for severe wrinkles and sagging skin, these programs seem like a drop in the bucket. Compared with other medical beauty projects, the effect of ultrasonic scalpel is immediate.
How HIFU works？
Ultrasound combines micro-focused ultrasound with visual ultrasound imaging. Micro-focused ultrasound can focus ultrasound waves at a certain point under the skin, convert the sound energy into heat energy, and create a thermal damage area under the skin.
Our previous popular science mentioned anti-aging radio frequency. The anti-aging principle of the optoelectronic project is also that thermal damage promotes collagen degeneration - the shrinkage of denatured collagen fibers after heating causes the skin to tighten; in addition, thermal damage will stimulate the production of new collagen and elastin, Thereby achieving the effect of firming the skin and improving wrinkles. Compared with other optoelectronic projects, the advantage of ultrasonic knife lies in its depth of action.
Having said that, I have to mention the causes of skin aging again: the content of collagen and elastin in the dermis decreases year by year with age, wrinkles appear, the SMAS structure of the subcutaneous superficial muscle fascia begins to lack strength, and the fat pad also changes with age. If it sags slowly, it is manifested as the soft tissue of the whole face sliding down, which is commonly known as the collapse of the face.
Therefore, in anti-aging treatment, only by acting on the fascia layer can the sagging tissue be pulled up, that is, lifting.
Ultrasound scalpel currently has three depths for SMAS, deep dermis, and superficial dermis. The pertinence of different depths of action is different. The effect on the superficial dermis is mainly to improve wrinkles, the effect on the deep dermis can tighten, and the effect on SMAS can improve.
Ultrasound is approved in the U.S. for brow lifts to lift loose jaw and neck skin. Although the ultrasonic scalpel is not approved for use outside the head and neck, it has been effective in improving loose skin on the buttocks, outer thighs and abdomen in some clinical trials.
In fact, looking at its working principle, we can naturally understand that as long as the skin is sagging and wrinkles caused by SMAS weakness and collagen loss, it can basically be solved, but some parts with dense blood vessels and nerves or shallow tissues and organs such as the thyroid need to be avoided. opened.
Contraindications and side effects of Ultrasound
1. There is an open injury
2. Severe or cystic acne on the face and neck
3. Patients with pacemaker.
In addition, because the ultrasound can reach the subcutaneous tissue, those who have undergone subcutaneous filling should also avoid these areas.
The side effects of Ultrasound are mostly self-limited redness, edema, pain, bruising, etc. Pigmentation (PIH) is rarely seen (how to prevent and treat "pigmentation"), because Ultrasound is set according to its depth , in the deep dermis and even in the subcutaneous tissue to generate thermal coagulation points to ensure the integrity of the epidermis. The most common side effect is pain, so some routine pain relief measures are required before ultrasonic scalpel treatment.
Post time: Jun-27-2022
