2) technical principle

Abdominal liposuction is the most commonly used and reliable method to lose weight in abdominal shaping at present. Among them, electric negative pressure liposuction was founded in 1970s, which is a traditional liposuction technology. It uses an electric suction device or a special negative pressure liposuction machine to connect the liposuction catheter and the metal tube, and inserts the liposuction catheter into the subcutaneous fat layer through a small incision in the skin. Using the suction of negative electric pressure, the subcutaneous fat accumulated locally in human body is sucked out of the body to achieve the purpose of losing weight and shaping the abdomen. Electric negative pressure liposuction is time-consuming and laborious, with great damage and obvious pain. The sucked fat can be purified and reused.

3) Adapt to the crowd and taboo crowd

1) Adapted population: those whose abdominal fat is increased or deposited, which affects the body shape curve.

2) Taboo crowd

① Cardiovascular and cerebrovascular diseases, diabetes, abnormal blood coagulation function and impaired function of important organs;

② Long-term use of anticoagulants, vasodilators and corticosteroids;

(3) Patients with abdominal skin infection;

(4) Those who have psychological barriers, high expectations and high demands on their own bodies;

⑤ morbidly obese people can discuss with doctors whether the primary disease can be operated after it is cured or controlled.

4) Technical methods

① Positioning: Delineate and mark the scope of attraction.

② Incision: the length of incision is equivalent to the diameter of liposuction tube, which is generally 0.5- 1cm. Incision position can be pubic mound or incision around umbilicus; Incision on both sides of umbilicus or incision on both sides of umbilicus can also be used. The advantage of incision on both sides of navel is that it can suck waist fat at the same time.

③ Anesthesia: Swelling anesthesia is the most commonly used anesthesia method in liposuction at present. Intraspinal anesthesia can be used for patients with large-scale liposuction. For those who fear before operation, general anesthesia can be used. No matter what kind of anesthesia is used, swelling local anesthesia should be used in the suction area.

④ Suction: Insert the liposuction tube into the subcutaneous fat layer through the skin incision, with a depth of 1-2cm, and perform saw-saw suction according to the marked area, and start the electric suction device at the same time. If the surface of liposuction skin is uneven, it needs to be trimmed, and the suction is over after trimming. The first-class safety amount of liposuction is below 2000ml.

⑤ Postoperative treatment: After aspiration, subcutaneous liquid and fat particles are squeezed out, and the drainage tube can be placed for 48-72 hours. Suture the incision. Cover the dressing and apply pressure to bind it.

5) Risks and complications

Liposuction is a common plastic surgery for weight loss at home and abroad, and the incidence of complications is very low, especially serious complications are rare. However, according to literature statistics, there are still deaths. Therefore, even the safest operation cannot be taken lightly. Causes of death: fat embolism syndrome is the first, followed by perforation of abdominal wall or organs, and drug-induced (anesthesia, sedation and other drugs) is the third.

① Common complications

A. skin unevenness or asymmetrical temporary unevenness is more common. After half a year of pressure forming, it will be improved. It is still uneven after half a year, and it can be smoked again after one year.

B. Seroma is a large cavity under the skin filled with non-condensable serum-like liquid, which is easy to form chronic seroma. Small seroma can be absorbed by itself, and large seroma needs medical treatment, which requires syringe suction or incision, release and pressure dressing.

C ecchymosis appears within 24 hours after operation and can be eliminated in 1-2 weeks, generally without treatment.

D. Skin necrosis is rare, which is caused by liposuction that damages superficial fat, destroys subdermal vascular network or infection. You need to see a doctor as soon as possible to prevent infection.

Other common complications, such as skin numbness or pain, pigmentation and subcutaneous induration. Most of them disappear on their own within three to six months.

② Rare complications

A. Fat embolism and fat embolism syndrome are the main causes of death caused by liposuction, and the main symptoms are the triad of hypoxia, confusion and subcutaneous ecchymosis.

B Before perforation of abdominal wall and viscera, doctors should be informed of hernia, history of abdominal surgery, intestinal adhesion and history of abdominal liposuction, which are all factors that increase the probability of perforation.

C. Toxic side effects of drugs Lidocaine and epinephrine in swelling fluid will have toxic side effects if they exceed a certain dose or concentration and interact with other drugs. Symptoms include headache, tongue numbness, tinnitus, delirium, anxiety, lethargy, bradycardia and hypotension. Keep in touch with the doctor at any time after operation.

6) Recovery time

① There will be exudate in the wound within/0/-2 days after operation, which will make the dressing moist and bring inconvenience to life, so it is necessary to change the dressing in time.

② Drainage strips will be placed at the wound after operation, and it is necessary to go to the hospital for reexamination 48-72 hours after operation to remove the drainage.

③ It is normal to feel pain during exercise within/0/-4 days after operation, but it generally does not affect self-care.

④ About 7 days after operation, a follow-up visit is needed to remove the incision suture.

⑤ After operation 1-2 weeks, there will be some swelling and ecchymosis at the liposuction site.

⑥ Local pressure bandaging 1-2 weeks.

⑦ The skin may have slight pigmentation, and it will gradually disappear after 1 ~ 2 months.

⑧ Pressure shaping, you need to wear elastic underwear for 3-6 months after operation.

7) Precautions

① Doctors should be informed of hernia, history of abdominal surgery, intestinal adhesion and history of abdominal liposuction before operation.

② Choose a regular medical institution. Liposuction is a kind of harm to human body. The more you inhale, the larger the area you inhale, and the greater the harm to human body.

A./kloc-disposable liposuction below 0/000 ml belongs to the first-class project in the classification of medical beauty projects of the Ministry of Health, with less technical difficulty and risk, and can be carried out in first-class general hospitals and outpatient departments or clinics.

B the initial liposuction amount is 1000ml≤ liposuction amount.

C. A liposuction amount of 2000ml≤ or less.

2) technical principle

Ultrasonic liposuction is a liposuction method that uses the physical and chemical action of high-energy and low-frequency ultrasound to selectively destroy subcutaneous adipose tissue, generate fat emulsion, and then suck it out of the body through negative pressure suction. The metal probe of the ultrasonic liposuction system is connected with a negative pressure suction device, and the probe can be inserted into the skin to emulsify adipose tissue and suck it out under negative pressure. This technique has little injury and low surgical intensity, but the operation time is long and the liposuction amount is small, so it can't suck out superficial fat. In addition, thermal damage may occur, and the extracted fat cannot be reused. 1) tab: operation, level 1 to level 3 operation.

2) technical principle

Electronic liposuction is a liposuction method that uses high-frequency electric field generated by positive and negative electrodes to destroy, crack and liquefy subcutaneous fat in vivo into chyle, and at the same time uses negative pressure to pump the broken fat mixture out of the body to achieve the purpose of shaping. The pain degree of electronic liposuction is low, and the extracted fat is destroyed and cannot be reused. 1) tab: operation, level 1 to level 3 operation.

2) technical principle

* * * Vibration liposuction is a liposuction method developed in 1990s. The working principle of this technology is to use a high-pressure air pump to make the head of the straw reciprocate 600 times per minute, and the reciprocating amplitude is high-frequency vibration, which can break the swollen fat tissue after anesthesia. The amplitude of 5mm will not cut and damage non-fat tissues, and the damage to blood vessels, nerves and other tissues is very small. * * * The fat sucked out by vibration liposuction is destroyed and cannot be reused. Although ultrasonic liposuction and electronic liposuction auxiliary system pay attention to low trauma, there are some defects such as less liposuction and too slow liposuction speed. The traditional negative pressure liposuction is time-consuming and laborious, and the doctor's labor intensity is great. * * * Vibration liposuction has the advantages of fast liposuction speed, large liposuction amount and reducing the labor intensity of doctors. 1. label: operation, I-III operation.

2. Technical principle

Laser liposuction mostly uses 1-500mW or 5-500mW low-energy laser. Laser liposuction can be divided into in vitro laser liposuction and in vivo laser liposuction. In vitro laser liposuction does not need to make an incision on the skin when irradiating laser, but in vivo laser liposuction needs to make a small incision on the skin before irradiating laser, and insert a laser fiber catheter, the front end of which is the laser release part. Laser can produce heat, light, chemical effects and biological stimulation to tissues. During laser liposuction, the laser therapeutic apparatus releases laser energy, and selectively melts the cell membrane of fat cells through the thermal effect of laser, so that fat is ruptured and liquefied, and the number of fat cells is reduced. Melted fat can be discharged by extrusion or syringe suction, while a large amount of liquefied fat needs to be sucked out by a special laser probe under negative pressure. In addition, the energy released in the process of laser liposuction can stimulate the collagen proliferation of the skin, making the skin after liposuction firm and curved. The commonly used lasers for liposuction in clinic are HeNe (He-Ne laser) and Nd:YAG laser with the wavelength of 65438±0064nm.