1, severe cardiopulmonary renal failure.

2. Patients with malignant tumors.

3. Patients with acute infectious diseases.

4. Hemorrhagic period of various hemorrhagic diseases.

5, female (pregnancy, menstrual period).

6. Foreign bodies (such as metal and silica gel) are buried in the body.

7, the recovery period after heart surgery and patients with severe organic heart disease.

8. Patients with severe hypertension (blood pressure higher than160/1100 mmhg)

9, other critically ill patients.

10, it needs two people to operate together, and no one is allowed to use it alone.