The present invention discloses a negative pressure
liposuction device for medical cosmetic
surgery, comprising a housing, a
liquid storage tube and a collection tube installed at the bottom of the side of the housing, a
liquid injection port installed on the surface of the housing, a suction pump installed at the back end of the housing, a connecting tube connected between the suction pump and the top cover of the collection tube, and a top plate sliding inside the
liquid storage tube. The present invention, through the provision of a top plate, an adjustment tube, an electric push rod and a suction adjustment mechanism, can adjust the
suction force in an area with a large or small amount of fat by adjusting the input amount of tumescent fluid. In areas with a large amount of fat, increasing the input amount of tumescent fluid can more effectively separate and liquefy fat tissue, making the suction process smoother. A larger
suction force can quickly absorb fat and shorten the
operation time. In areas with a small amount of fat, reducing the input amount of tumescent fluid and the
suction force can reduce the risk of damage to
subcutaneous tissue.