the vagina tightening hifu system uses an noninvasive hifu focusing technique to focus on the mucous membrane fibrous layer and muscle layer directly. using hifu waves as the energy source and taking advantage of its penetration and focus the system will send out hifu energy focusing in the the lamina and muscle fiber layer in a predetermined depth. a higher intensity of hifu region in 0.1 second, the temperature of the region can reach to above 65, so the collagen is reorganized and the normal tissue outside the focal region is undamaged. hifu machine is an advanced new high-intensity focused ultrasound technology designed instrument, change the traditional face lift wrinkle cosmetic suigery, non-surginal wrinkle technology..syi