The basic principle of dvt is the formation of a blood clot that gets stuck in the vein and, if unchecked, may eventually yank free into an outpouring.used for dvt prevention, this equipment is understood to be a modern-class instrument of medicine.deep vein thrombosis is a condition where blood clots form in the deep veins, typically in the legs. This elaborate medical appliance is made to prevent it.basically this instrument functions by promoting blood circulation and simulating the muscle contractions of the calf which facilitate transportation back to the heart.the technological components include programmable settings whereby inflation and deflation can be adjusted in cycles to fit the patient's particular needs.it is portable, light and comes with sleeves that can be adjusted for size to fit comfortably on your limbs. The device has applications across a wide range of fields, from post-surgical recovery to people who are immobilized and at high risk of developing dvt due to some surgery or trauma or long – term travel or bed rest.