Negative-pressure wound therapy (NPWT), also known as a vaccum dressing or V.A.C.® dressing (“vacuum assisted closure”), is a therapeutic technique using a suction dressing to remove excess exudation and promote healing in acute or chronic wounds and second- and third-degree burns.

How does a wound vacuum work?

A wound vacuum device removes this pressure over the area of the wound. This can help a wound heal in several ways. It can gently pull fluid from the wound over time…. NPWT also helps pull the edges of the wound together.