Saturday November 14, 2009
How Wound V.A.C. Therapy System works

The V.A.C. Therapy System is comprised of three essential components that actively work together to help induce cellular wound healing through promotion of granulation tissue formation.

1. V.A.C. Therapy Unit Provides intermittent and continuous therapy with integrated patient safety features
2. SensaT.R.A.C.™ Technology Regulates pressure at the wound site to provide accurate delivery of prescribed therapy settings
3. V.A.C. GranuFoam™ Dressings Help induce the necessary mechanisms to promote granulation tissue formation

How V.A.C. Therapy Works on the Cellular Level

Under negative pressure, V.A.C. Therapy with V.A.C. GranuFoam Dressings applies both mechanical and biological forces to the wound to create an environment that promotes wound healing. These forces are known as macrostrain and microstrain.

Macrostrain is the visible stretch that occurs when negative pressure contracts the foam. Macrostrain

• Draws wound edges together
• Provides direct and complete wound bed contact
• Evenly distributes negative pressure
• Removes exudate and infectious materials

Microstrain is the microdeformation at the cellular level, which leads to cell stretch. Microstrain:

• Reduces edema
• Promotes perfusion
• Increases cellular proliferation and migration
• Promotes granulation tissue formation