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V.A.C. FREEDOM™ Negative Pressure Wound Therapy System

The information on this page is intended for healthcare professionals. Patient-specific information is available in the “Patients” section of this site. Patients should consult a healthcare professional regarding specific medical conditions and treatments.

V.A.C. FREEDOM™ Therapy Unit
V.A.C. FREEDOM™ Therapy Unit
V.A.C. FREEDOM™ Therapy System
V.A.C. FREEDOM™ Therapy System

The V.A.C. FREEDOM™ Therapy System Creates an Environment That Promotes Wound Healing

Designed to help patients receiving the proven wound healing benefits of V.A.C.® Therapy be mobile for longer periods of time while being cared for in the skilled nursing or long term care settings.
  • Creates an environment that promotes wound healing by facilitating granulation tissue formation
  • Ergonomic design is lightweight, small, and easy to use



Only V.A.C.® Therapy provides patented SENSAT.R.A.C.™ Technology, a real-time pressure feedback system that adjusts pump output, compensating for wound distance, wound position, exudates characteristics, and patient movement.

Easy to Operate

  • LCD with menu interface allows for efficient selection of negative pressure wound therapy
  • Smart Alarms help ensure patient safety and assist staff in providing care
  • 300ml canister minimizes canister changes

Patient Comfort

  • Long battery life (~12 hours) and lightweight design enables patients to be mobile and active
  • Carrying case allows discreet delivery of therapy on the go
  • Adjustable rate of dressing draw down intensity for increased comfort

How it Works

  • About
  • Specifications
  • Materials For Download


V.A.C.® Therapy creates an environment that promotes wound healing

The mechanisms of action for V.A.C.® Therapy include drawing wound edges together, removing infectious materials and wound fluids, promoting perfusion, maintaining a closed, moist wound healing environment and promoting granulation tissue formation.
The integrated V.A.C.® Therapy System has a unique mechanism of action whereby the delivery of negative pressure through the V.A.C.® Therapy units using proprietary V.A.C.® GRANUFOAM™ Dressings, maintains a wound environment that promotes healing.


How V.A.C.® Therapy creates an environment that promotes wound healing

Under negative pressure, V.A.C.® Therapy with proprietary V.A.C.® GRANUFOAM™ Dressings applies mechanical forces to the wound to create an environment that promotes wound healing. These forces are known as macrostrain and microstrain.1
Macrostrain is the visible stretch that occurs when negative pressure contracts the foam.
  • 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.
  • Reduces edema
  • Promotes perfusion
  • Promotes granulation tissue formation by facilitating cell migration and proliferation


V.A.C. FREEDOM™ Therapy Unit
Dimension:          6.5”(16.51cm) W x 3.125”(7.9cm) H x 7.5”(19.05cm) D
Weight:                3.20lbs. (1.45kg)
Canister volume: 300ml
Battery Life:         Approximately 12 hours
Electrical Data
Charger/External Supply Input:    100-240V AC, 50/60Hz, 1 Amp
Charger/External Supply Output: 18 V DC, 2.2 Amp
Maximum Electrical Leakage:       <100 Microamps
Therapy Options
Negative Pressure:  50-200mmHg
Mode of Operation: Continuous and Intermittent
Intensity:                  Variable
Storage Conditions
Temperature Range:          -4°F (-20°C) to 140°F (60°C)
Relative Humidity Range : 10 to 95% non-condensing
Operating Conditions
Temperature Range :         50°F (10°C) to 85°F (30°C)
Relative Humidity Range : 30% to 75%
IEC Classification
Medical Equipment
Equipment not suitable for use in Presence of flammable anesthetic mixture with air, oxygen, or nitrous oxide

Indications & Applications

Indications & Applications

  • Indications
  • Applications

Indications for Use

Before use, physicians should review complete risk information and essential prescribing information which can be found in the Instructions for Use
The V.A.C. FREEDOM™ Therapy System is an integrated wound management system for use in acute, extended and home care settings. It is intended to create an environment that promotes wound healing by secondary or tertiary (delayed primary) intention by preparing the wound bed for closure, reducing edema, promoting granulation tissue formation and perfusion, and by removing exudate and infectious material. It is indicated for patients with chronic, acute, traumatic, subacute and dehisced wounds, partial-thickness burns, ulcers (such as diabetic, venous insufficiency or pressure), flaps and grafts.
When used on closed surgical incisions, it is intended to manage the environment of surgical incisions that continue to drain following sutured or staple closure by maintaining a closed environment and removing exudates via the application of negative pressure wound therapy.

Evidence & Outcomes

V.A.C.® Therapy has the largest body of evidence to date including over 1,000 peer reviewed articles, 45 of which are randomized controlled trials (RCTs). These studies have demonstrated positive clinical outcomes of NPWT, as well as the effectiveness of V.A.C.® Therapy in diabetic foot wounds, chronic wounds (e.g., pressure ulcers and lower extremity ulcers), and a variety of acute wounds. Some of these studies are listed below.

Clinical Evidence

Additional summary of evidence and outcomes.

Evidence & Outcomes

Evidence & Outcomes

Title Study Type Date Authors