Frequently Asked Questions

Find the answers to frequently asked questions


    V.A.C.® Therapy

    While V.A.C.® Therapy may initially seem more expensive, the clinical benefits may actually help facilities lower their overall cost of care. You can learn more about V.A.C.® Therapy demonstrated cost effectiveness.


    Can you treat more than one wound with one therapy unit?

    Yes. KCI has established two methods for connecting wounds to one therapy unit: “Bridging” and “Y-connecting.” 

    Bridging can be accomplished when you have multiple wounds of similar pathology in close proximity to one another. The V.A.C.
    ® Drape is placed on the intact skin between wounds, and a strip of foam is placed from one wound bed to the other over the draped skin. As long as all pieces of foam are touching each other, you can place the tubing in a central location and use one pump to distribute pressure throughout all the wounds. 

    Y-connecting allows you to treat multiple, non-infected wounds that are a larger distance apart by using a connector that can support two separate tubing connections. Negative pressure in either situation is distributed across the wounds, yet controlled by one pump.

    Please reference the V.A.C.
    ® Therapy Clinical Guidelines for more information.


    Can a hospital bill for V.A.C.® Therapy?

    Yes, a hospital can include charges for the daily therapy unit rental and dressings and canisters on its bill. The charge is established in the hospital charge description master with an association to the following UB 92 revenue codes:
    • Daily Unit Rental – UB92 code 947 (medical surgical supplies)
    • Dressings and canisters – UB92 code 272 (sterile medical surgical supplies)


    Gauze or foam dressings. Is there a difference?

    Yes, there is a clinical difference. Although the V.A.C.® GRANUFOAM™ Dressing (black foam) may seem like simple surgical foam, it has been specifically engineered to distribute NPWT. The hydrophobic, open pore structure of V.A.C.® GranuFoam™ Dressings adapt to the contours of deep or irregularly shaped wounds in order to provide equal distribution of pressure at the wound site. These open pores are also manufactured under specifications to achieve a 400-600 micron pore size to help create an environment that promotes wound healing.
  • For LifeCell

    Q: Is LifeCell Corporation the only source of ALLODERM™ Tissue Matrix?
    A: Yes. LifeCell Corporation, of Branchburg, New Jersey, is the sole source of ALLODERM Regenerative Tissue Matrix.     
    Q: When can I expect to receive my order?
    A: Normal shipping of ALLODERM™ Tissue Matrix and CYMETRA™ MICRONIZED ALLODERM™ Tissue is via overnight delivery. We strive to process each order within 24 hours. We will also arrange delivery based on your specific directions. LifeCell only ships orders on Fridays for Saturday deliveries.
    Q: What is the optimal temperature range in which to store ALLODERM™ Tissue Matrix?
    A: Upon receipt, ALLODERM Tissue Matrix must be stored according to the required storage conditions noted on each graft. 
    Q: What is the shelf life of ALLODERM™ Tissue Matrix?
    AALLODERM Tissue Matrix has an expiration date that is noted on the package label.
    Q: What is the shelf-life of CYMETRA™ MAT?
    ACYMETRA MAT has an expiration date that is noted on the package label.
    Q: Once ALLODERM Tissue Matrix is rehydrated, how long can we keep it?
    A: When fully hydrated, ALLODERM Tissue Matrix is ready to use. The matrix may be left in the second rehydration dish for up to 4 hours.
    Q: What is the best way to determine the dermal side of ALLODERM Tissue Matrix?
    AALLODERM Tissue Matrix has two distinct sides: The basement membrane and the dermal surface. 
    In an implant procedure, the dermal side should rest against the most vascular tissue to speed up the revascularization process.
    How to Distinguish Sides
    Physical appearance
    ​Basement membrane side: Rough and dull
    Dermal side: smooth and shiny
    Distinguishing sides using the blood test
    Add a drop of blood to both sides and rinse with rehydration solution. Since blood readily infiltrates the vascular channels within the matrix, the dermal side will look bright red. The basement membrane side will look pink.
    Q: What happens to ALLODERM Tissue Matrix after it is grafted or implanted into the body?
    A: Primate studies* have shown that ALLODERM™ Tissue Matrix supported regeneration and may provide clinical benefits for patients through rapid revascularization, white cell migration, and cell repopulation, ultimately transitioning into host tissue for a strong, natural repair. 
    Q: What testing is performed on ALLODERM Tissue Matrix to ensure product safety?
    AALLODERM Tissue Matrix is screened and tested according to US FDA regulations, American Association of Tissue Banks Standards, and appropriate state regulations.
    Q: Have there been any reports of latex reactions related to the use of ALLODERM Tissue Matrix?
    AALLODERM Tissue Matrix is processed from cadaveric split thickness skin grafts. No latex products are added to the product or contained in any of the packaging material. Although some individuals contacting the tissue during the procurement of the skin or the processing of the grafts may have worn latex gloves, LifeCell is currently unaware of any reports of latex reactions, allergy or sensitivity related to the use of ALLODERM Tissue Matrix. 
    Q: Does ALLODERM Tissue Matrix contain antibiotics?
    AALLODERM Tissue Matrix is contraindicated for use in any patient with a sensitivity to specific antibiotics listed on the package.
    Q: Why are there no Material Safety Data Sheets associated with LifeCell products?
    A: LifeCell has reviewed the requirements of the OSHA Hazard Communication Standard, 29 CFR 1910.1200, with regard to our products and services. It is our determination that our products are not Hazardous Chemicals as defined in the Standard and therefore do not require a Material Safety Data Sheet.
    Q: How is ALLODERM Tissue Matrix procured and processed?
    AALLODERM Tissue Matrix and CYMETRA MAT are composed of donated human dermal tissue. This donated tissue is recovered, processed, stored and distributed in conformance with the regulations of the US Food and Drug Administration (FDA) and various State legislatures as well as the Standards of the American Association of Tissue Banks (AATB). These regulations and standards require extensive screening and testing of the tissue donor as well as the transplant grafts. Serological screening includes, but is not limited to, tests for evidence of hepatitis, AIDS and syphilis. Additionally, LifeCell tissue grafts undergo a patented process that cleans and removes the cellular components while preserving and stabilizing the biochemical and biomechanical properties of the grafts.
    *Correlation of these results to results in humans is not established.   
    Before use, physicians should review all risk information and essential prescribing information which can be found in the  ALLODERM™ Regenerative Tissue Matrix Instructions for Use.
  • For Systagenix

    Q: How does the new Systagenix packaging affect me?

    A: The New Packaging is part of the new re-brand for Systagenix; this will make choosing your wound care products even easier!

    Customer Information: Change of packaging

    Systagenix are proud to announce a bold new change of our product packaging. 
    The following Systagenix products will be affected by this change from the middle of November onwards:
    • TIELLE™ Hydropolymer Adhesive Dressing (Classic, Lite, Max, Ultra, Plus, Border, Packing, Sacrum, Plus Sacrum, and Plus Heel) 
    • ADAPTIC™ Non-Adhering Dressing
    • SILVERCEL™ Non-Adherent Antimicrobial Alginate Dressing with EASYLIFT™ Precision Film Technology
    • SILVERCEL™ Antimicrobial Alginate Dressing
    • PROMOGRAN™ Matrix Wound Dressing

    These changes will only affect the packaging; the products themselves will remain the same fantastic dressings they have always been. 

    Q: Can I send my old packaging back?
    A: All product attributes remain unchanged and so it will not be necessary to return old packaging. The product packaging change does not impact the Systagenix returns policy.

    Q: Why is the packaging changing?

    A: This is part of a wider change in Systagenix branding and is a part of our communications strategy. We have aimed to make the product name as clear as possible on the packaging to ensure supply and stock management is easier for you.

    Q: What should I do with product in old packaging?

    A: All product attributes remain unchanged, and so it will not be necessary to return old packaging. Only the outer packaging is changing. What is inside is the same.

    Q: Will this create supply issues?

    A: We do not envisage there will be any supply problems as a result of the packaging change.

    Q: What is changing?

    A: The graphics of the carton, the inner pouch, and instructions for use for the Advanced Wound Care product range. The products themselves, size, and registration will remain unchanged.

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