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Product Type: Hydrocolloid
Other related brands
ConvaTec | Model: 403328 |
HCPCS : A6238 (Medicare DME co-payment per billable unit min / max: $4.74 / $5.58)

Description: DuoDERM Signal® Dressing is a hydrocolloid dressing

INTENDED USES: Lightly draining wounds: Venous Stasis Ulcers, Pressure Ulcers, Surgical Wounds, Dermal Wounds, Trauma Wound

CLAIMED BENEFITS: Debride (autolytic), Bacterial Barrier, Absorb (light drainage)

OPTION: 20x20cm (8" x 8"), box of 5

Wound Reference does not produce, market, re-sell or distribute health care goods or services consumed by, or used on, patients.
Application: Can be used as primary dressing
Application: Can be used as secondary dressing
Depth: Full thickness (deep)
Depth: Partial thickness (shallow)
Exudate: Dry
Exudate: Low
Exudate: Moderate
Exudate: High
Indications: May be applied over infected tissue
Indications: May be used to pack deep wounds
Indications: May be used under compression
Medicare freq of replacement: 1/day
Medicare freq of replacement: every other day
Medicare freq of replacement: 3/week
Medicare freq of replacement: 1/week
Wear time: Up to 1 day
Wear time: Up to 3 days
Wear time: Up to 7 days
Wear time: More than 7 days

Hydrocolloid dressings turn from solid to gel when wound fluid is absorbed. The gel creates a warm, moist environment that helps clean the wound from debris and dead tissue and promote healing. These dressings may by occlusive or semi occlusive and are supplied in sheets, paste, wafers or powders. 

Advantages: Hydrocolloid dressings are good for wounds with light to moderate amounts of wound fluids. They are available in many forms (adhesive or non-adhesive pad, paste, powder) but most commonly as self-adhesive pads.

Hydrocolloids reduce wound pain, and their barrier properties allow the patient to bathe or shower. If transparent, this allows for observation of the healing process.

Hydrocolloids may be used as primary or secondary dressings. A primary dressing is the first dressing that covers a wound. It is placed directly on top of the wound to cover it and to manage any oozing or bleeding. A secondary dressing covers the primary dressing. The primary dressing's purpose is to be absorbent and nonadhering. 

Hydrocolloids may be used over partial or full-thickness wounds. Partial thickness wounds are wounds that extend only into the first two layers of skin, which are the dermis and epidermis. Full thickness wounds are wounds that extend beyond the two layers of skin (dermis and epidermis) and go into the subcutaneous tissue (muscle and fat) or even all the way to the bone or tendons. 

These dressings are appropriate to use on wounds with light to moderate drainage. In some instances, hydrocolloids may be used on wound beds covered with eschar to promote autolytic debridement.  Autolysis uses the body's own enzymes and moisture to re-hydrate, soften and finally liquefy hard eschar and slough. Eschar is defined as a black, dry and leathery and may form a thick covering similar to a scab over the wound bed below it.

Since multi-layer compression is commonly utilized in a wound clinic, hydrocolloids are advantageous as they can be applied underneath as primary dressings as long as the wound is not infected.

Disadvantages: Do not use hydrocolloids on wounds with heavy exudate, sinus tracts, infections or hypoxic wounds. Routinely monitor fragile peri-wound skin as the hydrocolloid may cause breakdown due to moisture. Hydrocolloids should not be used over exposed tendon, bone or 3rd degree burns. 

Do not use if dressing needs to be changed more than every 3 days

Use with caution on wounds that require frequent inspection (e.g, diabetic foot ulcers due to increased risk of infection)


If you have coverage through Medicare Part B, you may be eligible to have this product covered by Medicare. You will need a written order prescribed by a provider enrolled in Medicare, so that you can purchase this product at a Durable Medical Equipment store that accepts Medicare. You will need to pay deductibles and co-payment. The actual co-payment amount varies according to your state. If you do not have Medicare Part B or do not meet the requirements needed for coverage, you can find this product at pharmacies and medical supply stores. When available, please see pricing in "Other Stores" below.

Important Notice: The product information contained on this page, including the product images and additional product materials, was collected from various supplier sources. All product claims and specifications are those of the product suppliers. Every effort has been made to ensure the accuracy of the product information, however on occasion manufacturers may alter their products or packaging without notice. Wound Reference assumes no liability for inaccuracies or misstatements about products. The properties of a product may change or be inaccurate following the posting or printing of the product information in the document, either in the print or online version. Due to product changes, information listed in this document is subject to change without notice. We recommend that you always read labels, warnings and instructions for use before using a product. Content on this site is for reference purposes and is not intended to be a substitute for professional advice given by a physician or other licensed healthcare professional.
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