DuoDERM Extra Thin Hydrocolloid Dressing 7.5 x 7.5 cm Lightly Exuding Wounds

Product Overview

DuoDERM Extra Thin 7.5 x 7.5 cm (ConvaTec, REF 187901, box of 5) is a square-format thin hydrocolloid dressing suited to smaller wound sites, paediatric wounds, and anatomically compact locations including the heel, malleolus, elbow, and digital dorsa. The wound contact layer consists of a hydrocolloid matrix of sodium carboxymethylcellulose (NaCMC), pectin and gelatin that interacts with wound exudate to form a soft, translucent gel, creating the moist wound environment specified by TIME wound bed preparation principles and the European Wound Management Association (EWMA) guidelines.

A thin, outer polyurethane film provides a vapour-permeable, waterproof barrier that remains intact against liquid ingress while allowing moisture vapour transmission to reduce maceration risk. The film provides a bacterial and viral barrier (>25 nm) when the dressing remains undamaged and unlifted. The low-profile and transparent construction permits visual wound inspection without dressing removal, and the dressing is sufficiently conformable to track body contours across joints without restricting range of motion. Peri-wound skin adhesion is atraumatic on removal, preserving epidermal integrity consistent with the ISTAP skin tear classification protocol recommendations.

Specifications

Clinical Indications

• Stage I and Stage II pressure ulcers on compact anatomical sites including heels, malleoli, elbows and digital dorsa (NPIAP/EPUAP/PPPIA classification)
• Dry to lightly exuding superficial wounds, minor abrasions, and skin tears (ISTAP Type 1 and 2) where a small-format conformable cover is clinically appropriate
• Prophylactic dressing over intact skin at elevated risk of device-related or friction pressure injury in paediatric and adult patients
• Post-dermatological procedure cover (cryotherapy, laser, minor shave excision) on compact wound sites
• Secondary cover dressing over Aquacel Hydrofiber or Aquacel Ag primary dressings on lightly exuding wounds at compact sites
• Donor sites in late-healing phase where light occlusion and waterproofing support re-epithelialisation

Frequently Asked Questions

Q: What is the difference between DuoDERM Extra Thin 7.5 x 7.5 cm and the 10 x 10 cm format?
A: Both formats use the identical ConvaTec hydrocolloid formulation and polyurethane film. The 7.5 x 7.5 cm (REF 187901, box of 5) is suited to smaller wound sites, paediatric use, and anatomically compact locations. The 10 x 10 cm (REF 187955, box of 10) is the standard format for larger or truncal wound sites. Clinicians should select the format that provides at least 1-2 cm of intact hydrocolloid border around the wound margin.

Q: How does DuoDERM Extra Thin differ from DuoDERM CGF (standard)?
A: DuoDERM Extra Thin is a lower-profile, thinner dressing intended for dry to lightly exuding wounds. DuoDERM CGF (Control Gel Formulation) is thicker and designed for moderate exudate wounds. Where exudate is minimal, Extra Thin provides a less bulky, more conformable option consistent with EWMA dressing selection guidance.

Q: When should the dressing be changed?
A: The dressing may remain in place up to 7 days per ConvaTec instructions for use. Change when the gel bubble approaches the dressing perimeter, when the dressing lifts at the edges, or when clinical signs of infection or peri-wound skin deterioration are present. Avoid routine daily changes to prevent epidermal stripping of peri-wound skin.

Q: Is the dressing waterproof for bathing?
A: Yes. The polyurethane outer film is waterproof when all edges remain adherent and intact. Patients should pat the dressing dry after bathing and inspect edge integrity. Lifting edges should be secured with secondary tape if dressing change is not immediately practical.

Q: How is DuoDERM Extra Thin procured for clinical use in Singapore?
A: DuoDERM Extra Thin is HSA Singapore class B listed and is supplied to restructured hospitals, polyclinics, GP clinics, community nursing teams, and homecare providers across Singapore. EMIS supplies genuine ConvaTec products with full lot traceability for institutional procurement, B2B clinic accounts, and individual patient orders.