Understanding Lunwell in five minutes

Lunwell is a sterile, single-layer, non-adherent antimicrobial wound-contact dressing made from silver-coated porous polyester. The key to understanding the product is to position it not as an absorbent pad, but as the active layer placed directly at the wound bed.

1. What is Lunwell?

The flexible polyester mesh carries a homogeneous elemental-silver coating. Its porous architecture conforms to the wound surface, while the silver surface makes Ag⁺ ions available in the moist environment to create an antimicrobial barrier. The product is sterile, EO-sterilised and single-use.

2. What is Lunwell not?

• It is not an absorbent pad that retains exudate.
• It is not a waterproof barrier film.
• It is not an adhesive fixation product.
• It is not a particle-release system; the bioavailable antimicrobial species is Ag⁺.

Lunwell is the wound-contact layer. Exudate passes through its pores into the secondary absorbent dressing, while fixation is provided by a separate component selected for the dressing system.

3. What does seven days mean?

Lunwell’s antimicrobial barrier effect lasts for seven days. Actual wear time is determined by wound appearance, exudate and clinical assessment; in appropriate conditions it may remain in place for up to seven days. Seven days therefore defines the performance window—it does not remove the need for monitoring.

4. Where is it used?

• Partial- or full-thickness wounds
• Second-degree burns
• Traumatic and surgical wounds
• Diabetic foot ulcers
• Infected wounds
• Donor- and graft-site wounds
• Pressure injuries

5. The technology in five steps

1. An open polyester mesh of 18–20 threads/cm² creates contact with the wound surface.
2. Elemental silver of at least 99% purity forms a homogeneous coating on the fibres.
3. The moist contact environment makes Ag⁺ ions bioavailable.
4. Ag⁺ acts on multiple essential bacterial targets.
5. The antimicrobial barrier continues across the seven-day design window.