Beveled foam

Abstract

The invention relates to a foam dressing with a bevelled edge and where the density at the edge is higher than the density at the central part of the foam. The high density at the edges causes gel blocking of the wound exudate thereby preventing leakage of exudate through the edges. In a preferred embodiment the foam dressing is non-adhesive. The foam dressing may have a water-impervious backing layer, which extends all the way over the top of the dressing and down to the wound-contacting surface. The wound dressing is particularly useful in treatment of venous ulcers in connection with compression bandages, as the bevelling of the edges markedly reduces the indentations in the leg following use of this dressing when compared to a dressing with straight edges.

Description

technical field [0001] The present invention relates to a foam, typically a foam having a beveled portion as part of a wound dressing, and a method for preparing a foam, such as a polyurethane foam having a beveled portion. Background technique [0002] Venous leg ulcers can have a large amount of exudate. These wounds are often treated with highly absorbent wound dressings such as foam dressings. Due to the underlying venous insufficiency (venous insufficiency), the above management is combined with compression therapy. Therefore the optimal dressing on these wounds should be able to manage the exudate of the wound and should also be amenable to compression therapy. [0003] Compression therapy is used to assist the return of blood from the legs by applying external pressure on the legs. This pressure also creates pressure on the foam dressing and surrounding skin when used with venous ulcer treatments. [0004] Generally, foam dressings have a thickness of up to 6 mm. ...

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