Bevelled foam

Details Bevelled foam Bevelled foam

2011-01-25

2011-01-25

Brown, Michael A. (Department: 3772)

Surgery: splint, brace, or bandage

Bandage structure

Skin laceration or wound cover

C602S058000

Reexamination Certificate

active

07875761

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.

REFERENCES:
patent: 3978855 (1976-09-01), McRae et al.
patent: 3990440 (1976-11-01), Gaylord, Jr.
patent: 4055388 (1977-10-01), Johns
patent: 5195945 (1993-03-01), Sandvig et al.
patent: 5356372 (1994-10-01), Donovan et al.
patent: 5409472 (1995-04-01), Rawlings et al.
patent: 5643187 (1997-07-01), Naestoft et al.
patent: 5792089 (1998-08-01), Penrose et al.
patent: 6254554 (2001-07-01), Turtzo
patent: 2002/0160682 (2002-10-01), Zeng et al.
patent: WO 91/01706 (1991-02-01), None

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