Wafer having adhesive skin barrier layer

Details Wafer having adhesive skin barrier layer Wafer having adhesive skin barrier layer

1995-08-01

1997-03-11

Clarke, Robert A. H.

Surgery

Means and methods for collecting body fluids or waste material

Receptacle attached to or inserted within body to receive...

604336, 604344, A61F 544

Patent

active

056095856

ABSTRACT:
An adhesive wafer is disclosed having a thin barrier layer of soft, pliant adhesive material with particles of one or more hydrocolloids dispersed therein. A flexible and preferably stretchable cover layer extends along one side of the barrier layer and a removable release sheet protects the opposite side of the barrier layer. The wafer has a central zone and a relatively large outer zone surrounding that central zone, with the material of the barrier layer in the outer zone having generally uniform molecular orientations in radial directions over an arc of 360 degrees and being of relatively uniform tensile strength in all such radial directions. Also disclosed are injection/compression molding methods for making such wafers.

REFERENCES:
patent: 4738257 (1988-04-01), Meyer et al.
patent: 4867748 (1989-09-01), Samuelson
patent: 5133821 (1992-07-01), Jensen
patent: 5332613 (1994-07-01), Taylor et al.

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