Perforated binder for laminated wound dressing
AssigneeConvatec Technologies Inc.
InventorsDavid DEWITT, Jonathan VEAL
Life of this patent
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Abstract
A method of manufacturing a laminated dressing that includes providing a lower layer having a fiber material that directly contacts a patient's skin and a wound area, providing an upper layer that has a foam or foam-like material that absorbs exudate and moisture, and binding the fiber-based lower layer and the foam-based upper layer with a binder layer comprising a binder material, the binder layer including a series of perforations. The perforations in the binder layer are formed by removing material from the binder layer with a pattern coated adhesive sheet prior to binding the fiber-based lower layer and the foam-based upper layer.
Claims12
A method of manufacturing a laminated dressing, comprising:
- providing a lower layer comprising a fiber material configured to directly contact a patient's skin and a wound area;
- providing an upper layer comprising a foam or foam-like material configured to absorb exudate and moisture;
- and
- binding the fiber-based lower layer and the foam-based upper layer with a binder layer comprising a binder material, the binder layer including a series of perforations;
- wherein the perforations in the binder layer are formed by removing material from the binder layer with a pattern coated adhesive sheet prior to binding the fiber-based lower layer and the foam-based upper layer.
A method of fabricating a laminated dressing comprising:
- bringing a binder layer into contact with a pattern-coated adhesive sheet;
- making a series of closed-loop cuts in the binder layer;
- and
- moving the binder layer away from the pattern-coated adhesive sheet to remove portions of the pattern coated adhesive with the binder layer to form a series of cleared perforations in the pattern-coated adhesive.
Dependencies are inferred from the claim text.