Dressings
AssigneeSmith & Nephew United, Inc.
InventorsOwen L. Johns, Peter J. Metcalfe
Life of this patent
Estimating the term…
Abstract
There is described an adhesive dressing comprising a backing layer having a pressure sensitive adhesive layer over one surface thereof, a pad adhered to a portion of the adhesive layer a removable protector which covers the remainder of the adhesive layer and a conformable support layer which is lightly attached to the non-adhesive surface of the backing layer characterised in that the removable protector is provided with an aperture through which the pad is adhered to the adhesive layer.
Claims15
An adhesive dressing comprising a water vapor permeable, liquid water and bacteria impermeable backing layer having a pressure sensitive adhesive layer over one surface thereof and coextensive therewith, a pad adhered to a portion of the adhesive layer, a removable protector which covers the remainder of the adhesive layer, and a conformable support layer which is removably attached to the non-adhesive surface of the backing layer, said removable protector being provided with an aperture through which the pad is adhered to the adhesive layer.
A method of manufacturing an adhesive dressing comprising a water vapor permeable, liquid water and bacteria impermeable backing layer having a pressure sensitive adhesive layer over one surface thereof and coextensive therewith, a pad adhered to a first portion of the adhesive layer, a removable protector which covers the remainder of the adhesive layer, and a conformable support layer which is removably attached to the non-adhesive surface of the backing layer, said removable protector being provided with an aperture through which the pad is adhered to the adhesive layer, said method comprising:
- casting a solution of a polymer which is to form the backing layer onto a long strip of a film which is to form the support layer;
- casting or transfer coating an adhesive layer onto the backing layer such that the adhesive layer is coextensive with the backing layer;
- applying a pad to said first portion of the adhesive layer;
- and
- applying a removable protector to the adhesive layer in one or two pieces such that the removable protector covers the remainder of said adhesive layer.
A method of treating a wound or indwelling catheter site which comprises applying thereto an adhesive dressing comprising a water vapor permeable, liquid water and bacteria impermeable backing layer having a pressure sensitive adhesive layer over one surface thereof and coextensive therewith, a pad adhered to a portion of the adhesive layer, a removable protector which covers the remainder of the adhesive layer, and a conformable support layer which is removably attached to the non-adhesive surface of the backing layer, said removable protector being provided with an aperture through which the pad is adhered to the adhesive layer, said method comprising removing the removable protector, applying the adhesive layer to the skin, and then removing the support layer.
Dependencies are inferred from the claim text.