SACRAL WOUND DRESSING AND METHOD OF MANUFACTURING A WOUND THERAPY DEVICE
A sacral wound therapy device which includes a backing material having an outer surface that is wipeable. A method of manufacturing a wound therapy device wherein a portion of a release liner remains on the backing material throughout at least a portion of the manufacturing process.
1 . A sacral wound therapy device comprising:
a backing material having an outer surface and an inner surface, the outer surface being a wipeable material and the inner surface having an adhesive;
a port hole disposed in the backing material; and,
an absorptive pad disposed on the inner surface of the backing material such that a portion of the absorptive pad is disposed under the port hole, the absorptive pad comprised of a material that passively draws exudates from a wound and retains the exudates while the device is subjected to negative pressure.
2 . The device of claim 1 wherein the backing material is comprised of a first layer and a second layer.
3 . The device of claim 2 wherein the first layer and second layer are held together by an adhesive.
4 . The device of claim 1 further comprising a gasket disposed on the inner side of the backing material between the absorptive pad and an edge of the backing material.
5 . The device of claim 4 further comprising the absorptive pad having a shape and the gasket having a shape, and wherein the shape of the absorptive pad is substantially the same as the shape of the gasket.
6 . The device of claim 5 further comprising the shape of the absorptive pad being a heart shape.
7 . The device of claim 4 further comprising the gasket being a hydrogel and having a width of approximately ¾ of an inch.
8 . The device of claim 7 further comprising the gasket having a thickness of approximately 40 mils.
9 . The device of claim 4 further comprising the gasket being disposed immediately adjacent the absorptive pad.
10 . The device of claim 3 further comprising a wound interface layer disposed over at least a portion of the absorptive pad.
11 . The device of claim 10 wherein the wound interface layer is a silver plated mesh.
12 . The device of claim 1 wherein the backing material is semi-permeable.
13 . The device of claim 1 wherein the port hole further comprises an adaptor with a fluid impermeable membrane.
14 . The device of claim 2 wherein the first layer is a perforated EVA medical tape and the second layer is a polyurethane medical tape.
15 . The device of claim 4 wherein the backing material has a skirt and a two piece release liner is disposed on the skirt.
16 . A method of manufacturing a negative pressure wound therapy device comprising the steps of:
providing a backing material with a shape having a perimeter and a release liner removably secured on a first side of the backing material by an adhesive;
removing a first portion of the release liner such that a second portion of the release liner remains on the perimeter of the backing material;
inserting an adaptor into the backing material;
placing an absorptive pad onto the backing material such that a portion of the absorptive pad is disposed on top of the adaptor;
placing a wound interface layer over the absorptive pad; and,
disposing a gasket on the backing material between the perimeter of the backing material and the wound interface layer.
17 . The method of claim 16 wherein the step of disposing a gasket comprises the steps of:
pouring a gasket material; and,
curing the gasket material.
18 . The method of claim 16 further comprising the steps of:
applying a second release liner to the backing material after the step of curing the gasket material; and,
cutting the negative pressure wound therapy device into a desired shape.
19 . The method of claim 18 further comprising the steps of:
sealing the negative pressure wound therapy device in a pouch after the step of cutting the negative pressure wound therapy device.
20 . The method of claim 18 wherein the second release liner is a two piece release liner.