Negative pressure wound therapy device
A wound therapy device which may include a gasket distally spaced from an absorptive pad and an edge of a backing material. The device may also include an adaptor and tube portion with a connector located distally from a port hole in the backing material. In addition, a method of manufacturing a wound therapy device including using a port hole as a registration point.
1 . A wound therapy device comprising:
a backing material having a shape with an edge and a first side having an adhesive and a second side;
a port hole disposed in the backing material and an adaptor disposed in the port hole;
an absorptive pad disposed on the first side of the backing material such that a portion of the absorptive pad is disposed under the adaptor; and,
a gasket disposed on the backing material distally between the absorptive pad and the edge.
2 . The device of claim 1 wherein the gasket comprises a hydrogel.
3 . The device of claim 2 further comprising the absorptive pad having a shape and the gasket has a shape, and wherein the shape of the absorptive pad is substantially the same as the shape of the gasket.
4 . The device of claim 3 further comprising the shape of the absorptive pad being an oval.
5 . The device of claim 2 further comprising the gasket having a width of approximately ⅜ of an inch.
6 . The device of claim 5 further comprising the gasket having a thickness of approximately 30 mils.
7 . The device of claim 1 further comprising the gasket being disposed immediately adjacent the absorptive pad.
8 . The device of claim 1 further comprising a wound interface layer disposed around an exposed portion of the absorptive pad.
9 . The device of claim 8 wherein the wound interface layer is a silver plated mesh.
10 . The device of claim 1 wherein the backing material is semi-permeable.
11 . The device of claim 1 further comprising a tubing portion having a first end communicating with the adaptor and second end communicating with a connector.
12 . The device of claim 1 wherein the adaptor further comprises fluid impermeable membrane.
13 . The device of claim 1 further comprising a viewing portal disposed in the backing material proximate the adaptor.
14 . The device of claim 1 further comprising a liner disposed on at least a portion of the adhesive.
15 . The device of claim 14 further comprising a second liner disposed on a portion of the edge.
16 . The device of claim 15 further comprising a third liner disposed on a second portion of the edge.
17 . A wound therapy device comprising:
a backing material having a shape with an edge and a first side having an adhesive and a second side;
a port hole disposed in the adhesive backing material, wherein an adaptor is disposed within the port hole and communicating with a connector with a tube having a length such that the connector is distally located form the port hole;
an absorptive pad disposed on the first side of the backing material such that a portion of the absorptive pad is disposed under the port hole; and,
a gasket disposed distally on the backing material between the absorptive pad and the edge.
18 . The device of claim 17 wherein the gasket comprises a hydrogel.
19 . The device of claim 17 further comprising the absorptive pad having a shape and the gasket has a shape, and wherein the shape of the absorptive pad is substantially the same as the shape of the gasket.
20 . The device of claim 19 further comprising the shape of the absorptive pad being an oval.
21 . The device of claim 18 further comprising the gasket having a width of approximately ⅜ of an inch.
22 . The device of claim 21 further comprising the gasket having a thickness of approximately 30 mils.
23 . The device of claim 17 further comprising the gasket being disposed immediately adjacent the absorptive pad.
24 . The device of claim 17 further comprising a mesh disposed around an exposed portion of the absorptive pad.
25 . The device of claim 17 wherein the port further comprises fluid impermeable membrane.
26 . The device of claim 17 further comprising a viewing portal disposed in the backing material proximate the adaptor.
27 . The device of claim 17 further comprising a liner disposed on at least a portion of the adhesive.
28 . The device of claim 27 further comprising a second liner disposed on a portion of the edge.
29 . The device of claim 28 further comprising a third liner disposed on a second portion of the edge.
30 . A method of making a wound therapy device comprising the steps of:
applying a port hole to an adhesive substrate;
using the port hole as a registration point for applying a gasket material;
applying a predetermined thickness of the gasket material in a predetermined shape at a distance around the port hole;
applying a liner to the adhesive substrate;
rolling the adhesive substrate.
31 . The method of claim 30 wherein the step of applying the gasket material comprises pouring the gasket material.
32 . The method of claim 30 further comprising the step of applying a second liner on a portion of an edge of the adhesive substrate.
33 . The method of claim 32 further comprising the step of applying a third liner on a second portion of the edge of the adhesive substrate.