Wound dressing apparatus
The wound dressing apparatus facilitates administration of combined negative pressure and positive pressure treatment at a wound site. The wound dressing apparatus includes a wound dome having a substantially hollow dome interior, a manifold that is in fluid communication with the dome interior, a first passage adapted to connect to a negative pressure source to the dome interior, and a second passage adapted to connect to a positive pressure source to the manifold.
1. A wound dressing apparatus comprising:
a domed chamber having a chamber wall defining a dome apex, a peripheral edge, and a substantially hollow dome interior;
a flange extending away from the peripheral edge of the domed chamber;
an annular manifold along the peripheral edge of the domed chamber, the manifold comprising a plurality of apertures in communication with the dome interior;
a first passage having a first end adapted to connect to a negative pressure source and a second end in communication with the dome interior; and
a second passage having a first end adapted to connect to a positive pressure source and a second end in communication with the manifold, wherein the second passage passes along a centerline of the domed chamber and proximate to the apex of the domed chamber.
2. The apparatus of claim 1 , wherein the manifold is formed integrally with the domed chamber.
3. The apparatus of claim 1 , wherein the manifold is formed integrally with the flange.
4. The apparatus of claim 1 , wherein the manifold has an annular shape.
5. The apparatus of claim 1 , wherein the first passage extends partially across the chamber wall.
6. The apparatus of claim 1 , wherein the second end of the first passage is connected proximate to the apex of the domed chamber.
7. The apparatus of claim 1 , wherein a portion of the first passage is formed integrally with the domed chamber.
8. The apparatus of claim 1 , wherein a portion of the second passage is formed integrally with the domed chamber.
9. The apparatus of claim 1 , wherein the chamber wall comprises a pliable material.
10. The apparatus of claim 1 , wherein the chamber wall comprises silicone rubber.
11. The apparatus of claim 1 , further comprising an adhesive provided on at least a portion of the flange.
12. The apparatus of claim 11 , wherein the adhesive is effective to create a seal between the flange and a wound drape.
13. A wound dressing apparatus comprising:
a domed chamber having a chamber wall defining a dome apex, a peripheral edge, and a dome interior;
a flange extending away from the peripheral edge of the domed chamber;
a manifold formed within the domed chamber, the manifold comprising a plurality of channels in communication with the dome interior;
a first passage having a first end adapted to connect to a negative pressure source, the first passage comprising a plurality of channels in communication with the dome interior; and
a second passage having a first end adapted to connect to a positive pressure source and a second end in communication with the manifold, wherein the second passage passes along a centerline of the domed chamber and proximate to the apex of the domed chamber.
14. The apparatus of claim 13 , wherein the first passage extends partially across a portion of the domed chamber.
15. The apparatus of claim 13 , wherein the manifold is formed integrally with the domed chamber.
16. The apparatus of claim 13 , wherein the manifold spans the circumference of the dome interior.