Oxygen diffusive wound dressings and methods of manufacturing and use
Oxygen diffusive wound dressings and methods of manufacturing and use are described herein. The wound dressing may generally provide a ready supply of oxygen to a wound being treated via one or more oxygen conduits which are designed to pass oxygen from ambient air or other oxygen reservoirs into proximity to the wound, and may also provide for exudate removal through transecting channels in fluid communication with both the wound surface and a hydrophilic absorbent material.
1. A method of forming a wound dressing, comprising:
passing a length of multi-filament fiber through a coating solution such that the fiber is coated via the solution while maintaining continuous inter-filament spaces through the fiber;
arranging the length of multi-filament fiber to align in parallel upon a supporting frame such that a coated fiber array is formed;
securing the coated fiber array via one or more adhesive stripes placed transversely relative to the coated fiber array;
removing the coated fiber array from the supporting frame;
positioning the coated fiber array between an open area of a hydrophilic absorbent material envelope and a hydrophilic absorbent material such that the hydrophilic absorbent material is positioned at a distance from the open area; and
securing the hydrophilic absorbent material envelope such that the hydrophilic absorbent material is sealed therein while the coated fiber array remains exposed.
2. The method of claim 1 wherein the coating solution comprises a silicone solution.
3. The method of claim 1 wherein arranging the length of multi-filament fiber comprises arranging the multi-filament fiber upon a plurality of substrates having a resin film thereupon.
4. The method of claim 3 wherein arranging the length of multi-filament fiber comprises positioning the coated fiber array upon a rotatable spool.
5. The method of claim 4 wherein positioning the coated fiber array comprises forming a gap between each adhesive stripe when positioned upon the rotatable spool.
6. The method of claim 1 wherein removing the coated fiber array comprises cutting a length of the coated fiber array.
7. The method of claim 1 wherein arranging the length of multi-filament fiber further comprises aligning a length of hydrophilic multi-filament fiber adjacent to the length of coated fiber array.
8. The method of claim 7 wherein the coated fiber array and hydrophilic multi-filament fibers are intertwined, woven, or knit.
9. The method of claim 1 further comprising wetting the length of multi-filament filament prior to passing a length of multi-filament through a coating solution.
10. The method of claim 1 further comprising introducing a drug or agent into the hydrophilic absorbent material prior to securing the hydrophilic absorbent material envelope.
11. The method of claim 1 further comprising introducing a drug or agent into the hydrophilic absorbent material through a port defined along the hydrophilic absorbent material envelope.
12. The method of claim 1 further comprising forming a border around a periphery of the wound dressing.
13. The method of claim 1 further comprising micro-perforating the coated fiber array prior to positioning the coated fiber array.
14. The method of claim 1 further comprising modifying an external surface of the coated fiber array such that the external surface is hydrophilic.