Ion exchange absorbent systems, apparatuses, and methods
AssigneeKCI Licensing, Inc.
InventorsChristopher Brian LOCKE, Brian ANDREWS, Timothy Mark ROBINSON
Life of this patent
Estimating the term…
Abstract
Systems, methods, and apparatuses for increasing liquid absorption are described. Some embodiments may include a dressing having an absorbent layer containing super-absorbent material as well as ionic-exchange media (IEM). In some embodiments, the absorbent layer may include absorbent fibers. The absorbent fibers may each include a super-absorbent core surrounded by a water-permeable layer onto which ionic-exchange media (IEM) may be grafted. As liquid comes into contact with the IEM, its ionic nature may be reduced, therefore protecting the absorbent qualities of the super-absorbent material.
Claims41
A fiber, comprising:
- an absorbent core;
- a filter layer disposed around the absorbent core;
- and
- an ion-exchange media disposed in the filter layer and adapted to reduce an ionic concentration of a fluid.
An absorbent dressing for treating a tissue site, comprising:
- an ion-exchange media adapted to reduce an ionic concentration of fluid from the tissue site;
- and
- an absorbent adapted to absorb fluid with the reduced ionic concentration.
A system for treating a tissue site, comprising:
- a reduced-pressure source;
- an absorbent layer adapted to be in fluid communication with the reduced-pressure source, the absorbent layer comprising:
- an absorbent material adapted to absorb fluid from the tissue site, and
- an ion-exchange media adapted to reduce an ionic concentration of the fluid;
- and
- a drape adapted to cover the absorbent layer.
A container for storing fluids from a tissue site, comprising:
- a body having an interior, a fluid inlet, and a fluid outlet;
- and
- an absorbent layer disposed in the interior, the absorbent layer comprising:
- an absorbent material, and
- an ion-exchange media adapted to reduce an ionic concentration of fluid in the interior.
A method for treating a tissue site, comprising:
- disposing an absorbent layer proximate to the tissue site;
- and
- attaching the absorbent layer to the tissue site with a drape, wherein the absorbent layer comprises:
- an absorbent material, and
- an ion-exchange media adapted to reduce an ionic concentration of a fluid drawn into the absorbent layer.
A system for treating a tissue site, comprising:
- a reduced-pressure source for providing reduced pressure;
- a fluid storage member adapted to be in fluid communication with the tissue site and the reduced-pressure source to collect fluid from the tissue site;
- a manifold adapted to receive reduced pressure and distribute the reduced pressure across the tissue site;
- a drape adapted to cover the manifold and provide a substantially fluid-tight seal at the tissue site;
- and
- an absorbent layer adapted to be in fluid communication with the reduced-pressure source, comprising:
- a carrier, and
- a plurality of multi-layer fibers, wherein each multi-layer fiber comprises an ion-exchange media disposed around an absorbent core.
(canceled)
Dependencies are inferred from the claim text.