Dressing assemblies for wound treatment using reduced pressure
AssigneeKCI Licensing, Inc.
InventorsRichard Marvin Kazala, Jr., Justin Alexander Long, Eric Woodson Barta, Li Yao, Robert Peyton Wilkes
Life of this patent
Estimating the term…
Abstract
A dressing assembly for use with a reduced pressure treatment system, the dressing assembly develops a directed force under reduced pressure. The directed force may be a radial force or a closing force. The dressing assembly includes a shaped dressing bolster having a shaped extremity that is operable to evenly deliver the radial force and to distribute reduced pressure. Numerous shapes may be used for the shaped extremity. The dressing assembly may further include an over-drape to assist in creating a seal over the shaped dressing bolster and against a portion of a patient's epidermis.
Claims22
A dressing assembly for use with a reduced pressure treatment system, the dressing assembly comprising:
- a shaped dressing bolster having a first surface, a second, inward-facing surface;
- an oblique extremity formed by a portion of the shaped dressing bolster;
- a comfort layer coupled to the second, inward-facing surface of the shaped dressing bolster;
- wherein the shaped dressing bolster is formed from a medical bolster material, the shaped dressing bolster for placing on the patient's epidermis;
- wherein the medical bolster material has a density greater than 20 kg/m3;
- and
- wherein the shaped dressing bolster has the characteristic of evenly distributing a directed force when under a reduced pressure.
A dressing assembly for use with a reduced pressure treatment system, the dressing assembly comprising:
- a shaped dressing bolster having an oblique extremity and having a first surface and a second, inward-facing surface;
- an over-drape disposed over the first surface of the shaped dressing bolster and coupled to a least a portion of the first surface of the shaped dressing bolster and wherein the over-drape extends beyond the shaped dressing bolster to form a drape extension, the drape extension having a first side and a second, inward-facing side;
- an adhesive perimeter strip coupled to the second side of the drape extension and operable to provide a seal between a patient and the over-drape;
- and
- an inner layer having a first surface and a second, inward-facing surface and wherein the first surface of the inner layer is coupled, at least in part, to a portion of the second surface of the shaped dressing bolster.
A reduced-pressure, force-generating dressing assembly for application on a patient, the dressing assembly comprising:
- a directed-force member having an oblique edge for evenly distributing a directed force when placed under reduced-pressure, the directed-force member having a top side and a bottom side;
- wherein the oblique edge of the directed-force member forms an angle with a reference line orthogonal to the patient's epidermis that is between 20 and 65 degrees;
- wherein the directed-force member is formed from a medical bolster material having a plurality of channels;
- a comfort layer coupled to the bottom side of the directed-force member;
- and
- a drape for providing a fluid seal over at least a portion of the directed-force member and a patient's epidermis.
Dependencies are inferred from the claim text.