Mechanical wound therapy for sub-atmospheric wound care system
First Claim
1. A unified dressing assembly for a negative pressure wound care system, the assembly comprising:
- one or more layers for dispersing irrigant to a wound surface, the one or more layers being initially configured to cover a first surface area, wherein said one or more layers for dispersing irrigant comprises an irrigation layer;
a sealing layer configured to serve as an outer dorsal surface of said unified dressing assembly, wherein the sealing layer, in an unfolded state, is configured to cover a second surface area which is larger than the first surface area;
connection means for connecting a vacuum line from a vacuum source and an irrigant line from an irrigant source;
means for holding the unified dressing assembly together for placement on the wound surface as a single unit; and
a multi-layered dressing stack mechanically attached to said means for holding the unified dressing assembly together for placement on the wound surface as the single unit, the multi-layered dressing stack comprising;
an intermediate layer positioned below the sealing layer and mechanically mounted directly to a portion of said means for holding the unified dressing assembly together for placement that is positioned below the sealing layer;
a ventral layer positioned below the intermediate layer and mechanically mounted to said means for holding the unified dressing assembly together for placement; and
said irrigation layer defined between the intermediate layer and the ventral layer and including a plurality of irrigation flow paths in fluid communication said connection means.
2 Assignments
0 Petitions
Accused Products
Abstract
A mechanical wound therapy (MWT) system includes a connection for a vacuum source, which is routed through an airtight covering to a porous material positioned over the wound. The porous material may be a tubing network interspaced by a netting material constructed of biologically inert or bioabsorbable material. Alternatively, the porous material may be a layered unified dressing in which layers of mesh, netting or thin perforated film are separated and fixedly attached to functional elements of the dressing (e.g., irrigation tubing) or spacers. The vacuum and irrigation systems may be completely separated. An airtight sealing layer or foldable adhesive sealing layer may seal the dressing and facilitate sealing the dressing to the wound margins. Additional modular devices such as a wound approximating system, positive pressure bladders and adjuvant therapy modules as well as enhanced monitoring technology can be added to synergistically increase the capabilities of each dressing.
135 Citations
23 Claims
-
1. A unified dressing assembly for a negative pressure wound care system, the assembly comprising:
-
one or more layers for dispersing irrigant to a wound surface, the one or more layers being initially configured to cover a first surface area, wherein said one or more layers for dispersing irrigant comprises an irrigation layer; a sealing layer configured to serve as an outer dorsal surface of said unified dressing assembly, wherein the sealing layer, in an unfolded state, is configured to cover a second surface area which is larger than the first surface area; connection means for connecting a vacuum line from a vacuum source and an irrigant line from an irrigant source; means for holding the unified dressing assembly together for placement on the wound surface as a single unit; and a multi-layered dressing stack mechanically attached to said means for holding the unified dressing assembly together for placement on the wound surface as the single unit, the multi-layered dressing stack comprising; an intermediate layer positioned below the sealing layer and mechanically mounted directly to a portion of said means for holding the unified dressing assembly together for placement that is positioned below the sealing layer; a ventral layer positioned below the intermediate layer and mechanically mounted to said means for holding the unified dressing assembly together for placement; and said irrigation layer defined between the intermediate layer and the ventral layer and including a plurality of irrigation flow paths in fluid communication said connection means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 19, 20, 21, 22, 23)
-
-
13. A unified dressing assembly for a negative pressure wound care system, the assembly comprising:
-
one or more layers for dispersing irrigant to a wound surface, the one or more layers being initially configured to cover a first surface area, wherein said one or more layers for dispersing irrigant comprises an irrigation tube layer; a sealing layer configured to serve as an outer dorsal surface of said unified dressing assembly, wherein the sealing layer, in an unfolded state, is configured to cover a second surface area which is larger than the first surface area; connection means for connecting a vacuum line from a vacuum source and an irrigant line from an irrigant source; means for holding the unified dressing assembly together for placement on the wound surface as a single unit; and a multi-layered dressing stack mechanically attached to said means for holding the unified dressing assembly together for placement on the wound surface as a single unit, the multi-layered dressing stack comprising; said sealing layer comprising an airtight film material and having an adhesive configured to bond with a region of skin surrounding a wound, at least a portion of said means for holding the unified dressing assembly together passing through an aperture in a central region of the sealing layer; an intermediate netting layer positioned below the sealing layer and mechanically mounted directly to a portion of said means for holding the unified dressing assembly together for placement that is positioned below the sealing layer; a ventral netting layer positioned below the intermediate netting layer and mechanically mounted to said means for holding the unified dressing assembly together for placement; and said irrigation tube layer positioned between the intermediate netting layer and the ventral netting layer and including a plurality of irrigation tubes in fluid communication said connection means. - View Dependent Claims (15, 17)
-
Specification