Adaptable topical hyperbaric device

• US 9,174,034 B2
• Filed: 11/06/2008
• Issued: 11/03/2015
• Est. Priority Date: 11/06/2007
• Status: Active Grant

• Current Assignee: AOTI, Inc.
• Original Assignee: AOTI, Inc.
• Inventors: Loori, Phillip, Hovorka, George
• Primary Examiner(s): Zalukaeva, Tatyana
• Assistant Examiner(s): TREYGER, ILYA Y
• Application Number:
  US12/291,317
• Publication Number:
  US 20090143751A1
• Time in Patent Office: 2,553 Days
• Field of Search: 604/23, 604/289, 604/305, 604/308
• US Class Current: 1/1
• CPC Class Codes: A61M 35/30 Gas therapy for therapeutic treatment of the skin
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A wound treatment device includes a seal of variable size for attaching the device to various locations on a patient for treatment of wounds or lesions. The seal has a plurality of weakened areas which allow portions of the seal to be removed for increasing the size of the seal opening to accommodate wounds or lesions of different size.

Claims

1. A hyperbaric wound treatment device comprising:

an enclosure defining an interior region providing a wound treatment chamber, said enclosure comprising first and second polymer sheets attached to each other about their respective edges;

a first circular line of perforations within said first sheet;

a second circular line of perforations within said first sheet arranged concentric with said first line of perforations outwardly thereof forming an annular region of said first sheet therebetween;

a first seal adhered to said first sheet radially inward of said first circular line of perforations;

a second seal adhered to said annular region of said first sheet and bound by said first and second circular lines of perforations, said first seal separable from said second seal;

said first and second seals each comprising a foam body having opposing first and second sides, a first adhesive layer adhered to said first side, a second adhesive layer adhered to said second side, and a release layer releasably adhered to said first adhesive layer, said first and second seals adhered to said first sheet by said second adhesive layer;

said first seal and an adhered portion of said first sheet adapted to be torn away together from a remainder of the first sheet along said first circular line of perforations;

said second seal and an adhered annular region of said first sheet adapted to be torn away together from a remainder of the first sheet together with the first seal and the adhered thereto portion of the first sheet along said second circular line of perforations;

a fluid inlet in communication with said wound treatment chamber for supply of a treatment medium thereto; and

a fluid outlet in communication with said wound treatment chamber for withdrawal of the treatment medium therefrom.

2. The wound treatment device of claim 1, wherein said first and second sheets are flat.

3. The wound treatment device of claim 1, further including a third circular line of perforation concentric with and radially inward of said first circular line of perforations, wherein said first sheet radially inward of said first seal is removable along said third circular line of perforations, thereby forming an opening in communication with said treatment chamber.

4. The wound treatment device of claim 1, wherein said first sheet includes an opening in communication with said treatment chamber radially inward of said first seal.

5. The wound treatment device of claim 1, further including a third seal adhered to said first sheet radially outward of said second line of perforations.

6. The wound treatment device of claim 1, wherein said first seal is separable from said second seal by a weakened region therebetween.

7. The wound treatment device of claim 6, wherein the weakened region comprises a plurality of perforations.

8. The wound treatment device of claim 6, wherein the weakened region comprises a tear line.

9. The wound treatment device of claim 6, wherein the weakened region comprises a cut line.