Wound dressing and method of forming same

• US 4,872,450 A
• Filed: 07/26/1985
• Issued: 10/10/1989
• Est. Priority Date: 08/17/1984
• Status: Expired due to Fees

• Current Assignee: Eric D. Austad
• Original Assignee: Eric D. Austad
• Inventors: Austad, Eric D.
• Primary Examiner(s): Yasko, John D.
• Application Number:
  US06/759,628
• Time in Patent Office: 1,537 Days
• Field of Search: 128/89, 128/90, 128/82, 128/155, 128/156, 128/157, 128/DIG. 20
• US Class Current: 602/48
• CPC Class Codes: A61F 13/00063 comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic drug delivery dressings A61K9/70; chemical aspect of the additives A61L15/00
• CPC Class Codes: A61F 13/01021 characterised by the structure of the dressing
• CPC Class Codes: A61F 13/04 Plaster of Paris bandages; Other stiffening bandages A61F13/06 - A61F13/15 take precedence
• CPC Class Codes: A61F 2013/0011 spray
• CPC Class Codes: A61F 2013/00157 for burns or skin transplants A61F2013/00187 takes precedence; not adhering to the wound A61F2013/00217
• CPC Class Codes: A61F 2013/00519 for treating burn
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/00625 in situ
• CPC Class Codes: A61F 2013/00634 foam
• CPC Class Codes: A61F 2013/0074 containing foams
• CPC Class Codes: A61F 2013/0091 with disinfecting or anaesthetics means, e.g. anti-mycrobic
• CPC Class Codes: A61F 5/058 Splints
• CPC Class Codes: Y10S 602/90 Method of making bandage structure

Abstract

A conforming foam wound dressing and the method of forming it, wherein an enclosure is placed over the wounded area, an opening is formed in the enclosure and medical grade foam is injected through the opening. The foam is dispensible from a pressurized container and dries rapidly to form a solid body.

Claims

1. A dressing for a skin wound of the type having blood and drainage associated therewith, said dressing being of a size slightly larger than said wound and having a surface substantially covering said wound and engaging a continuous area of the skin around the wound and generally in the plane of the skin around the wound, to thereby form an enclosure for the wound, said enclosure having an opening in said surface forming a conduit through which foam can be injected so as to directly engage the wound, and a layer of medical grade foam directed through said conduit into engagement with said skin and contained thereagainst by said surface of said dressing in a covering relation with said wound at a position disposed between said wound and said enclosure, whereby the foam not only provides a protective cushion for the wound but also a volume for absorbing blood and drainage from the wound, and a medium into which antibiotics can be introduced.

2. A method for dressing a skin wound of the type having blood and drainage associated therewith comprising the steps of:

a. covering a continuous and generally flat circumferential area of the skin around the skin wound with an enclosure which engages the skin area and has a surface with an opening in said surface forming a conduit through which foam can be injected into direct engagement with the wound;

b. injecting through said conduit a medical grade foam of the type dispensable in substantially liquid form from a pressurized container and which dries rapidly to form a solid body, into engagement with said skin area in a covering relation with said wound at a position within said enclosure;

whereby the foam not only provide a protective cushion for the wound but also a volume for absorbing blood and drainage from the wound, and a medium into which antibiotics can be introduced, and

c. manually manipulating the enclousre so as to confine the foam between the enclosure and the wound.