Method and device for wound closure

• US 5,149,331 A
• Filed: 05/03/1991
• Issued: 09/22/1992
• Est. Priority Date: 05/03/1991
• Status: Expired due to Fees

• Current Assignee: Medchem Products, Inc. (Becton, Dickinson & Co)
• Original Assignee: Ariel Ferdman
• Inventors: Richards, William D., Kuo, Jing-wen, Swann, David, Ferdman, Ariel, Miller, David, Pinsky, Vladimir
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): REICHLE, KARIN M
• Application Number:
  US07/695,704
• Time in Patent Office: 508 Days
• Field of Search: 604/289, 604/296, 604/291, 604/304, 604/308, 604/309-313, 604/89.1, 604/318, 604/316, 604/902, 128/155, 128/399, 128/400, 128/881, 128/390, 128/82, 128/82.1, 606/213, 606/215, 606/216, 606/27, 606/138, 606/148, 606/149
• US Class Current: 604/290
• CPC Class Codes: A61F 13/00051 Accessories for dressings
• 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 13/0233 characterised by the oclusive layer skin contacting layer
• CPC Class Codes: A61F 13/05 specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
• CPC Class Codes: A61F 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00195 electric warmer
• CPC Class Codes: A61F 2013/0028 applying of mechanical pressure; passive massage
• CPC Class Codes: A61F 2013/00451 for surgical sutures, e.g. butterfly type
• CPC Class Codes: A61F 2013/00778 porous layers
• CPC Class Codes: A61M 1/915 Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 27/00 Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202
• CPC Class Codes: Y10S 604/902 Suction wands

Abstract

A method of treating a wound site wherein a porous, adhesive backed dressing is utilized. A vacuum and/or heat is applied to the wound site through the dressing so as to draw the tissue adjacent the wound site to the dressing so as to minimize trauma to the wound and increase the adherence of the adhesive.

Claims

1. A method of treating a would comprising the steps of:

applying a porous, adhesive backed dressing to a wound site; and

applying a vacuum to said wound site through said porous dressing to draw the tissue adjacent the wound into bonding contact with said adhesive without depressing said dressing into the wound.

2. The method in accordance with claim 1 wherein, the step of vacuum application further includes generating said vacuum with a vacuum line which when open has a negative air flow of approximately 1 standard cubic foot per minute or greater.

3. The method in accordance with claim 1 comprising the further step of applying heat to said dressing to cause said adhesive to flow and to drive moisture from the wound site and thereby improve bonding contact between said dressing and the tissue without depressing said dressing into the wound.

4. The method in accordance with claim 3 wherein said step of vacuum application is performed simultaneously with said step of heat application.

5. The method in accordance with claim 3 wherein said step of heat application further includes heating said dressing to between 40°

C. and 80°

C.

6. The method in accordance with claim 4 wherein said step of vacuum application is performed simultaneously with said step of heat application.

7. A method of treating a wound comprising the steps of:

applying a porous, adhesive backed dressing to a wound site; and

applying heat to said dressing through said porous dressing to cause said adhesive to flow and to drive moisture from the wound site and thereby improve bonding contact between said dressing and the tissue adjacent the wound site without depressing said dressing into the wound.

8. The method in accordance with claim 7 wherein said step of heat application further includes heating said dressing to be between 40°

C. and 80°

C.

9. A device for use with a porous, adhesive backed dressing for treating a wound site, said device including:

vacuum means for applying suction to said wound site through said porous dressing to draw the tissue adjacent the wound site into bonding contact with said adhesive without depressing said dressing into the wound; and

grip means for supporting said vacuum means.

10. A device in accordance with claim 9 further comprising a plate affixed to said grip means, and said vacuum means passing through said plate.

11. The device in accordance with claim 10 further comprising means for heating said plate so that heat is applied to the dressing to cause said adhesive to flow and to drive moisture from the wound site and thereby improve bonding contact between said dressing and the tissue without depressing said dressing into the wound.

12. A device for use with an adhesive backed porous dressing for treating a wound site said device including:

a grip;

a plate affixed to said grip; and

means for heating said plate so that heat is applied through said porous dressing to cause said adhesive to flow and to drive moisture from the wound site and thereby improve bonding contact between said dressing and the tissue adjacent the wound site without depressing said dressing into the wound.