WOUND TREATMENT APPARATUS AND METHOD

• US 20150080788A1
• Filed: 09/25/2014
• Published: 03/19/2015
• Est. Priority Date: 04/28/2004
• Status: Active Grant

• Current Assignee: Smith & Nephew PLC
• Original Assignee: Smith & Nephew PLC
• Inventors: BLOTT, PATRICK LEWIS, HARTWELL, EDWARD YERBURY, LEE-WEBB, JULIAN, NICOLINI, DEREK, GREEN, CLARE, MARTIN, ROBIN PAUL
• Granted Patent: US 9,545,463 B2
• Time in Patent Office: Days
• US Class Current: 604/30
• 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 13/02 Adhesive bandages or dressings
• 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 2007/0075 using a Peltier element, e.g. near the spot to be heated or cooled
• CPC Class Codes: A61F 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00221 biodegradable, non-irritating
• CPC Class Codes: A61F 2013/00357 implanted wound fillings or covers
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/0054 for deep wounds
• CPC Class Codes: A61F 7/034 Flameless
• CPC Class Codes: A61M 1/71 Suction drainage systems containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 1/774 Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
• CPC Class Codes: A61M 1/916 specially adapted for deep wounds
• CPC Class Codes: A61M 1/92 with liquid supply means
• CPC Class Codes: A61M 1/94 with gas supply means
• CPC Class Codes: A61M 1/964 having venting means on or near the dressing
• CPC Class Codes: A61M 2205/364 by chemical reaction
• CPC Class Codes: A61M 2205/3653 by Joule effect, i.e. electric resistance
• CPC Class Codes: A61M 2205/368 by electromagnetic radiation, e.g. IR waves
• CPC Class Codes: A61M 2205/3686 : microwaves
• 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: A61M 3/0283 : with at least two inner passageways, a first one for irrigating and a second for evacuating suction-irrigation systems A61M1/77; aspiration tips with fluid supply means A61M1/85; for negative pressure wound therapy A61M1/92
• CPC Class Codes: A61M 35/00 : Devices for applying media, e.g. remedies, on the human body devices for handling toiletry or cosmetic substances A45D; absorbent pads, e.g. swabs, A61F13/15
• CPC Class Codes: A61M 5/14 : Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
• CPC Class Codes: A61M 5/44 : having means for cooling or heating the devices or media
• CPC Class Codes: A61N 2005/0659 : infrared

Abstract

An apparatus and method for aspirating, irrigating and/or cleansing wounds is provided. The apparatus and method include one or more of the following: simultaneous aspiration and irrigation of the wound, supplying of thermal energy to fluid circulated through the wound; supplying physiologically active agents to the wound; a biodegradable scaffold in contact with the wound bed; and application of stress or flow stress to the wound bed.

Claims

1. An apparatus for aspirating, irrigating and/or cleansing wounds, comprising

a conformable wound dressing having a backing layer which is capable of forming a relatively fluid-tight seal or closure over a wound;

a fluid reservoir connected by a fluid supply tube to the wound dressing;

at least one device for moving fluid through the wound dressing;

at least one outlet tube for aspirating fluid from the wound;

means for aspirate flow regulation connected to the at least one outlet tube; and

means for supply flow regulation;

wherein the fluid is configured to be supplied to the wound dressing from the fluid reservoir via the fluid supply tube while fluid is simultaneously aspirated by the at least one device for moving fluid through the at least one outlet tube; and

further comprising at least one or more of the following;

means for supplying thermal energy to the fluid;

means for supplying physiologically active agents to the wound;

a biodegradable scaffold located under the backing layer and configured to be placed in contact with the wound; and

means for applying stress to the wound.

2. The apparatus of claim 1, comprising two or more of the following:

means for supplying thermal energy to the fluid;

means for supplying physiologically active agents to the wound;

a biodegradable scaffold located under the backing layer and configured to be placed in contact with the wound; and

means for applying stress to the wound.

3. The apparatus of claim 1, comprising three or more of the following:

means for supplying thermal energy to the fluid;

means for supplying physiologically active agents to the wound;

a biodegradable scaffold located under the backing layer and configured to be placed in contact with the wound; and

means for applying stress to the wound.

4. The apparatus of claim 1, comprising all of the following:

means for supplying thermal energy to the fluid;

means for supplying physiologically active agents to the wound;

a biodegradable scaffold located under the backing layer and configured to be placed in contact with the wound; and

means for applying stress to the wound.

5. The apparatus of claim 1, further comprising means for bleeding fluid.

6. The apparatus of claim 1, further comprising a manifold member positionable under the backing layer, the manifold member comprising one or more conduits extending in a radial direction away from a middle portion of the manifold member.