Wound treatment apparatus and method

Patent metadata

Field	Value
Publication number	US-9545463-B2
Application number	US-201414496305-A
Country	US
Kind code	B2
Filing date	Sep 25, 2014
Priority date	Apr 28, 2004
Publication date	Jan 17, 2017
Grant date	Jan 17, 2017

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.

First claim

What is claimed is:

1. An apparatus for aspirating, irrigating and/or cleansing wounds, comprising:
a fluid reservoir configured to be connected by a fluid supply tube to a conformable wound dressing having a backing layer which is capable of forming a relatively fluid-tight seal or closure over a wound;
at least one device configured to move fluid through the wound dressing;
at least one outlet tube configured to aspirate fluid from the wound;
a manifold configured to be positioned in a fluid flow path configured to fluidically connect the wound dressing, the fluid supply tube, and the at least one outlet tube, the manifold comprising one or more conduits extending in a radial direction away from a middle portion of the manifold;
a negative pressure source configured to be connected to the at least one outlet tube, the negative pressure source configured to apply negative pressure to the wound by cycling between a first negative pressure level and a second negative pressure level; and
a control device configured to control fluid supply such that fluid from the fluid reservoir is supplied to the wound in a plurality of fluid supply cycles, each fluid supply cycle supplying a volume of fluid with a time period between fluid supply cycles.

2. The apparatus of claim 1 , comprising two or more of the following:
a heater configured to supply thermal energy to the fluid supplied from the fluid reservoir;
physiologically active agents configured to be supplied from the reservoir;
a biodegradable scaffold configured to be located under the backing layer and configured to be placed in contact with the wound; and
a module configured to apply stress to the wound.

3. The apparatus of claim 1 , comprising three or more of the following:
a heater configured to supply thermal energy to the fluid supplied from the fluid reservoir;
physiologically active agents configured to be supplied from the reservoir;
a biodegradable scaffold configured to be located under the backing layer and configured to be placed in contact with the wound; and
a module configured to apply stress to the wound.

4. The apparatus of claim 1 , comprising all of the following:
a heater configured to supply thermal energy to the fluid supplied from the fluid reservoir;
physiologically active agents configured to be supplied from the reservoir;
a biodegradable scaffold configured to be located under the backing layer and configured to be placed in contact with the wound; and
a module configured to apply stress to the wound.

5. The apparatus of claim 1 , further comprising a bleed valve configured to bleed fluid from the fluid flow path.

6. The apparatus of claim 1 , wherein the time period is configured to be input by a user.

Assignees

• Smith & Nephew

Inventors

• Blott Patrick Lewis
• Hartwell Edward Yerbury
• Lee-Webb Julian
• Nicolini Derek
• Green Clare
• Martin Robin Paul

Classifications

• A61F2013/0054

  for deep wounds · CPC title

• A61M2205/368

  by electromagnetic radiation, e.g. IR waves · CPC title

• A61N2005/0659

  infrared · CPC title

• A61M2205/3686

  microwaves · CPC title

• A61F7/034

  Flameless · CPC title