Apparatus for aspirating, irrigating and cleansing wounds

An apparatus for treating a wound on a body with negative pressure, comprising:

• a substantially liquid impermeable backing layer capable of forming a relatively fluid-tight seal or closure over a wound;
• a manifold member positionable beneath the backing layer comprising a substantially planar flexible first layer and a substantially planar flexible second layer, wherein at least portion of a periphery of the first layer is sealable to at least a portion of a periphery of the second layer and the first layer is configured to be positionable substantially in contact with a surface of the body, the manifold member comprising a plurality of flow channels wherein the channels are interconnected only at a center portion of the manifold member and the channels each extend in a radial direction from the center portion of the manifold member;
• foam positionable between the backing layer and the manifold member;
• a plurality of apertures formed in the first layer, the apertures being in communication with the flow channels;
• a fluid pathway through at least a portion of the apparatus configured to channel at least fluid removed from the wound during operation of the apparatus to a waste canister;
• and
• an outlet conduit in fluid communication with the fluid pathway and adapted to receive a supply of negative pressure.

An apparatus for treating a wound with negative pressure, comprising:

• a substantially liquid impermeable backing layer capable of forming a relatively fluid-tight seal or closure over a wound;
• and
• a manifold member positionable beneath the backing layer, the manifold member having a middle portion and a plurality of separate and independently movable collection channels radiating from the middle portion of the manifold member;
• wherein:
• each of the collection channels is interconnected only at an end portion thereof with the middle portion of the manifold member and with the other collection channels, thereby being separate along the length thereof and defining a flow path that is separate along the length thereof from the other collection channels;
• and
• each of the collection channels has t least one opening therein, the openings being in communication with the collection channels and the wound so that negative pressure can be communicated through the collection channels and the openings to the wound and so that liquid can be removed from the wound through the collection channels.

An apparatus for treatment of a wound, comprising:

• a substantially liquid impermeable backing layer capable of forming a relatively fluid-tight seal or closure over a wound;
• a manifold member positionable beneath the backing layer comprising a substantially planar flexible first layer and a substantially planar flexible second layer in communication with the first layer, wherein at least a periphery of the first layer is in contact with a periphery of the second layer;
• a chamber defined between the first and second layers and bounded by the periphery of the first and second layers;
• and
• a plurality of apertures formed in the first layer, the apertures being in communication with said chamber, wherein the wound dressing is adapted to receive a supply of negative pressure.

An apparatus for treating a wound with negative pressure, comprising:

• a substantially liquid impermeable backing layer capable of forming a relatively fluid-tight seal or closure over a wound;
• and
• a member comprising a plurality of flow channels positionable beneath the backing layer;
• wherein:
• the channels are interconnected only at a center portion of the member;
• the channels each extend in a radial direction from the center portion of the member;
• and
• wherein the flow channels are configured to separate and move independently of each other.