Wound treatment apparatus and method

A method of treating a wound to promote wound healing comprising:

• placing a wound contact layer in direct contact with the wound, the wound contact layer comprising a plurality of apertures configured to aspirate fluid from the wound;
• placing a solid wound filler into the wound, the wound filler configured to conform to a wound cavity;
• positioning a transducer between the wound filler and the wound contact layer;
• positioning a backing layer over the wound, the backing layer forming a sufficiently fluid-tight seal with healthy skin surrounding the wound;
• providing a fluid flow path comprising a fluid supply tube and a fluid offtake tube;
• causing movement of fluid through the fluid flow path to the wound and/or from the wound;
• and
• causing application of a high frequency vibrational energy field to the wound at a frequency and an intensity selected for a stimulation of a healing of the wound, wherein the high frequency vibration energy field is applied to the wound through the transducer while the fluid is moved through the fluid flow path.

An apparatus for treating a wound comprising:

• a wound dressing configured to be placed over the wound, the wound dressing comprising:
• a backing layer configured to form a sufficiently fluid-tight seal over the wound;
• a wound filler configured to be disposed in the wound under the backing layer and configured to conform to a shape of the wound and to allow movement of fluid from the wound;
• a wound contact layer configured to be positioned under the wound filler in direct contact with the wound and further configured to conform to the shape of the wound, the wound contact layer comprising a plurality of apertures configured to aspirate fluid from the wound;
• and
• a transducer configured to be positioned between the wound filler and the wound contact layer, the transducer configured to apply a high frequency vibrational energy field to the wound at a frequency and an intensity selected for a stimulation of a healing of the wound while fluid is being aspirated from the wound;
• a fluid offtake tube fluidically connected to the wound dressing, the fluid offtake tube configured to withdraw fluid from the wound;
• a pump configured to move fluid through the fluid offtake tube;
• and an ultrasound source configured to power the transducer.