Patent ID: 7722582

Claim:
A therapeutic apparatus for stimulating healing of a wound in mammals, comprising: a suction pump for providing a negative pressure to be applied to the wound; a porous pad adapted to be positioned in contact with the wound and to be fluidly coupled to said suction pump for distributing the negative pressure to the wound, said porous pad including a porous body having an outer surface and an inner body, a portion of the outer surface being adapted for contact with the wound and having pores therein of a first average size, and the inner body having pores therein of a second average size, wherein the second average size is greater than the first average size; a drape adapted to cover said porous pad and the wound for providing a seal to contain the negative pressure; and a vacuum canister fluidly connected between said porous pad and said suction pump for collecting fluids drawn from the wound through said porous pad to said vacuum canister by the negative pressure.