Systems for providing fluid flow to tissues

A system for providing reduced pressure to a wound at a tissue site and facilitating growth of tissue within the wound, the system comprising:

• a pressure source for supplying the reduced pressure;
• a manifold in fluid communication with said pressure source for providing the reduced pressure to the tissue site;
• a scaffold in fluid communication with the manifold for delivering the reduced pressure to the wound, said scaffold having a structure to support the growth of tissue within the wound and at least one channel within the structure in fluid communication with the wound, the channel having a luminal surface;
• and
• a chemical substance covering at least a portion of the luminal surface and containing microbubbles adaptable to facilitate a flow of fluid from the wound through the at least one channel within said scaffold.

A method for providing reduced pressure to a wound at a tissue site and facilitating growth of tissue within the wound, the method comprising:

• utilizing a scaffold having at least one channel within the structure in fluid communication with the wound wherein the channel is at least partially covered by a chemical substance containing microbubbles;
• implanting the scaffold in the wound for providing a structure for the growth of the tissue and providing the reduced pressure to the tissue site;
• applying reduced pressure to the scaffold and the wound;
• and
• disrupting a substantial portion of the microbubbles to induce the flow of fluids within the scaffold, thereby facilitating the growth of tissue within the wound.