Systems for providing fluid flow to tissues

A method for providing reduced pressure to a gap in the diaphysis of a bone to facilitate tissue growth, the method comprising:

• providing a scaffold having at least one channel at least partially covered by a chemical substance containing microbubbles;
• implanting the scaffold in the tissue site so that the at least one channel is in direct fluid communication with an intramedullary space of the tissue site;
• providing reduced pressure to the tissue site through the scaffold;
• and
• disrupting a substantial portion of the microbubbles to induce the flow of fluids within the scaffold.

A system for coupling nerve tissue and a microchip assembly, the system comprising:

• a source of reduced pressure;
• a biocompatible conduit adaptable for disposing adjacent nerve tissue, the conduit fluidly coupled to the source of reduced pressure;
• and
• a microchip assembly disposed in the conduit,
• wherein reduced pressure from the source of reduced pressure facilitates growth of the nerve tissue to operably connect to the microchip assembly.

A method for providing reduced pressure to a tissue site, the method comprising:

• providing a scaffold having an axial channel extending axially through the scaffold and at least one radial channel extending radially from the axial channel, wherein the at least one radial channel includes a bioabsorbable material that degrades at a different rate than the scaffold disposed therein;
• implanting the scaffold in the tissue site so that the axial channel is in fluid communication with the tissue site;
• applying reduced pressure to the scaffold;
• and
• degrading the material in the at least one radial channel at a different rate than the material of the scaffold.