CareFusion is a leading manufacturer of IV pumps. The goal of this project is to provide CareFusion with information about fluid flow in subcutaneous tissue. The project has had three foci: (1) to conduct in vitro experiments on fluid flow in non-living tissue (2) to further develop two mathematical models of fluid flow in tissue from the Clinic project last year, and (3) to design a protocol for in vivo experiments to validate and inform these models.