Human venous valvular insufficiency has serious medical consequences including pain, disfiguration, and potentially deadly clotting. This Clinic project is concerned with designing a catheter-deployable solution (to be presented in prototype form with recommendations for manufacture) to the problem of venous valvular insufficiency. Aspects of this project include research of relevant physiology, materials, and valve designs, experimental determination of biomechanical properties, design revision, prototype creation, and synthesis of an appropriate prototype testing environment.