Design Validation Hemodynamic Study of New Kendall SCD SmartFlow Compression System

External intermittent pneumatic compression (IPC) systems are applied to subject legs and comprise of a controller, associated tubing set and single patient use disposable leg sleeves. The disposable sleeves are latex free and contain air bladder(s) that are inflated by the controller to provide compression to the legs/feet. These devices are designed to increase venous blood flow in at risk patients in order to help prevent Venous ThromboEmbolism (VTE), including Deep Vein Thrombosis (DVT) and Pulmonary Embolism (PE).