Two therapeutic medical devices comprise our MegaVac Mechanical Thrombectomy System (MTS) for clot removal: the MegaVac Vacuum Extraction Thrombectomy (VET)™ Catheter and the ThromboWire™ Clot Retractor. The MegaVac VET features a unique funneled distal tip, that when deployed, occludes blood flow by creating a seal with wall apposition. The mouth of the catheter is positioned just proximal to the target thrombus. Using a manual syringe, clot is aspirated into the large mouth and through the catheter. With blood flow arrested, aspiration of the clot is highly efficient since the device prevents blood flow from interfering with suction. Safety is also enhanced with the stoppage of blood flow, preventing clot and debris from traveling downstream and causing damage.