Medical devices for treating vascular diseases and conditions, namely, medical pumps in the nature of pumps for circulating blood; control units being recorded software for controlling medical pumps; control units for medical pumps in the nature of controllers for controlling medical pumps for circulating blood; medical guidewires; femoral dilators; medical devices, namely, vascular introducer sheaths; medical introducer kits for positioning a pump in the circulatory system of a patient comprised primarily of access sheaths used to guide the insertion of other medical equipment for diagnostic or vascular interventions; insertion tools for placement of medical devices in the circulatory system; catheters for placement of medical pumps in the circulatory system