The first cardiovascular device developed with shape memory was the Simon filter. The Simon filter represents a new generation of devices that are used for blood vessel interruption in order to prevent pulmonary embolism. Persons who expectancy. The traditional surgery that fixes this anomaly is extremely invasive and dangerous. The thorax of the patient is opened and the atrial hole is sewn. Because of the intrinsic risks of this surgery, several problems might occur. The atrial septal occlusion device is an alternative to this surgery. This device is composed of SMA wires and a waterproof film of polyurethane. As is the case for the Simon filter, the surgery to place this device exploits the shape memory effect, being much less invasive than the traditional one. First, one half of the device is inserted through a catheter by the vena cava up to the heart, in its closed form. Then, it is placed on the atrial hole and opened, recovering its original shape. Next, the second half of the device is placed by the same route as the first one, and then both halves are connected. This procedure seals the hole, avoiding blood flow from one atrium to the other. It is expected that the device will stay in the heart for an indefinite period of time since the heart tissue regenerates. Figure 6A presents a scheme of the heart with the device in place. Self-expanding stents, named after the dentist C.T. Stent, are another important cardiovascular application that is used to maintain the inner diameter of a blood vessel. Actually, these devices are used in several situations in order to support any tubular passage such as the esophagus and bile duct, and blood vessels such as the coronary, iliac, carotid, aorta and femoral arteries. In this type of application, a cylindrical scaffold with shape memory is placed, for example, inside a blood vessel through a catheter. Initially, this scaffold is pre-compressed in its martensitic state. As the scaffold is heated, due to the body temperature, it tends to recover its original shape, expanding itself. This device can be used not only in the angioplasty procedure, in order to prevent another obstruction of a vessel, but also in the treatment of aneurysms for the support of a weakened vessel.