Abstract: A removable implantable medical device (1) for the endovascular treatment of aneurysm, particularly of aneurysm of the thoracic aorta, comprising a supporting structure (2) tubular in shape and covered externally by a covering (3). The supporting structure (2) and the covering (3) define a duct (4) for blood circulation. The device is provided with extraction means (5) for extracting the duct (4) from the body of the subject in whom it is inserted. The extraction means (5) are associated with the duct (4) and communicate with the outside of the body.