It includes that high-strength alloy is reduced with the time that the present invention, which provides Medical Devices, in human body or animal body, controllable degradation rate, without generating thrombus and carrying out enhancing degradation since there are halogen components. In one embodiment, which forms bone anchoring device such as anchor, screw, plate, bracket or bar. In another embodiment, which is made into tissue fastening device, such as follows closely. In another embodiment, which is made into dental implant or stent.
