Oz told CNN affiliate PIX11 that when he arrived , the belt had been tied to the woman 's leg and he was just trying to tighten it to stop the bleeding . A taxi jumps a curb at a busy intersection and hits a British tourist and a cyclist , police believe . Dr. Oz and his student staffers run to the scene about a block away from their hotel . The tourist 's leg is amputated , and a good doctor uses his belt as a bandage . Oz , who saw the makeshift tourniquet , praises the doctor who jumped into action .
A taxi jumps a curb at a busy intersection and hits a British tourist and a cyclist , police believe . Dr. Oz and his student staffers run to the scene about a block away from their hotel . The tourist 's leg is amputated , and a good doctor uses his belt as a bandage . Oz , who saw the makeshift tourniquet , praises the doctor who jumped into action .