Nowadays, the medical polymer materials might have a lot of side effect. Based on the superior biocompatibility and stable chemical properties, TPU can be used for the artificial heart and heart assist devices, medical catheters (infusion tube, central venous catheter), artificial blood vessel, orthopedic bandage, artificial limb, contraception product, medical adhesive, dressing, drug controlled-release carrier, contact lenses, medical artificial skin and etc. TPU has become the most promising green environmental protection material in 21st century.