In the early application in the medical field, plastic is mostly used in a wide range of medical consumables, such as infusion sets, syringes, blood transfusions, blood collection needles, medical dressings and surgical wipes and gloves, etc. With the rapid development of medicine, the innovation and development of medical instruments constantly put forward new demands, from organ models, stents and large diagnostic instruments are inseparable from plastic. Due to the different complexity and damage conditions of human body structure, it has always been the focus of the medical industry to meet the personalized needs of medical treatment. With the development of 3D printing technology in the field of medical devices, medical plastic has been combined to meet the personalized needs of medical treatment. At present, it is mainly achieved by printing models of organs, including the skull, ribs, buttocks, knees and spine. Because of its excellent physical properties, polytetrafluoroethylene (PFA) is used to make artificial joints, etc., light weight, good stability, excellent self-lubrication and wear-resistant, the development of medical plastics is not only the driving force of the progress of the medical industry, but also a strong guarantee of our health.