Biomedical tribology has developed rapidly with the joint efforts of medical and tribological researchers, and it concerns various kinds of friction that existed inside and outside the body, such as the friction of joints, the friction between skin and clothing, and the friction in the lumen (blood vessels, trachea, digestive tube, and excretory tube), which causes many physiological changes and diseases in the human body. Besides, many medical devices have been used to treat or alleviate various diseases. Biomedical tribology plays a vital role in solving the widespread tribological issues in the medical devices field, aiming to improve the performance of medical devices and prolong the service life.