Medical Device A diagnostic or therapeutic article that does not achieve any of its principal intended purpose through chemical action within or on the body (that is, not a drug or biologic). Such devices include diagnostic test kits, crutches, electrodes, pacemakers, arterial grafts, intraocular lenses, and orthopedic pins or other orthopedic equipment. (OHRP) A medical device is any instrument, apparatus, or other similar or related article, including component, part, or accessory, which is… intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of disease, in humans or other animals… The range of devices is broad and diverse, including bandages, thermometers, ECG electrodes, IUDs, cardiac pacemakers, and hemodialysis machines. For further information, see the following FDA guidance: Medical Devices Frequently Asked Questions about Medical Devices Significant Risk and Nonsignificant Risk Medical Device Studies