A medical device is any appliance, apparatus, software, material, or other articles, which may be used in isolation or combination (as defined by the manufacturer) by individuals for a medical purpose. Several articles fall under the definition of medical device and range from walking sticks to contact lenses to breast implants.Medical devices are products or equipment intended for a medical purpose. They must undergo a conformity assessment to demonstrate they meet legal requirements to ensure they are safe and perform as intended.