The definition of a medical device is any medical item that is put on you, or in you. Medical devices are used for the diagnosis, prevention, treatment, monitoring or alleviation of disease. These devices include items from simple tongue depressors to arthroscopy scopes for surgical procedures, such as knee and hip replacements.
The pandemic made us aware of other vital medical devices such as test kits, oxygen meters, ventilators, syringes and blood collection tubes. Today, the definition is becoming blurrier with smartwatches, activity trackers and other forms of wearable technology also being classified as medical devices.