Table 2.

Table 2 List of Medical Sensors and Devices

Invasive or Implantable Sensors	Non-Invasive Sensors
Glucose sensors	Blood pressure sensors
Blood gas sensors	Environmental sensors
Artificial pacemakers	Pedometers
Enzymatic sensors	iPod+Nike sports kit
Retinal implants	Electrocardiography (ECG)
Cochlear implants	SmartPill GI Monitoring System
Intracranial pressure sensors	Ultrasound, X-rays, MRI, etc.