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Ingestible sensors could make it much easier for patients who take large amounts of medicines to keep track of their doses.
The patient swallows the sensor chip which is embedded in a pill. The chip travels to the stomach, where it is activated by the stomach fluids and transmits an ID signal with a time stamp. A patch worn by the patient picks up the ID and time stamp information, as well as data collected by the patch such as activity and heart rate, and sends the information wirelessly to a mobile phone application. The information can then be shared, if desired, with the patient's doctors and caregivers.