Ingestible Electronics
The first “digital pills” were invented in 1957. They used radio frequencies to transmit pressure and temperature readings from inside the stomach. These early devices were for proof of concept only, and never went into common use. Though the test was successful, the next major step for ingestible electronics wouldn’t come until 60 years later, when the FDA approved Aripiprazole (Abilify), which is used to treat schizophrenia. The pills contain a sensor activated by acid in the stomach. A patch worn on the rib cage picks up the sensor’s signal and transmits it to a smartphone app, allowing patients to record their medication compliance and share that information with their doctors and caregivers.
