Just a touch
Heart.Zone LLC has created a unique technology for detecting electro-cardio-gram (ECG) with an earbud.
This ECG monitoring technology uses two electrodes and could be integrated into most earbud designs.
The first "in-ear" electrode is the soft insert made from an electrically conductive material. It creates an electrical contact with concha of the ear.
The second "finger" electrode is located on the outer shell of the earbud.
When user touches the earbud ECG system detects electrical signals between in-ear & finger electrodes. These electrical signals translate into an ECG waveform.
The earbud transmits ECG waveform together with audio sounds, picked by a microphone via Bluetooth.
The Heart.Zone App on a smartphone or a smartwatch receives these data via Bluetooth, processes the ECG and audio sounds in real-time, displays ECG waveform, detects QRS, RR, Pulse, and other heart activity parameters.