Science Daily has an interesting article about a prototype Bluetooth/SMS enabled heart rate monitor:

A Bluetooth heart monitor could text your local hospital if you are about to have a heart attack, according to research published today in Inderscience's International Journal of Electronic Healthcare. The device measures electrical signals from the heart, analyses them to produce an electrocardiogram (ECG) and sends an alert together with the ECG by cell phone text message.

The process involves a couple of steps, but it's a pretty simple idea that might save lives in the near future:

Thulasi Bai and S.K. Srivatsa of the Sathyabama University in Tamil Nadu, have developed a wearable cardiac telemedicine system that allows post-cardiac patients renewed mobility.

Thulasi Bai's prototype Bluetooth heart monitor records periodically an electrocardiogram (ECG) and transmits the information via radio frequency signals to the patient's cell phone. The modified phone has an added analyzer circuit that checks the ECG signal for signs of imminent cardiac failure. If errant signals are detect, such as any arrhythmia, the cell phone alerts the patient and transmits a sample of the ECG signal to the nearest medical care centre, via the SMS text service, together with patient details.

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