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Vol. 213, Issue 6, June 2017, pp. 61-67

 

Bullet

 

Implantable Medical Device for Measuring Electrocardiogram to Improve Human Wellness
 

Jong-Ha Lee

Dept. of Biomedical Engineering, Keimyung University, Daegu, South Korea

E-mail: segeberg@gmail.com

 

Received: 2 June 2017 /Accepted: 28 June 2017 /Published: 30 June 2017

Digital Sensors and Sensor Sysstems

 

Abstract: Prolonged monitoring is more likely to diagnose atrial fibrillation accurately than intermittent or short-term monitoring. In this study, an implantable electrocardiograph (ECG) sensor to monitor atrial fibrillation patients in real time was developed. The implantable sensor is composed of a micro controller unit, an analog-to-digital converter, a signal transmitter, an antenna, and two electrodes. The sensor detects ECG signals from the two electrodes and transmits these to an external receiver carried by the patient. Because the sensor continuously transmits signals, its battery consumption rate is extremely high; therefore, the sensor includes a wireless power transmission module that allows it to charge wirelessly from an external power source. The integrated sensor has the approximate dimensions 0.12 in 1.18 in 0.19 in, which is small enough to be inserted into a patient without the need for major surgery. The signal and power transmission data sampling rate and frequency of the unit are 300 samples/s and 430 Hz, respectively. To validate the developed sensor, experiments were conducted on small animals.

 

Keywords: wireless health monitoring; electrocardiography; implant sensor; body sensor network; biochip.

 

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