Open AccessDesign of a Wireless Single Arm Electrocardiograph System
Author(s) -
K. Mohan Raj,
Tushar Sankaran J,
Soumya Samantaray,
Sayan Chakraborty,
Srishti Saxena
Publication year - 2021
Publication title -
biomedical and pharmacology journal/biomedical and pharmacology journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.191
H-Index - 18
eISSN - 2456-2610
pISSN - 0974-6242
DOI - 10.13005/bpj/2213
Subject(s) - software portability , computer science , sinoatrial node , signal (programming language) , wireless , electrocardiography , node (physics) , biomedical engineering , sinus rhythm , computer hardware , medicine , heart rate , cardiology , telecommunications , atrial fibrillation , physics , acoustics , blood pressure , programming language
Electrocardiograms (ECGs) are a method of assessment of cardiac electrical activity. It is the heart’s electrophysiological activity which occurs by the conduction of electrical impulses from the Sinoatrial (SA) node and the Atrioventricular (AV) node across the cardiac muscles and is displayed as a voltage-time graph. Conventionally, they have been acquired using a system of ten surface electrodes placed in different locations throughout the body in a 12-lead system. Single Arm ECG systems, where the ECG rhythm is obtained from only a single part of the body, replace the need for ten different electrodes to detect the heart's activity. Three pre-gelled electrodes are applied in different locations of the left arm to derive the sinus rhythm signal of a subject. An op-amp based hardware instrument has been developed for this purpose with active filters and amplifiers to perform signal conditioning. This paper demonstrates the implementation of a single arm hardware system of small size to improve portability, used as an ECG detection method and the results from various subjects taken at different gain values to improve the view of the signal, while also presenting a method to transmit the data of the signals wirelessly through an Internet-of-things (IoT) platform.