Portable device for heart rate monitoring based on impedance pletysmography

Author

Luna-Lozano, Pablo S. ; Garcia-Zetina, Oscar A. ; Perez-Lopez, J. Antonio ; Alvarado-Serrano, C.

Author_Institution

Fac. of Electron. Instrum., Univ. of Veracruz, Xalapa, Mexico

fYear

2014

fDate

Sept. 29 2014-Oct. 3 2014

Firstpage

1

Lastpage

4

Abstract

The design of a portable device for heart rate monitoring is described in this work. The cardiac activity is detected through the noninvasively measurement of blood volume changes in the forearm. When blood volume arrives to the forearm from the left ventricle, the electrical properties of the body segment change. These changes, that mainly comprise the electrical impedance of the tissue, are measured through the injection of a safely ac current and the detection of the voltage changes due to blood flow. Such a method is known as electrical impedance plethysmography. A peak-detection-software is used in a microcontroller to estimate the heart rate. Results of measuring the heart rate have shown accuracy that accomplishes the AAMI standards for heart rate monitors.

Keywords

blood; blood flow measurement; cardiovascular system; electric impedance imaging; medical signal processing; microcontrollers; patient monitoring; plethysmography; portable instruments; volume measurement; AAMI standards; blood flow; blood volume measurement; body segment change; cardiac activity; electrical impedance plethysmography; electrical properties; forearm; heart rate measurement; heart rate monitoring; left ventricle; microcontroller; peak-detection-software; portable device; Current measurement; Electrodes; Heart rate; Impedance; Instruments; Monitoring; Voltage measurement; Cardiovascular monitoring; Heart Rate monitor; IPG;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering, Computing Science and Automatic Control (CCE), 2014 11th International Conference on

Conference_Location

Campeche

Print_ISBN

978-1-4799-6228-0

Type

conf

DOI

10.1109/ICEEE.2014.6978307

Filename

6978307