Monitoring long-term uterine contractions

Author

Wu, Han-Chang ; Lin, Chao-Hung ; Young, Shuenn-Tsong ; Kuo, Te-Son

Volume

5

Issue

2

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

36

Lastpage

40

Abstract

The proposed system for long-term uterine contraction monitoring includes a pressure sensor and a portable monitor. The pressure sensor converts uterine activities into frequency variations from 1 to 2 MHz. The portable monitor is a microcontroller-based embedded system. We chose the 89c52 microcontroller because of its intelligence and functionality. A CMOS counter serves as a frequency down-converter for scaling down the frequency variation from 50 to 100 kHz

Keywords

CMOS integrated circuits; biomedical equipment; biomedical measurement; computerised instrumentation; computerised monitoring; patient diagnosis; portable instruments; pressure measurement; pressure sensors; CMOS counter; ambulatory uterine contraction monitoring; frequency variation from 50 to 100 kHz; frequency variations from 1 to 2 MHz; microcontroller-based embedded system; portable monitor; pressure sensor; Counting circuits; Energy management; Frequency; Intelligent sensors; Liquid crystal displays; Microcontrollers; Monitoring; Oscillators; Random access memory; Sensor systems;

fLanguage

English

Journal_Title

Instrumentation & Measurement Magazine, IEEE

Publisher

ieee

ISSN

1094-6969

Type

jour

DOI

10.1109/MIM.2002.1005658

Filename

1005658