A transducer for detection of fetal breathing movements

Author

Goovaerts, Henk G. ; Rompelman, Otto ; Van Geijn, Herman P.

Author_Institution

Dept. of Med. Phys., Free Univ., Amsterdam, Netherlands

Volume

36

Issue

4

fYear

1989

fDate

4/1/1989 12:00:00 AM

Firstpage

471

Lastpage

478

Abstract

A transducer for detection of fetal movements and sounds from the maternal abdominal wall is described. This transducer is based on an inductive principle. The compliance of the transducer should match the compliance of the maternal abdominal wall in order to detect the very weak acoustic signal caused by individual fetal breathing movements. The contact area of the transducer is supported on a membrane, the tension of which can be adjusted so as to match the compliances of tissue and transducer. The goal, here, is to investigate detection of fetal movements in order to monitor fetal condition and motility.<>

Keywords

biomechanics; biomedical equipment; transducers; contact area; foetal breathing movements detection; foetal condition monitoring; foetal mobility; inductive principle; maternal abdominal wall; membrane tension; tissue compliance; transducer; Abdomen; Acoustic devices; Acoustic signal detection; Acoustic transducers; Fetal heart; Fetal heart rate; Impedance; Ultrasonic imaging; Ultrasonic transducers; Ultrasonic variables measurement; Female; Fetal Monitoring; Humans; Pregnancy; Respiratory Function Tests; Transducers;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.18754

Filename

18754