High resolution detector for micromotion in smooth muscle strips

Author

Westerhof, B.E. ; De Bakker, J.V. ; Van Duyl, W.A.

Author_Institution

Dept. of Obstetrics & Gynaecology, Erasmus Univ., Rotterdam, Netherlands

Volume

1

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

138

Abstract

A recent pilot study involving patients has shown that there is a relation between local contraction activity in the urinary bladder wall and the sensation of urge. Although there is a relation between local contractions and bladder pressure, bladder pressure turns out not to correlate well with urge sensation. In order to be able to investigate these small local contractions and the influence of drugs on them, a measurement system has been built with a high spatial resolution (15 μm). The system is based on the use of 16 flexible optical fibres positioned on the surface of the tissue and a position sensitive photo detector. Temporal resolution is 1 Hz which is enough for smooth muscle contractions (0.01 to 0.1 Hz). With this system local motion patterns have been recorded in bladder strips

Keywords

biomechanics; biomedical equipment; biomedical measurement; mechanical variables measurement; muscle; 0.01 to 0.1 Hz; 1 Hz; bladder strips; drugs influence; flexible optical fibres; high resolution detector; local contraction activity; medical instrumentation; micromotion; position sensitive photo detector; small local contractions; smooth muscle strips; spatial resolution; temporal resolution; tissue surface; urge sensation; urinary bladder wall; Biomedical optical imaging; Bladder; Detectors; Light emitting diodes; Muscles; Optical fibers; Optical saturation; Optical sensors; Spatial resolution; Strips;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.656885

Filename

656885