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Proceedings Paper

Homogeneous catheter for esophagus high-resolution manometry using fiber Bragg gratings
Author(s): Sebastian Voigt; Manfred Rothhardt; Martin Becker; Thomas Lüpke; Christoph Thieroff; Andreas Teubner; Jan Mehner
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Paper Abstract

The high resolution manometry of the upper gastrointestinal tract is moving from research into clinical practice [1], [2]. Hence, there is a need for easy to use and patient friendly diagnosis devices for high resolution esophagus manometry. Besides established methods like perfusion manometry and solid state sensor manometry the use of optical fiber sensor catheters based on fiber Bragg gratings (FBGs) is gaining interest among physicians and medical equipment manufacturers [3], [4]. This paper presents design, prototyping and characterization of a fiber Bragg grating pressure sensor catheter. It uses a two layer polymer coating for the transformation of radial forces into axial strain of the optical fiber. The sensitivity with respect to pressure is in the range of 1 mmHg, the spatial resolution is provided by 32 sensors with a pitch of 10 mm. The coating technique is scalable to smaller diameters down to 0.5 mm and the flexibility is homogeneous over the whole length and can be adjusted by the choice of the coating materials.

Paper Details

Date Published: 24 February 2010
PDF: 10 pages
Proc. SPIE 7559, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications X, 75590B (24 February 2010);
Show Author Affiliations
Sebastian Voigt, Chemnitz Univ. of Technology (Germany)
Manfred Rothhardt, IPHT Jena (Germany)
Martin Becker, IPHT Jena (Germany)
Thomas Lüpke, Kunststoff-Zentrum in Leipzig (Germany)
Christoph Thieroff, Kunststoff-Zentrum in Leipzig (Germany)
Andreas Teubner, Klinikum Chemnitz gGmbH Medical Ctr. (Germany)
Jan Mehner, Chemnitz Univ. of Technology (Germany)

Published in SPIE Proceedings Vol. 7559:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications X
Israel Gannot, Editor(s)

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