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Proceedings Paper

All optical indentation probe for endoscopic diagnosis of ostheoarthritis
Author(s): G. Marchi; M. Jost; A. Steinkopff; C. Prein; A. Aszodi; H. Clausen-Schaumann; J. Roths
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Paper Abstract

A novel kind of miniaturized, all optical probe concept to measure the elasticity of biological tissues is here presented. The probe is based on fibre Bragg grating sensors (FBG) inscribed in optical fibres. The measurement procedure exploits the high strain sensitivity of Bragg gratings. A study on the reproducibility, reliability, and resolution of the sensor is presented and a first measurement on bovine cartilage tissue is reported. A linear elastic model of the cartilage has been used to analyse the data. The results indicate a good agreement with previous values given in the literature for micro-indentation.

Paper Details

Date Published: 22 June 2015
PDF: 9 pages
Proc. SPIE 9529, Optical Methods for Inspection, Characterization, and Imaging of Biomaterials II, 95291A (22 June 2015); doi: 10.1117/12.2184687
Show Author Affiliations
G. Marchi, Hochschule für Angewandte Wissenschaften München (Germany)
M. Jost, Hochschule für Angewandte Wissenschaften München (Germany)
A. Steinkopff, Hochschule für Angewandte Wissenschaften München (Germany)
C. Prein, Hochschule für angewandte Wissenschaften München (Germany)
A. Aszodi, Ludwig-Maximilians-Univ. München (Germany)
H. Clausen-Schaumann, Hochschule für angewandte Wissenschaften München (Germany)
J. Roths, Hochschule für Angewandte Wissenschaften München (Germany)


Published in SPIE Proceedings Vol. 9529:
Optical Methods for Inspection, Characterization, and Imaging of Biomaterials II
Pietro Ferraro; Simonetta Grilli; Monika Ritsch-Marte; David Stifter, Editor(s)

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