Design and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle

Abstract This paper presents the performance analysis of the system for real-time reconstruction of the shape of the rigid medical needle used for minimally invasive surgeries. The system is based on four optical fibers glued along the needle at 90 degrees from each other to measure distributed stra...

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Autores principales:	Aizhan Issatayeva, Aida Amantayeva, Wilfried Blanc, Daniele Tosi, Carlo Molardi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c83012b900b64668b1417cef9b8a7082
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spelling	oai:doaj.org-article:c83012b900b64668b1417cef9b8a70822021-12-02T16:45:21ZDesign and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle10.1038/s41598-021-88117-72045-2322https://doaj.org/article/c83012b900b64668b1417cef9b8a70822021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88117-7https://doaj.org/toc/2045-2322Abstract This paper presents the performance analysis of the system for real-time reconstruction of the shape of the rigid medical needle used for minimally invasive surgeries. The system is based on four optical fibers glued along the needle at 90 degrees from each other to measure distributed strain along the needle from four different sides. The distributed measurement is achieved by the interrogator which detects the light scattered from each section of the fiber connected to it and calculates the strain exposed to the fiber from the spectral shift of that backscattered light. This working principle has a limitation of discriminating only a single fiber because of the overlap of backscattering light from several fibers. In order to use four sensing fibers, the Scattering-Level Multiplexing (SLMux) methodology is applied. SLMux is based on fibers with different scattering levels: standard single-mode fibers (SMF) and MgO-nanoparticles doped fibers with a 35–40 dB higher scattering power. Doped fibers are used as sensing fibers and SMFs are used to spatially separate one sensing fiber from another by selecting appropriate lengths of SMFs. The system with four fibers allows obtaining two pairs of opposite fibers used to reconstruct the needle shape along two perpendicular axes. The performance analysis is conducted by moving the needle tip from 0 to 1 cm by 0.1 cm to four main directions (corresponding to the locations of fibers) and to four intermediate directions (between neighboring fibers). The system accuracy for small bending (0.1–0.5 cm) is 90 $$\%$$ % and for large bending (0.6–1 cm) is approximately 92 $$\%$$ % .Aizhan IssatayevaAida AmantayevaWilfried BlancDaniele TosiCarlo MolardiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Aizhan Issatayeva Aida Amantayeva Wilfried Blanc Daniele Tosi Carlo Molardi Design and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle
description	Abstract This paper presents the performance analysis of the system for real-time reconstruction of the shape of the rigid medical needle used for minimally invasive surgeries. The system is based on four optical fibers glued along the needle at 90 degrees from each other to measure distributed strain along the needle from four different sides. The distributed measurement is achieved by the interrogator which detects the light scattered from each section of the fiber connected to it and calculates the strain exposed to the fiber from the spectral shift of that backscattered light. This working principle has a limitation of discriminating only a single fiber because of the overlap of backscattering light from several fibers. In order to use four sensing fibers, the Scattering-Level Multiplexing (SLMux) methodology is applied. SLMux is based on fibers with different scattering levels: standard single-mode fibers (SMF) and MgO-nanoparticles doped fibers with a 35–40 dB higher scattering power. Doped fibers are used as sensing fibers and SMFs are used to spatially separate one sensing fiber from another by selecting appropriate lengths of SMFs. The system with four fibers allows obtaining two pairs of opposite fibers used to reconstruct the needle shape along two perpendicular axes. The performance analysis is conducted by moving the needle tip from 0 to 1 cm by 0.1 cm to four main directions (corresponding to the locations of fibers) and to four intermediate directions (between neighboring fibers). The system accuracy for small bending (0.1–0.5 cm) is 90 $$\%$$ % and for large bending (0.6–1 cm) is approximately 92 $$\%$$ % .
format	article
author	Aizhan Issatayeva Aida Amantayeva Wilfried Blanc Daniele Tosi Carlo Molardi
author_facet	Aizhan Issatayeva Aida Amantayeva Wilfried Blanc Daniele Tosi Carlo Molardi
author_sort	Aizhan Issatayeva
title	Design and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle
title_short	Design and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle
title_full	Design and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle
title_fullStr	Design and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle
title_full_unstemmed	Design and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle
title_sort	design and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c83012b900b64668b1417cef9b8a7082
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Design and analysis of a fiber-optic sensing system for shape reconstruction of a minimally invasive surgical needle

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