Accurate and efficient fiber optical shape sensor for MRI compatible minimally invasive instruments

Heiden, Maurits S. van der; Henken, Kirsten; Chen, L. K.; Bosch, B.G.; Braber, R. van den; Dankelman, Jenny; Dobbelsteen, John J. van den

doi:10.1117/12.981141

Cited by 8 publications

(10 citation statements)

References 6 publications

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“…The 3D formation of a 1 × 3 coupler was instrumental in facilitating efficient and nearly balanced light coupling and collection from the laser-written optical circuit elements for convenient interrogation through a fusion-spliced SMF. This approach offered advantages in facile and flexible fabrication in comparison with prior demonstrations of shape sensors that were based on FBGs in multiple-fiber assemblies [31,32] or in a MCF [10,11]. The geometry of the nine axially and radially distributed BGW sensors enabled decoupling of the Bragg wavelength shifts for simultaneous strain and temperature measurements on which to infer real-time shape and thermal profile along the fiber length.…”

Section: Resultsmentioning

confidence: 99%

“…The present fiber sensor design (Fig. 1) offers several technical advantages over other shape sensors that have been based on FBGs deployed in either multiple optical fibers [31,32] or multicore optical fiber [10,11]. The 3D shape sensing demonstrated here serves as a more flexible, lightweight, and compact device than possible with assemblies of multiple optical fibers that must be precisely arranged and typically require bonding to a host structure.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Temperature-compensated fiber-optic 3D shape sensor based on femtosecond laser direct-written Bragg grating waveguides

Lee¹,

Mariampillai²,

Haque³

et al. 2013

Opt. Express

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Temperature-compensated 3D fiber shape sensing is demonstrated with femtosecond laser direct-written optical and Bragg grating waveguides that were distributed axially and radially inside a single coreless optical fiber. Efficient light coupling between the laser-written optical circuit elements and a standard single-mode fiber (SMF) was obtained for the first time by 3D laser writing of a 1 × 3 directional coupler to meet with the core waveguide in the fusion-spliced SMF. Simultaneous interrogation of nine Bragg gratings, distributed along three laterally offset waveguides, is presented through a single waveguide port at 1 kHz sampling rate to follow the Bragg wavelength shifts in real-time and thereby infer shape and temperature profile unambiguously along the fiber length. This distributed 3D strain and thermal sensor is freestanding, flexible, compact, lightweight and opens new directions for creating fiber cladding photonic devices for a wide range of applications from shape and thermal sensing to guidance of biomedical catheters and tools in minimally invasive surgery.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Temperature-compensated fiber-optic 3D shape sensor based on femtosecond laser direct-written Bragg grating waveguides

Lee¹,

Mariampillai²,

Haque³

et al. 2013

Opt. Express

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“…In the applications where FBGs are applied on the surface of an object at different locations, temperature compensation can be achieved by dual measurement methods such as dual-wavelength reference FBG with a fixed FBG [125], or use of a dual parametric temperature independent FBG [126,127]. In circumstances where the ambient temperature is relatively constant, insulation surrounding the FOSS can be sufficient for accurate measurement without the need for temperature compensation [128]. Another proposed technique is the use of TFBGs in a multimode fibre that is temperature independent in its measurement nature, as discussed in Section 6.4.…”

Section: Temperature Effectsmentioning

confidence: 99%

“…Park et al (2010) outlined a method for incorporating FBG based FOSSs into MRI guided biopsy needles [48]. Heiden et al (2012) presented a similar study to determine methodologies to achieve the accuracy required for biopsy needles with FBG based FOSSs [128].…”

Section: Medical Roboticsmentioning

confidence: 99%

Recent developments in fibre optic shape sensing

et al. 2018

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This paper presents a comprehensive critical review of technologies used in the development of fibre optic shape sensors (FOSSs). Their operation is based on multi-dimensional bend measurements using a series of fibre optic sensors. Optical fibre sensors have experienced tremendous growth from simple bend sensors in 1980s to full three-dimensional FOSSs using multicore fibres in recent years. Following a short review of conventional contact-based shape sensor technologies, the evolution trend and sensing principles of FOSSs are presented. This paper identifies the major optical fibre technologies used for shape sensing and provides an account of the challenges and emerging applications of FOSSs in various industries such as medical robotics, industrial robotics, aerospace and mining industry.

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“…The data points are associated to the B-spline points through the parameters (t i ) i=1,..,n d which reflect the distribution of the data points along the B-spline. These parameters were obtained using the centripetal parameterization method proposed by Lee [23] which is one of the most common method used in solving the parameterization problem [14]. The weight w k represents the contribution assigned to the data point X k during the smoothing.…”

Section: Needle Voxel Segmentationmentioning

confidence: 99%

Optimized needle shape reconstruction using experimentally based strain sensors positioning

Schaefer

Chagnon

Moreau–Gaudry

2019

Med Biol Eng Comput

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Needles are tools that are used daily during minimally invasive procedures. During the insertions needles may be affected by deformations which may threaten the success of the procedure. To tackle this problem, needles with embedded strain sensors have been developed and associated with navigation systems. The localization of the needle in the tissues is then obtained in real-time by reconstruction from the strain measurements, allowing the physician to optimize its gesture. As the number of strain sensors embedded is limited in number, their positions on the needle have a great impact on the accuracy of the shape reconstruction. The main contribution of this paper is a novel strain sensor positioning method to improve the reconstruction accuracy. A notable feature of our method is the use of experimental needle insertion data, which increases the relevancy of the resulting sensor optimal locations. To the best of author's knowledge no experimentally-based needle sensor positioning method has been presented yet. Reconstruction validations from clinical data show that the localization accuracy of the needle tip is improved by almost 40% with optimal locations compared to equidistant locations when reconstructing with two sensor triplets or more.

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Accurate and efficient fiber optical shape sensor for MRI compatible minimally invasive instruments

Cited by 8 publications

References 6 publications

Temperature-compensated fiber-optic 3D shape sensor based on femtosecond laser direct-written Bragg grating waveguides

Temperature-compensated fiber-optic 3D shape sensor based on femtosecond laser direct-written Bragg grating waveguides

Recent developments in fibre optic shape sensing

Optimized needle shape reconstruction using experimentally based strain sensors positioning

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