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In this work, we propose and experimentally assess a shape-sensing guidance system based on four simultaneously scanned distributed optical fiber sensors based on high-scattering nanoparticle
In this work, an FPI based fiber optic force sensor design and its integration to an 18-gauge MRI compatible biopsy needle are presented. The custom designed FPI sensor provides a force
SEDI-ATI has acquired a very specific know-how in the integration of an optical fiber into a metallic needle. Fiber optic needles are suitable for diagnostic, dentistry
The probe comprises a needle having a needle tip formed to penetrate a tissue surface and an optical waveguide, e.g., optical fiber, arranged to transmit light through the needle.
This paper presents the methodology for temperature compensation of a system for shape reconstruction of a minimally invasive surgical needle. The system is based on four optical fibers
Biopsy needles with embedded force sensors can eliminate the needle deflection and the needle targeting failure risks during MRI guided biopsy procedures. Fabry-Pérot interferometry (FPI)
method to track the needle tip during ultrasound image-guided procedures is presented. This method involves the use of a fiber-optic ultrasound receiver that is affixed within the cannu a of a medical
This paper presents the in vitro and ex vivo accuracy of a new, real-time, ultrasound needle tip tracking system for guidance of fetal interventions. A fibre-optic, Fabry-Pérot interferometer
WO 2014/162289 Al describes another fiber optic needle probe, in particular a medical needle which comprises an elongate tube and at least one optical fiber, e.g. two fibers, arranged within the
Through expansive research in fiber optics, a plethora of bio-compatible, MRI-compatible, optical shape-sensors have been developed to provide real-time shape feedback, such as single-core and
Fiber optic force sensors can be used under MRI without causing any danger or any disruption on the MR image. Applied axial force measurement during needle guidance can be performed by Fabry
We describe recent innovation in the design of these probes, including novel fiber-optic configurations to achieve extended depth of focus, and the use of double-clad fiber to enable the first dual-modality
Optical Fiber -Based Needle Shape Sensing: Three-channel Single Core vs. Multicore Approaches Published in: 2023 International Symposium on Medical Robotics (ISMR)
In this work, we compare two different types of FBG sensors under identical conditions and application, namely, acting as the sensor for needle insertion shape reconstruction.
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 diferent sides.
In this paper, we directly compare single-core fiber-based and multicore fiber-based needle shape-sensing through identically constructed, four-active area sensorized bevel-tip needles