WO2023018327A1
A fiber optic needle probe (100) comprising a length of optical fiber (10) inside a hollow needle (20) for supporting the optical fiber along its length. A distal end (10e) of the...
Protrusion
Needle
Type
Fiber
Design and analysis of a fiber-optic sensing system for shape
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.
Optical Force Sensor With Enhanced Resolution for MRI Guided Biopsy
A novel fiber optic force sensor design with enhanced resolution through titanium coating is fabricated using Fabry-Pérot Interferometry (FPI) method and integrated into an 18 gauge MRI
Phantom study of a fiber optic force sensor design for biopsy needles
In this work, an FPI based fiber optic force sensor design and its integration to an 18-gauge MRI compatible biopsy needle are presented.
Optical Fiber-Based Needle Shape Sensing in Real Tissue: Single
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 inserted into
Optical Fiber -Based Needle Shape Sensing: Three-channel Single
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.
Fiber Sensors
What Is a Fiber Sensor? A Fiber Sensor is a type of Photoelectric Sensor that enables detection of objects in narrow locations by transmitting light from a Fiber Amplifier Unit with a Fiber Unit.
(PDF) Fiber-Optic Fabry-Pérot Interferometers for Axial Force Sensing
In this study we investigated several concepts for the design of a force sensor based on a fiber-optic Fabry-Pérot interferometer to measure needle-tissue interaction forces on the tip of a 18
Emerging Technologies for Fiber-Optic-Based Sensors in Biomedical
Fiber-optic sensor (FOS) technology, a proximate of optoelectronics and fiber-optic communications, has profound ability to replace the existent biomedical sensors. Subsequent mass
Fiber Optic Sensor : Types, Working, Interfacing & Its Applications
The fiber optic sensor working principle is that transducer changes some optical fiber system parameters like wavelength, intensity, phase, polarization, etc. This gives an increase in
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Phantom study of a fiber optic force sensor design for biopsy needles
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)
Design and analysis of a fiber-optic sensing system for shape
Another promising method for MIS guidance is shape sensing of the needle based on the fiber optic sensors. Optical fiber characteristics, like biocompatibility, small size, and low mass18 make
Intraoperative Needle Tip Tracking with an Integrated Fibre-Optic
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
Tactile needle probe for minimally invasive tissue identification
This paper presents a tip force sensing needle probe with optical sensors mounted at its tip, which can provide valuable tissue layer breaking information during an insertion event and
Optical fiber technology enables smart needles for epidurals: an
In this work, we propose a fiber optic sensor technology based needle guidance system, that is directly inspired by the most common technique currently used for epidurals; through real-time
Microsensors
For special geometries Bare Fiber Microsensor Identical to our Retractable Needle-Type sensors, but without any sensor housing For custom integration in complex geometries
Fiber Optic Shape Sensors: A comprehensive review
Abstract Fiber Optic Shape Sensing is an innovative Optical Fiber Sensing Technology that uses a fiber optic cable to continuously track the 3D shape and position of a dynamic object (with
Three-Dimensional Ultrasonic Needle Tip Tracking with a Fiber-Optic
Here, a 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
A force sensor based on FPI for flexible needle force sensing
The unique advantage of the fibre optic sensor diameter is thin and easy to integrate, which provides an effective solution to the integration problem of the fine-gauge flexible needle tip
Fiber Optic Shape Sensors: A comprehensive review
A Fiber Optic Shape Sensor (FOSS) can be defined as fiber optic cable with multiple cores and embedded strain sensors. The working principle is the following: in each instrumented section
Fibre-Optic Photoacoustic Beacon and 2D Sparse Sensor Array for 3D
Fibre-Optic Photoacoustic Beacon and 2D Sparse Sensor Array for 3D Tracking of Needles Abstract: Accurate knowledge of the needle tip location during percutaneous procedures such as liver and