Abstract:
An intracranial implant to position a fiber bundle to a specified region of a brain of an animal. The implant may include a base support to be fixed to a skull of the animal over an orifice drilled in the skull, a hollow conduit arranged through the base support to guide the fiber bundle to the brain of the animal through the drilled orifice and a first locking member arranged on the base support, to cooperate with a ferrule of the fiber bundle, the first locking member configured to lock the fiber bundle to the specified region of the brain of the animal.
Abstract:
A method to inspect a solid organ in a subject includes introducing a needle in a predetermined area of the solid organ, inserting an optical probe through a lumen of the needle, and imaging the predetermined area using the optical probe. An optical probe to inspect a solid organ in a subject, the optical probe being intended to be positioned in the solid organ through a needle, the optical probe includes an optical fiber bundle, a ferule to protect the distal tip of the optical fiber bundle, the ferule comprising a shank and a head, and a sheath wrapping the fiber bundle and the shank, wherein the head of the ferule has a length adapted for the optical probe to image the solid organ while keeping the sheath inside the needle.
Abstract:
An intracranial implant to position a fiber bundle to a specified region of a brain of an animal. The implant may include a base support to be fixed to a skull of the animal over an orifice drilled in the skull, a hollow conduit arranged through the base support to guide the fiber bundle to the brain of the animal through the drilled orifice and a first locking member arranged on the base support, to cooperate with a ferrule of the fiber bundle, the first locking member configured to lock the fiber bundle to the specified region of the brain of the animal.
Abstract:
A method to process an image acquired through an optical-fiber guide includes acquiring a first reference image through the optical-fiber guide, acquiring a second calibration image through the optical-fiber guide, spatially identifying each fiber of the optical-fiber guide of the second calibration image in a first detection map, acquiring a recalibration image through the optical-fiber guide, determining a geometrical transformation to make the recalibration image coincide with the first reference image, deriving a new detection map spatially identifying each fiber of the optical-fiber guide of the recalibration image, wherein the new detection map is derived using the geometrical transformation and the first detection map, and individually processing zones of an acquired image corresponding to each fiber of the optical-fiber guide using the new detection map.
Abstract:
A method for processing images acquired in real time through a medical device, said images being loaded into a buffer, comprising the steps of : stopping the loading of the images into the buffer, processing loaded images using an incremental algorithm, displaying successively intermediate results of the processing, resuming the loading and stopping the processing based on an evaluation of said intermediate results.
Abstract:
A method to process an image acquired through an optical-fiber guide includes acquiring a first reference image through the optical-fiber guide, acquiring a second calibration image through the optical-fiber guide, spatially identifying each fiber of the optical-fiber guide of the second calibration image in a first detection map, acquiring a recalibration image through the optical-fiber guide, determining a geometrical transformation to make the recalibration image coincide with the first reference image, deriving a new detection map spatially identifying each fiber of the optical-fiber guide of the recalibration image, wherein the new detection map is derived using the geometrical transformation and the first detection map, and individually processing zones of an acquired image corresponding to each fiber of the optical-fiber guide using the new detection map.
Abstract:
La présente invention concerne un dispositif d'imagerie, comprenant: un module d'illumination (1) comprenant des moyens pour émettre au moins un faisceau d'excitation; un module de balayage et d'injection (2) comprenant un guide d'image (3) dont deux extrémités respectivement proximale (3a) et distale (3b) sont reliées par une pluralité de fibres optiques, et des moyens (6) de balayage et d'injection agencés pour injecter l'au moins un faisceau d'excitation tour à tour dans une fibre du guide d'image (3) et du côté proximal (3a) du guide; un module de détection (4) comprenant des moyens pour détecter un flux lumineux (14) collecté à l'extrémité distale (3b) du guide. Au moins un parmi le module d'illumination (1) et le module de détection (4) est conjugué optiquement au module de balayage et d'injection (2) par une fibre optique de conjugaison (5, 7). L'utilisation de fibres de conjugaison (5, 7) permet d'améliorer la maintenance, la réparation et la mise à jour du dispositif, et peut en outre permettre de réaliser un filtrage modal du faisceau d'excitation et d'assurer la confocalité du dispositif.
Abstract:
The invention relates to a method for the acquisition of in-vivo fluorescence imaging from a fabric using an acquisition system that includes at least one optical fibre exciting the fabric by scanning light beam. According to the invention, the system is used to detect fluorescence signals emitted by the Methylene Blue present in the fabric.
Abstract:
L'invention concerne un procede de traitement d'image acquise au moyen d'un guide constitué par une pluralité de fibres optiques. Selon l'invention, pour chaque fibre optique, on isole sur l'image acquise une zone correspondante à cette fibre optique, on traite localement chaque zone de façon individuelle pour corriger le flux de photon détecté dans chaque fibre optique, puis on reconstruit l'image acquise en éliminant le motif dû aux fibres optiques. Le procédé comprend également un processus d'étalonnage permettant d'obtenir, pour chaque fibre optique et à partir d'une image d'étalonnage, un taux d'injection étalon qui va servir à la reconstruction des images acquises. Le procédé comprend également en premier lieu une étape de détection des fibres à partir d'une image témoin.
Abstract:
In at least one aspect, embodiments disclosed herein relate to a miniaturized scanning system to generate movement of a flexible device positioned at a distal part of a medical tool. The miniaturized scanning system comprises: an inner shaft with a longitudinal axis, adapted to guide said flexible device along said longitudinal axis, an abutment comprising an external surface and adapted to maintain said device, a pusher mechanism adapted to engage with said abutment and comprising at least one end portion adapted to contact said external surface of the abutment at a contact point, wherein said end portion is configured to translate along said longitudinal axis of the inner shaft and wherein the translation of said end portion results in a bending of the device in a bending plane defined by the longitudinal axis of the inner shaft and said contact point.