WO2024121522A1 - Système d'imagerie pour système endoscopique médical supprimant le nid d'abeilles dans les images des fibres optiques multicoeurs - Google Patents
Système d'imagerie pour système endoscopique médical supprimant le nid d'abeilles dans les images des fibres optiques multicoeurs Download PDFInfo
- Publication number
- WO2024121522A1 WO2024121522A1 PCT/FR2023/051962 FR2023051962W WO2024121522A1 WO 2024121522 A1 WO2024121522 A1 WO 2024121522A1 FR 2023051962 W FR2023051962 W FR 2023051962W WO 2024121522 A1 WO2024121522 A1 WO 2024121522A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- core optical
- imaging
- images
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
- A61B1/000094—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope extracting biological structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
- A61B1/000095—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope for image enhancement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00011—Operational features of endoscopes characterised by signal transmission
- A61B1/00013—Operational features of endoscopes characterised by signal transmission using optical means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00117—Optical cables in or with an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
- A61B1/00167—Details of optical fibre bundles, e.g. shape or fibre distribution
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
- A61B1/0669—Endoscope light sources at proximal end of an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/07—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements using light-conductive means, e.g. optical fibres
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
- A61B1/00126—Connectors, fasteners and adapters, e.g. on the endoscope handle optical, e.g. for light supply cables
Definitions
- Imaging system for medical endoscopic system removing honeycomb in images of multi-core optical fibers
- the present invention relates to the technical field of imaging systems implemented in the context of medical endoscopic systems in the general sense allowing access to the interior of a body such as a cavity or a canal for example and it aims more specifically as medical endoscopic systems, medical catheters and medical endoscopes.
- the medical endoscopic system implemented in the context of the present invention finds particularly advantageous applications for allowing access to the internal surface of a hollow organ, a cavity or a natural or artificial conduit of the human body for the purpose of carrying out various operations for therapeutic, surgical or diagnostic purposes, and which can be used in the field of the urinary tract, the gastrointestinal tract, the respiratory system, the cardiovascular system, the trachea, the sinus cavity, the female reproductive system, the abdominal cavity or any other part of the human body to be explored by a natural or artificial means.
- a medical endoscopic system of the medical catheter or medical endoscope type comprises a control handle to which is fixed an insertion tube having, opposite its part fixed to the control handle, a distal head.
- This insertion tube has a greater or lesser length and flexibility so that it can be introduced into a natural or artificial access route in order to perform various operations or functions for therapeutic, surgical or diagnostic purposes.
- an endoscopic system is designed to have the smallest possible section in order to be able to access access routes having a limited passage section.
- the distal head is equipped in particular with a vision system making it possible to examine the organ, the cavity or the conduit of the human body.
- the insertion tube Upstream of this distal head, the insertion tube comprises a flexion structure or crutching part formed of articulated vertebrae allowing the orientation of the distal head.
- This medical endoscope is intended to be connected to a medical electronic device comprising a unit for processing the image signals delivered by the vision system of the endoscope. The images taken are viewed on a screen of this device or on a remote screen connected to this device.
- the vision system mounted at the distal part of the tube comprises a camera associated or not with one or more light sources such as light-emitting diodes.
- the camera, or even the light sources are electrically connected to electrical components located in the handle or in the medical device.
- the camera and the light sources located at the distal part of the insertion tube are connected to the electrical components located in the handle.
- a medical endoscopic system is generally used in an environment in which various electrical equipment such as electrocautery, x-ray x-ray machines, scanners or screens operate, which may affect the operation of the camera and/or the signal delivered by the camera.
- the light sources and the camera are discarded.
- these electronic components are electronic waste requiring recycling, increasing the cost of such a system.
- [0006] II is also known from US patent 11,061,185, a medical endoscopic system comprising a multi-core optical fiber composed of a multitude of cores separated by a matrix and housed in a common sheath.
- This multi-core fiber receives radiation from a target at its distal end and transmits the radiation over its entire length to deliver the radiation to an imaging sensor at its proximal part.
- the medical endoscopic system also includes a lighting source delivering to the proximal end of a lighting optical fiber, a light beam emerging from the distal end of the lighting fiber to illuminate the target.
- Such a medical endoscopic system requires the use of a multi-core optical fiber and an optical lighting fiber in order to obtain a quality image of the target.
- a pattern in the shape of a honeycomb appears on the images taken, corresponding to the separation matrix of the cores of these multi-core optical fibers. This separation structure hinders the observation of the part of the target located in correspondence relation to this separation structure.
- the object of the invention aims to remedy the drawbacks of the state of the art by proposing an imaging system making it possible to obtain a complete image of the target while exhibiting insensitivity to electromagnetic disturbances and a reduction electronic components as waste.
- the imaging system according to the invention for a medical endoscopic system for visualizing a target comprises:
- a medical endoscopic system comprising an insertion instrument ending opposite a proximal part, with a distal head, this insertion instrument being provided with a first multi-core optical fiber and a second first optical fiber multicores each having a distal end, a proximal end and a plurality of cores, separated by a separation structure, the distal ends of the first multicore optical fiber and the second multicore optical fiber being located at the distal head of the instrument insertion;
- an image acquisition and processing device comprising:
- At least one lighting source configured to deliver a light beam according to at least a first wavelength spectrum, to the distal head of the insertion instrument
- At least imaging sensor configured to receive light beams coming from at least the proximal end of the first optical fiber multicores and the proximal end of the second multicore optical fiber, the imaging sensor receiving the images from a configuration system to create on the imaging sensor, images of the target including the position of the honeycomb of the first multi-core optical fiber is different from the position of the honeycomb of the second multi-core optical fiber;
- an imaging processor connected to the imaging sensor and configured to process the images coming from the first multi-core optical fiber and the second multi-core optical fiber, to reconstruct a composite image of the target in which the image of the nest bees do not appear.
- the image acquisition and processing apparatus comprises a single imaging sensor configured to receive either in two separate zones, the light beams coming from the first multi-core optical fiber and from the second multi-core optical fiber, either on a common area but offset in time, the light beams coming from the first multi-core optical fiber and the second multi-core optical fiber.
- the image acquisition and processing apparatus comprises two imaging sensors, each configured to receive a light beam coming either from the first multi-core optical fiber or from the second fiber multi-core optics.
- the configuration system is configured so that the images coming from the first multi-core optical fiber and the images coming from the second multi-core optical fiber can be matched.
- the imaging processor processes the images to determine an orientation of the distal head.
- the configuration system is produced by the first multi-core optical fiber and the second multi-core optical fiber having sections of different shapes.
- the configuration system is produced by the first multi-core optical fiber and the second multi-core optical fiber having different orientations.
- the configuration system is produced by a first multi-core optical fiber and a second multi-core optical fiber having different numerical apertures.
- the configuration system is produced by an optical system arranged at the distal end of the multicore optical fibers to create different depths of field.
- the configuration system is produced by the first multi-core optical fiber having cores of a determined diameter while the second multi-core optical fiber has cores with a diameter different from the diameter of the cores of the first optical fiber.
- the configuration system is produced by the first multi-core optical fiber having a section of determined shape while the second multi-core optical fiber has a section of shape different from the shape of the section of the first multi-core optical fiber.
- the lighting source is configured to deliver a light beam to at least one multi-core optical fiber.
- a lighting source is configured to deliver a light beam to an optical fiber carrying the light to the distal head of the insertion instrument.
- the imaging sensor(s) receive images from the configuration system configured to create, on the imaging sensor(s), images coming from the two multi-core optical fibers and containing indicators size of the target and the imaging processor processes the images to determine a measurement of the target from the size indicators.
- Figure 1 is a general view of an example of application of a remote imaging system for an endoscope as a medical endoscopic system for visualizing a target.
- Figure 2 is a general view of another example of application of a remote imaging system for an endoscope as a medical endoscopic system for visualizing a target.
- Figure 3 is a general view of another example of application of a remote imaging system for a catheter as a medical endoscopic system for visualizing a target.
- Figure 4 shows an example of an over-resolved image in which the honeycomb present in two images obtained using two multi-core optical fibers no longer appears.
- Figure 5 schematically represents another embodiment of a remote imaging system for a medical endoscopic system using two multi-core optical fibers, a light source and an imaging sensor.
- Figure 6 schematically represents another embodiment of a remote imaging system for a medical endoscopic system using two multi-core optical fibers, two light sources and an imaging sensor.
- Figure 7 schematically represents another embodiment of a remote imaging system for a medical endoscopic system using two multi-core optical fibers, a light source and two imaging sensors.
- Figure 8 schematically represents another embodiment of a remote imaging system for a medical endoscopic system using two multi-core optical fibers, two light sources and two imaging sensors.
- Figure 9 schematically represents the distal head of a medical endoscope comprising two multi-core optical fibers and showing a detail of a multi-core optical fiber.
- Figure 10 is a functional block diagram of an exemplary embodiment of a remote imaging system for a medical endoscopic system.
- Figure 11 schematically represents another embodiment of a remote imaging system for a medical endoscopic system using two multi-core optical fibers, a light source and two imaging sensors as well as a fiber additional lighting.
- Figure 12 schematically represents the distal head of a medical endoscope comprising two multi-core optical fibers whose matrix positions are different making it possible to obtain images with offset matrix positions for the target.
- Figure 13 schematically represents the distal head of a medical endoscope comprising several lighting fibers and two multi-core optical fibers whose cores have cores of different diameters.
- Figure 14 schematically represents the distal head of a medical endoscope comprising two multi-core optical fibers with sections of different shapes.
- Figure 15 schematically represents another embodiment of an imaging system comprising an optical system arranged at the distal end of two multi-core optical fibers to create different depths of field.
- an imaging system I for a medical endoscopic system 1 of the endoscope or catheter type in the general sense designed to access the interior of a body such as a cavity or a canal for example.
- an endoscopic system 1 of the endoscope or catheter type comprises an insertion instrument 2 having a proximal part 2a and opposite, a distal part forming a free end.
- the insertion instrument 2 thus ends at its free end, with a distal head 2b from which a target C in the general sense is visualized.
- the medical endoscopic system 1 is an endoscope (FIGS. 1, 2 and 9)
- the medical endoscopic system comprises, as insertion instrument 2, an insertion tube 3 having a free end forming the distal head 2b and held at its opposite end by a control handle 4, all or part of which forms the proximal part 2a of the insertion instrument.
- the insertion tube 3 is fixed temporarily or permanently on the control handle 4.
- the insertion tube 3 is engaged by its end opposite its free end, in a housing a tip 3a intended to be fixed to the distal part of the control handle 4.
- This insertion tube 3 which has a more or less significant length and flexibility is intended to be introduced into a natural access route or artificial to perform various operations or functions for therapeutic, surgical or diagnostic purposes.
- the insertion tube 3 is made of a semi-rigid material such as, for example, thermoplastic elastomer (TPE).
- TPE thermoplastic elastomer
- the insertion tube 3 has a length adapted to the length of the conduit to be inspected and which can be between 5 cm and 3 m.
- the insertion tube 3 has various cross-section shapes such as square, oval or circular. This insertion tube 3 which is in contact with tissues, human organs or medical equipment (trocars or probes), is essentially for single or multiple use by a patient or even for reusable use after decontamination, disinfection or sterilization.
- the endoscopic system 1 of the endoscope type also comprises, inside the insertion tube 3, a tubular conduit 6 forming an operating or working channel extending from the control handle 4 to the head distal 2b to allow at the level of this distal head, the supply of various tools and/or fluids and/or the suction of fluids (Figure 9).
- THE tubular conduit 6 is surrounded by the insertion tube 3 over its entire length between the distal head 2b and the control handle 4. Conventionally, the tubular conduit 6 extends beyond the end piece 3a inside the control handle 4.
- the endoscopic system 1 of the endoscope type also includes a control mechanism 8 making it possible to orient the distal head 2b relative to the longitudinal axis of the insertion tube 3.
- the tube d comprises, upstream of the distal head 2b, a flexion, folding or tilting structure 9 allowing the orientation of the distal head 2b relative to the longitudinal axis of the insertion tube 3.
- the control mechanism 8 can be produced in any appropriate manner so that the distal head 2b can be moved between a rest position in which the insertion tube 3 is straight and a angled position in which the angled part 9 is curved.
- the control mechanism 8 may include a manual control lever rotating a pulley on which is fixed at least one actuation cable mounted to be fixed at the level of the distal head 2b.
- the medical endoscopic system 1 is a catheter (FIG. 3)
- the medical endoscopic system comprises, as insertion instrument 2, a catheter ending opposite to a proximal part 2a, by a distal head 2b.
- Said catheter can be of conventional design without an actuation system allowing the distal part to move along one or more axes. It can also be equipped with a deflection system with a position reminder via a shape memory structure, such as a nithinol blade or wire.
- Another device for actuating the distal part can be made by means of cables or deformable parts by playing on the elasticity of the materials.
- the insertion instrument 2 is provided with at least a first multi-core optical fiber 11 and a second multi-core optical fiber 12.
- Each multi-core optical fiber 11, 12 respectively has a distal end lia, 12a and a proximal end 11b, 12b.
- the end distal lia, 12a of the multi-core optical fibers is located at the distal head 2b of the insertion instrument 2 so as to visualize the target C.
- Each multi-core optical fiber 11, 12 extends at least as far as the proximal part 2a of the insertion instrument and is provided with at least one optical connector 13 at its proximal end 11b, 12b.
- the optical connector 13 equipping the proximal end 11b, 12b of the multi-core optical fibers 11, 12 is intended to cooperate with a complementary male or female optical connector depending on the female or male type of the optical connector 13.
- a focusing lens is mounted in the complementary connector to improve the optical connection, providing a wider positioning tolerance.
- the optical connector 13 may be intended to be thrown away with the insertion instrument. In this case, the optical connector 13 can be produced economically with significant tolerance differences.
- a multi-core optical fiber 11, 12 is an optical fiber comprising a multitude of cores 11c, 12c (FIG. 9), for example at least 10,000 cores separated by a common coating or a separation structure such as 'a matrix lld, 12d.
- cores 11c, 12c coated with the separation structure lld, 12d are mounted inside a common sheath lld, 12e.
- This separation structure lld, 12d of the cores 11c, 12c between them presents, depending on the section of the multicore optical fiber, a honeycomb shape which appears on the images taken, in the form of a dark zone G as this is illustrated in Figure 4.
- optical fibers marketed under the trade name ESKA by the company Mitsubishi Rayon Co., MBI by the company Asahi Kasei or even FIGP by the company Mitsubishi Rayon Co. can be used as multi-core optical fibers 11, 12. Fujikura company.
- the imaging system I also comprises an image acquisition and processing device 15 comprising a single lighting source 16 as in the variants illustrated in Figures 5 and 7 and a first lighting source 16 and a second lighting source 17 as in the variants illustrated in Figures 6 and 8.
- Each lighting source 16, 17 is configured to deliver a light beam according to at least a first wavelength spectrum, to a multi-core optical fiber 11, 12 via the optical connector 13.
- Each lighting source 16, 17 is produced in any appropriate manner to allow the multi-core optical fiber 11 , 12, to deliver at its distal end lia, 12a, a light beam adapted to illuminate the target C to be imaged.
- the lighting sources 16, 17 can be produced by light-emitting diodes, halogen lamps, infrared or ultraviolet light sources.
- the image acquisition and processing device 15 also comprises at least one imaging sensor 18 as in the alternative embodiments illustrated in Figures 5 and 6 and a first imaging sensor 18 and a second imaging sensor 19 as in the alternative embodiments illustrated in Figures 7 and 8.
- Each imaging sensor 18, 19 is configured to receive a light beam coming from the proximal end of a multi-core optical fiber 11, 12, each equipped with the connector optics 13.
- the lighting sources 16, 17 and the imaging sensors 18, 19 form part of the image acquisition and processing apparatus. 15 and are thus offset from the medical endoscopic system 1. It follows that in the case where the medical endoscopic system 1 is of the disposable type, the lighting sources 16, 17 and the imaging sensors 18, 19 can be reused with another medical endoscopic system 1, thereby reducing electronic waste. Furthermore, in the case where the medical endoscopic system 1 requires a decontamination operation, the image acquisition and processing device 15 is not affected by such an operation so that the lighting sources 16, 17 and the imaging sensors 18, 19 which are part of this device are not likely to be damaged by this decontamination operation.
- the proximal end of the multi-core optical fiber(s), provided with the optical connector 13 is located at the proximal part 2a of the insertion instrument, that is to say say at the level of the control handle 4.
- the multi-core optical fibers 11, 12 are mounted inside the insertion tube 3 but outside the tubular conduit 6.
- the multi-core optical fibers 11, 12 thus extend from the distal head of the insertion tube, inserting over the entire length of the insertion tube 3, between the latter and the tubular conduit 6.
- the multi-core optical fibers 11, 12 extend inside the the control handle 4 to one or more optical connectors 13 mounted at the proximal part of the control handle 4.
- an optical cable 21 provides an optical connection between the optical connector(s) 13 and the image acquisition and processing device 15 to ensure the routing of the light beams between, on the one hand, the multi-core optical fibers 11, 12 and on the other hand, the lighting source(s) 16, 17 and the imaging sensor(s) 18, 19.
- the optical cable 21 can be produced in any suitable manner in the form of one or more optical fibers.
- the optical cable 21 is provided, opposite its part connected to the optical connector 13, with an optical connector 13a fixed to the image acquisition and processing device 15.
- the proximal end of the multicore optical fibers, provided with the optical connector 13 is connected directly to the image acquisition and processing device 15.
- the proximal end of the multicore optical fibers, provided with the optical connector 13 is fixed directly to the image acquisition and processing device 15.
- the multi-core optical fibers 11, 12 extend from the distal head of the insertion tube, inserting over the entire length of the insertion tube 3, between the latter and the tubular conduit 6.
- the multi-core optical fibers 11, 12 extend inside the control handle 4 to exit the proximal part of the control handle so as to be connected to the optical connector 13 fixed to the acquisition and processing apparatus of images 15.
- this catheter is formed at least by multi-core optical fibers 11, 12 of which l
- the distal end 11a, 12a forms the distal head 2b of the insertion instrument 2.
- the insertion instrument 2 is formed by a protective sleeve in which the two multi-core optical fibers 11, 12 are mounted.
- the proximal end of the multi-core optical fibers 11, 12 is connected via the optical connector 13, directly to the image acquisition and processing device 15 (as illustrated in Figure 3) or indirectly using the optical cable 21 (as explained in relation to Figure 1).
- the endoscopic system 1 comprises a first multi-core optical fiber 11 and a second multi-core optical fiber 12.
- the image acquisition and processing device 15 comprises:
- a lighting source 16 configured to deliver a light beam to the first multi-core optical fiber 11,
- the single imaging sensor 16 configured to present a first reception zone of a light beam coming from the proximal end of the first multi-core optical fiber 11 and a second reception zone separated from the first reception zone, for receive a light beam coming from the proximal end of the second multi-core optical fiber 12. It should be noted that the single imaging sensor 16 is configured to receive either on two separate zones, the light beams coming from the first fiber multi-core optical fiber 11 and the second multi-core optical fiber 12, i.e. on a common zone but offset in time, the light beams coming from the first multi-core optical fiber 11 and the second multi-core optical fiber 12.
- the image acquisition and processing apparatus 15 comprises an optical separation system 22 arranged on the optical path between the proximal end of the multi-core optical fiber 11 and the imaging sensor 18 and reflecting in direction of the proximal end of the multicore optical fiber 11, the light beam coming from the lighting source 16.
- This optical separation system 22 can be produced by any appropriate means such as by a semi-reflecting blade, a light separator beam or prism optical system.
- This example has the advantage of being able to obtain two images simultaneously which can be processed at the same time to achieve superresolution as will be described in the remainder of the description.
- the endoscopic system 1 comprises a first multi-core optical fiber 11 and a second multi-core optical fiber 12.
- the image acquisition and processing device 15 comprises:
- first lighting source 16 configured to deliver a light beam to the first multi-core optical fiber 11,
- a second lighting source 17 configured to deliver a light beam to the second multi-core optical fiber 12,
- a single imaging sensor 18 configured to present a first reception zone of a light beam coming from the proximal end of the first multi-core optical fiber 11 and a second reception zone separated from the first reception zone, for receive a light beam coming from the proximal end of the second multi-core optical fiber 12.
- the image acquisition and processing apparatus 15 comprises an optical separation system 22 arranged on the optical path between the proximal end of each multicore optical fiber 11,12 and the imaging sensor 18 and reflecting towards the proximal end of each multicore optical fiber 11, 12, the light beam coming from the lighting sources 16.
- This exemplary embodiment makes it possible to illuminate the target with light beams having spectra of different wavelengths in order to obtain a spectral over-resolution image.
- This solution offers the advantage of being able to visualize tumors. Indeed, by choosing a specific spectrum of wavelengths, the vascularization of the tissues can be highlighted. However, like a tumor corresponds to a highly vascularized area, a tumor can be more easily observed by implementing this technique.
- the endoscopic system 1 comprises a first multi-core optical fiber 11 and a second multi-core optical fiber 12.
- the image acquisition and processing device 15 comprises:
- a lighting source 16 configured to deliver a light beam to the first multi-core optical fiber 11,
- a first imaging sensor 18 configured to receive a light beam coming from the proximal end of the first multi-core optical fiber H
- a second imaging sensor 19 configured to receive a light beam coming from the proximal end of the second multi-core optical fiber 12.
- the image acquisition and processing apparatus 15 comprises an optical separation system 22 arranged on the optical path between the proximal end of the multicore optical fiber 11 and the imaging sensor 18 and reflecting in the direction from the proximal end of the multicore optical fiber 11, the light beam coming from the lighting source 16.
- the endoscopic system 1 comprises a first multi-core optical fiber 11 and a second multi-core optical fiber 12.
- the image acquisition and processing device 15 comprises:
- first lighting source 16 configured to deliver a light beam to the first multi-core optical fiber 11,
- a second lighting source 17 configured to deliver a light beam to the second multi-core optical fiber 12
- a first imaging sensor 18 configured to receive a light beam coming from the proximal end of the first multi-core optical fiber H
- a second imaging sensor 19 configured to receive a light beam coming from the proximal end of the second multi-core optical fiber 12.
- the image acquisition and processing apparatus 15 comprises an optical separation system 22 arranged on the optical path between the proximal end of each multi-core optical fiber 11, 12 and the imaging sensor 18, 19 and reflecting towards the proximal end of each multi-core optical fiber 11, 12, the light beam coming from the lighting sources 16, 17.
- the proximal end of the multicore optical fibers, provided with the optical connector 13, is shown schematically as being connected directly to the image acquisition and processing device 15.
- the proximal end of the multicore optical fibers 11, 12, provided with the optical connector 13 can be located at the proximal part 2a of the insertion instrument so that an optical cable 21 ensures the optical connection between the connector optical 13 fixed to the control handle 4 and the image acquisition and processing device 15.
- the image acquisition and processing device 15 is configured so as to ensure the routing of light between the imaging sensors 18, 19 and the connectors optics 13, 13a fixed to the image acquisition and processing device 15.
- the image acquisition and processing device 15 is configured so as to ensure, by all appropriate means, the routing of light between the lighting sources 16, 17 and the optical connectors 13, 13a fixed to the image acquisition and processing device 15.
- the multi-core optical fibers 11, 12 ensure in particular the routing of the luminous flux from the lighting sources to the distal head 2b of the insertion instrument.
- the medical endoscopic system 1 comprises at least one optical lighting fiber 28 and in the example illustrated in Figure 13, three optical fibers d lighting 28, allowing the provision of an additional luminous flux.
- This optical lighting fiber 28 has a distal end 28a and a proximal end 28b recovering the light flux from a light source 29.
- the distal end 28a of the optical lighting fiber 28 is located at the distal head 2b of the insertion instrument while the proximal end of the optical lighting fiber is located at the proximal part 2a of the insertion instrument being provided with an optical connector through which a light beam of lighting provided by the light source 29.
- the image acquisition and processing device 15 also comprises, as illustrated in Figure 10, an imaging processor 25 connected to the imaging sensors 18, 19 and configured to form images of the target C , from the signals delivered by the imaging sensors 18, 19.
- the imaging processor 25 controls the imaging sensors 18, 19 in order to acquire images of the target at specific times.
- the imaging processor 25 also controls the lighting sources 16, 17 to control the lighting emitted in particular during the acquisition of images by the imaging sensors 18, 19 as described in the remainder of the description.
- the imaging processor 25 is connected to a display screen 26 making it possible to display the images of the target C. This display screen 26 can be part of the image acquisition and processing device 15 or be deported in relation to this device.
- the imaging processor 25 can be connected to a memory for recording images.
- the image acquisition and processing device 15 can be presented in different ways.
- the image acquisition and processing device 15 can be in the form of an electronic tablet provided of the display screen 26 and a man/machine interface allowing a user to enter data or control this device.
- This man/machine interface can be a keyboard, a mouse, or the screen, for example produced by a touch screen.
- the image acquisition and processing apparatus 15 also includes a communications unit configured to communicate with a generally remote database, forming part of a computer system.
- the imaging system I according to the invention can be implemented in different ways which follow directly from the preceding description.
- the lighting source(s) 16, 17 are configured to deliver light beams according to spectra of different wavelengths and the imaging sensor(s) 18, 19 are adapted to acquire images of spectra of different wavelengths. Typically, it can be considered to acquire images with different acquisition times before reconstructing them.
- the imaging processor 25 processes the images of spectra of different wavelengths to obtain a spectral super-resolution image. In other words, the resulting image has a greater resolution than the resolution of the images taken.
- the lighting source(s) 16 is the lighting source(s) 16,
- the first lighting source 16 is controlled to deliver a light beam according to a wavelength spectrum of red and the first sensor of imagery
- the imaging processor 25 processes the wavelength spectrum images to obtain a contrasted or colored image In which may be a white image.
- the imaging processor 25 processes the images of wavelength spectra of red Ir, green Iv and blue Ib to obtain a white image In.
- each image of lengths of red Ir, green Iv and blue Ib has for example a resolution of 40,000 pixels. Taking these images into account makes it possible to obtain a white image with a resolution of 120,000 pixels.
- the lighting source(s) 16, 17 are configured to successively deliver light beams according to spectra of different wavelengths such as infrared light radiation and ultraviolet light radiation.
- the imaging processor 25 controls the imaging sensor(s) 18, 19 to acquire images shifted in time.
- the imaging processor 25 processes the time-shifted images to obtain a temporal super-resolution image.
- the imaging processor 25 processes a series of images taken successively over time so as to obtain a resulting image with an improved resolution compared to the resolution of each image taken.
- the imaging processor 25 controls the imaging sensor(s) 18, 19 to acquire images offset in space while presenting an overlapping zone. These images are shifted in space following the movement of the insertion instrument 2 or taking into account the shift of the two multicore optical fibers at the level of the distal head 2b.
- the imaging processor 25 processes the images shifted in space but also in time to obtain a spatial over-resolution image.
- the imaging processor 25 processes a series of images taken successively for different positions of the distal head so as to obtain a resulting image with improved resolution compared to the resolution of each image taken.
- the spatial, temporal and spectral super-resolution images are produced using image processing algorithms based on multi-image super-resolution methods.
- At least one imaging sensor 18, 19 is configured to receive light beams coming from the proximal end of the first multi-core optical fiber 11 and from the end proximal of the second multi-core optical fiber 12.
- the imaging sensor 18, 19 receives the images from a configuration system 31 to create on the imaging sensor 18, 19, images of the target C whose position relative to the target, of the separation structure or matrix lld of the first multi-core optical fiber 11 is different from the position relative to the target, of the separation structure or matrix 12d of the second multi-core optical fiber 12.
- the imaging processor 25 is configured to process the images coming from the first multi-core optical fiber 11 and the second multi-core optical fiber 12, to reconstruct a composite image of the target in which the image of the matrices or structures separation lld, 12d does not appear. Indeed, taking into account the presence of a separation structure lld, 12d of the cores 11c, 12c for each multi-core optical fiber 11, 12, the images Ill and 112 ( Figure 4) taken from the light radiation conveyed respectively by the first multi-core optical fiber 11 and the second multi-core optical fiber 12, reveal dark areas G in the form of a grid or honeycomb corresponding to the images of the structure separation lld, 12d of multicore optical fibers. These dark areas G correspond to areas of the target C which are not observed by the imaging sensors.
- the principle of the invention aims for the luminous fluxes conveyed by the first multi-core optical fiber 11 and the second multi-core optical fiber 12 to cover an entire area of the target C.
- the entire area of the target C is observed.
- the area of the target C observed corresponds to the common area of the target observed by both the two multi-core optical fibers 11, 12.
- the fields of observation of the two multi-core optical fibers may not coincide. In this case, only the common part of the fields of observation of the two multicore optical fibers allow the reconstruction of a composite image devoid of the image of the separation structures lld, 12d.
- the imaging processor 25 is configured to construct a composite image from the images Ill coming from the first multi-core optical fiber 11 and the images 112 coming from the second multi-core optical fiber 12.
- the missing parts of an image coming from the first multi-core optical fiber 11 and corresponding to the dark zone G are reconstituted from the parts of an image coming from the second multi-core optical fiber 11 and not corresponding to a dark zone of said image.
- the missing part of an image coming from the first multi-core optical fiber is supplemented by the corresponding part of an image coming from the second multi-core optical fiber.
- the missing part of an image coming from the second multi-core optical fiber is completed by the corresponding part of an image coming from the first multi-core optical fiber.
- the image of the matrices that is to say the image of the separation structure lld, 12d of the cores of the two multi-core optical fibers 11, 12 as illustrated in the Figure 4.
- Such an over-resolved image makes it possible to obtain an image of the entire target with improved resolution.
- the composite image thus reconstructed may include one or more undefined zones corresponding to dark zones.
- the imaging processor 25 implements image processing programs allowing, from the images Ill and 112 taken from the multi-core optical fibers 11, 12, to construct a composite image.
- image processing programs can use neural networks for which a learning phase has been carried out with reference images of targets.
- the configuration system 31 for creating images of the target C whose position on the imaging sensor, of the matrix lld of the first multi-core optical fiber 11 is different from the position on the sensor imaging, of the matrix 12d of the second multi-core optical fiber 12 can be carried out in any appropriate manner.
- At least one alternative embodiment of the configuration system 31 described below is adapted to create on the imaging sensor(s), images coming from the two multi-core optical fibers and containing target size indicators.
- the images thus created are processed by the imaging processor 25 to determine a measurement of the target from the size indicators present on the images.
- the target size indicators are linked to the physical characteristics of the multi-core optical fibers 11, 12 such as for example, the diameter of the cores 11c, 12c, the diameter of these multi-core optical fibers, the thickness of the matrices lld, 12d or the shapes of the sections of the multicore optical fibers 11, 12.
- the configuration system 31 is produced by the first multi-core optical fiber 11 and the second fiber multi-core optics 12 having different orientations (Figure 12).
- the first multi-core optical fiber 11 and the second multi-core optical fiber 12 are of the same type of fiber and the distal ends lia, 12a of these multi-core optical fibers 11, 12 are positioned at the level of the distal head 2b of way that these multi-core optical fibers 11, 12 observe the target with separation structures lld, 12d spatially offset between them.
- two multi-core optical fibers 11, 12 can be used to carry out measurements of the dimensions of the target from the images of the target taken by these two multi-core optical fibers.
- the separation structures lld, 12d can serve as size indicators to determine a size measurement of the target.
- the configuration system 31 is produced by the first multi-core optical fiber 11 having cores 11c according to a determined diameter while the second multi-core optical fiber 12 has cores 12c with a diameter different from the diameter of the cores of the first optical fiber.
- the cores 11c of the first multi-core optical fiber 11 have, for example, a smaller diameter than the cores 12c of the second multi-core optical fiber 12.
- the two multi-core optical fibers 11, 12 have the same section, that is to say the same diameter.
- the configuration system 31 can be produced by the first multi-core optical fiber 11 and the second multi-core optical fiber 12 which have different sections.
- the diameter of the first multi-core optical fiber 11 may be less than the diameter of the second multi-core optical fiber 12.
- the implementation of two multi-core optical fibers 11, 12 of different but known dimensions can be used as size indicators to carry out measurements of the dimensions of the target from the images of the target taken by these two multi-core optical fibers.
- the configuration system 31 is produced by the first multi-core optical fiber 11 having a section of determined shape while the second multi-core optical fiber 12 has a section of shape different from the shape of the section of the first optical fiber.
- the first multi-core optical fiber 11 has a square section while the second multi-core optical fiber 12 has a round section.
- the implementation of two multi-core optical fibers 11, 12 with sections of different shapes can be used as size indicators to carry out measurements of the dimensions of the target from the images of the target taken by these two multi-core optical fibers.
- the dimensions of the sections of these two multi-core optical fibers being known, it is thus possible to carry out measurements of the target on the images taken of these two multi-core optical fibers.
- the configuration system 31 is produced by an optical system 31a, 31b arranged at the distal end of the multicore optical fibers 11, 12 to create different depths of field.
- the optical system may comprise for example a first lens 31a disposed at the distal end 11a of the first multi-core optical fiber 11 to observe the target C at a depth of field Pfl.
- a second lens 31b is arranged at the distal end 12a of the second multi-core optical fiber 12 to observe the target C at a depth of field Pf2 which is different from the depth of field Pfl.
- the configuration system 31 is produced by the use of a first multi-core optical fiber 11 and a second multi-core optical fiber 12 having different numerical apertures.
- the aperture of a multi-core optical fiber 11, 12 defines its field of observation, the images obtained by multi-core optical fibers of different apertures are different.
- the configuration system 31 can be produced by one and/or the other of the alternative embodiments described above. In other words, it must be understood that these various alternative embodiments of the configuration system 31 can be combined with each other in any appropriate manner.
- the multicore optical fibers 11, 12 can have cores of different diameters but also sections of different shapes.
- the configuration system 31 is configured so that the images Ill coming from the first multi-core optical fiber 11 and the images 112 coming from the second multi-core optical fiber 12 can be matched. Indeed, to reconstruct the missing parts of an image with the corresponding parts of another image, the positions of the images should be referenced to each other. The determination of the relative position of the images with each other can be carried out in any appropriate manner. For example, the implementation of a marker or a mark appearing on the images taken allows this matching to the extent that the relative positioning of the distal ends lia, 12a of the multicore optical fibers 11, 12 at the level of the distal head 2b of the insertion instrument is known.
- the implementation of two multi-core optical fibers 11, 12 with sections of different shapes can be used to match the images taken by the multi-core optical fibers 11, 12.
- the relative positioning of the multi-core optical fibers 11, 12 at the distal head 2b of the insertion instrument being known, it is possible to determine the relative position of the images from their characteristic shape.
- the imaging processor 25 processes the images coming from the two multi-core optical fibers 11, 12 to determine an orientation of the distal head 2b.
- the images coming from the two multicore optical fibers 11, 12 with sections of different shapes present orientation indicators making it possible to determine the orientation of the distal head 2b since the relative orientation of the two multicore optical fibers 11, 12 is known at the distal head 2b.
- an imaging system I comprising two multicore optical fibers 11, 12 with sections of different shapes can be advantageously used to help localize the distal head relative to the target.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Signal Processing (AREA)
- Endoscopes (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23836897.1A EP4629871A1 (fr) | 2022-12-08 | 2023-12-08 | Système d'imagerie pour système endoscopique médical supprimant le nid d'abeilles dans les images des fibres optiques multicoeurs |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2212974 | 2022-12-08 | ||
| FR2212974A FR3142878A1 (fr) | 2022-12-08 | 2022-12-08 | Système d’imagerie pour système endoscopique médical supprimant le nid d’abeilles dans les images des fibres optiques multicoeurs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024121522A1 true WO2024121522A1 (fr) | 2024-06-13 |
Family
ID=85381283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2023/051962 Ceased WO2024121522A1 (fr) | 2022-12-08 | 2023-12-08 | Système d'imagerie pour système endoscopique médical supprimant le nid d'abeilles dans les images des fibres optiques multicoeurs |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4629871A1 (fr) |
| FR (1) | FR3142878A1 (fr) |
| WO (1) | WO2024121522A1 (fr) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090237498A1 (en) * | 2008-03-20 | 2009-09-24 | Modell Mark D | System and methods for the improvement of images generated by fiberoptic imaging bundles |
| US20140046177A1 (en) * | 2010-11-18 | 2014-02-13 | Shimadzu Corporation | X-ray radiographic apparatus |
| US20140378845A1 (en) * | 2013-06-19 | 2014-12-25 | The General Hospital Corporation | Apparatus, devices and methods for obtaining omnidirectional viewing by a catheter |
| US20150305603A1 (en) * | 2014-04-23 | 2015-10-29 | Calcula Technologies, Inc. | Integrated medical imaging system |
| US20190209015A1 (en) * | 2017-12-18 | 2019-07-11 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Multi-field miniaturized micro-endoscope |
| US20210038062A1 (en) * | 2019-08-05 | 2021-02-11 | Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America | Optical fiber assembly |
| US20210048660A1 (en) * | 2018-01-29 | 2021-02-18 | Royal Melbourne Institute Of Technology | Multicore fiber imaging |
| US11061185B2 (en) | 2017-07-17 | 2021-07-13 | Z Square Ltd. | Enhancing imaging by multicore fiber endoscopes |
| US20220160218A1 (en) | 2019-03-29 | 2022-05-26 | Coopersurgical, Inc. | Endoscopic devices and related methods |
-
2022
- 2022-12-08 FR FR2212974A patent/FR3142878A1/fr active Pending
-
2023
- 2023-12-08 WO PCT/FR2023/051962 patent/WO2024121522A1/fr not_active Ceased
- 2023-12-08 EP EP23836897.1A patent/EP4629871A1/fr active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090237498A1 (en) * | 2008-03-20 | 2009-09-24 | Modell Mark D | System and methods for the improvement of images generated by fiberoptic imaging bundles |
| US20140046177A1 (en) * | 2010-11-18 | 2014-02-13 | Shimadzu Corporation | X-ray radiographic apparatus |
| US20140378845A1 (en) * | 2013-06-19 | 2014-12-25 | The General Hospital Corporation | Apparatus, devices and methods for obtaining omnidirectional viewing by a catheter |
| US20150305603A1 (en) * | 2014-04-23 | 2015-10-29 | Calcula Technologies, Inc. | Integrated medical imaging system |
| US11061185B2 (en) | 2017-07-17 | 2021-07-13 | Z Square Ltd. | Enhancing imaging by multicore fiber endoscopes |
| US20190209015A1 (en) * | 2017-12-18 | 2019-07-11 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Multi-field miniaturized micro-endoscope |
| US20210048660A1 (en) * | 2018-01-29 | 2021-02-18 | Royal Melbourne Institute Of Technology | Multicore fiber imaging |
| US20220160218A1 (en) | 2019-03-29 | 2022-05-26 | Coopersurgical, Inc. | Endoscopic devices and related methods |
| US20210038062A1 (en) * | 2019-08-05 | 2021-02-11 | Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America | Optical fiber assembly |
Non-Patent Citations (7)
| Title |
|---|
| ANDREW D THRAPP ET AL: "Reduced motion artifacts and speed improvements in enhanced line-scanning fiber bundle endomicroscopy", ARXIV.ORG, CORNELL UNIVERSITY LIBRARY, 201 OLIN LIBRARY CORNELL UNIVERSITY ITHACA, NY 14853, 30 November 2020 (2020-11-30), XP081832364 * |
| C. MANCAS-THILLOUM. MIRMEHDI: "Digital Document Processing, ser. Advances in Pattern Recognition", 2007, SPRINGER, article "An Introduction to Super-Resolution Text", pages: 305 - 327 |
| CHEON-YANG LEE AND JAE-HO HAN: "Elimination of honeycomb patterns in fiber bundle imaging by a superimposition method", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, US, vol. 38, no. 12, 15 June 2013 (2013-06-15), pages 2023 - 2025, XP001583064, ISSN: 0146-9592, DOI: HTTP://DX.DOI.ORG/10.1364/OL.38.002023 * |
| OH GYUNGSEOK ET AL: "Optical fibers for high-resolution in vivo microendoscopic fluorescence imaging", OPTICAL FIBER TECHNOLOGY, vol. 19, no. 6, 31 December 2013 (2013-12-31), pages 760 - 771, XP028788772, ISSN: 1068-5200, DOI: 10.1016/J.YOFTE.2013.07.008 * |
| S. BORMANR. STEVENSON: "Super-Resolution from Image Sequences : A Review", MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, NOTRE DAME, IN, USA, vol. 8, 1998, pages 374 - 378 |
| S. C. PARKM. K. PARKM. G. KAN: "Super-Resolution Image Reconstruction: A Technical Overview", IEEE SIGNAL PROCESSING MAGAZINE, vol. 20, no. 3, pages 21 - 36 |
| TIANK.-K. MA: "A survey on super-resolution imaging", SIGNAL, IMAGE AND VIDEO PROCESSING, vol. 5, no. 3, 2011, pages 329 - 342 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4629871A1 (fr) | 2025-10-15 |
| FR3142878A1 (fr) | 2024-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101437437B (zh) | 用于对物体内部三维成像的成像系统 | |
| JP6670943B2 (ja) | 前方ビューのスペクトル符号化内視鏡検査のための簡単なモノリシック光学素子 | |
| EP1582140B1 (fr) | Dispositif de métrologie par pointage laser pour sonde vidéoendoscopique | |
| JP5951916B1 (ja) | パノラマ臓器イメージング | |
| JP2005278762A (ja) | 穿刺型内視鏡用プローブ | |
| FR2920085A1 (fr) | Systeme d'imagerie pour l'observation tridimensionnelle d'un champ operatoire | |
| CA2472197A1 (fr) | Appareil et procede d'examen spectroscopique du colon | |
| US20200367735A1 (en) | Imaging system and method using multicore fiber | |
| CN109561810A (zh) | 内窥镜设备和用于内窥镜检查的方法 | |
| US20210244346A1 (en) | Cell-collecting falloposcope and method for ovarian cancer detection | |
| CN110381804A (zh) | 内窥镜设备 | |
| US20180247397A1 (en) | High resolution microendoscope employing differential structured illumination and method of using same | |
| JP2022519212A (ja) | 内視鏡システム | |
| WO2008020130A2 (fr) | Utilisation d'un système d'imagerie par fluorescence confocale fibré in vivo in situ, système et procédé d'imagerie par fluorescence confocale fibrés in vivo in situ | |
| EP3084505B1 (fr) | Dispositif d'imagerie structurée tridimensionnelle à guides d'images réversibles | |
| WO2024121522A1 (fr) | Système d'imagerie pour système endoscopique médical supprimant le nid d'abeilles dans les images des fibres optiques multicoeurs | |
| FR3142877A1 (fr) | Système d’imagerie déporté pour système endoscopique médical de visualisation d’une cible | |
| DE102021133248A1 (de) | Endoskopie-Vorrichtung und Endoskopie-System | |
| US11717154B2 (en) | Imaging apparatus and method | |
| WO2025125258A1 (fr) | Procede d'analyse d'une video multispectrale prealablement acquise par endoscopie sur une zone de tissu biologique, et systeme d'imagerie endoscopique correspondant | |
| WO2024133601A1 (fr) | Procédé d'imagerie en temps réel | |
| KR101944760B1 (ko) | 프로브 유닛, 이것을 포함하는 광학 영상 장치, 및 광학 영상 장치의 제어 방법 | |
| FR3143739A1 (fr) | Système d’observation à deux ports d’entrée équipé d’un système polarimétrique | |
| FR3143740A1 (fr) | Imagerie multispectrale polarimétrique | |
| FR3143316A1 (fr) | Procédé d’imagerie en temps réel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23836897 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2023836897 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2023836897 Country of ref document: EP Effective date: 20250708 |
|
| WWP | Wipo information: published in national office |
Ref document number: 2023836897 Country of ref document: EP |