EP4377734A1 - Système de visualisation sans contact pour un microscope chirurgical pour chirurgie oculaire - Google Patents

Système de visualisation sans contact pour un microscope chirurgical pour chirurgie oculaire

Info

Publication number
EP4377734A1
EP4377734A1 EP22744450.2A EP22744450A EP4377734A1 EP 4377734 A1 EP4377734 A1 EP 4377734A1 EP 22744450 A EP22744450 A EP 22744450A EP 4377734 A1 EP4377734 A1 EP 4377734A1
Authority
EP
European Patent Office
Prior art keywords
lens
contactless
visualization system
wall
eye
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.)
Pending
Application number
EP22744450.2A
Other languages
German (de)
English (en)
Inventor
Jonathan Essig
Andrè Müller
Christian Beder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss Meditec AG
Original Assignee
Carl Zeiss Meditec AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carl Zeiss Meditec AG filed Critical Carl Zeiss Meditec AG
Publication of EP4377734A1 publication Critical patent/EP4377734A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/24—Base structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • A61B3/125—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes with contact lenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/13—Ophthalmic microscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/20—Surgical microscopes characterised by non-optical aspects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/0004—Microscopes specially adapted for specific applications
    • G02B21/0012—Surgical microscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/02—Objectives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/002—Magnifying glasses
    • G02B25/008—Magnifying glasses comprising two or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B90/361—Image-producing devices, e.g. surgical cameras
    • A61B2090/3616—Magnifying glass

Definitions

  • the present invention relates to a contactless visualization system for a surgical microscope for Auqenchirurqie
  • So-called contactless visualization systems are often used for ophthalmic surgery of the rear section of the eye
  • ophthalmoscopy magnifiers which are placed close to the patient's eye and deliver a real (albeit laterally and vertically inverted) image of the fundus of the eye in an intermediate image plane, which in turn can then be viewed with a surgical microscope.
  • Known reprocessable ophthalmoscopy loupes usually have a separate, peripheral rim that represents a mount that connects the single lens of the ophthalmoscopy loupes to its holder.
  • the liquid can run off between the holder and the single lens.
  • injection-moulded individual magnifiers made of plastic there is no need for an all-round holder. This means that the liquid can drain off even more easily here.
  • the at least one passage opening is formed in the wall in order to be able to remove any liquid present in the space between the two lenses.
  • This can involve exactly one through-opening for liquid removal or a plurality of through-openings for liquid removal.
  • the wall can be designed in such a way that no further opening or recess is provided. Alternatively, however, it is entirely possible for one or more further openings and/or recesses to be formed in the wall.
  • the wall also serves as a mount for the second lens, it must have certain minimum mechanical sizes and thicknesses for reasons of stability. It is preferred if the wall is continuous in the circumferential direction. This means that the through-opening is preferably arranged in such a way that the wall is not interrupted in the circumferential direction.
  • the wall is therefore preferably designed such that at each position in the circumferential direction the wall has at least one section which extends in the direction from the first to the second lens.
  • the wall can be designed in such a way that the wall is self-contained in the circumferential direction or that at least one imaginary, self-contained curve runs on the wall in the circumferential direction. In this way, a stable visualization system can be provided.
  • the at least one passage opening can have a width of 20° to 70°, in particular 30° to 60° or 30° to 50° and particularly preferably 35° to 45° in the circumferential direction.
  • the latitude can be e.g. 40°.
  • the wall can be formed together with the first lens as a one-piece part. It is particularly preferred that it is an injection molded part. This creates the possibility of using the ophthalmoscopy magnifier as a single-use product or
  • the one-piece formation of the wall with the first lens is preferably implemented as a material connection. However, implementation by means of a form fit is also possible.
  • the second lens can be arranged concentrically to the first lens.
  • the at least one through opening is preferably formed closer to the first lens than to the second lens.
  • the at least one through-opening can be designed in such a way that its lower edge abuts directly on the boundary surface of the first lens, which faces the second lens.
  • This abutting of the lower edge against the boundary surface of the first lens is preferably designed in such a way that no depression is provided as a result.
  • the lower edge can run perpendicular to the optical axis of the first lens.
  • a plurality of through-openings can be formed in the wall and spaced apart from one another in the circumferential direction.
  • the at least one through-opening can comprise a plurality of through-openings. There can be two, three, four, five or more through-openings.
  • three through holes may be provided, each spaced 120 degrees apart in the circumferential direction. This spacing preferably relates to the center of the respective through-opening in the circumferential direction.
  • the first lens and/or the wall can be made of plastic.
  • the second lens can also be made of plastic.
  • the second lens may include a holder port that may be integrally formed with the second lens.
  • the holder connection can be produced together with the second lens by a two-component injection molding process.
  • the integral design of the second lens with the holder connection is preferably implemented as a positive fit. However, it is also possible to implement it by means of a material connection.
  • the mount can be designed as a snap lock, clamp connection or elastic clamp mount.
  • the mount can have a plurality of elastic clamping fingers (for example three which are spaced apart from one another in the circumferential direction, for example by 120° in relation to the center of the respective clamping finger in the circumferential direction) which, for example, each comprise a clamping groove.
  • the second lens can have corresponding mount areas that protrude into the clamping grooves.
  • the frame can have corresponding frame ranges have, which have abutment surfaces for the second lens or for the mounting areas of the second lens.
  • any other type of mounting is also possible using the socket, such as a screw cap, a bayonet cap, etc.
  • the frame may further include at least one recess in which an edge of the second lens is exposed to provide a surgeon's workspace.
  • the cutout can extend in the wall from the free end in the direction of the first lens, with the cutout preferably not extending to the upper side of the first lens, but rather ending in front of it. A certain height of the wall is thus provided even in the area of the recess, which is advantageous for reasons of stability.
  • the recess can taper towards the first lens.
  • the width of the recess at the free end in the circumferential direction can be 20° to 70°, in particular 30° to 60° or 30° to 50° and particularly preferably 35° to 45°.
  • the latitude can be 40°.
  • the at least one recess and the at least one through-opening are offset from one another in the circumferential direction.
  • the at least one recess and the at least one through-opening can be arranged in such a way that they are each spaced apart from one another in the circumferential direction.
  • the distance can be 60°, for example (relative to the center of the respective recess in the circumferential direction and to the center of the respective through-opening in the circumferential direction).
  • the contactless visualization system can also have an ophthalmoscopy loupe carrier to which the ophthalmoscopy loupe is mechanically connected.
  • the ophthalmoscopy magnifier can be positioned in the imaging beam path of the surgical microscope and moved out of the imaging beam path by means of the ophthalmoscopy magnifier carrier.
  • the ophthalmoscopic magnifier carrier can also be mechanically connected to the surgical microscope.
  • the ophthalmoscopy magnifier carrier can be designed in such a way that a rotational movement of the ophthalmoscopy magnifier about the optical axis of the surgical microscope is possible. A user can thus bring the ophthalmoscopy loupe into a desired rotational position, which is advantageous for him, for example, when using the ophthalmoscopy loupe.
  • the mechanical connection of the ophthalmoscopy loupe to the ophthalmoscopy loupe carrier can be a detachable connection, so that the ophthalmoscopy loupe can be exchanged. This is particularly advantageous if the ophthalmoscopy magnifier is designed as a disposable item.
  • the surgical microscope according to the invention for eye surgery can be designed in particular as a 3D surgical microscope.
  • FIG. 1 shows a schematic view of an embodiment of the contactless visualization system 1 in connection with a surgical microscope 2;
  • FIG. 2 shows a perspective view of the ophthalmoscopy magnifier 3 from FIG. 1 ;
  • FIG. 3 shows a perspective sectional illustration of the ophthalmoscopy magnifier 3 from FIG. 2;
  • FIG. 4 shows a view from below of the first lens 27i of the ophthalmoscopy magnifier 3 from FIG. 1 ;
  • Fig. 5 is a perspective view of the first line 27i with the wall 30 of
  • FIG. 6 shows a perspective representation of a further exemplary embodiment of the ophthalmoscopy magnifier 3 from FIG. 1 .
  • FIG. 7 shows a perspective representation of a further exemplary embodiment of the ophthalmoscopy magnifier 3 from FIG.
  • FIG. 1 In the exemplary embodiment of a contactless visualization system 1 shown in FIG. 1, this is shown together with a surgical microscope 2 for eye surgery.
  • the contactless visualization system 1 comprises an ophthalmoscopy magnifier 3 and an ophthalmoscopy magnifier carrier 4, with which the ophthalmoscopy magnifier 3 can be inserted (or positioned) into an imaging beam path of the surgical microscope 2 and pushed out (or removed) from the imaging beam path, as indicated by the double arrow 5 in Fig 1 is shown schematically.
  • the position of the ophthalmoscopy magnifier 3 outside of the imaging beam path is shown in broken lines in FIG.
  • the ophthalmoscopy magnifier 3 can be placed closely over a patient's eye 6 by means of the ophthalmoscopy magnifier carrier 4, so that a real image of the fundus 7 of the patient's eye 6 that is inverted in terms of height and side is imaged in an intermediate image plane 8. This real and inverted image of the fundus 7 is then viewed with the surgical microscope 2 .
  • the surgical microscope 2 can have an illumination unit 9 for illuminating the patient's eye 6 (eg the fundus 7 here) and imaging optics 10 for enlarged imaging of the illuminated patient's eye 6 and here also for enlarged imaging of the image in the intermediate image plane 8 .
  • the patient's eye 6 with eye pupil 28 and eye lens 29 is only shown schematically here.
  • the imaging optics 10 illustrated schematically in FIG. the imaging optics 10 comprise a first beam splitter 14, which is arranged between the objective 11 and the first tube optics 12, as well as a second tube optics 15 arranged downstream of the first beam splitter 14 and an eyepiece optics 16 arranged downstream of the second tube optics 15, so that an optical insight 17 is provided, as indicated by the schematically illustrated eye 18 of a user.
  • the illumination unit 9 comprises a light source 19 , collector optics 20 arranged downstream of the light source 19 , a second beam splitter 21 arranged between the objective 11 and the first tube optics 12 , and the objective 11 .
  • the light from the light source 19 is focused by the collector optics 20 and coupled into the beam path between the second beam splitter 21 and the lens 11 by means of the second beam splitter 21 in such a way that the area of the patient's eye 6 to be illuminated is illuminated as uniformly as possible, as shown in Fig. 1 with a schematic beam path up to the intermediate image plane 8 is indicated.
  • the light source 19 can be designed, for example, as a halogen lamp, as a xenon discharge lamp, as an LED or as a laser.
  • the elements of the surgical microscope 2 described so far are arranged in a housing 22, as shown schematically in FIG.
  • the ophthalmoscopy magnifier carrier 4 is mechanically connected to the housing 22, in which case, in addition to the sliding in and out of the ophthalmoscopy magnifier 3 indicated schematically in FIG. Axis and here about the optical axis OA of the imaging beam path of the surgical microscope 2 is possible.
  • the surgical microscope 2 also includes a control unit 23, which has a processor P and a memory M and, for example, with the light source 19, the image sensor 13 and a z drive 24, with which the lens 11 can be moved in the z direction for focusing , connected is.
  • a control unit 23 which has a processor P and a memory M and, for example, with the light source 19, the image sensor 13 and a z drive 24, with which the lens 11 can be moved in the z direction for focusing , connected is.
  • the ophthalmoscopic magnifier 3 here comprises precisely a first plastic lens 27i with a first and second interface 35, 36 and a second plastic lens 272 with a first and second interface 37, 38, with a wall 30 extending in the direction of the second lens 272 being integral with the first plastic lens 27i is formed.
  • the free end 31 of the wall 30 serves as a socket 32, as can be seen in particular in connection with FIGS. 2-5.
  • the boundary surfaces 35-38 are preferably curved, with at least one of the boundary surfaces 35-38 being aspherically curved.
  • the remaining interface(s) is/are preferably spherically curved.
  • the socket 32 comprises a first, a second and a third socket section 40,
  • Each socket portion 40-42 has first and second stop portions 40i, 402; 411, 412 and 421 and 42 2 , between which an elastic clamping finger 43, 44, 45 with a clamping groove 43i, 44i, 451 is arranged.
  • the second lens 272 has three frame areas 49I-493 (particularly visible in Figures 2 and 3), which are clamped in the clamping grooves 43i, 44i and 451 of the elastic clamping fingers 43-45 and rest against the stop areas 40i-4Ü3 in such a way that the second lens 27 2 is held concentrically to the first lens 27i.
  • This type of clamping connection between the mount 32 and the second lens 27 2 can also be referred to as a snap connection.
  • the second lens 272 also has a holder connection 55 via which a detachable connection to the ophthalmoscopy magnifier carrier 4 is possible.
  • the wall 30 also serves as a mount 32 for the second lens 272, it must have certain minimum mechanical sizes and thicknesses for reasons of stability. As a result, the wall 30 is designed to be essentially closed, so that although liquid can collect between the two lenses 27i and 272, it cannot drain off again. This would lead to the optical imaging quality suffering greatly, as a result of which only partially sharp imaging or no sharp imaging at all would be possible.
  • the wall 30 here in its lower area (and thus close to the first lens 27i) has three circumferentially spaced through openings 46, 47 and 48, which are offset from one another by 120° in the circumferential direction.
  • the width of each through opening 46-48 in the circumferential direction can be 40°, for example. Because of these through openings 46-48, it is possible that the unwanted liquid from either drains itself and/or the user (e.g. the surgeon) removes the liquid when necessary.
  • a suitable liquid-absorbing tool such as a swab
  • Undesirable liquid can thus be easily removed from the space between the two lenses 27i and 272 and the desired optical imaging quality can be ensured over the long term.
  • the through openings 46-48 are preferably designed in such a way that their lower edge 46i, 47i, 481 abuts the upper boundary surface 36 of the first lens 27i.
  • the upper boundary surface 36 is the boundary surface of the first lens 27i facing the second lens 27i.
  • the lower edge 46i, 47i, 481 of the through-opening 46-48 is preferably formed in such a way that no depression is produced between the lower edge 46i, 47i, 48i of the through-opening 46-48 and the upper boundary surface 36.
  • the lower edge 46i, 471, 48i is formed, for example, in such a way that it extends essentially perpendicular to the optical axis of the first lens 27i.
  • the recesses 50 and 51 are provided for the user or surgeon. Referring to the position of the holder terminal 55 as 12 o'clock, the first and second recesses 50 and 51 are preferably provided at the 4 o'clock and 8 o'clock positions because that is where the surgeon's hands rest.
  • the first and second recesses 50 and 51 extend from the free end 31 in the direction of the first lens 27i.
  • the recesses 50-51 do not extend to the top 36 of the first lens 27i, but end in front of it in order to provide a certain height of the wall 30 in the area of the recesses 50 and 51 for reasons of stability.
  • the lower wheel 50i, 50 2 of the recesses 50 and 51 is thus above the lower edge 46i, 47i, 48i of the through openings 46-48.
  • Each of the two recesses 50 and 51 has, at the free end 31 of the wall 30, an extent of, for example, 40° in the circumferential direction.
  • the distance between the recesses 50 and 51 in the circumferential direction which is 120° here, for example, relates to the center of the recess 50, 51 at the free end 31 of the wall 30.
  • the recess 52 is 120° from the two recesses 50 and 50 in the circumferential direction 51 apart.
  • the extension (or width) of the recess 50, 51 tapers in the circumferential direction in a direction from the second lens 27 2 to the first lens 27 i.
  • the width of the recesses 50, 51 decreases in the direction of the lower edge 50i, 502 or that the recesses 50, 51 taper.
  • the through-openings 46-48 and the recesses 50-52 are arranged in the circumferential direction in such a way that a recess 50-52 and a through-opening 46-48 are provided alternately in each case. They are offset in the circumferential direction, e.g. by 60° to one another. In this way, a desired minimum height and thus a certain minimum stability can be provided at any point of the wall 30 .
  • the wall 30 is thus designed to be continuous in the circumferential direction.
  • the wall 30 is therefore not interrupted in the circumferential direction. There is thus no position in the circumferential direction at which a part of the wall does not extend in the direction from the first to the second lens 27i, 272 over at least a certain partial distance.
  • a self-contained curve running circumferentially on the wall. There is thus always a closed path in the circumferential direction.
  • the first lens 27i (with the wall 30) is designed symmetrically here in such a way that a rotation of the first lens 27i (with the wall 30) by 120° around the optical axis of the first lens 27i (with the wall 30) is directed towards itself himself depicts. There is thus a 3-fold rotational symmetry.
  • the ophthalmoscopy magnifier 3 can in particular be designed in such a way that it is detachably connected to the ophthalmoscopy magnifier carrier 4 .
  • the ophthalmoscopic magnifier 3 is designed as a disposable item and thus exactly once is usable. After use, the ophthalmoscopy magnifier 3 is disposed of, so that in particular no problems arise with an otherwise necessary cleaning and disinfection of the ophthalmoscopy magnifier 3 .
  • the ophthalmoscopic magnifier 3 is preferably made of plastic. In particular, it can be a plastic injection molded part.
  • FIG. 6 shows a further exemplary embodiment of a contactless visualization system 1 that can be used together with the surgical microscope 2 according to FIG. 1 .
  • this embodiment only the recesses 50, 51 and 52 are provided.
  • the wall 30 has no through-openings, as are present in the exemplary embodiment of FIGS. 2-5.
  • the advantage is achieved that the user or surgeon is also provided with sufficient working space in the area of the second lens 272, since the recesses 50 and 51 are provided.
  • the exemplary embodiment according to FIG. 6 thus differs from the exemplary embodiment according to FIGS. 2-5 only in that no through openings are provided. However, all other features and configurations of the embodiments of Figures 2-5 are present.
  • FIG. 7 shows another exemplary embodiment of a contactless visualization system 1 that can be used together with the surgical microscope 2 according to FIG. 1 .
  • the ophthalmoscopic magnifier 3 has only the through openings 46-48.
  • the recesses 50-52 are not provided. Otherwise, all features of the embodiment according to Figure 2-5 are realized in the same way.
  • the embodiment according to FIG. 7 has the advantage that liquid which can accumulate in the space between the two lenses 27i and 272 either drains off by itself and/or can be removed by the user if required.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Eye Examination Apparatus (AREA)
  • Microscoopes, Condenser (AREA)
  • Prostheses (AREA)
  • Lenses (AREA)

Abstract

L'invention concerne un système de visualisation sans contact (1) pour un microscope chirurgical (2) pour chirurgie oculaire. Le système de visualisation sans contact (1) a une loupe ophtalmoscopique (3) qui peut être positionnée devant l'œil d'un patient (6) et qui fournit une image réelle inversée verticalement et latéralement du fond d'œil (7) de l'œil du patient (6) sur un plan d'image intermédiaire (8) qui peut être visualisé à l'aide du microscope chirurgical (2). La loupe ophtalmoscopique (3) a une première et une seconde lentille (271, 272), la première lentille (271) étant plus proche de l'œil du patient (6) à la seconde lentille (272) lorsqu'elle est positionnée devant l'œil du patient (6), une paroi (30) s'étendant à partir de la première lentille (271) à la seconde lentille (272), l'extrémité libre (31) de ladite paroi étant réalisée sous la forme d'un support (32) dans lequel la seconde lentille (272) est montée, et au moins une ouverture de passage (47, 48, 49) étant formée dans la paroi (30) afin d'éliminer le liquide potentiellement présent dans la zone intermédiaire entre la première et la deuxième lentille (271, 272).
EP22744450.2A 2021-07-26 2022-07-06 Système de visualisation sans contact pour un microscope chirurgical pour chirurgie oculaire Pending EP4377734A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021119298.6A DE102021119298B4 (de) 2021-07-26 2021-07-26 Kontaktloses Visualisierungssystem für ein Operationsmikroskop für die Augenchirurgie
PCT/EP2022/068718 WO2023006365A1 (fr) 2021-07-26 2022-07-06 Système de visualisation sans contact pour un microscope chirurgical pour chirurgie oculaire

Publications (1)

Publication Number Publication Date
EP4377734A1 true EP4377734A1 (fr) 2024-06-05

Family

ID=82655377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22744450.2A Pending EP4377734A1 (fr) 2021-07-26 2022-07-06 Système de visualisation sans contact pour un microscope chirurgical pour chirurgie oculaire

Country Status (6)

Country Link
US (1) US12292560B2 (fr)
EP (1) EP4377734A1 (fr)
JP (1) JP7640805B2 (fr)
CN (1) CN117693702A (fr)
DE (1) DE102021119298B4 (fr)
WO (1) WO2023006365A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE102023108488A1 (de) * 2023-04-03 2024-10-10 Carl Zeiss Meditec Ag Operationsmikroskopisches System und Verfahren zum Betrieb desselben

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JP2024530892A (ja) 2024-08-27
US20240210670A1 (en) 2024-06-27
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DE102021119298B4 (de) 2025-03-27
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DE102021119298A1 (de) 2023-01-26
US12292560B2 (en) 2025-05-06

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