A multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope

Abstract

The present invention provides a multi-position stereoscopic mid-view multi-wavelength video ophthalmic surgical microscope in the field of microscopes, comprising: a zoom drum, a first micro-objective lens group is arranged in the middle, and a plurality of second micro-objective lens groups are symmetrically arranged around the first micro-objective lens group; a multi-position stereoscopic micro-camera assembly is installed on the zoom drum through the second micro-objective lens group; a mid-path micro-camera is installed on the zoom drum through the first micro-objective lens group; a multi-wavelength multi-angle lighting component is arranged directly below the zoom drum; a multi-position stereoscopic monitor is arranged below the zoom drum and connected to the multi-position stereoscopic micro-camera assembly; a multi-directional mid-path monitoring screen is arranged below the zoom drum, between the multi-wavelength multi-angle lighting component and the multi-position stereoscopic monitor, and connected to the mid-path micro-camera. The advantages of the present invention are: greatly improving the convenience, safety, and image display effect of using the microscope, reducing the fatigue of the user, and facilitating multi-person collaboration.

Description

Technical Field

[0001] The invention relates to the field of microscopes, in particular to a multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope. Background Art

[0002] The surgical microscope is a commonly used medical surgical microscopic device, and the ophthalmic surgical microscope is also widely used in ophthalmic surgery. The existing surgical microscopes mostly use an optical system composed of a main objective lens, a zoom objective lens pair, a beam splitter prism, an eyepiece and other optical lenses for the microscopic observation part; the lighting part generally uses a tungsten filament bulb, a halogen bulb, an LED lamp or a xenon lamp as a light source, and a light guide and other optical components to form a lighting system, which includes coaxial lighting, oblique lighting and slit lighting.

[0003] Quoting from the "Guidelines for the Technical Review of Surgical Microscope Registration Published by the State Food and Drug Administration": The structure of existing surgical microscopes is as follows: Fig.17 As shown, the existing surgical microscope 1' has a surgical field plane 2', which is divided into two paths by the variable magnification objective lens pair 12' after passing through the main objective lens 11', and then passes through the beam splitter 13', the binocular lens tube 14', and the eyepiece 15' before exiting the pupil for binocular viewing by the user; the surgical microscope can be installed with related accessories such as assistant mirrors and image acquisition and processing systems through the beam splitter. The assistant mirror can be equipped with a mirror tube for monocular or binocular observation for surgical assistance; the existing surgical microscope lighting system generally uses tungsten filament bulbs, halogen bulbs, LED lamps, and xenon lamps as light sources, and the lighting system is composed of light guides and other optical components, which can be divided into coaxial lighting, oblique lighting, and slit lighting.

[0004] However, existing surgical microscopes have the following disadvantages:

[0005] 1. The distance from the surgical field of view to the user's binocular exit pupils is fixed. Regardless of the user's height or hand length, they must adapt to this distance. Especially for short users with short hands, it is difficult to adapt to the posture at this distance to perform delicate microsurgery.

[0006] 2. The numerical aperture is determined by the focal length of the objective lens and the effective aperture. In order to see more clearly during surgery, the illumination needs to be increased; especially for ophthalmic surgical microscopes, if the illumination is increased without restraint in order to see clearly, it is easy to cause light radiation damage to the retina of the fundus.

[0007] 3. The capture and focusing of the surgical field target are all observed and adjusted in the binocular stereo eyepiece to distract the surgeon's attention. The patient needs to maintain one posture and not move.

[0008] 4. The lighting source has a single direction, and the cornea, lens and other media are mostly curved and highly reflective, so that reflection interference often occurs during the operation.

[0009] 5. Vitrectomy is a major function, and vitrectomy results in an inverted image. To solve the inverted image problem, a vitrectomy inverting mirror needs to be installed at the front end of the large objective lens to invert it back to a normal image, which makes the distance from the surgical field of view to the user's binocular exit pupil longer and longer, making it increasingly difficult for users with short stature and short hands to master.

[0010] 6. The user directly observes the surgical field of view through its optical system with the naked eye. Since monochromatic light, infrared light, fluorescent imaging excitation light, etc. all have visual obstructions, the existing surgical microscopes mainly use white light.

[0011] 7. The eyepiece exit pupil will cause eye fatigue in the user, and the greater the magnification of the eyepiece, the easier it is to get tired.

[0012] 8. The assistant mirror connected through the beam splitter is only suitable for assistants to observe and not for helping.

[0013] 9. Image acquisition related accessories are installed through a beam splitter, but most of them are single-side acquisition separated from the stereo dual-channel optics. The acquired image effect is regarded as "turning a blind eye". As a medical image for surgical video recording and remote teaching communication, it is still unsatisfactory.

[0014] Therefore, how to provide a multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope to improve the convenience, safety and image display effect of the microscope, reduce user fatigue and facilitate multi-person collaboration has become an urgent problem to be solved. Summary of the invention

[0015] The technical problem to be solved by the present invention is to provide a multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope, so as to improve the convenience, safety and image display effect of using the microscope, reduce user fatigue and facilitate multi-person collaboration.

[0016] The present invention is implemented as follows: a multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope, comprising:

[0017] The variable-power drum has a first microscope objective lens assembly in the middle, and a plurality of second microscope objective lens assembly positions are symmetrically arranged around the first microscope objective lens assembly position; the extended lines of the central axes of the first microscope objective lens assembly position and the second microscope objective lens assembly position intersect at the surgical field of view;

[0018] A multi-position stereoscopic microscope camera assembly is mounted on the variable-magnification drum through the second microscope objective lens assembly;

[0019] A mid-range microscopic camera is installed on the variable-magnification drum through the first microscopic objective lens assembly;

[0020] A multi-wavelength and multi-angle lighting assembly is arranged directly below the variable-magnification drum;

[0021] A multi-position stereoscopic monitor is arranged below the variable-magnification drum, located on the side of the multi-wavelength multi-angle lighting assembly, and is video-connected to the multi-position stereoscopic microscopic camera assembly;

[0022] The multi-directional center monitoring screen is arranged below the variable-magnification drum, between the multi-wavelength and multi-angle lighting assembly and the multi-position stereo monitor, and is connected to the center microscope video.

[0023] Furthermore, the multi-position stereoscopic microscopic camera assembly comprises:

[0024] At least two pairs of stereoscopic microscopic camera pairs, each of which comprises two first microscopic camera units; the two first microscopic camera units are symmetrically arranged on the variable-magnification drum through a second microscopic objective lens group.

[0025] Furthermore, the first microscopic imaging unit comprises:

[0026] A first microscope objective lens group is arranged in the second microscope objective lens group;

[0027] A first optical filter is disposed at the upper end of the first microscope objective lens group and is coaxial with the first microscope objective lens group;

[0028] The first image sensor is arranged at the upper end of the first optical filter, is on the same axis as the first microscope objective lens group and the first optical filter, and is connected to the multi-bit stereo monitor video.

[0029] Furthermore, the mid-path microscopic imaging includes a second microscopic imaging unit; the second microscopic imaging unit includes:

[0030] A second microscope objective lens group is arranged in the first microscope objective lens group;

[0031] A second optical filter is disposed at the upper end of the second microscope objective lens group and is coaxial with the second microscope objective lens group;

[0032] The second image sensor is arranged at the upper end of the second optical filter, is on the same axis as the second microscope objective lens group and the second optical filter, and is connected to the multi-directional central monitoring screen via video.

[0033] Furthermore, the multi-wavelength multi-angle lighting assembly comprises:

[0034] An illumination beam bracket is provided with a plurality of mounting holes, wherein the extended lines of the central axes of the mounting holes intersect at the surgical field of view;

[0035] A plurality of independent lighting beam units are respectively arranged in each of the mounting holes.

[0036] Furthermore, the independent lighting beam unit comprises:

[0037] A condenser lens barrel is arranged in the mounting hole;

[0038] A condenser lens assembly is arranged in the condenser lens barrel;

[0039] A third filter is disposed at the lower end of the condenser lens group;

[0040] An LED heat sink is disposed at the upper end of the condenser lens group;

[0041] The LED lamp is arranged on the bottom surface of the LED heat sink, and the illumination direction is toward the condenser lens group.

[0042] Furthermore, the LED lamp is a white light lamp, a multi-wavelength light lamp or a fluorescence angiography excitation light lamp.

[0043] Furthermore, the multi-bit stereo monitor comprises:

[0044] A plurality of stereo monitor pairs; each of the stereo monitor pairs comprises:

[0045] Two position adjustment mechanisms are arranged below the variable-power drum and are respectively located at two symmetrical sides of the multi-wavelength multi-angle lighting assembly;

[0046] Two stereo monitor units are installed on the position adjustment mechanism and are adjusted in position by the position adjustment mechanism; the stereo monitor units are video-connected to the multi-position stereo microscope camera assembly.

[0047] Furthermore, the stereo monitor unit comprises:

[0048] A monitor dark housing, with two light holes on the top, and mounted on the position adjustment mechanism;

[0049] Two monitoring screens are symmetrically arranged on the left and right sides of the interior of the monitor dark shell and are video-connected to the multi-position stereoscopic microscopic camera assembly;

[0050] Two window pieces are respectively arranged in the two light-through holes;

[0051] Two trial lenses, respectively arranged on the outer sides of the two window pieces;

[0052] Two reflectors are symmetrically arranged inside the dark housing of the monitor and are used to reflect the image displayed on the monitor screen through the window piece and the trial lens in sequence.

[0053] Furthermore, the multi-directional mid-route monitoring screen comprises:

[0054] Multiple mid-route monitoring screens, each of which is arranged between the multi-wavelength and multi-angle lighting components and the multi-position stereo monitors, and is connected to the mid-route microscopic camera video; the mid-route monitoring screen is a touch screen.

[0055] The advantages of the present invention are:

[0056] 1. By setting the multi-position stereoscopic microscope camera assembly and the multi-position stereoscopic monitor, the multi-position stereoscopic monitor receives the video shot by the multi-position stereoscopic microscope camera assembly, and flips the video upside down and mirrors the video left and right through the monitoring screen and the reflector, so that the eyes see the original image through the trial lens. In particular, during ophthalmic vitrectomy surgery, there is no need to install a vitrectomy inverted mirror as in the traditional way, so that the distance from the surgical field of view plane to the eye becomes longer and longer. The multi-position stereoscopic monitor can be adjusted up and down, front and back, and in pitch angles through a position adjustment mechanism to adapt to the height and hand length of the user, so as to facilitate delicate microsurgery, thereby greatly improving the convenience of using the microscope and reducing the fatigue of the user.

[0057] 2. The multi-position stereoscopic microscope camera assembly is set to collect images, which is convenient for processing the collected images, so that even in a variety of lighting environments (white light, multiple wavelengths of light, infrared, ultraviolet, fluorescence angiography excitation light and low illumination light, etc.), the images can be enhanced to display real-time dynamic, high-definition, high-dynamic range high-quality images of surgical microscopy, which are used for recording and interactive communication of medical images for remote teaching, thus greatly improving the image display effect.

[0058] 3. By arranging the multi-position stereo microscope camera assembly, the center microscope camera, the multi-position stereo monitor and the multi-directional center monitor screen, multiple users can operate at the same time and view the original image of the surgical site at the same time, and the multi-position stereo monitor can be adjusted by the position adjustment mechanism to adapt to users of different heights, so that users of different heights are in the best working state; and viewing the original image of the surgical site through each of the stereo monitor units and the center monitor screen is equivalent to "turning a blind eye" compared to the traditional method of connecting the assistant mirror through a beam splitter, which improves the possibility of collaboration between users and avoids the high-magnification eyepiece and the precisely positioned exit pupil, so that the eyes are not easily fatigued after long-term staring, that is, the microscope is convenient for collaboration among multiple people and reduces the fatigue of users.

[0059] 4. By setting the multi-wavelength and multi-angle lighting component, the user can turn on the corresponding independent lighting beam unit according to the actual needs of the operation and set the wavelength of the independent lighting beam unit, that is, to form a multi-angle, multi-wavelength or multi-directional lighting beam array of fluorescent angiography excitation light according to actual needs. There is no need to increase the illumination without restraint in order to see more clearly, causing damage to the fundus retina by light radiation; by adjusting the angle of illumination, high reflections generated by media such as the cornea and lens can also be avoided, allowing users to see more clearly, thereby greatly improving the safety of using the microscope.

[0060] 5. By setting the multi-position stereoscopic microscope camera assembly, mid-path microscope camera, and multi-wavelength and multi-angle lighting components, the capture, focusing, and wavelength and angle adjustment of the surgical field target can be achieved. When the surgical field target moves, the assistant can make adjustments at any time and the surgeon does not need to be distracted. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0062] Figure 1 The present invention is a schematic structural diagram of a multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope.

[0063] Figure 2 The present invention is a top view of a multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope.

[0064] Figure 3 It is a structural schematic diagram of the multi-position stereoscopic microscopic camera assembly of the present invention.

[0065] Figure 4 It is a cross-sectional view of the multi-position stereoscopic microscopic camera assembly of the present invention.

[0066] Figure 5 It is a cross-sectional view of the microscopic photography of the middle road of the present invention.

[0067] Figure 6 It is a structural schematic diagram of the multi-position stereoscopic microscopic camera assembly and the mid-path microscopic camera of the present invention.

[0068] Figure 7 It is a structural schematic diagram of a multi-bit stereo monitor of the present invention.

[0069] Figure 8 It is a top view of the multi-position stereo monitor of the present invention.

[0070] Fig. 9 It is a structural schematic diagram of a stereoscopic monitor pair of the present invention.

[0071] Fig.10 It is a structural schematic diagram of a stereoscopic monitor unit of the present invention.

[0072] Fig.11 is a cross-sectional view of a stereo monitor unit of the present invention.

[0073] Fig.12 It is a structural schematic diagram of the multi-directional middle road monitoring screen of the present invention.

[0074] Fig.13 It is a structural schematic diagram of a multi-position stereoscopic monitor and a multi-directional central monitoring screen of the present invention.

[0075] Fig.14 It is a schematic structural diagram of the multi-wavelength and multi-angle lighting assembly of the present invention.

[0076] Fig.15 It is a structural schematic diagram of the lighting beam bracket of the present invention.

[0077] Fig.16 It is a cross-sectional view of the independent lighting beam unit of the present invention.

[0078] Fig.17 This is a schematic diagram of the optical principle of a traditional surgical microscope.

[0079] Marking Description:

[0080] 100-a multi-position stereoscopic central vision multi-wavelength video ophthalmic surgical microscope, 1-a variable magnification drum, 2-a multi-position stereoscopic microscopic camera assembly, 3-a central path microscopic camera, 4-a multi-wavelength multi-angle lighting assembly, 5-a multi-position stereoscopic monitor, 6-a multi-directional central path monitoring screen, 7-an eye, 8-a surgical field of view, 11-a first microscopic objective lens assembly, 12-a second microscopic objective lens assembly, 21-a stereoscopic microscopic camera pair, 211-a first microscopic camera unit, 2111-a first microscopic objective lens assembly, 2112-a first optical filter, 2113-a first image sensor, 31-a second microscopic camera unit, 311-a second microscopic objective lens assembly, 312-a second optical filter, 313-a second image sensor, 41-an illumination Beam bracket, 42-independent lighting beam unit, 411-mounting hole, 421-condenser tube, 422-condenser group, 423-third filter, 424-LED radiator, 425-LED lamp, 51-stereoscopic monitor pair, 511-position adjustment mechanism, 512-stereoscopic monitor unit, 5121-monitor dark shell, 5122-monitor screen, 5123-window piece, 5124-trial lens, 5125-reflector, 51211-light hole, 61-mid-road monitoring screen, 1'-traditional surgical microscope, 2'-surgical field of view plane, 11'-main objective lens, 12'-zoom objective lens pair, 13'-beam splitter, 14'-binocular tube, 15'-eyepiece. DETAILED DESCRIPTION

[0081] Please refer to Figures 1 to 17As shown, a preferred embodiment of a multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope 100 of the present invention comprises:

[0082] The variable-power drum 1 has a first microscope objective lens assembly position 11 in the middle, and a plurality of second microscope objective lens assembly positions 12 are symmetrically arranged around the first microscope objective lens assembly position 11; the extended lines of the central axes of the first microscope objective lens assembly position 11 and the second microscope objective lens assembly position 12 intersect at the surgical field of view 8; the variable-power drum 1 can be rotated to switch positions, and microscope objective lens assemblies with different magnifications can be installed on the reserved second microscope objective lens assembly position 12;

[0083] The multi-position stereoscopic microscope camera assembly 2 is installed on the variable-magnification drum 1 through the second microscope objective lens assembly 12; the multi-position stereoscopic microscope camera assembly 2 can take photos while shooting, and output stereoscopic microscope videos and stereoscopic photographic picture signals of the variable-magnification multi-directional surgical field of view 8;

[0084] The middle-path microscopic camera 3 is installed on the zoom drum 1 through the first microscopic objective lens assembly 11, that is, installed at the central axis position of the field of view of the zoom drum 1; the middle-path microscopic camera 3 can take photos while shooting, and output the microscopic video and photo signals of the middle path of the surgical field of view 8;

[0085] The multi-wavelength and multi-angle lighting assembly 4 is arranged directly below the variable-magnification drum 1 and is used to provide multi-wavelength and multi-angle lighting;

[0086] The multi-position stereo monitor 5 is arranged below the variable-magnification drum 1, on the side of the multi-wavelength multi-angle lighting assembly 4, and is video-connected to the multi-position stereo microscope camera assembly 2; the multi-position stereo monitor 5 is used to display the stereo microscope video image of the surgical field 8 output by the multi-position stereo microscope camera assembly 2, and the displayed content is a normal image, that is, not an inverted or flipped image;

[0087] The multi-directional center monitoring screen 6 is arranged below the variable-magnification drum 1, between the multi-wavelength and multi-angle lighting assembly 4 and the multi-position stereo monitor 5, and is video-connected to the center microscope camera 3; the multi-directional center monitoring screen 6 is used to display the center front microscopic video image of the surgical field 8 output by the center microscope camera 3, and the displayed content is the native positive image, which can be used for capturing, focusing, and adjusting the wavelength angle of the illumination beam of the surgical field 8 target. When the target of the surgical field 8 moves, the assistant can make adjustments at any time and the surgeon does not need to be distracted.

[0088] The surgical microscope 100 is suitable for ophthalmic surgery as well as non-ophthalmic surgery.

[0089] The multi-position stereoscopic microscopic camera assembly 2 comprises:

[0090] At least two pairs of stereoscopic microscope camera pairs 21 , each of which includes two first microscope camera units 211 ; the two first microscope camera units 211 are symmetrically arranged on the variable-magnification drum 1 through the second microscope objective lens assembly 12 , that is, the stereoscopic microscope camera pairs 21 are cross-arranged.

[0091] The first microscopic imaging unit 211 comprises:

[0092] The first microscope objective lens group 2111 is disposed in the second microscope objective lens group position 12;

[0093] The first optical filter 2112 is disposed at the upper end of the first microscope objective lens group 2111 and is on the same axis as the first microscope objective lens group 2111;

[0094] The first image sensor 2113 is disposed at the upper end of the first optical filter 2112 , is on the same axis as the first microscope objective lens group 2111 and the first optical filter 2112 , and is video-connected to the multi-bit stereo monitor 5 .

[0095] The middle microscopic camera 3 includes a second microscopic camera unit 31; the second microscopic camera unit 31 includes:

[0096] The second microscope objective lens group 311 is disposed in the first microscope objective lens group position 11;

[0097] The second optical filter 312 is disposed at the upper end of the second microscope objective lens group 311 and is coaxial with the second microscope objective lens group 311;

[0098] The second image sensor 313 is disposed at the upper end of the second optical filter 312 , is on the same axis as the second microscope objective lens group 311 and the second optical filter 312 , and is video-connected to the multi-directional central monitoring screen 6 .

[0099] The multi-wavelength multi-angle lighting assembly 4 comprises:

[0100] An illumination beam bracket 41 is provided with a plurality of mounting holes 411, and the extended lines of the central axes of the mounting holes 411 intersect at the surgical field of view 8, that is, the illumination beam array takes the surgical field of view 8 as the illumination target surface; the illumination beam bracket 41 is petal-shaped and is provided with a plurality of petals;

[0101] A plurality of independent lighting beam units 42 are respectively arranged in each of the mounting holes 411; each of the independent lighting beam units 42 adjusts the wavelength and the opening position of the independent lighting beam unit 42 by observing the multi-directional central monitoring screen 6, thereby adjusting the angle of the light beam; the independent lighting beam units 42 can be arranged and assembled on the lighting beam bracket 41 by the user.

[0102] The independent lighting beam unit 42 comprises:

[0103] A focusing lens barrel 421 is disposed in the mounting hole 411 and is used for focusing light;

[0104] A condenser lens assembly 422 is disposed in the condenser lens barrel 421;

[0105] The third optical filter 423 is disposed at the lower end of the condenser lens group 422; the first optical filter 2112, the second optical filter 312 and the third optical filter 423 are all used to selectively transmit light of different wavelengths;

[0106] An LED heat sink 424 is disposed at the upper end of the condenser lens assembly 422 and is used to dissipate heat for the LED lamp 425;

[0107] The LED lamp 425 is disposed on the bottom surface of the LED heat sink 424 , and its illumination direction is toward the condenser lens assembly 422 .

[0108] The LED lamp 425 is a white light lamp, a multi-wavelength light lamp or a fluorescent angiography excitation light lamp.

[0109] The multi-bit stereo monitor 5 comprises:

[0110] A plurality of stereo monitor pairs 51; each of the stereo monitor pairs 51 comprises:

[0111] Two position adjustment mechanisms 511 are provided below the variable-magnification drum 1 and are respectively located at two symmetrical sides of the multi-wavelength multi-angle lighting assembly 4, and are used to adjust the stereo monitor unit 512 to meet the needs of users of different heights;

[0112] Two stereo monitor units 512 are installed on the position adjustment mechanism 511 and are adjusted in position by the position adjustment mechanism 511 ; the stereo monitor units 512 are video-connected to the multi-position stereo microscope camera assembly 2 .

[0113] A bracket (not shown) is also included, and each of the position adjustment mechanisms 511 is installed on the bracket.

[0114] The stereo monitor unit 512 includes:

[0115] A monitor dark housing 5121, with two light holes 51211 on the top, and mounted on the position adjustment mechanism 511;

[0116] Two monitoring screens 5122 are symmetrically arranged on the left and right sides of the monitor dark shell 5121 and are video-connected to the multi-position stereoscopic microscopic camera assembly 2;

[0117] Two window pieces 5123 are respectively disposed in the two light-through holes 51211;

[0118] Two trial lenses 5124 are respectively arranged on the outer sides of the two window pieces 5123;

[0119] Two reflectors 5125 are symmetrically arranged inside the monitor dark housing 5121, and are used to reflect the image displayed on the monitor screen 5122 through the window piece 5123 and the trial lens 5124 in sequence.

[0120] The multi-directional middle road monitoring screen 6 comprises:

[0121] A plurality of center monitoring screens 61 are provided, each of the center monitoring screens 61 is arranged between the multi-wavelength and multi-angle lighting assembly 4 and the multi-position stereo monitor 5, and is video-connected to the center microscope camera 3; the center monitoring screen 61 is a touch screen that can edit and output image tags for real-time interactive communication; the center monitoring screen 61 obtains a native positive image display by rotating, flipping up and down, and mirroring left and right.

[0122] Working principle of the present invention:

[0123] The multi-wavelength and multi-angle lighting assembly 4 is turned on to provide lighting, and the user adjusts the position and angle of the stereo monitor unit 512 through the position adjustment mechanism 511, and starts the multi-position stereo microscope camera assembly 2, the center microscope camera 3, the multi-position stereo monitor 5 and the multi-directional center monitor screen 6; the image captured by the multi-position stereo microscope camera assembly 2 is transmitted to the multi-position stereo monitor 5, and the original image is displayed; the image captured by the center microscope camera 3 is transmitted to the multi-directional center monitor screen 6, and the original image is displayed; the eyes 7 of multiple users respectively observe the surgical field of view 8 displayed on the monitor screen 5122 through the trial lens 5124, the window piece 5123, and the reflector 5125 of the stereo monitor unit 512 to perform collaborative surgery, and observe the center surgical field of view 8 through the center monitor screen 61.

[0124] In summary, the advantages of the present invention are:

[0125] 1. By setting the multi-position stereoscopic microscope camera assembly and the multi-position stereoscopic monitor, the multi-position stereoscopic monitor receives the video shot by the multi-position stereoscopic microscope camera assembly, and flips the video upside down and mirrors the video left and right through the monitoring screen and the reflector, so that the eyes see the original image through the trial lens. In particular, during ophthalmic vitrectomy surgery, there is no need to install a vitrectomy inverted mirror as in the traditional way, so that the distance from the surgical field of view plane to the eye becomes longer and longer. The multi-position stereoscopic monitor can be adjusted up and down, front and back, and in pitch angles through a position adjustment mechanism to adapt to the height and hand length of the user, so as to facilitate delicate microsurgery, thereby greatly improving the convenience of using the microscope and reducing the fatigue of the user.

[0126] 2. The multi-position stereoscopic microscope camera assembly is set to collect images, which is convenient for processing the collected images, so that even in a variety of lighting environments (white light, multiple wavelengths of light, infrared, ultraviolet, fluorescence angiography excitation light and low illumination light, etc.), the images can be enhanced to display real-time dynamic, high-definition, high-dynamic range high-quality images of surgical microscopy, which are used for recording and interactive communication of medical images for remote teaching, thus greatly improving the image display effect.

[0127] 3. By arranging the multi-position stereo microscope camera assembly, the center microscope camera, the multi-position stereo monitor and the multi-directional center monitor screen, multiple users can operate at the same time and view the original image of the surgical site at the same time, and the multi-position stereo monitor can be adjusted by the position adjustment mechanism to adapt to users of different heights, so that users of different heights are in the best working state; and viewing the original image of the surgical site through each of the stereo monitor units and the center monitor screen is equivalent to "turning a blind eye" compared to the traditional method of connecting the assistant mirror through a beam splitter, which improves the possibility of collaboration between users and avoids the high-magnification eyepiece and the precisely positioned exit pupil, so that the eyes are not easily fatigued after long-term staring, that is, the microscope is convenient for collaboration among multiple people and reduces the fatigue of users.

[0128] 4. By setting the multi-wavelength and multi-angle lighting component, the user can turn on the corresponding independent lighting beam unit according to the actual needs of the operation and set the wavelength of the independent lighting beam unit, that is, to form a multi-angle, multi-wavelength or multi-directional lighting beam array of fluorescent angiography excitation light according to actual needs. There is no need to increase the illumination without restraint in order to see more clearly, causing damage to the fundus retina by light radiation; by adjusting the angle of illumination, high reflections generated by media such as the cornea and lens can also be avoided, allowing users to see more clearly, thereby greatly improving the safety of using the microscope.

[0129] 5. By setting the multi-position stereoscopic microscope camera assembly, mid-path microscope camera, and multi-wavelength and multi-angle lighting components, the capture, focusing, and wavelength and angle adjustment of the surgical field target can be achieved. When the surgical field target moves, the assistant can make adjustments at any time and the surgeon does not need to be distracted.

[0130] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope, characterized in that: include: The variable-power drum has a first microscope objective lens assembly in the middle, and a plurality of second microscope objective lens assembly positions are symmetrically arranged around the first microscope objective lens assembly position; the extended lines of the central axes of the first microscope objective lens assembly position and the second microscope objective lens assembly position intersect at the surgical field of view; A multi-position stereoscopic microscope camera assembly is mounted on the variable-magnification drum through the second microscope objective lens assembly; A mid-path microscopic camera is installed on the variable-magnification drum through the first microscopic objective lens assembly; A multi-wavelength and multi-angle lighting assembly is arranged directly below the variable-magnification drum; A multi-position stereoscopic monitor is arranged below the variable-magnification drum, located on the side of the multi-wavelength multi-angle lighting assembly, and is video-connected to the multi-position stereoscopic microscopic camera assembly; A multi-directional mid-channel monitoring screen is provided below the variable-magnification drum, between the multi-wavelength multi-angle lighting assembly and the multi-position stereo monitor, and is connected to the mid-channel microscopic video camera; The multi-position stereoscopic microscopic camera assembly comprises: At least two pairs of stereoscopic microscopic camera pairs, each of which comprises two first microscopic camera units; the two first microscopic camera units are symmetrically arranged on the variable-magnification drum through a second microscopic objective lens group; The multi-directional mid-road monitoring screen comprises: Multiple mid-route monitoring screens, each of which is arranged between the multi-wavelength and multi-angle lighting components and the multi-position stereo monitors, and is connected to the mid-route microscopic camera video; the mid-route monitoring screen is a touch screen.

2. The multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope according to claim 1, characterized in that: The first microscopic imaging unit comprises: A first microscope objective lens group is arranged in the second microscope objective lens group; A first optical filter is disposed at the upper end of the first microscope objective lens group and is coaxial with the first microscope objective lens group; The first image sensor is arranged at the upper end of the first optical filter, is on the same axis as the first microscope objective lens group and the first optical filter, and is connected to the multi-bit stereo monitor video.

3. The multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope according to claim 1, characterized in that: The mid-path micro-imaging includes a second micro-imaging unit; the second micro-imaging unit includes: A second microscope objective lens group is arranged in the first microscope objective lens group; A second optical filter is disposed at the upper end of the second microscope objective lens group and is coaxial with the second microscope objective lens group; The second image sensor is arranged at the upper end of the second optical filter, is on the same axis as the second microscope objective lens group and the second optical filter, and is connected to the multi-directional central monitoring screen via video.

4. The multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope according to claim 1, characterized in that: The multi-wavelength multi-angle lighting assembly comprises: An illumination beam bracket is provided with a plurality of mounting holes, wherein the extended lines of the central axes of the mounting holes intersect at the surgical field of view; A plurality of independent lighting beam units are respectively arranged in each of the mounting holes.

5. The multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope according to claim 4, characterized in that: The independent lighting beam unit comprises: A condenser lens barrel is arranged in the mounting hole; A condenser lens assembly is arranged in the condenser lens barrel; A third filter is disposed at the lower end of the condenser lens group; An LED heat sink is disposed at the upper end of the condenser lens group; The LED lamp is arranged on the bottom surface of the LED heat sink, and the illumination direction is toward the condenser lens group.

6. The multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope according to claim 5, characterized in that: The LED lamp is a white light lamp, a multi-wavelength light lamp or a fluorescent angiography excitation light lamp.

7. The multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope according to claim 1, characterized in that: The multi-bit stereo monitor comprises: A plurality of stereo monitor pairs; each of the stereo monitor pairs comprises: Two position adjustment mechanisms are arranged below the variable-power drum and are respectively located at two symmetrical sides of the multi-wavelength multi-angle lighting assembly; Two stereo monitor units are installed on the position adjustment mechanism and are adjusted in position by the position adjustment mechanism; the stereo monitor units are video-connected to the multi-position stereo microscope camera assembly.

8. The multi-position stereoscopic multi-wavelength video ophthalmic surgical microscope according to claim 7, characterized in that: The stereo monitor unit comprises: A monitor dark housing, with two light holes on the top, and mounted on the position adjustment mechanism; Two monitoring screens are symmetrically arranged on the left and right sides of the interior of the monitor dark shell and are video-connected to the multi-position stereoscopic microscopic camera assembly; Two window pieces are respectively arranged in the two light-through holes; Two trial lenses, respectively arranged on the outer sides of the two window pieces; Two reflectors are symmetrically arranged inside the dark housing of the monitor and are used to reflect the image displayed on the monitor screen through the window piece and the trial lens in sequence.

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