Ophthalmologic operation microscope red light reflection enhancing device

Abstract

The utility model relates to a red light reflection enhancing device of an ophthalmologic operation microscope, which comprises a light guide shell, a connecting device is arranged at the upper end of the light guide shell, a light-emitting device is arranged at one end of the light guide shell, and a lens structure is arranged in the light guide shell. The utility model relates to the technical field of medical instruments for ophthalmologic operations. According to the red light reflection enhancing device of the ophthalmologic operation microscope, light generated by the light-emitting equipment is divided into two light rays through the spectroscope, one light ray vertically enters the pupil, the other light ray directly penetrates through the spectroscope, and the light rays vertically entering the pupil are reflected through a crystalline lens in an eyeball; a part of light penetrates through the spectroscope and extends upwards along the objective lens until the light is in contact with the eyes of an observer, and when the eyes of a patient are observed, the light entering the pupils and the reflected light are always parallel to the axis of the eyeballs of the patient, so that the observation clearness can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ophthalmic surgical medical instruments, in particular to a red light reflection enhancing device for an ophthalmic surgical microscope. Background Art

[0002] During cataract surgery, the red light reflex of a microscope is very important to the doctor's operation. Currently, most microscopes achieve red light reflex by splitting the light source of the microscope itself.

[0003] In order to prevent the light source from affecting the observation of the microscope, the light source will mostly enter the patient's eye at a certain angle, and then be reflected by the lens in the patient's eye to achieve the effect of illuminating the patient's eye. However, due to the limited diameter of the pupil, most of the light with a large incident angle cannot be reflected, making the eye dark, which is not conducive to surgery.

[0004] Current ophthalmic surgical microscopes are limited by their structural space and field of view, and their own light source cannot be directed perpendicularly into the patient's eyes. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a red light reflection enhancement device for an ophthalmic surgical microscope, so as to solve the technical problems mentioned in the above background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A red light reflection enhancement device for an ophthalmic surgical microscope comprises a light guide housing, a connection device is provided at the upper end of the light guide housing, a light emitting device is provided at one end of the light guide housing, and a lens structure is provided inside the light guide housing;

[0008] The lens structure includes a first slide and a second slide. The outer peripheral walls of the first slide and the second slide are in contact with the inner wall of the light guide housing and are slidably connected to the light guide housing. The first slide is embedded in the interior of the first lens, and the second slide is provided in the interior of the second lens. The side wall of the light guide housing is provided with an adjustment groove at a position corresponding to the adjustment screw, and the lens adjustment device is provided in the adjustment groove.

[0009] A beam splitter is arranged inside the light guide housing and below the connecting device.

[0010] Furthermore, a guide rail is fixedly provided on the inner side wall of the light guide housing, and the side walls of the first slide plate and the second slide plate are both provided with a sliding groove matched with the guide rail.

[0011] Furthermore, the lens adjustment device includes an adjusting screw, one end of which is rotatably provided with a mounting ring, the mounting ring is slidingly connected to the groove wall of the adjustment groove, and the mounting ring is fixedly connected to the first slide, and the side wall of the second slide is provided with an adjusting screw groove that cooperates with the thread of the adjusting screw.

[0012] Furthermore, the light-emitting device includes a connecting frame, which is fixedly connected to the light-guiding shell by bolts, a power supply compartment is provided inside the connecting frame, a fixing plate is provided at the frame opening of the connecting frame, and light-emitting lamp beads are provided inside the fixing plate.

[0013] Furthermore, the connecting device includes a plug-in tube, which is fixedly connected to the light guide housing and communicates with the light guide housing. The four side walls of the plug-in tube are all provided with locking devices.

[0014] Furthermore, the spectrometer includes a mounting plate, a lens mounting groove is opened inside the mounting plate, and rotating disks are provided at both ends of the mounting plate. The rotating disks pass through the light guide shell and are rotatably connected to the light guide shell. The outer wall of the rotating disk and the outer wall of the light guide shell are both provided with adjustment scales.

[0015] Furthermore, the locking device includes a locking screw, which is rotatably installed on the side wall of the plug-in tube. The outer peripheral wall of the locking screw is threadedly connected to a push plate. Push rods are provided at both ends of the push plate. The end of the push rod away from the push plate passes through the plug-in tube and is slidably connected to the plug-in tube. The two push rods are jointly provided with an arc-shaped pressure plate at one end located inside the plug-in tube.

[0016] Furthermore, the vertical heights of the two corresponding groups of locking devices are equal, and there is a vertical height difference between adjacent locking devices.

[0017] In summary, the present invention has at least one of the following beneficial technical effects:

[0018] 1. A red light reflex enhancement device for an ophthalmic surgical microscope. The light generated by the light-emitting device is split into two rays by a beam splitter. One of the rays enters the pupil perpendicularly, while the other passes directly through the beam splitter. The light entering the pupil perpendicularly is reflected by the lens in the eye, and a portion of the light passes through the beam splitter and extends upward through the objective lens until it contacts the observer's eye. When observing the patient's eye, the light entering the pupil and the reflected light are always parallel to the axis of the patient's eyeball, thereby effectively improving the clarity of observation.

[0019] 2. This red light reflection enhancement device for an ophthalmic surgical microscope has the following features: when connecting the insertion tube and the objective lens, the locking screw is rotated. Through the rotation of the locking screw, the push plate gradually approaches the insertion tube. At this time, the end of the push rod provided with the arc-shaped pressure plate gradually approaches the outer peripheral wall of the objective lens until it contacts the outer peripheral wall of the objective lens. When all four sets of locking devices contact the outer peripheral wall of the objective lens, the insertion tube is achieved, and the insertion tube can be fixed on objective lenses of different sizes, thereby achieving the purpose of improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 The utility model is a structural schematic diagram of a red light reflection enhancement device for an ophthalmic surgical microscope.

[0022] Figure 2 The utility model is a schematic diagram of the internal structure of a red light reflection enhancement device for an ophthalmic surgical microscope.

[0023] Figure 3 The utility model is a schematic structural diagram of the lens structure of a red light reflection enhancement device for an ophthalmic surgical microscope.

[0024] Figure 4 The utility model is a structural schematic diagram of a locking device of a red light reflection enhancement device for an ophthalmic surgical microscope.

[0025] Figure 5 The utility model is a schematic diagram of the structure of a spectroscope of a red light reflection enhancement device for an ophthalmic surgical microscope.

[0026] In the figure, 1. light guide housing; 2. connecting device; 21. plug-in tube; 22. locking device; 221. locking screw; 222. pushing plate; 223. push rod; 224. arc pressure plate; 3. light-emitting device; 31. connecting frame; 32. power supply compartment; 33. fixing plate; 34. light-emitting lamp beads; 4. lens structure; 41. first slide; 42. second slide; 43. first lens; 44. second lens; 5. adjustment slot; 6. lens adjustment device; 61. adjustment screw; 62. mounting ring; 63. adjustment screw slot; 7. spectrometer; 71. mounting plate; 72. lens mounting slot; 73. rotating disk; 74. adjustment scale; 8. guide rail; 9. sliding slot. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] Example:

[0029] Reference Figure 1 - Figure 5 The present invention discloses a red light reflection enhancement device for an ophthalmic surgical microscope, comprising a light guide housing 1, a connecting device 2 being provided at the upper end of the light guide housing 1, a light emitting device 3 being provided at one end of the light guide housing 1, and a lens structure 4 being provided inside the light guide housing 1;

[0030] The lens structure 4 includes a first slide 41 and a second slide 42. The outer peripheral walls of the first slide 41 and the second slide 42 are in contact with the inner wall of the light guide housing 1 and are slidably connected to the light guide housing 1. A first lens 43 is embedded in the interior of the first slide 41, and a second lens 44 is disposed in the interior of the second slide 42. An adjustment slot 5 is formed on the side wall of the light guide housing 1 at a position corresponding to the adjustment screw 61, and a lens adjustment device 6 is disposed in the adjustment slot 5.

[0031] A beam splitter 7 is provided inside the light guide housing 1 and below the connecting device 2 .

[0032] In this embodiment, when installing the device, the light guide housing 1 is installed at the bottom objective lens of the microscope through the connecting device 2, and the positions of the first slide 41 and the second slide 42 are adjusted so that the light emitted by the light-emitting device 3 is focused into a straight line. When the beam splitter 7 is rotated so that the light is irradiated on the surface of the beam splitter 7, the light is directed vertically downward, and the connecting device 2 is adjusted so that the light reflected by the beam splitter 7 is in the same straight line with the axis of the microscope objective lens. At this time, the installation of the device is completed;

[0033] When the device is used, it is moved to the top of the patient's eyeball, with the axis of the patient's pupil aligned with the axis of the microscope objective lens. The light-emitting device 3 is then turned on. The light generated at this time is split into two rays by the beam splitter 7. One of the rays enters the pupil vertically, and the other passes directly through the beam splitter 7. The light that enters the pupil vertically is reflected by the lens in the eyeball, and part of the light passes through the beam splitter 7 and extends directly to the objective lens upward until it contacts the observer's eye.

[0034] In summary, when observing the patient's eyes, the incident light and the reflected light are always parallel to the axis of the patient's eyeball, thereby effectively improving the clarity of observation.

[0035] In a further preferred embodiment of the present invention, Figure 1-5 As shown, a guide rail 8 is fixedly provided on the inner side wall of the light guide housing 1 , and a sliding groove 9 that matches the guide rail 8 is formed on the side walls of the first slide 41 and the second slide 42 .

[0036] In this embodiment, the guide rail 8 and the sliding groove 9 are provided to guide the first slide 41 and the second slide 42 , so as to improve the stability of the first slide 41 and the second slide 42 when sliding inside the light guide housing 1 .

[0037] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the lens adjustment device 6 includes an adjusting screw 61, and a mounting ring 62 is rotatably provided at one end of the adjusting screw 61. The mounting ring 62 is slidingly connected to the groove wall of the adjustment groove 5, and the mounting ring 62 is fixedly connected to the first slide 41. The side wall of the second slide 42 is provided with an adjusting screw groove 63 that is threadedly matched with the adjusting screw 61.

[0038] In this embodiment, when adjusting the position of the first slide 41 and the second slide 42, the adjusting screw 61 is manually turned to rotate the adjusting screw 61. With the cooperation of the adjusting screw groove 63, the second slide 42 can be moved separately to adjust the distance between the first lens 43 and the second lens 44. Without rotating the adjusting screw 61, the adjusting screw 61 is pushed to slide inside the adjusting groove 5 to simultaneously adjust the distance between the first lens 43 and the second lens 44 and the light-emitting device 3, so as to achieve the purpose of focusing by adjusting the distance between the first lens 43 and the second lens 44.

[0039] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the light-emitting device 3 includes a connecting frame 31, which is fixedly connected to the light-guiding shell 1 by bolts. A power supply compartment 32 is provided inside the connecting frame 31, a fixing plate 33 is provided at the frame opening of the connecting frame 31, and a light-emitting lamp bead 34 is provided inside the fixing plate 33.

[0040] In this embodiment, the power supply compartment 32 is used to install batteries or power supply wires to power the light-emitting lamp beads 34 so that the light-emitting lamp beads 34 generate light.

[0041] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the connecting device 2 includes a plug-in tube 21 , which is fixedly connected to the light guide housing 1 and communicates with the light guide housing 1 , and locking devices 22 are provided on the four side walls of the plug-in tube 21 .

[0042] In this embodiment, when installing the light guide housing 1 , the plug-in tube 21 is first sleeved on the outer peripheral wall of the objective lens of the microscope, and the plug-in tube 21 is fixedly connected to the objective lens of the microscope through four locking devices 22 .

[0043] In a further preferred embodiment of the present invention, Figure 1-5As shown, the spectrometer 7 includes a mounting plate 71, a lens mounting groove 72 is opened inside the mounting plate 71, and a rotating disk 73 is provided at both ends of the mounting plate 71. The rotating disk 73 passes through the light guide housing 1 and is rotatably connected to the light guide housing 1. The outer wall of the rotating disk 73 and the outer wall of the light guide housing 1 are both provided with adjustment scales 74.

[0044] In this embodiment, when in use, the rotating disk 73 is manually rotated to change the angle of the mounting plate 71 to adjust the angle of the lens inside the lens mounting groove 72, and the angle of the mounting plate 71 can be accurately adjusted by adjusting the setting of the scale 74.

[0045] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the locking device 22 includes a locking screw 221, which is rotatably mounted on the side wall of the plug-in tube 21. The outer peripheral wall of the locking screw 221 is threadedly connected to a push plate 222. Push rods 223 are provided at both ends of the push plate 222. The end of the push rod 223 away from the push plate 222 passes through the plug-in tube 21 and is slidably connected to the plug-in tube 21. The two push rods 223 are jointly provided with an arc-shaped pressure plate 224 at one end located inside the plug-in tube 21.

[0046] In this embodiment, when the insertion tube 21 and the objective lens are connected to each other, the locking screw 221 is rotated. Through the rotation of the locking screw 221, the push plate 222 gradually approaches the insertion tube 21. At this time, the end of the push rod 223 provided with the arc-shaped pressure plate 224 will gradually approach the outer peripheral wall of the objective lens until it contacts the outer peripheral wall of the objective lens. When all four sets of locking devices 22 contact the outer peripheral wall of the objective lens, the purpose of the insertion tube 21 is achieved.

[0047] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the vertical heights of the two corresponding groups of locking devices 22 are equal, and there is a vertical height difference between adjacent locking devices 22 .

[0048] In this embodiment, since there is a vertical height difference between adjacent locking devices 22 , when providing a supporting force, the supporting area with the objective lens can be effectively expanded, thereby improving the stability of the insertion tube 21 .

[0049] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A red light reflection enhancement device for an ophthalmic surgical microscope, characterized in that: It comprises a light guide housing (1), a connection device (2) is provided at the upper end of the light guide housing (1), a light emitting device (3) is provided at one end of the light guide housing (1), and a lens structure (4) is provided inside the light guide housing (1); The lens structure (4) comprises a first slide (41) and a second slide (42); the outer peripheral walls of the first slide (41) and the second slide (42) are in contact with the inner wall of the light guide housing (1) and are slidably connected to the light guide housing (1); a first lens (43) is embedded in the interior of the first slide (41); a second lens (44) is arranged in the interior of the second slide (42); an adjustment groove (5) is provided at a position on the side wall of the light guide housing (1) corresponding to the adjustment screw (61); and a lens adjustment device (6) is arranged in the interior of the adjustment groove (5); A spectroscope (7) is provided inside the light guide housing (1) and below the connecting device (2).

2. The red light reflection enhancing device for an ophthalmic surgical microscope according to claim 1, characterized in that: A guide rail (8) is fixedly provided on the inner side wall of the light guide housing (1), and a sliding groove (9) matching the guide rail (8) is provided on the side walls of the first slide (41) and the second slide (42).

3. The red light reflection enhancing device for an ophthalmic surgical microscope according to claim 2, characterized in that: The lens adjustment device (6) includes an adjustment screw (61), one end of which is rotatably provided with a mounting ring (62), the mounting ring (62) being slidably connected to the groove wall of the adjustment groove (5), and the mounting ring (62) being fixedly connected to the first slide (41), and the side wall of the second slide (42) being provided with an adjustment screw groove (63) threadedly matched with the adjustment screw (61).

4. The red light reflection enhancing device for an ophthalmic surgical microscope according to claim 3, characterized in that: The light-emitting device (3) comprises a connecting frame (31), the connecting frame (31) is fixedly connected to the light-guiding housing (1) by means of bolts, a power supply compartment (32) is provided inside the connecting frame (31), a fixing plate (33) is provided at the frame opening of the connecting frame (31), and a light-emitting lamp bead (34) is provided inside the fixing plate (33).

5. The red light reflection enhancing device for an ophthalmic surgical microscope according to claim 4, characterized in that: The connecting device (2) comprises a plug-in tube (21), the plug-in tube (21) is fixedly connected to the light guide housing (1), and the plug-in tube (21) and the light guide housing (1) are interconnected, and locking devices (22) are provided on the four side walls of the plug-in tube (21).

6. The red light reflection enhancing device for an ophthalmic surgical microscope according to claim 5, characterized in that: The spectroscope (7) comprises a mounting plate (71), a lens mounting groove (72) is provided inside the mounting plate (71), rotating disks (73) are provided at both ends of the mounting plate (71), the rotating disks (73) pass through the light guide housing (1) and are rotatably connected to the light guide housing (1), and the outer wall of the rotating disk (73) and the outer wall of the light guide housing (1) are both provided with adjustment scales (74).

7. The red light reflection enhancing device for an ophthalmic surgical microscope according to claim 6, characterized in that: The locking device (22) includes a locking screw (221), which is rotatably mounted on the side wall of the plug tube (21), and the outer peripheral wall of the locking screw (221) is threadedly connected to a push plate (222). Push rods (223) are provided at both ends of the push plate (222), and one end of the push rod (223) away from the push plate (222) passes through the plug tube (21) and is slidably connected to the plug tube (21). The ends of the two push rods (223) located inside the plug tube (21) are jointly provided with an arc-shaped pressure plate (224).

8. The red light reflection enhancing device for an ophthalmic surgical microscope according to claim 7, characterized in that: The vertical heights of the two corresponding groups of locking devices (22) are equal, and there is a vertical height difference between adjacent locking devices (22).

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