Non-contact funduscope

Abstract

The utility model discloses a non -contact fundus mirror relates to non -contact fundus mirror technical field, and its technical scheme is: including the frame, the frame one side fixedly equipped with the connecting block, the connecting block one side fixedly equipped with the fixed axle, and the fixed axle outside is equipped with the connecting frame, and the connecting frame bottom is fixedly equipped with the sliding rod, and the sliding rod one side is fixedly equipped with the fixed plate, and the fixed plate is connected with the connecting frame between bearing and has the screw rod, and the screw rod outside fixedly is equipped with the rotating wheel, and the screw rod outside is equipped with the sliding frame through the thread, and the sliding rod is through the sliding frame and is connected with the sliding frame sliding, and the sliding frame one side is equipped with the connecting rod, and the connecting rod one side is fixedly equipped with the L type board, and the L type board one side is fixedly equipped with the fundus wide -angle mirror, and the utility model has the beneficial effect: user can easily adjust the distance between fundus wide -angle mirror and frame, and easily adjusts the focal length to adapt to the eye structure and the examination demand of different patients, and this design not only has improved the flexibility of examination, also greatly simplified the operation of adjusting the focal length.

Description

Technical Field

[0001] This utility model relates to the field of non-contact ophthalmoscope technology, specifically to a non-contact ophthalmoscope. Background Technology

[0002] A non-contact ophthalmoscope is an ophthalmic instrument that uses optical imaging technology to clearly observe structures such as blood vessels, optic nerves, and retina in the fundus without touching the eyeball.

[0003] Existing non-contact ophthalmoscopes are inconvenient for adjusting the distance of the ophthalmoscope and for changing the ophthalmoscope. Utility Model Content

[0004] Therefore, this utility model provides a non-contact ophthalmoscope to solve the problems of inconvenience in adjusting the distance of the ophthalmoscope and replacing the ophthalmoscope.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a non-contact fundus lens, including a frame, a connecting block fixedly mounted on one side of the frame, a fixed shaft fixedly mounted on one side of the connecting block, a connecting frame sleeved on the outside of the fixed shaft, a sliding rod fixedly mounted on the bottom of the connecting frame, a fixed plate fixedly mounted on one side of the sliding rod, a lead screw connected to the fixed plate and the connecting frame via a bearing, an image-reversing reducing lens fixedly mounted on one side of the connecting frame, a rotating wheel fixedly mounted on the outside of the lead screw, a slide frame threaded onto the outside of the lead screw, the sliding rod passing through the slide frame and slidably connected to the slide frame, a connecting rod mounted on one side of the slide frame, an L-shaped plate fixedly mounted on one side of the connecting rod, and a fundus wide-angle lens fixedly mounted on one side of the L-shaped plate.

[0006] Preferably, one side of the carriage is connected to a bolt by a thread, and one end of the bolt is in contact with the connecting rod.

[0007] Preferably, the bottom of the eyeglass frame has an inner groove.

[0008] Preferably, a slot is provided on one side of the connecting frame.

[0009] Preferably, an inner ring is fixedly provided at the bottom of the frame, a rotating ring is sleeved on the outside of the inner ring, a retaining plate is fixedly provided on one side of the rotating ring, and the inner ring is in contact with the inverted image reducing mirror.

[0010] Preferably, the card plate and the card slot are engaged.

[0011] Preferably, a chuck is provided on one side of the eyeglass frame.

[0012] The present invention has the following advantages:

[0013] 1. Through the cooperation of the rotating wheel and lead screw, users can easily adjust the distance between the fundus wide-angle lens and the frame, and easily adjust the focus to adapt to the different eye structures and examination needs of different patients. This design not only improves the flexibility of the examination, but also greatly simplifies the focus adjustment operation, allowing doctors to focus more on the examination process. The connecting rod and the slide are connected by bolts, making the replacement of the fundus wide-angle lens simple and quick. Doctors can quickly change different types of fundus wide-angle lenses according to the examination needs, improving the efficiency and accuracy of the examination. In addition, this design also facilitates the cleaning and maintenance of the fundus lens, extending the service life of the equipment.

[0014] 2. Through the cooperation of the fixed shaft, connecting frame, rotating ring and clamping plate, this utility model achieves stable support and positioning of the fundus wide-angle lens. Even if the patient moves or accidentally touches it during the examination, the fundus wide-angle lens can remain stable, ensuring the accuracy and safety of the examination. When not in use, the inverted image reducing lens and fundus lens are raised, and when in use, the inverted image reducing lens and fundus lens are lowered and closed. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 A bottom view of the overall structure provided for this utility model;

[0018] Figure 2 The overall structural front view provided for this utility model;

[0019] Figure 3 A cross-sectional view of the overall structure provided for this utility model;

[0020] Figure 4 Provided by this utility model Figure 3 Enlarged view of the structure of section A in the middle.

[0021] In the diagram: 1. Frame; 2. Inner ring; 3. Rotating ring; 4. Clamping plate; 5. Connecting block; 6. Connecting frame; 7. Lead screw; 8. Slide rod; 9. Rotating wheel; 10. Fixing plate; 11. Slide carriage; 12. Connecting rod; 13. L-shaped plate; 14. Fundus wide-angle lens; 15. Bolt; 16. Fixing shaft; 17. Inner groove; 18. Clamping slot; 19. Inverted image reducing lens; 20. Chuck. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] See attached document Figure 1 - Appendix Figure 4 The non-contact fundus lens provided by this utility model includes a frame 1. A connecting block 5 is fixedly provided on one side of the frame 1. A fixing shaft 16 is fixedly provided on one side of the connecting block 5. A connecting frame 6 is sleeved on the outside of the fixing shaft 16. A sliding rod 8 is fixedly provided at the bottom of the connecting frame 6. A fixing plate 10 is fixedly provided on one side of the sliding rod 8. A lead screw 7 is connected to the connecting frame 6 through a bearing. An image-reversing reducing lens 19 is fixedly provided on one side of the connecting frame 6. A rotating wheel 9 is fixedly sleeved on the outside of the lead screw 7. A slide 11 is threaded on the outside of the lead screw 7. The sliding rod 8 passes through the slide 11 and is slidably connected to the slide 11. A connecting rod 12 is provided on one side of the slide 11. An L-shaped plate 13 is fixedly provided on one side of the connecting rod 12. A fundus wide-angle lens 14 is fixedly provided on one side of the L-shaped plate 13. A bolt 15 is threadedly connected to one side of the slide 11. One end of the bolt 15 is in contact with the connecting rod 12.

[0024] In this embodiment, the connecting rod 12 passes through the slide 11, and then the bolt 15 is rotated. The bolt 15 limits and fixes the connecting rod 12, so that the fundus wide-angle lens 14 is at the bottom of the frame 1. When the fundus wide-angle lens 14 is not in use, the connecting rod 12 can be rotated. The connecting rod 12 drives the L-shaped plate 13 to rotate, and the L-shaped plate 13 drives the fundus wide-angle lens 14 to rotate away from the bottom of the frame 1. Then the bolt 15 is rotated to limit and fix the connecting rod 12, which facilitates the transfer of the fundus wide-angle lens 14. When adjusting the distance between the frame 1 and the fundus wide-angle lens 14, the rotating wheel 9 is rotated. The rotating wheel 9 drives the lead screw 7 to rotate, and the lead screw 7 drives the slide 11 to move. The slide 11 drives the connecting rod 12 to move, and the connecting rod 12 drives the L-shaped plate 13 to move. The L-shaped plate 13 drives the fundus wide-angle lens 14 to move. A motor can be installed at the hole on the fixing plate 10 to achieve the purpose of distance adjustment.

[0025] In order to facilitate insertion, the device adopts the following technical solution: the bottom of the frame 1 is provided with an inner groove 17, which facilitates the entry of the connecting frame 6 from one side.

[0026] To achieve the purpose of limiting the position, the device adopts the following technical solution: a slot 18 is provided on one side of the connecting frame 6, an inner ring 2 is fixedly provided at the bottom of the lens frame 1, a rotating ring 3 is sleeved on the outside of the inner ring 2, a locking plate 4 is fixedly provided on one side of the rotating ring 3, the locking plate 4 is engaged with the slot 18, the inner ring 2 is in contact with the inverted image reducing mirror 19, the connecting frame 6 is rotated, the connecting frame 6 rotates around the fixed axis 16, one side of the connecting frame 6 enters the inner groove 17, and then the rotating ring 3 is rotated, the rotating ring 3 drives the locking plate 4 to rotate, the locking plate 4 is engaged with the slot 18, thereby fixing the position of the connecting frame 6, and the inverted image reducing mirror 19 can produce an inverted and reduced image.

[0027] To achieve the purpose of installation, the device adopts the following technical solution: a chuck 20 is provided on one side of the microscope frame 1, which can be connected to the bayonet on the microscope.

[0028] The usage process of this utility model is as follows: When using this utility model, rotate the connecting frame 6. The connecting frame 6 rotates around the fixed shaft 16. One side of the connecting frame 6 enters the inner groove 17. The connecting frame 6 drives the inverted image reducing lens 19 to rotate and contact the inner ring 2. Then rotate the rotating ring 3. The rotating ring 3 drives the locking plate 4 to rotate. The locking plate 4 engages with the locking groove 18, thereby fixing the position of the connecting frame 6. Pass the connecting rod 12 through the slide 11. Then rotate the bolt 15. The bolt 15 limits and fixes the connecting rod 12, so that the fundus wide-angle lens 14 is at the bottom of the frame 1. The fundus wide-angle lens 14 does not make... When in use, the connecting rod 12 can be rotated, which drives the L-shaped plate 13 to rotate. The L-shaped plate 13 drives the fundus wide-angle lens 14 to rotate, and the fundus wide-angle lens 14 rotates away from the bottom of the frame 1. Then, the bolt 15 is rotated to limit and fix the connecting rod 12, which facilitates the transfer of the fundus wide-angle lens 14. When adjusting the distance between the frame 1 and the fundus wide-angle lens 14, the rotating wheel 9 is rotated, which drives the lead screw 7 to rotate. The lead screw 7 drives the slide 11 to move, and the slide 11 drives the connecting rod 12 to move. The connecting rod 12 drives the L-shaped plate 13 to move, and the L-shaped plate 13 drives the fundus wide-angle lens 14 to move.

[0029] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A non-contact fundus lens, comprising a frame (1), characterized in that: A connecting block (5) is fixedly provided on one side of the frame (1), a fixed shaft (16) is fixedly provided on one side of the connecting block (5), a connecting frame (6) is sleeved on the outside of the fixed shaft (16), a sliding rod (8) is fixedly provided at the bottom of the connecting frame (6), a fixed plate (10) is fixedly provided on one side of the sliding rod (8), a lead screw (7) is connected between the fixed plate (10) and the connecting frame (6) through a bearing, an inverted image reducing lens (19) is fixedly provided on one side of the connecting frame (6), a rotating wheel (9) is fixedly sleeved on the outside of the lead screw (7), a slide (11) is threaded on the outside of the lead screw (7), the sliding rod (8) passes through the slide (11) and is slidably connected to the slide (11), a connecting rod (12) is provided on one side of the slide (11), an L-shaped plate (13) is fixedly provided on one side of the connecting rod (12), and a fundus wide-angle lens (14) is fixedly provided on one side of the L-shaped plate (13).

2. The non-contact ophthalmoscope according to claim 1, characterized in that: The slide (11) is connected to a bolt (15) by a thread on one side, and one end of the bolt (15) is in contact with the connecting rod (12).

3. The non-contact ophthalmoscope according to claim 1, characterized in that: The bottom of the eyeglass frame (1) has an inner groove (17).

4. The non-contact ophthalmoscope according to claim 1, characterized in that: A slot (18) is provided on one side of the connecting frame (6).

5. The non-contact ophthalmoscope according to claim 4, characterized in that: The frame (1) has an inner ring (2) fixed at the bottom, and a rotating ring (3) is fitted around the inner ring (2). A retaining plate (4) is fixed on one side of the rotating ring (3). The inner ring (2) is in contact with the inverted image reducing mirror (19).

6. The non-contact ophthalmoscope according to claim 5, characterized in that: The card plate (4) is engaged with the card slot (18).

7. The non-contact ophthalmoscope according to claim 1, characterized in that: The frame (1) is provided with a chuck (20) on one side.

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