Early warning device for occurrence of diabetic retinopathy

Abstract

The invention discloses an early warning device for diabetic retinopathy, and relates to the technical field of retinopathy treatment.The early warning device comprises a base, a shell installed at the top of the base, a fixing rod fixedly connected to one end of the base, an installation rod and a detection shell, the installation rod is installed at the top end of the fixing rod, and the detection shell is installed at one end of the installation rod; the device is characterized in that a nuclear magnetic resonance mechanism is mounted in the shell. According to the early warning device for diabetic retinopathy occurrence, a patient sits on the upper surface of one end of the base, a doctor observes the lesion condition of the fundus of the patient through an observation mirror, some patients cannot directly observe the lesion, the patient is conveyed into the nuclear magnetic resonance mechanism through the conveying mechanism, and then the patient is warned; therefore, whether the eye of the patient is diseased or not is detected, the eye fundus lesions of the patient are treated in a classified mode, the detection time and detection cost of the patient with obvious eye fundus lesions are reduced, and meanwhile the treatment effect of the patient with unobvious eye fundus lesions is not delayed.

Description

Technical Field

[0001] The present invention relates to the technical field of retinopathy treatment, and in particular to an early warning device for the occurrence of diabetic retinopathy. Background Art

[0002] In recent years, the application of nuclear magnetic resonance technology in the detection of diabetic retinopathy has made significant progress. Traditional methods for detecting diabetic retinopathy mainly rely on fundus examination and fluorescein fundus photography, but these methods often cannot provide comprehensive retinal structural information. Nuclear magnetic resonance technology can non-invasively display the microstructural changes of the retina and its surrounding tissues through high-resolution imaging, providing a more accurate basis for diagnosis. Studies have shown that nuclear magnetic resonance technology can effectively identify tiny lesions and abnormal blood flow in the retina, providing new possibilities for early detection of diabetic retinopathy.

[0003] Magnetic resonance imaging equipment has potential in detecting retinal lesions, but it also faces some limitations in practical applications. General MRI equipment cannot directly distinguish between patients' fundus lesions. All lesions require detailed testing, which results in longer examination times for some patients. This not only increases patients' waiting time for medical treatment, but may also increase their treatment costs. Because MRI examinations are relatively complicated, medical institutions also invest heavily in the use and maintenance of equipment, which reduces the efficiency of medical resource utilization and cannot meet actual needs. Summary of the invention

[0004] The present invention discloses an early warning device for the occurrence of diabetic retinopathy, aiming to solve the technical problem that general nuclear magnetic resonance working equipment cannot directly distinguish the fundus lesions of patients, and all lesions need to be detected in detail, resulting in prolonged examination time for some patients, which not only increases the waiting time for patients to see a doctor, but also may increase their treatment costs. Since nuclear magnetic resonance examinations are relatively complicated, medical institutions also invest a lot in the use and maintenance of equipment, which reduces the efficiency of the use of medical resources.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A warning device for the occurrence of diabetic retinopathy, comprising a base, a shell installed on the top of the base, a fixing rod fixedly connected to one end of the base, a mounting rod and a detection shell, wherein the mounting rod is installed on the top of the fixing rod, and the detection shell is installed on one end of the mounting rod, characterized in that a nuclear magnetic resonance mechanism is installed inside the shell, the nuclear magnetic resonance mechanism is used to detect changes in water content of a patient's fundus, thereby indirectly analyzing whether a lesion occurs in the patient's fundus, the nuclear magnetic resonance mechanism comprises a liquid nitrogen shell fixedly connected to the inner wall of the shell, an electromagnetic coil fixedly connected to the inside of the liquid nitrogen shell and a pulse coil, the pulse coil is fixedly connected to the outer wall of the liquid nitrogen shell, and a fixing block is fixedly connected to the bottom of the liquid nitrogen shell;

[0007] An ophthalmoscope detection mechanism is installed inside the detection shell, and the ophthalmoscope detection mechanism is used to visually view the patient's fundus lesions. The ophthalmoscope detection mechanism includes a detection tube fixedly connected to the detection shell, a first convex lens, a second convex lens, a first reflector, an observation tube, an observation mirror, a second reflector, and a concave lens slidably connected to the detection tube. The first convex lens, the second convex lens, and the concave lens are sequentially distributed inside the detection tube, the first reflector and the second reflector are installed at a side of the concave lens at a 45-degree angle, the observation tube is arranged at a side of the first reflector, and the observation mirror is arranged at one end of the observation tube;

[0008] A conveying mechanism is installed on the upper surface of the base, and the conveying mechanism is used to slowly convey the patient into the nuclear magnetic resonance imaging device;

[0009] An isolation mechanism is installed on one side of the conveying mechanism, and the isolation mechanism is used to isolate the magnetic force to protect the patient.

[0010] The bottom of the concave lens is fixedly connected with an adjustment block, the bottom of the detection shell is rotatably connected with an adjustment threaded rod, one end of the adjustment threaded rod is fixedly connected with an adjustment knob, the adjustment block and the adjustment threaded rod are threadedly connected, and a sealing cover is provided between the adjustment block and the detection tube.

[0011] The other end of the detection shell is fixedly connected with a light shield, a light inlet is arranged on one side of the light shield, and a lighting lamp is arranged on the top of the light shield, the lighting lamp is used to increase the amount of light entering, and the patient's eyes are close to the light inlet, and the increased amount of light entering makes the image of the fundus clearer.

[0012] In a preferred embodiment, the conveying mechanism includes a track fixedly connected to the upper surface of the base, one end of the track is slidably connected to a slide plate, the upper surface of the slide plate is fixedly connected to a conveying plate, and the upper surface of the slide plate is provided with a plurality of buffer springs.

[0013] A trip plate is arranged on the top of the buffer spring, and sponges are arranged on the upper surfaces of the trip plate and the conveying plate, so that the sponges make the patient more comfortable when using.

[0014] The bottom of the conveying plate is fixedly connected with a moving block, the inside of the base is fixedly connected with a mounting column, the top of the mounting column is fixedly connected with a motor, one end of the motor output shaft is fixedly connected with a conveying threaded rod, and the moving block and the conveying threaded rod are threadedly connected.

[0015] In a preferred solution, the isolation mechanism includes safety plates respectively fixedly connected to both sides of the conveying plate, one side of the safety plate is fixedly connected to a baffle, and one side of the safety plate is rotatably connected to a rotating plate near one end of the baffle.

[0016] The connection between the rotating plate and the safety plate is at the same height as the baffle plate. A connecting rod is rotatably connected to one side of the trip plate. The connecting rod is rotatably connected to the rotating plate. A mounting block is fixedly connected to the upper surface of the base near the rotating plate.

[0017] One end of the mounting block is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a linkage block, and the other end of the rotating rod is fixedly connected to a first bevel gear. The upper surface of the base is rotatably connected to two isolation plates near the edge. The isolation plates are made of non-metallic material and are three centimeters thick. The isolation plates are used to isolate magnetic force.

[0018] A second bevel gear is disposed at the bottom of the isolation plate, a torsion spring is disposed at a position of the bottom of the isolation plate close to the second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0019] It can be seen from the above that the early warning device for the occurrence of diabetic retinopathy provided by the present invention has the following technical effects.

[0020] Firstly, the patient sits on the upper surface of one end of the base, close to the position of the detection shell. The fundus lesions of the patients are different. The fundus lesions of some patients can be directly observed. The doctor observes the fundus lesions of the patients through an observation mirror and determines how to treat the patients. The lesions of some patients are not serious and cannot be directly observed. They need to be detected by a nuclear magnetic resonance (NMR) mechanism. The water content of the patient's eyes can be analyzed to indirectly detect the fundus lesions of the patients. The patient is sent into the nuclear magnetic resonance (NMR) mechanism through a conveying mechanism to detect the water content of the patient's eyes, thereby detecting whether the patient's eyes have lesions. This helps to classify and treat the fundus lesions of patients, reduce the detection time and cost of patients with obvious fundus lesions, and at the same time not delay the treatment of patients with minor fundus lesions.

[0021] Secondly: when the patient passes through the detection shell to detect the fundus, the magnetic force of the nuclear magnetic resonance mechanism is isolated by two isolation plates to prevent the patient from being in a strong magnetic environment for a long time and causing an impact on the patient. When the patient needs to pass the nuclear magnetic resonance mechanism for detection, the patient lies on the trip board and squeezes the buffer spring at the bottom to lower the height of the trip board, thereby driving one end of the rotating plate to rotate downward to squeeze the linkage block, thereby driving the rotating rod and the first bevel gear to rotate, and driving the second bevel gear and the isolation plate to rotate, so that the patient can enter the nuclear magnetic resonance mechanism through the two isolation plates. After use, the patient leaves the trip board, and the torsion spring drives the isolation plate to rotate back to its original position, which protects the patient and automatically opens the isolation plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the shaft side structure proposed by the present invention.

[0023] Figure 2 This is a schematic diagram of the overall cross-sectional structure proposed by the present invention.

[0024] Figure 3 This is a schematic diagram of the complete cross-sectional structure proposed by the present invention.

[0025] Figure 4 This is a side view structural schematic diagram of the present invention.

[0026] Figure 5 It is a schematic diagram of the local cross-sectional structure proposed by the present invention.

[0027] Figure 6 The present invention provides a schematic structural diagram of a liquid nitrogen shell.

[0028] Figure 7 The present invention provides a structural schematic diagram of a rotating plate.

[0029] Figure 8 The present invention provides a structural schematic diagram of the linkage block.

[0030] In the figure: 1, base; 2, shell; 3, isolation plate; 4, trip plate; 5, mounting rod; 6, conveying plate; 7, fixing rod; 8, track; 9, fixing block; 10, slide plate; 11, buffer spring; 12, conveying threaded rod; 13, moving block; 14, mounting column; 15, motor; 16, detection shell; 17, light shield; 18, lighting lamp; 19, first convex lens; 20, detection tube; 21, second convex lens; 22, adjustment knob; 23. Adjustment block; 24. Adjustment threaded rod; 25. First reflector; 26. Observation tube; 27. Observation mirror; 28. Second reflector; 29. ​​Concave lens; 30. Electromagnetic coil; 31. Liquid nitrogen shell; 32. Pulse coil; 33. Mounting plate; 34. Baffle; 35. Rotating plate; 36. Connecting rod; 37. Linkage block; 38. Rotating rod; 39. Mounting block; 40. First bevel gear; 41. Torsion spring; 42. Second bevel gear. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] The present invention discloses an early warning device for the occurrence of diabetic retinopathy, which is mainly used in scenarios where general nuclear magnetic resonance equipment cannot directly distinguish the fundus lesions of patients, and all lesions need to be detected in detail, resulting in prolonged examination time for some patients. This not only increases the waiting time for patients to see a doctor, but may also increase their treatment costs. Since nuclear magnetic resonance examinations are relatively complicated, medical institutions also invest a lot in the use and maintenance of equipment, which reduces the efficiency of the use of medical resources.

[0033] Reference Figure 1 — Figure 8 , an early warning device for the occurrence of diabetic retinopathy, comprising a base 1, a shell 2 mounted on the top of the base 1, a fixing rod 7 fixedly connected to one end of the base 1, a mounting rod 5 and a detection shell 16, wherein the mounting rod 5 is mounted on the top of the fixing rod 7, and the detection shell 16 is mounted on one end of the mounting rod 5, characterized in that a nuclear magnetic resonance mechanism is mounted inside the shell 2, the nuclear magnetic resonance mechanism is used to detect changes in the water content of the patient's fundus, thereby indirectly analyzing whether the patient's fundus has lesions, the nuclear magnetic resonance mechanism comprises a liquid nitrogen shell 31 fixedly connected to the inner wall of the shell 2, an electromagnetic coil 30 fixedly connected to the inside of the liquid nitrogen shell 31 and a pulse coil 32, the pulse coil 32 is fixedly connected to the outer wall of the liquid nitrogen shell 31, and a fixing block 9 is fixedly connected to the bottom of the liquid nitrogen shell 31;

[0034] An ophthalmoscope detection mechanism is installed inside the detection shell 16. The ophthalmoscope detection mechanism is used to visually view the patient's fundus lesions. The ophthalmoscope detection mechanism includes a detection tube 20 fixedly connected to the detection shell 16, a first convex lens 19, a second convex lens 21, a first reflector 25, an observation tube 26, an observation mirror 27, a second reflector 28, and a concave lens 29 slidably connected to the detection tube 20. The first convex lens 19, the second convex lens 21, and the concave lens 29 are sequentially distributed inside the detection tube 20. The first reflector 25 and the second reflector 28 are installed at a side of the concave lens 29 at a 45-degree angle. The observation tube 26 is arranged on one side of the first reflector 25, and the observation mirror 27 is arranged at one end of the observation tube 26.

[0035] A conveying mechanism is installed on the upper surface of the base 1, and the conveying mechanism is used to slowly convey the patient into the nuclear magnetic resonance imaging device;

[0036] An isolation mechanism is installed on one side of the conveying mechanism, and the isolation mechanism is used to isolate the magnetic force to protect the patient.

[0037] An adjusting block 23 is fixedly connected to the bottom of the concave lens 29, an adjusting threaded rod 24 is rotatably connected to the bottom of the detection shell 16, an adjusting knob 22 is fixedly connected to one end of the adjusting threaded rod 24, the adjusting block 23 is threadedly connected to the adjusting threaded rod 24, and a sealing cover is provided between the adjusting block 23 and the detection tube 20.

[0038] The other end of the detection shell 16 is fixedly connected to a light shield 17, a light inlet is set on one side of the light shield 17, and a lighting lamp 18 is set on the top of the light shield 17. The lighting lamp 18 is used to increase the amount of light entering. The patient's eyes are close to the light inlet, and the increased amount of light entering makes the image of the fundus clearer.

[0039] In this embodiment, the patient sits on the upper surface of one end of the base 1, close to the detection shell 16. The fundus lesions of the patients are different. The fundus lesions of some patients can be directly observed. The patient puts his eyes close to the detection shell 16, and the image of the fundus is transmitted to the second convex lens 21 through the first convex lens 19. The light is transmitted to the concave lens 29 through the second convex lens 21. The concave lens 29 magnifies the image and transmits the image through the observation mirror 27 through the reflection of the first reflector 25 and the second reflector 28. The doctor observes the fundus lesions of the patient through the observation mirror 27 and determines how to treat the patient. For some patients, the lesions are not serious and cannot be observed directly. They need to be detected by a nuclear magnetic resonance device. The water content of the patient's eyes can be analyzed to indirectly detect the patient's fundus lesions. The patient is sent into the nuclear magnetic resonance device by a transportation mechanism. The electromagnetic coil 30 generates an electromagnetic field, and the pulse coil 32 generates an electromagnetic pulse. The change in the spin direction of water molecules and the radiation signal are used to detect the water content of the patient's eyes, thereby detecting whether the patient's eyes have lesions. This helps to classify and treat the patient's fundus lesions, reduce the detection time and cost of patients with obvious fundus lesions, and at the same time not delay the treatment of patients with minor fundus lesions.

[0040] Furthermore, by rotating the adjusting knob 22 and the adjusting threaded rod 24, the adjusting block 23 and the concave lens 29 are driven to move, and the distance between the concave lens 29 and the second convex lens 21 is adjusted, thereby adjusting the clarity of the image.

[0041] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In a preferred embodiment, the conveying mechanism includes a track 8 fixedly connected to the upper surface of the base 1, one end of the track 8 is slidably connected to a slide plate 10, the upper surface of the slide plate 10 is fixedly connected to the conveying plate 6, and the upper surface of the slide plate 10 is provided with a plurality of buffer springs 11.

[0042] A trip plate 4 is arranged on the top of the buffer spring 11, and sponges are arranged on the upper surfaces of the trip plate 4 and the conveying plate 6, so that the sponges make the patient more comfortable when using.

[0043] A moving block 13 is fixedly connected to the bottom of the conveying plate 6, a mounting column 14 is fixedly connected inside the base 1, a motor 15 is fixedly connected to the top of the mounting column 14, one end of the output shaft of the motor 15 is fixedly connected to the conveying threaded rod 12, and the moving block 13 and the conveying threaded rod 12 are threadedly connected.

[0044] In this embodiment, the patient with unobvious fundus lesions places his legs on the conveying plate 6 and lies on the traveling plate 4. By starting the motor 15 to drive the conveying threaded rod 12 to rotate, the moving block 13 and the conveying plate 6 are driven to move, and the patient is conveyed forward, which has the effect of automatically sending the patient to the magnetic resonance imaging device.

[0045] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8 In a preferred embodiment, the isolation mechanism includes a security plate 33 fixedly connected to both sides of the conveying plate 6, a baffle 34 is fixedly connected to one side of the security plate 33, and a rotating plate 35 is rotatably connected to one side of the security plate 33 near one end of the baffle 34.

[0046] The connection between the rotating plate 35 and the mounting plate 33 is at the same height as the baffle 34. A connecting rod 36 is rotatably connected to one side of the trip plate 4. The connecting rod 36 is rotatably connected to the rotating plate 35. A mounting block 39 is fixedly connected to the upper surface of the base 1 near the rotating plate 35.

[0047] One end of the mounting block 39 passes through and is rotatably connected to a rotating rod 38, one end of the rotating rod 38 is fixedly connected to a linkage block 37, and the other end of the rotating rod 38 is fixedly connected to a first bevel gear 40. Two isolation plates 3 are rotatably connected to the upper surface of the base 1 near the edge. The isolation plates 3 are made of non-metallic material and are three centimeters thick. The isolation plates 3 are used to isolate magnetic force.

[0048] A second bevel gear 42 is disposed at the bottom of the isolation plate 3 , and a torsion spring 41 is disposed at a position of the bottom of the isolation plate 3 close to the second bevel gear 42 . The second bevel gear 42 is meshed with the first bevel gear 40 .

[0049] In this embodiment, when the patient is passing through the detection shell 16 to detect the fundus, the magnetic force of the nuclear magnetic resonance mechanism is isolated by two isolation plates 3 to prevent the patient from being in a strong magnetic environment for a long time and causing an impact on the patient. When the patient needs to pass the nuclear magnetic resonance mechanism for detection, the patient lies on the trip board 4 and squeezes the buffer spring 11 at the bottom to lower the height of the trip board 4, thereby driving one end of the rotating plate 35 to rotate downward to squeeze the linkage block 37, thereby driving the rotating rod 38 and the first bevel gear 40 to rotate, and driving the second bevel gear 42 and the isolation plate 3 to rotate, so that the patient can enter the nuclear magnetic resonance mechanism through the two isolation plates 3. After use, the patient leaves the trip board 4, and the torsion spring 41 drives the isolation plate 3 to rotate back to its original position, thereby protecting the patient and automatically opening the isolation plate 3.

[0050] Working principle: When in use, the patient sits on the upper surface of one end of the base 1, close to the position of the detection shell 16. The fundus lesions of the patients are different. The fundus lesions of some patients can be directly observed. The patient puts his eyes close to the detection shell 16, and the image of the fundus is transmitted to the second convex lens 21 through the first convex lens 19. The light is transmitted to the concave lens 29 through the second convex lens 21. The concave lens 29 enlarges the image and transmits the image through the observation mirror 27 through the reflection of the first reflector 25 and the second reflector 28. The doctor observes the fundus lesions of the patient through the observation mirror 27 and judges whether the patient should be treated. How to treat? Some patients' lesions are not serious and cannot be directly observed. They need to be detected by nuclear magnetic resonance (NMR) institutions. The water content of the patient's eyes can be analyzed to indirectly detect the patient's fundus lesions. The patient is sent into the nuclear magnetic resonance institution through a conveying mechanism. The electromagnetic coil 30 generates an electromagnetic field, and the pulse coil 32 generates an electromagnetic pulse. The water content of the patient's eyes is detected by using the change in the spin direction of water molecules and the radiation signal, so as to detect whether the patient's eyes have lesions. This plays a role in classifying and treating the patient's fundus lesions, reducing the detection time and cost of patients with obvious fundus lesions, and at the same time not delaying the treatment of patients with minor fundus lesions. The effect of treatment is achieved by rotating the adjustment knob 22 and the adjustment threaded rod 24 to drive the adjustment block 23 and the concave lens 29 to move, and adjusting the distance between the concave lens 29 and the second convex lens 21 to adjust the clarity of the image. The fundus lesions are not obvious. The patient's legs are placed on the conveying plate 6, and the body lies on the trip plate 4. The conveying threaded rod 12 is driven to rotate by starting the motor 15, thereby driving the movement block 13 and the conveying plate 6 to move, and the patient is conveyed forward, which has the effect of automatically sending the patient to the nuclear magnetic resonance mechanism. During the process of the patient passing through the detection shell 16 to detect the fundus, the magnetic force of the nuclear magnetic resonance mechanism is isolated by two isolation plates 3 to prevent long-term Being in a strong magnetic environment has an impact on the patient. When the patient needs to be detected by the nuclear magnetic resonance device, the patient lies on the trip board 4 and squeezes the buffer spring 11 at the bottom to lower the height of the trip board 4, thereby driving one end of the rotating plate 35 to rotate downward to squeeze the linkage block 37, thereby driving the rotating rod 38 and the first bevel gear 40 to rotate, and driving the second bevel gear 42 and the isolation plate 3 to rotate, so that the patient can enter the nuclear magnetic resonance device through the two isolation plates 3. After use, the patient leaves the trip board 4, and the torsion spring 41 drives the isolation plate 3 to rotate back to its original position, which plays the effect of protecting the patient and automatically opening the isolation plate 3.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A warning device for the occurrence of diabetic retinopathy, comprising a base (1), a shell (2) mounted on the top of the base (1), a fixing rod (7) fixedly connected to one end of the base (1), a mounting rod (5) and a detection shell (16), wherein the mounting rod (5) is mounted on the top of the fixing rod (7), and the detection shell (16) is mounted on one end of the mounting rod (5), characterized in that: A nuclear magnetic resonance mechanism is installed inside the shell (2), and the nuclear magnetic resonance mechanism is used to detect changes in water content in the patient's fundus, thereby indirectly analyzing whether the patient's fundus has lesions, and the nuclear magnetic resonance mechanism comprises a liquid nitrogen shell (31) fixedly connected to the inner wall of the shell (2), an electromagnetic coil (30) and a pulse coil (32) fixedly connected to the inside of the liquid nitrogen shell (31), the pulse coil (32) fixedly connected to the outer wall of the liquid nitrogen shell (31), and a fixing block (9) fixedly connected to the bottom of the liquid nitrogen shell (31); An ophthalmoscope detection mechanism is installed inside the detection shell (16), and the ophthalmoscope detection mechanism is used to visually check the condition of the patient's ophthalmological fundus lesions. The ophthalmoscope detection mechanism comprises a detection tube (20) fixedly connected to the inside of the detection shell (16), a first convex lens (19), a second convex lens (21), a first reflector (25), an observation tube (26), an observation mirror (27), a second reflector (28), and a concave lens (29) slidably connected to the inside of the detection tube (20). The first convex lens (19), the second convex lens (21), and the concave lens (29) are sequentially distributed inside the detection tube (20), the first reflector (25) and the second reflector (28) are installed on one side of the concave lens (29) at a 45-degree angle, the observation tube (26) is arranged on one side of the first reflector (25), and the observation mirror (27) is arranged at one end of the observation tube (26).

2. The device for early warning of diabetic retinopathy according to claim 1, characterized in that: The bottom of the concave lens (29) is fixedly connected to an adjustment block (23); the bottom of the detection shell (16) is rotatably connected to an adjustment threaded rod (24); one end of the adjustment threaded rod (24) is fixedly connected to an adjustment knob (22); the adjustment block (23) and the adjustment threaded rod (24) are threadedly connected; and a sealing cover is provided between the adjustment block (23) and the detection tube (20).

3. The device for early warning of diabetic retinopathy according to claim 2, characterized in that: The other end of the detection shell (16) is fixedly connected to a light shield (17), a light inlet hole is provided on one side of the light shield (17), and a lighting lamp (18) is provided on the top of the light shield (17), the lighting lamp (18) is used to increase the amount of light entering, and the patient's eyes are close to the light inlet hole, so that the amount of light entering is increased to make the image of the fundus clearer.

4. The device for early warning of diabetic retinopathy according to claim 3, characterized in that: A conveying mechanism is installed on the upper surface of the base (1), and is used to slowly convey the patient into the nuclear magnetic resonance device. The conveying mechanism comprises a track (8) fixedly connected to the upper surface of the base (1), one end of the track (8) is slidably connected to a slide plate (10), the upper surface of the slide plate (10) is fixedly connected to a conveying plate (6), and the upper surface of the slide plate (10) is provided with a plurality of buffer springs (11).

5. The device for early warning of diabetic retinopathy according to claim 4, characterized in that: A trip plate (4) is arranged on the top of the buffer spring (11), and the upper surfaces of the trip plate (4) and the conveying plate (6) are both provided with sponges, which make the patients more comfortable when using the sponges.

6. The device for early warning of diabetic retinopathy according to claim 5, characterized in that: The bottom of the conveying plate (6) is fixedly connected to a moving block (13), the interior of the base (1) is fixedly connected to a mounting column (14), the top of the mounting column (14) is fixedly connected to a motor (15), one end of the output shaft of the motor (15) is fixedly connected to a conveying threaded rod (12), and the moving block (13) and the conveying threaded rod (12) are threadedly connected.

7. The device for early warning of diabetic retinopathy according to claim 6, characterized in that: An isolation mechanism is installed on one side of the conveying mechanism, and the isolation mechanism is used to isolate magnetic force to protect patients. The isolation mechanism comprises a safety plate (33) fixedly connected to both sides of the conveying plate (6), a baffle (34) is fixedly connected to one side of the safety plate (33), and a rotating plate (35) is rotatably connected to one end of the baffle (34) on one side of the safety plate (33).

8. The device for early warning of diabetic retinopathy according to claim 7, characterized in that: The connection point between the rotating plate (35) and the mounting plate (33) is at the same height as the baffle (34); one side of the trip plate (4) is rotatably connected to a connecting rod (36); the connecting rod (36) is rotatably connected to the rotating plate (35); and a mounting block (39) is fixedly connected to a position of the upper surface of the base (1) near the rotating plate (35).

9. The device for early warning of diabetic retinopathy according to claim 8, characterized in that: One end of the mounting block (39) is rotatably connected to a rotating rod (38), one end of the rotating rod (38) is fixedly connected to a linkage block (37), and the other end of the rotating rod (38) is fixedly connected to a first bevel gear (40). Two isolation plates (3) are rotatably connected to the upper surface of the base (1) near the edge. The isolation plates (3) are made of non-metallic material and have a thickness of three centimeters. The isolation plates (3) are used to isolate magnetic force.

10. The device for early warning of diabetic retinopathy according to claim 9, characterized in that: A second bevel gear (42) is arranged at the bottom of the isolation plate (3), a torsion spring (41) is arranged at a position of the bottom of the isolation plate (3) close to the second bevel gear (42), and the second bevel gear (42) is meshed with the first bevel gear (40).

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