Cornea contact cap assembly for eye detection

Abstract

The invention relates to the technical field of eye detection, and discloses a cornea contact cap assembly for eye detection, the cornea contact cap assembly comprises a protection mechanism and a driving mechanism, the arranged protection mechanism can carry out risk protection on eyes of a patient in the eye detection process of the patient, the damage to the eyes of the patient due to movement is avoided, and the safety of the patient is improved. Meanwhile, the microscope is driven to perform the same movement according to the movement distance of the patient, the detection effect is prevented from being affected by excursion of the examination position, the arranged driving mechanism can prevent the cornea contact cap from performing high-strength compression on one vertex of an eyeball to the maximum extent when the eyes of the patient are examined, the detection end abutting against the eyes is concave, and the detection effect is improved. The cornea contact cap is attached to the eyeball, the abutting pressure of the eyeball is reduced, meanwhile, the eye state of the eyeball in the normal state can be observed more clearly, the adaptability of a patient is improved, meanwhile, the arranged driving mechanism can prevent a doctor from repeatedly smearing a new cornea contact cap, and the bacterial infection risk is reduced while the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of eye detection, in particular to a corneal contact cap assembly for eye detection. Background Art

[0002] Microscopes can magnify the structure of the eye several to dozens of times (for example, a slit lamp microscope usually magnifies 10 to 40 times), and can clearly show subtle lesions that are invisible to the naked eye, such as small scratches on the corneal surface, corneal ulcers, and corneal fungal infections. The examination method of the microscope close to the eye uses high-resolution imaging, dynamic observation and technology to become one of the "gold standards" for ophthalmic diagnosis. It can accurately identify early lesions, guide treatment plans and evaluate prognosis. Its safety and efficiency make it widely used in clinical screening and specialized diagnosis and treatment.

[0003] Therefore, based on the actual use of the existing eye detection, since the corneal contact cap needs to be used to approach the patient's eyes for examination, the movement of the patient's body and the movement of the eyeball will affect the doctor's judgment of the condition during the examination, especially when the doctor is concentrating on the microscope. At the same time, the detection end of the existing corneal contact cap is a flat arrangement. Since the eyeball is elliptical, using a flat surface to contact the eyeball will cause the eyeball to deform, especially the middle position will be subject to strong pressure, reducing the accuracy of the doctor's judgment of the condition. In addition, during the examination, the movement of the patient will cause further compression of the eyeball, which is extremely dangerous for some patients whose eyeballs already have high pressure. In addition, before the examination, a medical medium needs to be applied to the inside of the corneal contact cap and then installed on the microscope, which increases the risk of bacterial infection. For this reason, we propose a corneal contact cap assembly for eye detection. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a corneal contact cap assembly for eye detection, which has the advantages of low infection risk and solves a series of problems such as high bacterial infection risk.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a corneal contact cap assembly for eye detection, comprising:

[0006] A workbench, with an inspection device fixedly placed on the top of the workbench, the inspection device comprising a fixed frame placed on the top of the workbench, a microscope slidably connected to the top of the fixed frame, and a lens fixedly mounted on the detection end of the microscope;

[0007] The protection mechanism includes a lower jaw plate and a head plate connected to the top of the fixed frame with damping sliding, and a pressure sensor is fixedly installed on one side of the lower jaw plate and the head plate, and the detection of the two pressure sensors is fixedly connected to a fitting block;

[0008] The driving mechanism includes a card cover fixedly connected to one end of the lens, a corneal contact cap is adsorbed on one end of the card cover, a plurality of output grooves are opened inside the card cover, an output ring groove is opened inside the card cover, and the output ring grooves are connected to the plurality of output grooves, a reflux groove is opened inside the card cover, and the reflux groove is located at the top of the card cover.

[0009] Preferably, the protection mechanism also includes a sliding plate slidably connected to the inside of the fixed frame, the microscope is slidably installed on the top of the sliding plate, a protection motor is fixedly installed on one side of the fixed frame, the output of the protection motor is fixedly connected to a protection threaded rod, and the protection threaded rod is threadedly screwed to the inside of the sliding plate.

[0010] Preferably, a reflux ring groove is opened inside the card cover, and the reflux ring groove is connected to the reflux groove. The bottom of the card cover is fixedly connected with an output head and a reflux head, and the output head is connected to the output ring groove, and the reflux head is connected to the reflux ring groove.

[0011] Preferably, the driving mechanism also includes a protective shell fixedly connected to one side of the microscope, the bottom of the inner wall of the protective shell is fixedly connected to an extrusion tube, the bottom of the inner wall of the extrusion tube is rotatably connected to an extrusion threaded rod, the external thread of the extrusion threaded rod is screwed with an extrusion cap, the extrusion cap is slidably connected to the inside of the extrusion tube, the outside of the extrusion tube is wrapped with a temperature control wire, the bottom of the protective shell is fixedly installed with an extrusion motor, and the output end of the extrusion motor is fixedly connected to the bottom of the extrusion threaded rod.

[0012] Preferably, the bottom of the output head is connected to an output tube, the output tube passes through the protective shell and is connected to the top of the extrusion tube, the top of the extrusion tube is connected to a feeding tube, one end of the feeding tube extends to the outside of the protective shell, and a feeding valve is fixedly installed on the outside of the feeding tube.

[0013] Preferably, the bottom of the inner wall of the protective shell is also fixedly connected to a negative pressure tube, the bottom of the inner wall of the negative pressure tube is rotatably connected to a negative pressure threaded rod, the external thread of the negative pressure threaded rod is screwed with a negative pressure cap, the negative pressure cap is slidably connected to the inside of the negative pressure tube, and a negative pressure motor is fixedly installed on the bottom of the protective shell, and the output end of the negative pressure motor is fixedly connected to the bottom of the negative pressure threaded rod.

[0014] Preferably, the bottom of the reflux head is connected to a reflux pipe, and the reflux pipe passes through the protective shell and is connected to the top of the negative pressure pipe. An air pressure sensor is fixedly installed on the top of the negative pressure pipe, and the detection section of the air pressure sensor extends to the interior of the negative pressure pipe.

[0015] Preferably, the top of the negative pressure tube is connected to a discharge pipe, one end of the discharge pipe extends to the outside of the protective shell, and a discharge valve is fixedly installed on the outside of the discharge pipe.

[0016] Preferably, the bottoms of the inner walls of the extrusion tube and the negative pressure tube are fixedly connected to limit rods, and the extrusion cap and the negative pressure cap are slidably connected to the outside of the adjacent limit rods.

[0017] Compared with the prior art, the present invention provides a corneal contact cap assembly for eye detection, which has the following beneficial effects:

[0018] 1. The invention can protect the patient's eyes from risks during the eye examination by setting up a protective mechanism, avoiding damage to the patient's eyes due to movement. At the same time, it drives the microscope to move the same as the patient's movement distance, avoiding the deviation of the inspection position that affects the detection effect, and at the same time ensuring that the patient's eyes are not damaged secondary.

[0019] 2. The invention provides a driving mechanism that can minimize the high-intensity pressure of the corneal contact cap on one vertex of the eyeball when examining the patient's eyes, making the detection end that contacts the eye concave, thereby fitting the eyeball and reducing the contact pressure of the eyeball. At the same time, it can more clearly observe the eye state in a normal state, thereby improving the patient's adaptability. At the same time, the driving mechanism can also avoid the doctor from repeatedly applying a new corneal contact cap, thereby improving work efficiency and reducing the risk of bacterial infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0023] Figure 4 Schematic diagram of the three-dimensional structure of the driving mechanism of the present invention;

[0024] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part B;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the card cover part of the present invention;

[0026] Figure 7 Schematic diagram of the three-dimensional structure inside the card cover of the present invention;

[0027] Figure 8Schematic diagram of the three-dimensional structure inside the protective shell of the present invention;

[0028] Figure 9 It is a schematic diagram of the three-dimensional structure of the air pressure sensor part of the present invention.

[0029] In the figure: 1. Inspection equipment; 2. Workbench; 3. Microscope; 4. Protection mechanism; 5. Drive mechanism; 6. Sliding plate; 7. Lower jaw plate; 8. Head plate; 9. Laminating block; 10. Pressure sensor; 11. Protection motor; 12. Protection threaded rod; 13. Lens; 14. Card cover; 15. Output groove; 16. Reflow groove; 17. Output ring groove; 18. Reflow ring groove; 19. Output head; 20. Reflow head; 21. Output Outlet pipe; 22. Return pipe; 23. Protective shell; 24. Extrusion tube; 25. Negative pressure tube; 26. Negative pressure threaded rod; 27. Negative pressure cap; 28. Negative pressure motor; 29. ​​Air pressure sensor; 30. Temperature control wire; 31. Feeding tube; 32. Discharge tube; 33. Feeding valve; 34. Corneal contact cap; 35. Extrusion threaded rod; 36. Extrusion cap; 37. Extrusion motor; 38. Limit rod; 39. Discharge valve; 40. Fixing bracket. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] As introduced in the background art, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a corneal contact cap assembly for eye detection.

[0032] In a typical embodiment of the present application, Figure 1-9 As shown, a corneal contact cap assembly for eye detection includes:

[0033] A workbench 2, on top of which an inspection device 1 is fixedly placed. The inspection device 1 includes a fixing frame 40 placed on top of the workbench 2, a microscope 3 is slidably connected to the top of the fixing frame 40, and a lens 13 is fixedly mounted on the detection end of the microscope 3;

[0034] The protection mechanism 4 includes a lower jaw plate 7 and a head plate 8 connected to the top of the fixing frame 40 with damping sliding. A pressure sensor 10 is fixedly installed on one side of the lower jaw plate 7 and the head plate 8. The detection of the two pressure sensors 10 is fixedly connected to a fitting block 9;

[0035] The protection mechanism 4 also includes a sliding plate 6 that is slidably connected to the inside of the fixed frame 40, and the microscope 3 is slidably installed on the top of the sliding plate 6. A protection motor 11 is fixedly installed on one side of the fixed frame 40, and the output of the protection motor 11 is fixedly connected to a protection threaded rod 12, which is threadedly screwed to the inside of the sliding plate 6.

[0036] By setting up the above-mentioned structure, the patient's eyes can be protected from risks during the eye examination to avoid damage to the patient's eyes caused by movement. At the same time, the microscope 3 is driven to move the same according to the patient's movement distance to avoid the inspection position from being offset and affecting the detection effect. Specifically, when the patient has his eyes examined, the lower jaw is placed on the fitting block 9 on the top of the lower jaw plate 7, and the head is in contact with the fitting block 9 on the top of the head plate 8. At this time, the doctor can control the microscope 3 to slide on the top of the sliding plate 6 to detect the patient's eyes. When the patient moves, the pressure sensor 10 on the head plate 8 and the lower jaw plate 7 detects a change in the value and starts the protective motor 11. The output end of the protective motor 11 drives the protective threaded rod 12 to rotate, and the rotation of the protective threaded rod 12 drives the sliding plate 6 to move, and the movement of the sliding plate 6 drives the microscope 3 to move, thereby protecting the patient's eyes from secondary damage and improving the detection effect by moving the microscope 3 following the patient.

[0037] The drive mechanism 5 includes a card cover 14 fixedly connected to one end of the lens 13. A corneal contact cap 34 is attached to one end of the card cover 14. The card cover 14 has a plurality of output slots 15 formed therein. The card cover 14 has an output ring slot 17 formed therein. The output ring slots 17 are connected to the plurality of output slots 15. The card cover 14 has a reflux slot 16 formed therein. The reflux slot 16 is located at the top of the card cover 14.

[0038] A reflux annular groove 18 is provided inside the card cover 14, and the reflux annular groove 18 is connected to the reflux groove 16. An output head 19 and a reflux head 20 are fixedly connected to the bottom of the card cover 14, and the output head 19 is connected to the output annular groove 17, and the reflux head 20 is connected to the reflux annular groove 18.

[0039] The driving mechanism 5 also includes a protective shell 23 fixedly connected to one side of the microscope 3. The bottom of the inner wall of the protective shell 23 is fixedly connected to an extrusion tube 24. The bottom of the inner wall of the extrusion tube 24 is rotatably connected to an extrusion threaded rod 35. The external thread of the extrusion threaded rod 35 is screwed with an extrusion cap 36. The extrusion cap 36 is slidably connected to the inside of the extrusion tube 24. The outside of the extrusion tube 24 is wrapped with a temperature control wire 30. An extrusion motor 37 is fixedly installed at the bottom of the protective shell 23. The output end of the extrusion motor 37 is fixedly connected to the bottom of the extrusion threaded rod 35.

[0040] The bottom of the output head 19 is connected to an output pipe 21, which passes through the protective shell 23 and is connected to the top of the extrusion tube 24. The top of the extrusion tube 24 is connected to a feeding pipe 31. One end of the feeding pipe 31 extends to the outside of the protective shell 23. A feeding valve 33 is fixedly installed on the outside of the feeding pipe 31.

[0041] The bottom of the inner wall of the protective shell 23 is also fixedly connected to a negative pressure tube 25, and the bottom of the inner wall of the negative pressure tube 25 is rotatably connected to a negative pressure threaded rod 26. The external thread of the negative pressure threaded rod 26 is screwed with a negative pressure cap 27, and the negative pressure cap 27 is slidably connected to the inside of the negative pressure tube 25. A negative pressure motor 28 is fixedly installed at the bottom of the protective shell 23, and the output end of the negative pressure motor 28 is fixedly connected to the bottom of the negative pressure threaded rod 26;

[0042] The bottom of the return head 20 is connected to a return pipe 22, which passes through the protective shell 23 and is connected to the top of the negative pressure pipe 25. The top of the negative pressure pipe 25 is fixedly installed with an air pressure sensor 29, and the detection section of the air pressure sensor 29 extends into the interior of the negative pressure pipe 25.

[0043] The top of the negative pressure pipe 25 is connected to a discharge pipe 32 , one end of which extends to the outside of the protective shell 23 , and a discharge valve 39 is fixedly installed on the outside of the discharge pipe 32 ;

[0044] The bottom of the inner wall of the extrusion tube 24 and the negative pressure tube 25 are fixedly connected to the limit rod 38, and the extrusion cap 36 and the negative pressure cap 27 are slidably connected to the outside of the adjacent limit rod 38. The interior of the extrusion tube 24 is filled with medical medium.

[0045] Furthermore, in the above scheme, by means of the provided structure, it is possible to avoid the corneal contact cap 34 from exerting high-intensity pressure on one vertex of the eyeball to the greatest extent when examining the patient's eyes, thereby improving the doctor's examination effect and the patient's examination comfort. Specifically, when it is necessary to examine the patient's eyes, the newly opened corneal contact cap 34 is placed outside the card cover 14, and the squeezing motor 37 is started. The output end of the squeezing motor 37 drives the squeezing cap 36 to slide outside the adjacent limit rod 38, pressing the medical medium inside the squeezing tube 24 into the inside of the output tube 21, and then pressing it into the space between the lens 13 and the corneal contact cap 34 through the output head 19, the output ring groove 17 and the plurality of output grooves 15 in sequence, filling the gap between the lens 13 and the corneal contact cap 34, and at the same time starting the air pressure sensor 29 to detect the air pressure between the lens 13 and the corneal contact cap 34. When the air pressure between the lens 13 and the corneal contact cap 34 is high, the medical medium inside the squeezing tube 24 is pressed into the inside of the output tube 21, and then pressed into the space between the lens 13 and the corneal contact cap 34 through the output head 19, the output ring groove 17 and the plurality of output grooves 15, filling the gap between the lens 13 and the corneal contact cap 34. When the filling is about to be completed, the corneal contact cap 34 is prevented from falling off the outside of the card cover 14. Then, the negative pressure motor 28 is turned on. The output end of the negative pressure motor 28 drives the negative pressure threaded rod 26 to rotate. The rotation of the negative pressure threaded rod 26 drives the negative pressure cap 27 to slide outside the adjacent limit rod 38, generating negative pressure. The negative pressure is sequentially passed through the return pipe 22, the return head 20, the return ring groove 18 and the return groove 16, thereby adsorbing the corneal contact cap 34 to the outside of the card cover 14 and recovering excess medical medium. At this time, the squeezing motor 37 and the negative pressure motor 28 are turned off, and the patient can be examined. If the patient feels discomfort or high pressure in the eye, the negative pressure motor 28 is turned on again to pump some of the medical medium between the lens 13 and the corneal contact cap 34 into the negative pressure tube 25. At this time, due to the negative pressure, the detection end of the corneal contact cap 34 that contacts the eye becomes concave, thereby fitting the eyeball, reducing the contact pressure on the eyeball, and allowing for clearer observation of the eyeball's normal state.

[0046] It is worth mentioning that before examining the patient, opening the feeding valve 33 first and squeezing the medical medium into the extrusion tube 24 can avoid the doctor from repeatedly applying the new corneal contact cap 34, saving time and effort and improving work efficiency. When the used medical medium needs to be processed, opening the discharge valve 39 and starting the negative pressure motor 28 can process the medical medium used in the negative pressure tube 25. At the same time, the temperature of the medical medium can be adjusted by the set temperature control wire 30 to improve the patient's adaptability.

[0047] The working principle of the present invention is as follows: when the patient's eyes need to be examined, the patient places his lower jaw on the fitting block 9 on the top of the lower jaw plate 7, and at the same time, his head abuts against the fitting block 9 on the top of the head plate 8;

[0048] At this time, the newly opened corneal contact cap 34 is placed outside the card cover 14, and the squeezing motor 37 is started. The output end of the squeezing motor 37 drives the squeezing cap 36 to slide outside the adjacent limit rod 38, pressing the medical medium inside the squeezing tube 24 into the inside of the output tube 21, and then pressing it into the space between the lens 13 and the corneal contact cap 34 through the output head 19, the output ring groove 17 and the plurality of output grooves 15 in sequence, filling the gap between the lens 13 and the corneal contact cap 34. At the same time, the air pressure sensor 29 is started to detect the air pressure between the lens 13 and the corneal contact cap 34. When the air pressure between the lens 13 and the corneal contact cap 34 is high, At this time, it means that the filling is about to be completed, and at the same time, the corneal contact cap 34 is prevented from falling off the outside of the card cover 14. Then, the negative pressure motor 28 and the output end of the negative pressure motor 28 drive the negative pressure threaded rod 26 to rotate. The rotation of the negative pressure threaded rod 26 drives the negative pressure cap 27 to slide on the outside of the adjacent limit rod 38, generating negative pressure. The negative pressure is sequentially passed through the reflux pipe 22, the reflux head 20, the reflux ring groove 18 and the reflux groove 16, and the corneal contact cap 34 is adsorbed on the outside of the card cover 14, and the excess medical medium is recovered. At this time, the squeezing motor 37 and the negative pressure motor 28 are turned off, and the doctor can control the microscope 3 to slide on the top of the sliding plate 6 to examine the patient's eyes.

[0049] When the patient feels discomfort or high eye pressure, the negative pressure motor 28 is activated again to pump part of the medical medium between the lens 13 and the corneal contact cap 34 into the negative pressure tube 25. At this time, due to the negative pressure, the detection end of the corneal contact cap 34 that contacts the eye becomes concave, thereby fitting the eyeball, reducing the contact pressure on the eyeball and allowing for clearer observation of the eyeball's normal state.

[0050] When the patient moves, the pressure sensors 10 on the head plate 8 and the jaw plate 7 detect changes in the values ​​and start the protective motor 11. The output end of the protective motor 11 drives the protective threaded rod 12 to rotate, and the rotation of the protective threaded rod 12 drives the sliding plate 6 to move, and the movement of the sliding plate 6 drives the microscope 3 to move, thereby protecting the patient's eyes from secondary damage and improving the detection effect by moving the microscope 3 following the patient.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A corneal contact cap assembly for eye detection, characterized in that: include, A workbench (2), wherein an inspection device (1) is fixedly placed on the top of the workbench (2), and the inspection device (1) comprises a fixing frame (40) placed on the top of the workbench (2), a microscope (3) is slidably connected to the top of the fixing frame (40), and a lens (13) is fixedly mounted on the detection end of the microscope (3); A protection mechanism (4), the protection mechanism (4) comprising a lower jaw plate (7) and a head plate (8) connected to the top of a fixing frame (40) in a damping sliding manner, a pressure sensor (10) being fixedly mounted on one side of the lower jaw plate (7) and the head plate (8), and a fitting block (9) being fixedly connected to the detection of the two pressure sensors (10); A driving mechanism (5) is provided, wherein the driving mechanism (5) comprises a card cover (14) fixedly connected to one end of a lens (13), a corneal contact cap (34) being adsorbed on one end of the card cover (14), a plurality of output grooves (15) being provided inside the card cover (14), an output ring groove (17) being provided inside the card cover (14), the output ring grooves (17) being connected to the plurality of output grooves (15), a reflux groove (16) being provided inside the card cover (14), and the reflux groove (16) being located at the top of the card cover (14).

2. The corneal contact cap assembly for eye detection according to claim 1, characterized in that: The protection mechanism (4) further comprises a sliding plate (6) slidably connected to the interior of the fixing frame (40), the microscope (3) is slidably mounted on the top of the sliding plate (6), a protection motor (11) is fixedly mounted on one side of the fixing frame (40), the output of the protection motor (11) is fixedly connected to a protection threaded rod (12), and the protection threaded rod (12) is screwed into the interior of the sliding plate (6).

3. The corneal contact cap assembly for eye detection according to claim 1, characterized in that: A reflux annular groove (18) is provided inside the card cover (14), and the reflux annular groove (18) is communicated with the reflux groove (16). An output head (19) and a reflux head (20) are fixedly connected to the bottom of the card cover (14), and the output head (19) is communicated with the output annular groove (17), and the reflux head (20) is communicated with the reflux annular groove (18).

4. The corneal contact cap assembly for eye detection according to claim 3, characterized in that: The driving mechanism (5) further comprises a protective shell (23) fixedly connected to one side of the microscope (3); the bottom of the inner wall of the protective shell (23) is fixedly connected to an extrusion tube (24); the bottom of the inner wall of the extrusion tube (24) is rotatably connected to an extrusion threaded rod (35); the external thread of the extrusion threaded rod (35) is screwed to an extrusion cap (36); the extrusion cap (36) is slidably connected to the inside of the extrusion tube (24); the outside of the extrusion tube (24) is wound with a temperature control wire (30); an extrusion motor (37) is fixedly mounted on the bottom of the protective shell (23); the output end of the extrusion motor (37) is fixedly connected to the bottom of the extrusion threaded rod (35).

5. The corneal contact cap assembly for eye detection according to claim 4, characterized in that: The bottom of the output head (19) is connected to an output pipe (21), and the output pipe (21) passes through the protective shell (23) and is connected to the top of the extrusion tube (24). The top of the extrusion tube (24) is connected to a feeding pipe (31), one end of the feeding pipe (31) extends to the outside of the protective shell (23), and a feeding valve (33) is fixedly installed on the outside of the feeding pipe (31).

6. The corneal contact cap assembly for eye detection according to claim 5, characterized in that: The bottom of the inner wall of the protective shell (23) is also fixedly connected to a negative pressure tube (25), the bottom of the inner wall of the negative pressure tube (25) is rotatably connected to a negative pressure threaded rod (26), the external thread of the negative pressure threaded rod (26) is screwed with a negative pressure cap (27), and the negative pressure cap (27) is slidably connected to the inside of the negative pressure tube (25). A negative pressure motor (28) is fixedly installed at the bottom of the protective shell (23), and the output end of the negative pressure motor (28) is fixedly connected to the bottom of the negative pressure threaded rod (26).

7. The corneal contact cap assembly for eye detection according to claim 6, characterized in that: The bottom of the return head (20) is connected to a return pipe (22), and the return pipe (22) passes through the protective shell (23) and is connected to the top of the negative pressure pipe (25). An air pressure sensor (29) is fixedly installed on the top of the negative pressure pipe (25), and the detection section of the air pressure sensor (29) extends to the interior of the negative pressure pipe (25).

8. The corneal contact cap assembly for eye detection according to claim 7, characterized in that: The top of the negative pressure pipe (25) is connected to a discharge pipe (32), one end of which extends to the outside of the protective shell (23), and a discharge valve (39) is fixedly installed on the outside of the discharge pipe (32).

9. The corneal contact cap assembly for eye detection according to claim 8, characterized in that: The bottoms of the inner walls of the extrusion tube (24) and the negative pressure tube (25) are both fixedly connected to a limiting rod (38), and the extrusion cap (36) and the negative pressure cap (27) are both slidably connected to the outside of the adjacent limiting rod (38).

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