A device for detecting the removal and insertion of a corneal reshaping lens for ophthalmic care

Abstract

The application provides a corneal molding lens wearing and taking detection device for ophthalmic care, and belongs to the technical field of corneal molding lens wearing and taking detection. The detection device comprises a suction cup and a detection assembly, the suction cup is connected with the detection assembly, the detection assembly comprises a sleeve, a tension spring and a movable rod, the movable rod is connected with the suction cup through a connecting assembly, and the sleeve is provided with an observation window and a corresponding scale. An auxiliary adsorption assembly is arranged in the movable rod and the suction cup, and is used for improving the stability of adsorbing the corneal molding lens during the detection of the tension. In the above scheme, the operator can directly read the scale to convert the lens pulling force, and when the lens is taken off, the tension spring drives the movable rod and the suction cup to reset, so that whether the lens is taken off can be quickly identified. At this time, the pressure in the sleeve increases, the exhaust hole of the one-way valve is automatically opened at this time, the movable rod in the sleeve is prevented from shaking to form a safety hazard, and the safety is improved.

Description

Technical Field

[0001] This invention relates to the field of orthokeratology lens insertion and removal detection technology, and in particular to an orthokeratology lens insertion and removal detection device for ophthalmic care. Background Technology

[0002] Orthokeratology lenses are rigid gas-permeable contact lenses worn overnight that temporarily correct vision by reshaping the anterior surface of the cornea. They are widely used in myopia control among teenagers. During daily use, wearers need to use auxiliary tools such as suction cups to remove and insert the lenses to reduce the risk of lens damage and improve ease of use.

[0003] Most existing orthokeratology lens insertion and removal tools only have an adsorption structure. Operators usually rely on experience to judge the amount of pulling force when removing the lens, lacking an effective means of detecting the force applied during the process. Insufficient adsorption force can easily cause the lens to fall off, while excessive adsorption force or excessive pulling may damage the lens or even affect its safety.

[0004] Therefore, it is necessary to provide a corneal reshaping lens insertion and removal detection device for ophthalmic care, which can intuitively detect the pulling force during lens removal and improve the adsorption stability during the lens removal process, thereby solving the problems of difficulty in quantifying the force and adsorption stability during the insertion and removal process in the existing technology. Summary of the Invention

[0005] This invention provides a corneal reshaping lens insertion / removal detection device for ophthalmic care, in order to solve the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] An ophthalmic care orthokeratology lens insertion / removal detection device includes a suction cup and a detection component. The suction cup is connected to the detection component, which includes a sleeve, a tension spring, and a movable rod. The movable rod is connected to the suction cup via a connecting component. The sleeve is provided with an observation window and corresponding scale.

[0008] An auxiliary adsorption component is disposed within the movable rod and the suction cup. The auxiliary adsorption component is used to improve the stability of adsorption of the orthokeratology lens during the process of detecting the pulling force.

[0009] Optionally, the detection assembly includes a sleeve located on one side of the suction cup, one end of the tension spring is fixedly installed inside the sleeve, the other end of the tension spring is fixedly connected to a movable rod, the movable rod is slidably installed inside the sleeve, a transparent acrylic plate is provided on the observation window, the acrylic plate is provided with a scale, an exhaust hole is provided on the sleeve, and a one-way valve is provided in the exhaust hole, the one-way valve opens when the positive pressure inside the sleeve increases.

[0010] Optionally, the connecting assembly includes a movable cavity formed within the movable rod, a connecting ball being movably disposed within the movable cavity, and a suction cup being fixedly mounted on the connecting ball.

[0011] Optionally, the suction cup is provided with a humidification component, the humidification component including a second cavity opened in the suction cup, the second cavity being filled with physiological saline, the suction cup having an overflow hole communicating with the second cavity, and the physiological saline in the second cavity flowing out along the overflow hole after the back of the suction cup is squeezed.

[0012] Optionally, the auxiliary adsorption component includes a first perforation formed in the movable rod, and a second perforation is formed on both the connecting ball and the suction cup, with the first perforation and the second perforation communicating through the movable cavity.

[0013] Optionally, a boss is fixedly installed inside the second perforation, a return spring is fixedly installed on the boss, and a cover is fixedly installed on the return spring to seal the second perforation.

[0014] Optionally, the suction cup has a first cavity that communicates with a second perforation, and the suction cup has a set of adsorption holes that communicate with the first cavity, the adsorption holes being arranged around the second perforation.

[0015] Optionally, the sleeve is provided with an alarm assembly, the alarm assembly including a mounting cylinder fixedly installed on the sleeve, a miniature audible and visual alarm fixedly installed inside the mounting cylinder, a positioning spring fixedly installed on the miniature audible and visual alarm, a sliding block fixedly installed on the positioning spring, the sliding block being slidably installed inside the mounting cylinder, and a protruding ring cooperating with the sliding block fixedly installed on the movable rod.

[0016] Optionally, the mounting cylinder is provided with an air inlet, and the air inlets are provided in pairs and mirror images of each other, and the air inlets are used for depressurization.

[0017] Optionally, a connecting tube is fixedly installed on the connecting ball, and an airbag is provided at the end of the connecting tube away from the connecting ball.

[0018] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0019] In the above scheme, when the suction force pulls the movable rod to slide outwards from the sleeve, it stretches the tension spring. The acrylic plate on the side wall of the sleeve is equipped with a scale, and the displacement of the movable rod can be visually calibrated through the observation window. Using Hooke's law, the spring deformation corresponds to the tension value, and the operator can directly read the scale to calculate the lens removal force. At the same time, when the lens is removed, the tension spring drives the movable rod and suction cup to reset, which can quickly identify whether the lens has been removed. At this time, the pressure inside the sleeve increases, and the exhaust port of the one-way valve will automatically open to prevent the tension spring from driving the movable rod to shake inside the sleeve and causing safety hazards, thus improving safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the sleeve of the present invention;

[0022] Figure 3 This is a schematic diagram of the alarm component of the present invention;

[0023] Figure 4 This is a schematic diagram illustrating the interaction between the movable rod and the tension spring of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged view of point A;

[0025] Figure 6 This is a schematic diagram of the suction cup structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the reset spring and the cover of the present invention.

[0027] [Figure Labels]

[0028] 1. Suction cup;

[0029] 2. Detection components; 21. Sleeve; 22. Movable rod; 23. Tension spring; 24. Acrylic plate; 25. Scale; 26. Vent hole;

[0030] 3. Connecting components; 31. Movable cavity; 32. Connecting ball;

[0031] 4. Auxiliary adsorption component; 41. First perforation; 42. Second perforation; 43. Boss; 44. Return spring; 45. Cover; 46. First cavity; 47. Adsorption hole; 48. Connecting tube; 49. Airbag;

[0032] 5. Wetting component; 51. Second cavity; 52. Overflow hole;

[0033] 6. Alarm assembly; 61. Raised ring; 62. Mounting cylinder; 63. Sliding block; 64. Miniature audible and visual alarm; 65. Air inlet; 66. Positioning spring. Detailed Implementation

[0034] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0035] like Figures 1 to 7 As shown, an embodiment of the present invention provides a corneal reshaping lens insertion / removal detection device for ophthalmic care, including a suction cup 1 and a detection component 2. The suction cup 1 is connected to the detection component 2. The detection component 2 includes a sleeve 21, a tension spring 23, and a movable rod 22. The movable rod 22 is connected to the suction cup 1 through a connecting component 3. The sleeve 21 is provided with an observation window and a corresponding scale 25.

[0036] An auxiliary adsorption component 4 is disposed within the movable rod 22 and the suction cup 1. The auxiliary adsorption component 4 is used to improve the stability of adsorption of the orthokeratology lens during the process of detecting the pulling force.

[0037] The operator holds the main body of the device and places the suction cup 1 against the outer surface of the orthokeratology lens. A slight manual press ensures the suction cup 1 fits snugly against the lens's outer contour, forming a sealed contact surface. Initial pressure is applied by hand to pre-adsorb and limit the suction cup 1. The operator then pulls the detection component 2 at a constant speed away from the lens. The pulling force is directly transmitted to the tension spring 23 and the movable rod 22. The tension spring 23 undergoes elastic deformation with the pulling stroke. The elastic reaction force generated by this deformation effectively replaces the actual desorption force required for lens removal, thus simulating the force conditions during clinical lens removal. This eliminates the need for the traditional, rudimentary method of manually estimating the lens removal force and avoids the high cost and power-required design of electronic force sensors. It allows for in-situ detection of the lens removal and insertion force without an external power source.

[0038] like Figure 1 and 2 As shown, the detection component 2 includes a sleeve 21 located on one side of the suction cup 1. One end of the tension spring 23 is fixedly installed inside the sleeve 21, and the other end of the tension spring 23 is fixedly connected to the movable rod 22. The movable rod 22 is slidably installed inside the sleeve 21. A transparent acrylic plate 24 is provided on the observation window, and a scale 25 is provided on the acrylic plate 24. An exhaust hole 26 is provided on the sleeve 21, and a one-way valve is provided inside the exhaust hole 26. The one-way valve opens when the air pressure inside the sleeve 21 increases.

[0039] When the suction force pulls the movable rod 22 to slide outwards from the sleeve 21, it stretches the tension spring 23. The acrylic plate 24 on the side wall of the sleeve 21 is equipped with a scale 25. The displacement of the movable rod 22 can be directly compared with the scale 25 through the observation window. Using Hooke's law, the spring deformation corresponds to the tension value. The operator can directly read the scale 25 to calculate the lens removal force. At the same time, when the lens is removed, the tension spring 23 drives the movable rod 22 and the suction cup 1 to reset, which can quickly identify whether the lens has been removed. At this time, the pressure inside the sleeve 21 increases, and the one-way valve in the vent 26 automatically opens to prevent the tension spring 23 from driving the movable rod 22 to shake inside the sleeve 21 and create a safety hazard, thus improving safety.

[0040] like Figure 4 As shown, the connecting assembly 3 includes a movable cavity 31 formed within the movable rod 22, and a connecting ball 32 is movably disposed within the movable cavity 31. The suction cup 1 is fixedly mounted on the connecting ball 32. Specifically, the connecting ball 32 is rotatably disposed within the movable cavity 31.

[0041] When the suction cup 1 is attached to an irregularly curved orthokeratology lens, the spherical curvature of the lens varies from person to person. The connecting ball 32 can rotate freely in all directions within the movable cavity 31, and can autonomously adjust the spatial tilt angle of the suction cup 1 according to the curvature of the orthokeratology lens surface, so that the suction end face of the suction cup 1 is fully attached to the curved surface of the lens, eliminating the problem of local suspension and air leakage. When the axial tension is generated during the traction test, the connecting ball 32 can redirect and buffer the non-perpendicular component of the force, and convert the multi-directional force into a unified tension along the axis of the movable rod 22 and transmit it to the spring, avoiding the lateral component of the force causing the spring to shift and deform laterally. This ensures that the spring deformation is completely determined by the desorption tension, and is suitable for orthokeratology lenses with different base curve specifications.

[0042] like Figures 4 to 6 As shown, the suction cup 1 is provided with a humidification component 5. The humidification component 5 includes a second cavity 51 opened in the suction cup 1. The second cavity 51 is provided with physiological saline. The suction cup 1 is provided with an overflow hole 52 communicating with the second cavity 51. When the back of the suction cup 1 is squeezed, the physiological saline in the second cavity 51 flows out along the overflow hole 52.

[0043] As soon as the suction cup 1 presses down to adhere to the orthokeratology lens, the back of the suction cup 1 is subjected to mechanical pressure, which squeezes the second cavity 51 inward. The pre-encapsulated sterile saline solution inside the cavity slowly seeps out through the overflow hole 52 under pressure. The seeping saline solution evenly fills the tiny gaps between the suction cup 1 and the lens contact surface, forming a water-sealed liquid film. The liquid film uses the surface tension of the liquid to seal the tiny air leakage gaps. At the same time, the saline solution simulates the environment of human tears, restoring the moist adsorption condition of the lens when it is worn on the eye. This eliminates the detection error caused by the abnormal friction coefficient between the suction cup 1 and the lens in the dry state. Unlike the cumbersome operation of manually applying liquid with an additional dropper, it achieves automatic lubrication at the same time as the lens.

[0044] like Figure 4 As shown, the auxiliary adsorption component 4 includes a first perforation 41 opened in the movable rod 22, and a second perforation 42 is opened on the connecting ball 32 and the suction cup 1. The first perforation 41 and the second perforation 42 are connected through the movable cavity 31.

[0045] When the movable rod 22 slides outward from the sleeve 21, the volume of the inner cavity of the sleeve 21 increases, forming a negative pressure. The negative pressure is introduced into the second perforation 42 through the first perforation 41 inside the movable rod 22, the cavity of the movable chamber 31, and the internal channel of the connecting ball 32. The negative pressure airflow continues to act on the inner cavity of the suction cup 1 along the through channel. The entire through channel is arranged along the central axis of the tension force. The negative pressure force is concentrated in the adsorption center area of ​​the suction cup 1, forming a double-layer adsorption system with the negative pressure of the outer suction cup 1. The main negative pressure is generated by the expansion of the sleeve 21 and is directionally transported through the through pipeline. Unlike the single-layer structure of the suction cup 1 adsorbing by negative pressure alone, the auxiliary adsorption component 4 relies on the negative pressure source of the sleeve 21 to synchronously supply adsorption negative pressure. During the dynamic process of the spring pulling the lens to detach, it continuously supplements the adsorption force, counteracts the peeling tendency of the suction cup 1 caused by the detachment tension, and achieves auxiliary adsorption by detecting its own negative pressure.

[0046] like Figure 6 and 7 As shown, a boss 43 is fixedly installed inside the second perforation 42, a return spring 44 is fixedly installed on the boss 43, and a cover 45 is fixedly installed on the return spring 44. The cover 45 is used to seal the second perforation 42.

[0047] When there is no negative pressure input, the reset spring 44 pushes the cover 45 against the end face of the second perforation 42 with its own pre-tightening elastic force. The cover 45 completely seals the second perforation 42 to achieve a seal and prevent ambient air from flowing back into the suction cup 1 cavity and damaging the pre-sealed environment. When the negative pressure of the sleeve 21 is conducted to the inside of the second perforation 42 along the pipeline, the negative pressure suction force overcomes the pre-tightening tension of the reset spring 44 and pulls the cover 45 downward. The cover 45 is separated from the sealing surface, and the second perforation 42 is automatically opened, and the negative pressure smoothly enters the cavity of the suction cup 1. After the negative pressure inside the sleeve 21 disappears, the reset spring 44 rebounds and pushes the cover 45 to reset and seal, cutting off the negative pressure passage and preventing the suction cup 1 from having residual negative pressure that continues to attract the lens and prevents it from being removed smoothly.

[0048] Meanwhile, when the tension spring 23 drives the movable rod 22 to quickly reset, the reset spring 44 and the cover 45 cooperate to prevent instantaneous gas from entering the second perforation 42 and causing the lens to fall off.

[0049] like Figures 4 to 6 As shown, the suction cup 1 has a first cavity 46 inside, which is connected to the second perforation 42. The suction cup 1 has a set of adsorption holes 47 connected to the first cavity 46, which are arranged around the second perforation 42.

[0050] After the second perforation 42 is opened, the negative pressure flows into the first cavity 46. The negative pressure inside the cavity is evenly distributed to multiple sets of adsorption holes 47 arranged around it. The multiple adsorption holes 47 are arranged in a ring around the central through hole. The negative pressure is evenly released from the center of the suction cup 1 to the surrounding area, forming a ring-shaped distributed negative pressure adsorption area on the adsorption surface of the suction cup 1. The ring-shaped negative pressure area covers the entire contact surface between the suction cup 1 and the lens. Compared with single-point central adsorption, the distributed negative pressure can evenly distribute the desorption pull force. The probability of excessive force at local points and peeling leakage is greatly reduced. During the desorption detection process, all adsorption points are simultaneously stressed, and the uniformity of negative pressure distribution further optimizes the adsorption reliability.

[0051] like Figure 2 and Figure 3 As shown, an alarm component 6 is provided on the sleeve 21. The alarm component 6 includes a mounting cylinder 62 fixedly installed on the sleeve 21. A miniature audible and visual alarm 64 is fixedly installed inside the mounting cylinder 62. A positioning spring 66 is fixedly installed on the miniature audible and visual alarm 64. A sliding block 63 is fixedly installed on the positioning spring 66. The sliding block 63 is slidably connected inside the mounting cylinder 62. A protruding ring 61 that cooperates with the sliding block 63 is fixedly installed on the movable rod 22.

[0052] As the movable rod 22 is pulled, it extends outward, and the outer convex ring 61 of the rod moves axially in sync. When the pulling force reaches the critical force for the ultimate removal of the orthokeratology lens, the convex ring 61 slides and presses against the sliding block 63 inside the mounting cylinder 62. The sliding block 63 compresses the positioning spring 66 and moves towards the alarm. The sliding block 63 touches the trigger contact of the miniature audible and visual alarm 64, and the alarm is activated instantly with an audible and visual reminder. The audible and visual signals provide real-time prompts to the operator that the current pulling force has reached the lens's ultimate removal load, and to stop further pulling in time to avoid the lens breaking due to excessive pulling force.

[0053] like Figure 3 As shown, the mounting cylinder 62 has an air inlet 65, and there is a pair of air inlets 65 arranged in a mirror image. The air inlets 65 are used for pressure relief.

[0054] If the lens needs to be quickly depressurized and removed after the alarm is triggered, outside air enters the mounting cylinder 62 through a pair of air inlets 65 on the mounting cylinder 62 to complete the depressurization, reduce the additional suction force, and make it easier to release the lens and remove it, thereby improving safety.

[0055] like Figure 6 As shown, a connecting tube 48 is fixedly installed on the connecting ball 32, and an airbag 49 is provided at the end of the connecting tube 48 away from the connecting ball 32.

[0056] When the lens is put on, the movable rod 22 moves the lens to fit the eye, and the air bladder 49 is squeezed. The gas in the air bladder 49 enters the second perforation 42 along the connecting tube 48, thus facilitating the wearing of the lens.

[0057] The working process of the orthokeratology lens insertion / removal detection device for ophthalmic care provided by this invention is as follows:

[0058] The operator holds the main body of the device and places the suction cup 1 against the outer surface of the orthokeratology lens. A slight manual press ensures the suction cup 1 fits snugly against the lens's outer contour, forming a sealed contact surface. Initial pressure is applied by hand to pre-adsorb and limit the suction cup 1. The operator then pulls the detection component 2 at a constant speed away from the lens. The pulling force is directly transmitted to the tension spring 23 and the movable rod 22. The tension spring 23 undergoes elastic deformation with the pulling stroke. The elastic reaction force generated by this deformation effectively replaces the actual desorption force required for lens removal, thus simulating the force conditions during clinical lens removal. This eliminates the need for the traditional, rudimentary method of manually estimating the lens removal force and avoids the high cost and power-required design of electronic force sensors. It allows for in-situ detection of the lens removal and insertion force without an external power source.

[0059] When pulled by hand, the pulling force is transmitted to the movable rod 22 through the suction cup 1 and the connecting component 3. When the movable rod 22 slides to the outside of the sleeve 21, it stretches the tension spring 23. The acrylic plate 24 on the side wall of the sleeve 21 is equipped with a scale 25. The displacement of the movable rod 22 can be directly compared with the scale 25 through the observation window. Using Hooke's law, the spring deformation corresponds to the tension value. The operator can directly read the scale 25 to calculate the lens removal pulling force. At the same time, when the lens is removed, the tension spring 23 drives the movable rod 22 and the suction cup 1 to reset, which can quickly identify whether the lens has been removed. At this time, the pressure inside the sleeve 21 increases, and the exhaust port 26 of the one-way valve will automatically open to prevent the tension spring 23 from driving the movable rod 22 to shake inside the sleeve 21 and create a safety hazard, thus improving safety.

[0060] When the suction cup 1 is attached to an irregularly curved orthokeratology lens, the spherical curvature of the lens varies from person to person. The connecting ball 32 can rotate freely in all directions within the movable cavity 31, and can autonomously adjust the spatial tilt angle of the suction cup 1 according to the curvature of the orthokeratology lens surface, so that the suction end face of the suction cup 1 is fully attached to the curved surface of the lens, eliminating the problem of local suspension and air leakage. When the axial tension is generated during the traction test, the connecting ball 32 can redirect and buffer the non-perpendicular component of the force, and convert the multi-directional force into a unified tension along the axis of the movable rod 22 and transmit it to the spring, avoiding the lateral component of the force causing the spring to shift and deform laterally. This ensures that the spring deformation is completely determined by the desorption tension, and is suitable for orthokeratology lenses with different base curve specifications.

[0061] As soon as the suction cup 1 presses down to adhere to the orthokeratology lens, the back of the suction cup 1 is subjected to mechanical pressure, which squeezes the second cavity 51 inward. The pre-encapsulated sterile saline solution inside the cavity slowly seeps out through the overflow hole 52 under pressure. The seeping saline solution evenly fills the tiny gaps between the suction cup 1 and the lens contact surface, forming a water-sealed liquid film. The liquid film uses the surface tension of the liquid to seal the tiny air leakage gaps. At the same time, the saline solution simulates the environment of human tears, restoring the moist adsorption condition of the lens when it is worn on the eye. This eliminates the detection error caused by the abnormal friction coefficient between the suction cup 1 and the lens in the dry state. Unlike the cumbersome operation of manually applying liquid with an additional dropper, it achieves automatic lubrication at the same time as the lens.

[0062] After a negative pressure is formed inside the sleeve 21, the negative pressure is introduced into the second perforation 42 through the first perforation 41 inside the movable rod 22, the cavity of the movable chamber 31, and the internal channel of the connecting ball 32. The negative pressure airflow continues to act on the internal cavity of the suction cup 1 along the through channel. The entire through channel is arranged along the central axis of the tension force. The negative pressure force is concentrated in the adsorption center area of ​​the suction cup 1, forming a double-layer adsorption system with the negative pressure of the outer suction cup 1. The main negative pressure is generated by the expansion of the sleeve 21 and is directionally transported through the through pipeline. Unlike the single-layer structure of the suction cup 1 adsorbing by negative pressure alone, the auxiliary adsorption component 4 relies on the negative pressure source of the sleeve 21 to synchronously supply the adsorption negative pressure. During the dynamic process of the spring pulling the lens to detach, it continuously supplements the adsorption force to counteract the peeling tendency of the suction cup 1 caused by the desorption tension. It uses the detection of its own negative pressure to achieve auxiliary adsorption.

[0063] When there is no negative pressure input, the reset spring 44 pushes the cover 45 against the end face of the second perforation 42 with its own pre-tightening elastic force. The cover 45 completely seals the second perforation 42 to achieve a seal and prevent ambient air from flowing back into the suction cup 1 cavity and damaging the pre-sealed environment. When the negative pressure of the sleeve 21 is conducted to the inside of the second perforation 42 along the pipeline, the negative pressure suction force overcomes the pre-tightening tension of the reset spring 44 and pulls the cover 45 downward. The cover 45 is separated from the sealing surface, and the second perforation 42 is automatically opened, and the negative pressure smoothly enters the cavity of the suction cup 1. After the negative pressure inside the sleeve 21 disappears, the reset spring 44 rebounds and pushes the cover 45 to reset and seal, cutting off the negative pressure passage and preventing the suction cup 1 from having residual negative pressure that continues to attract the lens and prevents it from being removed smoothly.

[0064] Meanwhile, when the tension spring 23 drives the movable rod 22 to quickly reset, the reset spring 44, in conjunction with the baffle, can prevent instantaneous gas from entering the second perforation 42 and causing the lens to fall off.

[0065] After the second perforation 42 is opened, the negative pressure flows into the first cavity 46. The negative pressure inside the cavity is evenly distributed to multiple sets of adsorption holes 47 arranged around it. The multiple adsorption holes 47 are arranged in a ring around the central through hole. The negative pressure is evenly released from the center of the suction cup 1 to the surrounding area, forming a ring-shaped distributed negative pressure adsorption area on the adsorption surface of the suction cup 1. The ring-shaped negative pressure area covers the entire contact surface between the suction cup 1 and the lens. Compared with single-point central adsorption, the distributed negative pressure can evenly distribute the desorption pull force. The probability of excessive force at local points and peeling leakage is greatly reduced. During the desorption detection process, all adsorption points are simultaneously stressed, and the uniformity of negative pressure distribution further optimizes the adsorption reliability.

[0066] As the movable rod 22 is pulled, it extends outward, and the outer convex ring 61 of the rod moves axially in sync. When the pulling force reaches the critical force for the ultimate removal of the orthokeratology lens, the convex ring 61 slides and presses against the sliding block 63 inside the mounting cylinder 62. The sliding block 63 compresses the positioning spring 66 and moves towards the alarm. The sliding block 63 touches the trigger contact of the miniature audible and visual alarm 64, and the alarm is activated instantly with an audible and visual reminder. The audible and visual signals provide real-time prompts to the operator that the current pulling force has reached the lens's ultimate removal load, and to stop further pulling in time to avoid the lens breaking due to excessive pulling force.

[0067] If it is necessary to quickly depressurize and remove the lens after the alarm is triggered, outside air enters the mounting cylinder 62 through a pair of air inlets 65 on the mounting cylinder 62, completing the depressurization, reducing the additional suction force, making it easier to release the lens and thus improving safety.

[0068] When the lens is put on, the movable rod 22 moves the lens to fit the eye, and the air bladder 49 is squeezed. The gas in the air bladder 49 enters the second perforation 42 along the connecting tube 48, thus facilitating the wearing of the lens.

[0069] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for detecting the insertion and removal of orthokeratology lenses for ophthalmic care, characterized in that, It includes a suction cup and a detection component. The suction cup is connected to the detection component. The detection component includes a sleeve, a tension spring, and a movable rod. The suction cup is connected to the movable rod through a connecting component. The sleeve is provided with an observation window and corresponding scale. An auxiliary adsorption component is disposed within the movable rod and the suction cup. The auxiliary adsorption component is used to improve the stability of adsorption of the orthokeratology lens during the process of detecting the pulling force.

2. The orthokeratology lens insertion / removal detection device for ophthalmic care according to claim 1, characterized in that, The detection assembly includes a sleeve located on one side of the suction cup. One end of the tension spring is fixedly installed inside the sleeve, and the other end of the tension spring is fixedly connected to a movable rod. The movable rod is slidably installed inside the sleeve. A transparent acrylic plate is provided on the observation window, and the acrylic plate is provided with a scale. An exhaust hole is opened on the sleeve, and a one-way valve is provided inside the exhaust hole. The one-way valve opens when the positive pressure inside the sleeve increases.

3. The orthokeratology lens insertion / removal detection device for ophthalmic care according to claim 2, characterized in that, The connecting assembly includes a movable cavity formed inside the movable rod, a connecting ball being movably disposed inside the movable cavity, and a suction cup being fixedly mounted on the connecting ball.

4. The orthokeratology lens insertion / removal detection device for ophthalmic care according to claim 3, characterized in that, The suction cup is provided with a humidification component, which includes a second cavity opened inside the suction cup. The second cavity is filled with physiological saline. The suction cup is provided with an overflow hole communicating with the second cavity. When the back of the suction cup is squeezed, the physiological saline in the second cavity flows out along the overflow hole.

5. The orthokeratology lens insertion / removal detection device for ophthalmic care according to claim 4, characterized in that, The auxiliary adsorption component includes a first perforation inside the movable rod, and a second perforation is provided on both the connecting ball and the suction cup. The first perforation and the second perforation are connected through the movable cavity.

6. The orthokeratology lens insertion / removal detection device for ophthalmic care according to claim 5, characterized in that, A boss is fixedly installed inside the second perforation, a return spring is fixedly installed on the boss, and a cover is fixedly installed on the return spring. The cover is used to seal the second perforation.

7. The orthokeratology lens insertion / removal detection device for ophthalmic care according to claim 6, characterized in that, The suction cup has a first cavity that communicates with a second perforation. The suction cup has a set of adsorption holes that communicate with the first cavity and are arranged around the second perforation.

8. The orthokeratology lens insertion / removal detection device for ophthalmic care according to claim 7, characterized in that, An alarm assembly is provided on the sleeve. The alarm assembly includes a mounting cylinder fixedly installed on the sleeve. A miniature audible and visual alarm is fixedly installed inside the mounting cylinder. A positioning spring is fixedly installed on the miniature audible and visual alarm. A sliding block is fixedly installed on the positioning spring. The sliding block is slidably installed inside the mounting cylinder. A convex ring that cooperates with the sliding block is fixedly installed on the movable rod.

9. The orthokeratology lens insertion / removal detection device for ophthalmic care according to claim 8, characterized in that, The mounting cylinder has an air inlet hole, which is provided in pairs and mirrored, and is used for depressurization.

10. The orthokeratology lens insertion / removal detection device for ophthalmic care according to claim 9, characterized in that, A connecting tube is fixedly installed on the connecting ball, and an airbag is provided at the end of the connecting tube away from the connecting ball.

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