Hard contact lens fitting device

Abstract

The utility model provides a hard contact lens fitting device which is used for checking whether a hard contact lens is matched or not through fluorescein and comprises colored test paper and a holding handle, and the holding handle is connected with the colored test paper; the coloring test paper is cylindrical, and one end, far away from the holding handle, of the coloring test paper extends along the axial direction of the holding handle to form a coloring part with a curved surface; the shape of the holding handle comprises a rod shape, the holding handle is connected with one end of the colored test paper, and a disc-shaped stopping part is formed by extending along the radial direction of the holding handle and is used for stopping fluorescein adsorbed by the colored test paper. The utility model provides a hard contact lens fitting device, which is helpful for improving the uniformity of fluorescein distribution, improving the accuracy of fitting results and reducing the possibility of pollution caused by fluorescein leakage.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ophthalmic medical devices, in particular to a hard contact lens fitting device. BACKGROUND

[0002] Hard contact lenses are usually used to correct high myopia, hyperopia, astigmatism and other visual problems, and have good visual correction effect and durability. Hard contact lenses can be customized with very steep base curves and ultra-high diopter according to the eye characteristics of individuals, so that the hard contact lenses can meet the actual use needs of individuals. However, hard contact lenses require fitters to have rich fitting experience, and also need to spend more fitting time to determine the parameters of the lenses.

[0003] In the prior art, fluorescein fitting is a fitting method for evaluating the adaptability of eyes and hard contact lenses. Fluorescein does not enter normal cells, has the characteristics of not developing color in the body, and being discharged out of the body through the tear duct with tear secretion and tear exchange. However, there are problems such as uneven distribution of fluorescein, which cannot accurately reflect the actual state of the cornea, and fluorescein leakage causing pollution.

[0004] Therefore, there is currently a need for a solution to at least one of the above problems. CONTENT OF THE INVENTION

[0005] In view of at least one of the defects in the prior art, the present application proposes a hard contact lens fitting device.

[0006] The technical solution adopted by the present application to solve at least one of the above technical problems is:

[0007] A hard contact lens fitting device for testing whether a hard contact lens is suitable by using fluorescein, comprising: a color test paper and a holding handle, the holding handle being connected to the color test paper;

[0008] The shape of the color test paper includes a cylindrical shape, and the end of the color test paper away from the holding handle extends in the axial direction of the holding handle to form a color part with a curved surface;

[0009] The shape of the holding handle includes a rod shape, and the end of the holding handle connected to the color test paper extends in the radial direction of the holding handle to form a disc-shaped stop part for stopping the fluorescein adsorbed by the color test paper.

[0010] In one specific embodiment, the side of the stop part facing the color test paper is recessed in the direction of the holding handle.

[0011] In one specific embodiment, the holding handle is hollow, and one or more gaps are formed in the end of the holding handle away from the color test paper, the extension direction of the gaps being the same or approximately the same as the axial direction of the holding handle.

[0012] At least two of the gaps are distributed along the circumferential direction of the holding handle to form at least two matched supporting portions, which can be bent relative to the holding handle to realize the switching of the hard contact lens fitting device between the handheld state and the supporting state.

[0013] In one specific embodiment, in the supporting state of the hard contact lens fitting device, the projection of the center of gravity on the supporting plane is located within the range formed by the supporting portions on the supporting plane.

[0014] In one specific embodiment, an outer cover is further included.

[0015] The outer cover is formed with a transparent portion, the outer cover matches the shape of the color test paper, and the inner wall of the outer cover is provided with one or more buckling portions distributed along the circumferential direction of the outer cover.

[0016] The stop portion is provided with a buckling groove at the end of the holding handle, and the buckling portion buckles the buckling groove after the outer cover is arranged on the holding handle.

[0017] In one specific embodiment, the end of the holding handle connected to the color test paper is provided with a connecting portion, and the inner diameter of the connecting portion gradually decreases towards the end close to the color test paper.

[0018] The end of the color test paper away from the coloring portion is provided with an annular protrusion, and the protrusion matches the connecting portion to realize the detachable connection of the color test paper and the holding handle.

[0019] In one specific embodiment, the surface of the color test paper is uniformly distributed with a plurality of concave points.

[0020] In one specific embodiment, the inner diameter of the color test paper decreases from the end connected to the holding handle to the end of the coloring portion.

[0021] In one specific embodiment, the holding handle is further provided with a plurality of hollow portions.

[0022] In one specific embodiment, the holding handle is further provided with a holding portion matching the shape of a finger.

[0023] Advantages:

[0024] The application provides a hard contact lens fitting device, which helps to improve the uniformity of fluorescein distribution, improve the accuracy of fitting results, and reduce the possibility of fluorescein leakage causing pollution.

[0025] Specifically, the colored test paper is provided with a curved coloring part, which helps the fluorescein to fully cover the surface of the eyeball during the coloring process, so that the fluorescein is uniformly distributed, and the accuracy of the hard contact lens fitting is improved. The disc-shaped stop part is formed in the radial direction of the holding handle, which can effectively prevent the fluorescein from dripping or leaking during the operation, reduce the risk of cross contamination, and protect the safety of the patient's eyes. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0027] Figure 1 The structure of the hard contact lens fitting device of the present embodiment is shown in the figure.

[0028] Figure 2 The structure of the hard contact lens fitting device of the present embodiment is shown in the figure.

[0029] Figure 3 The structure of the hard contact lens fitting device of the present embodiment is shown in the figure.

[0030] Figure 4 The support state of the hard contact lens fitting device of the present embodiment is shown in the figure.

[0031] Figure 5 The structure of the hard contact lens fitting device of the present embodiment is shown in the figure.

[0032] Figure 6 The structure of the hard contact lens fitting device of the present embodiment is shown in the figure.

[0033] Reference signs:

[0034] 1-colored test paper; 11-coloring part; 12-protrusion; 13-dimple; 2-holding handle; 21-stop part; 211-docking groove; 22-gap; 23-supporting part; 24-connecting part; 25-hollow part; 26-holding part; 3-outer cover; 31-docking part. DETAILED DESCRIPTION

[0035] Hereinafter, various embodiments of the disclosure will be described more fully. The disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit various embodiments of the disclosure to the specific embodiments disclosed herein, but the disclosure should be understood to encompass all adjustments, equivalents, and / or alternatives falling within the spirit and scope of various embodiments of the disclosure.

[0036] Hereinafter, the term "include" or "may include" used in various embodiments of the disclosure indicates the presence of the disclosed function, operation, or element, and does not limit the addition of one or more functions, operations, or elements. Also, as used in various embodiments of the disclosure, the terms "include", "have", and their conjugates merely intend to denote a specific characteristic, number, step, operation, element, component, or combination of the foregoing, and should not be understood as excluding the presence or possibility of addition of one or more other characteristics, numbers, steps, operations, elements, components, or combinations of the foregoing.

[0037] In various embodiments of the disclosure, the expression "or" or "at least one of A or / and B" includes any combination of the listed terms or all combinations thereof. For example, the expression "A or B" or "at least one of A or / and B" can include A, can include B, or can include both A and B.

[0038] The expressions (such as "first", "second", etc.) used in various embodiments of the disclosure can modify various constituent elements in various embodiments, but can not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the described elements. The above expressions are used only for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element can be referred to as a second element, and likewise, a second element can also be referred to as a first element without departing from the scope of various embodiments of the disclosure.

[0039] It should be noted that if a description connects one constituent element to another constituent element, the first constituent element can be directly connected to the second constituent element, and a third constituent element can be "connected" between the first constituent element and the second constituent element. Conversely, when one constituent element is "directly connected" to another constituent element, it can be understood that there is no third constituent element between the first constituent element and the second constituent element.

[0040] The term "user" used in various embodiments of the disclosure can indicate a person using an electronic device or a device (for example, an artificial intelligence electronic device) using an electronic device.

[0041] The terms used in the various embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the various embodiments of the present disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present disclosure belong. The terms (such as terms defined in a generally used dictionary) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of the present disclosure.

[0042] Embodiments

[0043] The embodiments of the present application provide a hard contact lens fitting device for checking whether the hard contact lens is fitted by using fluorescein, as shown in the drawings, comprising: a colored test paper 1 and a holding handle 2, the holding handle 2 being connected to the colored test paper 1. Figure 1

[0044] The shape of the colored test paper 1 includes a cylindrical shape, and the end of the colored test paper 1 away from the holding handle 2 extends in the axial direction of the holding handle 2 to form a colored part 11 with a curved surface.

[0045] Specifically, in some embodiments of the present application, the shape of the colored test paper 1 is a cylindrical shape, and the curved surface of the colored part 11 helps the fluorescein to cover the surface of the eyeball more uniformly during use, so that the fluorescein is effectively coated, thereby improving the uniformity of the coloring and improving the accuracy of the hard contact lens fitting result; it also helps to reduce the discomfort of the patient during the fitting process and optimize the fitting experience of the patient.

[0046] The shape of the holding handle 2 includes a rod shape, and the end of the holding handle 2 connected to the colored test paper 1 extends in the radial direction of the holding handle 2 to form a disc-shaped stop part 21 for stopping the fluorescein adsorbed by the colored test paper 1.

[0047] The design of the holding handle 2 helps the fitter to easily control and improves the stability and comfort of the operation, reducing errors caused by improper operation.

[0048] The stop part 21 can effectively prevent the fluorescein from dripping or leaking during the operation, reduce the risk of cross infection, and to some extent, protect the safety of the patient. At the same time, the stop part 21 can also prevent the fluorescein from staining the hands of the fitter, which also helps to avoid the pollution of the fluorescein to some extent.

[0049] More specifically, in some embodiments of the present application, the fluorescein is sodium fluorescein which presents orange-red color. Of course, the specific type of fluorescein is not limited, as long as it meets the use requirements.​

[0050] Further, as shown in Figure 5 With Figure 6 the stop portion 21 is recessed towards the direction in which the coloring test paper 1 faces the holding handle 2.

[0051] The shape feature of the recessed stop portion 21 can guide the flow of fluorescein, help to concentrate and collect excess fluorescein, thereby avoiding the accumulation of fluorescein at the edge, preventing loss or overflow, and to some extent, avoiding the contamination of fluorescein to the dispensing personnel, so as to effectively prevent the direct contact of fluorescein with the hands and reduce the risk of cross contamination.

[0052] Further, as shown in Figure 3 With Figure 4 the holding handle 2 is hollow, and one or more gaps 22 are formed at the end of the holding handle 2 away from the coloring test paper 1, the extension direction of the gap 22 is the same or approximately the same as the axial direction of the holding handle 2,

[0053] It can be understood that the hollow structure reduces the use of materials and can greatly reduce the overall weight compared to the solid design; lightweight design makes the rigid contact lens dispensing device easier to carry, and also reduces hand fatigue of the dispensing personnel during long-time operation, improving comfort and use experience; lightweight design also helps the dispensing personnel to operate the device more flexibly, increasing the accuracy of the coloring effect.

[0054] At least two gaps 22 are distributed around the circumferential direction of the holding handle 2 to form at least two matched support portions 23, which can be bent relative to the holding handle 2 to realize the switching of the rigid contact lens dispensing device between the handheld state and the support state.

[0055] The bending function of the support portion 23 allows the dispensing personnel to freely switch between the handheld state and the support state, improves the adaptability of the rigid contact lens dispensing device, and meets the needs of different use scenarios; for example, multiple colorings are needed, and the rigid contact lens dispensing device needs to be used and placed multiple times during the process of checking the configuration effect of the rigid contact lens; in the support state, the rigid contact lens dispensing device can be stably placed, reducing the hand fatigue of the user, which is particularly important during long-time operation; the support portion 23 can provide additional support, so that the rigid contact lens dispensing device will not easily fall or move during placement, thereby improving the safety and accuracy of the operation.

[0056] Further, in the support state of the rigid contact lens dispensing device, the projection of the center of gravity on the support plane is located within the range formed by all the support portions 23 on the support plane.

[0057] Specifically, in some embodiments of the present application, the support plane can be a table top;

[0058] The projection of the center of gravity of the hard contact lens fitting device on the support plane is located within the range formed by all the support portions 23 on the support plane, which enhances the stability of placement, and the center of gravity within the range of the support portions 23 makes the hard contact lens fitting device less likely to tip over, providing better stability and avoiding accidental sliding or tipping over during placement, thereby improving the safety of use of the hard contact lens fitting device.

[0059] Further, as shown in Figure 2 , Figure 4 and Figure 5 , the outer cover 3 is also included;

[0060] The outer cover 3 is formed with a transparent portion (not shown in the figure), and the outer cover 3 matches the shape of the colored test paper 1, as shown in Figure 6 , the inner wall of the outer cover 3 is provided with one or more buckling portions 31 distributed circumferentially along the outer cover 3;

[0061] Specifically, in some embodiments of the present application, the outer cover 3 can use transparent materials;

[0062] The outer cover 3 provides effective dustproof function, while the transparent portion still maintains visibility, enhancing the cleanliness of the hard contact lens fitting device while maintaining the visibility of the hard contact lens fitting device.

[0063] The end of the stop portion 21 towards the holding handle 2 is provided with a buckling groove 211, and the buckling portion 31 is buckled into the buckling groove 211 after being arranged on the holding handle 2 with the outer cover 3.

[0064] The outer cover 3 matches the shape of the colored test paper 1, so that it can effectively protect the colored test paper 1 after covering and is not easy to slide or shift, avoiding the influence of dust, dirt and other external factors on the colored test paper 1; the design of the buckling portion 31 and the buckling groove 211 provides firm connection and prevents the outer cover 3 from accidentally falling off, enhancing safety and stability.

[0065] Further, as shown in Figure 6 , the end of the holding handle 2 connected to the colored test paper 1 is provided with a connecting portion 24, and the inner diameter of the connecting portion 24 gradually decreases towards the end close to the colored test paper 1;

[0066] The end of the colored test paper 1 away from the coloring portion 11 is provided with an annular protrusion 12, which is adapted to the connecting portion 24 to realize the detachable connection of the colored test paper 1 and the holding handle 2.

[0067] The detachable connection design enables the fitting personnel to conveniently replace the coloring test paper 1, thereby improving the flexibility and use convenience of the hard contact lens fitting device; the gradually decreasing inner diameter of the connecting portion 24 can make the coloring test paper 1 more stable when being inserted, and to a certain extent, avoid loosening or falling off; the matching design of the annular protrusion 12 and the connecting portion 24 can effectively prevent the coloring test paper 1 from accidentally detaching during use, thereby increasing the safety of the operation.

[0068] Further, as shown in Figure 3 , the coloring test paper 1 is uniformly distributed with a plurality of concave points 13 on the surface.

[0069] The concave points 13 increase the roughness of the surface of the coloring test paper 1, which helps to improve the adsorption capacity of fluorescein, so that the fluorescein can be uniformly distributed on the coloring test paper 1. The uniform distribution of the concave points 13 also helps to improve the consistency of the fluorescein color effect at different positions of the coloring test paper 1, reduces the error caused by uneven coating, and thus improves the reliability of the fitting result. At the same time, the design of the concave points 13 also helps to reduce the formation of bubbles on the surface of the liquid, thereby avoiding interference with the test results; and helps to avoid pollution caused by the leakage of fluorescein.

[0070] Further, the inner diameter of the coloring test paper 1 gradually decreases from the end connected to the holding handle 2 to the end of the coloring portion 11.

[0071] The gradually decreasing inner diameter can make the coloring test paper 1 more secure when being inserted into the holding handle 2, thereby reducing the possibility of falling off due to loosening and optimizing the use of the coloring process. In addition, the fitting personnel can more easily position the coloring test paper 1 to the correct position of the holding handle 2 under the guidance of the change of the inner diameter of the holding handle 2 when being inserted, thereby simplifying the operation steps and improving the use experience. The gradually decreasing inner diameter can also effectively prevent the fluorescein from leaking along the connecting portion of the coloring test paper 1, thereby reducing the possible pollution risk in the fitting process.

[0072] Further, as shown in Figure 3 , the holding handle 2 is also provided with a plurality of hollow portions 25.

[0073] The hollow design of the holding handle 2 can effectively reduce the overall weight of the handle, making it more convenient for the fitting personnel to use and reducing fatigue; the hollow portions 25 can also increase air circulation, thereby improving the comfort of holding, especially when used for a long time, which can reduce the discomfort caused by sweating of the palm; the hollow design can also provide better friction, increase the stability of holding, prevent slipping, and improve the safety of the operation.

[0074] Further, as shown in Figure 2 , the holding handle 2 is also provided with a holding portion 26 matched with the shape of the fingers.

[0075] The holding part 26 in line with the shape of the fingers can better fit the shape of the hands of the fitting personnel, can effectively disperse the pressure of the hands, reduce hand fatigue, improve the comfort of use, and conform to the principle of ergonomics; the holding part 26 designed according to the shape of the fingers can also provide better gripping force, prevent slipping, and improve the safety of operation; the holding part 26 in line with the design of the fingers can make the fitting personnel more flexible when performing fine operations, and improve the accuracy of operation.

[0076] The embodiments of the present application have at least the following beneficial effects:

[0077] The hard contact lens fitting device provided by the embodiments of the present application can help to improve the uniformity of the distribution of fluorescein, improve the accuracy of the fitting result, and also can reduce the possibility of pollution caused by leakage of fluorescein;

[0078] Specifically, the colored test paper 1 is provided with a curved coloring part 11, which can help the fluorescein to fully cover the surface of the eyeball during the coloring process, so that the fluorescein is uniformly distributed, thereby improving the accuracy of the hard contact lens fitting, and the disc-shaped stop part 21 is formed along the radial direction of the holding handle 2, which can effectively prevent the fluorescein from dripping or leaking during the operation, reduce the risk of cross contamination, and protect the safety of the patient's eyes.

[0079] Those skilled in the art can understand that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the description of the implementation scenario, or can be changed to be located in one or more devices different from the implementation scenario. The modules of the above implementation scenario can be combined as one module, or can be further split into multiple sub-modules.

[0080] The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario.

[0081] The above disclosure is only a few specific implementation scenarios of the present application, but the present application is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A rigid contact lens fitting device, characterized in that, A device for testing the fit of rigid contact lenses using fluorescein includes: a colored test strip and a grip handle, wherein the grip handle is connected to the colored test strip; The colored test strip has a cylindrical shape, with one end of the colored test strip away from the handle extending along the axial direction of the handle to form a colored portion with a curved surface; The grip handle is rod-shaped, and one end of the grip handle is connected to the colored test paper. A disc-shaped stop portion extends along the radial direction of the grip handle to stop the fluorescent dye adsorbed by the colored test paper.

2. The rigid contact lens fitting device according to claim 1, characterized in that, The stop portion is recessed on the side facing the colored test paper in the direction of the grip handle.

3. The rigid contact lens fitting device according to claim 1, characterized in that, The grip handle is hollow, and one or more gaps are formed at the end of the grip handle away from the colored test paper. The extending direction of the gaps is the same as or approximately the same as the axial direction of the grip handle. At least two of the gaps are distributed around the circumferential direction of the grip handle to form at least two compatible support portions, which can be bent relative to the grip handle to enable the rigid contact lens fitting device to switch between a handheld state and a supported state.

4. The rigid contact lens fitting device according to claim 3, characterized in that, When the rigid contact lens fitting device is in a supported state, the projection of its center of gravity onto the support plane lies within the area formed by all the support parts on the support plane.

5. The rigid contact lens fitting device according to claim 1, characterized in that, It also includes an outer cover; The outer cover has a transparent portion, the outer cover is matched with the shape of the colored test paper, and the inner wall of the outer cover is provided with one or more fastening portions distributed along the circumference of the outer cover; The stop portion has a fastening groove at one end facing the grip handle. The fastening portion is used to fasten the fastening groove after the outer cover is placed on the grip handle.

6. The rigid contact lens fitting device according to claim 1, characterized in that, The end of the grip handle connected to the colored test paper is provided with a connecting part, and the inner diameter of the connecting part gradually decreases towards the end closer to the colored test paper. The colored test paper has an annular protrusion at one end away from the colored part. The protrusion is adapted to the connecting part to realize the detachable connection between the colored test paper and the grip handle.

7. The rigid contact lens fitting device according to claim 1, characterized in that, The surface of the colored test paper has multiple evenly distributed dimples.

8. A rigid contact lens fitting device according to claim 1 or 7, characterized in that, The inner diameter of the colored test paper tends to decrease from the end connected to the handle to the end of the colored part.

9. A rigid contact lens fitting device according to claim 1, characterized in that, The grip handle also has several hollowed-out sections.

10. A rigid contact lens fitting device according to claim 1, characterized in that, The grip handle is also provided with a grip portion that matches the shape of the fingers.

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