Corneal contact lens aging test equipment and test method

Abstract

The invention discloses corneal contact lens aging test equipment and a corneal contact lens aging test method, and belongs to the technical field of corneal contact lens experiments.The corneal contact lens aging test equipment comprises an experimental box body, and a placement table is arranged at the bottom in the experimental box body; an environment simulation unit for simulating the internal environment of the experiment box body and an adjusting unit for adjusting the position and angle of the environment simulation unit are arranged on the placement table. The environment simulation unit and the heating column are adopted to simulate the illumination intensity, the temperature, the humidity and the like in the experiment box body, the aging degree caused by single or multiple factors of the corneal contact lens can be experimented, the accuracy of the experiment result is improved, the bearing ball is arranged, artificial tears are conveyed through the pump body, and the experiment efficiency is improved. The bearing ball rotates under the action of the potential energy of the artificial tears, so that the corneal contact lens can be intermittently contacted with the artificial tears, and the aging experiment that the corneal contact lens is directly contacted with the environment under the wearing condition is simulated.

Description

Technical Field

[0001] The present invention relates to the technical field of corneal contact lens testing, in particular to a corneal contact lens aging testing device and a testing method. Background Art

[0002] Contact lenses, also known as contact lenses or contact glasses, are lenses worn on the cornea to correct vision or protect the eyes. Cosmetic contact lenses are contact lenses. They come in three types: rigid, semi-rigid, and soft, depending on the hardness or softness of the material. Contact lenses not only offer significant improvements in appearance and convenience for patients with refractive errors such as myopia, hyperopia, and astigmatism, but also offer a wider field of vision and more vivid vision. They are also effective in controlling the progression of myopia and astigmatism in adolescents and treating specific eye diseases.

[0003] For example, the Chinese utility model patent with the announcement number CN216622105U discloses an aging test device, which includes a box body, a cover plate and an ultraviolet lamp arranged in the box body. The box body is enclosed by plates to form an inner cavity, and at least one side of the inner cavity has an opening. The cover plate is rotatably set on the edge of the opening, and the cover plate matches the shape of the opening. The ultraviolet lamp is located at the top of the inner cavity and extends along the length direction of the inner cavity. At least one reflective lens is attached to the inner wall of the box corresponding to the two ends of the length direction of the inner cavity.

[0004] The above solution has the following shortcomings in actual use:

[0005] This solution uses reflective lenses to reflect more ultraviolet light onto the product surface, so that the surfaces of the products to be tested corresponding to the two ends of the inner cavity in the length direction are exposed to more ultraviolet light, thereby ensuring that all products in the inner cavity have sufficient ultraviolet light exposure. However, factors that affect the aging of corneal contact lenses in actual use include temperature, humidity, and the impact of direct contact between corneal contact lenses and the environment when worn. The above solution is relatively simple for the aging test of corneal contact lenses. Summary of the Invention

[0006] The present invention aims to overcome at least one defect (shortcoming) of the above-mentioned prior art and provide a corneal contact lens aging test device and test method for solving the problems raised in the above-mentioned background technology.

[0007] The technical solution adopted by the present invention is a corneal contact lens aging test device, comprising an experimental box, a placement table provided at the bottom of the experimental box, an environmental simulation unit for simulating the internal environment of the experimental box, and an adjustment unit for adjusting the position and angle of the environmental simulation unit;

[0008] The environmental simulation unit includes a liquid storage tank, which is divided into two liquid storage chambers by a partition. Two liquid outlet pipes respectively connected to the two liquid storage chambers are provided on one side of the liquid storage tank. The ends of the two liquid outlet pipes are connected to connecting pipes through a tee. A pump body is provided at the end of the connecting pipe. The water outlet of the pump body is connected to liquid outlet pipe 1 through a tee. A barrel body is provided at the end of liquid outlet pipe 1. The barrel body is provided with a rotatable carrying ball for carrying a corneal contact lens. A reflux pipe is provided between the top of one side of the barrel body and the liquid storage tank.

[0009] Preferably, a plurality of through grooves are provided on the upper surface of the placement table, and a plurality of heating columns are provided below the placement table.

[0010] Preferably, the liquid storage tank is provided with an experimental box for placing corneal contact lenses, the water outlet of the pump body is also connected to a second liquid outlet pipe through a tee, the liquid outlet end of the second liquid outlet pipe is provided with an atomizing nozzle, the atomizing nozzle is provided with a mounting bracket, the mounting bracket is provided with a fourth motor, the fourth motor is connected to the adjustment unit through a fixing bracket, the mounting bracket is provided with a blowing unit for blowing air to the surface of the corneal contact lens and a full-spectrum lamp for irradiating the surface of the corneal contact lens.

[0011] Preferably, the front side of the experimental box is rotatably connected to a box door via a hinge, and reflective panels are provided on the inner wall of the experimental box and the two box doors.

[0012] Preferably, one of the liquid storage chambers contains water for simulating the humidity in the experimental box, and the other liquid storage chamber contains artificial tears.

[0013] Preferably, the adjustment unit includes an arc-shaped track, and adjustment seats are provided at both ends of the arc-shaped track. The adjustment seats are rotatably connected to a fixed seat through an axis, and a movable seat is provided on the lower surface of the fixed seat. Two sliding grooves corresponding to the movable seat are provided on the upper surface of the placement table, and one of the movable seats is threadedly connected to a threaded screw, and one end of the threaded screw extends out of the experimental box and is provided with a motor.

[0014] Preferably, a motor three is provided on the side wall of one of the fixing seats, the output shaft of the motor three extends to the interior of the fixing seat and is provided with a worm two, a worm wheel is meshedly connected to the worm two, and the worm wheel is connected to the shaft body.

[0015] Preferably, a drive seat is slidably connected to the arc track, a worm 1 is provided in the drive seat, one end of the worm 1 extends out of the drive seat and is provided with a motor 2, and an arc rack corresponding to the worm 1 is provided on the arc track.

[0016] A test method for corneal contact lens aging test equipment, specifically comprising the following steps:

[0017] Open the box door and place two identical contact lenses in the experimental box and on the surface of the supporting ball, then close the box door;

[0018] Control the operation of the environmental simulation unit and heating column to simulate the temperature, humidity and light environment inside the experimental box;

[0019] The contact lenses in the test box are used for aging experiments on contact lenses in natural storage conditions, and the contact lenses on the carrier ball are used for aging experiments on contact lenses in worn conditions.

[0020] After the experiment, the staff used spectrometers, mechanical properties testers, microscopes and chemical analysis instruments to test the degree of aging of corneal contact lenses in the two conditions.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention simulates the light intensity, temperature, humidity, etc. inside the experimental box by adopting an environmental simulation unit and a heating column, thereby being able to conduct experiments on the degree of aging of corneal contact lenses caused by a single or multiple factors, thereby improving the accuracy of the experimental results; by setting a carrying ball and transporting artificial tears through a pump body, the carrying ball is rotated under the action of the potential energy of the artificial tears, which can make the corneal contact lens intermittently contact with the artificial tears, thereby simulating the aging experiment of the corneal contact lens in direct contact with the environment when worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of the entire invention.

[0023] Figure 2 It is a cross-sectional view of the overall structure of the present invention.

[0024] Figure 3 It is a schematic structural diagram of the interior of the experimental box of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the arc track of the present invention.

[0026] Figure 5 for Figure 4 The structural breakdown diagram at A in the middle.

[0027] Figure 6 for Figure 4 The structural breakdown diagram at point B in the middle.

[0028] Figure 7 Schematic diagram of the structure of the environmental simulation unit of the present invention.

[0029] Figure 8for Figure 7 side view of the structure.

[0030] 1. Experimental box; 2. Box door; 3. Placement table; 4. Through slot; 5. Heating column; 6. Adjustment unit; 601. Curved track; 602. Adjustment seat; 603. Axis; 604. Fixed seat; 605. Moving seat; 606. Screw; 607. Motor 1; 608. Slide; 609. Drive seat; 610. Worm 1; 611. Curved rack; 612. Motor 2; 613. Motor 3; 614. Worm 2; 615. Worm Wheel; 7. Environmental simulation unit; 701. Liquid storage tank; 702. Partition; 703. Experiment box; 704. Liquid outlet pipe; 705. Connecting pipe; 706. Pump body; 707. Liquid outlet pipe 1; 708. Barrel body; 709. Bearing ball; 710. Return pipe; 711. Liquid outlet pipe 2; 712. Atomizing nozzle; 713. Mounting bracket; 714. Motor 4; 715. Fixing bracket; 716. Blower unit; 717. Full-spectrum light; 8. Reflector. DETAILED DESCRIPTION

[0031] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting the present invention. To better illustrate the following embodiments, some components in the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will appreciate that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0032] The following will provide a clear and complete description of 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] See also Figure 1-8 , the present invention provides a technical solution:

[0034] A contact lens aging test device includes an experimental box 1, a placement table 3 is provided at the bottom of the experimental box 1, an environmental simulation unit 7 for simulating the internal environment of the experimental box 1 and an adjustment unit 6 for adjusting the position and angle of the environmental simulation unit 7 are provided on the placement table 3, a plurality of through grooves 4 are provided on the upper surface of the placement table 3, and a plurality of heating columns 5 are provided below the placement table 3. Under the action of the plurality of through grooves 4, the temperature in the experimental box 1 can quickly reach a preset value. By using the environmental simulation unit 7 and the heating columns 5 to simulate the light intensity, temperature, humidity, etc. inside the experimental box 1, it is possible to conduct experiments on the aging degree of the contact lens caused by a single or multiple factors, thereby improving the accuracy of the experimental results. The front side of the experimental box 1 is connected to a box door 2 by a hinge, and a reflector 8 is provided on the inner wall of the experimental box 1 and the two box doors 2.

[0035] like Figure 7 and Figure 8 As shown, the environmental simulation unit 7 includes a liquid storage tank 701, which is divided into two liquid storage chambers by a partition 702. One of the liquid storage chambers contains water for simulating the humidity in the experimental box 1, and the other liquid storage chamber contains artificial tears. Two liquid outlet pipes 704 are provided on one side of the liquid storage tank 701, which are respectively connected to the two liquid storage chambers. The ends of the two liquid outlet pipes 704 are connected to a connecting pipe 705 through a tee. The end of the connecting pipe 705 is provided with a pump body 706. The water outlet of the pump body 706 is connected to a liquid outlet pipe 1 707 through a tee. The end of the liquid outlet pipe 1 707 is provided with a barrel body 708. The barrel body 708 A rotatable carrying ball 709 is provided for carrying a corneal contact lens, and a reflux pipe 710 is provided between the top of one side of the barrel body 708 and the liquid storage tank 701, wherein the water outlet of the liquid outlet pipe 1 707 is opposite to the bottom of the carrying ball 709, so that when the artificial tears flowing out of the liquid outlet pipe 1 707 collides with the carrying ball 709, the carrying ball 709 is driven to rotate, thereby realizing intermittent contact between the corneal contact lens and the artificial tears. When the liquid level of the artificial tears in the barrel body 708 rises to the reflux pipe 710, the artificial tears can flow back to the liquid storage chamber again through the reflux pipe 710, thereby avoiding waste.

[0036] The liquid storage tank 701 is provided with an experimental box 703 for placing corneal contact lenses. The water outlet of the pump body 706 is also connected to the second liquid outlet pipe 711 through a tee. The liquid outlet end of the second liquid outlet pipe 711 is provided with an atomizing nozzle 712. The atomizing nozzle 712 is provided with a mounting bracket 713. The mounting bracket 713 is provided with a motor 4 714. The motor 4 714 is connected to the adjustment unit 6 through a fixing bracket 715. The mounting bracket 713 is provided with a blowing unit 716 for blowing air on the surface of the corneal contact lens and a full-spectrum lamp 717 for irradiating the surface of the corneal contact lens. Among them, the two liquid outlet pipes 704, the liquid outlet pipe 1 707 and the liquid outlet pipe 2 711 are all provided with solenoid valves. By controlling the opening and closing of the solenoid valves, the pump body 706 can achieve the purpose of adjusting the water and human body. The tear-forming liquid is transported separately, and the blowing unit 716 is set to make the air inside the experimental box 1 flow, thereby ensuring the uniformity of humidity and temperature inside the experimental box 1. At the same time, the blowing unit 716 can blow on the corneal contact lens placed on the supporting ball 709, which can more realistically simulate the aging of the corneal contact lens when worn. The full-spectrum lamp 717 can simulate the aging effect of light on the corneal contact lens. By setting the reflector 8, the light distribution inside the experimental box 1 can be made more uniform, so that the corneal contact lens can be fully exposed to light. The motor 4 714 drives the mounting bracket 713 to rotate, which can increase the spraying area of ​​the atomizing nozzle 712, the multi-angle blowing of the blowing unit 716 and the multi-angle illumination of the full-spectrum lamp 717.

[0037] It should be noted that the staff can conduct experiments on two contact lenses at the same time to improve experimental efficiency, and can also conduct experiments on a single contact lens. They can also simulate the aging effects of users using contact lenses day and night. Among them, day and night use includes wearing them during the day and storing them in the storage box at night.

[0038] like Figure 3-6 As shown, the adjustment unit 6 includes an arc-shaped track 601, and an adjustment seat 602 is provided at the end of the arc-shaped track 601. The adjustment seat 602 is rotatably connected to the fixed seat 604 through the shaft 603. The lower surface of the fixed seat 604 is provided with a movable seat 605. The upper surface of the placement table 3 is provided with two slide grooves 608 corresponding to the movable seat 605, one of which is threadedly connected to a threaded screw 606 on one of the movable seats 605. One end of the threaded screw 606 extends out of the experimental box 1 and is provided with a motor 1 607. When in use, the threaded screw 606 starts to rotate by controlling the operation of the motor 1 607. Under the action of the thread, the movable seat 605 drives the fixed seat 604, the adjustment seat 602 and the arc-shaped track 601 to move laterally, thereby adjusting the lateral position of the environmental simulation unit 7.

[0039] Furthermore, a motor three 613 is provided on the side wall of one of the fixed seats 604, the output shaft of the motor three 613 extends to the interior of the fixed seat 604 and is provided with a worm two 614, and the worm two 614 is meshedly connected with a worm wheel 615. Under the transmission of the worm two 614 and the worm wheel 615, the shaft 603 drives the adjustment seat 602 to rotate, and the arc track 601 can be flipped accordingly.

[0040] Furthermore, a driving seat 609 is slidably connected to the arc track 601, and a worm 1 610 is provided in the driving seat 609. One end of the worm 1 610 extends out of the driving seat 609 and is provided with a motor 2 612. An arc rack 611 corresponding to the worm 1 610 is provided on the arc track 601. By controlling the operation of the motor 2 612, the driving seat 609 can be moved along the arc track 601 under the transmission of the arc rack 611 and the worm 1 610. At the same time, in cooperation with the motor 3 613, the longitudinal and vertical positions of the environmental simulation unit 7 can be adjusted, so that the blowing unit 716 and the full-spectrum lamp 717 on the environmental simulation unit 7 can be used to blow and irradiate the corneal contact lens at different angles, thereby improving the authenticity of the environmental simulation.

[0041] A test method for corneal contact lens aging test equipment, specifically comprising the following steps:

[0042] Open the door 2 and place two identical contact lenses in the experimental box 703 and on the surface of the supporting ball 709, respectively, and close the door 2;

[0043] Control the operation of the environment simulation unit 7 and the heating column 5 to simulate the temperature, humidity and light environment inside the experimental box 1;

[0044] The contact lens in the experimental box 703 is used for aging experiments of the contact lens in a natural storage state, and the contact lens on the carrying ball 709 is used for aging experiments of the contact lens in a worn state.

[0045] After the experiment, the staff used spectrometers, mechanical properties testers, microscopes and chemical analysis instruments to test the degree of aging of corneal contact lenses in the two conditions.

[0046] The workflow of this embodiment is as follows: the staff opens the box door 2 and selects an appropriate number of corneal contact lenses according to the experimental needs. In this embodiment, the number of corneal contact lenses is two. The staff places the two corneal contact lenses in the experimental box 703 and on the surface of the supporting ball 709 respectively and closes the box door 2. The staff simulates the temperature, humidity and lighting environment inside the experimental box 1 by controlling the operation of the environmental simulation unit 7 and the heating column 5. After a period of time, the staff takes out the two corneal contact lenses and uses a spectrometer, a mechanical property tester, a microscope and a chemical analysis instrument to test the degree of aging of the corneal contact lenses in the two states.

[0047] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A contact lens aging test device, comprising a test box, characterized in that: A placement table is provided at the bottom of the experimental box, and an environment simulation unit for simulating the internal environment of the experimental box and an adjustment unit for adjusting the position and angle of the environment simulation unit are provided on the placement table; The environmental simulation unit includes a liquid storage tank, which is divided into two liquid storage chambers by a partition. Two liquid outlet pipes respectively connected to the two liquid storage chambers are provided on one side of the liquid storage tank. The ends of the two liquid outlet pipes are connected to connecting pipes through a tee. A pump body is provided at the end of the connecting pipe. The water outlet of the pump body is connected to liquid outlet pipe 1 through a tee. A barrel body is provided at the end of liquid outlet pipe 1. The barrel body is provided with a rotatable carrying ball for carrying a corneal contact lens. A reflux pipe is provided between the top of one side of the barrel body and the liquid storage tank.

2. A contact lens aging test device according to claim 1, characterized in that: A plurality of through grooves are provided on the upper surface of the placement platform, and a plurality of heating columns are provided below the placement platform.

3. The contact lens aging test equipment according to claim 1, characterized in that: The liquid storage tank is provided with an experimental box for placing corneal contact lenses. The water outlet of the pump body is also connected to a second liquid outlet pipe through a tee. The liquid outlet end of the second liquid outlet pipe is provided with an atomizing nozzle. The atomizing nozzle is provided with a mounting bracket. A fourth motor is provided on the mounting bracket. The fourth motor is connected to the adjustment unit through a fixing bracket. The mounting bracket is provided with a blowing unit for blowing air to the surface of the corneal contact lens and a full-spectrum lamp for irradiating the surface of the corneal contact lens.

4. A contact lens aging test device according to claim 3, characterized in that: The front side of the experimental box is rotatably connected with a box door through a hinge, and reflective plates are provided on the inner wall of the experimental box and the two box doors.

5. The contact lens aging test equipment according to claim 3, characterized in that: One of the liquid storage chambers contains water for simulating the humidity in the experimental box, and the other liquid storage chamber contains artificial tears.

6. The contact lens aging test equipment according to claim 1, characterized in that: The adjustment unit includes an arc-shaped track, and adjustment seats are provided at both ends of the arc-shaped track. The adjustment seats are rotatably connected to a fixed seat through an axis, and a movable seat is provided on the lower surface of the fixed seat. Two sliding grooves corresponding to the movable seat are provided on the upper surface of the placement table, and one of the movable seats is threadedly connected to a threaded screw, and one end of the threaded screw extends out of the experimental box and is provided with a motor.

7. The contact lens aging test equipment according to claim 6, characterized in that: A motor three is provided on the side wall of one of the fixing seats, the output shaft of the motor three extends to the interior of the fixing seat and is provided with a worm two, a worm wheel is meshedly connected to the worm two, and the worm wheel is connected to the shaft body.

8. The contact lens aging test equipment according to claim 6, characterized in that: A driving seat is slidably connected to the arc track, a worm is provided in the driving seat, one end of the worm extends out of the driving seat and is provided with a motor 2, and an arc rack corresponding to the worm is provided on the arc track.

9. A test method based on the contact lens aging test equipment according to any one of claims 1 to 8, characterized in that: The specific steps include: Open the box door and place two identical contact lenses in the experimental box and on the surface of the supporting ball, then close the box door; Control the operation of the environmental simulation unit and the heating column to simulate the temperature, humidity and light environment inside the experimental box; the contact lenses in the experimental box are used for aging experiments of contact lenses in natural storage conditions, and the contact lenses on the carrier ball are used for aging experiments of contact lenses in the worn state; After the experiment, the staff used spectrometers, mechanical properties testers, microscopes and chemical analysis instruments to test the degree of aging of corneal contact lenses in the two conditions.

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