Ophthalmic training device

Abstract

The utility model relates to medical instrument technical field especially disclose an ophthalmic training appearance, including the shell body, the shell body one side is shaped with two eye sockets, the position inside the shell body inside the eye socket is installed with two adjustable spectacle lens fixing mechanism, the shell body inside one side is fixed with the drive mechanism that drives one adjustable spectacle lens fixing mechanism rotates, and the synchronous rotation is realized through the transmission mechanism of adjustable length between two adjustable spectacle lens fixing mechanism, the shell body inside one side is fixed with program PCB board, and the control knob that has electric connection with control drive mechanism normal and reverse rotation is installed on program PCB board. Advantageous effects lie in: through drive mechanism drive driving gear rotation, utilize driving gear same one spectacle lens fixing frame on two glasses frame occurs relative rotation, utilize with two adjustable spectacle lens fixing mechanism transmission connection transmission mechanism can guarantee two adjustable spectacle lens fixing mechanism synchronous rotation, can realize to the training of eye, simple operation, high degree of automation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an ophthalmic training device. Background Technology

[0002] In modern society, with the increasing frequency of computer use and mobile phone use, the degree of myopia is getting worse and the number of people with myopia is increasing. Therefore, preventing myopia or correcting vision has become particularly important.

[0003] Existing eye training devices typically consist of two sets of lenses. The first set of lenses is usually fixed, while the second set needs to be flipped or rotated to overlap or separate from the first set. This allows users to adjust their vision by viewing objects through different lenses, thereby regulating their eyes to prevent myopia or correct vision.

[0004] Existing eye position training devices have fixed lenses, which makes the pupillary distance unadjustable. Since everyone's pupillary distance has slight differences, they cannot be adapted to the needs of different users, and the prism flipping / rotation cannot be automated. Utility Model Content

[0005] The present invention provides an ophthalmic training device to solve the above-mentioned problems.

[0006] The technical solution of this utility model is implemented as follows:

[0007] An ophthalmic training device includes a housing with two orbital openings formed on one side. Two adjustable lens fixing mechanisms are installed inside the housing at positions corresponding to the orbital openings. The distance between the two adjustable lens fixing mechanisms is horizontally adjustable. A drive mechanism for rotating one of the adjustable lens fixing mechanisms is fixed inside the housing. The two adjustable lens fixing mechanisms rotate synchronously via an adjustable-length transmission mechanism. A program PCB board is fixed inside the housing, and a control knob for controlling the forward and reverse rotation of the drive mechanism is electrically connected to the program PCB board. Each adjustable lens fixing mechanism includes an inner fixing seat. Both the upper and lower ends are formed with limiting grooves. The inner wall of the outer shell is formed with a support column that is installed in conjunction with the limiting groove. The support column is horizontally slidably installed in the limiting groove. A protective cover is installed on one side of the inner fixing seat. A lens fixing frame is rotatably installed between the inner fixing seat and the protective cover. The lens fixing frame consists of two nested frames. Each frame has a transmission gear ring on its outer wall that drives the frame to rotate. The drive mechanism is fixed in one of the protective covers. The power output end of the drive mechanism is connected to a drive gear. The drive gear meshes synchronously with the two transmission gear rings on one of the lens fixing frames, driving the two coaxially mounted frames to rotate in opposite phases.

[0008] Furthermore, the upper end of the outer shell is provided with a strap fixing seat for mounting the head fixing strap.

[0009] Furthermore, the transmission mechanism includes two nested sleeves of freely adjustable length, each sleeve having a gear formed at both ends that meshes synchronously with two transmission gear rings on the lens holder.

[0010] Furthermore, a sliding block is formed at the upper or lower end of the inner fixing seat, and the two sliding blocks on the two inner fixing seats slide and engage together.

[0011] Furthermore, an angled disc is formed on the outer wall of the inner fixing seat on the side away from the protective cover.

[0012] Furthermore, an interpupillary distance scale is formed on the outer wall of the outer shell at the position corresponding to the eye socket opening.

[0013] Furthermore, an external lens holder that is detachably connected to the outer wall of the outer casing and snaps into the orbital opening is provided, and the external lens holder has at least one lens slot formed on it.

[0014] Furthermore, it also includes a rear shell that contacts the eyes and a head strap for easy wearing on the head, with a flexible pad fixed to the part of the rear shell that contacts the face.

[0015] The beneficial effects of this utility model by adopting the above technical solution are as follows: the drive mechanism drives the active gear to rotate, and the two frames on the same lens holder rotate relative to each other by the active gear. The transmission mechanism connected to the two adjustable lens fixing mechanisms can ensure that the two adjustable lens fixing mechanisms rotate synchronously, which can realize eye training. The operation is simple and highly automated. The distance between the two adjustable lens fixing mechanisms can be freely adjusted. Only one can be adjusted or both can be adjusted, which is convenient for people with different pupillary distances. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an explosion attempt of this utility model;

[0018] Figure 2 This is the first perspective view of the present invention;

[0019] Figure 3This is the second perspective view of the present invention;

[0020] Figure 4 This is a schematic diagram of the lens holder structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal fixing seat structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the outer shell structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the built-in lens holder structure of this utility model.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Outer shell; 11. Pupillary distance scale; 12. Strap fixing seat; 13. Support column; 2. Adjustable lens fixing mechanism; 21. Lens fixing frame; 22. Transmission gear ring; 23. Drive gear; 24. Inner fixing seat; 25. Protective cover; 26. Angle plate; 27. Sliding block; 28. Limiting slide groove; 3. Program PCB board; 4. Control knob; 5. Drive mechanism; 6. Transmission mechanism; 7. External lens holder; 71. Lens slot. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-6 As shown, an ophthalmic training device includes a housing 1 with two orbital holes formed on one side. Two adjustable lens fixing mechanisms 2 are installed inside the housing 1 at positions corresponding to the orbital holes. The distance between the two adjustable lens fixing mechanisms 2 is horizontally adjustable. A drive mechanism 5 is fixed inside the housing 1 to drive one of the adjustable lens fixing mechanisms 2 to rotate. The drive mechanism 5 includes a forward / reverse motor and a reducer. The two adjustable lens fixing mechanisms 2 rotate synchronously through a transmission mechanism 6 with adjustable length. A program PCB board 3 is fixed inside the housing 1. A control knob 4 for controlling the forward and reverse rotation of the drive mechanism 5 is electrically connected to the program PCB board 3. A through hole is provided on the housing 1 at the position corresponding to the control knob 4, allowing the control knob 4 to be exposed for easy operation by the wearer. By rotating the control knob 4 left or right, the forward / reverse motor can be controlled to rotate in both directions, thereby driving the adjustable lens fixing mechanism 2 to rotate inward (BI) or outward (BO).

[0028] The adjustable lens fixing mechanism 2 includes an inner fixing seat 24, with limiting grooves 28 formed at both the upper and lower ends of the inner fixing seat 24. A support column 13 is formed on the inner wall of the outer shell 1 to cooperate with the limiting grooves 28. The support column 13 is horizontally slidably installed in the limiting grooves 28. A protective cover 25 is installed on one side of the inner fixing seat 24. A lens fixing frame 21 is rotatably installed between the inner fixing seat 24 and the protective cover 25. The lens fixing frame 21 consists of two nested frames, each frame containing a lens. A drive frame is provided on the outer wall of each frame. The rotating transmission gear ring 22 and the drive mechanism 5 are fixed inside one of the protective covers 25. The power output end of the drive mechanism 5 is connected to the drive gear 23. The drive gear 23 meshes synchronously with the two transmission gear rings 22 on one of the lens holders 21, which drives the two coaxially mounted frames to rotate in opposite directions. When the two frames rotate relative to each other, the content observed by the wearer will change, thereby achieving eye exercise and specifically improving problems such as insufficient / excessive convergence and insufficient / excessive divergence, or conducting special training such as progressive diffusion and convergence sensitivity.

[0029] In this embodiment, the upper end of the outer shell 1 is provided with a strap fixing seat 12 for installing a head fixing strap, and also includes a rear shell that contacts the eyes and a head fixing strap for easy wearing on the head. The head fixing strap can be installed at the strap fixing seat 12. A flexible pad is fixed to the part of the rear shell that contacts the face to improve the comfort when wearing it. The rear shell is mainly used to cover the internal electronic equipment of the instrument, providing protection and improving the aesthetics of the device. Therefore, it is not described in detail in this application. Any structure that can perform the corresponding function is acceptable. A power module for power supply can be installed between the outer shell 1 and the rear shell. The power module can be a dry cell battery or a rechargeable battery. When a rechargeable battery is used, a charging tail plug is fixed on the side wall of the outer shell 1 for easy charging.

[0030] In this embodiment, the transmission mechanism 6 includes two nested sleeves with freely adjustable lengths. The mating surfaces of the inner and outer sleeves are non-circular, meaning that the two sleeves can move axially relative to each other but cannot rotate relative to each other. Each end of the sleeve is formed with a gear that meshes synchronously with two transmission gear rings 22 on the lens holder 21. The two gears are locked on the side walls of the housings of the two adjustable lens holders 2, so that they always mesh with the transmission gear rings 22. When the lateral distance between the two adjustable lens holders 2 changes, the mating position of the two sleeves changes accordingly to adjust the overall length of the transmission mechanism 6.

[0031] In this embodiment, in order to ensure that the two adjustable lens fixing mechanisms 2 can move stably when the horizontal spacing is adjusted, the upper or lower end of the inner fixing seat 24 is formed with a sliding block 27. The two sliding blocks 27 on the two inner fixing seats 24 slide together. The two sliding blocks 27 can be connected by a guide sleeve-guide rod structure or by a slide rail-slide groove structure.

[0032] In this embodiment, a pupillary distance scale 11 is formed on the outer wall of the outer shell 1 at the position corresponding to the eye socket hole. By observing the pupillary distance scale 11 corresponding to the center line of each adjustable lens fixing mechanism 2, the wearer's pupillary distance can be known.

[0033] like Figure 7 As shown, in order to enrich the functions of the instrument, in this embodiment, an external lens holder 7 is detachably connected and installed on the outer wall of the outer shell 1, which is locked at the orbital opening. The external lens holder 7 is formed with at least one lens slot 71, and the Martens rod can be locked in the lens slot 71, which facilitates the detection of strabismus using the Martens rod.

[0034] In this embodiment, an angle disk 26 is formed on the outer wall of the inner fixing seat 24 away from the protective cover 25. By observing the scale of the angle disk 26 corresponding to the markings on the Martens rod or other lenses, the tilt angle of its placement can be understood, which is convenient for use during eye examination.

[0035] The working principle of this utility model is as follows: When in use, the distance between the two adjustable lens fixing mechanisms 2 is adjusted according to the wearer's pupillary distance. Then, the device is fixed to the eye socket using a head strap. The drive mechanism 5 is started by turning the control knob 4 left and right. The drive mechanism 5 drives the lens fixing frame 21 to rotate, realizing the relative rotation of the two frames. Lenses are fixed inside the frames. When the frames rotate, the prism power of the two lenses changes, thereby driving the patient's line of sight to move for progressive dilation and convergence sensitivity training. At the same time, with the use of the Maddox rod, the wearer's strabismus can be measured, such as the horizontal and vertical strabismus angles.

[0036] Preferably, to improve the intelligence level of the eye position training instrument, enhance the ease of operation, and enrich its functions, a control chip for automatic control and a Bluetooth module for data transmission can be fixed on the program PCB board 3. Through the Bluetooth module and the control chip, training parameters (rotation number, rotation mode, inching, unidirectional, bidirectional, cyclic, etc. of the adjustable lens fixing mechanism 2) can be set via a mobile APP / mini-program to achieve intelligent eye training. When a data storage module is configured on the program PCB board 3, training data can be recorded in real time, thereby realizing personalized training programs. At the same time, with the memory function, the user-set parameters can be saved and directly recalled for subsequent training without repeated configuration.

[0037] In summary, the intelligent improvements to this eye position testing and training device can assess near and far horizontal convergence and divergence capabilities (blurring point, break point, recovery point), quantifying the user's visual function status; it provides multiple training modes (point movement, unidirectional, bidirectional, and cyclic), and through visual games and specific eye movement guidance, it can specifically improve problems such as insufficient / excessive convergence and insufficient / excessive divergence; it supports manual and automatic training modes, allowing users to adjust parameters (speed, time, target size, etc.) according to their needs for specialized training such as progressive fusion and convergence sensitivity; it uses BI (internal rotation) and BO (external rotation) controls, combined with a Maslow's rod, to measure strabismus (such as horizontal and vertical strabismus angles); it connects to a WeChat mini-program via Bluetooth to adjust training parameters in real time and record data, covering visual problems of different groups (such as strabismus and convergence / divergence disorders); it has a memory function to save user-set parameters, which can be directly recalled for subsequent training without repeated configuration, reducing repetitive operation costs; and it provides an intuitive operation interface through a WeChat mini-program, allowing users to complete testing and training independently, reducing reliance on professional expertise.

[0038] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0039] Components not described in detail in this article are existing technologies.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ophthalmic training device, characterized in that: The device includes an outer shell (1), on one side of which are formed two eye socket holes. Inside the outer shell (1), corresponding to the positions of the eye socket holes, are installed two adjustable lens fixing mechanisms (2). The distance between the two adjustable lens fixing mechanisms (2) is horizontally adjustable. Inside the outer shell (1), on one side, is a drive mechanism (5) that drives one of the adjustable lens fixing mechanisms (2) to rotate. The two adjustable lens fixing mechanisms (2) rotate synchronously through a transmission mechanism (6) with adjustable length. Inside the outer shell (1), on one side, is a program PCB board (3). The program PCB board (3) is electrically connected to a control knob (4) that controls the forward and reverse rotation of the drive mechanism (5). The adjustable lens fixing mechanism (2) includes an inner fixing seat (24), and the upper and lower ends of the inner fixing seat (24) are formed with limit grooves (28). The inner wall of the outer shell (1) is formed with a support column (13) that is installed in conjunction with the limiting slide groove (28). The support column (13) is horizontally slidably installed in the limiting slide groove (28). A protective cover (25) is installed on one side of the inner fixing seat (24). A lens fixing frame (21) is rotatably installed between the inner fixing seat (24) and the protective cover (25). The lens fixing frame (21) is composed of two nested frames. Each frame has a transmission gear ring (22) on its outer wall that drives the frame to rotate. The drive mechanism (5) is fixed in one of the protective covers (25). The power output end of the drive mechanism (5) is connected to a drive gear (23). The drive gear (23) meshes synchronously with the two transmission gear rings (22) on one of the lens fixing frames (21) to drive the two coaxially mounted frames to rotate in opposite directions.

2. The ophthalmic training device according to claim 1, characterized in that: The upper end of the outer shell (1) is provided with a strap fixing seat (12) for installing the head fixing strap.

3. The ophthalmic training device according to claim 1, characterized in that: The transmission mechanism (6) includes two nested sleeves of freely adjustable length, each sleeve having a gear formed at both ends that meshes synchronously with two transmission gear rings (22) on the lens holder (21).

4. An ophthalmic training device according to claim 1, characterized in that: The upper or lower end of the inner fixing seat (24) is formed with a sliding block (27), and the two sliding blocks (27) on the two inner fixing seats (24) slide together.

5. An ophthalmic training device according to claim 1, characterized in that: An angled disc (26) is formed on the outer wall of the inner fixing seat (24) away from the protective cover (25).

6. An ophthalmic training device according to claim 1, characterized in that: The outer wall of the outer shell (1) is formed with a pupil distance scale (11) corresponding to the position of the eye socket.

7. An ophthalmic training device according to claim 1, characterized in that: An external lens holder (7) that is attached to the outer wall of the outer shell (1) is detachably connected and installed at the eye socket opening. At least one lens slot (71) is formed on the external lens holder (7).

Images