Noninvasive eyeball movement amplitude measuring device

Abstract

The utility model discloses a non-invasive eyeball movement amplitude measuring device, which comprises a first measuring rod, a second measuring rod and a controller, the length of the first measuring rod is equal to that of the second measuring rod, and the second measuring rod is rotationally connected with the first measuring rod through a rotating block; the number of the handheld rings is two, the two handheld rings are fixedly connected to the first measuring rod and the second measuring rod respectively, and the distances between the two handheld rings and the rotating block are equal; the fixed point assembly is mounted at one end of the first measuring rod; the observation assembly is installed at one end of the second measuring rod, and the observation assembly and the fixed point assembly are correspondingly arranged; the distance measuring assembly is mounted at the other end of the second measuring rod; and the diameter measuring assembly is mounted at one end, far away from the distance measuring assembly, of the second measuring rod, and is coaxially arranged with the observation assembly. The two measuring rods are used for measuring the movement range of the eyeballs outside the eyes, the eyeballs cannot be damaged, operation is easy, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a non-invasive eye movement amplitude measuring device. Background Art

[0002] Clinical manifestations of oculomotor motility disorders include: ptosis, downward exotropia, inability to move the eye upward, inward, or downward, diplopia, mydriasis, and loss of light and accommodation reflexes when the oculomotor nerve is damaged. Downward and outward eye movements are weakened when the trochlear nerve is damaged, and diplopia worsens with downward eye movement. Isolated trochlear nerve damage is rare. Abducens nerve damage results in esotropia, inability to abduct the eye, and diplopia with outward gaze. Clinically, pupil measurements are often performed visually, using a ruler, or using a pupil comparison ruler, which is significantly influenced by the tester's vision and subjective judgment. Therefore, in clinical practice, doctors often assess changes in eye movement before and after treatment by visual inspection or assessing the patient's sensations. Some doctors also use a simple ruler to roughly measure the amplitude of movement, which can be very inaccurate. Therefore, there is an urgent need for a simple, relatively accurate, and practical ruler for measuring the amplitude of eye movement and pupil diameter for routine use. Utility Model Content

[0003] The purpose of the utility model is to provide a non-invasive eye movement amplitude measuring device to solve the problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a non-invasive eye movement amplitude measurement device, comprising:

[0005] First measuring rod;

[0006] a second measuring rod, wherein the first measuring rod and the second measuring rod are of equal length, and the second measuring rod and the first measuring rod are rotatably connected via a rotating block;

[0007] Hand-held rings, wherein two groups of hand-held rings are provided, and the two groups of hand-held rings are fixedly connected to the first measuring rod and the second measuring rod respectively, and the distance between the two hand-held rings and the rotating block is equal;

[0008] A fixed-point component mounted on one end of the first measuring rod;

[0009] An observation assembly, the observation assembly being mounted on one end of the second measuring rod, the observation assembly being arranged corresponding to the fixed-point assembly;

[0010] a distance measuring assembly mounted on the other end of the second measuring rod;

[0011] a diameter measuring assembly, the diameter measuring assembly being mounted on an end of the second measuring rod away from the distance measuring assembly and being coaxially arranged with the observation assembly;

[0012] The distance between the rotating block and the fixed-point component is equal to the distance between the rotating block and the observation component.

[0013] According to the non-invasive eye movement amplitude measurement device provided by the utility model, the fixed-point component includes a first mounting shaft, the first mounting shaft is vertically arranged to the first measuring rod, the first mounting shaft is rotatably connected to one end of the first measuring rod, and one end of the mounting shaft is fixedly connected to a positioning suction cup.

[0014] According to the non-invasive eye movement amplitude measurement device provided by the utility model, the observation component includes a second mounting shaft, the second mounting shaft is arranged perpendicular to the second measuring rod, the second mounting shaft is rotatably connected to one end of the second measuring rod, and is fixedly connected to a magnifying glass.

[0015] According to the non-invasive eye movement amplitude measurement device provided by the utility model, the distance measurement component includes a measuring tape fixedly connected to one end of the first measuring rod, and one end of the measuring tape is detachably connected to the end of the second measuring rod away from the second mounting axis.

[0016] According to the non-invasive eye movement amplitude measurement device provided by the utility model, the diameter measurement component includes a measuring plate rotatably connected to the second mounting axis away from the end of the magnifying glass, scale lines are set along the diameter line on the measuring plate, and marking lines are set on the measuring plate, and the marking lines are set corresponding to the scale lines.

[0017] According to the non-invasive eye movement amplitude measurement device provided by the utility model, the length ratio of the distance between the rotating block and the first installation axis to the distance between the rotating block and the measuring tape is 1:4.

[0018] According to the non-invasive eye movement amplitude measurement device provided by the utility model, an isoline is wound around the first installation shaft, one end of the isoline is wound around the second installation shaft, and the isoline is arranged corresponding to the marking line.

[0019] The utility model discloses the following technical effects:

[0020] When the utility model is used, a fixed-point component is used to position the first measuring rod at the inner canthus or outer canthus of the affected eye, and the patient is asked to move the eyeball to one side to the maximum extent. Then, the operator uses a handheld ring operating device to open the first measuring rod and the second measuring rod to form an X-shaped structure. The observation component observes the innermost edge or the outermost edge of the iris. At this time, the distance measuring component measures the distal distance of the first measuring rod and the second measuring rod. The distal distance difference is proportional to the proximal distance difference. Therefore, the ratio of the two distal distances to the proximal distances can be calculated by rotating the block to obtain the ratio of the lengths of the two ends of the first measuring rod or the second measuring rod, thereby obtaining the eyeball movement amplitude data.

[0021] The utility model adopts two measuring rods to measure the amplitude of eyeball movement outside the eye, which will not damage the eyeball, is simple to operate and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the non-invasive eye movement amplitude measurement device of the utility model;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0025] Among them, 1. First measuring rod; 2. Second measuring rod; 3. Rotating block; 4. Hand-held ring; 5. First mounting axis; 6. Positioning suction cup; 7. Second mounting axis; 8. Magnifying glass; 9. Measuring tape; 10. Measuring plate; 11. Scale line; 12. Marking line; 13. Equal volume line. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] Reference Figure 1-2The present invention provides a non-invasive eye movement amplitude measurement device, comprising:

[0029] First measuring rod 1;

[0030] The second measuring rod 2 is equal in length to the first measuring rod 1 and the second measuring rod 2, and the second measuring rod 2 is rotatably connected to the first measuring rod 1 via a rotating block 3;

[0031] Hand-held rings 4, which are provided in two groups. The two groups of hand-held rings 4 are fixedly connected to the first measuring rod 1 and the second measuring rod 2, respectively. The distance between the two hand-held rings 4 and the rotating block 3 is equal;

[0032] A fixed-point component is installed at one end of the first measuring rod 1;

[0033] An observation component is mounted on one end of the second measuring rod 2 and is provided corresponding to the fixed-point component;

[0034] A distance measuring assembly is mounted on the other end of the second measuring rod 2;

[0035] A diameter measuring assembly is mounted on the end of the second measuring rod 2 away from the distance measuring assembly and is coaxially arranged with the observation assembly;

[0036] The distance between the rotating block 3 and the fixed-point component is equal to the distance between the rotating block 3 and the observation component.

[0037] When the present invention is used, a fixed-point component is used to position the first measuring rod 1 at the inner canthus or outer canthus of the affected eye, and the patient is asked to move the eyeball to one side to the maximum extent. Then, the operator uses the handheld ring 4 to operate the device to open the first measuring rod 1 and the second measuring rod 2 to form an X-shaped structure. The observation component observes the innermost edge or the outermost edge of the iris. At this time, the distance measuring component measures the distal distance of the first measuring rod 1 and the second measuring rod 2. The distal distance difference is proportional to the proximal distance difference. Therefore, the ratio of the two distal distances to the proximal distance can be calculated by rotating the block 3 with the ratio of the lengths of the two ends of the first measuring rod 1 or the second measuring rod 2, thereby obtaining the eyeball movement amplitude data.

[0038] The utility model adopts two measuring rods to measure the amplitude of eyeball movement outside the eye, which will not damage the eyeball and is easy to operate.

[0039] According to a further optimized solution, the fixed-point assembly includes a first mounting shaft 5, which is vertically arranged to the first measuring rod 1, and the first mounting shaft 5 is rotatably connected to one end of the first measuring rod 1, and a positioning suction cup 6 is fixedly connected to one end of the mounting shaft.

[0040] In a further optimization, the observation assembly includes a second mounting shaft 7, which is perpendicular to the second measuring rod 2 and pivotally connected to one end of the second measuring rod 2. A magnifying glass 8 is fixedly connected thereto. The height of the magnifying glass 8 is less than that of the positioning suction cup 6, thereby preventing the magnifying glass 8 from intruding into the eyeball.

[0041] In a further optimized solution, the distance measuring assembly includes a measuring tape 9 fixedly connected to one end of the first measuring rod 1 , and one end of the measuring tape 9 is detachably connected to an end of the second measuring rod 2 away from the second mounting axis 7 .

[0042] A further optimized solution includes a diameter measurement assembly comprising a measuring plate 10 rotatably connected to the end of the second mounting shaft 7 away from the magnifying glass 8. Measuring plate 10 is provided with scale lines 11 along the diameter line, and measuring plate 10 is provided with marking lines 12, which are arranged corresponding to scale lines 11. By aligning measuring plate 10 with the pupil, the magnifying glass 8 is used to read the countable number on it, thereby obtaining the through-hole diameter data.

[0043] In a further optimization, the ratio of the distance between the rotating block 3 and the first mounting axis 5 to the distance between the rotating block 3 and the measuring tape 9 is 1:4. The ends are arranged in equal proportions, so that two opposite triangles are formed between the end of the first measuring rod 1 and the rotating block 3, between the second measuring rod 2 and the rotating block 3, and between the two ends. This creates a 1:4 ratio between the length of the measuring tape 9 and the distance between the first mounting axis 5 and the second mounting axis 7, facilitating accurate proportional calculation of the distance between the first mounting axis 5 and the second mounting axis 7.

[0044] According to a further optimized solution, an equal-value line 13 is wound around the first installation shaft 5 , one end of the equal-value line 13 is wound around the second installation shaft 7 , and the equal-value line 13 is arranged corresponding to the marking line 12 .

[0045] By setting the isoline 13, it can be parallel to the measuring tape 9. In this way, the isoline 13 can measure the horizontal distance between the innermost edge or outermost edge of the iris and the inner canthus or outer canthus of the affected eye, thereby accurately measuring the range of eye movement. By making the isoline 13 correspond to the marking line 12, the distance between the inner canthus or outer canthus of the affected eye and the innermost edge or outermost edge of the iris can be measured, which facilitates subsequent data analysis.

[0046] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0047] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A non-invasive eye movement amplitude measurement device, characterized in that: include: a first measuring rod (1); a second measuring rod (2), wherein the first measuring rod (1) and the second measuring rod (2) are of equal length, and the second measuring rod (2) and the first measuring rod (1) are rotatably connected via a rotating block (3); Hand-held rings (4), wherein two groups of hand-held rings (4) are provided, and the two groups of hand-held rings (4) are fixedly connected to the first measuring rod (1) and the second measuring rod (2), respectively, and the distance between the two hand-held rings (4) and the rotating block (3) is equal; A fixed point component, the fixed point component being mounted on one end of the first measuring rod (1); An observation component, the observation component is mounted on one end of the second measuring rod (2), and the observation component is arranged corresponding to the fixed point component; a distance measuring assembly, the distance measuring assembly being mounted on the other end of the second measuring rod (2); a diameter measuring assembly, the diameter measuring assembly being mounted on an end of the second measuring rod (2) away from the distance measuring assembly and being coaxially arranged with the observation assembly; The distance between the rotating block (3) and the fixed-point component is equal to the distance between the rotating block (3) and the observation component.

2. The non-invasive eye movement amplitude measurement device according to claim 1, characterized in that: The fixed point assembly comprises a first mounting shaft (5), the first mounting shaft (5) being arranged perpendicular to the first measuring rod (1), the first mounting shaft (5) being rotatably connected to one end of the first measuring rod (1), and a positioning suction cup (6) being fixedly connected to one end of the mounting shaft.

3. The non-invasive eye movement amplitude measurement device according to claim 2, characterized in that: The observation assembly comprises a second mounting shaft (7), the second mounting shaft (7) is arranged perpendicular to the second measuring rod (2), the second mounting shaft (7) is rotatably connected to one end of the second measuring rod (2), and is fixedly connected to a magnifying glass (8).

4. The non-invasive eye movement amplitude measurement device according to claim 3, characterized in that: The distance measuring assembly comprises a measuring tape (9) fixedly connected to one end of the first measuring rod (1), and one end of the measuring tape (9) is detachably connected to an end of the second measuring rod (2) away from the second mounting axis (7).

5. The non-invasive eye movement amplitude measurement device according to claim 3, characterized in that: The diameter measuring assembly comprises a measuring plate (10) rotatably connected to an end of the second mounting shaft (7) away from the magnifying glass (8), wherein a scale line (11) is provided on the measuring plate (10) along a diameter line, and a marking line (12) is provided on the measuring plate (10), and the marking line (12) is provided corresponding to the scale line (11).

6. The non-invasive eye movement amplitude measurement device according to claim 4, characterized in that: The length ratio of the distance between the rotating block (3) and the first mounting shaft (5) to the distance between the rotating block (3) and the measuring tape (9) is 1:

4.

7. The non-invasive eye movement amplitude measurement device according to claim 5, characterized in that: An isometric line (13) is wound around the first installation shaft (5), one end of the isometric line (13) is wound around the second installation shaft (7), and the isometric line (13) is arranged corresponding to the marking line (12).

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