Triangular prism inspection tester
By designing the adjustment structure and chin support component of the prism examination instrument, the complexity of operation and the problem of mirror damage in traditional strabismus examinations have been solved, achieving the effect of convenient adjustment and stabilization of the patient's chin by a single person.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional strabismus examination methods require at least two people to assist, and the prism is not placed in a standardized position, is easily damaged when held by hand, and is inconvenient to operate.
A prism examination instrument was designed, including a base, an examination mirror, an arm assembly, and a chin support assembly. The position and spacing of the arm assembly can be adjusted by adjusting the structure, and the chin support assembly can be used to stabilize the patient's chin and provide support for the face, enabling single-person operation.
It enables a single person to easily adjust the position of the examination scope, ensuring eye alignment, reducing operational complexity and the risk of scope damage, and improving examination efficiency.
Smart Images
Figure CN224099336U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of eye vision examination, specifically relates to a prism tester. BACKGROUND
[0002] Strabismus refers to two eyes cannot fixate on the target at the same time, and belongs to the disease of eye external muscle, and can be divided into two categories of common strabismus and non-common strabismus, common strabismus is mainly characterized by no movement disorder of eyeball, equal strabismus degree of first eye position and second eye position, and non-common strabismus has limited movement of eyeball, and can be caused by trauma or systemic disease, and the harmfulness of strabismus is not only "squinting eyes" damaging appearance, and more importantly, it can destroy binocular single vision (i.e. simultaneous vision, fusion vision and stereoscopic vision) high-level vision function, therefore, the treatment for strabismus is very important, and before treatment, it is generally needed to use strabismus tester to check patients, and the conventional use is to use three prisms to check strabismus, and three prisms are transparent bodies or optical instruments with triangular cross section, since three prisms have the characteristics of making the passing light beam deviate to the tip and making the chromatic dispersion when passing the light, and therefore, three prisms are applied to strabismus examination.
[0003] Strabismus children need to be checked three times by three prisms before operation, and at least two people are needed to assist each time in the traditional checking method, and the three prisms are not placed in a standard position, and the hand-held three prisms are easy to be damaged by falling on the ground, and it is very inconvenient, therefore, the utility model provides a three prism tester. CONTENT OF THE UTILITY MODEL
[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a three prism tester to solve the problems in the above-mentioned background art.
[0005] In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme:
[0006] A three prism tester, comprising a base and a detection mirror, two sliding grooves are arranged on the base, mirror arm assemblies are installed in the sliding grooves, the detection mirror is fixedly connected to the mirror arm assemblies, an adjusting structure for adjusting the distance between the two mirror arm assemblies is arranged between the two mirror arm assemblies, and a chin lifting assembly that can be adjusted in lifting is arranged between the two mirror arm assemblies.
[0007] Through the above-mentioned structure design, the three prism tester adjusts the position of the mirror arm assembly through the adjusting structure, so as to adjust the position of the detection mirror, ensures that the eyes of the patient are aligned with the detection mirror, and the chin lifting assembly stably supports the chin, provides support force for the face, conveniently uses the three prism tester, and the three prism tester is simple in structure, reasonable in design, can be completely adjusted and operated by one person with one hand, and is convenient to use.
[0008] Further, the adjusting structure comprises two fixed angle plates, the two fixed angle plates are fixedly connected on the bottom plate of the base in opposition, two parallel sliding rods are fixedly connected between the two fixed angle plates, two sliding blocks are slidably connected on the sliding rods, a connecting plate is fixedly connected on the sliding blocks, and the mirror arm assemblies are connected on the connecting plate.
[0009] Further, the adjusting structure further comprises a rotating rod and a knob, the rotating rod is connected on the base in penetration and is threadedly connected with the threaded sleeve on the fixed angle plate, the knob is connected on the outer end of the rotating rod, and the other end of the rotating rod is rotationally connected with the sliding block.
[0010] By adopting the above structure design, the specific adjusting principle and operation method of the adjusting structure are as follows: the knob on the side of the base is rotated, the rotating rod is rotated by the knob, the rotating rod is continuously rotated out of the threaded sleeve on the fixed angle plate, the sliding block is moved by the rotating rod, the connecting plate is moved by the sliding block, the mirror arm assemblies are moved by the connecting plate, and the distance between the two mirror arm assemblies is adjusted.
[0011] Further, the mirror arm assembly comprises a connecting block and a connecting arm which are connected with each other, the connecting block is connected on the connecting plate, and the detection mirror is fixedly connected on the upper end of the connecting arm.
[0012] Further, the chin supporting assembly comprises a hollow column, an adjusting rod, an arc-shaped supporting plate and a locking knob, the bottom of the hollow column is fixedly connected on the bottom plate of the base, a through hole is formed in the hollow column, the adjusting rod is movably arranged in the hollow column, the arc-shaped supporting plate is fixedly connected on the upper end of the hollow column, and the locking knob is arranged in the through hole and used for locking the adjusting rod.
[0013] By adopting the above structure design, the adjusting mode of the chin supporting assembly is that the position of the adjusting rod in the hollow column is adjusted, and then the locking knob is screwed to lock the adjusting rod.
[0014] Further, length scale lines for showing the distance between the two mirror arm assemblies are arranged between the two mirror arm assemblies.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] 1. The three-prism inspection instrument adjusts the position of the mirror arm assemblies through the adjusting structure, so that the position of the detection mirror is adjusted, the eyes of the patient are aligned with the inspection mirror, the chin is stably supported by the chin supporting assembly, the supporting force is provided for the face, the use of people is convenient, the three-prism inspection instrument is simple in structure and reasonable in design, one person can complete the adjusting operation by using one hand, and use is convenient.
[0017] 2. The specific adjustment principle of the adjustment structure is as follows: rotating the knob on the side of the base, driving the rotating rod to rotate through the knob, continuously rotating the rotating rod out of the threaded sleeve on the fixed angle plate, thereby moving the sliding block, moving the connecting plate while moving the sliding block, thereby moving the mirror arm assembly, and adjusting the distance between the two mirror arm assemblies;
[0018] 3. The adjustment mode of the chin lifting assembly is adjusting the position of the adjusting rod in the hollow column, and then tightening the locking knob to lock the adjusting rod. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a perspective structural schematic view (view angle one) of an embodiment of the three-prism inspection instrument of the utility model;
[0020] Figure 2 It is a perspective structural schematic view (view angle two) of an embodiment of the three-prism inspection instrument of the utility model;
[0021] Figure 3 It is a perspective structural schematic view (view angle three) of an embodiment of the three-prism inspection instrument of the utility model;
[0022] Figure 4 It is an internal structural schematic view of the three-prism inspection instrument of the utility model;
[0023] The reference signs in the drawings of the specification include:
[0024] Base (1), angle scale line (11), length scale line (12), foot column (13), fixed angle plate (14), sliding rod (15), sliding block (16), connecting plate (17), rotating rod (18), knob (19), chin lifting assembly (2), hollow column (21), adjusting rod (22), arc-shaped supporting plate (23), locking knob (24), mirror arm assembly (3), connecting block (31), connecting arm (32), detection mirror (4). DETAILED DESCRIPTION
[0025] In order for those skilled in the art to better understand the utility model, the technical solutions of the utility model are further described below in combination with the drawings and embodiments.
[0026] Among them, the drawings are only used for example description, and the representation is only a schematic view, not a real object view, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiments of the utility model, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings may be omitted.
[0027] The same or similar reference signs in the drawings of the embodiments of the present utility model correspond to the same or similar components; in the description of the present utility model, it is understood that, if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation and be operated, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as limiting the present patent, for ordinary skilled persons in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0028] In the description of the present utility model, unless explicitly specified and limited, if the terms "connection" and the like indicate the connection relationship between components, the terms should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For ordinary skilled persons in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0029] Embodiment one:
[0030] As Figures 1-4 shown, the present utility model. Specifically, a three-prism inspection instrument, including base 1 and detection mirror 4, base 1 is provided with two sliding grooves, mirror arm assembly 3 is installed in the sliding groove, detection mirror 4 is fixedly connected on mirror arm assembly 3, adjusting structure for adjusting the distance between the two mirror arm assemblies 3 is arranged between the two mirror arm assemblies 3, chin lifting assembly 2 that can be adjusted in lifting is arranged between the two mirror arm assemblies 3.
[0031] By adopting the above structure design, the three-prism inspection instrument adjusts the position of mirror arm assembly 3 through the adjusting structure, so as to adjust the position of detection mirror 4, ensures that the eye of the patient is aligned with the inspection mirror, stably holds the chin through chin lifting assembly 2, provides support force for the face, conveniently uses people, at the same time, the three-prism inspection instrument is simple in structure, reasonable in design, a single hand can complete the adjustment operation, and is convenient to use.
[0032] Detection mirror 4 itself is a prism lens with a specific prism degree, the design of adjusting structure allows the position and distance of mirror arm assembly 3 to be adjusted, and the prism degree can be indirectly changed, especially when the adjusting structure allows detection mirror 4 to be inclined or rotated at a specific angle. In order to intuitively display the current set prism degree, the instrument is provided with a physical scale (such as a scale line engraved on the adjusting structure or mirror arm assembly, not shown in the figure).
[0033] The orientation of the detection mirror 4 determines the direction of the prism, and the adjusting structure not only controls the position and distance of the mirror arm assemblies 3, but also changes the direction of the prism by controlling the rotation or inclination of the detection mirror 4. The instrument is equipped with a visual indicator (shown in the figure).
[0034] The adjusting structure includes two fixed angle plates 14 fixedly connected to the bottom plate of the base 1 opposite to each other, two parallel sliding rods 15 fixedly connected between the two fixed angle plates 14, two sliding blocks 16 slidingly connected to the sliding rods 15, a connecting plate 17 fixedly connected to the sliding blocks 16, and the mirror arm assemblies 3 connected to the connecting plate 17.
[0035] The adjusting structure further includes a rotating rod 18 and a knob 19, the rotating rod 18 is connected to the base 1 and threadedly connected to the threaded sleeve on the fixed angle plate 14, and the knob 19 is connected to the outer end of the rotating rod 18, and the other end of the rotating rod 18 is rotationally connected to the sliding block 16.
[0036] Through the above structure design, the specific adjusting principle and operation method of the adjusting structure are as follows: rotating the knob 19 on the side of the base 1, driving the rotating rod 18 to rotate through the knob 19, constantly rotating the rotating rod 18 out of the threaded sleeve on the fixed angle plate 14, thereby moving the sliding block 16, moving the connecting plate 17 while moving the sliding block 16, thereby moving the mirror arm assemblies 3, and adjusting the distance between the two mirror arm assemblies 3.
[0037] The mirror arm assembly 3 includes a connecting block 31 and a connecting arm 32 connected to each other, the connecting block 31 is connected to the connecting plate 17, and the detection mirror 4 is fixedly connected to the upper end of the connecting arm 32.
[0038] The chin lifting assembly 2 includes a hollow column 21, an adjusting rod 22, an arc-shaped supporting plate 23, and a locking knob 24, the hollow column 21 is fixedly connected to the bottom plate of the base 1 at the bottom, a through hole is formed in the hollow column 21, the adjusting rod 22 is movably arranged in the hollow column 21, the arc-shaped supporting plate 23 is fixedly connected to the upper end of the hollow column 21, and the locking knob 24 is installed in the through hole to lock the adjusting rod 22.
[0039] Through the above structure design, the adjusting method of the chin lifting assembly 2 is as follows: adjusting the position of the adjusting rod 22 in the hollow column 21, and then tightening the locking knob 24 to lock the adjusting rod 22.
[0040] Length scale lines 12 for displaying the distance between the two mirror arm assemblies 3 are arranged between the two mirror arm assemblies 3.
[0041] Working principle; the three-prism inspection instrument adjusts the position of the mirror arm assembly 3 through the adjusting structure, adjusts the position of the detection mirror 4, ensures that the patient's eye is aligned with the inspection mirror, and holds the chin with the chin holding assembly 2, provides support for the face, and facilitates the use of people. At the same time, the three-prism inspection instrument has simple structure and reasonable design. One person can complete the adjustment operation with one hand, which is convenient to use. The specific adjustment principle and operation method of the adjusting structure are that the knob 19 on the side of the base 1 is rotated, the rotating rod 18 is driven to rotate through the knob 19, the rotating rod 18 is continuously rotated out of the threaded sleeve on the fixed angle plate 14, and the sliding block 16 is moved, the connecting plate 17 is moved while the sliding block 16 is moved, and the mirror arm assembly 3 is moved, thereby adjusting the distance between the two mirror arm assemblies 3.
[0042] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme are not described in detail. The ordinary technical personnel in the art know all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in this field, and has the ability to apply conventional experimental means before this date. The ordinary technical personnel in the art can improve and implement the present scheme based on their own ability under the guidance of the present application. Some typical known structures or known methods should not be an obstacle for the ordinary technical personnel in the art to implement the present application. It should be noted that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application. These will not affect the effect and practicality of the present application.
Claims
1. A prism inspection instrument, comprising a base (1) and an inspection mirror (4), wherein the base (1) is provided with two sliding grooves, and an arm assembly (3) is installed in the sliding grooves, and the inspection mirror (4) is fixedly connected to the arm assembly (3), characterized in that: The two mirror arm assemblies (3) are provided with an adjusting structure for adjusting the distance between the two mirror arm assemblies (3), and a chin lifting assembly (2) is arranged between the two mirror arm assemblies (3) and can be adjusted in lifting.
2. A tri-prism inspection apparatus as claimed in claim 1, wherein: The adjusting structure comprises two fixed angle plates (14) which are fixedly connected to the bottom plate of the base (1) in a facing manner, two parallel sliding rods (15) are fixedly connected between the two fixed angle plates (14), two sliding blocks (16) are slidably connected to the sliding rods (15), a connecting plate (17) is fixedly connected to the sliding blocks (16), and the mirror arm assemblies (3) are connected to the connecting plate (17).
3. A tri-prism inspection apparatus as claimed in claim 2, wherein: The adjusting structure further comprises a rotating rod (18) and a knob (19), the rotating rod (18) is connected to the base (1) in a penetrating manner and is threadedly connected to the threaded sleeve of the fixed angle plate (14), the knob (19) is connected to the outer end of the rotating rod (18), and the other end of the rotating rod (18) is rotatably connected to the sliding block (16).
4. A tri-prism inspection apparatus as claimed in claim 3, wherein: The mirror arm assembly (3) comprises a connecting block (31) and a connecting arm (32) which are connected to each other, the connecting block (31) is connected to the connecting plate (17), and the detection mirror (4) is fixedly connected to the upper end of the connecting arm (32).
5. A tri-prism inspection apparatus as claimed in claim 4, wherein: The chin lifting assembly (2) comprises a hollow column (21), an adjusting rod (22), an arc-shaped supporting plate (23), and a locking knob (24), the bottom of the hollow column (21) is fixedly connected to the bottom plate of the base (1), a through hole is formed in the hollow column (21), the adjusting rod (22) is movably arranged in the hollow column (21), the arc-shaped supporting plate (23) is fixedly connected to the upper end of the hollow column (21), and the locking knob (24) is installed in the through hole for tightening the adjusting rod (22).
6. A tri-prism inspection apparatus as claimed in claim 1, wherein: Length scale lines (12) are arranged between the two mirror arm assemblies (3) to display the distance between the two mirror arm assemblies (3).