Special inspection device for ophthalmology department

Abstract

The utility model belongs to the technical field of medical auxiliary instruments, and particularly relates to a special inspection device for the ophthalmology department. According to the technology, a front-back communicated frame is included, a contact block making contact with a trial frame is arranged on the front side of the frame, an adjusting mechanism used for adjusting the distance between the contact block and the frame is arranged on the contact block, and a binding mechanism fixed to the eyes of a patient is arranged on the rear side of the frame; a first fixing plate is further horizontally arranged on the front side of the top of the frame, the first fixing plate is connected with the top of the frame through a sliding mechanism, the sliding mechanism enables the first fixing plate to slide left and right, and a clamping mechanism for clamping a skiascope is arranged at the bottom of the first fixing plate. According to the design, the distance between the contact block and the frame is adjusted, so that the contact block plays a reference role, and a beginner can conveniently control the distance; and the skiascope is clamped, so that the skiascope is prevented from moving, and a beginner can adjust the skiascope only, and can quickly master the skiascope.

Description

Technical Field

[0001] This utility model belongs to the field of medical auxiliary device technology, and in particular relates to a special examination device for ophthalmology. Background Technology

[0002] Retinoscopy is one of the techniques used in ophthalmological examinations. Refraction is a medical procedure that examines the refractive state of the eye, and its purpose is to provide clear, comfortable, and lasting vision. Retinoscopy is an objective method of refraction. In retinoscopy, the refractive state is assessed by observing the reflected light from the retina of the examined eye using a retinoscope. This process requires the use of a trial frame and lenses. During the examination, the patient puts on the trial frame, the doctor sits opposite the patient, and then holds the retinoscope to conduct the examination.

[0003] However, during the procedure, the doctor's eyes and the patient's eyes need to be on the same horizontal line, and the doctor needs to maintain a certain distance from the patient, generally 50 or 67 centimeters is optimal. This makes it inconvenient for the doctor to hold the retinoscope in one hand and support the frame with the other to maintain the distance. For beginners, the distance control is not very precise at first, and the retinoscope is prone to relative movement during the examination, causing changes in the position between the doctor and the patient, which can lead to large measurement errors. Moreover, beginners need to control the distance and adjust the retinoscope at the same time, making the initial operation difficult to master. Therefore, for beginners, mastering the retinoscopy requires a long period of training and practice. Utility Model Content

[0004] The purpose of this invention is to provide a special examination device for ophthalmology, which makes it easier for beginners to perform examinations using a retinoscope.

[0005] The ophthalmic special examination device includes a frame that is open at the front and back. The front side of the frame is provided with a contact block that contacts the trial lens frame. The contact block is provided with an adjustment mechanism for adjusting the distance between the contact block and the frame. The rear side of the frame is provided with a binding mechanism for fixing it to the patient's eye.

[0006] A first fixing plate is horizontally arranged on the front side of the top of the frame. The first fixing plate is connected to the top of the frame through a sliding mechanism. The sliding mechanism allows the first fixing plate to slide left and right. A clamping mechanism for holding the retinoscope is provided at the bottom of the first fixing plate.

[0007] Furthermore, the sliding mechanism includes a second fixed plate horizontally disposed above the frame, the front side of the second fixed plate extending beyond the front side of the frame and fixed to the first fixed plate, a slider fixed to the bottom of the second fixed plate, and a groove for the slider to be inserted and slide left and right on the top of the frame.

[0008] Furthermore, the slider and the groove are in a "T" shape fit.

[0009] Furthermore, the frame is provided with a locking component for fixing the slider after it slides.

[0010] Furthermore, the locking assembly includes a first bolt, and the second fixing plate and the slider are all vertically provided with a first threaded hole that is connected vertically and threaded with the first bolt. The screw of the first bolt passes through the first threaded hole and rests on the bottom of the groove.

[0011] Furthermore, the clamping mechanism includes two vertically arranged fixing blocks, which are respectively fixed to the bottom of both ends of the first fixing plate. Two clamping blocks are vertically arranged between the two fixing blocks, and springs are horizontally fixed between the clamping blocks and the corresponding fixing blocks.

[0012] Furthermore, a limiting block is fixed to the bottom of the inner side of the clamping block to prevent the retinoscope from sliding down.

[0013] Furthermore, the adjustment mechanism includes a telescopic rod, one end of which is fixed to a contact block, and the other end of which is connected to a frame.

[0014] Furthermore, the telescopic rod is fixed to the frame via a side plate, and the side plate is connected to the frame via a second bolt.

[0015] Furthermore, the binding mechanism includes two binding straps, which are respectively connected to the left and right ends of the frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention adjusts the distance between the contact block and the frame to match the distance between the doctor and the patient. The contact block then makes contact with the patient, serving as a reference point and helping beginners control the distance. Furthermore, by clamping the retinoscope, movement of the retinoscope is prevented, allowing beginners to adjust only the retinoscope, making it easy for them to quickly learn and perform eye examinations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0020] Figure 3 for Figure 2 Enlarged structural diagram at point B;

[0021] Figure 4 is Figure 1 top view structural schematic diagram of

[0022] Names of each component in the figure: 1. Frame; 2. Fixed block; 3. Spring; 4. Clamping block; 5. First bolt; 6. First fixing plate; 7. Block; 8. Protective layer; 9. Side plate; 10. Second bolt; 11. Contact block; 12. Telescopic rod; 13. Strapping; 14. Second fixing plate; 15. Slide block; 16. Protective pad. Specific implementation manners

[0023] The present utility model will be further described below with reference to the accompanying drawings through specific embodiments, but it is not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present invention.

[0024] A special inspection device for ophthalmology described in this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, includes a frame 1 that is communicated front and back. A contact block 11 that contacts the trial lens frame is provided on the front side of the frame 1. The contact block 11 is located on the front side of the right side of the frame 1. Preferably, the contact block 11 is a groove with a "C" - shaped structure. Because when performing retinoscopy through a retinoscope, the patient needs to wear a trial lens frame on the head. The trial lens frame is similar to a frame structure of glasses and is also hung on the patient's ears through the temple pieces. The contact block 11 with a "C" - shaped structure can be clamped on the temple piece beside the trial lens frame. Of course, the contact block 11 can also be an arc - shaped plate that directly fits against the patient's forehead.

[0025] A first fixing plate 6 is horizontally arranged on the front side of the top of the frame 1. A locking block 7 is arranged at the bottom center of the frame 1. The bottom of the locking block 7 has an arc-shaped groove, and a protective layer 8 is arranged in the arc-shaped groove. The protective layer 8 is made of sponge or rubber. The locking block 7 and the protective layer 8 can be placed on the nose to support the frame 1. Of course, the locking block 7 and the protective layer 8 can also be set as the nose pad structure of existing glasses. A second fixing plate 14 is horizontally arranged above the frame 1. The front side of the second fixing plate 14 extends beyond the front side of the frame 1 and is fixed to the first fixing plate 6. The second fixing plate 14 and the first fixing plate 6 are at the same horizontal height. A slider 15 is fixed to the bottom of the second fixing plate 14. A groove is opened on the top of the frame 1 for the slider 15 to be inserted and slide left and right. The second fixing plate 14 slides horizontally by sliding the slider 15 in the groove, and the second fixing plate 14 drives the first fixing plate 6 to slide horizontally. Of course, in some embodiments, a groove for the first fixing plate 6 to be inserted and slide left and right can also be directly opened on the front side of the top of the frame 1. This section as a whole constitutes a sliding mechanism that enables the first fixed plate 6 to slide left and right.

[0026] The slider 15 and the slide groove are in a "T" shape. The slider 15 has an inverted "T" shape structure, and the slide groove at the top of the frame 1 has an inverted "T" shape structure. This can prevent the slider 15 from coming off the slide groove at the top of the frame 1.

[0027] Both the second fixing plate 14 and the slider 15 have vertically connected first threaded holes. A first bolt 5 is installed in the first threaded hole and threadedly engages with it. The screw of the first bolt 5 passes through the first threaded hole and rests on the bottom of the slide groove. Since the slider 15 and the slide groove at the top of the frame 1 are in a "T" shaped fit, when the screw of the first bolt 5 passes through the first threaded hole and rests on the bottom of the slide groove, the slider 15 is tightly attached to the top of the slide groove, thereby fixing the slider 15 in the slide groove. This section as a whole constitutes a locking assembly for fixing the slider 15 after it slides.

[0028] Of course, in some embodiments, the locking component may also include a magnet fixed to the bottom of the slider 15, the magnet being embedded in the bottom of the slider 15, or the magnet having a "T" shaped structure. The bottom of the slider 15 has a first groove for the magnet to be inserted, and a limiting block is fixed at the opening of the first groove to prevent the magnet from detaching. The limiting block makes the first groove a "T" shaped structure. A metal sheet is fixed to the bottom of the top slide groove of the frame 1, and there is a gap between the slider 15 and the top of the slide groove. The slider 15 is fixed to the bottom of the slide groove by magnetic attraction between the magnet and the metal sheet. When the slider 15 is lifted upward, the magnet at the bottom of the slider 15 is detached from the metal sheet, and the slider 15 slides.

[0029] At the bottom of both ends of the first fixing plate 6, fixing blocks 2 are vertically fixed. There are two fixing blocks 2, which are parallel to each other left and right. The two fixing blocks 2 and the first fixing plate 6 as a whole form a "U" - shaped structure. Vertically arranged between the two fixing blocks 2 are two clamping blocks 4. The clamping blocks 4 are parallel to the fixing blocks 2. Horizontally fixed between the clamping blocks 4 and the corresponding fixing blocks 2 are springs 3. A spring 3 is horizontally fixed between the left fixing block 2 and the left clamping block 4, and a spring 3 is horizontally fixed between the right fixing block 2 and the right clamping block 4. In the natural state of the spring 3, the distance between the two clamping blocks 4 is the smallest, and the minimum distance between the two clamping blocks 4 is smaller than the width of the existing retinoscope. Pull the clamping blocks 4 to both sides to compress the spring 3, then place the retinoscope between the two clamping blocks 4. After releasing the clamping blocks 4, the spring 3 restores its elasticity, causing the clamping blocks 4 to move towards the middle to clamp and fix the retinoscope; the content of this paragraph as a whole constitutes a clamping mechanism for clamping the retinoscope.

[0030] Of course, in some embodiments, the spring 3 in the clamping mechanism can be replaced with a bolt. Threaded holes that are in threaded fit with the bolt are provided on the fixing block 2. The screw rod of the bolt passes through the threaded hole and is located between the fixing block 2 and the clamping block 4. A second groove for inserting the screw rod of the bolt is provided on the clamping block 4. The second groove is of a circular structure. A bearing is installed between the screw rod of the bolt and the second groove. Of course, the end of the screw rod that cooperates with the bearing is not provided with threads. The clamping block 4 is moved left and right by the bolt. Of course, in order to prevent the clamping block 4 from rotating, a guide rod is horizontally fixed on the side of the clamping block 4 close to the fixing block 2. A guiding hole for the guide rod to pass through is provided on the fixing block 2. When the clamping block 4 moves left and right, the guide rod slides in the guiding hole to limit the rotation of the clamping block 4.

[0031] At the bottom of the inner side of the clamping block 4, a limiting block for preventing the retinoscope from sliding down is fixed. The inner side of the clamping block 4 refers to the opposite side of the clamping block 4, that is, a limiting block is fixed at the bottom of the right side wall of the left clamping block 4 and the bottom of the left side wall of the right clamping block 4. After clamping the retinoscope between the two clamping blocks 4, the limiting block can prevent the retinoscope from falling down, increasing stability. Of course, a limiting plate is also fixed at the top of the inner side wall of the clamping block 4. By contacting the top of the retinoscope with the limiting plate, the position of the retinoscope can be restricted. Horizontally arranged between the contact block 11 and the frame 1 is a telescopic rod 12. The telescopic rod 12 has the structure of an existing telescopic rod, such as the telescopic structure of a clothes - drying rod. One end of the telescopic rod 12 is fixed to the contact block 11, and the other end of the telescopic rod 12 is connected to the frame 1. The distance between the contact block 11 and the frame 1 is adjusted by the telescopic rod 12; the content of this paragraph as a whole constitutes an adjusting mechanism for adjusting the distance between the contact block 11 and the frame 1.

[0032] Of course, in some embodiments, the adjustment mechanism may also include a horizontally arranged fixed tube, which is fixed to the front side of the frame 1. A fixed rod is installed inside the fixed tube, and one end of the fixed rod passes through the fixed tube and is fixed to the contact block 11. Bolts are provided on the fixed tube to fix the fixed rod.

[0033] The telescopic rod 12 is fixed to the frame 1 via a side plate 9. The height of the side plate 9 is the same as the height of the frame 1. The side plate 9 is connected to the frame 1 via two second bolts 10, arranged vertically. The side plate 9 is located on the right side wall of the frame 1. A first through hole is provided on the side plate 9 through which the screw of the second bolt 10 passes. A threaded groove is provided on the right side wall of the frame 1 for threaded connection with the screw of the second bolt 10. After the side plate 9 is placed on the right side wall of the frame 1, the screw of the second bolt 10 passes through the first through hole on the side plate 9 and is threadedly connected to the frame 1, thereby fixing the side plate 9 to the side wall of the frame 1. The telescopic rod 12 and the frame 1 are detachably connected via the side plate 9 and the second bolt 10, allowing the telescopic rod 12 and the contact block 11 to be disassembled and placed separately.

[0034] The frame 1 is provided with straps 13 at both the left and right ends. There are two straps 13. When in use, the frame 1 is fixed in front of the doctor's eyes by wrapping one end of the two straps 13 around the back of the patient's head and then tying a knot. This section constitutes the binding mechanism for fixing the frame 1 to the patient's eyes.

[0035] Of course, in some embodiments, the binding mechanism can also be an elastic band with its two ends connected to the two ends of the frame 1 respectively. The elasticity of the elastic band fixes the frame 1 to the doctor's head.

[0036] Of course, in order to reduce the discomfort caused by the frame 1 to the area around the eyes, protective pads 16 are provided on the upper and lower sides of the back of the frame 1. The protective pads 16 are adhered to the frame 1 and are made of sponge or rubber. The upper protective pad 16 has an arc-shaped structure on the side away from the frame 1, so that the protective pad 16 fits more closely to the patient's forehead. The protective pads 16 can prevent the frame 1 from directly contacting the area around the patient's eyes, reduce the pressure marks caused by the frame 1 to the area around the eyes, and thus reduce the discomfort caused to the doctor.

[0037] Working principle:

[0038] When performing retinoscopy, frame 1 is secured to the eye using straps 13. The retinoscope is then clamped between two clamping blocks 4, with its lens positioned within frame 1. The distance between contact block 11 and frame 1 is adjusted using telescopic rod 12 to achieve the optimal distance for the doctor to examine the patient's eyes. Contact block 11 provides a reference for novice doctors, allowing for more precise control of the examination distance, reducing errors, and facilitating quick learning. Furthermore, contact block 11 also allows for contact with the patient's trial eyeglasses frame. This design also helps keep the patient's and doctor's eyes at the same level. The first fixing plate 6 slides left and right on the frame 1, allowing for examination of different eyes. The retinoscope is clamped and fixed by the fixing block 2, so the doctor only needs to adjust the retinoscope and does not need to hold it by hand. This avoids shaking of the retinoscope during the examination, allowing beginners to complete low-eye examinations simply by adjusting the retinoscope, reducing the influence of external factors. After becoming familiar with the operation and gaining more experience, beginners can directly hold the retinoscope for examinations, facilitating the transition for beginners.

Claims

1. A special examination apparatus for ophthalmology, comprising a frame (1) open at the front, characterized in that: The front side of the frame (1) is provided with a contact block (11) in contact with the trial frame, the contact block (11) is provided with an adjusting mechanism for adjusting the distance between the contact block (11) and the frame (1), and the rear side of the frame (1) is provided with a binding mechanism to be fixed on the patient's eye; The front side of the top of the frame (1) is also provided with a first fixed plate (6) horizontally, the first fixed plate (6) is connected with the top of the frame (1) through a sliding mechanism, the sliding mechanism makes the first fixed plate (6) slide left and right, and the bottom of the first fixed plate (6) is provided with a clamping mechanism for clamping the retinal camera.

2. The ophthalmic inspection apparatus according to claim 1, characterized by: The sliding mechanism comprises a second fixed plate (14) horizontally arranged above the frame (1), the front side of the second fixed plate (14) beyond the front side of the frame (1) is fixed with the first fixed plate (6), and the bottom of the second fixed plate (14) is fixed with a sliding block (15), and the top of the frame (1) is provided with a sliding groove for inserting and sliding left and right of the sliding block (15).

3. The ophthalmic inspection apparatus according to claim 2, characterized by: The sliding block (15) and the sliding groove are in "T" type cooperation.

4. The ophthalmic inspection apparatus according to claim 3, characterized by: The frame (1) is provided with a locking assembly for fixing the sliding block (15) after sliding.

5. The ophthalmic inspection apparatus according to claim 4, characterized by: The locking assembly comprises a first bolt (5), a second fixed plate (14) and a sliding block (15), and a first threaded hole vertically and upwardly penetrating and threadedly matched with the first bolt (5) is formed in the second fixed plate (14) and the sliding block (15), and the screw rod of the first bolt (5) is arranged on the groove bottom of the sliding groove.

6. The ophthalmic inspection apparatus according to claim 1 or 5, characterized by: The clamping mechanism comprises two fixed blocks (2) vertically arranged, the two fixed blocks (2) are respectively fixed with the bottom of the two ends of the first fixed plate (6), and two clamping blocks (4) are vertically arranged between the two fixed blocks (2), and the spring (3) is horizontally fixed between the clamping block (4) and the corresponding fixed block (2).

7. The ophthalmic inspection apparatus according to claim 6, characterized by: The bottom of the inner side of the clamping block (4) is fixed with a limiting block for preventing the retinal camera from sliding downward.

8. The ophthalmic inspection apparatus according to claim 7, characterized by: The adjusting mechanism comprises a telescopic rod (12), one end of the telescopic rod (12) is fixed with the contact block (11), and the other end of the telescopic rod (12) is connected with the frame (1).

9. The ophthalmic inspection apparatus according to claim 8, characterized by: The telescopic rod (12) is fixed with the frame (1) through a side plate (9), and the side plate (9) is connected with the frame (1) through a second bolt (10).

10. The ophthalmic inspection apparatus according to claim 9, characterized by: The binding mechanism comprises two binding belts (13), and the two binding belts (13) are respectively connected with the left and right ends of the frame (1).

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