Handheld ophthalmoscope

Abstract

The utility model discloses a handheld ophthalmoscope which comprises an ophthalmoscope handle, an ophthalmoscope lens arranged at one end of the ophthalmoscope handle and an eye covering plate arranged on one side of the ophthalmoscope lens, and a peeping hole is formed in the ophthalmoscope lens. The device further comprises a rotating frame and a connecting arm. A rotating shaft is arranged at the front end of the ophthalmoscope lens, the front part of the rotating frame is rotationally mounted on the rotating shaft, and the rotating frame can rotate around the periphery of the ophthalmoscope lens; the connecting arm is hinged to the outside of the rotating frame, the eye covering plate is connected with the connecting arm in a telescopic mode, and the eye covering plate can be unfolded to a using state or folded on one side of a lens of the ophthalmoscope by rotating the connecting arm. The eye shielding plate can be folded and stored conveniently, the size is small after the eye shielding plate is folded, and carrying is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ophthalmological examination equipment, in particular to a handheld fundus ophthalmoscope. Background Art

[0002] Fundus ophthalmoscope is a commonly used examination device in ophthalmology. It mainly uses lighting and magnification systems to allow doctors to observe fundus structures such as the retina, optic nerve head, and macula, thereby helping to diagnose a variety of eye diseases, such as retinopathy, macular degeneration, glaucoma, etc. Fundus ophthalmoscope plays an important role in clinical diagnosis of ophthalmology.

[0003] When using an ophthalmoscope to examine the fundus, the doctor needs to observe with one eye through the peephole of the ophthalmoscope and close the other eye, but many people are not used to opening one eye and closing the other. In order to solve this problem, Chinese utility model patent CN204468038U discloses a portable and detachable eye shield for an ophthalmoscope. The patent shields the non-observing eye by setting an eye shield, thereby eliminating the trouble of closing the eye. However, the above patent is not convenient for folding and storing the eye shield, and the storage occupies a large space, which is not convenient for carrying in a pocket. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a handheld fundus ophthalmoscope, which is convenient for folding and storing an eye shield, and has a small volume after folding, and is easy to carry.

[0005] The utility model provides a handheld ophthalmoscope, comprising an ophthalmoscope handle, an ophthalmoscope lens arranged at one end of the ophthalmoscope handle, and an eye shield arranged at one side of the ophthalmoscope lens, wherein a peephole is arranged on the ophthalmoscope lens;

[0006] Also includes a rotating frame and a connecting arm;

[0007] A rotating shaft is provided at the front end of the fundus scope lens, and the front part of the rotating frame is rotatably mounted on the rotating shaft, and the rotating frame can rotate around the periphery of the fundus scope lens;

[0008] The connecting arm is hinged outside the rotating frame, and the eye shield is telescopically connected to the connecting arm. The eye shield can be unfolded to a use state or folded on one side of the fundus mirror lens by rotating the connecting arm.

[0009] Furthermore, the rotating frame includes an arc-shaped plate adapted to the outer contour of the fundus scope lens, and a connecting plate vertically arranged at the front end of the arc-shaped plate, and the connecting plate is rotatably connected to the rotating shaft.

[0010] Furthermore, the connecting plate is provided with a mounting hole, the rotating shaft passes through the mounting hole, and the front end of the rotating shaft is threadedly sleeved with a first locking nut.

[0011] Furthermore, a hinge seat is provided on the outer side of the rotating frame, one end of the connecting arm is installed in the hinge seat through a hinge shaft, one end of the hinge shaft passes through one side of the hinge seat and is provided with an end cap, and the other end of the hinge shaft passes through the other side of the hinge seat and is threadedly sleeved with a second locking nut.

[0012] Furthermore, positioning blocks are provided on both sides of the fundus mirror lens, and when the eye shield is rotated to the use state of each side, the rotating frame is respectively positioned on the positioning blocks on the corresponding side.

[0013] Furthermore, a slot extending toward the other side is provided on one side of the eye shield, and the connecting arm is telescopically connected in the slot.

[0014] Furthermore, the rotating frame and the connecting arm are both metal parts, and the eye shield is a plastic part.

[0015] Furthermore, the shape of the eye shield is circular, elliptical or rectangular.

[0016] The beneficial effects of the utility model are embodied in:

[0017] When the handheld ophthalmoscope is used, the eye shield is first rotated relative to the rotating frame to unfold the eye shield to one side of the ophthalmoscope lens, and then the rotating frame is rotated relative to the ophthalmoscope lens to rotate the eye shield to the side where the eye needs to be shielded, and at the same time, the eye shield is extended and retracted relative to the connecting arm to adjust the distance between the eye shield and the ophthalmoscope lens, so that the distance between the eye shield and the ophthalmoscope lens meets the doctor's requirement for the distance between both eyes. In this way, during the examination, the doctor can observe the patient's fundus through the peephole with one eye, and the other eye can be covered by the eye shield, eliminating the trouble of closing the eyes. When not in use, the eye shield and the connecting arm can be retracted, and the eye shield can be folded on one side of the ophthalmoscope lens, so that the eye shield will basically not increase the volume of the ophthalmoscope when folded and stored, and the volume is small after folding, which is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 It is a schematic diagram of the structure when the embodiment of the utility model is used;

[0020] Figure 2 for Figure 1 AA section view;

[0021] Figure 3This is a schematic diagram of the structure of the embodiment of the utility model when folded and stored;

[0022] Figure 4 for Figure 3 BB cross-sectional view.

[0023] In the accompanying drawings, 100 is an ophthalmoscope handle; 200 is an ophthalmoscope lens; 210 is a peephole; 220 is a rotating shaft; 221 is a first locking nut; 230 is a positioning block; 300 is an eye shield; 310 is a slot; 400 is a rotating frame; 410 is an arc plate; 420 is a connecting plate; 430 is a hinge seat; 500 is a connecting arm; 510 is a hinge shaft; 511 is an end cap; and 520 is a second locking nut. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0025] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0026] like Figure 1-Figure 4 As shown, an embodiment of the utility model provides a handheld ophthalmoscope, including an ophthalmoscope handle 100, an ophthalmoscope lens 200 arranged at one end of the ophthalmoscope handle 100, an eye shield 300 arranged at one side of the ophthalmoscope lens 200, a rotating frame 400 and a connecting arm 500, and a peephole 210 is provided on the ophthalmoscope lens 200.

[0027] A rotating shaft 220 is disposed at the front end of the fundus scope lens 200 , and the front portion of the rotating frame 400 is rotatably mounted on the rotating shaft 220 . The rotating frame 400 can rotate around the periphery of the fundus scope lens 200 .

[0028] Specifically, the rotating frame 400 includes an arc-shaped plate 410 adapted to the outer contour of the fundus lens 200, and a connecting plate 420 vertically arranged at the front end of the arc-shaped plate 410, and the connecting plate 420 is rotatably connected to the rotating shaft 220. Preferably, a mounting hole is provided on the connecting plate 420, and the rotating shaft 220 passes through the mounting hole. The front end of the rotating shaft 220 is threadedly sleeved with a first locking nut 221, so that the tightness of the rotation of the rotating frame 400 can be adjusted by rotating the first locking nut 221.

[0029] The connecting arm 500 is hinged to the outside of the rotating frame 400 , and the eye shield 300 is telescopically connected to the connecting arm 500 . The eye shield 300 can be unfolded to a use state or folded to one side of the fundus scope lens 200 by rotating the connecting arm 500 .

[0030] Specifically, a hinge seat 430 is provided on the outer side of the rotating frame 400, and one end of the connecting arm 500 is installed in the hinge seat 430 through a hinge shaft 510. One end of the hinge shaft 510 passes through one side of the hinge seat 430 and is provided with an end cap 511, and the other end of the hinge shaft 510 passes through the other side of the hinge seat 430 and is threadedly sleeved with a second locking nut 520, so that the tightness of the rotation of the connecting arm 500 can be adjusted by rotating the second locking nut 520.

[0031] In this embodiment, positioning blocks 230 are provided on both sides of the fundus mirror lens 200. When the eye shield 300 is rotated to the use state on each side, the rotating frame 400 is respectively positioned on the positioning blocks 230 on the corresponding side, thereby positioning the eye shield 300 when it is rotated to the positions on both sides of the fundus mirror lens 200.

[0032] In order to achieve a telescopic connection between the eye shield 300 and the connecting arm 500 , a slot 310 extending toward the other side is provided on one side of the eye shield 300 , and the connecting arm 500 is telescopically connected in the slot 310 .

[0033] In this embodiment, the rotating frame 400 and the connecting arm 500 are preferably metal parts, and the eye shield 300 is preferably a plastic part. The shape of the eye shield 300 can be circular, elliptical or rectangular.

[0034] When the handheld fundusoscope is used, the eye shield 300 is first rotated relative to the rotating frame 400 to unfold the eye shield 300 to one side of the fundusoscope lens 200, and then the rotating frame 400 is rotated relative to the fundusoscope lens 200 to rotate the eye shield 300 to the side where the eye needs to be shielded, and the eye shield 300 is extended and retracted relative to the connecting arm 500 to adjust the distance between the eye shield 300 and the fundusoscope lens 200, so that the distance between the eye shield 300 and the fundusoscope lens 200 meets the doctor's requirement for the distance between the two eyes. In this way, during the examination, the doctor can observe the fundus of the patient through the peephole 210 with one eye, and the other eye can be covered by the eye shield 300, eliminating the trouble of closing the eyes. When not in use, the eye shield 300 and the connecting arm 500 can be retracted, and the eye shield 300 can be folded on one side of the fundusoscope lens 200, so that the eye shield 300 basically does not increase the volume of the fundusoscope when folded and stored, and the volume is small after folding, which is easy to carry.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A handheld ophthalmoscope, comprising an ophthalmoscope handle, an ophthalmoscope lens disposed at one end of the ophthalmoscope handle, and an eye shield disposed at one side of the ophthalmoscope lens, wherein the ophthalmoscope lens is provided with a peephole, characterized in that: Also includes a rotating frame and a connecting arm; A rotating shaft is provided at the front end of the fundus scope lens, and the front part of the rotating frame is rotatably mounted on the rotating shaft, and the rotating frame can rotate around the periphery of the fundus scope lens; The connecting arm is hinged outside the rotating frame, and the eye shield is telescopically connected to the connecting arm. The eye shield can be unfolded to a use state or folded on one side of the fundus mirror lens by rotating the connecting arm.

2. The handheld ophthalmoscope according to claim 1, characterized in that: The rotating frame comprises an arc-shaped plate adapted to the outer contour of the fundus scope lens, and a connecting plate vertically arranged at the front end of the arc-shaped plate, and the connecting plate is rotatably connected to the rotating shaft.

3. The handheld ophthalmoscope according to claim 2, characterized in that: The connecting plate is provided with a mounting hole, the rotating shaft passes through the mounting hole, and the front end of the rotating shaft is threadedly sleeved with a first locking nut.

4. The handheld ophthalmoscope according to claim 1, characterized in that: A hinge seat is provided on the outer side of the rotating frame, one end of the connecting arm is installed in the hinge seat through a hinge shaft, one end of the hinge shaft passes through one side of the hinge seat and is provided with an end cap, and the other end of the hinge shaft passes through the other side of the hinge seat and is threadedly sleeved with a second locking nut.

5. The handheld ophthalmoscope according to claim 1, characterized in that: Positioning blocks are arranged on both sides of the fundus mirror lens. When the eye shield is rotated to the use state of each side, the rotating frame is respectively positioned on the positioning blocks on the corresponding side.

6. The handheld ophthalmoscope according to claim 1, characterized in that: One side of the eye shield is provided with a slot extending toward the other side, and the connecting arm is telescopically connected in the slot.

7. The handheld ophthalmoscope according to claim 1, characterized in that: The rotating frame and the connecting arm are both metal parts, and the eye shield is a plastic part.

8. The handheld ophthalmoscope according to claim 1, characterized in that: The shape of the eye shield is circular, oval or rectangular.

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