Portable remote fundus camera

Abstract

A portable remote fundus camera comprises an ear-hung frame, an automatic zoom lens for fundus photography, a control box, the control box is provided with a lens mounting through hole, a plurality of first contact points are arranged in the lens mounting through hole, the first contact points are electrically connected with a control circuit board arranged in the control box, the control circuit board is provided with a wireless control module for receiving remote control commands; one end of the automatic zoom lens is provided with a plurality of second contact points, the automatic zoom lens is mounted in the lens mounting through hole, so that each second contact point is in contact with the corresponding first contact point; the frame of the ear-hung frame is a rectangular frame, the control box is movably arranged in the rectangular frame, so that the automatic zoom lens can be aligned with the left eye or the right eye, a supporting bracket is arranged at the back of the rectangular frame, the edge of the supporting bracket in contact with the forehead of the patient is a concave arc edge, and a first positioning groove is arranged at the position of the supporting bracket in contact with the bridge of the nose of the patient.

Description

Technical Field

[0001] This invention relates to the field of medical testing, specifically to a portable remote fundus camera. Background Technology

[0002] Fundus diseases, including retinal vascular diseases, retinal detachment, pathological myopia, and intraocular tumors, are among the major causes of blindness in ophthalmology. Fundus photography is the primary examination method for fundus diseases and is crucial for screening, diagnosis, treatment, and follow-up. In clinical practice, physicians use fundus cameras to adjust the shooting position, camera focus (especially for certain related lesions), and supplemental lighting intensity to ensure accurate imaging of the fundus lesions, providing a basis for subsequent fundus disease diagnosis.

[0003] However, after most primary hospitals are equipped with fundus cameras, the vast majority of users are not fundus specialists and lack the skills to take fundus photographs and interpret images. As a result, they cannot accurately obtain images with fundus observation value, which affects their accurate judgment of fundus-related diseases.

[0004] Moreover, although the price of existing fundus cameras is getting lower and lower, primary healthcare institutions still cannot afford them. Many community hospitals and physical examination institutions cannot even guarantee the normal equipment, so the diagnosis and treatment of fundus diseases in primary care institutions is extremely inconvenient.

[0005] In response to the two problems that have been difficult to solve simultaneously in this field, there is an urgent need for a fundus camera that is not only simple in structure and inexpensive, but also capable of producing images of fundus observation value without requiring users to have professional fundus photography skills. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a portable remote fundus camera that is simple in structure and inexpensive. Users do not need to have professional fundus photography skills; patients only need to wear the fundus camera described in this invention, and professional physicians can remotely control the fundus camera and use their professional fundus photography skills to make various adjustments such as lens movement, focusing, and supplemental lighting, thereby obtaining more accurate images of lesions. This not only enables remote medical treatment of fundus diseases but also greatly reduces the cost of fundus cameras.

[0007] The objective of this invention is achieved by the following solution: a portable remote fundus camera, comprising an ear-mounted frame, an automatic zoom lens for fundus photography, and a control box. The control box has a lens mounting through hole, and a plurality of first contacts are provided in the lens mounting through hole. The first contacts are electrically connected to a control circuit board provided in the control box. The control circuit board is provided with a wireless control module for receiving remote control commands.

[0008] One end of the automatic zoom lens is provided with a plurality of second contacts, and the automatic zoom lens is installed in the lens mounting through hole so that each second contact contacts the corresponding first contact.

[0009] The frame of the ear-hook type eyeglass frame is a rectangular frame. The control box is installed in the rectangular frame and can move left and right, so that the automatic zoom lens can be aimed at the left or right eye. A support bracket is provided at the back of the rectangular frame. The side of the support bracket that contacts the patient's forehead is a concave arc edge. A first positioning groove is provided at the contact point between the support bracket and the patient's bridge of the nose.

[0010] Preferably, the rectangular frame is provided with a magnetic guide rail, and a rack is provided next to the guide rail. The control box is attracted to the magnetic guide rail by a magnetic strip provided on the rear side, so that the gears of the control box body are exposed and mesh with the rack. The gears are powered by a motor provided in the control box.

[0011] Preferably, the motor shaft of the motor is provided with a first bevel gear, and a second bevel gear is fixedly provided on the side of the first bevel gear, and the first bevel gear meshes with the second bevel gear.

[0012] Preferably, the control box contains a wheel axle, which is circumferentially fixed to the gear.

[0013] Preferably, the lens mounting through hole is a stepped hole, the larger diameter section of which is provided with a first annular magnet, and one end of the autofocus lens is provided with a second annular magnet, the first annular magnet and the second annular magnet attract each other.

[0014] Preferably, the lower end of the ear-hook eyeglass frame is provided with a nasal bridge support, and a second positioning groove is provided at the contact point between the lower end of the nasal bridge support and the patient's nasal bridge.

[0015] Preferably, the control box contains a battery for powering the control circuit board.

[0016] Preferably, a switch is provided on the outside of the control box for controlling the power supply.

[0017] Preferably, the control box is equipped with a supplementary light, which is a low-power LED light.

[0018] Preferably, there are multiple fill lights, and each fill light is evenly arranged around the lens mounting hole.

[0019] The beneficial effects of this invention are as follows:

[0020] The portable remote fundus camera of the present invention includes an ear-mounted frame, an automatic zoom lens for fundus photography, and a control box. The control box has a lens mounting through hole, and a plurality of first contacts are provided in the lens mounting through hole. The first contacts are electrically connected to a control circuit board provided in the control box. The control circuit board is provided with a wireless control module for receiving remote control commands.

[0021] One end of the automatic zoom lens is provided with a plurality of second contacts, and the automatic zoom lens is installed in the lens mounting through hole so that each second contact contacts the corresponding first contact.

[0022] The frame of the ear-hook type eyeglass frame is a rectangular frame. The control box is installed in the rectangular frame and can move left and right, so that the automatic zoom lens can be aimed at the left or right eye. A support bracket is provided at the back of the rectangular frame. The side of the support bracket that contacts the patient's forehead is a concave arc edge. A first positioning groove is provided at the contact point between the support bracket and the patient's bridge of the nose.

[0023] The present invention has a simple structure. The electrical connection between the automatic zoom lens and the control box is made by contact. When the automatic zoom lens needs to be replaced, unlike current fundus cameras, the entire instrument does not need to be disassembled for replacement and repair. It is not only highly reliable, but also economical.

[0024] This invention uses only an automatic zoom lens and a wireless control module. The wireless control module connects the fundus camera to the Internet, allowing professional physicians to remotely control the automatic zoom lens of the fundus camera to move left and right to photograph the location of fundus lesions in patients, providing a basis for subsequent fundus disease diagnosis. Compared with current fundus cameras, it not only achieves the same function but also greatly reduces costs.

[0025] Preferably, the rectangular frame is provided with a magnetic guide rail, and a rack is provided next to the guide rail. The control box is attracted to the magnetic guide rail by a magnetic strip provided on the rear side, so that the gears of the control box body are exposed and mesh with the rack. The gears are powered by a motor provided in the control box.

[0026] The invention has a simple structure. The control box is attached to a magnetic rail by a magnetic strip. The motor inside the control box can be remotely controlled via a network to drive the gear meshing with the rack and pinion, so that the control box can move to the right or left within the rectangular frame. Moreover, the structure is simple, easy to maintain, and very convenient to disassemble and install.

[0027] Preferably, the lens mounting through hole is a stepped hole, the larger diameter section of which is provided with a first annular magnet, and one end of the autofocus lens is provided with a second annular magnet, the first annular magnet and the second annular magnet attract each other.

[0028] The automatic zoom lens and control box are fixed together by magnets, which makes the structure simple and easy to disassemble.

[0029] Preferably, the lower end of the ear-hook eyeglass frame is provided with a nasal bridge support, and a second positioning groove is provided at the contact point between the lower end of the nasal bridge support and the patient's nasal bridge, so as to provide a stable positioning support point for the ear-hook eyeglass frame when the instrument is in use.

[0030] Preferably, the control box contains a battery to power the control circuit board, which not only makes the invention suitable for environments without mains power, but also removes the limitation on the length of the instrument's power cord, achieving true portability.

[0031] Preferably, the control box is equipped with a supplementary light, which is a low-power LED light, providing supplementary lighting for fundus photography while reducing energy consumption and lowering costs.

[0032] Preferably, there are multiple supplementary lights, each evenly arranged around the lens mounting hole, so that the light emitted by the supplementary lights is uniform and more suitable for photographing lesions in the fundus.

[0033] The advantages of this invention are as follows:

[0034] ① Current fundus cameras all use two autofocus lenses, which are complex and costly; this invention uses only one autofocus lens, which is simple, practical and economical, keeping the cost of fundus cameras within the reach of primary healthcare institutions and providing convenience for the diagnosis and treatment of fundus diseases in primary healthcare institutions.

[0035] ② Professional physicians can remotely control the automatic zoom lens of the fundus camera via the internet to photograph the location of fundus lesions in patients, providing a basis for subsequent fundus disease diagnosis. By utilizing the characteristics of the internet, the problem of insufficient professional physicians in primary hospitals, which makes it impossible to accurately obtain images with fundus observation value, is solved, thereby improving the accuracy of primary hospitals in diagnosing fundus-related diseases. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the ear-hook type eyeglass frame and support bracket in this invention;

[0038] Figure 3 This is a top view of the ear-hook type eyeglass frame and support bracket in this invention;

[0039] Figure 4 for Figure 3 View from direction A;

[0040] Figure 5 This is a schematic diagram of the control box in this invention;

[0041] Figure 6 This is a front view of the control box in this invention;

[0042] Figure 7 This is a rear view of the control box in this invention;

[0043] Figure 8 This is a schematic diagram of the internal structure of the control box in this invention;

[0044] Figure 9 This is a schematic diagram of the automatic zoom lens in this invention;

[0045] Figure 10 This is a side view of the automatic zoom lens in this invention;

[0046] Figure 11 for Figure 10 View from direction B;

[0047] Figure 12 This is a schematic diagram of the installation of the automatic zoom lens and control box in this invention. Detailed Implementation

[0048] like Figures 1 to 12 As shown, a portable remote fundus camera includes an ear-mounted frame 1, an automatic zoom lens 2 for fundus photography, and a control box 3. The control box 3 has a lens mounting hole 3a, and multiple first contacts 3b are provided in the lens mounting hole 3a. The first contacts 3b are electrically connected to a control circuit board 3c disposed in the control box 3. The control circuit board 3c has a wireless control module 3d for receiving remote control commands. The control box 3 also contains a battery 3n for powering the control circuit board 3c. The battery 3n is generally a rechargeable lithium battery. A switch 3V is provided on the outside of the control box 3 to control the power supply of the control circuit board 3c. Low-power LED lights 3q are used as supplementary lights. Each supplementary light 3q is evenly arranged around the lens mounting hole 3a through supplementary light mounting holes 3y on the outside of the control box 3 and is electrically connected to the control circuit board 3c.

[0049] The autofocus lens 2 is provided with a plurality of second contacts 2a at one end. The autofocus lens 2 is installed in the lens mounting through hole 3a, so that each second contact 2a contacts the corresponding first contact 3b.

[0050] The ear-hook type eyeglass frame 1 has a rectangular frame 1a. The control box 3 is movably mounted in the rectangular frame 1a, allowing the autofocus lens 2 to be aimed at either the left or right eye. A support bracket 4 is provided at the back of the rectangular frame 1a. The edge of the support bracket 4 that contacts the patient's forehead is a concave arc edge 4a. A first positioning groove 4b is provided at the contact point between the support bracket 4 and the patient's nasal bridge. The lower end of the ear-hook type eyeglass frame 1 has a nasal bridge support part 1d. A second positioning groove 1e is provided at the contact point between the lower end of the nasal bridge support part 1d and the patient's nasal bridge.

[0051] In this embodiment, a magnetic guide rail 1b is provided inside the rectangular mirror frame 1a, and a rack 1c is provided next to the guide rail 1b. The control box 3 is attracted to the magnetic guide rail 1b by a magnetic strip 3e provided on the rear side, so that the gears 3f, which are symmetrically arranged on the control box 3 and exposed in the box body, mesh with the rack 1c. The gears 3f are powered by a motor 3g provided inside the control box 3, and the motor 3g is a stepper motor.

[0052] The motor shaft of the motor 3g is provided with a first bevel gear 3h, and a second bevel gear 3k is fixedly provided on the side of the gear 3f. The first bevel gear 3h meshes with the second bevel gear 3k. The control box 3 is provided with a wheel shaft 3m, which is circumferentially fixed to the gear 3f.

[0053] The lens mounting through hole 3a is a stepped hole, and the larger diameter section of the stepped hole is provided with a first annular magnet 3n. One end of the autofocus lens 2 is provided with a second annular magnet 2b. The first annular magnet 3n and the second annular magnet 2b attract each other. In this embodiment, the first annular magnet 3n and the second annular magnet 2b are each divided into three magnets, and there is a gap between each magnet segment. The first contact point 3b or the second contact point 2a is provided between each magnet segment.

[0054] Of course, to achieve better shooting results, the auto zoom lens 2 can be replaced with a motorized triple-variable lens, or other auto lenses.

[0055] Before taking pictures using the fundus camera described in this invention, a pairing process should be completed first. The specific steps are as follows:

[0056] Press and hold the switch 3V located on the outside of the control box 3. When the working indicator light 3x on the control box 3 starts flashing, it indicates that the fundus camera has entered the pairing state. Use a mobile terminal with the accompanying APP installed to pair the camera and connect it to the Internet.

[0057] The specific steps for using the fundus camera described in this invention to photograph the location of lesions in a patient's fundus are as follows:

[0058] (1) Adjust the patient's wearing posture: The concave arc edge 4a of the support bracket 4 of the fundus camera is in full contact with the patient's forehead, and the first positioning groove 4b of the support bracket 4 and the second positioning groove 1e of the nose bridge support part 1d at the lower end of the ear-hook frame 1 are in full contact with the patient's nose bridge, so that the fundus camera is stably worn on the patient's head, and the patient's eyes are aligned with the rectangular frame 1a of the ear-hook frame 1.

[0059] (2) Call a professional physician via APP to take pictures of the patient's fundus lesion location: The professional physician sends control commands remotely via the Internet, and moves the control box 3 horizontally left and right within the rectangular frame 1a through the stepper motor to aim at the patient's left or right eye, and adjusts the autofocus lens 2 to focus, or uses the supplementary light 3q to supplement the light, so as to obtain a more accurate image of the lesion.

[0060] (3) After the photo is taken, the fundus imaging image will be automatically transmitted to the medical database of professional physicians and local medical institutions via the Internet for filing.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A portable remote fundus camera, characterized in that, The device includes an ear-mounted frame (1), an autofocus lens (2) for fundus photography, and a control box (3). The control box (3) has a lens mounting through hole (3a), and a plurality of first contacts (3b) are provided in the lens mounting through hole (3a). The first contacts (3b) are electrically connected to a control circuit board (3c) provided in the control box (3). The control circuit board (3c) is provided with a wireless control module (3d) for receiving remote control commands. The autofocus lens (2) has multiple second contacts (2a) at one end. The autofocus lens (2) is installed in the lens mounting through hole (3a) so that each second contact (2a) contacts the corresponding first contact (3b). The lens mounting through hole (3a) is a stepped hole. The large diameter section of the stepped hole is provided with a first annular magnet (3n). The autofocus lens (2) has a second annular magnet (2b) at one end. The first annular magnet (3n) and the second annular magnet (2b) attract each other. The first annular magnet (3n) and the second annular magnet (2b) are each divided into three magnets. There is a gap between each magnet segment. The first contact (3b) or the second contact (2a) is located between each magnet segment. The frame of the ear-hook type eyeglass frame (1) is a rectangular frame (1a). The rectangular frame (1a) is equipped with a magnetic guide rail (1b). A rack (1c) is provided next to the guide rail (1b). The control box (3) is attracted to the magnetic guide rail (1b) by a magnetic strip (3e) provided on the rear side. The gears (3f) symmetrically arranged on the control box (3) are exposed and mesh with the rack (1c). The gears (3f) are powered by a motor (3g) provided in the control box (3), so that the control box (3) can be moved left and right in the rectangular frame (1a) so that the autofocus lens (2) can be aimed at the left or right eye. A support bracket (4) is provided at the back of the rectangular frame (1a). The side of the support bracket (4) that contacts the patient's forehead is a concave arc edge (4a). A first positioning groove (4b) is provided at the contact point between the support bracket (4) and the patient's nasal bridge.

2. The portable remote fundus camera according to claim 1, characterized in that, The motor (3g) has a first bevel gear (3h) on its motor shaft, and a second bevel gear (3k) is fixedly mounted on the side of the gear (3f). The first bevel gear (3h) meshes with the second bevel gear (3k).

3. The portable remote fundus camera according to claim 2, characterized in that, The control box (3) is provided with a wheel axle (3m), which is circumferentially fixed to the gear (3f).

4. The portable remote fundus camera according to claim 1, characterized in that, The lower end of the ear-hook type eyeglass frame (1) is provided with a nasal bridge support (1d), and a second positioning groove (1e) is provided at the contact point between the lower end of the nasal bridge support (1d) and the patient's nasal bridge.

5. The portable remote fundus camera according to claim 1, characterized in that, The control box (3) contains a battery for powering the control circuit board (3c).

6. The portable remote fundus camera according to claim 1, characterized in that, The control box (3) is equipped with a switch (3V) on the outside for controlling the power supply.

7. The portable remote fundus camera according to claim 1, characterized in that, The control box (3) is equipped with a supplementary light (3q), which is a low-power LED light.

8. The portable remote fundus camera according to claim 7, characterized in that, There are multiple fill lights (3q), and each fill light (3q) is evenly arranged around the lens mounting through hole (3a).

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