CN215534277U - Portable fundus photographing system - Google Patents

Abstract

The utility model discloses a portable fundus photographing system which comprises a base, a universal rod group, a clamping frame and a lens fixing frame, wherein one end of the universal rod group is hinged to the base; the clamping frame can slide and is locked and installed on the universal rod group, and the clamping frame is used for clamping the photographic equipment; the lens fixing frame is used for clamping the lens and is universally hinged on the other end of the universal rod group. The utility model discloses a portable eye ground camera system supports photographic equipment and lens through universal rod group, can realize photographic equipment and lens regulation of optional position in the space like this, adapts to different use occasions, also need not medical personnel simultaneously and must hand photographic equipment and lens just to patient's visual axis, reduces the operation degree of difficulty. In addition, the clamping frame can slide on the universal rod group, so that the distance between the clamping frame and the lens fixing frame can be adjusted, the photographing device can shoot the affected eye of the patient through the lens, and the use convenience is improved.

Description

Portable fundus photographing system

Technical Field

The utility model relates to the technical field of ophthalmic examination equipment, in particular to a portable fundus photographing system.

Background

The fundus photography system is used for diagnosing fundus diseases such as hypertensive retinopathy, diabetic retinopathy, uveitis, retinal artery obstruction, retinopathy of prematurity and the like.

However, the current fundus photographing systems are expensive, the fundus photographing systems are from dozens to millions, the use cost of the fundus photographing systems is high, and the conventional hospitals cannot allocate the fundus photographing systems to every doctor. Since this type of fundus imaging system is a high-density medical device, its internal structure is complicated, and it is necessary to maintain the fundus imaging system in a faulty state by a manufacturer engineer, which is expensive to maintain. When the doctor consults the patients, the preliminary diagnosis of the eye diseases of the patients can be carried out only by checking the retina image pictures of the patients with the conventional quality, and each patient does not need to shoot the retina images of the eyes of the people with the high quality through the fundus camera system, so that the consultation efficiency of the doctor can be effectively improved, and the consultation cost of the patients is reduced. For example, chinese patent CN 201620725250.6-handheld fundus camera discloses a portable fundus camera, which is handheld and fixed in use, and when in use, medical staff must hold the fundus camera by hand to aim at the visual axis of human eyes until the photographing is completed, which consumes manpower and is labor-intensive. Meanwhile, the distance between the camera and human eyes is difficult to adjust and can only be adjusted by the lens on the camera, so that the whole camera is very inconvenient to use.

Disclosure of Invention

The present invention is intended to solve at least one of the above-mentioned technical problems, and provides a portable fundus imaging system which can be used conveniently and can reduce the labor intensity of medical staff.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a portable fundus photographing system comprises a base, a universal rod group, a clamping frame and a lens fixing frame, wherein one end of the universal rod group is hinged on the base; the clamping frame can slide and is locked and installed on the universal rod group, and the clamping frame is used for clamping the photographic equipment; the lens fixing frame is used for clamping the lens and is universally hinged on the other end of the universal rod group.

Furthermore, the universal rod group comprises a main rod, an auxiliary rod and a sliding rod, one end of the main rod is rotatably connected with the base through a self-locking hinge base, the other end of the main rod is hinged with one end of the auxiliary rod through a damping rotating shaft, and the other end of the auxiliary rod is hinged with one end of the sliding rod through a damping rotating shaft; the clamping frame is slidably mounted on the sliding rod, and the lens fixing frame is connected to the outward end of the sliding rod in a universal mode.

Furthermore, the self-locking hinge base comprises a mounting base body, a mounting shaft, a movable cylinder and a self-locking spring, the mounting base body is rotatably mounted on the base, two mounting lugs are arranged on the mounting base body in parallel, one end of the mounting shaft is mounted on the mounting lugs, the other end of the mounting shaft movably penetrates through the other mounting lug, the movable cylinder is movably sleeved on the mounting shaft, one end of the movable cylinder movably extends into the space between the two mounting lugs, a retaining ring is arranged at one end of the movable cylinder between the two mounting lugs, the self-locking spring is movably sleeved on the mounting shaft, and two ends of the self-locking spring are respectively abutted against the side face of the retaining ring and the side face of the mounting lug opposite to the retaining ring; one end of the main rod is rotatably installed on the movable cylinder, and the self-locking spring can support the main rod tightly on the side wall of the installation lug on one side of the installation shaft penetrating out through the baffle ring.

Further, the clamping frame comprises a sliding seat, a clamping seat and a locking bolt, a sliding hole is formed in the sliding seat, the sliding rod is inserted into the sliding hole in a sliding mode, a nut is installed at one end, located in the sliding hole, of the sliding seat in a rotating mode and connected with the outer surface of the sliding rod in a rotating mode through threads, the sliding seat can only slide along the length direction of the sliding rod, the clamping seat is installed on the sliding seat through a damping rotating shaft, a clamping space for containing the photographic equipment is formed in the clamping seat, the locking bolt is installed on one side of the clamping seat, and the photographic equipment can be tightly supported in the clamping space through the locking bolt.

Furthermore, the lens mount includes two semi-rings, two the semi-ring can the lock form the ring body of putting lens of easy card, two the one end of semi-ring is articulated, other end lock joint, arbitrary be connected through universal connector and the outside one end of slide bar on the outer wall of semi-ring.

Further, any one of the open one end outer wall of the half ring is provided with a female magic tape, the other one of the open one end of the half ring is provided with a deformable extension tongue, and a male magic tape matched with the female magic tape is arranged on the inner side wall of the extension tongue.

Furthermore, the two half rings can be deformed and bent.

Furthermore, a plane is arranged on the outer wall of the sliding rod along the length direction, and a plurality of scale marks are arranged on the plane along the length direction of the sliding rod.

Further, the main rod and the auxiliary rod are telescopic rods.

The utility model has the beneficial effects that:

the utility model discloses a portable eye ground camera system supports photographic equipment and lens through universal rod group, can realize photographic equipment and lens regulation of optional position in the space like this, adapts to different use occasions, also need not medical personnel simultaneously and must hand photographic equipment and lens just to patient's visual axis, reduces the operation degree of difficulty. In addition, the clamping frame can slide on the universal rod group, so that the distance between the clamping frame and the lens fixing frame can be adjusted, the photographing device can shoot the affected eye of the patient through the lens, and the use convenience is improved.

Drawings

The following detailed description of embodiments of the utility model is provided in conjunction with the appended drawings, in which:

FIG. 1 is a first schematic structural diagram according to an embodiment of the present invention;

FIG. 2 is a second schematic structural diagram according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a self-locking hinge base according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a holder according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a lens holder according to an embodiment of the utility model.

In the figure: the lens holder comprises a base 100, a universal rod group 200, a main rod 210, an auxiliary rod 220, a sliding rod 230, a self-locking hinge base 240, a mounting base 241, a mounting shaft 242, a movable cylinder 243, a self-locking spring 244, a mounting lug 245, a stop ring 246, a damping rotating shaft 250, a plane 260, a scale mark 270, a clamping frame 300, a sliding base 310, a clamping base 320, a locking bolt 330, a sliding hole 340, a nut 350, a clamping space 360, a lens fixing frame 400, a half ring 410, a female magic tape 420, a protruding tongue 430, a male magic tape 440, and a universal connector 450

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Referring to fig. 1 to 5, the present application provides a portable fundus photographing system including a base 100, a universal lever set 200, a holder 300, and a lens holder 400, one end of the universal lever set 200 being hinged to the base 100; the clamping frame 300 can be installed on the universal rod set 200 in a sliding and locking manner, and the clamping frame 300 is used for clamping the photographic equipment; the lens holder 400 is used to hold a lens, and is gimbaled on the other end of the gimbal bar set 200. The camera equipment can be a conventional camera or a mobile phone, and the mobile phone is adopted in the application, so that the photos can be transmitted to a computer of a doctor by using a wireless network of the mobile phone, and the method is very convenient. The lens mainly has the function of magnifying the affected eyes of the patient, so that the photographing equipment can conveniently take a picture. In addition, the universal rod set 200 can be a conventional universal deformation pipe in the application, and can also be a conventional universal multi-link structure capable of self-locking, and the universal multi-link structure can be selected according to requirements in actual use. Since the fundus camera system of the present application is used in different usage environments, for this reason, the base 100 may be fixed to a patient bed or an examination chair, which is fixed according to actual usage requirements; meanwhile, some fixing structures, such as a snap ring, a clamp sleeve or a direct screw fixation, may be disposed on the base 100.

Referring to fig. 1-2, in order to fix the lens and the camera device and ensure that the lens and the camera device are relatively stable in position during use, a specific embodiment of a gimbal assembly 200 is provided in an embodiment of the present application. The universal bar group 200 comprises a main bar 210, an auxiliary bar 220 and a sliding bar 230, wherein one end of the main bar 210 is rotatably connected with the base 100 through a self-locking hinge base 240, the other end of the main bar 210 is hinged with one end of the auxiliary bar 220 through a damping rotating shaft 250, and the other end of the auxiliary bar 220 is also hinged with one end of the sliding bar 230 through the damping rotating shaft 250; the holder 300 is slidably mounted on the sliding rod 230, and the lens holder 400 is universally coupled to an outward end of the sliding rod 230. The damping rotating shaft 250 is a conventional rotating shaft structure, which is not described in detail herein, wherein the main rod 210 and the auxiliary rod 220 are hinged through the damping rotating shaft 250, so that the self-locking of the swing angles of the two can be realized, the relative position of the two can be conveniently adjusted, and the spatial adjustment can be realized. The main purpose of the self-locking hinge base 240 is to adjust the swing angle between the main rod 210 and the base 100, for which the self-locking hinge base 240 may adopt a conventional damping rotation shaft 250 structure or a self-locking structure disclosed in a V-shaped self-locking adjustable ball and a rotary hinge device of the patent CN201710927217.0, which is not described in detail herein. In addition, the clamping frame 300 can be slidably mounted on the sliding rod 230 only along the length direction of the sliding rod 230, so that the clamping frame 300 can be fixed, and the clamping frame 300 can be prevented from overturning on the sliding rod 230 due to clamping of the photographic equipment. To achieve such a function, in a modified embodiment, the sliding rod 230 may be provided with a guide groove on an outer wall thereof, and the holder 300 is provided with a guide block engaged with the guide groove. Of course, in other embodiments, in order to prevent the clamp holder 300 from rotating on the sliding rod 230, the sliding rod 230 may have a non-circular cross section.

Referring to fig. 1 to 3, in order to facilitate adjustment of the swing angle of the main lever 210 relative to the base 100, the relative position between the main lever 210 and the base 100 is also fixed; a specific configuration of the self-locking hinge mount 240 is given in one embodiment of the present application. The self-locking hinge base 240 comprises a mounting base 241, a mounting shaft 242, a movable barrel 243 and a self-locking spring 244, wherein the mounting base 241 is rotatably mounted on the base 100, two mounting lugs 245 are arranged on the mounting base 241 in parallel, one end of the mounting shaft 242 is mounted on one mounting lug 245, the other end of the mounting shaft 242 movably penetrates through the other mounting lug 245, the movable barrel 243 is movably sleeved on the mounting shaft 242, one end of the movable barrel 243 movably extends into the space between the two mounting lugs 245, a stop ring 246 is arranged at one end of the movable barrel 243 located between the two mounting lugs 245, the self-locking spring 244 is movably sleeved on the mounting shaft 242, and two ends of the self-locking spring 244 are respectively abutted against the side surface of the stop ring 246 and the side surface of the mounting lug 245 opposite to the stop ring 246; one end of the main rod 210 is rotatably mounted on the movable cylinder 243, and the self-locking spring 244 can tightly press the main rod 210 against the side wall of the mounting lug 245 at the side where the mounting shaft 242 penetrates through the stop ring 246. Wherein, the mounting base 241 and the base 100 can be connected by a conventional damping rotating shaft, so that the rotating angle of the two can be locked. In addition, when the swing angle of the main rod 210 on the movable cylinder 243 needs to be adjusted, the medical staff only needs to press the extending end of the movable cylinder 243, so that the retaining ring 246 releases the main rod 210, and the main rod 210 can rotate relative to the movable cylinder 243; when the main rod 210 needs to be locked, the medical staff only needs to release the pressing end of the movable cylinder 243, at this time, the self-locking spring 244 pushes the movable cylinder 243 to move outwards, at this time, the stop ring 246 abuts against the main rod 210 on the side wall of the mounting ear 245 at the side where the mounting shaft 242 penetrates out, and the locking is realized by using the friction force between the side wall of the main rod 210 and the side wall of the mounting ear 245, so that the operation is convenient. Of course, in some embodiments, the damping shaft 250 may be used between the main rod 210 and the mounting ear 245 for simple design, which facilitates the same component arrangement.

In some embodiments, due to different use environments, in order to improve adaptability, the primary rod 210 and the secondary rod 220 are telescopic rods, so that the medical staff can adjust the lengths of the primary rod 210 and the secondary rod 220 according to actual needs.

With further reference to fig. 1, 2 and 4, to better hold a camera device, particularly a mobile phone, the holding frame 300 may be a holding structure on a mobile phone selfie stick in this application, so that a conventional camera or mobile phone can be firmly held. Of course, in a modified embodiment, the clamping frame 300 includes a sliding seat 310, a clamping seat 320, and a locking bolt 330, wherein a sliding hole 340 is formed in the sliding seat 310, the sliding rod 230 is slidably inserted into the sliding hole 340, a nut 350 is rotatably mounted at one end of the sliding seat 310 located at the sliding hole 340, the nut 350 is screwed to the outer surface of the sliding rod 230, the sliding seat 310 can only slide along the length direction of the sliding rod 230, the clamping seat 320 is mounted on the sliding seat 310 via a damping rotating shaft 250, a clamping space 360 for accommodating a camera device is formed in the clamping seat 320, the locking bolt 330 is mounted on one side of the clamping seat 320, and the locking bolt 330 can tightly press the camera device into the clamping space 360. In this embodiment, the sliding seat 310 is configured like a sleeve, which facilitates the sliding rod 230 to pass through; in order to avoid the rotation of the sliding seat 310 relative to the sliding rod 230, the previous embodiment has described that the cross section of the sliding rod 230 may be designed to be non-circular, and in this application, in order to realize that the nut 350 can rotate on the sliding rod 230, it is preferable that the cross section of the sliding rod 230 is circular, so as to facilitate the rotation of the nut 350, and at the same time, the outer wall of the sliding rod 230 is provided with a guide groove structure along the length direction, and the sliding seat 310 is designed with a guide block structure matching the guide groove. The main function of the nut 350 is to achieve stepless adjustment between the sliding seat 310 and the lens holder 400, so as to ensure the distance between the two.

Referring further to fig. 2, in a modification of the above embodiment, a flat surface 260 is disposed on an outer wall of the sliding rod 230 along the length direction, and a plurality of scale marks 270 are disposed on the flat surface 260 along the length direction of the sliding rod 230. Through the matching of the scale mark 270 and the nut 350, the medical staff can adjust the relative position between the sliding seat 310 and the lens holder 400 according to the actual requirement.

Referring to fig. 1, 2 and 5, in order to better fix the lens, which is substantially in the shape of a circular plate, in one embodiment of the present application, the lens fixing frame 400 includes two half rings 410, the two half rings 410 can be fastened to form a ring body for easily clamping the lens, one end of each of the two half rings 410 is hinged, the other end is fastened, and the outer wall of each of the two half rings 410 is connected to the outward end of the sliding rod 230 through a universal connector 450. The mutual fastening of the two half rings 410 can be realized by a buckle, or by the structural design of a bump and a slot, so long as the lens can be fixed in the ring body. In fact, in order to accommodate lenses with different specifications and diameters and thicknesses, the open ends of the two half rings 410 do not need to be buckled, and the two half rings can be connected at one point through a damping rotating shaft, so that self-locking can be realized.

In an improved embodiment, in order to facilitate the lens assembly and disassembly, the two half rings 410 can be deformed and bent, a female magic tape 420 is disposed on an outer wall of an open end of any one of the half rings 410, a deformable extension tongue 430 is disposed at an open end of the other half ring 410, and a male magic tape 440 matched with the female magic tape 420 is disposed on an inner side wall of the extension tongue 430. The diameter of the ring body can be adjusted by matching the female magic tape 420 with the male magic tape 440, so that the lens ring can adapt to lenses with different specifications and sizes; meanwhile, the two half rings 410 are easier to disassemble and assemble. In fact, the protruding tongue 430 and the other half ring 410 may be fixed by a magnet.

The utility model discloses a portable eye ground camera system supports photographic equipment and lens through universal rod group 200, can realize photographic equipment and lens regulation of optional position in the space like this, adapts to different use occasions, also need not medical personnel simultaneously and must hand photographic equipment and lens just to patient's visual axis, reduces the operation degree of difficulty. In addition, the clamping frame 300 can slide on the universal rod set 200, so that the distance between the clamping frame and the lens fixing frame 400 can be adjusted, the photographing device can photograph the affected eye of the patient through the lens conveniently, and the use convenience is improved.

The above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered within the technical solutions of the present invention.

Claims (9)

1. A portable fundus photography system is characterized by comprising

A base;

one end of the universal rod group is hinged on the base;

the clamping frame can be installed on the universal rod group in a sliding and locking mode and is used for clamping the photographic equipment; and

and the lens fixing frame is used for clamping the lens and is universally hinged on the other end of the universal rod group.

2. A portable fundus camera system according to claim 1, wherein said universal rod set comprises a main rod, an auxiliary rod and a sliding rod, one end of said main rod is rotatably connected to the base through a self-locking hinge base, the other end of said main rod is hinged to one end of said auxiliary rod through a damping rotating shaft, and the other end of said auxiliary rod is also hinged to one end of said sliding rod through a damping rotating shaft; the clamping frame is slidably mounted on the sliding rod, and the lens fixing frame is connected to the outward end of the sliding rod in a universal mode.

3. The portable fundus camera system according to claim 2, wherein the self-locking hinge base comprises a mounting base body, a mounting shaft, a movable barrel and a self-locking spring, the mounting base body is rotatably mounted on the base, two mounting lugs are arranged on the mounting base body in parallel, one end of the mounting shaft is mounted on one mounting lug, the other end of the mounting shaft movably penetrates through the other mounting lug, the movable barrel is movably sleeved on the mounting shaft, one end of the movable barrel movably extends into the space between the two mounting lugs, a retaining ring is arranged at one end of the movable barrel between the two mounting lugs, the self-locking spring is movably sleeved on the mounting shaft, and two ends of the self-locking spring are respectively abutted against the side surface of the retaining ring and the side surface of the mounting lug opposite to the retaining ring; one end of the main rod is rotatably installed on the movable cylinder, and the self-locking spring can support the main rod tightly on the side wall of the installation lug on one side of the installation shaft penetrating out through the baffle ring.

4. The portable fundus camera system according to claim 2, wherein said holder comprises a sliding seat, a holder and a locking bolt, said sliding seat is provided with a sliding hole, said sliding rod is slidably inserted into said sliding hole, said sliding seat is rotatably mounted with a nut at one end of said sliding hole, said nut is screwed with the outer surface of said sliding rod, said sliding seat can only slide along the length direction of said sliding rod, said holder is mounted on said sliding seat through a damping rotating shaft, said holder is provided with a holding space for holding the camera device, said locking bolt is mounted on one side of said holder, said locking bolt can tightly hold the camera device in said holding space.

5. A portable fundus camera system according to claim 2, wherein said lens holder comprises two half-rings, said two half-rings can be fastened together to form a ring body for easily holding the lens, one end of said two half-rings is hinged to the other end of said two half-rings, and the outer wall of any one of said two half-rings is connected to the outward end of the sliding rod through a universal joint.

6. A portable fundus camera system according to claim 5, wherein a female magic tape is provided on an outer wall of an open end of any one of said half rings, a deformable protruding tongue is provided on an open end of the other of said half rings, and a male magic tape fitted with the female magic tape is provided on an inner side wall of said protruding tongue.

7. A portable fundus camera system according to claim 5 and wherein both said half-rings are deformable and bendable.

8. A portable fundus camera system according to claim 2, wherein said outer wall of said slide bar is provided with a flat surface along its length, said flat surface being provided with a plurality of scale marks along its length.

9. A portable fundus camera system according to claim 2, wherein said primary and secondary rods are telescopic rods.

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