Fundus observation device
By using a roller and detection module to automatically adjust the focus in the fundus observation device, the problem of inconvenient focusing in traditional fundus imagers is solved, achieving a more efficient and accurate focusing process.
Patent Information
- Application Number
- CN202422759962.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Traditional fundus imaging devices require operators to precisely control the pressing time of buttons during focusing, which makes adjustment inconvenient and requires multiple alternating presses to achieve the desired focus.
The system uses a roller and a detection module in conjunction with a control module. The focus is adjusted by detecting the rotation angle of the roller, and the drive mechanism moves the outer shell to achieve automatic focusing, simplifying the operation process.
It improves the accuracy and efficiency of focusing, reduces operational complexity, and enhances ease of use and testing efficiency.
Smart Images
Figure CN223746365U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ophthalmic examination technical field, especially in kind of fundus observation device. BACKGROUND
[0002] Fundus imaging instrument is an important medical equipment, is used for shooting the image of fundus structure such as retina, optic nerve, blood vessel and choroid of eye. These images are crucial for diagnosing and monitoring a variety of ophthalmic diseases. Fundus imaging instrument is usually based on optical imaging technology, uses specific lens and illumination system to capture the image of fundus. It can provide detailed view of retina, help doctors to assess the condition and make treatment plan.
[0003] The fundus imaging instrument needs to be focused when using, and the traditional fundus imaging instrument is focused by two buttons, when pressing one button, the focusing module works, the focal length increases, when pressing the other button, the focal length decreases, and after releasing the button, the focal length stops changing, however, the focusing by button needs the operator to accurately control the time of pressing button, and the two buttons need to be pressed alternately when adjusting, and it needs to be adjusted for several times to be in place, and the convenience is poor. UTILITARY MODEL CONTENT
[0004] The main purpose of the utility model is to provide a kind of fundus observation device, to improve the convenience of use.
[0005] To achieve the above object, the utility model provides a kind of fundus observation device, comprising:
[0006] Machine base;
[0007] Shell, can be movably installed on the top surface of the machine base;
[0008] Fundus observation mechanism, is installed in the shell, the fundus observation mechanism includes focusing module and control module, the focusing module is used to adjust focal length, the control module is electrically connected with the focusing module;And,
[0009] Adjusting mechanism, is installed in the shell, the adjusting mechanism includes roller and detection module, the roller is at least partially exposed outside the shell, the detection module is electrically connected with the control module, the detection module is used to detect the rotation angle of roller and generates detection signal, the control module is used to receive the detection signal and sends instruction signal to the focusing module, to adjust the focal length of fundus observation mechanism.
[0010] In some embodiments of the utility model, the fundus observation device further includes driving mechanism, the driving mechanism is installed in the shell, and is connected with the machine base, to drive the shell to move relative to the machine base, the driving mechanism is electrically connected with the control module;
[0011] The adjusting mechanism further comprises a movement adjusting assembly, the roller is mounted on the movement adjusting assembly, the movement adjusting assembly is electrically connected with the control module, the movement adjusting assembly is controlled by a user and generates a movement signal, and the control module is used for sending a control signal to the driving mechanism when the movement signal is received, so as to adjust the position of the shell relative to the base.
[0012] In some embodiments of the utility model, the detection module comprises a magnetic piece and a detection piece, the movement adjusting assembly is provided with a mounting groove, the roller is rotatably mounted in the mounting groove and partially exposed outside the mounting groove;
[0013] The magnetic piece is mounted on the roller, the detection piece is mounted on the groove wall of the mounting groove and electrically connected with the control module, and the detection piece generates the detection signal when the surrounding magnetic field changes.
[0014] In some embodiments of the utility model, the detection piece is a Hall element.
[0015] In some embodiments of the utility model, the detection piece is a moving electromotive force lead wire.
[0016] In some embodiments of the utility model, the roller comprises a wheel body and an axle connected with each other, both ends of the axle are rotatably mounted on the groove walls on opposite sides of the mounting groove, and the wheel body is partially exposed outside the mounting groove.
[0017] The magnetic piece is a magnetic ring, and the magnetic ring is mounted on the wheel body.
[0018] In some embodiments of the utility model, one side of the wheel body in the axial direction is provided with an assembly groove arranged around the axle, and the magnetic ring is assembled in the assembly groove.
[0019] In some embodiments of the utility model, the outer circumferential surface of the wheel body is provided with anti-skid lines.
[0020] In some embodiments of the utility model, the movement adjusting assembly comprises a rocker and a sensing module, one end of the rocker is movably mounted on the shell, the other end of the rocker is formed with the mounting groove, a wire channel is formed in the rocker and communicated with the mounting groove, the detection piece is electrically connected with the control module through a lead wire, and the lead wire is arranged in the wire channel.
[0021] The sensing module is arranged in the shell and electrically connected with the control module, and the sensing module is used for detecting the swinging direction of the rocker and generating the movement signal.
[0022] In some embodiments of the utility model, the fundus observation device further comprises a support frame, the support frame is installed on the top surface of the base and is arranged on one side of the shell opposite to the adjusting mechanism.
[0023] Through the above scheme, when the roller rotates, the detection module generates a detection signal, and the control module sends an instruction signal to the focusing module after receiving the detection signal, so as to adjust the focal length of the fundus observation mechanism. During operation, the operator can control the rotation angle of the roller and thus control the focal length adjustment amount of the focusing module, so that the focusing accuracy is better and the efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor.
[0025] Figure 1 The structure schematic view of the embodiment of the fundus observation device provided by the utility model is shown in the figure.
[0026] Figure 2 The sectional view of the embodiment of the fundus observation device provided by the utility model is shown in the figure.
[0027] Figure 3 For Figure 2 The local enlarged view of A in the figure.
[0028] EXPLANATION OF DRAWINGS:
[0029] 100, fundus observation device, 11, base, 12, shell, 13, fundus observation mechanism, 131, focusing module, 132, control module, 14, adjusting mechanism, 1401, mounting groove, 141, roller, 1411, wheel body, 1412, axle, 1413, assembly groove, 1414, anti-skid pattern, 142, detection module, 1421, magnetic part, 1422, detection part, 143, movement adjusting assembly, 1431, rocker, 1432, sensing module, 1433, wiring channel, 15, driving mechanism, 16, support frame.
[0030] The realization, functional characteristics and advantages of the utility model will be further explained by combining with the embodiments and referring to the drawings. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.
[0032] It should be noted that if the embodiments of the present utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.
[0033] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution, or B solution, or A and B solution. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present utility model.
[0034] Please refer to Figures 1 to 3 The utility model provides an eye fundus observation device 100, including base 11, shell 12, eye fundus observation mechanism 13 and adjusting mechanism 14, wherein, shell 12 movable installation is in the top surface of base 11, eye fundus observation mechanism 13 installs in shell 12, and eye fundus observation mechanism 13 includes focusing module 131 and control module 132, and focusing module 131 is used for adjusting focal length, and control module 132 is electrically connected with focusing module 131, adjusting mechanism 14 installs in shell 12, and adjusting mechanism 14 includes gyro wheel 141 and detection module 142, and gyro wheel 141 is at least partially exposed outside shell 12, and detection module 142 is electrically connected with control module 132, and detection module 142 is used for detecting the rotation angle of gyro wheel 141 and generates detection signal, and control module 132 is used for receiving detection signal and sending instruction signal to focusing module 131 to adjust the focal length of eye fundus observation mechanism 13.
[0035] Through the above scheme, when the roller 141 rotates, the detection module 142 generates a detection signal, and the control module 132 sends an instruction signal to the focusing module 131 after receiving the detection signal, so as to adjust the focal length of the fundus observation mechanism 13. In the operation process, the operator can control the rotation angle of the roller 141 and further control the focal length adjustment amount of the focusing module 131, so that the focusing accuracy is better and the efficiency is higher.
[0036] The focusing module 131 is mainly used for automatically adjusting the distance between the lens of the optometry machine and the measured eye, so as to ensure clear imaging and accurately measure the refractive power of the eye. The focusing module 131 generally includes a focusing driver and a lens assembly, and the focusing driver is used to adjust the lens position to realize focusing.
[0037] In some embodiments of the utility model, the fundus observation device 100 further includes a driving mechanism 15, the driving mechanism 15 is installed on the shell 12 and is connected with the machine base 11, and is used to drive the shell 12 to move relative to the machine base 11, and the driving mechanism 15 is electrically connected with the control module 132; the adjusting mechanism 14 further includes a moving adjusting assembly 143, the roller 141 is installed on the moving adjusting assembly 143, and the moving adjusting assembly 143 is electrically connected with the control module 132, the moving adjusting assembly 143 is controlled by the user and generates a moving signal, and the control module 132 is used to send a control signal to the driving mechanism 15 when receiving the moving signal, so as to adjust the position of the shell 12 relative to the machine base 11.
[0038] Through the above scheme, the driving mechanism 15 is installed on the shell 12 and connected with the machine base 11, and is used to drive the shell 12 to move relative to the machine base 11. This design makes the whole fundus observation mechanism 13 can move along the machine base 11 to adjust the distance with the patient's eye, ensure the clarity of imaging and the accuracy of focusing. The operator can adjust the position of the shell 12 relative to the machine base 11 by controlling the moving adjusting assembly 143, and control the focal length adjustment amount of the focusing module 131 by the roller 141, which further facilitates the operator to operate the inspection, and is beneficial to improve the detection efficiency.
[0039] The above driving mechanism 15 can adopt a motor or a pneumatic cylinder as a power source, and directly or through a gear, a crank slider mechanism or the like to drive the shell 12, which is not specifically limited here.
[0040] In some embodiments of the utility model, detection module 142 includes magnetic piece 1421 and detection piece 1422, mobile adjustment assembly 143 is equipped with installation groove 1401, gyro wheel 141 is rotationally installed in installation groove 1401, and part is exposed outside installation groove 1401;Magnetic piece 1421 is installed in gyro wheel 141, detection piece 1422 is installed in the slot wall of installation groove 1401, and is electrically connected with control module 132, and detection piece 1422 generates detection signal when the surrounding magnetic field changes.Such when magnetic piece 1421 is rotated under the driving of gyro wheel 141, detection module 142 can generate detection signal in real time, and it is passed to control module 132, make the response of focal length adjustment and shell 12 movement more rapid, improve the fluency of operation.And by using magnetic piece 1421, the dependence on complex mechanical structure is reduced, the design of overall device is more simple, and the failure rate and maintenance cost are reduced.
[0041] In some embodiments of the utility model, detection piece 1422 is hall element.When gyro wheel 141 rotates, hall element generates voltage difference and outputs as detection signal.
[0042] In some other embodiments of the utility model, detection piece 1422 is dynamic electromotive force wire.Such when gyro wheel 141 rotates, dynamic electromotive force wire moves relative to magnetic piece 1421, will cause dynamic electromotive force wire to cut magnetic force line in magnetic field, electromotive force is generated in dynamic electromotive force wire, and there is linear relationship between dynamic electromotive force and gyro wheel 141 rotation angle, so that control module 132 can obtain a linear detection signal, and control module 132 is convenient for accurate focal length adjustment.
[0043] The specific implementation of magnetic piece 1421 has multiple, in some embodiments of the utility model, gyro wheel 141 includes wheel body 1411 and wheel shaft 1412 connected, both ends of wheel shaft 1412 are rotationally installed on the opposite two sides of the slot wall of installation groove 1401, and wheel body 1411 part is exposed outside installation groove 1401;Magnetic piece 1421 is magnetic ring, and the magnetic ring is installed in wheel body 1411.
[0044] In some embodiments of the utility model, one side of wheel body 1411 is provided with assembly groove 1413 around wheel shaft 1412, and the magnetic ring is assembled in assembly groove 1413.Such that the magnetic ring can be stably installed on gyro wheel 141, and the replacement and maintenance of the magnetic ring are facilitated.
[0045] In some embodiments of the utility model, the outer circumferential surface of wheel body 1411 is provided with anti-skid line 1414.Effectively increase the friction between gyro wheel 141 and the fingers of operator, so that the operator can better control gyro wheel 141 when adjusting focal length, improve the accuracy and comfort of operation.
[0046] In some embodiments of the utility model, mobile adjustment assembly 143 includes rocker 1431 and induction module 1432, one end of rocker 1431 is movably installed in shell 12, the other end of rocker 1431 is formed with installation slot 1401, the rocker 1431 is opened with the wiring channel 1433 that communicates with installation slot 1401, detection piece 1422 is electrically connected with control module 132 by wire, and the wire is arranged in the wiring channel 1433;Induction module 1432 is located in shell 12, and is electrically connected with control module 132, and induction module 1432 is used to detect the swing direction of rocker 1431 and generates movement signal.Protected the wire from the damage of outside, also made the inside of shell 12 more neat. Operator can directly control the position of fundus observation mechanism 13 through rocker 1431, improve the convenience and flexibility of operation.
[0047] The above-mentioned induction module 1432 can be integrated with the control module 132 on the same circuit board, and the induction module 1432 can be a plurality of micro switches arranged around the rocker 1431. When the rocker 1431 swings, the corresponding micro switch is pressed and triggered by the rocker 1431, thereby generating a movement signal.
[0048] In some embodiments of the utility model, the fundus observation device 100 further comprises a support frame 16, which is installed on the top surface of the base 11 and is spaced apart from the side of the shell 12 opposite the adjustment mechanism 14. It provides a user's face support point, increases the stability of the user's head during use, especially during long-term fundus examination, which can reduce the impact of relative movement of the user's head.
[0049] The above-mentioned is only the exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by the utility model specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.
Claims
1. An ocular fundus observation apparatus (100) characterized by comprising: The device comprises: a base (11); a housing (12) movably mounted on the top surface of the base (11); a fundus observation mechanism (13) mounted in the housing (12), the fundus observation mechanism (13) comprising a focusing module (131) for adjusting the focal length and a control module (132) electrically connected to the focusing module (131); and an adjusting mechanism (14) mounted on the housing (12), the adjusting mechanism (14) comprising a roller (141) at least partially exposed outside the housing and a detection module (142) electrically connected to the control module (132), the detection module (142) being configured to detect the rotation angle of the roller (141) and generate a detection signal, and the control module (132) being configured to receive the detection signal and send an instruction signal to the focusing module (131) to adjust the focal length of the fundus observation mechanism (13).
2. The fundus observation apparatus (100) according to claim 1, characterized by, The device further comprises a driving mechanism (15) mounted on the housing (12) and connected to the base (11) to drive the housing (12) to move relative to the base (11), the driving mechanism (15) being electrically connected to the control module (132); The adjusting mechanism (14) further comprises a movement adjusting assembly (143) to which the roller (141) is mounted, the movement adjusting assembly (143) being electrically connected to the control module (132), the movement adjusting assembly being configured to be controlled by a user and generate a movement signal, and the control module (132) being configured to receive the movement signal and send a control signal to the driving mechanism (15) to adjust the position of the housing (12) relative to the base (11).
3. The fundus observation apparatus (100) according to claim 2, characterized by, The detection module (142) comprises a magnetic element (1421) and a detection element (1422), and the movement adjusting assembly (143) is provided with a mounting groove (1401) in which the roller (141) is rotatably mounted and partially exposed outside the mounting groove (1401); The magnetic element (1421) is mounted on the roller (141), and the detection element (1422) is mounted on the groove wall of the mounting groove (1401) and electrically connected to the control module (132), the detection element (1422) being configured to generate the detection signal when the surrounding magnetic field changes.
4. The fundus observation apparatus (100) according to claim 3, characterized by The detection element (1422) is a Hall element; or The detection element (1422) is a moving electromotive force wire.
5. The fundus observation apparatus (100) according to claim 3, characterized by The roller (141) comprises a wheel body (1411) and a wheel shaft (1412) connected to each other, both ends of the wheel shaft (1412) being rotatably mounted on the opposite groove walls of the mounting groove (1401), and the wheel body (1411) being partially exposed outside the mounting groove (1401); The magnetic element (1421) is a magnetic ring mounted on the wheel body (1411).
6. The fundus observation apparatus (100) according to claim 5, characterized by The wheel body (1411) is provided with an assembly groove (1413) around the wheel shaft (1412) on one side in the axial direction, and the magnetic ring is assembled in the assembly groove (1413).
7. The fundus observation apparatus (100) according to claim 6, characterized by The outer circumferential surface of the wheel body (1411) is provided with anti-skid lines (1414).
8. The fundus observation apparatus (100) according to claim 3, characterized by The movement adjusting assembly (143) comprises a rocker (1431) and a sensing module (1432), one end of the rocker (1431) is movably mounted on the shell (12), the other end of the rocker (1431) is formed with the mounting groove (1401), a wire channel (1433) in communication with the mounting groove (1401) is formed in the rocker (1431), the detection member (1422) is electrically connected with the control module (132) through a wire, and the wire is arranged in the wire channel (1433). The sensing module (1432) is arranged in the shell (12) and is electrically connected with the control module (132), and the sensing module (1432) is used for detecting the swing direction of the rocker (1431) and generating the movement signal.
9. The fundus observation apparatus (100) according to any one of claims 1 to 8, characterized by, The fundus observation device (100) further comprises a supporting frame (16), which is mounted on the top surface of the machine base (11) and is arranged on the side of the shell (12) opposite to the adjusting mechanism.