Slit lamp scanning structure of handheld eye detection device

Abstract

The utility model discloses a slit lamp scanning structure of a handheld eye detection device, which comprises a shell, a first platform, a second platform and a third platform fixedly connected with the shell. A sliding mechanism for driving the second platform to move towards the left or right direction of the human eye part on the third platform is arranged between the second platform and the third platform corresponding to the left or right direction of the human eye part; a sliding mechanism used for driving the first platform to move close to or away from the human eyes on the second platform is arranged between the first platform and the second platform corresponding to the front-back direction of the human eyes, and a fundus camera and a slit lamp are arranged on the first platform. The second platform and the third platform move to drive the fundus camera and the slit lamp on the first platform to scan the human eyes in the left or right direction, the first platform and the second platform move to drive the fundus camera and the slit lamp on the first platform to scan the human eyes in the approaching or leaving direction, the scanning range is wide, and stability is good. And shaking is not easy to generate during scanning.

Description

Technical Field

[0001] The utility model relates to the technical field of slit lamp scanning structures, in particular to a slit lamp scanning structure of a handheld eye detection device. Background Art

[0002] Slit lamp detection equipment is one of the important devices in ophthalmology. It uses the principle of optical sectioning to clearly observe subtle lesions in the anterior segment of the eye, such as the eyelid, cornea, conjunctiva, and sclera. However, traditional equipment is bulky and complicated to operate, and patients need to be examined in a fixed position. Although existing handheld eye detection devices have improved in portability, the scanning structure mostly adopts a single-direction movement design, and the detection position needs to be adjusted manually. If a multi-directional movement structure is required, it is difficult to install in a small space, and it is difficult to achieve automated large-scale scanning of the human eye, resulting in low detection efficiency and easy missed detection. In addition, the sliding mechanism of some devices has poor stability and is prone to jitter during the scanning process, which affects the quality of image acquisition and cannot meet the accuracy requirements of clinical diagnosis. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a slit lamp scanning structure of a handheld eye detection device to solve the problems of small scanning range, large equipment size and unstable scanning process proposed in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a slit lamp scanning structure of a handheld eye detection device, comprising a shell, a first platform, a second platform and a third platform, the third platform being fixedly connected to the shell, a sliding mechanism for driving the second platform to move toward the left or right direction of the human eye on the third platform is provided between the second platform and the third platform corresponding to the left or right direction of the human eye, a sliding mechanism for driving the first platform to move toward or away from the human eye on the second platform is provided between the first platform and the second platform corresponding to the front and back directions of the human eye, a fundus camera and a slit lamp are provided on the first platform, the second platform and the third platform move to drive the fundus camera and the slit lamp on the first platform to scan the left or right direction of the human eye, and the first platform and the second platform move to drive the fundus camera and the slit lamp on the first platform to scan the direction close to or away from the human eye.

[0005] As a further improvement of the present invention, each group of the sliding mechanisms includes at least one slider, a motor, a limit column and a transmission wheel. The transmission wheel is placed between the motor and the platform adjacent to it. The motor drives the transmission wheel to rotate to drive the platform adjacent to it to move. A slider is provided between the two adjacent platforms. The slider and the adjacent platform slide together. The slider between the first platform and the second platform forms a left or right limit with the platform, and the slider between the second platform and the third platform forms a front and rear limit with the platform.

[0006] As a further improvement of the present invention, each group of the sliding mechanisms also includes a sliding seat for cooperating with the slider, the sliding seat is placed between the slider and the platform, a limiting slide rail is provided on the sliding seat, and a sliding edge for cooperating with the limiting slide rail is provided on the slider, and the sliding edge is arranged along the length direction of the slider.

[0007] As a further improvement of the present invention, the second platform and the third platform are both provided with a groove for accommodating a slide seat, and the slide seat is plugged into and fitted in the groove.

[0008] As a further improvement of the present invention, a limiting column is provided on the second platform and the third platform respectively corresponding to the position of the slide seat, and the limiting column can limit the axial sliding of the slider along the axis direction of the slide seat.

[0009] As a further improvement of the present invention, the limiting slide rail is provided with an upper arc-shaped wall extending upwardly and obliquely toward the side direction of the slide seat, and a lower arc-shaped wall extending downwardly and obliquely, and an arc-shaped base is provided between the sliding edge and the slider. After the sliding edge and the limiting slide rail are inserted into place, the arc-shaped base can be against the upper arc-shaped wall and the lower arc-shaped wall.

[0010] As a further improvement of the present invention, a waist-shaped groove is provided on the second platform and the third platform corresponding to the position of the transmission wheel, and a cylindrical sliding rod is provided on the transmission wheel corresponding to the waist-shaped groove position.

[0011] Compared with the prior art, the present invention provides a slit lamp scanning structure of a handheld eye detection device, which has the following beneficial effects: by arranging a sliding mechanism in the left or right direction between the third platform and the second platform, and a sliding mechanism in the front and back direction between the second platform and the first platform, and the fundus camera and the slit lamp are arranged on the first platform, this design enables the fundus camera and the slit lamp to flexibly realize horizontal scanning in the left or right direction and longitudinal scanning adjustment in the approaching or moving away direction of the human eye according to the detection requirements, effectively covering the eye area, avoiding the detection blind spots of traditional fixed structures, and significantly improving the comprehensiveness and accuracy of eye detection. Doctors can complete the different position adjustments of the internal scanning structure through single-handed operation, which is more convenient to operate, improves clinical detection efficiency, shortens detection time, and significantly reduces the patient's discomfort caused by the fixed position of the equipment during the detection process and the anxiety caused to the patient by the long detection time, thereby improving the comfort and safety of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 This is a three-dimensional diagram of the internal structure of the utility model;

[0014] Figure 3 This is a partial structural exploded view of the utility model;

[0015] Figure 4 This is the attached drawing of the utility model specification Figure 3 A magnified view of the structure of part A.

[0016] Figure numerals: 1. Shell; 2. First platform; 3. Second platform; 4. Third platform; 5. Sliding mechanism; 6. Fundus camera; 7. Slit lamp; 8. Groove; 9. Waist groove; 51. Slider; 52. Motor; 53. Limiting column; 54. Transmission wheel; 55. Sliding seat; 511. Sliding edge; 551. Limiting slide rail; 541. Cylindrical slide rod; 5111. Arc base; 5511. Upper arc wall; 5512. Lower arc wall. DETAILED DESCRIPTION

[0017] An embodiment of the present invention is shown in the figure. To achieve the above-mentioned purpose, the present invention provides a slit lamp 7 scanning structure of a handheld eye detection device, comprising a housing 1, a first platform 2, a second platform 3 and a third platform 4. The third platform 4 is fixedly connected to the housing 1. A sliding mechanism 5 is provided between the second platform 3 and the third platform 4, corresponding to the left or right direction of the human eye, for driving the second platform 3 to move on the third platform 4 toward the left or right direction of the human eye. A sliding mechanism 5 is provided between the first platform 2 and the second platform 3, corresponding to the front-back direction of the human eye, for driving the first platform 2 to move on the second platform 3 toward or away from the human eye. A fundus camera 6 and a slit lamp 7 are provided on the first platform 2. The second platform 3 and the third platform 4 move to drive the fundus camera 6 and the slit lamp 7 on the first platform 2 to scan the left or right direction of the human eye. The first platform 2 and the second platform 3 move to drive the fundus camera 6 and the slit lamp 7 on the first platform 2 to scan the human eye toward or away from the human eye.

[0018] During implementation of this solution, the housing 1 is constructed of lightweight engineering materials, providing a stable outer shell for the entire structure and facilitating handheld operation by medical personnel. A third platform 4 is screwed to the bottom of the housing 1's inner cavity, serving as the foundational support for the entire sliding mechanism 5. To achieve left-right scanning, a sliding mechanism 5 consisting of a linear guide and a slider 51 can be installed between the second and third platforms 3 and 4. The slider 51 is secured to the bottom of the second platform 3 and slidably engages the linear guide on the third platform 4. When a left-right scan of the eye is required, medical personnel manually push the second platform 3, or a small motor 52 is installed on the side of the second platform 3 to drive the slider 51, enabling the second platform 3 to move smoothly along the left / right direction of the eye on the third platform 4, thereby driving the fundus camera 6 and slit lamp 7 on the first platform 2 to scan the left and right areas of the eye. For front-to-back scanning, a sliding mechanism 5 consisting of a linear guide and a slider 51 can also be used between the first and second platforms 2 and 3. The slider 51 at the bottom of the first platform 2 cooperates with the linear guide rail on the second platform 3. Medical staff can manually push the first platform 2 according to actual detection needs, or use the built-in micro-drive device to move the first platform 2 on the second platform 3 toward or away from the human eye, thereby driving the fundus camera 6 and the slit lamp 7 to scan different front and back positions of the human eye. In this solution, the sliding mechanism 5 between the first platform 2 and the second platform 3 and the sliding mechanism 5 between the second platform 3 and the third platform 4 are the same sliding mechanism 5, but the setting directions of the two sets of sliding mechanisms 5 are different. Those skilled in the art can change the sliding direction by changing the setting direction of the sliding mechanism 5.

[0019] As an improved specific embodiment, each group of the sliding mechanism 5 includes at least one slider 51, a motor 52, a limit column 53 and a transmission wheel 54. The transmission wheel 54 is placed between the motor 52 and the platform adjacent to it. The motor 52 drives the transmission wheel 54 to rotate to drive the platform adjacent to it to move. A slider 51 is provided between the two adjacent platforms. The slider 51 and the adjacent platform are slidably matched. The slider 51 between the first platform 2 and the second platform 3 forms a left or right limit with the platform, and the slider 51 between the second platform 3 and the third platform 4 forms a front and rear limit with the platform.

[0020] When this solution is implemented, for scanning in the left and right directions, the sliding mechanism 5 includes at least one slider 51, a motor 52, a limiting post 53, and a transmission wheel 54. The transmission wheel 54 is placed between the output shaft of the motor 52 and the third platform 4. When the motor 52 drives the transmission wheel 54 to rotate, the second platform 3 is driven to move in the left and right directions through the connection structure between the transmission wheel 54 and the second platform 3. A slider 51 is provided between the two adjacent platforms. The slider 51 is fixed to the bottom of the second platform 3 and slides with the third platform 4. Those skilled in the art can provide guide rails on the third platform 4. At the same time, the limiting post 53 is provided on the third platform 4 to limit the left and right movement range of the second platform 3 and prevent derailment.

[0021] In the front-to-back scanning, the sliding mechanism 5 between the first platform 2 and the second platform 3 also includes a slider 51, a motor 52, a limiting column 53 and a transmission wheel 54. The transmission wheel 54 is placed between the motor 52 and the second platform 3. When the motor 52 drives the transmission wheel 54 to rotate, it drives the first platform 2 to move in the front-to-back direction. The slider 51 at the bottom of the first platform 2 slides with the second platform 3. Those skilled in the art can set a guide rail on the second platform 3 and limit the range of front-to-back movement by the limiting column 53. The front-to-back sliding in this solution means moving toward or away from the position of the human eye, and the left or right movement means moving corresponding to the left / right eye of the human body. Medical staff can drive the transmission wheel 54 by controlling the forward and reverse rotation of the motor 52, thereby driving the first platform 2 and the second platform 3 to move in the front-to-back and left-to-right directions respectively, thereby realizing the scanning and detection of the human eye by the fundus camera 6 and the slit lamp 7.

[0022] As an improved specific embodiment, each group of the sliding mechanism 5 also includes a slide 55 for cooperating with the slider 51, the slide 55 is placed between the slider 51 and the platform, a limiting slide rail 551 is provided on the slide 55, and a sliding edge 511 for cooperating with the limiting slide rail 551 is provided on the slider 51, and the sliding edge 511 is arranged along the length direction of the slider 51; the limiting slide rail 551 is provided with an upper arc wall 5511 extending upwardly and obliquely toward the side direction of the slide 55, and a lower arc wall 5512 extending downwardly and obliquely, and an arc base 5111 is provided between the sliding edge 511 and the slider 51, and after the sliding edge 511 and the limiting slide rail 551 are inserted into place, the arc base 5111 can be against the upper arc wall 5511 and the lower arc wall 5512.

[0023] During implementation, a slide 55 is secured to the third platform 4. The upper and lower curved walls 5511 and 5512 of its limiting rails 551 extend upward and downward, respectively. The sliding edge 511 of the slider 51 at the bottom of the second platform 3 runs along its length. The curved base 5111 between the sliding edge 511 and the slider 51 abuts against the upper and lower curved walls 5512 after the sliding edge 511 is inserted into the limiting rails 551. Limiting posts 53 are provided on the third platform 4 to limit the left and right movement of the second platform 3.

[0024] The sliding mechanism 5 between the first platform 2 and the second platform 3 is similar. The transmission wheel 54 is placed between the motor 52 and the second platform 3. The motor 52 drives the transmission wheel 54 to move the first platform 2 back and forth. The slide 55 is fixed to the second platform 3. The sliding edge 511 of the slider 51 at the bottom of the first platform 2 cooperates with the limiting rail 551 of the slide 55. The curved base 5111 abuts against the upper and lower curved walls 5512, and the limiting column 53 controls the forward and backward travel. By controlling the forward and reverse rotation of the motor 52, medical staff can achieve full-scale scanning and detection of the eye by the fundus camera 6 and the slit lamp 7. The curved structure ensures smooth and non-stuck sliding. After installation, the contact between the slider 51 and the slide 55 is more stable, the fit is more tight, and it is less likely to shake.

[0025] As an improved specific embodiment, a groove 8 for accommodating a slide 55 is provided on each of the second platform 3 and the third platform 4 , and the slide 55 is plugged into and fitted in the groove 8 .

[0026] When implementing this solution, a groove 8 is set. Since the groove 8 is used to place the slide 55 and prevent the slide 55 from shifting on the platform, a groove 8 needs to be set corresponding to each slide 55 position. In this solution, grooves 8 are set on the second platform 3 and the third platform 4, which has a simple structure and is easy to install.

[0027] As an improved specific embodiment, a limiting column 53 is provided on the second platform 3 and the third platform 4 respectively corresponding to the position of the slide 55 , and the limiting column 53 can limit the axial sliding of the slider 51 along the axis direction of the slide 55 .

[0028] When implementing this solution, a limit column 53 is set to limit the movement of the platform to prevent the platform from deviating from the trajectory during movement. In this solution, the limit column 53 on the second platform 3 is set corresponding to the slide 55, that is, it is set towards or away from the position of the human eye; the limit column 53 on the third platform 4 is set towards the left or right direction of the human eye, and is used to limit the sliding of the slider 51. The limit column 53 of this solution is threadedly connected to the platform, and during installation, you only need to tighten the limit column 53 to the platform.

[0029] As an improved specific embodiment, a waist-shaped groove 9 is provided on the second platform 3 and the third platform 4 corresponding to the position of the transmission wheel 54, and a cylindrical slide rod 541 is provided on the transmission wheel 54 corresponding to the position of the waist-shaped groove 9.

[0030] When implementing this scheme, a waist-shaped groove 9 and a cylindrical slide 541 are set on the transmission wheel 54. After the transmission wheel 54 rotates, the cylindrical slide 541 can cooperate with the waist-shaped groove 9 to drive the platform to move. The arc-shaped parts on both sides of the waist-shaped groove 9 can be adapted to the outer peripheral wall of the cylindrical slide 541. In other schemes, those skilled in the art can also realize the sliding cooperation of the cylindrical slide with the waist-shaped groove by adopting a cam follower or a bolt and bearing combination.

[0031] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A slit lamp scanning structure of a handheld eye detection device, characterized in that: It includes a shell, a first platform, a second platform and a third platform, the third platform is fixedly connected to the shell, a sliding mechanism is provided between the second platform and the third platform corresponding to the left or right direction of the human eye, which is used to drive the second platform to move on the third platform toward the left or right direction of the human eye, a sliding mechanism is provided between the first platform and the second platform corresponding to the front and back directions of the human eye, which is used to drive the first platform to move on the second platform toward or away from the human eye, a fundus camera and a slit lamp are provided on the first platform, the second platform and the third platform are movable to drive the fundus camera and the slit lamp on the first platform to scan the left or right direction of the human eye, and the first platform and the second platform are movable to drive the fundus camera and the slit lamp on the first platform to scan the direction close to or away from the human eye.

2. The slit lamp scanning structure of the handheld eye detection device according to claim 1, characterized in that: Each group of the sliding mechanisms includes at least one slider, a motor, a limit column and a transmission wheel. The transmission wheel is placed between the motor and the platform adjacent to it. The motor drives the transmission wheel to rotate to drive the adjacent platform to move. A slider is provided between the two adjacent platforms. The slider and the adjacent platform slide together. The slider between the first platform and the second platform forms a left or right limit with the platform, and the slider between the second platform and the third platform forms a front and rear limit with the platform.

3. The slit lamp scanning structure of the handheld eye detection device according to claim 2, characterized in that: Each group of the sliding mechanisms also includes a sliding seat for cooperating with the slider, the sliding seat is placed between the slider and the platform, a limiting slide rail is set on the sliding seat, and a sliding edge for cooperating with the limiting slide rail is set on the slider, and the sliding edge is set along the length direction of the slider.

4. The slit lamp scanning structure of the handheld eye detection device according to claim 3, characterized in that: The second platform and the third platform are both provided with a groove for accommodating a slide seat, and the slide seat is plugged into and matched with the groove.

5. The slit lamp scanning structure of the handheld eye detection device according to claim 1, characterized in that: The second platform and the third platform are respectively provided with a limiting column corresponding to the position of the slide seat, and the limiting column can limit the axial sliding of the slider along the axis direction of the slide seat.

6. The slit lamp scanning structure of the handheld eye detection device according to claim 3, characterized in that: The limiting slide rail is provided with an upper arc-shaped wall extending upwardly and obliquely toward the side direction of the slide seat, and a lower arc-shaped wall extending downwardly and obliquely. There is an arc-shaped base between the sliding edge and the slider. After the sliding edge and the limiting slide rail are inserted into place, the arc-shaped base can be against the upper arc-shaped wall and the lower arc-shaped wall.

7. The slit lamp scanning structure of the handheld eye detection device according to claim 2, 3, 4 or 5, characterized in that: The second platform and the third platform are both provided with a waist-shaped groove corresponding to the position of the transmission wheel, and the transmission wheel is provided with a cylindrical sliding rod at the position corresponding to the waist-shaped groove.

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