Swing type slit lamp scanning structure

Abstract

The utility model discloses a swing type slit lamp scanning structure which comprises a motor, a swing arm, a platform and a slit lamp assembly, one end of the swing arm is connected with the motor, the other end of the swing arm is connected with the slit lamp assembly, the platform is provided with a first slideway corresponding to the slit lamp assembly, and the swing arm is provided with a second slideway corresponding to the slit lamp assembly. The first slide way and the second slide way are arranged in an up-down penetrating mode, the slit lamp assembly is in sliding fit with the first slide way and the second slide way, and the motor drives the swing arm to swing so as to drive the slit lamp assembly to slide in the first slide way. Operation is convenient, sliding is smooth, and the detection result is not prone to being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of slit lamps, in particular to a swinging slit lamp scanning structure. Background Art

[0002] The eye is a very important organ in the human body. Many eye diseases may not have obvious symptoms in the early stage, but subtle lesions can be found through detailed eye examination. The slit lamp scanner can perform high-resolution imaging and observation of the front structures of the eye, such as the cornea, conjunctiva, iris, and lens, to help doctors timely detect various eye diseases, such as keratitis, conjunctivitis, cataracts, glaucoma, etc., and provide important basis for early diagnosis and treatment of diseases. From the perspective of optical technology, the existing slit lamp uses the Tyndall effect to illuminate the human eye from a certain angle through a high-brightness slit light band to form a living transparent tissue optical section, simulating a "light knife" to cut the eyeball tissue for observation, and at the same time cooperate with a binocular microscope to magnify the eyeball tissue, so that doctors can clearly see the internal structure of the eye and the details of the lesions;

[0003] Since each person's eye condition is different, the existing fixed slit lamp detector can no longer meet the needs. The slit lamp has high requirements for the reflection of light in the environment during detection. The existing fixed slit lamp detector requires an ophthalmologist to manually move the position of the slit lamp detector to scan the human eye. However, due to the hand-held movement, jitter is inevitable, and the jitter is likely to affect the stability of the light and thus affect the scanning results. In addition, the hand-held movement has low smoothness and poor stability. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a swinging slit lamp scanning structure to solve the problems of unstable hand-held movement, low movement smoothness and inconvenient operation of the slit lamp proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a swinging slit lamp scanning structure, comprising a motor, a swing arm, a platform and a slit lamp assembly, wherein one end of the swing arm is connected to the motor, and the other end is connected to the slit lamp assembly, a first slide is arranged on the platform corresponding to the position of the slit lamp assembly, and a second slide is arranged on the swing arm corresponding to the position of the slit lamp assembly, the first slide and the second slide are arranged to be connected up and down, the slit lamp assembly is slidably matched with the first slide and the second slide respectively, and the motor drives the swing arm to swing to drive the slit lamp assembly to slide in the first slide.

[0006] As a further improvement of the present invention, the slit lamp assembly includes a lamp body, an upper top plate arranged corresponding to the upper position of the lamp body, and a lower bottom plate arranged corresponding to the lower position of the lamp body, a limiting ring for clamping with the platform is formed between the upper top plate and the lower bottom plate, and at least one movable part is arranged between the platform and the slit lamp assembly.

[0007] As a further improvement of the present invention, the first slideway is an arc-shaped slideway, and the inner walls on both sides of the arc-shaped slideway are arranged at equal distances in the length direction.

[0008] As a further improvement of the utility model, the movable component is a rolling bearing, and a positioning column for positioning the bearing is provided on the upper end surface of the lower base plate corresponding to the position of the rolling bearing, and the rolling bearing is sleeved on the positioning column, and the rolling bearing is abutted against and slidably matched with the inner wall of the first slide.

[0009] As a further improvement of the utility model, a positioning column is respectively arranged on the upper end surface of the lower base plate corresponding to the four directions of the lamp body, and each positioning column is provided with a rolling bearing, each of the rolling bearings is abutted against the inner circumferential wall of the arc slide and can slide with the arc slide.

[0010] As a further improvement of the present invention, both ends of the second slideway are provided with arc-shaped walls for contacting the lamp body.

[0011] As a further improvement of the present invention, at least one zero position sensor is provided at the swing end position of the platform corresponding to the swing arm, and the zero position sensor can cooperate with the swing arm for sensing.

[0012] Compared with the prior art, the utility model provides a swinging slit lamp scanning structure, which has the following beneficial effects: the slit lamp scanning structure of the present scheme adopts a motor-driven swing arm, and then drives the slit lamp to slide smoothly on the platform through the swing arm so that the slit lamp can scan and inspect the human eye. The present scheme adopts the first slide and the second slide to limit the sliding position of the slit lamp. The double slide can make the sliding position of the slit lamp more accurate and the sliding more stable, and it is not easy to affect the detection result. The swing path of the swing arm in the present scheme is different from the path of the first slide. The double slide can be suitable for more slit lamps arranged in different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 A three-dimensional diagram of a slit lamp assembly of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the platform of the utility model.

[0016] Figure numerals: 1, motor; 2, swing arm; 3, platform; 4, slit lamp assembly; 5, zero position sensor; 21, second slide; 211, arc wall; 31, first slide; 41, lamp body; 42, upper top plate; 43, lower bottom plate; 44, limit ring; 45, rolling bearing; 46, positioning column. DETAILED DESCRIPTION

[0017] An embodiment of the utility model is shown in the figure. To achieve the above-mentioned purpose, the utility model provides a swinging slit lamp scanning structure, including a motor 1, a swing arm 2, a platform 3 and a slit lamp assembly 4. One end of the swing arm 2 is connected to the motor 1, and the other end is connected to the slit lamp assembly 4. The platform 3 is provided with a first slide 31 corresponding to the position of the slit lamp assembly 4, and the swing arm 2 is provided with a second slide 21 corresponding to the position of the slit lamp assembly 4. The first slide 31 and the second slide 21 are arranged to be connected up and down. The slit lamp assembly 4 is slidably matched with the first slide 31 and the second slide 21 respectively. The motor 1 drives the swing arm 2 to swing to drive the slit lamp assembly 4 to slide in the first slide 31.

[0018] When the present scheme is implemented, the motor 1 is first connected to the swing arm 2. The present scheme preferably sets the motor 1 at the lower end of the platform 3, and the swing arm 2 is set at the upper end of the platform 3. The motor 1 passes through the platform 3 and is connected to the swing arm 2 to drive the swing arm 2 to swing. Thereafter, the technicians in this field connect the slit lamp assembly 4 to the swing arm 2 and the platform 3. The present scheme adopts a first slide 31 set on the platform 3, and a second slide 21 set on the swing arm 2. The slit lamp assembly 4 passes through the first slide 31 and the second slide 21 and is partially exposed on the upper end surface of the swing arm 2. The exposed part is the position of the lamp head for emitting light from the slit lamp. After the slit lamp assembly 4 is installed, the technicians in this field need to debug the light irradiation angle of the slit lamp assembly 4. When started, the motor 1 drives the swing arm 2 to swing, and the swing arm 2 can push the slit lamp assembly 4 to move. At this time, the slit lamp assembly 4 can move in the second slide 21 on the swing arm 2 and also move in the first slide 31 on the platform 3. The sliding position of the slit lamp is limited by the cooperation of the first slide 31 and the second slide 21 to prevent the sliding position of the slit lamp from deviating from the light irradiation position after debugging. The dual-slide motor 1 driving mode makes the slit lamp assembly 4 slide more smoothly and stably, and it is not easy for the light to be affected by the shaking of the slit lamp to cause deviations in the detection results. It has a simple structure and is easy to operate. Compared with the existing fixed slit lamp detectors and handheld slit lamp detectors, it is more practical and more convenient to use.

[0019] The slit lamp assembly 4 includes a lamp body 41, an upper top plate 42 arranged at an upper position corresponding to the lamp body 41, and a lower bottom plate 43 arranged at a lower position corresponding to the lamp body 41, a limiting ring 44 for clamping with the platform 3 is formed between the upper top plate 42 and the lower bottom plate 43, and at least one movable part is arranged between the platform 3 and the slit lamp assembly 4.

[0020] When the present scheme is implemented, an upper top plate 42 and a lower bottom plate 43 are respectively arranged at the upper and lower parts of the lamp body 41. The upper part of the lamp body 41 in the present scheme refers to the position near the upper end of the lamp body 41 where light is emitted, and the lower part refers to the position near the lower end of the lamp body 41. The upper top plate 42 and the lower bottom plate 43 can be arranged by being integrally formed with the lamp body 41, or they can be later sleeved on the lamp body 41 and positioned so that a limiting ring buckle is formed between the upper top plate 42 and the lower bottom plate 43. The platform 3 can be clamped in the limiting ring mouth 44 and is not easy to fall out. The clamping effect is good, which improves the sliding stability of the lamp body 41. The present scheme also sets at least one movable component between the platform 3 and the slit lamp assembly 4. This movable component can assist the slit lamp assembly 4 in sliding on the platform 3, making its sliding more stable. This movable component can be a rolling component, a sliding component, etc., which are used to make the slit lamp move more smoothly and stably on the platform 3. After installing the slit lamp assembly 4, technicians in this field need to debug the matching relationship between it and the platform 3. The structure is simple and the operation is convenient.

[0021] The first slideway 31 is a waist-shaped slideway, and the inner walls on both sides of the waist-shaped slideway in the length direction are arranged at equal distances.

[0022] When the present scheme is implemented, the first slide 31 is an arc-shaped slide, and the waist-shaped slide is composed of two parallel arc segments and two semicircles connecting the two arc segments. It has the characteristics of smoothness and convenience for objects to slide. The spacing between the two arc segments of the arc-shaped slide in the present scheme is the same, so when the rolling bearing 45 slides in the waist-shaped slide, it is more stable and will not slip out of the arc-shaped slide, thereby making the slit lamp smoother and more stable when moving, and making the detection result more accurate. In other schemes, if the spacing between the two arc segments of the waist-shaped slide is different, technical personnel in this field can also compensate for the different spacing between the two arc segments by setting a spring at the position of the rolling bearing 45, because when the rolling bearing 45 moves to a position with a longer spacing between the two arc segments, the spring can push the rolling bearing 45 to make it against the inner wall of the waist-shaped slide, otherwise the rolling bearing 45 can squeeze the spring to shrink it and meet the shorter spacing.

[0023] The movable component is a rolling bearing 45. A positioning column 46 for positioning the bearing is provided at the upper end surface of the lower base plate 43 corresponding to the position of the rolling bearing 45. The rolling bearing 45 is sleeved on the positioning column 46. The rolling bearing 45 abuts against the inner wall of the first slideway 31 and slides with it.

[0024] When the present solution is implemented, the positioning column 46 is first set, and then the rolling bearing 45 is positioned on the positioning column 46, so that the rolling bearing 45 will not separate from the positioning column 46 when rolling, and the rolling is more stable and not easy to separate from the slide. The present solution can use one or more positioning columns 46 and rolling bearings 45, but the present solution preferably has one positioning column 46 corresponding to one rolling bearing 45.

[0025] A positioning column 46 is respectively provided on the upper end surface of the lower base plate 43 in four directions corresponding to the lamp body 41, and each positioning column 46 is provided with a rolling bearing 45, and each rolling bearing 45 abuts against the inner peripheral wall of the arc slide and can slide with the arc slide.

[0026] When the present solution is implemented, four positioning posts 46 and four rolling bearings 45 arranged on the positioning posts 46 are provided. The four rolling bearings 45 are respectively abutted against the inner wall of the waist-shaped slide, so that the slit lamp can be supported all around. Compared with a single rolling bearing 45, the four rolling bearings 45 are more stable when moving.

[0027] Both ends of the second slideway 21 are provided with arc-shaped walls 211 for contacting the lamp body 41 .

[0028] When the present scheme is implemented, curved walls 211 are adopted at both ends of the second slide 21. Since the outer peripheral wall of the slit lamp in the present scheme is arranged in an arc shape, the curved wall 211 is more adapted to the outer peripheral wall of the slit lamp in the present scheme. The slit lamp moves more smoothly in the second slide 21 and contacts the second slide 21 more closely. It is not easy to shake due to the gap between the slit lamp and the slide, thereby improving the stability of the light.

[0029] The platform 3 is provided with at least one zero position sensor 5 corresponding to the swing end position of the swing arm 2 , and the zero position sensor 5 can cooperate with the swing arm 2 for sensing.

[0030] When the present scheme is implemented, a zero position sensor 5 is set to sense whether the swing arm 2 has swung to the extreme position in the present scheme. The extreme position in the present scheme refers to the end position at either end of the first slide 31 driven by the swing arm 2. At this time, the swing arm 2 can cooperate with the zero position sensor 5 for sensing. The present scheme preferably sets a zero position sensor 5. In other schemes, those skilled in the art may also respectively set a zero position sensor 5 at both ends of the first slide 31 to sense whether the swing arm 2 has swung into place, so as to avoid excessive swinging of the swing arm 2 so that the slit lamp hits the slide and causes damage. The structure is simple and more stable and safe when used.

[0031] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A swinging slit lamp scanning structure, characterized in that: The invention comprises a motor, a swing arm, a platform and a slit lamp assembly, wherein one end of the swing arm is connected to the motor, and the other end is connected to the slit lamp assembly, a first slide is arranged on the platform corresponding to the position of the slit lamp assembly, and a second slide is arranged on the swing arm corresponding to the position of the slit lamp assembly, the first slide and the second slide are arranged to be vertically connected, the slit lamp assembly is slidably matched with the first slide and the second slide respectively, and the motor drives the swing arm to swing to drive the slit lamp assembly to slide in the first slide.

2. The swinging slit lamp scanning structure according to claim 1, characterized in that: The slit lamp assembly includes a lamp body, an upper top plate arranged at a position corresponding to the upper part of the lamp body, and a lower bottom plate arranged at a position corresponding to the lower part of the lamp body. A limiting ring for clamping with a platform is formed between the upper top plate and the lower bottom plate. At least one movable component is arranged between the platform and the slit lamp assembly.

3. The swinging slit lamp scanning structure according to claim 2, characterized in that: The first slideway is an arc-shaped slideway, and inner walls on both sides of the arc-shaped slideway are arranged at equal distances in the length direction.

4. The swinging slit lamp scanning structure according to claim 2, characterized in that: The movable component is a rolling bearing, and a positioning column for positioning the bearing is arranged at the upper end surface of the lower base plate corresponding to the position of the rolling bearing. The rolling bearing is sleeved on the positioning column, and the rolling bearing abuts against and slides with the inner wall of the first slideway.

5. The swinging slit lamp scanning structure according to claim 3 or 4, characterized in that: A positioning column is respectively arranged on the upper end surface of the lower base plate corresponding to four directions of the lamp body, and each positioning column is provided with a rolling bearing, and each rolling bearing abuts against the inner peripheral wall of the arc slide and can slide with the arc slide.

6. The swinging slit lamp scanning structure according to claim 1, 2, 3 or 4, characterized in that: Both ends of the second slideway are provided with arc-shaped walls for contacting the lamp body.

7. The swinging slit lamp scanning structure according to claim 1, 2, 3 or 4, characterized in that: The platform is provided with at least one zero position sensor at the swing end position corresponding to the swing arm, and the zero position sensor can cooperate with the swing arm for sensing.

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