CN215017201U - Cornea measuring device - Google Patents
Cornea measuring device Download PDFInfo
- Publication number
- CN215017201U CN215017201U CN202120520980.3U CN202120520980U CN215017201U CN 215017201 U CN215017201 U CN 215017201U CN 202120520980 U CN202120520980 U CN 202120520980U CN 215017201 U CN215017201 U CN 215017201U
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- Prior art keywords
- slit lamp
- shooting unit
- imaging terminal
- camera
- microscopic imaging
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- 210000004087 cornea Anatomy 0.000 title abstract description 27
- 238000003384 imaging method Methods 0.000 claims abstract description 29
- 230000000007 visual effect Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 19
- 210000003128 head Anatomy 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 15
- 210000001061 forehead Anatomy 0.000 claims description 2
- 230000000877 morphologic effect Effects 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 208000010412 Glaucoma Diseases 0.000 description 1
- 201000002287 Keratoconus Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
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Abstract
The utility model discloses a cornea measuring device, which has the technical proposal that the cornea measuring device comprises a rotary slit lamp part, a microscopic imaging terminal and a handheld part; the rotary slit lamp part comprises a rotary disc base, a rotary disc, a slit lamp and a driving unit; the rotary disc is rotatably connected with the rotary disc base, the driving unit is used for driving the rotary disc to rotate, a center hole is formed in the center of the rotary disc, and a visible passage of the microscopic imaging terminal penetrates through the center hole; the slit lamp is arranged on one surface of the rotating disc, which is far away from the microscopic imaging terminal, so that the emission light of the slit lamp forms an alpha angle with a visual passage of the microscopic imaging terminal. The utility model discloses use rotatory slit lamp to shoot the scheme of illumination, realize the morphological recurrence on each surface of cornea, shoot the unit through setting up the shutter simultaneously, can conveniently and gather the tangent plane image of different angles fast, and portable.
Description
Technical Field
The utility model relates to a measuring device especially relates to a cornea measuring device.
Background
The slit lamp is called 'slit lamp microscope' and is an optical device which is used most frequently in ophthalmology. The slit lamp can only carry out qualitative detection, but can not carry out quantitative measurement, so that other various detection devices such as a pachymeter, a keratometer and the like are matched for further quantitative measurement. By adding a data processing module and the like to the digital slit lamp, the front and back surface forms and the thickness of the cornea can be measured, the application range of the slit lamp is greatly expanded, and the medical cost is saved. If the cornea of different meridians is shot by combining more accurate mechanical positioning and automatic rotation, the corneal topography and the corneal thickness map are accurately obtained. These parameters can help doctors to investigate glaucoma, diagnose keratoconus at early stage, screen contraindications in corneal refractive surgery, make surgical plan and observe postoperative changes, ensure the curative effect of surgery to the utmost extent and reduce postoperative complications.
Currently, patent publication No. CN 108652583 a discloses an apparatus and method for detecting corneal thickness and curvature. According to the scheme, a digital slit lamp is adopted to vertically irradiate human eyes to form an anterior segment optical section, a camera which deviates from a slit light path by an angle alpha is rotated to shoot to obtain an anterior segment optical section image, a light path tracking method is utilized to carry out geometric malformation calibration, and a three-dimensional reconstruction algorithm is combined to draw a cornea thickness and diopter map. Although the prior art proposes a method for forming an optical section shooting by utilizing a slit lamp from a technical angle, the technical scheme only remains one angle for the shape shooting of the cornea, and cannot propose a scheme for realizing the full shape presentation of the cornea, and simultaneously, an effective implementation scheme cannot be proposed for the poor image registration caused by the shooting angle of a camera.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, proposed and shot the scheme of illumination through rotatory slit lamp, realized the morphological recurrence on each surface of cornea. Meanwhile, by arranging the shutter shooting unit, section images at different angles can be conveniently and rapidly collected, and the cornea measuring device is convenient to carry.
The utility model adopts the following technical scheme: a cornea measuring device comprises a rotary slit lamp part, a microscopic imaging terminal and a handheld part; the rotary slit lamp part comprises a rotary disc base, a rotary disc, a slit lamp and a driving unit; the rotary disc is rotatably connected with the rotary disc base, the driving unit is used for driving the rotary disc to rotate, a center hole is formed in the center of the rotary disc, and a visible passage of the microscopic imaging terminal penetrates through the center hole; the slit lamp is arranged on one surface of the rotating disc, which is far away from the microscopic imaging terminal, so that the emission light of the slit lamp and the visual passage of the microscopic imaging terminal form an alpha angle.
The utility model discloses further set up as, the microscopic imaging terminal includes the microscopic camera, the microscopic camera is equipped with the shutter shooting unit, the shutter shooting unit can be built-in or external to the microscopic camera, the shooting unit of built-in microscopic camera is built-in shutter shooting unit, the shooting unit of external to the microscopic camera is external shutter shooting unit; the built-in shutter shooting unit drives the micro camera to shoot images through a shutter, and the external shutter shooting unit is shooting equipment with a shutter shooting function.
The utility model discloses further set up to, external shutter shoots unit detachable and connects in the micro-camera, and external shooting unit and the relative and external shutter of micro-camera imaging screen shoot the shooting route of unit and the visual route of micro-camera are in same horizontal straight line.
The utility model is further arranged that a plurality of transmission shafts are arranged on the rotating disc near the outer diameter; the drive unit comprises a motor and a transmission belt, the motor is arranged in the handheld portion, and the transmission belt is in transmission connection with an output shaft of the motor and the transmission shafts.
The utility model discloses further set up to, the shutter shoots the unit and gathers a tangent plane image at microscopic imaging terminal after the rotary disk rotates 1-18 degrees every time.
The utility model discloses further set up to, the shutter is shot the unit and is gathered a tangent plane image at microscopic imaging terminal after the rotary disk rotates every 7.2 degrees.
The utility model is further provided that the hand-held part comprises a first hand-held arm and a second hand-held arm, the first hand-held arm comprises a first end and a second end, and the second hand-held arm comprises a third end and a fourth end; the first end of the first handheld arm is connected with the micro-camera; the third end of the second holding arm is connected with the rotating disk base, the second end of the first holding arm is connected with the fourth end of the second holding arm, and a groove is formed at the connection position of the first holding arm and the second holding arm.
The utility model discloses further set up to, the rotary disk base still is equipped with head fixing device, and head fixing device is used for fixing a position the head and keeps people's eye alignment the centre bore.
The utility model discloses further set up to, head fixing device holds in the palm for the volume.
The utility model has the advantages that: the utility model discloses an make the rotatory operation of slit lamp, realize that each surface morphology of cornea reappears, and need not to rely on other anterior ocular segment measuring equipment and can realize the front surface quantitative analysis to the cornea, simultaneously the utility model discloses a combine to realize the whole miniaturization of equipment with external photography equipment for the device portable, and it can upload, makes things convenient for data transmission between equipment with the help of the internet through external photography equipment.
Drawings
FIG. 1 is a top view of a corneal measurement device.
Fig. 2 is a front view of a corneal measurement device.
Figure 3 is a side view of a corneal measurement device.
Reference numerals: 1. rotating the slit-lamp section; 11. a rotating disk base; 12. rotating the disc; 13. a slit lamp; 111. a head fixing device; 121. a central bore; 122. a drive shaft; 2. a microscopic imaging terminal; 21. a microscopic camera; 211. an external shutter shooting unit; 3. a hand-held portion; 31. a first hand-held arm; 32. a second hand-held arm.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Fig. 1-3 show an embodiment of a corneal measurement device according to the present invention. This example: the device comprises a rotary slit-lamp part 1, a microscopic imaging terminal 2 and a handheld part 3; the handheld part of the slit lamp can be replaced by a handheld seat or other bases with fixing function, and the rotary slit lamp part 1 comprises a rotary disk base 11, a rotary disk 12, a slit lamp 13 and a driving unit; the rotating disc 12 is rotatably connected with the rotating disc base 11, the driving unit is used for driving the rotating disc to rotate, and the driving unit adopts any one of conventional driving modes in the prior art, such as belt transmission and gear transmission. The center of the rotating disk 12 is provided with a central hole 121, and a visual passage of the microscopic imaging terminal 2 passes through the central hole 121; the rotary disk 12 is rotatably connected with the rotary disk base 11, and the slit lamp 13 is installed on one surface of the rotary disk 12, which is far away from the microscopic imaging terminal 2, so that the emission light of the slit lamp 13 forms an angle alpha with the visible path of the microscopic imaging terminal 2.
According to the technical scheme, the slit lamp is arranged on the rotating disc, so that the slit lamp rotates and operates, the reappearance of each surface form of the cornea is realized, the cornea with different meridians can be shot through manual shooting or other auxiliary equipment, and a corneal topography map and a corneal thickness map are obtained through data processing. And the quantitative analysis of the front surface of the cornea can be realized without depending on other anterior segment measuring equipment.
As a modified specific embodiment, the microscopic imaging terminal 2 includes a microscopic camera 21, the microscopic camera 21 is provided with a shutter shooting unit, the shutter shooting unit can be built in or external to the microscopic camera 21, the shooting unit built in the microscopic camera 21 is a built-in shutter shooting unit, and the shooting unit external to the microscopic camera 21 is an external shutter shooting unit 211; the built-in shutter shooting unit drives the microscope camera 21 to perform shutter shooting, and the external shutter shooting unit 211 is a shooting device with a shutter shooting function, and can be a smart phone or other electronic shooting devices with data processing capability.
Through the technical scheme, the micro-camera is provided with the shutter shooting unit to realize the snapshot of the micro-camera, so that cornea section images in different forms can be obtained in time, a doctor can accurately analyze the state of an illness, meanwhile, the whole miniaturization of equipment is realized by combining the snapshot unit and the micro-camera, the problems that the cost is high, the equipment is large, the equipment is required to be equipped with external equipment such as a special computer and the like, the equipment is not convenient to carry and the like are solved, Scheimpflug shooting is replaced, the cost of part of the equipment is saved, and the device is convenient to popularize and use
As an improved specific embodiment, the external shutter shooting unit 211 is detachably connected to the microscope camera 21, and it may be connected to the microscope camera by using a suction cup device or a clamping device, the external shutter shooting unit 211 is opposite to the imaging screen of the microscope camera 21, and the shooting path of the external shutter shooting unit 211 and the visual path of the microscope camera 21 are in the same horizontal straight line.
Through the technical scheme, the external shutter shooting unit is arranged, so that the establishment speed of the cornea complex three-dimensional model is increased, the data transmission capability of the device is improved, and the integration of offline examination and online diagnosis and treatment is realized by means of a high-performance computing system of external photographing equipment and the capacity of uploading data.
As a modified embodiment, the rotating disc 12 is provided with a plurality of transmission shafts 122 near the outer diameter in a circle; the drive unit comprises a motor and a transmission belt, the motor is arranged in the handheld part 3, the motor can also be externally arranged on the rotating disk base, and the transmission belt is in transmission connection with the output shaft of the motor and the transmission shafts 122.
Through the technical scheme, the rotating disc rotates, so that the rotating disc is linked with the slit lamp to form multiple angles, an omnibearing anterior segment optical section is obtained, and the morphological reappearance of each surface of the cornea is realized.
As a modified embodiment, the shutter shooting unit acquires a section image of the microscopic imaging terminal 2 after each rotation of the rotating disk 12 by 1-18 degrees.
As a modified embodiment, the shutter shooting unit acquires a section image of the microscopic imaging terminal 2 after every 7.2 degrees of rotation of the rotating disk 12.
Through the technical scheme, the shutter shooting unit can restore the real position of the back surface of the cornea and calculate the calibration geometric distortion of the image obtained by shooting the image information including the front and back surface shapes of the cornea, the surface contours of the iris, the lens and the like, the front and back surface curvatures and the like are obtained according to the calculation, meanwhile, the clinical data such as the real thickness of the cornea and the like are obtained by means of the light refraction formula and the known data, and a real and accurate three-dimensional cornea model is constructed.
As a modified embodiment, the hand-held portion 3 includes a first hand-held arm 31 including a first end and a second end, and a second hand-held arm 32 including a third end and a fourth end; a first end of the first handheld arm 31 is connected with the microscope camera 21; the third end of the second handheld arm 32 is connected with the rotating disk base 11, the second end of the first handheld arm 31 is connected with the fourth end of the second handheld arm 32, and a groove is formed at the connection position. The handheld portion may also be a handheld base fixedly connected to the rotating disk base for securing the rotating slit-lamp portion, and further wherein the microscopic camera may be secured by a detachable bracket.
Through above-mentioned technical scheme, connect micro-camera and carousel respectively, its simple structure facilitates the user and lifts and remove the instrument, accords with ergonomic consideration.
As a modified embodiment, the turntable base 11 is further provided with a head fixture 111, said head fixture 111 being used for positioning the head to keep the eyes of the person aligned with said central hole 121. The head fixing device can be fixedly connected to the rotating disk base or fixedly connected to the handheld part through the bracket.
As a modified embodiment, the head fixation device 111 is a forehead rest.
Through the technical scheme, the head is fixed or positioned on the head fixing device, the eyes of people are kept to be aligned to the central hole, the displacement generated in the shooting process is avoided, the best observation angle is convenient to find, and a doctor can observe the cornea in an all-round mode.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A corneal measurement device, characterized by: the device comprises a rotary slit lamp part (1), a microscopic imaging terminal (2) and a handheld part (3); the rotary slit lamp part (1) comprises a rotary disc base (11), a rotary disc (12), a slit lamp (13) and a driving unit; the rotating disc (12) is rotatably connected with the rotating disc base (11), the driving unit is used for driving the rotating disc to rotate, a center hole (121) is formed in the center of the rotating disc (12), and a visual passage of the microscopic imaging terminal (2) penetrates through the center hole (121); the slit lamp (13) is installed on one surface, away from the microscopic imaging terminal (2), of the rotating disc (12), and an alpha angle is formed between the emission light of the slit lamp (13) and a visible path of the microscopic imaging terminal (2).
2. A corneal measurement device as claimed in claim 1, wherein: the microscopic imaging terminal (2) comprises a microscopic camera (21), the microscopic camera is provided with a shutter shooting unit, and the shutter shooting unit can be arranged in or out of the microscopic camera (21);
the shooting unit built in the microscope camera (21) is a built-in shutter shooting unit which drives the microscope camera (21) to shoot an image by a shutter;
the shooting unit externally arranged on the microscope camera (21) is an external shutter shooting unit (211); the external shutter shooting unit (211) is a shooting device with a shutter shooting function.
3. A corneal measurement device as claimed in claim 2, wherein: the external shutter shooting unit (211) is detachably connected to the microscope camera (21), the external shutter shooting unit (211) is opposite to an imaging screen of the microscope camera (21), and a shooting passage of the external shutter shooting unit (211) and a visual passage of the microscope camera (21) are in the same horizontal straight line.
4. A corneal measurement device as claimed in claim 1, wherein: a plurality of transmission shafts (122) are arranged on the rotating disc (12) in a circle close to the outer diameter; the driving unit comprises a motor and a transmission belt, the motor is arranged in the handheld portion (3), and the transmission belt is in transmission connection with an output shaft of the motor and a plurality of transmission shafts (122).
5. A corneal measurement device according to claim 4, wherein: the shutter shooting unit is used for acquiring a section image of the microscopic imaging terminal (2) after the rotating disc (12) rotates for 1-18 degrees.
6. A corneal measurement device according to claim 5, wherein: the shutter shooting unit is used for acquiring a section image of the microscopic imaging terminal (2) after the rotating disc (12) rotates for 7.2 degrees.
7. A corneal measurement device as claimed in claim 1, wherein: the hand-held part (3) comprises a first hand-held arm (31) and a second hand-held arm (32), the first hand-held arm comprises a first end and a second end, and the second hand-held arm comprises a third end and a fourth end; the first end of the first handheld arm (31) is connected with the microscopic camera (21); the third end of the second handheld arm (32) is connected with the rotary disc base (11), the second end of the first handheld arm (31) is connected with the fourth end of the second handheld arm (32), and a groove is formed at the connection position of the first handheld arm and the second handheld arm.
8. A corneal measurement device according to any one of claims 1 to 7, wherein: the rotary disk base (11) is further provided with a head fixing device (111), and the head fixing device (111) is used for positioning the head to keep human eyes aligned with the central hole (121).
9. A corneal measurement device as claimed in claim 8, wherein: the head fixing device (111) is a forehead support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120520980.3U CN215017201U (en) | 2021-03-11 | 2021-03-11 | Cornea measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120520980.3U CN215017201U (en) | 2021-03-11 | 2021-03-11 | Cornea measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215017201U true CN215017201U (en) | 2021-12-07 |
Family
ID=79260590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120520980.3U Expired - Fee Related CN215017201U (en) | 2021-03-11 | 2021-03-11 | Cornea measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215017201U (en) |
-
2021
- 2021-03-11 CN CN202120520980.3U patent/CN215017201U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |