CN114067649A - Teaching device for simulating direct ophthalmoscopy of human eyeground - Google Patents

Teaching device for simulating direct ophthalmoscopy of human eyeground Download PDF

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Publication number
CN114067649A
CN114067649A CN202111625446.XA CN202111625446A CN114067649A CN 114067649 A CN114067649 A CN 114067649A CN 202111625446 A CN202111625446 A CN 202111625446A CN 114067649 A CN114067649 A CN 114067649A
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eyeball
simulated
liquid crystal
display screen
crystal display
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牛耘丽
李颖
荣翱
徐玉乐
韩雯婷
车娜
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Shanghai Tongji Hospital
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Shanghai Tongji Hospital
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals

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  • Chemical & Material Sciences (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Business, Economics & Management (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
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  • Pure & Applied Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

The invention relates to a teaching device for simulating direct ophthalmoscopy of human eyeground, which comprises an appearance model and a PC (personal computer) end control system; the appearance model is made of rubber and plastic, simulates the appearance of a common adult, has complete craniofacial skeleton appearance, and has obvious characteristics of an orbit part and an eye socket; the PC end control system comprises a liquid crystal display screen and a simulation eyeball; the liquid crystal display screen is arranged on the inner side of the eye socket part of the appearance model; the back half section of the simulated eyeball is of a cylindrical structure, and the bottom of the simulated eyeball is open and faces the liquid crystal display screen; the front half part of the simulated eyeball is of a hemispherical structure and presents the appearance of a common eyeball; the most front end of the hemispherical structure is also provided with a hole and embedded with a simulated crystalline lens. Its advantages are: the eyeground condition and the lens and the pupil of the eyeball can be simulated, so that the repeated exercise opportunity is better provided for students, the learning time is shortened, and the learning efficiency is improved.

Description

Teaching device for simulating direct ophthalmoscopy of human eyeground
Technical Field
The invention relates to the technical field of medical equipment, in particular to a teaching device for simulating direct ophthalmoscopy of human eyeground.
Background
Fundus examination is a necessary clinical skill for each medical student as part of a general physical examination. In addition to the requirement of ophthalmologists, there are also other departments such as neurology, cardiovascular, hematology, and obstetrics and gynecology that require examination of the condition of the fundus. The direct ophthalmoscope is a simple device for rapidly observing the nervus oculi and the retinopathy, is simple to operate, does not need mydriasis, is convenient to carry and is low in price. At present, the general ophthalmology practice time of higher medical institutions is limited, and few students can master the use of direct ophthalmoscopes in a short time, which is a skill that needs to be mastered by repeated training and practice.
In training and evaluation of direct ophthalmoscopy skills, there are many different teaching methods. The traditional teaching mostly adopts a learning mode of knowledge transfer type guided by a teacher, and teachers guide students to observe the pathological manifestations of eyeground under ophthalmoscope after discovering patients with typical pathological manifestations of eyeground in clinical work. Students have difficulty practicing on real patients for a long time because prolonged intense light irradiation causes eye discomfort and even photodamage to the retina. Since the direct ophthalmoscope fundus examination operation is not allowed to be repeated for many times and for a long time, the teaching effect of the conventional teaching cannot be guaranteed.
Chinese patent documents: CN200810121320.7, application date 20080925, patent names: a hand-held screen display type direct ophthalmoscope. A hand-held direct ophthalmoscope with screen display is composed of casing, lighting system and observation system, which are installed in the casing, and the observation system consisting of peephole, focusing compensation system, micro camera system, A/D converter, screen display system, micro control system, and the whole direct ophthalmoscope.
Chinese patent documents: CN201310033146.1, application date 20130129, patent names: simulating the structure of the eye. The simulated structure of the simulated human eyes for teaching and training comprises simulated eyelids, irises and eyeballs, wherein the upper eyelid of the eyelid is a spherical body, the spherical body is rotatably connected with a shaft penetrating through the centers of the eyeballs through a support body, and the spherical body is also connected with an electric toggle mechanism through a spring. The eyeball is composed of a luminous body simulating an artificial lens, the luminous body is a display screen and is provided with a memory for storing images of eye states and clinical symptoms of cases and an integrated circuit board for driving the display screen to display.
Compared with the direct ophthalmoscope which performs examination through a peephole, the handheld screen display type direct ophthalmoscope disclosed in the patent document CN200810121320.7 does not need the close contact between the examiner and the face of the examinee, and does not need the examiner to adopt a passive body position meeting the examinee during examination, so that the use is convenient and comfortable, the examination part can be easily determined, the findings in the examination can be optionally and instantly photographed and recorded according to the examination condition displayed on the screen for careful analysis and judgment, and the unnecessary examination time is reduced; in the simulated eye structure of patent document CN201310033146.1, an electric toggle mechanism is provided with a rotating bracket, the rotating bracket is connected to the spherical surface of the upper eyelid through a spring, and a rod on the rotating bracket is in contact linkage with a rotating fork of a motor shaft. The eyeball is also provided with a photosensitive device, and the output end of the photosensitive device is connected with the input end of the integrated circuit board for driving the screen display. Eyes can be opened and closed manually, and can also be opened and closed automatically through motor drive, so that people can achieve good learning effect and teaching purpose in teaching, training and operation processes. However, the simulated eye structures in the above two patent documents cannot simulate the condition of the fundus, and cannot simulate the size and transmittance of the lens and the through hole of the eyeball, and therefore, are not suitable for teaching of direct ophthalmoscopy of the fundus.
In view of the above, there is a need for a teaching device simulating direct ophthalmoscopy of human fundus, which can simulate the condition of fundus and lens and pupil of eyeball, thereby better providing students with the opportunity of repeated practice, shortening learning time and improving learning efficiency. There is no report on the teaching device.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a teaching device which can simulate the condition of eyeground and the crystalline lens and pupil of eyeball, thereby better providing the students with the opportunity of repeated practice, shortening the learning time and improving the learning efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that:
a teaching device simulating direct ophthalmoscopy of human eyeground comprises an appearance model and a PC (personal computer) end control system; the PC end control system comprises a liquid crystal display screen and a simulation eyeball; the liquid crystal display screen is arranged on the inner side of the eye socket part of the appearance model; the back half section of the simulated eyeball is of a cylindrical structure, and the bottom of the simulated eyeball is open and faces the liquid crystal display screen; the front half part of the simulated eyeball is of a hemispherical structure and presents the appearance of a common eyeball; the most front end of the hemispherical structure is also provided with a hole and embedded with a simulated crystalline lens.
As a preferred technical scheme, the appearance model is made of rubber and plastics, simulates the appearance of a common adult human, has a complete craniofacial skeleton appearance, and has obvious characteristics of an orbit part and an eye socket.
As a preferred technical scheme, a power line and a video signal line are externally connected to the liquid crystal display screen.
As a preferred technical scheme, the liquid crystal display screen is connected with the inside of an eye socket of the appearance model in a sticking mode, and the bottom of the simulated eyeball is connected with the surface of the liquid crystal display screen in a sticking mode.
The invention has the advantages that:
1. the eyeground is simulated through the liquid crystal display screen, and different brightnesses of the liquid crystal display screen can be controlled through the PC end during training or examination, so that the displayed optical structure in the simulated eyeball is more real, and the purpose of effectively simulating the optical structure of the real eyeball is achieved.
2. The liquid crystal display screen can simulate the reflection of the eye under the illumination of the ophthalmoscope, so that the PC end control system can simulate the effect of the arc-shaped eye ground of a human by using the plane screen.
3. Simulation eyeball bottom and liquid crystal display between for pasting the design of connected mode, be convenient for simulate eyeball's change to can be equipped with the simulation eyeball of different through-hole sizes and crystalline lens transmittance, convenient to use.
4. According to the invention, through the design of the appearance model and the PC end control system, the high-resolution display controlled by the computer is applied, the brightness, the chromaticity, the contrast and the dynamic change of the real eyeground can be simulated through software, a more real eyeground inspection environment is presented, and the high-efficiency teaching and examination are facilitated.
5. The design that the rear half section of the simulated eyeball is designed into a telescopic adjusting type structure is convenient for adjusting the length of the simulated eyeball in training or examination, so that efficient teaching and examination are facilitated.
Drawings
FIG. 1 is a schematic diagram of an appearance model structure of a teaching device simulating direct ophthalmoscopy of human eyeground.
FIG. 2 is a schematic structural diagram of a PC end control system of a teaching device for simulating direct ophthalmoscopy of human eyeground.
FIG. 3 is a schematic structural diagram of a PC-side control system of another teaching device simulating direct ophthalmoscopy of human eyeground.
Detailed Description
The invention is further described with reference to the following examples and with reference to the accompanying drawings.
The reference numerals and components referred to in the drawings are as follows:
1. appearance model 2.PC end control system
21. LCD 211. power cord
212. Video signal line 22, simulation eyeball
23. Crystalline lens
Example 1
Referring to fig. 1-2, fig. 1 is a schematic view of an appearance model structure of a teaching device for simulating direct ophthalmoscopy of human eyeground, and fig. 2 is a schematic view of a PC-side control system structure of the teaching device for simulating direct ophthalmoscopy of human eyeground. A teaching device simulating direct ophthalmoscopy of human eyeground comprises an appearance model 1 and a PC (personal computer) end control system 2; the appearance model 1 is made of rubber and plastic, simulates the appearance of a common adult, has a complete craniofacial skeleton shape, and has obvious characteristics of an orbit part and an eye socket; the PC end control system 2 comprises a liquid crystal display screen 21 and a simulation eyeball 22; the liquid crystal display screen 21 is arranged on the inner side of the eye socket part of the appearance model 1; the liquid crystal display screen 21 is externally connected with a power line 211 and a video signal line 212; the back half section of the simulated eyeball 22 is of a cylindrical structure, and the bottom of the simulated eyeball is opened towards the liquid crystal display screen 21; the front half part of the simulated eyeball 22 is of a hemispherical structure and presents the appearance of a common eyeball; the foremost end of the hemispherical structure is also provided with a hole and embedded with a simulated crystalline lens 23; the liquid crystal display screen 21 is connected with the interior of the eye socket of the appearance model 1 in a sticking mode, and the bottom of the simulated eyeball 22 is connected with the surface of the liquid crystal display screen 21 in a sticking mode.
It should be noted that: the eyeground is simulated through the liquid crystal display screen 21, and different brightnesses of the liquid crystal display screen 21 can be controlled through the PC terminal during training or examination, so that the displayed optical structure in the simulated eyeball 22 is more real, and the purpose of effectively simulating the optical structure of the real eyeball is achieved; the liquid crystal display screen 21 can simulate the reflection of the eye under the illumination of the ophthalmoscope, so that the PC end control system can simulate the effect of the arc-shaped eye ground of a human by using a plane screen; the bottom of the simulated eyeball 22 and the liquid crystal display screen 21 are in a sticking connection mode, so that the simulated eyeball 22 can be conveniently replaced, the simulated eyeball 21 with different through hole sizes and lens transmittance can be prepared, and the use is convenient; according to the invention, through the design of the appearance model 1 and the PC end control system 2, the high-resolution display controlled by a computer is applied, the brightness, the chromaticity, the contrast and the dynamic change of the real eye ground can be simulated through software, a more real eye ground inspection environment is presented, and efficient teaching and assessment are facilitated.
Example 2
Referring to fig. 3, fig. 3 is a schematic structural diagram of a PC-side control system of another teaching device simulating direct ophthalmoscopy of human fundus oculi according to the present invention. The present embodiment is substantially the same as embodiment 1, except that the second half of the simulated eyeball 22 in the present embodiment is a retractable and adjustable structure; the design that the rear half section of the simulated eyeball 22 is designed into a telescopic adjusting type structure is convenient for adjusting the length of the simulated eyeball 22 in training or examination, so that efficient teaching and examination are facilitated.
According to the teaching device for simulating the direct ophthalmoscopy of the human eye ground, the eye ground is simulated through the liquid crystal display screen, and different brightnesses of the liquid crystal display screen can be controlled through the PC end during training or examination, so that the displayed optical structure in the simulated eyeball is more real, and the purpose of effectively simulating the optical structure of the real eyeball is achieved; the liquid crystal display screen can simulate the reflection under the illumination of the ophthalmoscope, so that the PC end control system can simulate the effect of the human arc eyeground by using the plane screen; the bottom of the simulated eyeball and the liquid crystal display screen are in a sticking connection mode, so that the simulated eyeball can be conveniently replaced, the simulated eyeball with different through hole sizes and lens transmittance can be prepared, and the use is convenient; according to the invention, through the design of the appearance model and the PC end control system, the high-resolution display controlled by a computer is applied, the brightness, the chromaticity, the contrast and the dynamic change of the real eyeground can be simulated through software, a more real eyeground inspection environment is presented, and efficient teaching and assessment are facilitated; the design that the rear half section of the simulated eyeball is designed into a telescopic adjusting type structure is convenient for adjusting the length of the simulated eyeball in training or examination, so that efficient teaching and examination are facilitated.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and additions can be made without departing from the principle of the present invention, and these should also be considered as the protection scope of the present invention.

Claims (4)

1. A teaching device simulating direct ophthalmoscopy of human eyeground is characterized by comprising an appearance model and a PC (personal computer) end control system; the PC end control system comprises a liquid crystal display screen and a simulation eyeball; the liquid crystal display screen is arranged on the inner side of the eye socket part of the appearance model; the back half section of the simulated eyeball is of a cylindrical structure, and the bottom of the simulated eyeball is open and faces the liquid crystal display screen; the front half part of the simulated eyeball is of a hemispherical structure and presents the appearance of a common eyeball; the most front end of the hemispherical structure is also provided with a hole and embedded with a simulated crystalline lens.
2. The teaching device according to claim 1, wherein said appearance model is made of rubber and plastic, and simulates the appearance of a normal adult human, having a complete craniofacial skeleton profile and distinct orbital and orbital features.
3. The teaching device for simulating direct ophthalmoscopy of human fundus according to claim 1, wherein the liquid crystal display screen is externally connected with a power line and a video signal line.
4. The teaching device for simulating the direct ophthalmoscopy of the human fundus as claimed in claim 1, wherein the liquid crystal display screen is in adhesive connection with the inside of the eye socket of the appearance model, and the bottom of the simulated eyeball is in adhesive connection with the surface of the liquid crystal display screen.
CN202111625446.XA 2021-12-28 2021-12-28 Teaching device for simulating direct ophthalmoscopy of human eyeground Pending CN114067649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111625446.XA CN114067649A (en) 2021-12-28 2021-12-28 Teaching device for simulating direct ophthalmoscopy of human eyeground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111625446.XA CN114067649A (en) 2021-12-28 2021-12-28 Teaching device for simulating direct ophthalmoscopy of human eyeground

Publications (1)

Publication Number Publication Date
CN114067649A true CN114067649A (en) 2022-02-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111625446.XA Pending CN114067649A (en) 2021-12-28 2021-12-28 Teaching device for simulating direct ophthalmoscopy of human eyeground

Country Status (1)

Country Link
CN (1) CN114067649A (en)

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