CN214595823U

CN214595823U - Accurate pupil measuring apparatu

Info

Publication number: CN214595823U
Application number: CN202023085490.XU
Authority: CN
Inventors: 周晓蓉; 魏崇宇; 汪津津
Original assignee: Jiangsu Cancer Hospital
Current assignee: Jiangsu Cancer Hospital
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-11-05
Anticipated expiration: 2030-12-21

Abstract

An accurate pupil measuring instrument relates to the technical field of medical auxiliary appliances, and comprises a CCD camera and a shell, wherein the shell is in a gun-shaped structure, a handle of the shell is a battery compartment for installing a battery, the head end of the shell is provided with the CCD camera, a microprocessor and a storage unit are arranged in the shell, one end of the shell, which is far away from the CCD camera, is provided with a display screen, and the inner side of the corner position of the shell is provided with a control switch for controlling the CCD camera; a guide rod is arranged on one side of the shell corresponding to the CCD camera, an arc-shaped positioning block is arranged at one end of the guide rod, which is far away from the shell, an arc-shaped lighting lamp strip is embedded in the inner arc surface of the arc-shaped positioning block, and a cross coordinate used for reference is arranged on one side of the arc-shaped positioning block, which corresponds to the guide rod; the utility model discloses utilize CCD camera and image measurement algorithm technique can realize the accurate measurement to patient's pupil.

Description

Accurate pupil measuring apparatu

Technical Field

The utility model belongs to the technical field of medical treatment appurtenance technique and specifically relates to a accurate pupil measuring apparatu is related to.

Background

As is known, the eye is used as an important information acquisition organ of a human body, external light radiation information is acquired, and meanwhile, pathological changes of a plurality of tissues and organs of the human body are reflected, so that the eye can not only find ophthalmic diseases, but also can even carry out early diagnosis on some systemic diseases through observation and measurement of the eye; the traditional methods usually adopted by medical personnel for judging the pupils mainly comprise a subjective judgment method and a pupillometer comparison method; the subjective judgment method mainly depends on the working experience of medical staff, and the pupil state is judged by directly irradiating the pupil through a common pupil light pen; the pupil ruler comparison method mainly adopts the method that a card is painted with pupil simulation graphs with different diameters, scales with different pupil sizes are marked, medical workers take the graph to compare the pupil sizes of patients and measure the pupil sizes, and the two methods have obvious defects: the defect of the subjective judgment method is mainly reflected in that the subjective judgment method cannot be mastered in a short time by young medical workers who lack clinical work experience, and the pupil judgment error is large; the pupillometry contrast method has the defects that medical staff still need to compare the data by naked eyes to obtain the data, subjective errors still exist, and meanwhile, the sharp pupillometry paper edge easily cuts the cornea of a patient to cause secondary damage to the patient;

with the continuous development of science and technology, technologies of taking pictures and then ranging images appear, which are mainly classified into the following categories: the technology is widely applied to the technical fields of size measurement of parts, appearance detection, application of vehicle-mounted systems, biomedical detection and analysis, aerial remote sensing measurement, military public security application and the like at present; the wide application and development of the image ranging technology are not only due to the continuous expansion of the application demand field, but also due to the development and perfection of the computer technology and the digital image processing technology, and the appearance of the high-resolution CCD digital camera and the video camera not only meets the demand on the aspect of knowing and calculating precision, but also greatly shortens the image data acquisition and transmission time and improves the working efficiency, but the technology of pupil measurement through the CCD video camera is still to be further researched.

Disclosure of Invention

In order to overcome the not enough in the background art, the utility model discloses an accurate pupil measuring apparatu.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an accurate pupil measuring instrument comprises a CCD camera and a shell, wherein the shell is in a gun-shaped structure, a battery compartment for installing a battery is arranged at the handle position of the shell, the CCD camera is arranged at the gun head end of the shell, a microprocessor and a storage unit are arranged in the shell, a display screen is arranged at one end of the shell, which is far away from the CCD camera, and a control switch for controlling the CCD camera is arranged at the inner side of the corner position of the shell; one side that the casing corresponds the CCD camera is equipped with the guide bar, and the one end that this guide bar deviates from the casing is equipped with the arc locating piece, the interior cambered surface of arc locating piece inlays and is equipped with curved lighting lamp area, and one side that the arc locating piece corresponds the guide bar is equipped with the cross coordinate that is used for referring to.

Preferably, the guide rod is inserted into the shell correspondingly in a damping mode, and the cross section of the guide rod is of a rectangular structure.

Preferably, a light supplement lamp is arranged above the head end of the shell body corresponding to the CCD camera.

Preferably, an operation button is arranged below the shell corresponding to the display screen.

Preferably, one side of the arc-shaped positioning block, which is far away from the guide rod, is provided with a silica gel pad.

Preferably, the cross coordinate is a red mark, and is obviously different from the color of the arc-shaped positioning block.

Preferably, a wireless data transmission module is arranged in the shell.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses an accurate pupil measuring apparatu, simple structure, measurement accuracy is higher, carries out graying, edge detection, threshold value segmentation, noise point in the thick edge and marginal center extraction to pupil and the cross coordinate catching in the image through miniature processor in the casing in proper order, then carries out the coincidence stack with the marginal center of the pupil and the cross coordinate image of extraction, can calculate the aperture of patient's pupil according to the scale characteristic of cross coordinate, and can show the measuring result through the display screen; when the device is used, the CCD camera can be controlled to continuously capture a plurality of images of the eyes of a patient, and then the maximum value and the minimum value of the measurement results of the captured images are removed and then the average value is calculated, so that the measurement precision is further improved;

the guide rod is correspondingly inserted into the shell in a damping manner, and the cross section of the guide rod is of a rectangular structure, so that the guide rod can be inserted into the shell when not in use, the size can be effectively reduced, the guide rod is convenient to store and store, and the guide rod can be prevented from being accidentally bent or broken in the storing and storing process; an arc-shaped lighting lamp strip is embedded in the inner arc surface of the arc-shaped positioning block, namely the lighting lamp strip can provide light from the side surface, and the effect of capturing images by the CCD camera is prevented from being influenced by corneal reflection;

in addition, a light supplement lamp is arranged above the gun head end of the shell corresponding to the CCD camera, so that the illumination effect can be enhanced through the light supplement lamp, and the CCD camera can capture images better in a dark environment; an operation button is arranged below the shell corresponding to the display screen, so that function selection can be carried out through the operation button, or current measurement data can be reviewed; one side that the arc locating piece deviates from the guide bar is equipped with the silica gel pad, and the soft comfort level that can effectively improve the patient of silica gel pad texture.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic diagram of the pupil and the edge center of the cross coordinate image after superposition and coincidence.

In the figure: 1. a CCD camera; 2. a housing; 3. a battery compartment; 4. a display screen; 5. a control switch; 6. a guide bar; 7. an arc-shaped positioning block; 8. a lighting strip; 9. a cross coordinate; 10. a light supplement lamp; 11. an operation button; 12. a silica gel pad.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

With reference to fig. 1-3, an accurate pupil measuring instrument comprises a CCD camera 1 and a shell 2, wherein the shell 2 is in a gun-shaped structure, a battery compartment 3 for installing a battery is arranged at a handle position of the shell 2, the CCD camera 1 is arranged at a gun head end of the shell 2, a microprocessor and a storage unit are arranged in the shell 2, a display screen 4 is arranged at one end of the shell 2 away from the CCD camera 1, and a control switch 5 for controlling the CCD camera 1 is arranged at the inner side of a corner position of the shell 2; a guide rod 6 is arranged on one side of the shell 2 corresponding to the CCD camera 1, and an arc-shaped positioning block 7 is arranged at one end of the guide rod 6, which is far away from the shell 2; according to the requirement, the guide rod 6 is correspondingly inserted into the shell 2 in a damping manner, and the cross section of the guide rod 6 is of a rectangular structure, so that the guide rod 6 can be inserted into the shell 2 when not in use, the size can be effectively reduced, the storage and the storage are convenient, and the guide rod 6 can be prevented from being accidentally bent or broken in the storage and the storage processes; an arc-shaped lighting lamp strip 8 is embedded in the inner arc surface of the arc-shaped positioning block 7, namely the lighting lamp strip 8 can provide light from the side surface, so that the effect of capturing images by the CCD camera 1 is prevented from being influenced by corneal reflection; a cross coordinate 9 for reference is arranged on one side of the arc-shaped positioning block 7 corresponding to the guide rod 6, the cross coordinate 9 can provide reference basis for measurement, and the problem that the measurement result is large in deviation due to the shooting angle is avoided; according to the requirement, the cross coordinate 9 is a red mark and is obviously different from the color of the arc-shaped positioning block 7, so that the identification degree can be improved, and the cross coordinate 9 can be conveniently and rapidly extracted during image processing;

the method for measuring the pupil through the CCD camera 1 comprises the following steps: firstly, an arc-shaped positioning block 7 is contacted with the outer side of the external canthus of a patient, an illuminating lamp strip 8 is started, a control switch 5 is used for controlling a CCD camera 1 to capture images, the captured images are stored in a storage unit in a shell 2, a micro-processor in the shell 2 is used for sequentially carrying out graying, edge detection, threshold segmentation, noise point removal in a thick edge and edge center extraction on the pupil and a cross coordinate 9 captured in the images, then the extracted pupil and the edge center of the cross coordinate 9 image are superposed, the aperture of the pupil of the patient can be calculated according to the scale characteristics of the cross coordinate 9, and a measurement result can be displayed through a display screen 4; when the device is used, the CCD camera 1 can be controlled to continuously capture a plurality of images of the eyes of a patient, and then the maximum value and the minimum value of the measurement result of the captured images are removed and then the average value is calculated, so that the measurement precision is further improved;

in addition, a light supplement lamp 10 is arranged above the tip end of the shell 2 corresponding to the CCD camera 1, so that the illumination effect can be enhanced through the light supplement lamp 10, and the CCD camera 1 can capture images better in a dark environment; an operation button 11 is arranged below the shell 2 corresponding to the display screen 4, namely, function selection can be carried out through the operation button 11, or current measurement data can be reviewed; a silica gel pad 12 is arranged on one side of the arc-shaped positioning block 7, which is far away from the guide rod 6, and the comfort level of a patient can be effectively improved due to the soft texture of the silica gel pad 12; be equipped with wireless data transmission module in the casing 2, can transmit measuring information to medical personnel's PC terminal through wireless data transmission module promptly, be convenient for medical personnel carry out analysis and diagnosis to and measured data's safe storage.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be connected internally or in an interaction relationship, unless otherwise specifically limited, and the specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations;

the details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. The utility model provides an accurate pupil measuring apparatu, contains CCD camera (1), characterized by: the battery charger is characterized by further comprising a shell (2), the shell (2) is of a gun-shaped structure, a battery compartment (3) for mounting a battery is arranged at the handle position of the shell (2), a CCD camera (1) is arranged at the gun head end of the shell (2), a microprocessor and a storage unit are arranged in the shell (2), a display screen (4) is arranged at one end, away from the CCD camera (1), of the shell (2), and a control switch (5) for controlling the CCD camera (1) is arranged on the inner side of the corner position of the shell (2); one side that casing (2) correspond CCD camera (1) is equipped with guide bar (6), and the one end that this guide bar (6) deviate from casing (2) is equipped with arc locating piece (7), the intrados of arc locating piece (7) is inlayed and is equipped with curved lighting lamp area (8), and one side that arc locating piece (7) correspond guide bar (6) is equipped with cross coordinate (9) that are used for the reference.

2. The precision pupillometer of claim 1, wherein: the guide rod (6) is correspondingly in damping insertion connection with the shell (2), and the cross section of the guide rod (6) is of a rectangular structure.

3. The precision pupillometer of claim 2, wherein: and a light supplement lamp (10) is arranged above the gun head end of the shell (2) corresponding to the CCD camera (1).

4. The precision pupillometer of claim 1, wherein: and an operating button (11) is arranged below the shell (2) corresponding to the display screen (4).

5. The precision pupillometer of claim 1, wherein: and a silica gel pad (12) is arranged on one side of the arc-shaped positioning block (7) departing from the guide rod (6).

6. The precision pupillometer of claim 1, wherein: the cross coordinate (9) is a red mark and is obviously different from the color of the arc-shaped positioning block (7).

7. The precision pupillometer of claim 1, wherein: and a wireless data transmission module is arranged in the shell (2).