CN215078344U

CN215078344U - Pupil diameter measuring apparatu

Info

Publication number: CN215078344U
Application number: CN202120821989.8U
Authority: CN
Inventors: 李新
Original assignee: First Affiliated Hospital of Army Medical University
Current assignee: Nanfang Hospital; First Affiliated Hospital of Army Medical University
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-12-10
Anticipated expiration: 2031-04-21

Abstract

The utility model belongs to the technical field of medical supplies, concretely relates to pupil diameter measuring apparatu, including the main part with locate the light ring in this main part, the light ring has aperture adjustable and surveys the pupil, and the main part is microscler structure, and its one end portion goes up and runs through the range estimation pore that sets up in main part thickness direction, sets up in the range estimation pore the light ring, and the survey pupil center of light ring lie in the central axis in range estimation pore, be equipped with in the main part with the light ring cooperation and be used for adjusting the actuating mechanism who surveys pupil aperture, the opposite side of main part has the shape of being convenient for to hand. The utility model discloses a pupil diameter measuring apparatu can solve the error problem that the human subjective range estimation and estimation lead to in the pupil observation, can realize quick accurate measurement pupil diameter to be convenient for observe, be convenient for handheld, easy operation, easy to get one's hand.

Description

Pupil diameter measuring apparatu

Technical Field

The utility model belongs to the technical field of medical supplies, concretely relates to pupil diameter measuring apparatu.

Background

Many patients suffer from disturbance of consciousness to varying degrees in neurology, surgery, emergency, and the like. The change of the pupil is an important index for observing the change of the state of illness of a patient with disturbance of consciousness, and if the pupil has slow response or disappears to light irradiation, the condition is often seen in a coma patient; the pupil of the patient gradually becomes larger as the degree of loss of consciousness is increased. The medical staff separates the upper eyelid and the lower eyelid of the patient, observes the size and the shape of the pupil and compares the conditions of the two sides of the patient with the same size and the same circle, and rapidly discovers the change of the state of an illness by observing the pupil, thereby playing an important role in saving the life of the patient. In addition, the flashlight is required to move from the side to the pupil quickly and leave immediately, and the opposite side is observed in the same way to observe the response (sensitivity, dullness and disappearance) of the pupil after being stimulated by light. The size of the pupil is that under normal conditions, the pupil is circular, is positioned in the center of the iris, has neat edges, has the diameter of 2-5mm under natural light, has two pupils with equal size and is sensitive to light radiation. The diameter is more than 5mm, called as the pupillary dilation; diameter < 2mm, called miosis.

At present, direct visual measurement or direct measurement with a ruler is mostly adopted clinically. However, this method suffers from the following disadvantages: the pupil size diameter is basically between 2mm and 5mm when normal people are quiet, and the pupil size diameter is a relatively small value. If direct visual measurement is carried out, no reference object exists, the randomness of the pupil monitoring of each medical staff is large, and errors are easy to occur. When the ruler is used for measurement, the numerical value is small, so that the reading is slow and not visual enough, and the measurement speed is influenced. In addition, when a flashlight is taken to see whether the pupil is large, the ruler is taken to measure the pupil, one cannot measure the patient accurately, and the two cannot be carried out synchronously. Especially, if the vital signs and the state of an illness of the patient change, the patient cannot find the change in time, and cannot perform treatment and rescue in time. Therefore, it is urgently required to develop a pupillometer capable of reading out data of the pupil diameter of a patient quickly and accurately.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a pupil diameter measuring instrument, which aims to solve the problem of errors caused by human subjectivity visual inspection and estimation in pupil observation.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pupil diameter measuring apparatu, includes the main part and locates the light ring in this main part, and the light ring has the survey pupil of adjustable aperture, and the main part is long structure, and the range estimation pore that sets up is run through in main part thickness direction on its one end, sets up the light ring in the range estimation pore, and the survey pupil center of light ring lies in the central axis in range estimation pore, is equipped with in the main part with the cooperation of light ring and be used for adjusting the actuating mechanism who surveys pupil aperture, and the opposite side of main part has the shape of being convenient for to hand.

Furthermore, the driving mechanism consists of a turntable and a rotating shaft, the rotating shaft is arranged in the main body, the turntable protruding out of the main body is rotatably arranged on the rotating shaft, and the turntable and the aperture are meshed with each other through respective tooth parts for transmission.

Furthermore, a scale value is arranged on the rotary table, a pointer which is matched with the scale value of the rotary table and does not rotate along with the rotary table is fixedly arranged on the rotary shaft, the main body is of a transparent structure, or the top of the main body is positioned right above the pointer and provided with an observation window.

Furthermore, convex lenses are arranged on the visual inspection pore channel and/or the observation window.

Further, actuating mechanism comprises drawing piece, first extensible member, second extensible member, and first extensible member and second extensible member parallel arrangement are connected with the piece that draws that acts on the diaphragm between the two, draw the piece and be the stay cord, and first extensible member is push rod or voice coil motor, and the second extensible member is in push rod, voice coil motor or spring.

Furthermore, the main body is provided with a digital display instrument which can directly carry out digital display on the pupil measuring aperture of the aperture.

Further, the light ring comprises blade, fixed disk, driving disk, dead axle, moving axis, and the blade is a plurality of, locates on the fixed disk through a dead axle respectively, and a plurality of blades are the annular around and are formed with at the fixed disk center and survey the pupil, still sets up on the driving disk with fixed disk parallel rotation arrangement through a moving axis on the single blade.

Furthermore, the main body is provided with a circle of illuminating lamps on one side facing the pupil and surrounding the visual measurement pore passage, the visual measurement pore passage is provided with a bell mouth at the same side with the illuminating lamps, a circle of illuminating lamps are annularly distributed on the inner wall of the bell mouth, and the illuminating lamps have different light colors.

Further, the main body is provided with a two-color lamp switch for switching on and off the illuminating lamp and the illuminating lamp, and a brightness adjusting button for adjusting the brightness of the illuminating lamp and the illuminating lamp.

Furthermore, a power supply for supplying electric energy to the illuminating lamp and the illuminating lamp is arranged in the main body, and the power supply adopts a dry battery or a rechargeable battery.

The utility model has the advantages that:

1. the utility model discloses a pupil diameter measuring apparatu can solve the error problem that the human subjective range estimation and estimation lead to in the pupil observation, can realize quick accurate measurement pupil diameter to be convenient for observe, be convenient for handheld, easy operation, easy to get one's hand.

2. The utility model discloses a pupil diameter measuring apparatu accomplishes optometry reaction through two light sources under different light conditions fast to measure out accurate pupil size.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of the overlooking structure of the pupil diameter measuring instrument of the present invention.

Fig. 2 is a schematic view of the pupil diameter measuring instrument according to the present invention.

Fig. 3 is the semi-section structure schematic diagram of the pupil diameter measuring instrument of the present invention.

Fig. 4 is a schematic structural view of another driving mechanism of the pupil diameter measuring instrument of the present invention.

Reference numerals: the device comprises a main body 1, a visual inspection hole channel 2, a diaphragm 3, a pupil 4, a rotary disc 5, a pointer 6, an observation window 7, a power supply 8, a two-color lamp switch 9, a brightness adjusting button 10, a lighting lamp 11, a lighting lamp 12, a bell mouth 13, a rotating shaft 14, blades 15, a fixed disc 16, a movable disc 17, a fixed shaft 18, a movable shaft 19, a traction piece 20, a first telescopic piece 21 and a second telescopic piece 22.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example one

Referring to fig. 1-3, the present embodiment relates to a pupil diameter measuring instrument, which includes a main body 1 and an aperture 3 disposed in the main body 1, wherein the aperture 3 has a pupil 4 with an adjustable aperture, the main body 1 is of a long structure, a visual pore 2 is disposed at one end of the main body 1 and penetrates through the main body 1 in a thickness direction, the aperture 3 is disposed in the visual pore 2, the center of the pupil 4 of the aperture 3 is located on a central axis of the visual pore 2, a driving mechanism for adjusting the aperture of the pupil 4 is disposed in the main body 1, the driving mechanism includes a rotating disk 5 and a rotating shaft 14, the rotating shaft 14 is disposed in the main body 1, a rotating disk 5 protruding out of the main body 1 is rotatably disposed on the rotating disk 5, the rotating disk 5 and the aperture 3 are in meshed transmission via respective teeth, the rotating disk 5 is provided with scale values, and the aperture is formed by a blade 15, a fixed disk 16, a movable disk 17, and a fixed shaft 18, The movable shaft 19 is composed, the blade 15 is multiple, locate on the fixed disc 16 through a dead axle 18 separately, and multiple blades 15 are annular to surround and form and examine the pupil 4 in the centre of the fixed disc 16, set up on the single blade 15 on the movable disc 17 that is parallel to fixed disc 16 and rotated and arranged through a movable shaft 19, the movable disc of the rotary table and diaphragm is through the mutual meshing transmission of their tooth parts, and the fixed disc is fixed in the body; the other side of the body 1 has a shape convenient for hand holding.

During the use, aim at patient's pupil with this pupil diameter measuring apparatu's range estimation pore and measure to drive the blade rotation of light ring through rotating the carousel, thereby adjust the survey pupil aperture of light ring, make the survey pupil size that the light ring blade encloses to close stop adjusting after with the coincidence of pupil size, read and record corresponding size through the scale on the carousel. Adopt above-mentioned scheme, the utility model discloses a pupil diameter measuring apparatu can solve the error problem that the human subjective range estimation in the pupil observation leads to with the estimation, can realize quick accurate measurement pupil diameter to be convenient for observe, be convenient for handheld, easy operation, easy to go to the hand.

In this embodiment, the rotating shaft 14 is fixedly provided with the pointer 6 which is matched with the scale value of the rotating disc 5 and does not rotate along with the rotating disc 5, so that the aperture of the aperture pupil corresponding to the scale value on the rotating disc can be clearly and clearly indicated through the pointer. In addition, the main body 1 is a transparent structure to facilitate the observation of the pointer. Of course, the observation window 7 can be opened on the top of the main body and above the pointer in different embodiments, and the above purpose can be achieved.

The visual measurement pore canal 2 and/or the observation window 7 in the embodiment are/is provided with the convex lens, so that the pupil and/or the pointer of the aperture can be enlarged in the visual observation process, the turntable can be better adjusted, the pupil can be matched with the pupil, and the observation can be more convenient and clear.

The main part 1 in this embodiment is being equipped with round light 12 towards patient pupil one side and around range estimation pore 2, and range estimation pore 2 is equipped with horn mouth 13 with light 12 homonymy, and the inner wall of horn mouth 13 is encircleed and is equipped with round light 11, and light 12 and light 11 have different light color, if one is white light, be adapted to daytime and use, auxiliary lighting, a yellow light, be applicable to and use night, can carry out optometry reaction. Meanwhile, the main body 1 is further provided with a bicolor lamp switch 9 for switching on and off the illumination lamp 12 and the illumination lamp 11, a brightness adjusting button 10 for adjusting the brightness of the illumination lamp 12 and the illumination lamp 11, and a power supply 8 for supplying electric energy to the illumination lamp 12 and the illumination lamp 11, wherein the power supply 8 is a dry battery or a rechargeable battery.

When the device is used, the white light and the yellow light can be independently turned on or simultaneously turned on, the white light is used for auxiliary illumination, the yellow light is inclined inwards and looks for the eyeball of a patient to irradiate, the two-color lamp switch is turned on, and the brightness of the illuminating lamp is adjusted through the brightness adjusting button (if the light is weak, the illumination can be turned on simultaneously to turn on for auxiliary illumination). In the course of optometry reaction, the pupil is affected by the change of light intensity, and then the pupil size is changed.

Example two

As shown in fig. 4, the present embodiment is different from the first embodiment in that: the driving mechanism consists of a traction piece 20, a first telescopic piece 21 and a second telescopic piece 22, wherein the first telescopic piece 21 and the second telescopic piece 22 are arranged in parallel, and the traction piece 20 acting on the movable disc 17 of the diaphragm 3 is connected between the first telescopic piece 21 and the second telescopic piece 22. Therefore, the traction piece can rotate the movable disc through the matching relation of the first telescopic piece and the second telescopic piece, and the purpose of adjusting the aperture of the pupil is achieved. This draw piece adopts the stay cord, and first extensible member 21 adopts voice coil motor, and second extensible member 22 adopts the spring, and voice coil motor has and adjusts the precision height, and the fast characteristic of reaction adjusts the light ring better, makes it reach the purpose of accurate measurement pupil diameter in short time.

The main body 1 of the present embodiment is provided with a digital display (not shown) capable of directly displaying the aperture of the pupil 4 of the diaphragm 3. The digital display instrument can quickly, real-timely and visually reflect the pupil measuring aperture of the driving mechanism adjusting aperture, so that medical personnel can conveniently obtain corresponding pupil measuring data.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a pupil diameter measuring apparatu, includes main part (1) and locates light ring (3) in this main part, the light ring has aperture adjustable and surveys pupil (4), a serial communication port, the main part is microscler structure, and its one end portion goes up and runs through the range estimation pore (2) that set up in main part thickness direction, set up in the range estimation pore the light ring, and the survey pupil center of light ring lies in the central axis in range estimation pore, be equipped with in the main part with the cooperation of light ring and be used for adjusting the actuating mechanism who surveys pupil diameter, the opposite side of main part has the shape of being convenient for to hand.

2. The pupil diameter measuring instrument according to claim 1, wherein the driving mechanism comprises a rotating disc (5) and a rotating shaft (14), the rotating shaft is disposed in the main body, the rotating disc is rotatably disposed on the rotating shaft and protrudes out of the main body, and the rotating disc and the aperture are driven by meshing of respective teeth.

3. The pupil diameter measuring instrument according to claim 2, wherein the rotary disk is provided with scale values, the rotating shaft is fixedly provided with a pointer (6) which is matched with the scale values of the rotary disk and does not rotate along with the rotary disk, the main body is of a transparent structure, or the top of the main body is provided with an observation window (7) which is positioned right above the pointer.

4. The pupil diameter measuring instrument according to claim 3, wherein the visual inspection hole and/or the observation window is provided with a convex lens.

5. The pupil diameter measuring instrument according to claim 1, wherein the driving mechanism comprises a traction member (20), a first expansion member (21), and a second expansion member (22), the first expansion member and the second expansion member are arranged in parallel, and a traction member acting on the aperture is connected between the first expansion member and the second expansion member, the traction member is a pull rope, the first expansion member is a push rod or a voice coil motor, and the second expansion member is one of a push rod, a voice coil motor, and a spring.

6. The pupil diameter measuring instrument according to claim 1, wherein the main body is provided with a digital display instrument capable of directly digitally displaying the pupil diameter of the aperture.

7. The pupil diameter measuring instrument according to claim 1, wherein the aperture is composed of a plurality of blades (15), a fixed disk (16), a movable disk (17), a fixed shaft (18) and a movable shaft (19), the plurality of blades are respectively arranged on the fixed disk through one fixed shaft, the plurality of blades are annularly surrounded and form a pupil measuring center on the fixed disk, and the single blade is also arranged on the movable disk which is rotatably arranged in parallel with the fixed disk through one movable shaft.

8. The pupil diameter measuring instrument according to claim 1, wherein the body is provided with a ring of illuminating lamps (12) on the side facing the pupil and around the visual measurement duct, the visual measurement duct is provided with a bell mouth (13) on the same side as the illuminating lamps, and a ring of illuminating lamps (11) are arranged on the inner wall of the bell mouth, and the illuminating lamps have different lamp colors.

9. The pupil diameter measuring instrument according to claim 8, wherein the main body further comprises a two-color lamp switch (9) for turning on and off the illumination lamp and the illumination light, and a brightness adjusting knob (10) for adjusting brightness of the illumination lamp and the illumination light.

10. The pupil diameter measuring instrument according to claim 8, wherein a power supply (8) for supplying power to the illuminating lamp and the illuminating lamp is arranged in the main body, and the power supply adopts dry batteries or rechargeable batteries.