CN203898264U - Portable testing device for pupil reaction sensitivity - Google Patents
Portable testing device for pupil reaction sensitivity Download PDFInfo
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- CN203898264U CN203898264U CN201420326405.XU CN201420326405U CN203898264U CN 203898264 U CN203898264 U CN 203898264U CN 201420326405 U CN201420326405 U CN 201420326405U CN 203898264 U CN203898264 U CN 203898264U
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Abstract
The utility model discloses a portable testing device for pupil reaction sensitivity. The portable testing device comprises a highlight LED lamp, a CCD camera, a microprocessor, a shell, nixie tubes, a battery and a switch. The CCD camera is adopted for being aligned to one eye of a patient, a frame of image data are collected by the microprocessor through a decoding chip, and the diameter of the pupil can be obtained through calculation. The microprocessor controls the highlight LED lamp to be lighted through the input and output nixie tubes, the pupil of the patient is stimulated, another frame of image is collected, and the diameter of the pupil after being stimulated by high light can be obtained through calculation in the same way. The larger the ratio of the two diameters before and after simulation is, more sensitive the reaction of the patient is, and more obvious the vital signs are. The ratio of the two diameters before and after simulation is divided into four levels, displayed on the nixie tubes and used by a doctor for intuitively judging the illness state and changes of the patient. The pupil reaction sensitivity of the patient is tested automatically, and the portable testing device is safe and convenient to use, high in accuracy and capable of effectively overcoming the defects of visual testing of the doctor from experience.
Description
Technical field
This utility model relates to medical testing equipment field, is specifically related to a kind of portable pupillary reaction sensibility testing arrangement.
Background technology
For neural training patient and critical patient, doctor generally uses Medical flashlight, irradiates patient's eyes, and the sensitivity of definite patient to high light reaction, thereby whether qualitatively judge patient vital signs obvious.Pupil size and the variation to illumination reaction sensitivity, directly indicating advancing of disease situation.
Clinical tradition is estimated rough estimate by observer always, and the method error is large, and accuracy is low, and affected greatly by observer personal experience.
The Pupillometer of prior art, generally adopts industrial computer platform, more complicated on collection, storage, analysis and the output program of information, and volume and power consumption large, cost is high, carries inconvenience, especially can not be widely used critical patient's sick bed is other.
Utility model content
For solving the deficiencies in the prior art, the utility model proposes a kind of portable pupillary reaction sensibility testing arrangement, can automatic ration test patient pupil sensitivity to high light reaction, volume is little, lightweight, the similar Mini flash light of shape, carry and clinical very easy to use, can be doctor and judge that at any time patient's vital sign power provides foundation.
This utility model is to be achieved through the following technical solutions:
Further improvement of the utility model comprises:
A kind of portable pupillary reaction sensibility testing arrangement, comprise flashlight type housing, in flashlight type housing, from afterbody to top, be disposed with the CCD photographic head of battery, power supply control and measurement gauge tap, microprocessor, high-brightness LED lamp and collection measured pupil data, on described flashlight type housing, be provided with display device, power control switch is connected with battery, battery is connected with display device, microprocessor, high-brightness LED lamp and CCD photographic head, and microprocessor is connected with CCD photographic head with display device, measurement gauge tap, high-brightness LED lamp.
This device also comprises the USB interface that can the pupil image of collection be copied on external USB flash disk or be directly connected to printer output printing.
Described battery is chargeable lithium cell.
Described display device is charactron, liquid crystal display screen or LED dot matrix screen.
Described microprocessor is low-power consumption dsp processor, ARM or single-chip microcomputer.
Described CCD photographic head is low-light (level) ccd sensor photographic head.
This device also comprises manual LED light source output switch.
Compared with prior art, the utlity model has following useful technique effect:
The portable pupillary reaction sensibility testing arrangement that this utility model provides, by being set, CCD photographic head is connected with microprocessor with CCD photographic head with high-brightness LED lamp and by high-brightness LED lamp, by two two field pictures of pupil before and after the illumination of CCD camera collection, calculate pupil diameter, by the diameter before and after pupil illumination, change, quantitatively determine pupillary reaction sensitivity, the ratio of former and later two diameters is larger, the reaction that represents patient is sensitiveer, and vital sign is more obvious.Adopt battery powered, microprocessor, volume is little, lightweight, is easy to carry and one man operation.And described pupillary reaction sensibility testing arrangement, adopts flashlight type housing, facilitates doctor's one-handed performance, and another hands can open critical patient's eyelid.
This device volume is little, lightweight, is easy to carry and clinical use, can automatically provide patient's pupillary reaction sensitivity number, avoids doctor to judge by rule of thumb and occurs error.
Further, this device, simultaneously with USB interface, can copy the pupil image collecting on external USB flash disk to, or is directly connected to printer output printing, has facilitated so the fast and accurately analysis of doctor to pupil data.
Further, the photographic head that this device is used, for low-light (level) ccd sensor photographic head, has automatic focusing function, can reach 5,000,000 pixels, under low light condition, also can photograph picture clearly.
Further, described device has manual LED light source output switch simultaneously, can replace conventional medical pocket lamp.Meanwhile, this device adopts rechargeable lithium ion batteries power supply, can realize recycling.
Further, by level Four, divide the ratio of former and later two diameters, be presented on charactron, can be for doctor's intuitive judgment conditions of patients weight and variation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that this utility model is to pupillometry principle demonstration figure.
In figure:
1, flashlight type housing; 2, charactron; 3, battery; 4, power supply control and measurement gauge tap; 5, low-power consumption dsp processor; 6, high-brightness LED lamp; 7, CCD photographic head; 8, pupil; 9.LED light schematic lines.
The specific embodiment
Below in conjunction with specific embodiment, this utility model is described in further detail, described in be to explanation of the present utility model rather than restriction.
With reference to Fig. 1, a kind of portable pupillary reaction sensibility testing arrangement, comprises flashlight type housing 1, charactron 2, chargeable lithium cell 3, power supply control and measurement gauge tap 4, low-power consumption dsp processor 5, high-brightness LED lamp 6, low-light (level) ccd sensor photographic head 7.In flashlight type housing 1, from afterbody to top, be disposed with chargeable lithium cell 3, power supply control and measurement gauge tap 4, low-power consumption dsp processor 5, the low-light (level) ccd sensor photographic head 7 of high-brightness LED lamp 6 and collection measured pupil 8 data, on described flashlight type housing 1, be provided with display device, power control switch is connected with chargeable lithium cell 3, chargeable lithium cell 3 and display device, low-power consumption dsp processor 5, high-brightness LED lamp 6 is connected with low-light (level) ccd sensor photographic head 7, low-power consumption dsp processor 5 and display device, measure gauge tap, high-brightness LED lamp 6 is connected with low-light (level) ccd sensor photographic head 7.Wherein, described display device can also be the display device of other types such as liquid crystal display screen or LED dot matrix screen, and microprocessor also comprises other microprocessors such as ARM or single-chip microcomputer.
Described low-power consumption dsp processor 5, for to the low-light (level) ccd sensor photographic head 7 receiving to the frame image data without pupil before photostimulation of its transmission and be subject to high light stimulate after another frame image data of pupil calculate, draw without the diameter of pupil before photostimulation and be subject to high light stimulate after the diameter of pupil, and the ratio of former and later two pupil diameter of measuring be divided into four grades be presented on charactron.
Further, this device also comprises and the pupil image of collection can be copied on external USB flash disk, or is directly connected to the USB interface that printer output is printed.Wherein, microprocessor drives chip to be connected to USB interface by USB.In addition, this device also comprises manual LED light source output switch.
The flow process of device work is: after power control switch 4 is opened, chargeable lithium cell 3 is converted into the required voltage source of each module of device by the voltage-regulation of internal circuit, each module starts normal startup, after ready, charactron 2 can be reminded in flicker, and now, user side can have this utility model device one end of CCD photographic head 7 to aim at measured's pupil 8, regularly, finger touches measurement gauge tap 4 to start to measure distance one between holding device and pupil 8.First measure the pupil 8 without photostimulation, low-light (level) CCD photographic head 7 is sent to low-power consumption dsp processor 5 by the pupil collecting 8 image frame data by internal circuit and carries out data computing, after completing, low-power consumption dsp processor 5 can be opened high-brightness LED lamp 6 intelligently automatically, dsp processor can be waited for several seconds, the variation that pupil 8 is highlighted 6 photostimulation of LED lamp tends towards stability, start again to measure the pupil 8 that has photostimulation, equally, low-light (level) CCD photographic head 7 is sent to low-power consumption dsp processor 5 by the pupil collecting 8 image frame data and carries out data computing, complete after twice measurement of pupil diameter variation, low-power consumption dsp processor 5 can compare analyzing and processing to two secondary data, charactron 2 on can leaning to one side by flashlight type housing 1 after completing demonstrates the result of measurement.From touching the measurement gauge tap 4 of this utility model device, arrive the demonstration of result all without human intervention, dsp processor can complete whole measuring process automatically, until result is presented on charactron 2.
With reference to Fig. 2, with example, set forth the principle that this utility model is realized pupillary reaction sensitivity test.
People's eyes are divided into white portion, brown part, black part (pupil).The shade of three parts is different.Dsp processor by CCD camera collection to image be that resolution is the rgb matrix of 800*600 pixel, each pixel is with red (R), green (G), the value of blue each byte data of (B) three kinds of pigments is described the color of this point.Dsp processor algorithm is, calculates respectively RGB weighted mean corresponding to this 800*600 pixel, and the blackness that is worth this point of less expression is larger.By comparing the blackness value of these pixels, can tell this pixel is in black part, or brown part, or white portion.Then can show that 800*600 pixel has how many to belong to white portion, how many belong to brown part, and how many belong to black part, thereby draw eyes white portion, brown part, the relative scale of black part (pupil) area.The ratio of the total area that black part is shared is larger, represents that the diameter of pupil is larger.
The area of measuring eyes black part (pupil) by opening LED lamp front and back for twice accounts for the ratio of the area of whole eyes, can obtain the quantitative data of the sensitivity of pupil contraction, thus the vigorous degree of judgement patient vital signs.
The beneficial effect of this device is: the algorithm measurement of use be the relative scale that pupil accounts for whole eyes, rather than the absolute diameter of pupil, when therefore two two field pictures are taken, can be variant with the distance of eyes, do not affect result of calculation.
Another beneficial effect is that device volume is little, lightweight, is easy to carry and clinical use, can automatically provide patient's pupillary reaction sensitivity number, avoids doctor to judge by rule of thumb and occurs error.
This device adopts low-light (level) CCD photographic head, aims at patient's eye, and dsp processor is by being integrated in dsp processor inside and gathering a frame image data for analog-to-digital decoding chip, by can be calculated pupil diameter.Then, dsp processor is controlled high-brightness LED lamp by the pin of input and output and is lighted, and stimulates patient's pupil, and gathers another frame image data of pupil, by same algorithm, is drawn and is subject to high light to stimulate the diameter of pupil afterwards.The ratio of former and later two diameters is larger, represents that patient's reaction is sensitiveer, and vital sign is more obvious.By level Four, divide the ratio of former and later two diameters, be presented on charactron, can be for doctor's intuitive judgment conditions of patients weight and variation.
Further, described this device, simultaneously with USB interface, can copy the pupil image of collection on external USB flash disk to, or is directly connected to printer output printing.This device also can directly generate the examining report of set form, by USB interface, exports.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; this utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed this utility model.The claimed scope of this utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. a portable pupillary reaction sensibility testing arrangement, it is characterized in that, comprise flashlight type housing (1), in flashlight type housing (1), from afterbody to top, be disposed with battery (3), power supply control and measurement gauge tap (4), microprocessor, the CCD photographic head (7) of high-brightness LED lamp (6) and collection measured's pupil (8) data, on described flashlight type housing (1), be provided with display device, power control switch is connected with battery (3), battery (3) and display device, microprocessor, high-brightness LED lamp (6) is connected with CCD photographic head (7), microprocessor and display device, measure gauge tap, high-brightness LED lamp (6) is connected with CCD photographic head (7).
2. portable pupillary reaction sensibility testing arrangement according to claim 1, is characterized in that, this device also comprises the USB interface that can the pupil image of collection be copied on external USB flash disk or be directly connected to printer output printing.
3. portable pupillary reaction sensibility testing arrangement according to claim 1, is characterized in that, described battery (3) is chargeable lithium cell.
4. portable pupillary reaction sensibility testing arrangement according to claim 1, is characterized in that, described display device is charactron (2), liquid crystal display screen or LED dot matrix screen.
5. portable pupillary reaction sensibility testing arrangement according to claim 1, is characterized in that, described microprocessor is low-power consumption dsp processor (5), ARM or single-chip microcomputer.
6. portable pupillary reaction sensibility testing arrangement according to claim 1, is characterized in that, described CCD photographic head (7) is low-light (level) ccd sensor photographic head.
7. portable pupillary reaction sensibility testing arrangement according to claim 1, is characterized in that, this device also comprises manual LED light source output switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326405.XU CN203898264U (en) | 2014-06-18 | 2014-06-18 | Portable testing device for pupil reaction sensitivity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326405.XU CN203898264U (en) | 2014-06-18 | 2014-06-18 | Portable testing device for pupil reaction sensitivity |
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| CN203898264U true CN203898264U (en) | 2014-10-29 |
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| CN201420326405.XU Active CN203898264U (en) | 2014-06-18 | 2014-06-18 | Portable testing device for pupil reaction sensitivity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068824A (en) * | 2014-06-18 | 2014-10-01 | 荔志云 | Portable pupil response sensitivity testing device |
| CN108968910A (en) * | 2018-08-14 | 2018-12-11 | 哈尔滨海鸿基业科技发展有限公司 | Diabetic eye diseases early screening device |
| CN113551165A (en) * | 2021-07-26 | 2021-10-26 | 常州市第一人民医院 | Pupil detection flashlight for neurosurgery |
-
2014
- 2014-06-18 CN CN201420326405.XU patent/CN203898264U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068824A (en) * | 2014-06-18 | 2014-10-01 | 荔志云 | Portable pupil response sensitivity testing device |
| CN108968910A (en) * | 2018-08-14 | 2018-12-11 | 哈尔滨海鸿基业科技发展有限公司 | Diabetic eye diseases early screening device |
| CN113551165A (en) * | 2021-07-26 | 2021-10-26 | 常州市第一人民医院 | Pupil detection flashlight for neurosurgery |
| CN113551165B (en) * | 2021-07-26 | 2023-02-07 | 常州市第一人民医院 | Pupil detection flashlight for neurosurgery |
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