CN204410781U - A kind of hand-held pupillary light reflex automatic detection device - Google Patents
A kind of hand-held pupillary light reflex automatic detection device Download PDFInfo
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- CN204410781U CN204410781U CN201420858669.XU CN201420858669U CN204410781U CN 204410781 U CN204410781 U CN 204410781U CN 201420858669 U CN201420858669 U CN 201420858669U CN 204410781 U CN204410781 U CN 204410781U
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Abstract
The utility model discloses a kind of hand-held pupillary light reflex automatic detection device, belong to technical field of medical instruments.Comprise Handheld Division, be provided with shade in front end, Handheld Division, be provided with CCD camera at front end surface center, Handheld Division, be also respectively equipped with near-infrared light source and LED flash lamp in CCD camera both sides; In Handheld Division, be provided with image storage unit, controller and LCDs, controller is connected with near-infrared light source, LED flash lamp and CCD camera respectively; Circumferentially offer two gathering holes at shade, and the position of two gathering holes is relative.Hand-held pupillary light reflex automatic detection device of the present utility model, reasonable in design, easy and simple to handle, easy to carry, effective Data support can be provided for outdoor first aid.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of pupillary light reflex automatic detection device, is specifically related to a kind of hand-held pupillary light reflex automatic detection device based on near-infrared imaging technology.
Background technology
To luminous reflectance, be the test checking pupillary function activity, point direct light reflex and indirect light reflex.Direct light reflex, usually observes its dynamic response with pocket lamp direct irradiation pupil.Normal person, after eye is subject to light stimulation, pupil reduces immediately, and after removing light source, pupil restores rapidly.Indirect light reflex refers to that light irradiates one at the moment, and another eye pupil hole reduces immediately, removes light platycoria.When checking indirect light reflex, should to obstruct the light on the other hand in order to avoid form direct light reflex to inspection eye exposure.Because the maincenter of pupillary light reflex is in tectum of midbrain proparea, therefore clinically often using it as judging central nervous system pathological change position, the degree of depth of anesthesia and the important indicator of state of an illness severe degree.Pupillary light reflex is widely used in ophthalmology, Anesthesia Department, Neurology Department, neurosurgery, department of pediatrics and Forensic Identification etc.
Checked in the past the general common method of pupil activity be utilize naked depending on directly observing, then judge, this observation has intuitive, but due to the impact of subjective factors very inaccurate, also rapid, cause misjudge because patient s pupil is usually in the marginal value that expands or reduce simultaneously.The detection method improved is that testing staff directly measures patient's through hole with ruler, but this method operation inconvenience, can not feed back in time and judge, easy delay treatment.Utilize light source (pocket lamp) eyes to patient to irradiate, then observe the pupil size of patient, and compare with the pupil deck watch of design on a kind of form, thus determine the size of pupil.This detection method needs medical personnel to carry with light source and pupil deck watch, very inconvenient, but also can cause the reduction of work efficiency.Simultaneously existing method is to pupil size and all not energetic to the time of luminous reflectance, and its evaluation result is also comparatively subjective.
Patent CN202981958U discloses " a kind of portable intelligent pupil detector ", this checkout gear can detect fast, accurately, easily, but also there is distinct disadvantage in this device: this checkout gear detection light source used is still the indoor light source of normality, this visible ray will inevitably be formed eye and stimulate, the result of pupillary light reflex has error, can not react the actual state of measured really.Finally, after shade covers eye, inside does not have secondary light source to carry out imaging; Shade does not have reservation operations mouth, and detected person can not be helped to open eyelid (pupillary light reflex examinee is mainly the indifferent person of consciousness, can not independently open eyes).
Utility model content
In order to overcome the defect that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of hand-held pupillary light reflex automatic detection device, and this apparatus structure simplicity of design is reasonable, can detect fast, accurately, easy to operate, practical.
This utility model is achieved through the following technical solutions:
A kind of hand-held pupillary light reflex automatic detection device, comprises Handheld Division, is provided with shade in front end, Handheld Division, be provided with CCD camera at front end surface center, Handheld Division, be also respectively equipped with near-infrared light source and LED flash lamp in CCD camera both sides; In Handheld Division, be provided with image storage unit, controller and LCDs, controller is connected with near-infrared light source, LED flash lamp and CCD camera respectively; Circumferentially offer two gathering holes at shade, and the position of two gathering holes is relative.
The Opening length of described gathering hole is 1 ~ 2cm.
The outfan of described CCD camera is connected with the input of image storage unit, and the outfan of image storage unit is connected with LCDs.
Handheld Division is also provided with data transmission interface.
Handheld Division is also provided with the touch controlled key be connected with controller.
Compared with prior art, this utility model has following useful technique effect:
Hand-held pupillary light reflex automatic detection device of the present utility model, the end face of front end, Handheld Division is provided with CCD camera, also be respectively equipped with near-infrared light source and LED flash lamp in CCD camera both sides, be provided with image storage unit, controller and LCDs in inside, Handheld Division.The near infrared light that near-infrared light source sends is black light, and therefore can not form light sensation to the eye of measured stimulates, and fully detects measured's initial situation; LED flash lamp then carries out visible ray stimulation to pupil, and its light intensity, light application time are all adjustable; Selected near-infrared light source or LED to dodge to turn off the light to carry out source stimulating to measured by controller, then carry out realtime imaging by CCD camera, obtain feedback result by image storage unit, feedback result is presented in LCDs.Simultaneously, two gathering holes are circumferentially offered at shade, and the position of two gathering holes is relative, the design of this gathering hole is also the relative precision in order to ensure test result, the eyelid that thumb and forefinger open person under inspection is stretched into from the gathering hole of shade, because mostly measured is loss of consciousness, when it is carried out Light-Echo detection, need to see eyelid with handspring, if do not arrange this gathering hole, for some stupors, without the detected object of sense of independence, can not open eyes, then cannot carry out pupil image measurement.Hand-held pupillary light reflex automatic detection device of the present utility model, reasonable in design, easy and simple to handle, easy to carry, effective Data support can be provided for outdoor first aid.
Accompanying drawing explanation
Fig. 1 is the structural front view of hand-held pupillary light reflex automatic detection device of the present utility model;
Fig. 2 is the structure side view of hand-held pupillary light reflex automatic detection device of the present utility model.
Wherein, 1 is Handheld Division; 2 is shade; 3 is near-infrared light source; 4 is LED flash lamp; 5 is CCD camera; 6 is image storage unit; 7 is gathering hole; 8 is LCDs; 9 is controller; 10 is data transmission interface; 11 is touch controlled key.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in further detail, described in be to explanation of the present utility model instead of restriction.
See Fig. 1, hand-held pupillary light reflex automatic detection device of the present utility model, comprises Handheld Division 1, is provided with shade 2 in front end, Handheld Division 1, be provided with CCD camera 5 at front end surface center, Handheld Division 1, be also respectively equipped with near-infrared light source 3 and LED flash lamp 4 in CCD camera 5 both sides; In Handheld Division 1, be provided with image storage unit 6, controller 9 and LCDs 8, controller 9 is connected with near-infrared light source 3, LED flash lamp 4 and CCD camera 5 respectively, and Handheld Division 1 is also provided with the touch controlled key 11 be connected with controller 9.The outfan of described CCD camera 5 is connected with the input of image storage unit 6, and the outfan of image storage unit 6 is connected with LCDs 8.Handheld Division 1 is also provided with data transmission interface 10.See Fig. 2, circumferentially offer two gathering holes 7 at shade 2, and the position of two gathering holes 7 is relative.Gathering hole Opening length is 1 ~ 2cm, the design of this gathering hole is also the relative precision in order to ensure test result, the eyelid that thumb and forefinger open person under inspection is stretched into from the gathering hole of shade, because mostly measured is loss of consciousness, when carrying out Light-Echo detection it, need to see eyelid with handspring, if do not arrange this gathering hole, for some stupors, without the detected object of sense of independence, can not open eyes, then cannot carry out pupil image measurement.
This device is primarily of shade, near-infrared light source, LED flash lamp, CCD camera, image storage unit, controller, LCDs and electric power generating composition.
Wherein shade is used for covering on detected eye, isolates extraneous light to impact; For ease of assisting person under inspection to open eyelid when detecting, slotted eye is respectively stayed in shade both sides.
Near-infrared light source sends near infrared light to detected eye (near infrared light is black light, and can not form light sensation to eye stimulates), and namely near-infrared light source is worked by Power supply after the start of this device.
Namely CCD camera is worked by Power supply after the start of this device, and LED flash lamp is used for carrying out visible ray stimulation to pupil, and its light intensity, light application time are adjustable, control by controller;
The using method of this utility model hand-held pupillary light reflex automatic detection device:
(1) opening device power supply;
(2) shade is covered in tested eye;
(3) eyelid is opened from shade two gathering hole fingers circumferentially;
(4) pupil image be presented in LCDs of being taken by CCD camera is observed;
(5) after pupil image is clear, touch the touch controlled key be connected with controller, trigger the of short duration luminescence of LED flash lamp;
(6) pupil image is observed until terminate luminous reflectance change.
Device described in the utility model is under the impact not being subject to extraneous visible ray, and concrete detection implementation process is as follows:
Shade is covered in above eye subject ball, cover the visible ray of extraneous front directive pupil, the eyelid that thumb and forefinger open person under inspection is stretched into from shade side notch, now eyeball forms reflection under this device front end near-infrared light source irradiates, but near infrared light is black light, can not produces pupil and stimulate.Eyeball to be shown in the LCDs of checkout gear rear end by CCD camera Real-time Collection in real time to the reflected image of near infrared light.
Claims (5)
1. a hand-held pupillary light reflex automatic detection device, it is characterized in that, comprise Handheld Division (1), shade (2) is provided with in Handheld Division (1) front end, be provided with CCD camera (5) at Handheld Division (1) front end surface center, be also respectively equipped with near-infrared light source (3) and LED flash lamp (4) in CCD camera (5) both sides; In Handheld Division (1), be provided with image storage unit (6), controller (9) and LCDs (8), controller (9) is connected with near-infrared light source (3), LED flash lamp (4) and CCD camera (5) respectively; Circumferentially offer two gathering holes (7) at shade (2), and the position of two gathering holes (7) is relative.
2. a kind of hand-held pupillary light reflex automatic detection device according to claim 1, is characterized in that, the Opening length of described gathering hole (7) is 1 ~ 2cm.
3. a kind of hand-held pupillary light reflex automatic detection device according to claim 1, it is characterized in that, the outfan of described CCD camera (5) is connected with the input of image storage unit (6), and the outfan of image storage unit (6) is connected with LCDs (8).
4. a kind of hand-held pupillary light reflex automatic detection device according to claim 1, is characterized in that, Handheld Division (1) is also provided with data transmission interface (10).
5. a kind of hand-held pupillary light reflex automatic detection device according to claim 1, is characterized in that, Handheld Division (1) is also provided with the touch controlled key (11) be connected with controller (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858669.XU CN204410781U (en) | 2014-12-30 | 2014-12-30 | A kind of hand-held pupillary light reflex automatic detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420858669.XU CN204410781U (en) | 2014-12-30 | 2014-12-30 | A kind of hand-held pupillary light reflex automatic detection device |
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| CN204410781U true CN204410781U (en) | 2015-06-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018203828A1 (en) * | 2017-05-02 | 2018-11-08 | Singapore Health Services Pte Ltd | Hand held ophthalmic and neurological screening device |
| RU2744548C1 (en) * | 2020-04-29 | 2021-03-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Алтайский государственный университет" | Device for determining pupillary responses to visual stimulus |
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2014
- 2014-12-30 CN CN201420858669.XU patent/CN204410781U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018203828A1 (en) * | 2017-05-02 | 2018-11-08 | Singapore Health Services Pte Ltd | Hand held ophthalmic and neurological screening device |
| CN110582226A (en) * | 2017-05-02 | 2019-12-17 | 新加坡保健服务集团有限公司 | Handheld ophthalmic and neurologic screening device |
| US11576575B2 (en) | 2017-05-02 | 2023-02-14 | Singapore Health Services Pte Ltd | Hand held ophthalmic and neurological screening device |
| RU2744548C1 (en) * | 2020-04-29 | 2021-03-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Алтайский государственный университет" | Device for determining pupillary responses to visual stimulus |
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