An optical testing device based on intelligent pupil monitoring

Abstract

The present invention relates to the field of medical device technology, and more particularly to an optical testing device based on intelligent pupil monitoring, comprising a wearable module, an eyelid guidance module, a shooting module, an illumination module, a supplementary determination module, and an intelligent control module. The intelligent control module controls the eyelid guidance module to open the patient's eyelids based on an initial eye image, determines the patient's light reflex tendency based on a standard image of both pupils and a video of both eyes during the optical test, and determines the patient's light reflex status and whether to issue an alarm based on the determination result of the light reflex tendency combined with the patient data from the supplementary determination module. The present invention not only accurately determines the patient's pupil reflex status but also issues an alarm in a timely manner, helping medical staff quickly respond to possible visual or neurological problems with the patient. This device not only improves diagnostic efficiency and accuracy but also provides patients with more detailed and personalized medical monitoring services.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an optical testing device based on intelligent pupil monitoring. Background Art

[0002] In current clinical practice, the assessment of pupil size, shape, and direct and indirect light reflex sensitivity in patients with impaired consciousness primarily relies on the subjective judgment of clinical medical staff using a handheld optical pupillometer pen, which is highly subjective and subject to large errors. Some patients with impaired consciousness, such as those suffering from cerebral hemorrhage, cerebral infarction, or those in the acute phase of craniocerebral surgery, experience rapid changes in their condition, requiring medical staff to promptly detect changes in pupil size, shape, and light reflex sensitivity. However, frequent pupil observation significantly increases the workload of medical staff, and there is a risk that patients may die or become disabled due to medical staff's failure to promptly detect pupil changes. Furthermore, the current clinical significance of changes in pupil size, shape, and light reflex sensitivity is based on the subjective judgment of clinical medical researchers, lacking objective standards. It is therefore of great significance to use modern intelligent equipment to accurately assess these data and then combine them with clinical conditions to establish objective standards.

[0003] Chinese Patent Publication No. CN117238197A discloses an integrated mechanical pupil light reflex device, comprising a main body component having a first mounting cavity within the main body; a partition component disposed within the first mounting cavity and having a first through hole disposed thereon; a rotating component disposed within the main body component; a plurality of aperture components of varying diameters disposed on the rotating component; a light-transmitting component disposed on the first support component; and a photosensitive detection component disposed on the inner wall of a second chamber. The photosensitive detection component receives light and converts it into an electrical signal, which is then fed back to the rotating component, thereby changing the position of the various aperture components on the rotating component to adjust the through hole. By providing the rotating component with a plurality of aperture components of varying diameters, pupils of varying sizes are simulated. By rotating the rotating component using external drive, internal drive, and gear rotation, the aperture components are switched and adjusted, resulting in a faster and more accurate adjustment. This invention therefore fails to consider how to keep the patient's eyes open for pupil light reflex testing. Summary of the Invention

[0004] To this end, the present invention provides an optical testing device based on intelligent pupil monitoring to overcome the problem in the prior art that it is impossible to keep the patient's eyes open to perform pupil light reflex testing.

[0005] To achieve the above objectives, the present invention provides an optical testing device based on intelligent pupil monitoring, comprising:

[0006] a wearable module comprising a fixing unit for fixing the optical testing device on the patient's head and a connecting unit for supporting the optical testing device;

[0007] an eyelid guiding module, connected to the wearable module, for holding open the patient's eyelids;

[0008] a shooting module connected to the eyelid guidance module to obtain the patient's initial eye image, standard images of both pupils, and a video of the patient's eyes during the test;

[0009] an illumination module connected to the eyelid guiding module, configured to emit a stimulating light source to cause the patient's pupil to react to light reflex;

[0010] A supplementary determination module is provided to obtain patient data monitored by an external transcranial Doppler blood flow analyzer and electroencephalogram (EEG);

[0011] an intelligent control module, which is respectively connected to the wearing module, the eyelid guidance module, the shooting module, the illumination module, and the supplementary determination module, and is used to control the eyelid guidance module to open the patient's eyelids according to the initial eye image, determine the patient's light reflex tendency according to the standard image of the pupils of both eyes and the video of the patient's eyes during the optical test, and determine the patient's light reflex condition and whether to issue an alarm based on the determination result of the light reflex tendency combined with the patient data of the supplementary determination module.

[0012] Furthermore, the initial eye image includes a closed-eye photo of the patient's eyebrows and eye bags.

[0013] Furthermore, the eyelid guiding module includes two eyelid guiding components of the same structure, and a single eyelid guiding component includes an eyelid separator and a pressure sensor;

[0014] The eyelid separator includes an upper eyelid separator for supporting the upper eyelid to open the upper eyelid and a lower eyelid separator for supporting the lower eyelid to open the lower eyelid;

[0015] The pressure sensor includes an upper pressure sensor for determining the pressure value between the upper eyelid separator and the upper eyelid, and a lower pressure sensor for determining the pressure value between the lower eyelid separator and the lower eyelid. The upper pressure sensor is located at one end of the upper eyelid separator close to the eyelid, and the lower eyelid separator is located at one end of the lower eyelid separator close to the eyelid.

[0016] Furthermore, the intelligent control module determines whether the corresponding eyelid separator is extended to the preset position of the eyelid according to the pressure value determined by the pressure sensor, wherein:

[0017] If the pressure value is greater than or equal to the preset pressure value, it is determined that the eyelid is extended to the preset position;

[0018] If the pressure value is less than the preset pressure value, it is determined that the eyelid has not been extended to the preset position of the eyelid;

[0019] The pressure value determined by the pressure sensor should be smaller than a pressure reference value, and the pressure reference value is larger than a preset pressure value.

[0020] Furthermore, the intelligent control module determines the upward movement distance of the corresponding upper eyelid separator based on the judgment result that the eyelid separator is extended to the preset eyelid position and the distance between the eyelid slit of each eye and the corresponding eyebrow in the initial eye image.

[0021] Furthermore, the intelligent control module determines the downward movement distance of the corresponding lower eyelid separator according to the upward movement distance of the single upper eyelid separator and the distance between the eyelid slit of the corresponding eye and the bottom of the corresponding eye bag in the initial eye image.

[0022] Furthermore, the intelligent control module determines the initial pupil diameter of the patient based on the standard binocular pupil image, determines the reaction time for the pupil diameter to be equal to the preset diameter based on the binocular video of the patient during a single optical test, and determines the patient's single light reflex tendency based on the reaction time, including:

[0023] If the reaction time is less than or equal to the preset reaction time, the patient's single light reflex tendency is determined to be a strong reaction tendency;

[0024] If the reaction time is greater than the preset reaction time, it is determined that the patient's single light reflex tendency is a weak reaction tendency.

[0025] Furthermore, the intelligent control module determines the test frequency of the optical testing device according to the determination result of the light reflection tendency, wherein:

[0026] If the single light reflection tendency is a strong reaction tendency, determining that the optical testing device performs an optical test according to a preset test frequency;

[0027] If the single light reflection tendency is a weak reaction tendency, the optical testing device determines the optical testing frequency according to the preset test frequency, the corresponding reaction time and the ratio of the preset reaction time.

[0028] Furthermore, if the single light reflex tendency is a weak reaction tendency, the intelligent control module performs a preset period of optical testing on the patient according to the determined optical test frequency and determines whether to issue an alarm for the light reflex situation according to the test results, including:

[0029] If the test result still shows a weak reaction tendency, the light reflex is determined to be a vanishing light reflex and an alarm is issued;

[0030] If the test result shows a strong reaction tendency, the light reflex is determined to be normal and whether to issue an alarm is determined based on the patient data;

[0031] The test result is determined according to an average value of the reaction time of the optical test in a preset period.

[0032] Furthermore, the intelligent control module determines whether the optical testing device issues an alarm based on the determination result of normal light reflex and the patient data, including:

[0033] If the Doppler blood flow analyzer shows insufficient blood perfusion or the electroencephalograph shows the presence of abnormal waves, the optical testing device is determined to issue an alarm.

[0034] Compared with the existing technology, the beneficial effect of the present invention lies in that the optical testing device for intelligent pupil monitoring provided by the present invention can stably fix the optical testing device on the patient's head and effectively open the patient's eyelids through the wearable module and the eyelid guidance module, thereby ensuring the acquisition of clear eye images and video data; the shooting module enables the device to obtain the patient's initial eye image, standard image of both eyes' pupils and binocular video during the test process, and these data are crucial for subsequent analysis and judgment; the illumination module can accurately stimulate the patient's pupils, observe their reflection of light, and further evaluate the patient's visual function and nervous system response; the role of the supplementary determination module is to connect to other medical equipment, such as a transcranial Doppler blood flow analyzer and an electroencephalogram, and the monitored patient data can provide a more comprehensive health status reference.

[0035] Furthermore, the intelligent control module automatically adjusts the eyelid guidance module's opening degree based on the initial eye image, analyzes the patient's light reflex tendency based on the standard pupil image and test video, and makes a comprehensive assessment based on data from the supplementary determination module. This combined analysis not only accurately determines the patient's pupil reflex condition but also issues a timely alert, helping medical staff quickly respond to possible visual or neurological issues. Therefore, this device not only improves diagnostic efficiency and accuracy but also provides patients with more detailed and personalized medical monitoring services. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a flow chart of the optical testing device based on intelligent pupil monitoring of the present invention;

[0037] Figure 2 Schematic diagram of an eyelid guidance module according to an embodiment of the present invention;

[0038] Figure 3 is a schematic diagram of an eyelid guide assembly according to an embodiment of the present invention;

[0039] Figure 4This is a schematic structural diagram of a support rod on a side away from the back plate according to an embodiment of the present invention;

[0040] In the figure: 1, horizontal beam; 2, horizontal slide; 3, eyelid guide assembly; 4, middle vertical slide; 5, vertical slides at both ends; 6, upper eyelid separator; 7, lower eyelid separator; 8, support rod; 9, backboard; 10, shooting module; 11, lighting module. DETAILED DESCRIPTION

[0041] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0042] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0043] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0044] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] See also Figure 1 , which is a connection diagram of an optical testing device based on intelligent pupil monitoring according to an embodiment of the present invention. The present invention provides an optical testing device based on intelligent pupil monitoring, comprising:

[0046] The wearable module includes a fixing unit for fixing the optical testing device on the patient's head and a connecting unit for supporting the optical testing device. The fixing unit is conventional and can be configured as a helmet or glasses, and can fix the optical testing device on the patient's head. The connecting unit is used to connect the eyelid guide module to the fixing unit. It is also conventional and can be fixed or detachable.

[0047] an eyelid guiding module, connected to the wearable module, for holding open the patient's eyelids;

[0048] A shooting module 10, which is connected to the eyelid guidance module and is used to obtain the patient's initial eye image, standard images of both eyes' pupils, and a video of the patient's eyes during the test;

[0049] an illumination module 11 connected to the eyelid guiding module and configured to emit a stimulating light source to cause the patient's pupil to react to light reflex;

[0050] A supplementary determination module is used to obtain patient data monitored by an external transcranial Doppler blood flow analyzer (transcranial cerebral blood flow monitoring technology) and an electroencephalogram (scalp EEG monitoring technology). It is understandable that transcranial cerebral blood flow monitoring technology (TCD) is mainly used to assess cerebral blood flow, while scalp EEG monitoring technology (EEG) focuses on assessing the electrical activity of the cerebral cortex. The two can comprehensively assess the patient's state of consciousness;

[0051] an intelligent control module, which is respectively connected to the wearing module, the eyelid guidance module, the shooting module 10, the illumination module 11, and the supplementary determination module, and is used to control the eyelid guidance module to open the patient's eyelids according to the initial eye image, determine the patient's light reflex tendency according to the standard image of the pupils of both eyes and the video of the patient's eyes during the optical test, and determine the patient's light reflex condition and whether to issue an alarm based on the determination result of the light reflex tendency combined with the patient data of the supplementary determination module.

[0052] It is understandable that a transcranial Doppler blood flow analyzer is a medical device that uses the ultrasonic Doppler effect to detect changes in intracranial vascular hemodynamics. It places an ultrasonic probe on the scalp, transmits ultrasonic waves into the skull, and receives the reflected sound wave signals. Based on the principle of the Doppler effect, it analyzes the changes in the sound wave signals, thereby monitoring parameters such as cerebral blood flow velocity, blood volume, pulsatility index, spectral morphology and blood flow direction in real time and non-invasively; an electroencephalograph is an electrophysiological monitoring method that records brain electrical activity in a non-invasive manner. It uses multiple electrodes placed on the scalp to record the brain's spontaneous electrical activity over a period of time, and after amplifying, filtering, denoising, and other processing of these weak electrical signals, it displays them on the screen or records them for analysis.

[0053] Specifically, the initial eye image includes a closed-eye photo of the patient's eyebrows and eye bags.

[0054] See also Figure 2 and Figure 3As shown, they are respectively a schematic diagram of an eyelid guide module of an embodiment of the present invention and a schematic diagram of an eyelid guide assembly of an embodiment of the present invention. Specifically, the eyelid guide module includes two eyelid guide assemblies 3 with identical structures and a crossbeam 1 for connecting the eyelid guide assemblies 3. In implementation, a transverse groove 2 is provided on the side of the crossbeam 1 close to the eyelid guide module, so that the sliders of each eyelid guide assembly 3 close to the side of the crossbeam 1 can move horizontally on the transverse groove 2 and are all perpendicular to the crossbeam 1. It can be understood that the more transverse grooves 2 there are, the more stable the eyelid guide assembly 3 is. Generally, the number of transverse grooves 2 = the number of sliders on a single eyelid guide assembly 3 ≥ 2. Preferably, the number of transverse grooves 2 = the number of sliders on a single eyelid guide assembly 3 = 2;

[0055] The single eyelid guide assembly 3 includes an eyelid separator and a pressure sensor, and further includes a back plate 9 connected to the crossbeam 1, a support rod 8 slidably connected to the back plate 9, and three vertical slide grooves provided on the side of the back plate 9 close to the eyelid separator;

[0056] The eyelid separator includes an upper eyelid separator 6 for supporting the upper eyelid to open the upper eyelid and a lower eyelid separator 7 for supporting the lower eyelid to open the lower eyelid. In practice, the eyelid separator is a telescopic structure. When not worn, the eyelid separator is retracted to the shortest position. After wearing, it is extended according to the different needs of each patient.

[0057] The pressure sensor includes an upper pressure sensor for determining the pressure value between the upper eyelid separator 6 and the upper eyelid, and a lower pressure sensor for determining the pressure value between the lower eyelid separator 7 and the lower eyelid. The upper pressure sensor is located at one end of the upper eyelid separator 6 close to the eyelid, and the lower eyelid separator 7 is located at one end of the lower eyelid separator 7 close to the eyelid.

[0058] like Figure 4 , which is a schematic diagram of the structure of the support rod away from the back plate of an embodiment of the present invention. In practice, the camera module 10 and the illumination module 11 are disposed on the support rod 8, with the camera module 10 located at the center of the support rod 8 and the illumination modules 11 located around the camera module 10. The distances between each illumination module 11 and the camera module 10 are equal, and the distances between any two adjacent illumination modules 11 are equal. The number of illumination modules 11 is ≥ 2, and four are provided in this embodiment. The support rod 8 is connected to the middle vertical slide 4 so that the support rod 8 can move vertically thereon. The eyelid separator is connected to the vertical slides 5 at both ends so that the eyelid separator can move vertically thereon.

[0059] It can be understood that a single optical testing device includes an eyelid guiding module, a single eyelid guiding module includes two eyelid guiding components 3, a single eyelid guiding component 3 includes an upper eyelid separator 6 and a lower eyelid separator 7, an upper pressure sensor is installed on the single upper eyelid separator 6, and a lower pressure sensor is installed on the single lower eyelid separator 7.

[0060] In practice, a friction material, such as rubber, is attached to the side of the eyelid separator away from the back plate 9 (ie, the side in contact with the patient's eyelid).

[0061] During implementation, due to individual differences, when each patient wears the optical testing device, the intelligent control module must first move the two eyelid guide components 3 left and right according to the patient's eye video taken by the shooting module 10 to the plane where the corresponding support rod 8 center point, the corresponding eyelid slit midpoint and the back plate 9 center point are located, which is perpendicular to the beam 1; then move the support rod 8 until the line connecting the support rod 8 and the eyelid slit midpoint is perpendicular to the beam 1; then move the eyelid separator to the upper and lower sides of the support rod 8 (close to the support rod 8), where the upper eyelid separator 6 should be pressed against the upper eyelid after being extended, and the lower eyelid separator 7 should be pressed against the lower eyelid after being extended.

[0062] In practice, the intelligent control module determines whether the eyelid guiding module is working properly based on whether the shooting module 10 can capture the complete black eyeball. If the complete black eyeball is not captured, the intelligent control module controls the eyelid guiding module to reopen the patient's eyelids.

[0063] Specifically, the intelligent control module determines whether the corresponding eyelid separator is extended to the preset position of the eyelid according to the pressure value determined by the pressure sensor, wherein:

[0064] If the pressure value is greater than or equal to the preset pressure value, it is determined that the eyelid is extended to the preset position;

[0065] If the pressure value is less than the preset pressure value, it is determined that the eyelid has not been extended to the preset position of the eyelid;

[0066] The pressure value determined by the pressure sensor should be smaller than a pressure reference value, and the pressure reference value is larger than a preset pressure value.

[0067] It can be understood that the preset position is a position where the eyelid separator is in close contact with the corresponding eyelid and can drive the eyelid to move along with the eyelid separator to open the eye.

[0068] In practice, the preset pressure value is determined based on extensive experimentation and is set to the minimum pressure required to move the eyelids with the eyelid separator. Generally, the preset pressure value is less than 20 N, and is preferably set to 10 N. The reference pressure value is the maximum pressure required to move the eyelids with the eyelid separator (a pressure too high may damage the patient's eye tissue), and is typically set to 50 N.

[0069] Specifically, the intelligent control module determines the upward movement distance of the corresponding upper eyelid separator 6 based on the judgment result that the eyelid separator is extended to the preset eyelid position and the distance between the eyelid slit of each eye and the corresponding eyebrow in the initial eye image.

[0070] In practice, the upward movement distance of the left upper eyelid separator 6 = the distance from the left eyebrow to the left eyelid slit, and the upward movement distance of the right upper eyelid separator 6 = the distance from the right eyebrow to the right eyelid slit.

[0071] Specifically, the intelligent control module determines the downward movement distance of the corresponding lower eyelid separator 7 according to the upward movement distance of the single upper eyelid separator 6 and the distance between the eyelid slit of the corresponding eye and the bottom of the corresponding eye bag in the initial eye image.

[0072] In implementation, the downward movement distance of the left lower eyelid separator 7 = 0.5 times the distance from the bottom of the left eye bag to the left eyelid slit ~ 0.8 times the distance from the bottom of the left eye bag to the left eyelid slit, and at the same time, the downward movement distance of the left lower eyelid separator 7 = 0.5 times the upward movement distance of the left upper eyelid separator 6 ~ 0.7 times the upward movement distance of the left upper eyelid separator 6; based on the above two conditions, a range of downward movement distance is determined, and the middle value of the range is determined as the downward movement distance of the left lower eyelid separator 7.

[0073] It is understandable that the calculation of the downward movement distance of the right lower eyelid separator 7 is the same, so it will not be repeated.

[0074] Understandably, clinical examination of the pupil is given great importance because pupil size and response to light can reflect the patient's state of consciousness, brainstem function, and possible diseases. When evaluating the condition of an unconscious patient, doctors usually closely observe changes in pupil size and response to light to determine the patient's state of consciousness and the progression of the disease.

[0075] Specifically, the intelligent control module determines the initial pupil diameter of the patient based on the standard binocular pupil image, determines the reaction time when the pupil diameter is equal to the preset diameter based on the binocular video of the patient during a single optical test, and determines the patient's single light reflex tendency based on the reaction time, including:

[0076] If the reaction time is less than or equal to the preset reaction time, the patient's single light reflex tendency is determined to be a strong reaction tendency; if the light reflex time is less than or equal to the preset reaction time, it means that when light is irradiated on the pupil of the eye, the pupil can quickly contract or dilate to adjust the amount of light, so it can be determined that the patient's light reflex tendency is strong and the pupil changes quickly;

[0077] If the reaction time is greater than the preset reaction time, the patient's single light reflex tendency is determined to be a weak reaction tendency; the reaction time to light reflex being greater than the preset reaction time means that when light shines on the pupil of the eye, the pupil cannot quickly contract or dilate to adjust the amount of light. Therefore, it can be determined that the patient's light reflex tendency is very weak, the pupil changes very slowly, the patient may be unconscious, and the patient's condition may worsen.

[0078] In implementation, the preset diameter is usually in the range of 0.5 times the initial pupil diameter to 0.9 times the initial pupil diameter, preferably set to 0.9 times the initial pupil diameter; the preset reaction time is in the range of 0.3s to 1s, preferably set to 0.5s.

[0079] It is understandable that when the light becomes brighter, the pupil will quickly contract (shrink) to limit the amount of light entering the eye; conversely, when the environment becomes darker, the pupil will dilate (enlarge) to allow more light to enter the eye to improve visual sensitivity.

[0080] Specifically, the intelligent control module determines the test frequency of the optical testing device according to the determination result of the light reflection tendency, wherein:

[0081] If the single light reflex tendency is a strong reaction tendency, the optical testing device is determined to perform an optical test according to a preset test frequency; when the patient has a strong reaction tendency, the patient is tested according to a conventional test frequency; in implementation, the preset test frequency is once every two minutes to once every minute, preferably once every minute;

[0082] If the single light reflex tendency is a weak reaction tendency, the optical testing device determines the optical test frequency based on the preset test frequency, the corresponding reaction time and the ratio of the preset reaction time; when the patient has a weak reaction tendency, the test frequency needs to be increased to determine whether the patient's weak reaction tendency is true. If it is true, an alarm needs to be issued to remind medical staff; in implementation, the optical test frequency = 2 × reaction time ÷ preset reaction time × preset test frequency, and the optical test frequency is rounded up.

[0083] Specifically, if the single light reflex tendency is a weak reaction tendency, the intelligent control module performs an optical test on the patient for a preset period (generally set to 1 minute to 2 minutes in practice, preferably set to 1 minute to avoid delaying the rescue time of the patient) according to the determined optical test frequency and determines whether to issue an alarm for the light reflex situation based on the test results, including:

[0084] If the test result still shows a weak reaction tendency, the light reflex is determined to be an absent light reflex and an alarm is issued. At this time, it is considered that the patient's weak reaction tendency is true and the condition has changed, and an alarm needs to be issued to medical staff;

[0085] If the test result shows a strong reaction tendency, the light reflex is determined to be a normal light reflex and whether to issue an alarm is determined based on the patient data; if a weak reflex tendency occurs but the test result is a normal light reflex after increasing the test frequency, it may be an instrument failure, or the patient's condition may be worsening but not rapidly. At this time, it is necessary to comprehensively determine the patient's condition based on the monitoring of the supplementary determination module to avoid missing the treatment of the patient.

[0086] The test result is determined according to an average value of the reaction time of the optical test in a preset period.

[0087] In one embodiment, the preset period is one minute, and the optical test frequency is n times per minute. The average of the n reaction times to light reflection is compared with the preset reaction time to determine whether the test result is a strong reaction tendency or a weak reaction tendency.

[0088] Specifically, the intelligent control module determines whether the optical testing device issues an alarm based on the determination result of normal light reflection and the patient data, including:

[0089] If the Doppler blood flow analyzer shows insufficient blood perfusion or the electroencephalogram shows abnormal waves (such as increased slow waves, spike waves, sharp waves, etc.), the optical testing device is judged to issue an alarm.

[0090] If the Doppler blood flow analyzer does not show insufficient blood perfusion and the electroencephalogram does not show abnormal waves (such as increased slow waves, spike waves, sharp waves, etc.), it is determined that the optical testing device does not issue an alarm.

[0091] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

[0092] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An optical testing device based on intelligent pupil monitoring, characterized in that: include: a wearable module comprising a fixing unit for fixing the optical testing device on the patient's head and a connecting unit for supporting the optical testing device; an eyelid guiding module, connected to the wearable module, for holding open the patient's eyelids; a shooting module connected to the eyelid guidance module to obtain the patient's initial eye image, standard images of both pupils, and a video of the patient's eyes during the test; an illumination module connected to the eyelid guiding module, configured to emit a stimulating light source to cause the patient's pupil to react to light reflex; A supplementary determination module is provided to obtain patient data monitored by an external transcranial Doppler blood flow analyzer and electroencephalogram (EEG); an intelligent control module, connected to the wearable module, the eyelid guidance module, the shooting module, the illumination module, and the supplementary determination module, respectively, for controlling the eyelid guidance module to open the patient's eyelids based on the initial eye image, determining the patient's light reflex tendency based on the standard binocular pupil image and a video of the patient's eyes during the optical test, and determining the patient's light reflex condition and whether to issue an alarm based on the determination result of the light reflex tendency combined with the patient data from the supplementary determination module; The intelligent control module determines the initial pupil diameter of the patient based on the standard pupil images of both eyes, determines the reaction time for the pupil diameter to be equal to the preset diameter based on the video of both eyes of the patient during a single optical test to determine the patient's single light reflex tendency, determines the test frequency of the optical test based on the light reflex tendency, and performs a preset period of optical testing on the patient at the corresponding test frequency based on the determination result of the weak reaction tendency, so as to determine the light reflex situation and whether to issue an alarm based on the optical test result, including: The intelligent control module issues an alarm based on the vanishing light reflection; The intelligent control module determines whether the optical testing device issues an alarm based on the determination result of normal light reflection and the patient data; The light reflection tendency includes a strong reaction tendency and a weak reaction tendency.

2. The optical testing device based on intelligent pupil monitoring according to claim 1, characterized in that: The initial eye image includes a closed-eye photo of the patient's eyebrows and eye bags.

3. The optical testing device based on intelligent pupil monitoring according to claim 1, characterized in that: The eyelid guiding module includes two eyelid guiding components with the same structure, and a single eyelid guiding component includes an eyelid separator and a pressure sensor; The eyelid separator includes an upper eyelid separator for supporting the upper eyelid to open the upper eyelid and a lower eyelid separator for supporting the lower eyelid to open the lower eyelid; The pressure sensor includes an upper pressure sensor for determining the pressure value between the upper eyelid separator and the upper eyelid, and a lower pressure sensor for determining the pressure value between the lower eyelid separator and the lower eyelid. The upper pressure sensor is located at one end of the upper eyelid separator close to the eyelid, and the lower eyelid separator is located at one end of the lower eyelid separator close to the eyelid.

4. The optical testing device based on intelligent pupil monitoring according to claim 3, characterized in that: The intelligent control module determines whether the corresponding eyelid separator is extended to the preset position of the eyelid according to the pressure value determined by the pressure sensor, wherein: If the pressure value is greater than or equal to the preset pressure value, it is determined that the eyelid is extended to the preset position; If the pressure value is less than the preset pressure value, it is determined that the eyelid has not been extended to the preset position of the eyelid; The pressure value determined by the pressure sensor should be smaller than a pressure reference value, and the pressure reference value is larger than a preset pressure value.

5. The optical testing device based on intelligent pupil monitoring according to claim 4, characterized in that: The intelligent control module determines the upward movement distance of the corresponding upper eyelid separator based on the judgment result that the eyelid separator is extended to the preset eyelid position and the distance between the eyelid slit of each eye and the corresponding eyebrow in the initial eye image.

6. The optical testing device based on intelligent pupil monitoring according to claim 5, characterized in that: The intelligent control module determines the downward movement distance of the corresponding lower eyelid separator according to the upward movement distance of the single upper eyelid separator and the distance between the eyelid slit of the corresponding eye and the bottom of the corresponding eye bag in the initial eye image.

7. The optical testing device based on intelligent pupil monitoring according to claim 1, characterized in that: The intelligent control module determines the patient's single light reflex tendency, including: If the reaction time is less than or equal to the preset reaction time, the patient's single light reflex tendency is determined to be a strong reaction tendency; If the reaction time is greater than the preset reaction time, it is determined that the patient's single light reflex tendency is a weak reaction tendency.

8. The optical testing device based on intelligent pupil monitoring according to claim 7, characterized in that: The intelligent control module determines the test frequency of the optical testing device according to the determination result of the light reflection tendency, wherein: If the single light reflection tendency is a strong reaction tendency, determining that the optical testing device performs an optical test according to a preset test frequency; If the single light reflection tendency is a weak reaction tendency, the optical testing device determines the optical testing frequency according to the preset test frequency, the corresponding reaction time and the ratio of the preset reaction time.

9. The optical testing device based on intelligent pupil monitoring according to claim 8, characterized in that: If the single light reflex tendency is a weak reaction tendency, the intelligent control module performs a preset period of optical testing on the patient according to the determined optical testing frequency and determines whether to issue an alarm for the light reflex situation according to the test results, including: If the test result still shows a weak reaction tendency, the light reflex is determined to be a vanishing light reflex and an alarm is issued; If the test result shows a strong reaction tendency, the light reflex is determined to be normal and whether to issue an alarm is determined based on the patient data; The test result is determined according to an average value of the reaction time of the optical test in a preset period.

10. The optical testing device based on intelligent pupil monitoring according to claim 9, characterized in that: The intelligent control module determines whether the optical testing device issues an alarm based on the determination result of normal light reflection and the patient data, including: If the Doppler blood flow analyzer shows insufficient blood perfusion or the electroencephalograph shows the presence of abnormal waves, the optical testing device is determined to issue an alarm.

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