KR102193429B1 - Smart penlight and system for analyzing pupil reflex using the same - Google Patents

Abstract

The present invention is a penlight for measuring pupil reflection and a pupil reflection measuring system using the same, wherein the penlight includes a camera having an autofocus function mounted on one side. The pupil size can be measured using the auto focus function. In addition, the pupil response speed can be classified and evaluated as Prompt/Sluggish/Fix (P/S/F) from the time difference used for automatic focus adjustment of the pupil of the camera.

Description

Smart penlight and pupil reflection analysis system using the same {SMART PENLIGHT AND SYSTEM FOR ANALYZING PUPIL REFLEX USING THE SAME}

The present invention is a smart penlight and a pupil reflection analysis system using the same, and more specifically, by measuring the size of the pupil and/or the light reaction speed of the pupil with a penlight with a built-in camera having an auto focus function, objectifying pupil examination And a smart penlight capable of quantifying and increasing accuracy, and a pupil reflection analysis system using the same.

The characteristics of unconditional reflexes of vertebrates include somatic reflexes, in which the somatic nervous system responds to external stimuli and movement, and internal reflexes operated by the autonomic nervous system.

This unconditional reflex is a reflex that responds unconsciously, so it is a useful reaction that can indirectly check the presence or absence of abnormalities in the sympathetic nerve, parasympathetic nerve, brain and brain stem by shining light into the pupil to check the pupil response in an emergency situation. to be.

The size of a typical pupil is about 2mm in light and about 6mm in diameter in a dark place. The shape of the pupil is a garden, and the large light reflection should be reacted immediately. As for abnormal pupil reactions, the pupil does not respond to light and nerve compression while the pupil is diffused, midbrain injury in which the pupil is located in the center and does not respond, and the brain injury in which the pupil is small and equal in size and responds to light There are several symptoms such as. Therefore, it is possible to determine which part of the brain is abnormal by the shape and reaction of the pupil.

In particular, this pupil response is an important clue to evaluate the prognosis of patients in an emergency or intensive care unit, and many attempts have been made to measure pupil changes and reactivity.

Currently, as a general method for measuring the size of a patient's pupils and their response to light, the examinee roughly grasps the degree of pupil response using a light source according to the examiner's criteria.

For example, as shown in FIG. 7, using a generally used penlight, the examinee may determine the size of the patient's pupil and the light of the pupil from the size of the circles having progressively increasing sizes displayed on the outside of the penlight. The reflex response is roughly measured. In the method of using such a conventional penlight, since the examinee subjectively records the pupil size and the pupil light reflection reaction, an error inevitably occurs depending on the examinee, and objectivity and accuracy are poor.

On the other hand, as shown in Figure 8, the device 2000 shown in Patent Document 1, after attaching the macro lens 2001 to the smart phone, photographing the pupil as a video, the pupil before and after the operation of the flash 2002 It extracts the size and change of the pupil, and displays a specific warning when the change in the pupil is less than the standard. However, since the device 2000 shown in Patent Document 1 must be accompanied by a process of additionally attaching the macro lens 2001, it is difficult to immediately measure the change of the pupil at the emergency site. In addition, the evaluation of the rate of pupil reaction is still subjective.

In addition, as shown in Figure 9, the device 3000 shown in Patent Document 2, by installing a light source unit 3001 and a camera 3002 in a long cylindrical case, the size of the pupil by a separate external device It is transmitted and checked from an external device. However, the apparatus 3000 shown in Patent Document 2 also has a lot of difficulty in immediately measuring the size of the pupil or the reaction rate in an emergency site, and still relies on subjective judgment in measuring the reaction rate.

Patent Document 1: Korean Patent Publication No. 10-1701059 Patent Document 2: Korean Patent Publication No. 10-0022577

In order to solve the problems of the prior art described above, the present invention does not attach an additional accessory such as an eyepiece, and by using an autofocus module mounted on the penlight itself, the pupil size (diameter) and/or the light response speed of the pupil We intend to provide a penlight that can be evaluated by objectifying and quantifying with high accuracy.

In particular, the present invention is to provide a penlight capable of quantitatively and automatically outputting a converted value of a medical mark (Prompt, Sluggish, Fix) for pupil light reflection by using an auto focus function.

In addition, an object of the present invention is to provide a penlight in which a measurement result is displayed on a display mounted on a penlight so that an examinee can immediately check a patient's condition at a measurement location (on-site).

In addition, the present invention is to provide a pupil reflex analysis system capable of accumulatively recording the pupil size and pupil reflex measurement result of an individual patient and utilizing the same for evaluating the patient's condition.

In order to achieve the above-described technical problem, in embodiments of the present invention, as a penlight for measuring pupil reflection, the penlight includes a camera unit including a camera mounted on one side of the penlight, and the camera A penlight including an auto focus module that automatically adjusts focus may be provided.

In an exemplary embodiment, the camera may calculate the pupil diameter (b) from the auto-focus distance (a) between the camera and the pupil and the angle of view (θ) of the camera through an equation b=a*tanθ.

In an exemplary embodiment, the auto-focus module may be to acquire an auto-focus reset time for the pupil according to irradiation of penlight light.

In an exemplary embodiment, the autofocus module includes at least one of a pupil size calculation module and an autofocus reset time measurement module, and the pupil size calculation module includes a pupil diameter (b) through the above-described b=a*tanθ equation. ) Is calculated, and the autofocus reset time measurement module may measure a time required to reset autofocus in response to a change in pupil size or no change before and after light irradiation.

In an exemplary embodiment, the camera unit further includes a penlight internal processing unit electrically connected to the autofocus module, wherein the penlight internal processing unit evaluates a degree of change in pupil size before and after light irradiation; Alternatively, the pupil response speed is evaluated separately as Prompt/Sluggish/Fix (P/S/F) based on the time required to reset the autofocus in response to changes in pupil size before and after irradiation of light or no change; Alternatively, the degree of pupil size change before and after light irradiation is evaluated, and the pupil response speed is set to Prompt/Sluggish/Fix (P/ S/F) may be classified and evaluated.

In an exemplary embodiment, when light is irradiated to the pupil at an illuminance of 300 lux to 1400 lux at an infrared level of 850 nm, when the auto focus reset time is 0.9 to 1.6 seconds, it is evaluated as Prompt (P), and is 0.8 seconds or less or 1.7 If it is more than seconds, it can be evaluated as Sluggish (S), and if there is no auto focus reset, it can be evaluated as Fix (F).

In an exemplary embodiment, the auto focus module may be a TTL (Through the Lens) method that does not have parallax.

In an exemplary embodiment, the penlight includes a pillar-shaped body portion; The camera unit mounted on one side of the front end of the body; A display unit electrically connected to the camera unit, and the display unit may display at least one of a pupil size, a pupil size change degree evaluation result, and a pupil reaction rate evaluation result.

In one exemplary embodiment, the display unit may further include an input means for inputting one or more of a patient registration number or a measurement date.

In an exemplary embodiment, the input means may be in the form of a dial.

In an exemplary embodiment, the camera unit may further include a light for performing light irradiation, and may use a flash of the camera as a light.

In addition, in embodiments of the present invention, the above-described penlight; And evaluating a degree of change in pupil size before and after light irradiation by receiving information obtained from the penlight. Alternatively, the pupil response speed is evaluated separately as Prompt/Sluggish/Fix (P/S/F) based on the time required to reset the autofocus in response to changes in pupil size before and after irradiation of light or no change; Alternatively, the degree of pupil size change before and after light irradiation is evaluated, and the pupil response speed is set to Prompt/Sluggish/Fix (P/ It is possible to provide a pupil reflection analysis system including a; penlight external processing unit that is evaluated separately by S/F).

In an exemplary embodiment, the penlight external processing unit displays at least one of a result of evaluating a degree of change in a processed pupil size and a result of a Prompt/Sluggish/Fix (P/S/F) classification evaluation for a pupil reaction rate. And the display unit of the penlight transmits at least one of the result of evaluating the degree of change in pupil size received from the external processing unit of the penlight and the result of Prompt/Sluggish/Fix (P/S/F) classification evaluation for the pupil reaction speed. Can be displayed.

In an exemplary embodiment, the external processing unit may be installed in a portable terminal device such as a smart phone, a tablet PC, a notebook, and a PDA.

In addition, in embodiments of the present invention, a pupil reflection analysis system including; an external device for transmitting and receiving processing data to and from the internal processing unit of the penlight described above is provided.

In an exemplary embodiment, an external device that transmits and receives processing data to and from the internal processing unit may be a portable terminal device such as a smartphone, a tablet PC, a notebook computer, or a PDA.

In addition, in embodiments of the present invention, as a method for providing pupil size change information using the above-described penlight, from the auto focus distance (a) between the camera and the pupil, and the angle of view (θ) of the camera, b=a*tanθ equation Calculating the pupil diameter (b) through; And evaluating a degree of change in pupil size according to light irradiation from the difference in pupil diameter before and after light irradiation. It is possible to provide a method for providing pupil size change information including.

In addition, in embodiments of the present invention, as the method for providing pupil reflection speed information using the above-described penlight, the time required to reset the autofocus in response to a change or no change in pupil size before and after light irradiation of the penlight It is possible to provide a method for providing pupil reflection speed information including a step of evaluating the pupil reaction rate as a Prompt/Sluggish/Fix (P/S/F).

According to the smart penlight of the embodiments of the present invention and the pupil reflection analysis system using the same, it is possible to objectify, standardize, and quantify the evaluation of the pupil size and/or pupil light response rate recorded by the examinee's self-measurement, and improve accuracy. .

In addition, according to the smart penlight of the embodiments of the present invention and the pupil reflex analysis system using the same, the cumulative comparison of data is possible by entering the patient's registration number, and the exact time for providing the pupil response test medical action to the patient can be checked. Therefore, it is possible to estimate the patient's level of change of consciousness and accurately predict the timing of the problem.

In addition, according to the penlight of the embodiments of the present invention and the pupil reflex analysis system using the same, the patient's pupil size and/or pupil light response rate are automatically data, so that the measurement result is shared among the examinees, and the data is statistically It is possible to provide efficient medical services to patients.

1 is a perspective view schematically showing a smart penlight according to an embodiment of the present invention.
FIG. 2 is a schematic diagram schematically showing a method of measuring the size (diameter) of a pupil using an autofocus of a camera according to an embodiment of the present invention.
3 is a schematic diagram schematically showing a medical mark result of a pupil light reflection reaction using an auto focus reset time of a camera according to an embodiment of the present invention.
FIG. 4 is a partial perspective view schematically showing pupil information and patient information displayed on a display unit of a smart penlight, and an input means for inputting patient information to the display unit according to an embodiment of the present invention.
FIG. 5 is a flowchart schematically illustrating a procedure for measuring pupil reflection through a smart penlight and evaluating it according to an embodiment of the present invention.
FIG. 6 is a schematic diagram schematically showing a pupil reflection analysis system capable of processing the size and reaction speed of the pupil in the processor by transmitting a signal between a smart penlight and an external separate processing unit according to an embodiment of the present invention. .
7 shows a picture according to a conventional penlight.
8 schematically shows a conventional apparatus for measuring a pupil size according to Patent Document 1.
9 schematically shows a conventional apparatus for measuring a pupil size according to Patent Document 2.

Hereinafter, a smart penlight according to the present invention will be described through a preferred embodiment of the present invention based on the accompanying drawings.

In various embodiments, components having the same configuration will be representatively described in one embodiment by using the same reference numerals, and only other components will be described in other embodiments.

In the present specification, terms such as “unit”, “module”, “device”, “terminal”, and “system” may refer to a combination of not only hardware but also software driven by the corresponding hardware. In addition, the hardware may include a data processing device including a CPU or other processor in addition to a device having an external shape. In addition, software driven by hardware may refer to an algorithm, a process, an executable file, a program, and the like.

In this specification, the camera (or camera unit) not only acquires an image by photographing an object, as in general definition, but also can be included in the category of a camera (or camera unit) as long as it performs an auto focus function even if there is no shooting or image acquisition. It is defined as being.

1 is a perspective view schematically showing a smart penlight according to an embodiment of the present invention.

As shown in FIG. 1, a smart penlight 1 according to an embodiment of the present invention may include a body 10, a camera 20, and a display 30.

Specifically, the body portion 10 of the penlight 1 has an approximately long pillar shape, and the camera portion 20 is disposed at one end thereof, and the display unit 30 is disposed on the side of the body portion 10. I can. In addition, an input means 40 for inputting a patient registration number or a measurement date may be disposed on the display unit 30 at the other end of the body 10.

In one example, the camera unit 20 may include a camera 21 having an auto focus function for measuring the size of the patient's pupil and/or the speed of size change, and a light 22 as a light source.

In one example, the camera 21 is a miniature camera that can be mounted on one end of the penlight, and includes a lens module including a lens, an auto focus module that is electrically or mechanically connected to the lens module and automatically adjusts focus. I can.

In one example, the lens module may include a photographing module that photographs a pupil and acquires an image.

In one example, the auto focus module may measure a time required for auto focus resetting.

That is, as will be described later, the auto focus module measures the time required to reset the auto focus in response to a change or no change in pupil size when the light is operated while the pupil is automatically focused before the light is applied. do.

In one example, although not shown, the camera 21 of the camera unit 20 is electrically connected to the autofocus module, and the time required to reset the autofocus in response to a change or no change in pupil size upon irradiation with light is determined. It may include a pupil reflection evaluation processing unit inside the penlight that separately evaluates P/S/F on the basis of it. The processing unit may include a processor or an electronic circuit for performing the processing. A method of evaluating P/S/F based on the auto focus adjustment time will be described later.

In one example, the light 22 irradiates light by moving forward in the longitudinal direction of the body 10. As shown, the light 22 may be provided separately from the camera in the camera unit, but the flash of the camera may be used as a light without a separate light.

In one example, although not specifically shown, the micro camera 21 and the light 22 may be driven by using power from a battery built into the body 10.

The camera unit 20 may be operated with a camera operation button 11 and a light operation button 12 disposed on the side of the body 10.

Meanwhile, in an example, the autofocus module may include a pupil size calculation module that calculates a pupil diameter (b) from the autofocus distance (a) between the camera and the pupil and the angle of view (θ) of the camera lens.

2 is a schematic diagram schematically showing a method of measuring the size (diameter) of the pupil 101 of the eye 100 by using the autofocus of the camera unit 20 according to an embodiment of the present invention.

As shown in FIG. 2, in an emergency situation, the examinee places the penlight 1 of the present invention around the patient's eye 100 toward the pupil 101, and the patient's pupil 101 by the camera 21 When photographed, the size (diameter) of the pupil can be measured.

Specifically, the distance (a) between the camera 21 and the pupil 101 uses the auto focus function of the camera in which the focus is automatically adjusted to the subject. The autofocus method performed by the autofocus module of the camera 21 includes a method in which the camera emits ultrasonic waves or infrared rays [active method], or a method using light naturally reflected from an object [passive ) Method], the distance (a) between the camera 21 and the pupil 101 can be obtained through the measurement of reflected ultrasonic waves or infrared rays, and light. This distance (a) can be adjusted via zooming to achieve auto focus.

In addition, for example, since the lens angle of view θ of the camera can be known in advance according to the inherent spherical shape of the lens included in the lens module of the camera 21, from the schematic diagram of the triangle shown on the right side of FIG. 2, the following [Equation 1] can be used to determine the diameter (b) of the pupil 101.

[Equation 1]

b=a*tanθ

Therefore, when using the penlight 1 including a camera having an autofocus function according to an embodiment of the present invention, the size (diameter) of the pupil 101 can be directly adjusted without a macro lens or a space adjusting tube as in the prior art. Can be derived.

In addition, when autofocus is reset according to light irradiation (when there is a change in pupil size), the changed pupil size after autofocus reset is measured through the autofocus function as described above, and accordingly, the degree of change in pupil size before and after light irradiation. Can be evaluated. If autofocus is not reset, there is no change in pupil size.

In an embodiment of the present invention, the auto focus method performed by the auto focus module of the camera is preferably a TTL (Through the Lens) method that does not have parallax. In detail, since the pupil is very close from the penlight when the pupil is photographed by the camera mounted on the penlight, it is impossible to accurately focus when there is a parallax. Therefore, a TTL (Through the Lens) method that does not have a parallax is preferable as an auto focus method of the camera.

Meanwhile, since the active autofocus method using ultrasound or infrared rays is not the TTL method, it is difficult to accurately focus on an object very close to the camera lens. On the other hand, a manual method employing TTL, such as a contrast detection system and a phase detection system, can accurately focus on a pupil that is very close to the penlight.

On the other hand, FIG. 3 is a schematic view of a medical mark result of a reflection reaction of the pupil 101 when light is irradiated using an auto focus adjustment time, that is, an auto focus reset time of the camera unit 20 according to an embodiment of the present invention. It is a schematic diagram shown.

Specifically, the autofocus camera 21 of the camera unit 20 moves to focus depending on which object is targeted, but the autofocus function itself is not affected by light. Therefore, even if light is illuminated while the auto focus is on, the focus does not change unless there is a change in the subject, but if the subject changes, the focus is reset, and such refocusing may take time. Using this point, it is possible to set a three-stage mark by dividing the time at which the autofocus is reset according to the change of the pupil during light irradiation.

That is, when the camera 21 of the penlight 1 camera unit 20 is positioned close to the patient's pupil, the focus is focused by the auto focus function. At this time, when the light 22 is activated, the size of the patient's pupil 101 is changed, and the camera 21 needs to refocus according to the changed size of the pupil 101, and the refocus time is set accordingly. Can be derived. Derivation of the autofocus reset time may be derived, for example, as a time interval between an electrical signal when autofocus is initially set and an electrical signal when autofocus is reset. Meanwhile, at this time, the flash of the camera can be used as a light shining on the patient's pupil 101.

The time required for this autofocus reset can be classified into three categories, and these can be marked to correspond to Prompt (normal category), Sluggish (slow response category), and Fix (no response). At this time, the auto focus reset time division setting according to Prompt (normal category), Sluggish (slow response category), and Fix (no response) is performed in seconds, but can be evaluated in units of, for example, 1/10 seconds.

For example, referring to FIG. 3, in the case of FIG. 3(a), the size of the pupil 101 decreases rapidly within a certain second range when the light 22 is operated, and the camera 21 The auto focus is reset accordingly.

For example, when the light is irradiated with an illuminance of 300 lux to 1400 lux at an infrared level of 850 nm, the average maximum pupil size is 4.1±0.34 mm, and the minimum pupil size is based on the pupil size of a general normal person. Is 2.7±0.21mm, the average contraction rate is 1.48±0.33mm/sec, and the pupil contraction latency is known to be 0.24±0.4sec. Based on this calculation, the average pupil contraction time in a normal person is 0.9 to 1.6 seconds.

Therefore, in the case of the reaction as shown in FIG. 3(a), when light is applied to the pupil 101, the size of the pupil 101 rapidly contracts between 0.9 seconds and 1.6 seconds, and the camera 21 is also between 0.9 seconds and 1.6 seconds. The state in which the auto focus reset is performed in the Prompt state may be examined, and a “P” may be displayed on the display unit 30 to be described later.

On the other hand, there may be an error between the actual pupil contraction time and the time the camera measures the pupil contraction, but this error is very small, so it is regarded as a negligible range.

In addition, in the case of FIG. 3(b) in which light is irradiated with an illuminance of 300 lux to 1400 lux at an infrared level of 850 nm in the same manner as the light irradiation condition of FIG. 3(a), the size of the pupil 101 is In the case of slow contraction during operation, for example, after a time of 1.7 seconds or more, the pupil 101 becomes smaller, and the camera 21 is also automatically refocused after that time. Therefore, in the case of the reaction as shown in FIG. 3(b), the size of the pupil 101 can be evaluated as a sluggish state in which the size of the pupil 101 slowly contracts when light is applied to the pupil 101, and “ It can be marked with S”.

On the other hand, it is common to judge that the pupil is contracted when the contraction of the pupil is reduced at a rate of, for example, 34% of the total area. However, in the case of brain injury patients, the contraction area is small, and the pupil contracts as described in the “P” state. In some cases, the contraction of the pupil stops in the middle without doing so. When the area of contraction is small as described above, the time until the contraction of the pupil stops with a small area size can be checked in a sluggish state. For example, in the case of contraction in a time of 0.8 seconds or less, it does not react quickly, but after contraction to a small area size, it is considered that the pupil contraction has stopped in the middle, and this is determined as a sluggish state.

In addition, in the case of FIG. 3(c), even if the light 22 operates, the size of the pupil 101 does not change, and the camera 21 is not automatically focused. Therefore, in the case of the reaction as shown in FIG. 3(c), the examination can be performed in a Fix state in which the size of the pupil 101 does not change when light is applied to the pupil 101, and “ F” can be displayed.

The above P/S/F is shown in a table as follows.

[Table 1]

In one embodiment, as described above, the camera unit 20 determines whether the auto focus reset is performed within a range of seconds after the light operation (for example, within 0.9 to 1.6 seconds) (P), and the P Is it within a range that is less than the second range (excluding 0 seconds) or a larger range (e.g., less than or equal to 0.8 seconds or more than 1.7 seconds) (S), or whether there is no auto focus reset even when the light is activated (F; since there is no reset, this time The time required for resetting is 0 seconds), and may include a penlight internal processing unit that discriminates and outputs a P/S/F signal as a result value, and output from the processing unit to the display unit 30 as described below. P/S/F can be displayed together.

Meanwhile, FIG. 4 is an input for inputting the pupil 101 and patient information displayed on the display unit 30 of the penlight 1 and patient information to the display unit 30 according to an embodiment of the present invention. It is a partial perspective view schematically showing the means 40.

As shown in FIG. 4, the display unit 30 may be an instrument panel in which digital numbers or characters can be displayed, and the first digit 31 of the instrument panel is a pupil 101 measured by a penlight 1. ) Can represent the size. From the example shown in FIG. 4, it can be seen that the size of the pupil 101 is 4 mm.

In addition, the second digit 32 of the instrument panel may indicate the evaluation of the patient's pupil 101 light reaction state (whether P/S/F) measured by the penlight 1. In the example shown in FIG. 4, it can be seen that the patient's pupil 101 light reaction state is “F” (Fix) state.

In addition, the third digit 32 of the instrument panel may display an examination date or patient information that the examinee can input into the penlight 10. In the example shown in FIG. 4, the size and light response state of the patient's pupil 101 were measured on April 16, 2018.

In addition, as described above, patient information, for example, patient registration number or management number, can be entered into the third digit 33 of the display unit 30, and such input is performed on the body part 10 ) Can be input through the dial-type input means 40 installed at the other end of the). Specifically, the number string 41 composed of a dial may be rotated, and the information may be input through the display input button 34 at the location of the information. Of course, without employing such a manual dial input method, a barcode or QR code reader for inputting a patient's barcode or QR code to the penlight may be mounted. A detailed description of the electromagnetic operation method of the input or the configuration of the circuit will be omitted.

FIG. 5 is a diagram illustrating a reflection of the pupil 101 through a smart penlight 1, evaluating the patient's pupil 101 light response state, and displaying it on the display unit 30 according to an embodiment of the present invention. It is a flow chart schematically showing the procedure to do.

The details shown in FIG. 5 are sequential representations of the methods according to the embodiment of the present invention described above, and detailed descriptions will be omitted since the details are the same as those of the above-described methods.

6 shows the degree of change in the size of the pupil 101 in the penlight external processor 2 by transmitting a signal between the penlight 1 and a separate processing unit 2 outside the penlight according to an embodiment of the present invention. And/or a schematic diagram schematically showing a pupillary reflex analysis system capable of handling reaction rate evaluation.

As shown in FIG. 6, the external processing unit 2 receives information obtained from the camera unit such as the value of the [Equation 1] and the auto focus reset time of the camera unit 20 of the penlight 1 Process. That is, the camera unit 20 transmits the signal to the external processing unit 2 and transmits the corresponding signal to the external processing unit 2 without having to have an internal processing unit that internally processes the pupil size change degree evaluation result or the pupil reflection rate evaluation result. This can be done to reduce the penlight operating load. The external processing unit 2 transmits the result of evaluating the degree of change in size of the processed pupil 101 and/or the evaluation result of classifying the light reaction speed of the pupil 101 back to the penlight 1, and transmits the information to the display unit 30 ) Can be marked.

In one example, the external processing unit 2 may be included as a part of a PACS system, which is an image storage and transmission system. Alternatively, the external processing unit 2 may be included in a portable terminal device such as a smart phone, a tablet PC, a notebook computer, or a PDA as described above. Alternatively, the external processing unit 2 may be included in the PACS system, and the PACS system and the portable terminal device may be interlocked.

Meanwhile, in addition to installing the external processing unit in the portable terminal as described above, in an embodiment of the present invention, the penlight internal processing unit is interlocked to transmit and receive processing data with a portable terminal device such as a smart phone, tablet PC, notebook, PDA, etc. I can. Accordingly, in the portable terminal device, the received data can be accumulated for each patient.

On the other hand, the transmission and reception method between the penlight and the PACS and/or portable terminal device may include various communication methods in which the object and the object can network, and wired communication, wireless communication (including Bluetooth, which is a short-range wireless communication), 3G, It may be 4G, 5G wired Internet or wireless Internet, in addition to this, it may be a core network integrated with a wired public network, a wireless mobile communication network, or a portable Internet, and the TCP/IP protocol and various services existing in the upper layer, that is, HTTP (Hyper Text Transfer Protocol), Telnet, File Transfer Protocol (FTP), Domain Name System (DNS), Simple Mail Transfer Protocol (SMTP), etc. may be an open computer network, but the present invention is not limited thereto.

In this way, the patient's pupil size and pupil reflex velocity evaluation results obtained from the smart penlight 1 can be cumulatively recorded together with other health data such as patient vital data, thereby helping to evaluate the patient's condition. have. In addition, long-term pupil size and pupil reflex velocity evaluation results of a plurality of patients accumulated in a PACS or portable mobile terminal from a plurality of smart penlights may be useful as big data. Such big data is used as data for machine learning, deep learning, and the like, and can be usefully used for diagnosis and treatment of patients.

With reference to the above description, those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof.

Therefore, it should be understood that the above-described embodiments are illustrative in all respects and are not intended to limit the present invention to the embodiments, and the scope of the present invention is based on the claims to be described later rather than the above detailed description. It is shown, and all changes or modified forms derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included in the scope of the present invention.

1 Penlight 10 Body
11 Camera operation button 12 Light operation button
20 Camera section 21 Camera
22 Light 30 Display
40 input means 100 eyes
101 pupil
a Distance between the camera lens and the pupil b The diameter of the pupil
31 Pupil size indicator 32 Pupil light response indicator
33 Patient accuracy indicator 34 Input button
41 dial number string

Claims (17)

As a penlight for measuring pupil reflection,
The penlight includes a camera unit including a camera mounted on one side of the penlight,
The camera includes an auto focus module that automatically adjusts focus with respect to the pupil,
The auto focus module includes at least one of a pupil size calculation module and an auto focus reset time measurement module,
The pupil size calculation module calculates the pupil diameter (b) through Equation 1 below, from the automatic focal length (a) between the camera and the pupil, and the angle of view (θ) of the camera,
[Equation 1]
b=a*tanθ
The auto focus reset time measurement module measures a time required to reset the auto focus in response to a change or no change in pupil size before and after light irradiation.
delete delete delete As a penlight for measuring pupil reflection,
The penlight includes a camera unit including a camera mounted on one side of the penlight,
The camera includes an auto focus module that automatically adjusts focus with respect to the pupil,
The camera unit further includes a penlight internal processing unit electrically connected to the auto focus module,
The penlight internal processing unit evaluates the degree of change in pupil size before and after light irradiation, or
In response to changes in pupil size before and after irradiation or no change in pupil size, the pupil response speed is evaluated separately as Prompt/Sluggish/Fix (P/S/F) based on the time it takes to reset the autofocus, or
Evaluate the degree of change in pupil size before and after light irradiation, and adjust the pupil response speed based on the time it takes for autofocus to reset in response to changes or no change in pupil size before and after light irradiation, Prompt/Sluggish/Fix (P/S/ Penlight, characterized in that the evaluation is divided into F).
The method of claim 5,
When the pupil is irradiated with light at an illuminance of 300 to 1400 lux at an infrared level of 850 nm,
If the time for auto focus reset is 0.9 to 1.6 seconds, evaluate as Prompt (P),
If it is less than 0.8 seconds or more than 1.7 seconds, it is evaluated as Sluggish (S),
A penlight, characterized in that, if there is no auto focus reset, and if it is 0 seconds, it is evaluated separately as Fix (F).
The method of claim 1,
The auto focus function is a penlight, characterized in that the TTL (Through the Lens) method having no parallax.
The method of claim 1,
The camera unit penlight, characterized in that further comprises a light for performing light irradiation.
The method of claim 1,
The penlight has a columnar body portion; The camera unit mounted on one side of the front end of the body; And a display unit electrically connected to the camera unit,
The display unit displays at least one of a pupil size, a result of evaluating a degree of change in pupil size according to light irradiation, and a result of evaluating a pupil reaction rate according to debt irradiation.
The method of claim 9,
An input means for inputting at least one of a patient registration number or a measurement date is further provided on the display unit.
The method of claim 10,
The penlight, characterized in that the input means is in the form of a dial.
Penlight; And
By receiving the information obtained from the penlight,
Evaluate the degree of change in pupil size before and after light irradiation, or
In response to changes in pupil size before and after irradiation or no change in pupil size, the pupil response speed is evaluated separately as Prompt/Sluggish/Fix (P/S/F) based on the time it takes to reset the autofocus,
Evaluate the degree of change in pupil size before and after light irradiation, and adjust the pupil response speed based on the time it takes for autofocus to reset in response to changes or no change in pupil size before and after light irradiation, Prompt/Sluggish/Fix (P/S/ It includes a penlight external processing unit that is classified and evaluated as F),
The penlight is a penlight for measuring pupil reflection, and includes a camera unit including a camera mounted on one side of the penlight,
The camera is a pupil reflection analysis system, characterized in that it comprises an auto-focus module for automatically adjusting the focus on the pupil.
The method of claim 12,
The penlight external processing unit transmits at least one of the processed pupil size change evaluation result and the Prompt/Sluggish/Fix (P/S/F) classification evaluation result for the pupil reaction rate to the display unit of the penlight,
The display unit of the penlight displays at least one of a result of evaluating a degree of change in pupil size received from an external processing unit of the penlight and a result of a classification evaluation result of Prompt/Sluggish/Fix (P/S/F) for a pupil reaction rate. Pupil reflex analysis system.
The method of claim 12,
When the pupil is irradiated with light at an illuminance of 300 lux to 1400 lux at an infrared level of 850 nm, it is evaluated as Prompt (P) if the auto focus reset time is 0.9 to 1.6 seconds, and Sluggish (S) if it is less than 0.8 seconds or more than 1.7 seconds The pupil reflex analysis system, characterized in that the evaluation is evaluated as, and if there is no auto focus reset, in the case of 0 seconds, it is evaluated separately as Fix (F).
The method of claim 12,
The pupil reflection analysis system, characterized in that the external processing unit is installed in a portable terminal.
The penlight of claim 5 or 6; And
And an external device that transmits and receives processing data to and from the internal processing unit of the penlight.
The method of claim 16,
The pupil reflection analysis system, characterized in that the external device is a portable terminal device.

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