Eyeshade capable of monitoring eye condition of patient and monitoring method

Abstract

The invention relates to an eyeshade capable of monitoring eye conditions of a patient. The eyeshade comprises an eyeshade body, a camera, a Bluetooth module and a processor, the eyeshade body is worn on the eyes of a patient and completely covers the eyes of the patient, the side, close to the eyes of the patient, of the eyeshade body is the inner side, the two cameras are installed at the positions of the two eyes of the patient respectively, and the Bluetooth module is installed on the inner side of the eyeshade and connected with the cameras and the processor; the camera shoots pictures of the eyes of the patient and transmits the pictures to the processor, and the processor judges the eye bulbar conjunctiva edema degree of the patient and records the instant eye times and the pupil size. Compared with the prior art, the eye condition of the patient is shot through the camera, whether the bulbar conjunctiva edema occurs or not and the edema degree are judged by restoring the distance between the bulbar conjunctiva of the eye of the patient and the camera, the instant eye times of the patient are monitored through motion capture, and the pupil size is obtained through the eye image of the patient; the eye condition of the patient can be monitored in real time, and medical staff can treat the patient in time conveniently.

Description

Technical Field

[0001] The invention relates to nursing medical equipment, in particular to an eye mask capable of monitoring the eye condition of a patient and a monitoring method. Background Art

[0002] Intensive care units generally treat patients who are in critical condition or on the verge of death. Medical staff pay more attention to saving patients' lives and protecting their vital organs. They often ignore the concern for patients' eye problems. Sedation, coma or mechanical ventilation hinder effective communication between patients and medical staff. Eye diseases are "silent" diseases in the ICU. Early identification, prevention and management of eye diseases by medical staff are particularly important for the prevention of eye diseases.

[0003] Corneal disease is one of the diseases that cause blindness. Exposure keratitis (EK) is the most common cause of corneal disease in ICU patients. In healthy people, tears are a mechanical lubricant that keeps the surface of the eye moist and destroys microorganisms with antibacterial properties. In addition, the eyelids can act as a physical barrier to prevent dry eyes. However, when patients enter the ICU, they cannot completely close their eyes due to mechanical ventilation, sedation and the use of nerve blockers, invasive procedures (such as suction care), drugs (such as atropine, antihistamines, phenothiazines, disopyramide, tricyclic antidepressants, etc.), changes in vascular permeability, air conditioning and low-humidity air, light stimulation, prone position and other operations, thus inducing a series of eye diseases. The incidence of eye complications in patients entering the ICU is 37.5% to 70%, usually occurring on the 2nd to 7th day of ICU hospitalization. If ignored, it can lead to permanent damage such as corneal injury, corneal ulcer, perforation, and even blindness.

[0004] Existing eye masks can generally only provide steam to hydrate and sterilize the eyes, but cannot monitor the condition of the patient's eyes. Therefore, how to design a device that can monitor the patient's eye condition is a technical problem that needs to be solved. Summary of the invention

[0005] The purpose of the present invention is to overcome the defect of the prior art that the patient's eye condition cannot be monitored and to provide an eye mask and a monitoring method that can monitor the patient's eye condition.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] According to one aspect of the present invention, there is provided an eye mask capable of monitoring the eye condition of a patient, comprising an eye mask body, a camera, a Bluetooth module and a processor; the eye mask body is worn on the patient's eyes to completely cover the patient's eyes, the side of the eye mask body close to the patient's eyes is the inner side, there are two cameras, which are respectively installed at the positions where the two eyes of the patient are projected on the eye mask body, the Bluetooth module is installed on the inner side of the eye mask, and is connected to the camera and the processor; the camera takes a picture of the patient's eyes and transmits it to the processor, and the processor determines the degree of conjunctival edema of the patient's eyes and records the number of blinks and the pupil size.

[0008] As a preferred technical solution, the eye mask also includes a water cavity, a steam generator, a temperature sensor and a humidity sensor. The water cavity stores sterilized water and is connected to the steam generator through a water pipe. The eye mask body is fixed to the patient's eyes through a strap, the water cavity is installed on the strap, and the steam generator, temperature sensor and humidity sensor are installed on the inside of the eye mask and connected to the Bluetooth module.

[0009] As a preferred technical solution, the steam generator is provided with a steam ejection hole, and the steam ejection hole is located in the middle of the eye mask body; a heater is provided in the water cavity; and Velcro is provided on the strap.

[0010] As a preferred technical solution, the lens installed on the camera is a visible lens.

[0011] According to another aspect of the present invention, there is provided a monitoring method using an eye mask capable of monitoring the eye condition of a patient according to any one of claims 1 to 4, which specifically comprises the following steps:

[0012] Step S1, the camera takes a picture of the patient's eyes and transmits it to the processor;

[0013] Step S2, the processor restores the distance between the patient's conjunctiva and the camera to determine whether the conjunctiva is edematous; and records the number of blinks of the patient within a set time and the size of the patient's pupil;

[0014] Step S3, transmitting the degree of conjunctival edema, the number of blinks and the pupil size to the hospital system.

[0015] As a preferred technical solution, in step S2, the processor determines whether the bulbar conjunctiva is edematous by:

[0016] Step S2011, the camera takes a picture of the initial bulbar conjunctiva of the patient's eye without bulbar conjunctival edema, and records the initial height of the bulbar conjunctiva according to the distance from the bulbar conjunctiva to the camera;

[0017] Step S2012, the camera takes a picture of the patient's current bulbar conjunctiva, and records the real-time height of the bulbar conjunctiva according to the distance from the current bulbar conjunctiva to the camera;

[0018] Step S2013, comparing the initial height of the bulbar conjunctiva with the real-time height of the bulbar conjunctiva, and recording the position where the current bulbar conjunctiva height is higher than the bulbar conjunctiva height without edema, that is, the position where edema occurs;

[0019] Step S2014, calculate the area of ​​all edema occurrence locations and the ratio of the area of ​​the bulbar conjunctiva to determine the degree of the patient's bulbar conjunctival edema.

[0020] As a preferred technical solution, the method for obtaining the initial height of the bulbar conjunctiva in step S2011 and the real-time height of the bulbar conjunctiva in step S2012 is: gridding the initial bulbar conjunctiva photo and the current bulbar conjunctiva photo, calculating the height of each grid respectively, and obtaining the initial height model of the bulbar conjunctiva and the real-time height model of the bulbar conjunctiva.

[0021] As a preferred technical solution, the method for judging the degree of conjunctival edema of the patient in step S2014 is: if the area of ​​all edema locations accounts for less than 10% of the conjunctival area, it is mild edema; if the area of ​​all edema locations accounts for 10% to 70% of the conjunctival area, it is moderate edema; if the area of ​​all edema locations accounts for more than 70% of the conjunctival area, it is severe edema.

[0022] As a preferred technical solution, in step S2, the step of recording the number of blinks of the patient within a set time is:

[0023] Step S2021, installing a marking point on the patient's eyelid, and the light board of the camera emits light of a specific wavelength;

[0024] Step S2022, the marking point reflects the light emitted by the camera, and the camera captures the movement trajectory of the marking point;

[0025] Step S2023, processing the motion trajectory to extract the blink action;

[0026] Step S2024, calculating the number of times the blink action occurs within a set time.

[0027] As a preferred technical solution, in step S2, the step of recording the patient's pupil size is:

[0028] Step S2031, the camera takes a picture of the patient's eyes;

[0029] Step S2032, detecting the edge of the pupil in the photo by using an image processing algorithm;

[0030] Step S2033, calculating the pupil diameter by an ellipse fitting algorithm;

[0031] Step S2034, determine the pupil state and transmit it together with the pupil size to the hospital system; when the pupil diameter is 2-5 mm, it is a normal state; when the pupil diameter is less than 2 mm, it is a pupil contraction state; when the pupil diameter is greater than 5 mm, it is a pupil dilation state.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1) The present invention uses a camera to photograph the patient's eye condition, determines whether conjunctival edema occurs and the degree of edema by restoring the distance between the patient's conjunctiva and the camera, monitors the patient's blink times in real time through motion capture, and obtains the pupil size through the patient's eye image; thus, the present invention realizes real-time monitoring of the patient's eye condition, facilitates timely treatment by medical staff, reduces the patient's pain, and prevents serious consequences caused by untimely treatment;

[0034] 2) The present invention sprays sterilized water to the patient's eyes through a steam generator, which plays a role in moistening the patient's eyeballs; the steam spray hole is located in the middle of the eye mask body, which can prevent the steam from being directly sprayed to the eyeballs and causing impact; the temperature and humidity in the eye mask body are monitored by a temperature sensor and a humidity sensor, and the temperature and duration of the steam sprayed by the steam generator can be controlled; the eye mask body is fixed to the head by a lace, and Velcro is provided on the lace for easy adjustment and fixation; a visual lens is installed on the camera to remotely observe and record the patient's eye condition in real time according to needs;

[0035] 3) The present invention takes a picture of the patient's eyes, records the height of the conjunctiva of the patient when no conjunctival edema occurs, compares the subsequent conjunctival height with the initial state, and obtains the area of ​​conjunctival edema, which can conveniently judge the condition of the patient's conjunctival edema; multiple eye conditions of the patient can be monitored only by a camera, the device is simple, and the functions meet actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the structure of one side of an eye mask capable of monitoring the eye condition of a patient according to the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of an eye mask capable of monitoring the eye condition of a patient without a baffle installed on the other side of the eye mask of the present invention;

[0038] Figure 3 This is a schematic diagram of the structure of an eye mask capable of monitoring the eye condition of a patient after a baffle is installed on the other side of the eye mask of the present invention;

[0039] Figure 4 It is a flow chart of the monitoring method of the present invention;

[0040] Figure 5 This is a flow chart of the method for monitoring the degree of bulbar conjunctival edema of the present invention;

[0041] The numbers in the figure show:

[0042] 1. Eye mask body, 11. Strap, 12. Velcro, 13. Baffle, 14. Detection hole, 2. Camera, 3. Bluetooth module, 4. Water cavity, 41. Heating tube, 5. Steam generator, 51. Steam outlet hole, 6. Temperature sensor, 7. Humidity sensor. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0044] Example 1

[0045] like Figure 1 and Figure 2 As shown, the present invention provides an eye mask capable of monitoring the eye condition of a patient, comprising an eye mask body 1, a camera 2, a Bluetooth module 3, a water cavity 4, a steam generator 5, a temperature sensor 6, a humidity sensor 7 and a processor.

[0046] The eye mask body 1 is a cavity structure with one side open, and the open side is set on the patient's eyes. The eye mask is provided with laces 11 on both sides, and Velcro 12 is provided at the end of the laces 11. The eye mask body 1 is fixed on the patient's head through the laces 11 and Velcro 12. A baffle 13 is provided on the inner side of the eye mask body 1, and the Bluetooth module 3, camera 2, steam generator 5, temperature sensor 6 and humidity sensor 7 are installed between the baffle 13 and the inner side of the eye mask, and a plurality of detection holes 14 are provided on the baffle 13.

[0047] The camera 2 is two cameras installed inside the eye mask body 1, and the lens of the camera 2 is exposed from the detection hole 14 of the baffle 13, facing the two eyes of the patient, and taking pictures of the patient's eyes. The lens of the camera 2 can be a visual lens, which is convenient for real-time observation and recording of the patient's eye conditions.

[0048] The water chamber 4 is mounted on the lace 11, and stores sterilized water therein, and is connected to the steam generator 5 through a water pipe. A heating pipe 41 is provided in the water chamber 4, and the sterilized water can be heated.

[0049] The steam generator 5 is installed behind the inner baffle 13 of the eye mask, and is provided with a steam ejection hole 51. The steam ejection hole 51 is located in the middle of the eye mask body 1 and is exposed from the detection hole 14 of the baffle 13. The steam is not ejected directly toward the eyes to avoid impact on the eyes.

[0050] The test ends of the temperature sensor 6 and the humidity sensor 7 are exposed from the detection hole 14. The signal line is arranged behind the inner baffle 13 of the eye mask to detect the temperature and humidity inside the eye mask body 1 and feed back to the processor. The processor can adjust the steam generator 5 to make the eye mask body 1 reach the set temperature and humidity, thereby providing a more comfortable eye environment for the patient.

[0051] The Bluetooth module 3 is installed behind the inner baffle 13 of the eye mask, connected to the camera 2, the steam generator 5, the temperature sensor 6 and the humidity sensor 7, and communicates with the processor to transmit information.

[0052] The camera 2 takes pictures of the patient's eyes and transmits them to the processor, which determines the degree of conjunctival edema of the patient's eyes and records the number of blinks and pupil size.

[0053] Example 2

[0054] like Figure 3 As shown, the present invention provides a monitoring method, using the eye mask capable of monitoring the eye condition of a patient in Example 1, as follows:

[0055] Marking points are installed on the patient's eyelids, and camera 2 takes pictures of the patient's eyes and transmits them to the processor.

[0056] The processor determines whether the bulbar conjunctiva is edematous, specifically as follows: camera 2 takes a photo of the initial bulbar conjunctiva of the patient's eye without bulbar conjunctival edema, divides the initial bulbar conjunctiva photo into grids, records the initial height of each bulbar conjunctiva grid according to the distance from the bulbar conjunctiva to camera 2, and obtains the bulbar conjunctiva initial height model; camera 2 takes a photo of the patient's current bulbar conjunctiva, divides the current bulbar conjunctiva photo into grids, records the real-time height of each bulbar conjunctiva grid according to the distance from the current bulbar conjunctiva to camera 2, and obtains the bulbar conjunctiva real-time height model; compares the height of each grid on the bulbar conjunctiva initial height model with the height of each grid on the bulbar conjunctiva real-time height model, and records the grid whose current bulbar conjunctiva height is higher than the bulbar conjunctiva height without edema, that is, the location where edema occurs; calculates the area of ​​all edema locations and the proportion of the bulbar conjunctiva area to determine the degree of bulbar conjunctival edema of the patient. If the area of ​​all edema sites accounts for less than 10% of the area of ​​the bulbar conjunctiva, it is mild edema; if the area of ​​all edema sites accounts for 10% to 70% of the area of ​​the bulbar conjunctiva, it is moderate edema; if the area of ​​all edema sites accounts for more than 70% of the area of ​​the bulbar conjunctiva, it is severe edema. Patients with severe edema cannot close their eyelids normally on their own, and cannot close them even with artificial assistance.

[0057] The processor records the number of times the patient blinks within a set time, specifically: the light board of camera 2 emits light of a specific wavelength, the marking point on the patient's eyelid reflects the light emitted by camera 2, and camera 2 captures the movement trajectory of the marking point; the processor processes the movement trajectory, extracts the blinking action, and records each blink action that occurs within each set time period to obtain the number of blinks of the patient within the set time.

[0058] The processor monitors the pupil size of the patient, specifically: the processor pre-processes the image of the eye pupil taken by camera 2 through an image processing algorithm and extracts the edge of the pupil, fits the pupil edge into a circle through an ellipse fitting algorithm, and measures the diameter of the circle, which is the diameter of the pupil. When the pupil diameter is 2 to 5 mm, it is in a normal state; when the pupil diameter is less than 2 mm, it is in a pupil contraction state, and when it is less than 1 mm, it is a pinpoint pupil; when the pupil diameter is greater than 5 mm, it is in a pupil dilation state.

[0059] The patient's conjunctival edema degree, blink frequency, and pupil size and status are transmitted to the hospital system.

[0060] The processor can set the temperature and humidity, and control the heater to heat the sterilized water in the water chamber 4. If the temperature inside the eye mask reaches the set temperature, the heating function is automatically turned off. If the humidity inside the eye mask reaches the set humidity, the steam spraying is stopped, so that the temperature and humidity inside the eye mask are constant.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An eye mask capable of monitoring the eye condition of a patient, characterized in that: The invention comprises an eye mask body (1), a camera (2), a Bluetooth module (3) and a processor; the eye mask body (1) is worn on the patient's eyes to completely cover the patient's eyes; the side of the eye mask body (1) close to the patient's eyes is the inner side; there are two cameras (2), which are respectively installed at the positions where the patient's two eyes are projected on the eye mask body (1); the Bluetooth module (3) is installed on the inner side of the eye mask and is connected to the camera (2) and the processor; the camera (2) takes a picture of the patient's eyes and transmits it to the processor; the processor determines the degree of conjunctival edema of the patient's eyes and records the number of blinks and the size of the pupil.

2. An eye mask capable of monitoring the eye condition of a patient according to claim 1, characterized in that: The eye mask further comprises a water cavity (4), a steam generator (5), a temperature sensor (6) and a humidity sensor (7); the water cavity (4) stores sterilized water and is connected to the steam generator (5) via a water pipe; the eye mask body (1) is fixed to the patient's eyes via a lace (11); the water cavity (4) is mounted on the lace (11); the steam generator (5), the temperature sensor (6) and the humidity sensor (7) are mounted on the inner side of the eye mask and are connected to the Bluetooth module (3).

3. An eye mask capable of monitoring the eye condition of a patient according to claim 2, characterized in that: The steam generator (5) is provided with a steam ejection hole (51), and the steam ejection hole (51) is located in the middle of the eye mask body (1); a heating tube (41) is provided in the water cavity (4); and a Velcro (12) is provided on the strap (11).

4. An eye mask capable of monitoring the eye condition of a patient according to claim 1, characterized in that: The lens installed on the camera (2) is a visual lens.

5. A monitoring method using the eye mask capable of monitoring the eye condition of a patient according to any one of claims 1 to 4, characterized in that: The specific steps include: Step S1, the camera (2) takes a picture of the patient's eyes and transmits it to the processor; Step S2, the processor restores the distance between the patient's conjunctiva and the camera (2) to determine whether the conjunctiva is edematous; and records the number of blinks of the patient within a set time and the size of the patient's pupil; Step S3, transmitting the degree of conjunctival edema, the number of blinks and the pupil size to the hospital system.

6. The monitoring method according to claim 5, characterized in that: In step S2, the processor determines whether the bulbar conjunctiva is edematous by: Step S2011, the camera (2) takes a photo of the initial bulbar conjunctiva of the patient's eye without bulbar conjunctival edema, and records the initial height of the bulbar conjunctiva according to the distance from the bulbar conjunctiva to the camera (2); Step S2012, the camera (2) takes a photo of the patient's current bulbar conjunctiva, and records the real-time height of the bulbar conjunctiva according to the distance from the current bulbar conjunctiva to the camera (2); Step S2013, comparing the initial height of the bulbar conjunctiva with the real-time height of the bulbar conjunctiva, and recording the position where the current bulbar conjunctiva height is higher than the bulbar conjunctiva height without edema, that is, the position where edema occurs; Step S2014, calculate the area of ​​all edema occurrence locations and the ratio of the area of ​​the bulbar conjunctiva to determine the degree of the patient's bulbar conjunctival edema.

7. The monitoring method according to claim 6, characterized in that: The method for obtaining the initial height of the bulbar conjunctiva in step S2011 and the real-time height of the bulbar conjunctiva in step S2012 is: gridding the initial bulbar conjunctiva photo and the current bulbar conjunctiva photo, calculating the height of each grid respectively, and obtaining the initial height model of the bulbar conjunctiva and the real-time height model of the bulbar conjunctiva.

8. The monitoring method according to claim 6, characterized in that: The method for judging the degree of the patient's conjunctival edema in step S2014 is as follows: if the area of ​​all edema locations accounts for less than 10% of the conjunctival area, it is mild edema; if the area of ​​all edema locations accounts for 10% to 70% of the conjunctival area, it is moderate edema; if the area of ​​all edema locations accounts for more than 70% of the conjunctival area, it is severe edema.

9. The monitoring method according to claim 5, characterized in that: In step S2, the step of recording the number of blinks of the patient within a set time is as follows: Step S2021, a marking point is installed on the patient's eyelid, and the light board of the camera (2) emits light of a specific wavelength; Step S2022, the marking point reflects the light emitted by the camera (2), and the camera (2) captures the movement trajectory of the marking point; Step S2023, processing the motion trajectory to extract the blink action; Step S2024, calculating the number of times the blink action occurs within a set time.

10. The monitoring method according to claim 5, characterized in that: In step S2, the step of recording the pupil size of the patient is: Step S2031, camera (2) takes a photo of the patient's eyes; Step S2032, detecting the edge of the pupil in the photo by using an image processing algorithm; Step S2033, calculating the pupil diameter by an ellipse fitting algorithm; Step S2034, determine the pupil state and transmit it together with the pupil size to the hospital system; when the pupil diameter is 2-5 mm, it is a normal state; when the pupil diameter is less than 2 mm, it is a pupil contraction state; when the pupil diameter is greater than 5 mm, it is a pupil dilation state.

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