Dry eye comprehensive regulation and control device

Abstract

The invention relates to the technical field of medical apparatus and instruments, in particular to a dry eye comprehensive regulation and control device, which comprises a terminal used for generating a regulation and control instruction according to received first user input information; the main control assembly is used for sending a monitoring instruction to the execution assembly when receiving the regulation and control instruction, and judging whether a response signal is received within a first preset time; when a response signal is received, whether the execution assembly is used for the first time or not is judged according to the response signal, and if the execution assembly is used for the first time, a control instruction is generated according to the regulation instruction; the execution assembly is used for sending a response signal to the main control assembly according to the configuration parameters when receiving the monitoring instruction; and when the control instruction is received, executing a corresponding operation according to the control instruction. The dry eye comprehensive regulation and control device has the advantages that the patient suffering from the dry eye can be treated by acquiring the instruction sent by the user, the operation difficulty of the dry eye comprehensive regulation and control device is effectively reduced, and meanwhile the health problem caused by repeated use of the execution assembly is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a comprehensive dry eye control device. Background Art

[0002] Meibomian gland dysfunction (MGD), as a symptom of dry eyes, is usually caused by the blockage of the meibomian gland's excretion channel by substances such as oil secreted by the gland itself. This blockage interferes with the smooth secretion of the meibomian gland and leads to insufficient lubrication of the eye. The current MGD treatment generally uses local heat therapy to melt the meibomian gland secretions by heating the eyelid area for easy removal. After heat therapy, the removal effect of secretions is enhanced by massaging and vibrating the outside of the eyelid.

[0003] Since MGD is a chronic eye disease with a long course and easy recurrence, it requires long-term treatment to effectively relieve the patient's discomfort. Among them, hot compress and meibomian gland massage require patients to insist on doing it at home every day. At present, hot compress is mostly done by heating towels or steam eye masks, and massage is mostly manual massage.

[0004] As people's pace of life accelerates, the whole process of hot compress and meibomian gland massage is time-consuming and labor-intensive, and patients often cannot persist in the operation, and the doctor's compliance is poor, resulting in poor treatment effects for patients. If the massage method and position are incorrect, it will greatly affect the treatment effect. The emergence of comprehensive dry eye control devices can effectively alleviate these problems, but the existing devices are usually complex in structure, inconvenient to operate during user use, and because users often forget to replace the execution head, the execution head is repeatedly used, which in turn creates the risk of cross-infection or disease transmission.

[0005] Therefore, based on the above technical problems, there is an urgent need for a comprehensive dry eye control device that has a simple structure and can detect whether the execution head is reused. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a comprehensive dry eye control device, which solves the technical problem that the existing device has a complex structure and cannot detect whether the execution component is reused.

[0008] (II) Technical solution

[0009] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0010] In a first aspect, an embodiment of the present invention provides a comprehensive dry eye control device, comprising: a terminal, a main control component and an execution component connected in sequence;

[0011] The terminal is used to, when receiving the first user input information, generate a control instruction according to the first user input information and send it to the main control component;

[0012] The main control component is used to, when receiving the control instruction sent by the terminal, send a monitoring instruction to the execution component, and determine whether a response signal sent by the execution component is received within a first preset time; when receiving the response signal, determine whether the execution component is used for the first time according to the received response signal, and if it is used for the first time, generate a control instruction according to the control instruction and send it to the execution component;

[0013] The execution component is used to send a response signal to the main control component according to the preset configuration parameters when receiving the monitoring instruction sent by the main control component;

[0014] When receiving a control instruction sent by the main control component, the corresponding operation is performed according to the control instruction;

[0015] The configuration parameter includes a first parameter or a second parameter, and when the execution component is used, the preset first parameter will be changed to the second parameter;

[0016] The first user input information includes a target pressure and / or a target temperature generated by the actuator;

[0017] The control instruction is an instruction for controlling the target pressure and / or target temperature generated by the actuator.

[0018] Optionally, the main control component includes a control port arranged on the main control component, and the main control component is connected to the execution component via the control port;

[0019] The main control component is also used to detect in real time whether the control port is connected to the execution component. When it is detected that the control port is connected to the execution component, it is determined whether a connection signal sent by the execution component is received within a second preset time; if received, a signal prompting that the execution component is connected normally is sent and fed back to the terminal;

[0020] If not received, a signal indicating abnormal connection of the execution component is sent and fed back to the terminal;

[0021] The connection signal is a signal sent by the execution component to the main control board when the execution component is connected to the main control board through the control port.

[0022] Optionally, the execution component is also used to determine whether the monitoring instruction is correct according to a preset instruction library when receiving the monitoring instruction sent by the main control component. If correct, send a response signal to the main control component according to preset configuration parameters.

[0023] Optionally, the execution assembly includes: an execution head, an air pressure sensor, a solenoid valve, a speed regulating air pump and a negative temperature coefficient thermistor; the execution head includes an air bag and a heating circuit board; the main control assembly includes: a main control board and a positive temperature coefficient thermistor arranged on the main control board;

[0024] Among them, the air pressure sensor, the solenoid valve and the speed regulating air pump are respectively connected to the airbag, and the air pressure sensor is used to obtain the current pressure value of the airbag in real time and send the current pressure value to the main control board;

[0025] The negative temperature coefficient thermistor is connected to the heating circuit board and the positive temperature coefficient thermistor respectively. The negative temperature coefficient thermistor is used to obtain the current temperature of the heating circuit board in real time and send the current temperature to the main control board;

[0026] The main control component generates control instructions based on the control instructions and sends them to the execution component, including:

[0027] The main control board generates a speed command and an opening and closing command according to the control command sent by the terminal and the current pressure value sent by the pressure sensor, and sends the speed command to the speed regulating air pump to control the speed of the speed regulating air pump, and sends the opening and closing command to the solenoid valve to control the opening and closing state of the solenoid valve;

[0028] The positive temperature coefficient thermistor generates a temperature adjustment instruction according to the received control instruction and the current temperature value, and sends it to the negative temperature coefficient thermistor to control the temperature of the heating circuit board; the control instruction includes a temperature adjustment instruction, a speed instruction and an opening and closing instruction.

[0029] Optionally, the main control board generates a speed instruction and an opening and closing instruction according to the control instruction sent by the terminal and the current pressure value sent by the pressure sensor, including:

[0030] The main control board generates a speed command and an opening and closing command according to the target pressure value and the current pressure value in the received control command;

[0031] The positive temperature coefficient thermistor generates a temperature adjustment instruction according to the received control instruction and the current temperature value, including:

[0032] Generate a temperature adjustment instruction according to the target temperature value and the current temperature value in the received control instruction;

[0033] The control instruction includes a target pressure value and a target temperature value; the temperature adjustment instruction includes a temperature increase instruction and an overheat protection instruction.

[0034] Optionally, the execution assembly includes a first execution head and a second execution head;

[0035] Then, when the terminal receives the first user input information input by the user, it generates a control instruction according to the first user input information and sends it to the main control component, including:

[0036] When the treatment terminal receives first user input information input by the user, it generates a first control instruction and / or a second control instruction according to the first user input information and sends it to the main control component;

[0037] The main control component generates a control instruction according to the control instruction and sends it to the execution component, including:

[0038] The main control component generates a first control instruction and / or a second control instruction corresponding to the first control instruction and / or the second control instruction according to the received first control instruction and / or the second control instruction, and sends the first control instruction and / or the second control instruction to the corresponding execution head;

[0039] The first execution head is used to execute an operation corresponding to the first control signal when the first execution head receives the first control instruction;

[0040] The second execution head is used to execute the operation corresponding to the second control signal when the second execution head receives the second control instruction;

[0041] The regulating instruction includes: a first regulating instruction and / or a second regulating instruction, and the control instruction includes a first control instruction and / or a second control instruction.

[0042] Optionally, the execution component is further used to detect the current temperature value and pressure value in real time, and determine in real time whether the current temperature value and pressure value are greater than a preset temperature threshold and pressure threshold;

[0043] When the current temperature value is greater than the first temperature threshold and less than the second temperature threshold, or the current pressure value is greater than the first pressure threshold, the execution component stops immediately;

[0044] When the current temperature value is greater than the second temperature threshold, or the current pressure value is greater than the second pressure threshold, the execution component self-destructs according to a preset self-destruction program.

[0045] Optionally, the device further comprises: an image collector;

[0046] The terminal is further configured to, when receiving second user input information input by a user, obtain the tear film breakup time according to the eye image acquired in real time by the image acquirer within a preset time;

[0047] and generating first user information according to the tear film breakup time and a preset mapping table;

[0048] The mapping table includes when the tear film breakup time is ≤ 5 seconds, the target temperature is a first temperature, and the target pressure is a first pressure;

[0049] When the tear film breakup time is 5 seconds < ≤ 10 seconds, the target temperature is the second temperature, and the target pressure is the second pressure;

[0050] When the tear film breakup time is ≥10 seconds, the target temperature is the third temperature and the target pressure is the third pressure;

[0051] 24Kpa≤third pressure<second pressure<first pressure≤29Kpa; 38℃≤third temperature<second temperature<first temperature≤43℃.

[0052] Optionally, the terminal obtains the tear film breakup time according to the eye image acquired in real time by the image collector within a preset time, including:

[0053] Arrange all eye images received within a preset time in a receiving order;

[0054] Input all eye images into a pre-set feature point positioning model to obtain a feature point image corresponding to each eye image and pixel coordinates of four key points in the feature point image; the feature point image includes an image marking the four key points of the eye;

[0055] According to the pixel coordinates of the four key points of each feature point image, and the preset formula 1, the aspect ratio corresponding to each eye image is obtained; the formula 1 is:

[0056]

[0057] Where P is the aspect ratio of the eye image, X2 and X4 are the horizontal coordinates of the left and right key points, Y1 and Y3 are the vertical coordinates of the upper and lower key points, and w is the preset rotation parameter;

[0058] According to a preset aspect ratio threshold and the aspect ratio corresponding to any eye image, determining whether the eye image is closed or open;

[0059] After all the eye images are judged, the tear film breakup time is obtained based on all the eye images.

[0060] Optionally, after all the eye images are judged, the terminal obtains the tear film breakup time according to all the eye images, including:

[0061] Input all the eye images of open eyes into the pre-set tear film breakup detection model to detect whether the tear film in each eye image is broken;

[0062] When the tear film breaks in any eye image of an open eye, the eye image is marked;

[0063] The tear film breakup time is obtained according to the number of interval images between the image of the eye that is closest to the closed eye before the marked eye image and the eye image, and the sampling frequency of the preset image collector.

[0064] (III) Beneficial effects

[0065] The beneficial effects of the present invention are: compared with the prior art, the comprehensive dry eye control device of the present invention has a simple structure and can treat patients with dry eyes by obtaining instructions sent by the user, effectively reducing the operating difficulty of the comprehensive dry eye control device. At the same time, it can detect whether the execution component is reused before treatment, thereby avoiding health problems caused by repeated use of the execution component. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 This is a simplified structural diagram of a comprehensive dry eye control device;

[0067] Figure 2 It is a schematic diagram of the structure of a comprehensive control device for dry eyes;

[0068] Figure 3 A flow chart of the head recognition process for a dry eye comprehensive control device;

[0069] Figure 4 It is an industrial control flow chart of air pressure regulation of a comprehensive dry eye control device;

[0070] Figure 5 The present invention is a flowchart of the startup initialization process of a comprehensive dry eye control device. DETAILED DESCRIPTION

[0071] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0072] The comprehensive dry eye control device proposed in the embodiment of the present invention has a simple structure compared with the prior art. It can treat patients with dry eyes by obtaining instructions sent by users, effectively reducing the operating difficulty of the comprehensive dry eye control device. At the same time, it can detect whether the execution component is reused before treatment, thereby avoiding health problems caused by repeated use of the execution component.

[0073] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0074] Example 1

[0075] This embodiment provides a comprehensive dry eye control device, such as Figure 1 As shown, it includes a PC end (terminal), a main control component and an execution component; the main control component is responsible for receiving the adjustment instructions from the PC end, generating control instructions based on the adjustment instructions, and transmitting the control instructions to the control port, the control port is connected to the execution component, and the execution component performs corresponding operations according to the control instructions. The control instructions include instructions for controlling the target pressure and / or target temperature generated by the execution component.

[0076] Generally, the execution assembly includes an execution head, which has a heating circuit board and an air bag built in the execution head. The heating circuit board is used to provide a specified heat, and the air bag is used to provide a specified pressure.

[0077] The execution component also includes an air pressure sensor, a solenoid valve, a speed regulating air pump and a negative temperature coefficient thermistor circuit; wherein the pressure sensor is used to obtain the current pressure value of the airbag and send the current pressure value to the main control component, the main control component generates a speed command and an opening and closing command according to the current pressure value, sends the speed command to the speed regulating air pump to control the speed of the speed regulating air pump, and sends the opening and closing command to the solenoid valve to control the opening and closing state of the solenoid valve.

[0078] The main control component generates a control signal according to the regulation instruction to control the execution component so that the execution component performs the operation corresponding to the control signal, including: the main control component determines whether the execution component is connected to the main control component through the control port; if so, the specified heat is provided through the heating circuit board in the execution component, and the specified pressure is provided through the airbag in the execution component.

[0079] The step of providing a specified pressure through the airbag in the execution component includes: obtaining the current pressure value of the airbag in the execution component through the pressure sensor in the execution component, and sending the current pressure value to the main control component; the main control component generates a speed instruction and an opening and closing instruction according to the current pressure value; the speed instruction is sent to the air pump in the execution component through the main control component to control the speed of the air pump; and the opening and closing instruction is sent to the solenoid valve in the execution component through the main board to control the opening and closing state of the solenoid valve.

[0080] Providing a specified temperature through a heating circuit board in an execution component includes: obtaining the current temperature of an execution head in the execution component through a negative temperature coefficient thermistor in the execution component, and sending the current temperature to a main control component; generating a heating instruction or an overheating protection instruction according to the current temperature through a positive temperature coefficient thermistor of the main control component; and sending a heating instruction or an overheating protection instruction to the execution head of the execution component through a mainboard to control the temperature of the execution head.

[0081] A comprehensive dry eye control device provided in this embodiment includes a PC, a main control component and an execution component, wherein the main control component is used to generate a control instruction carrying a target temperature and / or target pressure according to a first user input instruction received by the PC, and send it to the execution component through a control port, thereby controlling the execution component to perform a corresponding operation. The heating circuit board in the execution component is used to provide a specified temperature, and the airbag is used to provide a specified pressure.

[0082] Example 2

[0083] This embodiment provides a comprehensive dry eye control device, such as Figure 3 As shown, it includes a terminal, a main control component and an execution component connected in sequence;

[0084] When the terminal receives the first user input information, it generates a control instruction according to the first user input information and sends it to the main control component;

[0085] When receiving the control command sent by the terminal, a monitoring command is sent to the execution component, and it is determined whether a response signal sent by the execution component is received within a preset time;

[0086] When the execution component receives the monitoring instruction sent by the main control component, it determines whether the monitoring instruction is correct according to the pre-set instruction library; if correct, it sends a response signal to the main control component;

[0087] When the main control component receives the response signal, it generates a control instruction according to the regulation instruction and sends it to the execution component; the execution component performs the corresponding operation according to the control instruction.

[0088] That is, when the terminal sends information to the main control component through the data line, the main control component will send a monitoring instruction to the execution component. The internal microcontroller of the execution component will respond after receiving the information and judging that the information is correct, and will not respond if it is wrong. A matching mechanism between the main control component and the execution component is provided to prevent damage to the user due to mismatch or repeated use of the execution component.

[0089] If the received monitoring instruction is correct, the internal microcontroller of the execution component reads the data in the internal Flash and sends a response signal according to the data. If the execution component is used for the first time, the data used by the execution component will be written into the Flash after detection.

[0090] The main control component determines whether the execution component is reused according to the response signal sent by the single-chip microcomputer in the execution component. When the main control component determines that the execution component is used for the first time, the execution component can be used normally to work.

[0091] This embodiment provides a method for the comprehensive dry eye control device to automatically detect whether the actuator component is reused before use, thereby avoiding health problems caused by the reuse of the actuator component.

[0092] Example 3

[0093] This embodiment provides a comprehensive dry eye control device, such as Figure 2 As shown, it includes a mainboard, an execution component and a PC end. The mainboard is used to receive the control instructions sent by the PC end user, generate a control signal based on the control instructions, and connect to the execution component through the control port. Among them, the mainboard can be an MCU (Microcontroller Unit, as a main control component). The mainboard is connected to the PC end through a USB interface, and the PC end transmits control instructions or stop instructions through the USB interface. The PC end can also connect to a printer to print the received temperature data and pressure data.

[0094] Furthermore, the mainboard is provided with a control port, which is connected to the execution component through the control port, and the mainboard is used to control the execution component according to the control signal, so that the execution component performs the operation corresponding to the control instruction. Among them, the mainboard can control the execution component to provide a specified temperature and a specified pressure, so that the execution component completes the dry eye treatment operation.

[0095] After the main board obtains the regulation instruction, it generates a control instruction based on the regulation instruction. Because the treatment of dry eyes requires local heating of the eyelids to liquefy the meibomian gland secretions, and because the treatment of dry eyes requires massaging and squeezing the eyelids, that is, applying pressure to the eyelids to discharge the meibomian gland secretions, the control instruction carries a specified temperature and / or a specified pressure so that the actuator provides the required temperature and pressure.

[0096] The data transmitted by the motherboard CPU to the PC side first follows the digital signal of the UART communication protocol and is sent to the component SP3232E through the serial port to be converted into a digital signal following the PS232 communication protocol format. Secondly, the digital signal is converted into a digital signal following the USB communication protocol through the RS232-USB conversion board, and the transmitted data information is sent to the PC side. The PC side sends the required instructions to the main control component through the USB data cable, and the digital signal following the USB communication protocol is converted into a digital signal of the RS232 communication protocol through the RS232-USB conversion board, and then converted into a digital signal following the UART communication protocol by the component SP3232E, and the instructions of the PC side are transmitted to the motherboard CPU of the main control component through UART to perform corresponding work processing on the instructions. The data communicated between the motherboard and the PC side includes: data uploaded by the execution component and instructions issued by the PC side.

[0097] Upload data: working mode of the actuator + left eye pressure + right eye pressure + left eye temperature + right eye temperature + time, etc.

[0098] Issue instructions: working mode + working status + whether the pressure target value has changed + pressure target value + whether the temperature target value has changed + temperature target value, etc.

[0099] Furthermore, the execution assembly includes an execution head, in which a heating circuit board and an air bag are arranged, the heating circuit board is used to provide a specified temperature, and the air bag is used to provide a specified pressure. When the device is working, the execution head is placed on the eyelid part of the patient, the heating circuit board in the execution head provides the specified temperature to the eyelid part according to the control of the main board, and the air bag in the execution head applies a specified pressure to the eye according to the control of the main board.

[0100] The main board is connected to the execution component, wherein the execution component includes a pressure sensor, a speed regulating air pump and a solenoid valve respectively connected to the airbag. Specifically, the air pressure sensor is used to obtain the current pressure value of the airbag and send the current pressure value to the main board. The main board is also used to generate a speed command and an opening and closing command according to the current pressure value, send the speed command to the speed regulating air pump to control the speed of the speed regulating air pump, and send the opening and closing command to the solenoid valve to control the opening and closing state of the solenoid valve. Because the execution component includes two execution heads, it is necessary to set pressure sensors, speed regulating air pumps and solenoid valves corresponding to the first execution head and the second execution head respectively, so as to realize the control of the two execution heads respectively. In addition, each execution head is also provided with a three-color light, which represents the current operating state of the execution head.

[0101] Furthermore, two pressure sensors (ie, the left pressure sensor and the right pressure sensor) are connected to the main board, and each pressure sensor is respectively connected to its corresponding air bag, speed regulating air pump and solenoid valve through a four-way connector.

[0102] Furthermore, the three-color light corresponding to the execution head is connected to the main board through the indicator light adjustment interface, and the eyelid execution head is connected to the main board through the temperature control interface.

[0103] The main board is connected to the execution component, wherein the execution component includes a negative temperature coefficient thermistor set on the execution head and a positive temperature coefficient thermistor set on the main board. The specific negative temperature coefficient thermistor is used to obtain and detect the current temperature of the execution head and send the current temperature to the main board. The positive temperature coefficient thermistor generates a heating instruction or an overheating protection instruction according to the current temperature to realize automatic temperature control.

[0104] Furthermore, the switch circuit is provided with an overload protection circuit, the LMR23625 synchronous buck converter, the AMS1117 linear regulator and the L78MO5CDT-TR regulator are all provided with an overload protection circuit and an overvoltage protection circuit, the execution head is provided with an overtemperature protection circuit, and the mainboard is provided with an overvoltage protection circuit. Among them, the above-mentioned overtemperature protection circuit, overload protection circuit and overvoltage protection circuit are respectively connected to the mainboard, and are used to provide overtemperature protection, overload protection and overvoltage protection for the execution component. In addition, the photoelectric coupling switch (A03416 oxide semiconductor field effect transistor) is also connected to the USB conversion line of the PC end, which is used to convert the first electric energy into the second electric energy; the LM358 operational amplifier is also connected to a detection circuit, which is used to monitor whether the second electric energy is stable and feed back the detection result to the mainboard.

[0105] The execution component can be provided with two execution heads, corresponding to the left eye and the right eye of the user respectively. Furthermore, the left eye and / or the right eye can be displayed and selected on the display of the PC. For example, when the user selects the left eye treatment and sends the corresponding adjustment instruction to the main board, the main board controls the left eye execution head to perform the specified operation, that is, the main board controls the left eye execution head to provide the specified temperature and the specified pressure.

[0106] The mainboard can also be connected to a buzzer to issue prompt sounds when the computer is turned on, the execution head detection passes, only one execution head passes, the execution head detection fails, the execution starts, the execution pauses, the execution ends, etc.

[0107] Furthermore, the comprehensive dry eye control device provided in this embodiment is also provided with an image collector corresponding one-to-one to the execution head, and the image collector is connected to the PC end to realize the detection of the tear film rupture time.

[0108] The image collector collects the corresponding eye image in real time within the preset time, or collects the video of the preset time, and sends it to the PC.

[0109] When the image collector acquires images, the PC will sort all the eye images according to the order in which the eye images are received (and mark the corresponding serial numbers one by one according to the order of arrangement).

[0110] All eye images are input into the pre-trained feature point positioning model to obtain the feature point image corresponding to each eye image and the pixel coordinates of the four key points in the feature point image.

[0111] The training process of the feature point positioning model is as follows: collect a large number of facial images and compare the feature point positions of the glasses, which include key points such as the corners of the eyes and eyelids; preprocess the collected images (scaling, rotation, cropping, etc.) to ensure that the relative positions of the feature points in the image remain unchanged; use the HOG feature extractor and linear SVM classifier in the Dlib library to train the preprocessed images, and finally obtain the feature point positioning model.

[0112] According to the pixel coordinates of the four key points of each feature point image, and the preset formula 1, the aspect ratio corresponding to each eye image is obtained; the formula 1 is:

[0113]

[0114] Where P is the aspect ratio of the eye image, X2 and X4 are the horizontal coordinates of the left and right key points, Y1 and Y3 are the vertical coordinates of the upper and lower key points, and w is the preset rotation parameter;

[0115] According to a preset aspect ratio threshold and the aspect ratio corresponding to any eye image, it is determined whether the eye image belongs to closed eyes or open eyes.

[0116] As another example, all eye images are input into a pre-trained feature point positioning model to obtain the feature point image corresponding to each eye image and the pixel coordinates of all feature points in the feature point image. According to the difference in the horizontal coordinates and the difference in the vertical coordinates of any two feature points in the pixel coordinates of all feature points in the eye image, the two feature points with the largest difference in the horizontal coordinates and the two feature points with the largest difference in the vertical coordinates are marked, that is, the four key points of up, down, left, and right. At this time, the pre-set rotation parameter is 0.

[0117] Based on the four key points of top, bottom, left and right, the aspect ratio corresponding to the eye image is obtained, and then it is determined whether the eye image belongs to closed eyes or open eyes.

[0118] After all the eye images have been judged, all the eye images of open eyes are input into a preset tear film breakup detection model to detect whether the tear film in each eye image has broken;

[0119] When the tear film breaks in any eye image of an open eye, the eye image is marked;

[0120] The tear film breakup time is obtained according to the number of interval images between the image of the eye that is closest to the closed eye before the marked eye image and the eye image, and the sampling frequency of the preset image collector.

[0121] Specifically, after all the eye images have been judged, all the eye images belonging to the open eyes are input into the preset tear film breakage detection model, and then the tear film breakage position corresponding to each image is obtained. As time goes by, the tear film will break. When the first dry spot or dry point appears on the tear film surface, the corresponding tear film begins to break. Therefore, not every image has a tear film breakage position. In other words, when the tear film does not break, the corresponding tear film breakage position output by the tear film breakage detection model does not exist. In other words, when the output corresponding tear film breakage position does not exist, it can be known that the tear film has not broken, that is, the first dry spot or dry point does not appear on the tear film surface. When the tear film breaks, there is at least one dry spot or dry point on the tear film surface, and then the tear film breakage time can be determined by the image with the first dry spot or dry point and the closed eye image before and closest to this image, as well as the acquisition frequency of the preset image collector.

[0122] Specifically, a first mark is added to the image with open eyes, and a second mark is added to the image with closed eyes. For example, the first mark is set to 1, and the second mark is set to 0. That is, in all the eye images after arrangement, continuous 1s correspond to an open-eye segment, and continuous 0s correspond to a closed-eye segment. When it is detected that two open-eye segments are connected by a closed-eye segment, a blink is detected. Preferably, the image for determining the tear film rupture time should be between two blinks, and the time between the two blinks should exceed a certain value.

[0123] The PC records the tear film breakup time as a reference for the user's selection of temperature and pressure. When the user chooses to automatically perform treatment based on the current tear film breakup time, the tear film breakup time is counted according to the above process and the severity of dry eye syndrome is determined based on the tear film breakup time, that is, tear film breakup time ≤5 seconds is severe, 5 seconds < tear film breakup time ≤10 seconds is ordinary, and tear film breakup time ≥10 seconds is mild.

[0124] This embodiment provides a comprehensive dry eye control device, which has a simple structure and can treat patients with dry eye by obtaining instructions sent by the user, effectively reducing the difficulty of operating the comprehensive dry eye control device. The image collector can monitor the tear film breakup time of the user at any time, thereby reflecting the current dry eye lesion situation of the user to a certain extent, and providing a certain reference for the selection of temperature and massage pressure. The automatic selection of temperature and massage pressure based on the tear film breakup time provides convenience for the user when using the device.

[0125] Example 4

[0126] This embodiment provides a control method for a comprehensive dry eye control device:

[0127] Before obtaining the user input information entered by the user, after the main board (main control component) is powered on, it is detected whether the execution component is connected to the main board. At this time, the buzzer will issue a power-on prompt, the execution head indicator light (that is, the three-color light corresponding to the execution head) will remain red, and the buzzer will issue three prompts, indicating that the execution head detection has not passed. At this time, the main board will pass this self-test failure signal to the main board. After the main board processes it, it will display "*Eye failed to pass the detection" on the display to wait for user operation. When the three-color light corresponding to the execution head remains green, and the buzzer will issue a prompt once, indicating that the treatment head detection has passed, the main board will pass this self-test success signal to the main board. After the main board processes it, it will display "*Eye passed the detection" on the display to wait for user operation.

[0128] The user clicks the corresponding button on the PC, which means that after issuing the command, the control command is transmitted to the motherboard through the USB interface. According to the user's needs, the right eye, left eye, or both eyes can be selected separately.

[0129] The mainboard generates a control instruction based on the regulation instruction. The control instruction carries a specified temperature and / or a specified pressure. Both the temperature and the pressure can be adjusted.

[0130] The execution component is controlled by the control instruction so that the execution component performs the corresponding operation. Specifically:

[0131] The current pressure value of the airbag in the actuator component is obtained through the pressure sensor in the actuator component, and the current pressure value is sent to the main board, and the main board generates a speed command and an opening and closing command according to the current pressure value, and then the speed command is sent to the speed regulating air pump in the actuator component through the main board to control the speed of the speed regulating air pump; and the opening and closing command is sent to the solenoid valve in the actuator component through the main board to control the opening and closing state of the solenoid valve.

[0132] The pressure sensor converts the pressure signal into an electrical signal and transmits it to the main control board. The main control board outputs a PWM signal (i.e., the aforementioned speed command) to control the speed of the speed regulating air pump. At the same time, the main control board outputs high and low levels (i.e., the aforementioned opening and closing commands) to control the conduction and shutoff of the solenoid valve coil, and controls and adjusts the pressure value in the airbag to meet the target curve. The measurement accuracy of the air pressure sampling circuit is ±1%. It operates in a 24Kpa constant pressure mode from 0 to 2 minutes; from 2 to 4 minutes, it collects pressure points every 6 seconds and increases the pressure change mode to 24Kpa at a uniform speed; from 4 to 6 minutes, it collects pressure points every 6 seconds, and the pulse pressure change mode is from 0Kpa to 28.5Kpa to 0Kpa; from 6 to 12 minutes, the operation mode of 0 to 6 minutes is repeated.

[0133] After the execution component starts working, Figure 4 As shown, in the air pressure control function of the project, the PWM of the corresponding duty cycle is output according to the preset air pressure value, and the air pump starts to work. During the working process, the air pressure value is collected once each time the main function is executed. If the air pressure value is within the preset range for turning on the air pump, the air pump is turned on, otherwise the air pump is turned off, so that the air pressure value in the treatment work is absolutely in a dynamic balance. The air pump stops working until the work is finished, and the air pressure control ends.

[0134] The main control board drives the eyelid heating interface board circuit (that is, the aforementioned heating circuit board) to output a constant current, and the temperature of the eyelid treatment head rises rapidly to 42.5°C within a certain period of time. When the temperature rises to 42.5°C, the temperature is fed back to the main control board through the thermistor inside the eyelid treatment head, and the current is adjusted according to the temperature, so that the temperature of the heating device is always maintained at 42.5°C (wherein the measurement accuracy of the temperature sampling circuit is ±1°C, and the target measurement accuracy of the eyelid treatment head is ±1°C), and it is also maintained for at least 12 minutes with the treatment time. During this period, the current must be less than or equal to a certain control current. Among them, the temperature is adjustable from 38°C to 42.5°C.

[0135] The eyelid heating interface board circuit has an overcurrent protection function. The program in the chip will stop treatment. If the current exceeds a large value, the chip will even be self-destructed to ensure that the circuit stops treatment to protect the eyes. The eyelid heating interface board circuit also has an overheating protection function. When it is detected that the temperature of the eyelid treatment head is greater than or equal to 44°C, the eyelid heating interface board circuit will stop outputting current and stop heating the eyelid treatment head to prevent burns to the eyes.

[0136] First, during the initialization of the power on, Figure 5As shown in the figure, the default target temperature value of the treatment head is set; secondly, after calling the temperature control function in the working mode, the heating temperature data is collected every 500ms, and the actual temperature of the actual treatment head heating resistor is calculated in the temperature curve formula after multiple measurements and fitting; then the duty cycle of the PWM wave required by the heating resistor is calculated in the PID temperature control function; finally, the PWM with the corresponding duty cycle is output to achieve the purpose of controlling the temperature. In the instructions issued during the working process, there are instructions to change the temperature target value. After reading the temperature target value that needs to be changed, the PID calculation value is assigned and the PID temperature control function is reinitialized. After the work is completed, the PID calculation value is restored to the default value and the PID temperature control function is initialized.

[0137] After the execution component receives the detection instruction, it calls the detection function pre-set by the treatment head. In the treatment head detection function, the treatment head of the left eye is first detected. The host sends a detection signal to the treatment head of the left eye. After the single-chip microcomputer in the treatment head receives the detection signal, the single-chip microcomputer reads the information stored in the internal Flash and then sends a corresponding response signal to the host. Then the host sends the same signal to the treatment head of the right eye. After the single-chip microcomputer in the treatment head returns the response signal, the host sends the corresponding data signal to the computer.

[0138] When the stop button of both eyes is pressed or the 12-minute treatment time is reached, the temperature control interface circuit will automatically stop heating, and the LED indicator around the temperature control interface will change from green to white; at the same time, the control board will output a speed command through the pressure regulation interface to control the speed regulating air pump to stop working, and at the same time output an opening and closing command to control the solenoid valve to open the valve and release the air pressure in the air bag;

[0139] In particular, the chip on the eyelid heating interface board will receive a signal and automatically be destroyed according to the program to ensure that the treatment head is disposable; after the main control board receives a signal, it automatically stops heating and applying pressure, indicating that the treatment has terminated.

[0140] The buzzer will sound when the machine is turned on, according to the probe detection, and when the treatment status changes. The three-color light is white by default, and the color will be displayed according to the result of the probe detection after the probe detection. After the treatment is completed, remove the treatment head from the machine and the eye. The disposable treatment head cannot be used again. Furthermore, 3 seconds after the treatment ends, the current treatment report will be automatically displayed.

[0141] During the entire treatment process, the remaining time, pressure and temperature of each eye can be monitored on the display screen, and these parameters are displayed in numbers and graphics on the screen. Among them, the first row of icons is the standard pressure curve graph, the second row of icons is the actual pressure curve graph after pressure adjustment, and the third row of icons is the eyelid heating curve graph.

[0142] The control method of the comprehensive dry eye control device provided in this embodiment receives the instruction sent by the user through the mainboard, generates a control instruction carrying a specified heat and / or specified pressure based on the instruction, and controls the execution component according to the control instruction so that the execution component performs the operation corresponding to the control signal. The embodiment of the present invention only needs the user to send an instruction to control the comprehensive dry eye control device to treat the patient, and has a simple structure and is easy to operate.

[0143] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0144] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0145] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0146] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0147] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A comprehensive control device for dry eyes, characterized in that: include: Terminals, main control components and execution components connected in sequence; The terminal is used to, when receiving the first user input information, generate a control instruction according to the first user input information and send it to the main control component; The main control component is used to send a monitoring instruction to the execution component when receiving a control instruction sent by the terminal, and determine whether a response signal sent by the execution component is received within a first preset time; When a response signal is received, judging whether the execution component is used for the first time according to the received response signal, and if it is used for the first time, generating a control instruction according to the control instruction and sending it to the execution component; The execution component is used to send a response signal to the main control component according to the preset configuration parameters when receiving the monitoring instruction sent by the main control component; When receiving a control instruction sent by the main control component, the corresponding operation is performed according to the control instruction; The configuration parameter includes a first parameter or a second parameter, and when the execution component is used, the preset first parameter will be changed to the second parameter; The first user input information includes a target pressure and / or a target temperature generated by the actuator; The control instruction is an instruction for controlling the target pressure and / or target temperature generated by the actuator.

2. The comprehensive dry eye control device according to claim 1, characterized in that: The main control component includes a control port arranged on the main control component, and the main control component is connected to the execution component through the control port; The main control component is also used to detect in real time whether the control port is connected to the execution component. When it is detected that the control port is connected to the execution component, it is determined whether a connection signal sent by the execution component is received within a second preset time; if received, a signal prompting that the execution component is connected normally is sent and fed back to the terminal; If not received, a signal indicating abnormal connection of the execution component is sent and fed back to the terminal; The connection signal is a signal sent by the execution component to the main control board when the execution component is connected to the main control board through the control port.

3. The comprehensive dry eye control device according to claim 1, characterized in that: The execution component is also used to determine whether the monitoring instruction is correct according to a preset instruction library when receiving the monitoring instruction sent by the main control component. If correct, it sends a response signal to the main control component according to the preset configuration parameters.

4. The comprehensive dry eye control device according to claim 1, characterized in that: The actuator assembly includes: an actuator head, an air pressure sensor, a solenoid valve, a speed regulating air pump and a negative temperature coefficient thermistor; the actuator head includes an air bag and a heating circuit board; the main control assembly includes: a main control board and a positive temperature coefficient thermistor arranged on the main control board; Among them, the air pressure sensor, the solenoid valve and the speed regulating air pump are respectively connected to the airbag, and the air pressure sensor is used to obtain the current pressure value of the airbag in real time and send the current pressure value to the main control board; The negative temperature coefficient thermistor is connected to the heating circuit board and the positive temperature coefficient thermistor respectively. The negative temperature coefficient thermistor is used to obtain the current temperature of the heating circuit board in real time and send the current temperature to the main control board; The main control component generates control instructions based on the control instructions and sends them to the execution component, including: The main control board generates a speed command and an opening and closing command according to the control command sent by the terminal and the current pressure value sent by the pressure sensor, and sends the speed command to the speed regulating air pump to control the speed of the speed regulating air pump, and sends the opening and closing command to the solenoid valve to control the opening and closing state of the solenoid valve; The positive temperature coefficient thermistor generates a temperature adjustment instruction according to the received control instruction and the current temperature value, and sends it to the negative temperature coefficient thermistor to control the temperature of the heating circuit board; the control instruction includes a temperature adjustment instruction, a speed instruction and an opening and closing instruction.

5. The comprehensive dry eye control device according to claim 4, characterized in that: The main control board generates a speed instruction and an opening and closing instruction according to the control instruction sent by the terminal and the current pressure value sent by the pressure sensor, including: The main control board generates a speed command and an opening and closing command according to the target pressure value and the current pressure value in the received control command; The positive temperature coefficient thermistor generates a temperature adjustment instruction according to the received control instruction and the current temperature value, including: Generate a temperature adjustment instruction according to the target temperature value and the current temperature value in the received control instruction; The control instruction includes a target pressure value and a target temperature value; the temperature adjustment instruction includes a temperature increase instruction and an overheat protection instruction.

6. The comprehensive dry eye control device according to claim 1, characterized in that: The execution assembly includes a first execution head and a second execution head; Then, when the terminal receives the first user input information input by the user, it generates a control instruction according to the first user input information and sends it to the main control component, including: When the treatment terminal receives first user input information input by the user, it generates a first control instruction and / or a second control instruction according to the first user input information and sends it to the main control component; The main control component generates a control instruction according to the control instruction and sends it to the execution component, including: The main control component generates a first control instruction and / or a second control instruction corresponding to the first control instruction and / or the second control instruction according to the received first control instruction and / or the second control instruction, and sends the first control instruction and / or the second control instruction to the corresponding execution head; The first execution head is used to execute an operation corresponding to the first control signal when the first execution head receives the first control instruction; The second execution head is used to execute the operation corresponding to the second control signal when the second execution head receives the second control instruction; The regulating instruction includes: a first regulating instruction and / or a second regulating instruction, and the control instruction includes a first control instruction and / or a second control instruction.

7. The comprehensive dry eye control device according to claim 1, characterized in that: The execution component is also used to detect the current temperature value and pressure value in real time, and determine in real time whether the current temperature value and pressure value are greater than the preset temperature threshold and pressure threshold; When the current temperature value is greater than the first temperature threshold and less than the second temperature threshold, or the current pressure value is greater than the first pressure threshold, the execution component stops immediately; When the current temperature value is greater than the second temperature threshold, or the current pressure value is greater than the second pressure threshold, the execution component self-destructs according to a preset self-destruction program.

8. The comprehensive dry eye control device according to claim 1, characterized in that: The device also includes: an image collector; The terminal is further configured to, when receiving second user input information input by a user, obtain the tear film breakup time according to the eye image acquired in real time by the image acquirer within a preset time; and generating first user information according to the tear film breakup time and a preset mapping table; The mapping table includes when the tear film breakup time is ≤ 5 seconds, the target temperature is a first temperature, and the target pressure is a first pressure; When the tear film breakup time is 5 seconds < ≤ 10 seconds, the target temperature is the second temperature, and the target pressure is the second pressure; When the tear film breakup time is ≥10 seconds, the target temperature is the third temperature and the target pressure is the third pressure; 24Kpa≤third pressure<second pressure<first pressure≤29Kpa; 38℃≤third temperature<second temperature<first temperature≤43℃.

9. The comprehensive dry eye control device according to claim 8, characterized in that: The terminal obtains the tear film breakup time according to the eye image collected in real time by the image collector within a preset time, including: Arrange all eye images received within a preset time in a receiving order; Input all eye images into a pre-set feature point positioning model to obtain a feature point image corresponding to each eye image and pixel coordinates of four key points in the feature point image; the feature point image includes an image marking the four key points of the eye; According to the pixel coordinates of the four key points of each feature point image, and the preset formula 1, the aspect ratio corresponding to each eye image is obtained; the formula 1 is: Where P is the aspect ratio of the eye image, X2 and X4 are the horizontal coordinates of the left and right key points, Y1 and Y3 are the vertical coordinates of the upper and lower key points, and w is the preset rotation parameter; According to a preset aspect ratio threshold and the aspect ratio corresponding to any eye image, determining whether the eye image is closed or open; After all the eye images are judged, the tear film breakup time is obtained based on all the eye images.

10. The comprehensive dry eye control device according to claim 9, characterized in that: The terminal, after all the eye images are judged, obtains the tear film breakup time according to all the eye images, including: Input all the eye images of open eyes into the pre-set tear film breakup detection model to detect whether the tear film in each eye image is broken; When the tear film breaks in any eye image of an open eye, the eye image is marked; The tear film breakup time is obtained according to the number of interval images between the image of the eye that is closest to the closed eye before the marked eye image and the eye image, and the sampling frequency of the preset image collector.

Images