Intraocular pressure measuring device, method and system, computer equipment and storage medium

Abstract

The invention relates to an intraocular pressure measuring device, method and system, computer equipment and a storage medium. The device comprises a fixed assembly and a movable assembly, and the movable assembly and the fixed assembly are in sliding connection in the axial direction. The movable assembly comprises a probe, a fixed shaft and an abutting piece; a pressure sensor is arranged on the side, away from the abutting piece, of the probe, and a magnetic field sensor is arranged on the outer side wall of the fixing shaft. The fixing assembly is provided with a mounting groove opposite to the magnetic field sensor, and a permanent magnet pair is arranged in the mounting groove; the abutting piece drives the probe to move in the axial direction through the fixed shaft, under the condition that the probe moves in the axial direction to enable the pressure sensor to abut against the eyelid of a target object, the magnetic field sensor measures the moving distance of the movable assembly in a magnetic field generated by the permanent magnet pair, and the moving distance is used for calculating the intraocular pressure of the target object. By adopting the device, the accuracy of intraocular pressure measurement can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular, to an intraocular pressure measurement device, method, system, computer device, storage medium, and computer program product. Background Art

[0002] With the development of computer technology, intraocular pressure measurement technology has emerged. This technology is used for intraocular pressure detection in medical devices and medical methods. By detecting intraocular pressure, it can control the conditions of patients such as glaucoma and effectively prevent possible eye diseases in patients with diabetes and hypertension. Currently, intraocular pressure measurement devices can be divided into three types: applanation type, reflection type, and sensor type. Among them, the applanation tonometer is the current gold standard for intraocular pressure measurement. When the eyeball is flattened by a certain area, the intraocular pressure can be obtained by dividing the force flattening the eyeball by the area of the flattened part. The reflection tonometer calculates the intraocular pressure of the target object by hitting the eyeball with an air current or a probe and according to the strength and speed of the rebound of the air current or the probe.

[0003] In traditional technologies, the advancement distance is controlled relatively precisely by a stepper motor, and intraocular pressure estimation is performed by combining pressure measurement. By combining digital and automated measurement methods, the intraocular pressure of the target object can be measured without the assistance of others. However, the intraocular pressure measurement instruments in traditional technologies are large in size and complex in structure. Therefore, during the long-term use by the target object, the measurement efficiency of the intraocular pressure of the target object is low. Summary of the Invention

[0004] Based on this, in order to solve the above technical problems, it is necessary to provide an intraocular pressure measurement device, method, system, computer device, computer-readable storage medium, and computer program product that can improve the measurement efficiency of the intraocular pressure of the target object.

[0005] In a first aspect, the present application provides an intraocular pressure measurement device, the device comprising:

[0006] A fixed component and a movable component, the movable component being slidably connected to the fixed component along the axial direction;

[0007] The movable component includes a probe, a fixed shaft, and a pushing member; a pressure sensor is disposed on one side of the probe away from the pushing member, and a magnetic field sensor is disposed on the outer sidewall of the fixed shaft;

[0008] The fixed component is provided with an installation groove disposed opposite to the magnetic field sensor, and a pair of permanent magnets is disposed in the installation groove;

[0009] The pushing member drives the probe to move axially through the fixed shaft. When the probe moves axially so that the pressure sensor presses against the eyelid of the target object, the magnetic field sensor measures the moving distance of the movable assembly in the magnetic field generated by the permanent magnet pair, and the moving distance is used to calculate the intraocular pressure of the target object.

[0010] Second, the present application also provides an intraocular pressure measurement method, which is applied to the above intraocular pressure measurement device to measure the intraocular pressure. The method includes:

[0011] When the initial measured pressure value for the eyelid of the target object is greater than the detection pressure threshold, obtain the initial measured magnetic induction intensity corresponding to the target object;

[0012] In response to the current measured pressure value of the eyelid of the target object, obtain the current measured magnetic induction intensity corresponding to the target object;

[0013] Based on the current measured magnetic induction intensity and the initial measured magnetic induction intensity, obtain the intraocular pressure measurement moving distance;

[0014] Calculate the intraocular pressure measurement value of the target object according to the intraocular pressure measurement moving distance.

[0015] Third, the present application also provides a wearable intraocular pressure monitoring system, including the above intraocular pressure measurement device.

[0016] Fourth, the present application also provides a computer device. The computer device includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0017] When the initial measured pressure value for the eyelid of the target object is greater than the detection pressure threshold, obtain the initial measured magnetic induction intensity corresponding to the target object;

[0018] In response to the current measured pressure value of the eyelid of the target object, obtain the current measured magnetic induction intensity corresponding to the target object;

[0019] Based on the current measured magnetic induction intensity and the initial measured magnetic induction intensity, obtain the intraocular pressure measurement moving distance;

[0020] Calculate the intraocular pressure measurement value of the target object according to the intraocular pressure measurement moving distance.

[0021] Fifth, the present application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0022] When the initial measured pressure value of the eyelid of the target object is greater than the detection pressure threshold, obtain the initial measured magnetic induction intensity corresponding to the target object;

[0023] In response to the current measured pressure value of the eyelid of the target object, obtain the current measured magnetic induction intensity corresponding to the target object;

[0024] According to the current measured magnetic induction intensity and the initial measured magnetic induction intensity, obtain the moving distance for intraocular pressure measurement;

[0025] Calculate the intraocular pressure measurement value of the target object according to the moving distance for intraocular pressure measurement.

[0026] The above-mentioned intraocular pressure measurement device, method, system, computer device, computer-readable storage medium and computer program product include a fixed component and a movable component. The movable component is slidably connected to the fixed component along the axial direction; the movable component includes a probe, a fixed shaft and a pushing member; a pressure sensor is arranged on one side of the probe away from the pushing member, and a magnetic field sensor is arranged on the outer side wall of the fixed shaft; the fixed component is provided with an installation groove opposite to the magnetic field sensor, and a pair of permanent magnets is arranged in the installation groove; the pushing member drives the probe to move axially through the fixed shaft, so that when the pressure sensor presses against the eyelid of the target object, the magnetic field sensor measures the moving distance of the movable component in the magnetic field generated by the pair of permanent magnets, and the intraocular pressure of the target object is calculated through the moving distance. In addition, the double magnets and the magnetic field sensor form a micro linear displacement measurement component, which can realize continuous measurement of the pressing distance at the sub-millimeter level, meet the long-term use needs of the target object, support a variety of different measurement methods, and the system structure is simple and the measurement accuracy of the intraocular pressure is improved. Description of the Drawings

[0027] Figure 1 Schematic diagram of a portable intraocular pressure measurement system in an embodiment;

[0028] Figure 2 Schematic diagram of a movable component in an embodiment;

[0029] Figure 3 Schematic diagram of a fixed component in an embodiment;

[0030] Figure 4 Schematic diagram of the ranging principle in an embodiment;

[0031] Figure 5 Schematic diagram of a ranging component in an embodiment;

[0032] Figure 6 Schematic diagram of a power unit in an embodiment;

[0033] Figure 7 Schematic diagram of the flow of a method for intraocular pressure measurement in an embodiment;

[0034] Figure 8 It is a schematic flowchart of a method for obtaining the moving distance in intraocular pressure measurement in an embodiment;

[0035] Figure 9 It is a schematic flowchart of a method for obtaining the intraocular pressure measurement value in an embodiment;

[0036] Figure 10 It is a schematic flowchart of an automatic intraocular pressure measurement method in an embodiment;

[0037] Figure 11 It is a schematic diagram of a distance-pressure curve in an embodiment;

[0038] Figure 12 It is a structural block diagram of an intraocular pressure measurement module in an embodiment;

[0039] Figure 13 It is an internal structure diagram of a computer device in an embodiment. Detailed implementation manners

[0040] To make the above objects, features, and advantages of the present application more obvious and understandable, the following describes the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0041] In the traditional technology, the propulsion distance is accurately controlled by a stepper motor, and intraocular pressure estimation is performed by combining pressure measurement with a digital and automated measurement method, enabling the measurement of intraocular pressure for a target object without human assistance. However, the intraocular pressure measurement instrument in the traditional technology is large in volume and complex in structure. Therefore, during the long-term use by the target object, the measurement efficiency of the intraocular pressure of the target object is low. The movable component 100 of the intraocular pressure measurement device of the present application includes a probe 110, a fixed shaft 120, and a pushing member 130. A pressure sensor 140 is provided on the probe 110, and a magnetic field sensor 150 is provided on the outer side wall of the fixed shaft 120. The fixed component 200 has a mounting groove 210, in which a pair of permanent magnets 220 is provided. The pushing member 130 drives the probe 110 to move axially through the fixed shaft 120, so that the pressure sensor 140 presses against the eyelid of the target object. The magnetic field sensor 150 measures the moving distance of the movable component 100 in the magnetic field generated by the pair of permanent magnets 220, and this distance is used to calculate the intraocular pressure of the target object. By designing a micro linear displacement measurement component composed of a double magnet and the magnetic field sensor 150, continuous measurement of the pressing distance at the sub-millimeter level can be performed, meeting the long-term use requirements of the target object. Moreover, this device can support a variety of different measurement methods, and the system is simple and the cost is low, improving the accuracy of intraocular pressure measurement. The fixed component 200 provided in this embodiment may include a fixed bracket, and the movable component 100 is detachably mounted on the fixed bracket.

[0042] Based on this, Figure 1 Fig. shows the overall schematic diagram of the structure of the intraocular pressure measurement device in the first embodiment of the present application, Figure 2 Fig. shows a partial schematic diagram of the movable component 100 of the intraocular pressure measurement device in the first embodiment of the present application; Figure 3 Fig. shows a partial schematic diagram of the fixed component 200 of the intraocular pressure measurement device in the first embodiment of the present application. Among them, the fixed component 200 and the movable component 100 are slidably connected axially; the movable component 100 includes a probe 110, a fixed shaft 120, and a pushing member 130; a pressure sensor 140 is provided on the side of the probe 110 away from the pushing member 130, and a magnetic field sensor 150 is provided on the outer side wall of the fixed shaft 120; the fixed component 200 is provided with a mounting groove 210 arranged opposite to the magnetic field sensor 150, and a pair of permanent magnets 220 is provided in the mounting groove 210; the pushing member 130 drives the probe 110 to move axially through the fixed shaft 120. When the probe 110 moves axially so that the pressure sensor 140 presses against the eyelid of the target object, the magnetic field sensor 150 measures the moving distance of the movable component 100 in the magnetic field generated by the pair of permanent magnets 220, and the moving distance is used to calculate the intraocular pressure of the target object.

[0043] Specifically, the fixing component 200 is similar to VR glasses and can be well fixed to the human skull, maintaining relative rest with the skull, providing a basis for subsequent eyelid pressing, distance measurement, and pressure measurement. Only the part of the fixing component 200 close to the eyeball is schematically drawn in this application.

[0044] As Figure 2 shown, the main functions of the movable component 100 are to measure the pressing pressure and the pressing distance, and the two are carried out synchronously. Among them, the pressure measurement part is executed by the pressure sensor 140. As Figure 3 shown, the fixing component 200 has a sleeve 240 at the part facing the eyelid, and a movable component 100 can be inserted in the middle. The movable component 100 is axially slidably connected to the fixing component 200, and the movable component 100 can move axially in the sleeve 240, similar to the piston in a syringe. At the front end of the movable component 100, close to the eyelid part, there is a protruding probe 110, and a pressure sensing array is arranged on the surface, which can measure the eyeball rebound pressure when the probe 110 presses the eyelid and transmit it to the data processing unit in real time. The latter can store it or send it to the application end or monitoring device (such as mobile phone, portable recorder, personal computer) through BLE. In order to reduce the pressure measurement error caused by the non-direct pressing problem (as Figure 4 shown), the pressure sensing array in front of the probe 110 can be set to be distributed, that is, it contains multiple sensing sensitive units for multi-point synchronous measurement. Later, the pressure distribution can be viewed, and their real-time mean value or real-time maximum value can be output, etc.

[0045] As Figure 2 shown, the movable component 100 includes a probe 110, a fixed shaft 120, and a pushing member 130; a pressure sensor 140 is arranged on the side of the probe 110 away from the pushing member 130, and a magnetic field sensor 150 is arranged on the outer side wall of the fixed shaft 120; and the fixing component 200 is provided with an installation groove 210 arranged opposite to the magnetic field sensor 150, and a permanent magnet pair 220 is arranged in the installation groove 210. The moving distance of the movable component 100 is measured by two permanent magnet pairs 220 (pm1, 2) fixed on the fixing component 200, arranged axially and with opposite polarities. Each permanent magnet pair 220 is a cylinder with the N48 grade, a diameter of 6 mm and a height of 3 mm, and the distance between them is 5 - 7 mm. Fixed on the movable component 100, the magnetic field sensor 150 located below the permanent magnet pair 220 measures it. As Figure 1 shown, the polarities of the two magnet pairs are opposite, and the magnetization direction is parallel or anti-parallel to the Figure 5 shown Z-axis. The sensor can be a single-axis Hall sensor, and the measurement axis is parallel to the Figure 5 shown Z-axis. From Figure 1As can be seen from the right side, when the magnetic field sensor 150 is several millimeters below and in the middle of the two permanent magnets and moves within a small range along the axial direction, the detected magnetic field component has a good linear relationship with the distance ( Figure 5 the straight part on the right side), so the change in distance can be deduced from the change in the measured magnetic field, which belongs to relative measurement. In another solution, the magnetic field value can also be mapped to the absolute position (such as defining the middle of the two magnets as the zero point) through calibration, so as to directly measure the current position.

[0046] Furthermore, the pushing member 130 drives the probe 110 to move along the axial direction through the fixed shaft 120. When the probe 110 moves along the axial direction so that the pressure sensor 140 presses against the eyelid of the target object, the magnetic field sensor 150 measures the moving distance of the movable assembly 100 in the magnetic field generated by the permanent magnet pair 220, and the moving distance is used to calculate the intraocular pressure of the target object.

[0047] In one embodiment, as Figure 2 shown, the pressure sensor 140 includes a distributed pressure sensing array; the pressure sensing array includes a plurality of sensing sensitive units evenly spaced on the outer peripheral surface of the probe 110, and each sensing sensitive unit is used to collect the contact pressure data between the corresponding position area of the outer peripheral surface of the probe 110 where it is located and the eyelid.

[0048] Specifically, since during the use of the target object, it may occur that the wearable intraocular pressure measuring device is not worn properly, resulting in the situation that the movable assembly 100 presses non-directly. At this time, if there is only one sensing sensitive unit on the pressure sensor 140 of the probe 110, it is easy to obtain inaccurate pressure values. Setting a plurality of sensing sensitive units on the probe 110 can reduce the influence of non-direct pressing and output the real-time mean value or more reasonably output the real-time maximum value as the detection result.

[0049] In one embodiment, as Figure 3 shown, the fixed assembly 200 further includes a guide groove, and the guide groove is slidably connected to the movable assembly 100; the guide groove is used to keep the axis of the fixed assembly 200 coincident with the axis of the movable assembly 100 when the movable assembly 100 and the fixed assembly 200 move relative to each other.

[0050] Specifically, the guiding groove plays a crucial role in the intraocular pressure measuring device provided in this application. It is designed to be slidably connected to the movable component 100 to ensure that when the movable component 100 and the fixed component 200 move relative to each other, the axes of the two can always remain coincident. The purpose of the design provided in this application is to maintain the accuracy and stability of the measurement system. Through the guidance of the guiding groove, the movable component 100 is accurately positioned during axial movement, enabling the axis of the fixed component 200 to remain aligned with the axis of the movable component 100, thereby ensuring the accuracy of intraocular pressure measurement. The axis coincidence mechanism under relative movement provided in this application helps to improve the reliability of the measuring device, enabling it to more accurately obtain the intraocular pressure data of the target object.

[0051] In one embodiment, as Figure 3 shown, a limit card is further provided on the surface of the guiding groove. The limit card is located between the probe 110 and the pushing member 130, and the limit card is used to define the movement scale of the movable component 100 in the fixed component 200.

[0052] Specifically, a limit card is further provided on the surface of the guiding groove. The limit card is located between the probe 110 and the pushing member 130, that is, two limit cards are provided in the sleeve 240. Therefore, the movable component 100 has only a limited axial movement stroke, which can avoid accidentally injuring the eyeball from a safety perspective; from a stability perspective, it can prevent the movable component 100 from falling out of the sleeve 240; from a measurement perspective, it can make the distance measurement in the linear segment of magnetic field change.

[0053] In one embodiment, as Figure 2 shown, the pushing member 130 is provided with a cavity 131 for accommodating the data processing unit; the data processing unit is respectively connected to the pressure sensor 140 and the magnetic field sensor 150, and the data processing unit is used to connect to the terminal device.

[0054] Specifically, the pushing member 130 has multiple functions in the intraocular pressure measuring device provided in this application. A cavity 131 is designed inside it, specifically for accommodating the data processing unit. The data processing unit is connected to the pressure sensor 140 and the magnetic field sensor 150, realizing the function of real-time processing and analysis of the data collected by the measuring device. By connecting to the pressure sensor 140 and the magnetic field sensor 150, the data processing unit can effectively integrate and process the information from these two sensors, thereby providing more comprehensive and accurate intraocular pressure data. In addition, the data processing unit also has the ability to connect to the terminal device, enabling the measurement results to be conveniently transmitted to external devices or systems, providing timely and detailed intraocular pressure information for doctors or researchers, so as to better carry out diagnosis and research. The integrated design provided in this application makes intraocular pressure measurement more intelligent, convenient and efficient.

[0055] In one embodiment, asFigure 2 As shown, the push member 130 further includes a limit block 132 , and the limit block 132 is used for the limit block 132 to abut against the limit card to prevent the movable component 100 from sliding axially beyond a threshold.

[0056] Specifically, the design of the push member 130 cleverly introduces a limit block 132, which is to provide an additional protection mechanism during the operation of the intraocular pressure measuring device. The function of the limit block 132 is that when the movable component 100 reaches a set threshold during axial sliding, it will interfere with the limit card, thereby effectively preventing further sliding. The purpose of this design is to prevent the movable component 100 from axially displacing beyond the specified range during the measurement process, thereby ensuring the accuracy and safety of intraocular pressure measurement. By introducing the limit block 132, the system can more reliably control the range of motion of the movable component 100 during operation, prevent potential errors or damage, and improve the reliability and stability of the intraocular pressure measuring device.

[0057] In one embodiment, Figure 3 As shown, the permanent magnet pair 220 includes a first permanent magnet and a second permanent magnet, wherein the polarity of the first permanent magnet facing the movable component 100 is opposite to the polarity of the second permanent magnet facing the movable component 100 , and the first permanent magnet and the second permanent magnet form a linear magnetic field at the fixed shaft 120 .

[0058] Specifically, the permanent magnet includes a first permanent magnet and a second permanent magnet, and their polarities are designed to be opposite to the movable component 100. Specifically, the polarity of the first permanent magnet is opposite to the polarity of the second permanent magnet, thereby forming a permanent magnetic field with opposite polarities. The advantage of this structure is that, at the position of the fixed axis 120, the first permanent magnet and the second permanent magnet generate a linear magnetic field. The linear magnetic field is used to work in conjunction with the magnetic field sensor 150, and plays a key role in the intraocular pressure measurement process, measuring the accurate movement distance of the movable component 100 relative to the fixed component 200. Through the unique design of the permanent magnet pair 220 provided in the present application, more accurate measurements can be achieved, and the performance and reliability of the intraocular pressure measurement device can be improved.

[0059] In one embodiment, Figure 6 As shown, the device provided by the present application further includes a power unit 250, and the power unit 250 is used to provide a thrust for the movable component 100 to slide along the axial direction.

[0060] Specifically, a power unit 250, such as a micro air pump, is installed at the end of the fixing assembly 200 of the intraocular pressure measuring device near one end of the push member 130. Figure 6As shown. The power unit 250 is stationary relative to the fixing bracket. Taking a micro gas pump as an example, when measuring and starting, the gas pump continuously pumps gas into the sleeve 240, increasing the air pressure in the space between the probe 110 and the pump, forcing the probe 110 to press against the eyelid. The solution provided in this application requires good airtightness between the probe 110 and the sleeve 240. The power unit 250 needs to provide power gently to avoid accidentally injuring the eyeball. After the acquisition system starts to work, the real-time pressure and distance are continuously transmitted to the application end to form a real-time distance-pressure curve, and the algorithm continuously makes judgments. When the collected data meets the requirements, the pressing ends, and the device releases the pressure or retracts the probe 110. Through the power provided by the power unit 250, the movable assembly 100 can slide axially, so as to realize effective measurement of the eyelid. Considering the physiological characteristics of the eyelid, it is ensured that the intraocular pressure can be monitored smoothly and accurately during the measurement process. By setting the power output of the power unit 250, it is ensured that the movable assembly 100 can move axially at an appropriate speed and force, ensuring the accuracy and repeatability of the measurement. The power unit 250 provided in this application not only improves the measurement efficiency, but also ensures the acquisition of measurement data of the intraocular pressure of the target object, providing a more reliable data basis for ophthalmologists or researchers.

[0061] In one embodiment, the fixing component 200 is fixedly connected with a sleeve 240; the sleeve 240 is sleeved and connected with the movable assembly 100; the power unit 250 includes a gas pump for delivering gas into the sealed space formed between the sleeve 240 and the pushing member 130.

[0062] Specifically, the design of the intraocular pressure measuring device includes a connection and power transmission mechanism. The fixing component 200 is fixedly connected to the sleeve 240, and the sleeve 240 is sleeved and connected with the movable assembly 100 to form a stable connection structure. In the structure provided in this application, the key component of the power unit 250 is a gas pump, which is used to deliver gas into the sealed space formed between the sleeve 240 and the pushing member 130. The beauty of this design is that by delivering gas through the gas pump, a stable thrust can be generated to promote the relative movement of the pushing member 130 and the movable assembly 100. The gas transmission mechanism of the sealed space provided in this application not only ensures the uniform distribution of the thrust, but also maintains the environmental closure during the pushing process. The integration of the sleeve 240, the gas pump and the sealed space design enables the intraocular pressure measuring device to provide controllable force during the measurement process to ensure accurate and safe intraocular pressure measurement operations.

[0063] In combination with the above various embodiments, through the axial sliding connection between the fixed component 200 and the movable component 100, and the guiding effect of the guiding groove 230, the stability and accuracy of the movable component 100 during the measurement process are ensured. Secondly, the design of the distributed pressure sensing array enables the pressure sensor 140 to uniformly collect the contact pressure data on the eyelid surface, improving the fineness and comprehensiveness of the measurement. The design of the guiding groove 230 also helps to keep the axes of the fixed component 200 and the movable component 100 coincident, further increasing the measurement accuracy. In addition, the introduction of the limiting block 132 and the limiting card 231 effectively limits the movement range of the movable component 100 during axial sliding, preventing the generation of errors. The integration of the data processing unit in the pushing member 130 enables more efficient real-time processing and transmission of data. The air pump design of the power unit 250 provides a controllable thrust for the movable component 100, making the measurement process safer and more controllable. These innovative designs cooperate with each other to provide a more accurate, reliable and safe solution for intraocular pressure measurement, and are expected to have significant practical applications and scientific value in the field of ophthalmic diagnosis and research.

[0064] In one embodiment, as Figure 7 shown, a method for measuring intraocular pressure is provided, including the following steps:

[0065] Step 702, when the initial measured pressure value of the eyelid of the target object is greater than the detection pressure threshold, obtain the initial measured magnetic induction intensity corresponding to the target object.

[0066] Among them, the target object can be a person or an animal that needs to measure intraocular pressure.

[0067] Among them, the initial measured pressure value can be the pressure value measured by the pressure sensor when starting to measure intraocular pressure. Before the intraocular pressure measurement device triggers the intraocular pressure measurement, the initial measured pressure value is less than or equal to the detection pressure threshold.

[0068] Among them, the detection pressure threshold can be used to detect whether the pressure measured by the pressure sensor meets the condition for starting the intraocular pressure measurement.

[0069] Among them, the initial measured magnetic induction intensity can be the magnetic induction intensity when starting to measure the intraocular pressure of the target object.

[0070] Specifically, pressure and distance need to be measured synchronously. Whether the target object presses by finger or automatically, when the movable component has not contacted the eyelid, the pressure value is zero or a low zero-drift value , and the distance measurement does not start at this time. When the movable component contacts the eyelid, the pressure value will start to increase, and through a detection threshold , when the initial measured pressure value of the eyelid of the target object is greater than the detection pressure threshold ( ), it can be considered that the probe is in contact with the eyelid, and the initial measured magnetic induction intensity corresponding to the current target object is recorded. , and this position is used as the zero point of the position.

[0071] Step 704: In response to the current measured pressure value of the eyelid of the target object, obtain the current measured magnetic induction intensity corresponding to the target object.

[0072] Among them, the current measured pressure value can be the pressure value measured by the pressure sensor during continuous intraocular pressure measurement.

[0073] Among them, the current measured magnetic induction intensity can be the magnetic induction intensity during continuous intraocular pressure measurement of the target object.

[0074] Specifically, the distributed pressure sensing array of the pressure sensor in the intraocular pressure measurement device is placed on the probe of the movable component and contacts the eyelid of the target object. When the eyelid of the target object is under pressure, the pressure sensor immediately collects and records the measured pressure value. At the same time, the magnetic field sensor set on the fixed axis senses the magnetic induction intensity of the movable component in the magnetic field generated by the permanent magnet pair. Through the collaborative work of these two sensors, when the intraocular pressure of the target object changes, the current measured pressure value of the eyelid can be obtained in real time, and the current measured magnetic induction intensity corresponding to the target object.

[0075] Step 706: Obtain the intraocular pressure measurement moving distance according to the current measured magnetic induction intensity and the initial measured magnetic induction intensity.

[0076] Among them, the intraocular pressure measurement moving distance can be the distance that the movable part moves during the process where the pressure sensor indicates that the intraocular pressure measurement has been performed.

[0077] Specifically, by monitoring the real-time magnetic induction intensity of the eyelid of the target object, combining with the initial measured magnetic induction intensity, using Figure 4 the relationship between the magnetic induction intensity and the distance as shown, calculate the intraocular pressure measurement moving distance. The magnetic induction intensity and the pressing distance of the process provided in this application have a mapping relationship, that is, the corresponding relationship between any magnetic induction intensity and the pressing distance. The pressing moving distance reflects the relative change of the intraocular pressure of the target object and provides a quantitative index for the dynamic change of the intraocular pressure.

[0078] Step 708: Calculate the intraocular pressure measurement value of the target object according to the intraocular pressure measurement moving distance.

[0079] Specifically, by monitoring the axial movement of the probe, the change in the moving distance is measured. Based on the pre-calibrated linear relationship of the magnetic induction intensity, the difference between the currently measured magnetic induction intensity and the initial measured magnetic induction intensity is converted into the moving distance for intraocular pressure measurement. Among them, the conversion process may involve mathematical operations such as difference calculation or linear interpolation. Using the obtained intraocular pressure measurement curve judgment algorithm, the calculation result of the intraocular pressure measurement moving distance is further analyzed and processed to obtain the intraocular pressure value of the target object.

[0080] In the above-mentioned intraocular pressure measurement method, when the initial measured pressure value of the eyelid of the target object is greater than the detection pressure threshold, the initial measured magnetic induction intensity corresponding to the target object is obtained; in response to the current measured pressure value of the eyelid of the target object, the current measured magnetic induction intensity corresponding to the target object is obtained; based on the current measured magnetic induction intensity and the initial measured magnetic induction intensity, the intraocular pressure measurement moving distance is obtained; and the intraocular pressure measurement value of the target object is calculated according to the intraocular pressure measurement moving distance.

[0081] By monitoring the initial measured pressure value of the eyelid, if it is greater than the detection pressure threshold, the initial measured magnetic induction intensity corresponding to the target object is obtained. Subsequently, in response to the current measured pressure value of the eyelid of the target object, the current measured magnetic induction intensity is obtained. By calculating the difference between the current measured magnetic induction intensity and the initial measured magnetic induction intensity, the moving distance of intraocular pressure measurement is obtained. Finally, using the calculation result of the moving distance, the specific calculation of intraocular pressure is carried out. The curve provided by this application not only provides intuitive and detailed intraocular pressure information for doctors or researchers, but also, through its characteristic parameters such as shape and slope, can be used to evaluate whether the intraocular pressure of the target object is abnormal. Therefore, this method is beneficial to providing more comprehensive and accurate intraocular pressure monitoring results, helping to detect abnormal intraocular pressure conditions early, and providing a powerful auxiliary tool for ophthalmic clinical diagnosis.

[0082] In one embodiment, as Figure 8 shown, obtaining the intraocular pressure measurement moving distance according to the current measured magnetic induction intensity and the initial measured magnetic induction intensity includes:

[0083] Step 802, calibrate the combined magnetic field corresponding to the first permanent magnet and the second permanent magnet to determine the linear relationship of the magnetic induction intensity.

[0084] Among them, the first permanent magnet and the second permanent magnet can be two permanent magnets with opposite magnetic poles, which are used to generate a current combined magnetic field.

[0085] Among them, the linear relationship of the magnetic induction intensity can be formed by the permanent magnet pair with the first permanent magnet and the second permanent magnet as a whole in the magnetic induction detector of the moving part, and the mathematical relationship in which the magnetic induction intensity and the pressing distance have a corresponding relationship.

[0086] Specifically, by placing magnetic induction sensors at known positions, the actual magnetic induction intensity values when the first permanent magnet and the second permanent magnet are combined are recorded. This process may require multiple measurements at different positions and distances to obtain a comprehensive and accurate data set. Subsequently, these actually measured magnetic induction intensity values are paired with the corresponding position and distance information to establish an experimental data set. Finally, through mathematical analysis, linear regression or other fitting algorithms may be used to determine the linear relationship of the combined magnetic field corresponding to the first permanent magnet and the second permanent magnet.

[0087] Step 804: Obtain the moving distance for intraocular pressure measurement based on the linear relationship of magnetic induction intensity, the currently measured magnetic induction intensity, and the initially measured magnetic induction intensity.

[0088] Specifically, whether the movable component approaches or moves away from the eyelid along the axis, the system will record the current magnetic field data in real time and convert it into the moving distance for intraocular pressure measurement. The formula for the moving distance for intraocular pressure measurement is as follows:

[0089]

[0090] where is Figure 4 the gradient (average) of the linear segment of the magnetic field, and the expression is as follows:

[0091]

[0092] For Hall sensors with a measurement range above 50 mT and a sensitivity in the order of μT (chips with side lengths of 1 - 3 mm), the measurement noise is in the order of μT, while the unexpected magnetic field fluctuations introduced by environmental magnetic fields (such as the geomagnetic field) due to factors like device movement and attitude change are at most in the order of 100 μT. Then, when the gradient of the linear segment of the magnetic field is in the order of 10 mT / mm, the distance error introduced by interference can be controlled within the order of 0.01 mm. This fully meets the accuracy requirements for distance measurement (< 0.1 mm). And to achieve such a gradient, only two cylindrical magnets with a diameter of 6 mm and a height of 3 mm and opposite polarities are needed, and the sensor can be placed several millimeters below them (such as < 10 mm), with a simple component and low cost.

[0093] In this embodiment, by calibrating the combined magnetic field corresponding to the first permanent magnet and the second permanent magnet, the linear relationship of the magnetic induction intensity can be determined, which provides an accurate benchmark for subsequent intraocular pressure measurement. The establishment of the linear relationship enables the intraocular pressure measurement device to accurately calculate the moving distance of the intraocular pressure measurement by monitoring the difference between the currently measured magnetic induction intensity and the initially measured magnetic induction intensity in real time. Through this process, high-precision monitoring of intraocular pressure changes is achieved, and the reliability of intraocular pressure measurement is improved. The establishment and application of the linear relationship provided by this application enable the intraocular pressure measurement device to more accurately capture the actual changes in intraocular pressure, providing more useful data support for ophthalmic clinical practice and research.

[0094] In one embodiment, the method further includes:

[0095] Generate an intraocular pressure measurement curve based on the initially measured pressure value, the currently measured pressure value, the currently measured magnetic induction intensity, and the initially measured magnetic induction intensity; the intraocular pressure measurement curve is used to evaluate whether the intraocular pressure of the target object is abnormal.

[0096] First, obtain the intraocular pressure measurement moving distance based on the currently measured magnetic induction intensity and the initially measured magnetic induction intensity.

[0097] Wherein, the intraocular pressure measurement moving distance can be the distance that the moving part moves during the process where the pressure sensor indicates that the intraocular pressure measurement has been performed.

[0098] By monitoring the real-time magnetic induction intensity of the eyelid of the target object and combining it with the initially measured magnetic induction intensity, using the relationship between the magnetic induction intensity and the distance as shown in Figure 4 , calculate the intraocular pressure measurement moving distance. There is a mapping relationship between the magnetic induction intensity and the pressing distance in this process, that is, the corresponding relationship between any magnetic induction intensity and the pressing distance. The pressing moving distance reflects the relative change of the intraocular pressure of the target object, providing a quantitative index for the dynamic change of the intraocular pressure.

[0099] Second, obtain the intraocular pressure measurement curve based on the currently measured pressure value and the intraocular pressure measurement moving distance.

[0100] Monitor the real-time pressure value of the eyelid of the target object to obtain the currently measured pressure value. Combine the intraocular pressure measurement moving distance and calculate the corresponding relationship between the two to obtain the intraocular pressure measurement curve. Mathematical interpolation, fitting and other algorithms, such as linear interpolation or polynomial fitting, can be used in this process to obtain the trend of the intraocular pressure measurement curve.

[0101] In one embodiment, as shown in Figure 9 , after the step of generating an intraocular pressure measurement curve based on the initially measured pressure value, the currently measured pressure value, the currently measured magnetic induction intensity, and the initially measured magnetic induction intensity, the method further includes:

[0102] Step 902, obtain an intraocular pressure measurement curve judgment algorithm.

[0103] Among them, the intraocular pressure measurement curve judgment algorithm can be an algorithm for judging whether the intraocular pressure of the target object is abnormal.

[0104] Specifically, obtain an intraocular pressure measurement curve judgment algorithm. Among them, when using the intraocular pressure measurement curve judgment algorithm for judgment, the distance and pressure are measured synchronously, and after simple data processing (such as filtering, etc.) and sent to the application end (acquisition system) together to form a distance-pressure curve ( ). Different intraocular pressures correspond to different curves as Figure 11 shown.

[0105] Step 904, input the intraocular pressure measurement curve into the intraocular pressure measurement curve judgment algorithm to obtain an intraocular pressure measurement value.

[0106] Among them, the intraocular pressure measurement value can be the intraocular pressure obtained by the target object for this measurement.

[0107] Specifically, input the intraocular pressure measurement curve into the intraocular pressure measurement curve judgment algorithm, and through the calculation of the intraocular pressure measurement curve judgment algorithm, obtain an intraocular pressure measurement value. Among them, when the intraocular pressure is high, the pressure value rises rapidly with the increase of the relative pressing distance; while when the intraocular pressure is low, the rise is relatively slow. The application end can record and send this data to the target object, or perform intraocular pressure judgment through the built-in algorithm for judging the intraocular pressure according to the intraocular pressure measurement curve. For example, in the early stage, a complex intraocular pressure device can be used for gold standard measurement, then the corresponding distance-pressure curve is collected, and finally an algorithm for judging the intraocular pressure value or level through curve information is trained. Of course, sensors such as temperature sensors can also be integrated on this device, and information such as temperature, time, age, and gender can be fused in the algorithm to increase the accuracy of intraocular pressure estimation from the perspective of increasing the information dimension.

[0108] In this embodiment, the intraocular pressure measurement curve judgment algorithm is obtained by training the algorithm to use a standard intraocular pressure curve. This means that the algorithm can learn and understand the characteristics of the normal intraocular pressure curve after being trained with the intraocular pressure measurement curve. Subsequently, when the actual intraocular pressure measurement curve is input into this algorithm, it can analyze this curve and output an intraocular pressure measurement value. The algorithm provided by this application, through training based on the standard curve, can distinguish the characteristics such as the shape and fluctuation of the intraocular pressure curve, thereby providing more accurate and reliable intraocular pressure measurement results. The intelligent intraocular pressure measurement curve judgment algorithm provided by this application helps to more accurately evaluate the intraocular pressure state in the field of ophthalmology, improving the efficiency and accuracy of ophthalmic clinical diagnosis.

[0109] In one embodiment, as Figure 10 shown, the method further includes:

[0110] Step 1002: In response to the automatic intraocular pressure measurement instruction of the target object, obtain the pre-pressed eyelid information corresponding to the target object.

[0111] Among them, the automatic intraocular pressure measurement instruction can be an instruction for multiple automatic intraocular pressure measurements within a certain period of time.

[0112] Among them, the pre-pressed eyelid information can be the information obtained by pressing the eyelids multiple times with low pressure first.

[0113] Specifically, in response to the automatic intraocular pressure measurement instruction of the target object, the system starts to perform automated intraocular pressure measurement for X hours, which can be executed periodically, such as once every 30 minutes. When executing, in order to improve the accuracy of intraocular pressure measurement, the eyelids are pre-pressed first, that is, the eyelids are pressed multiple times with low pressure (small pressing distance) and high frequency to obtain the pre-pressed eyelid information, and then the formal acquisition of the distance-pressure curve is started.

[0114] Step 1004: When the pre-pressed eyelid information indicates that the target object can perform intraocular pressure measurement normally, measure the intraocular pressure of the target object to obtain an intraocular pressure measurement curve.

[0115] Specifically, when the pre-pressed eyelid information indicates that the target object can perform intraocular pressure measurement normally, that is, after pressing the eyelids multiple times with low pressure (small pressing distance) and the feedback indicates that the intraocular pressure measurement can be performed normally, measure the intraocular pressure of the target object to obtain an intraocular pressure measurement curve.

[0116] Step 1006: When the intraocular pressure measurement time interval of the target object is satisfied and the current total intraocular pressure measurement time does not meet the preset total intraocular pressure measurement time, return to the step of measuring the intraocular pressure of the target object to obtain an intraocular pressure measurement curve.

[0117] Among them, the intraocular pressure measurement time interval can be the time interval between two intraocular pressure measurements in the mode of automatic intraocular pressure measurement.

[0118] Among them, the preset total intraocular pressure measurement time can be the total time length of automatic intraocular pressure measurement in the mode of automatic intraocular pressure measurement.

[0119] Specifically, when the intraocular pressure measurement time interval of the target object is satisfied and the current total intraocular pressure measurement time does not meet the preset total intraocular pressure measurement time, that is, the time interval between two automatic measurements is greater than or equal to the intraocular pressure measurement time interval of the target object, and at the same time, the current total intraocular pressure measurement time is less than or equal to the preset total intraocular pressure measurement time, then return to the step of "measuring the intraocular pressure of the target object to obtain an intraocular pressure measurement curve", and continue to measure the intraocular pressure of the target object until the current total intraocular pressure measurement time is greater than the preset total intraocular pressure measurement time, then trigger the stop of measurement.

[0120] In this embodiment, by responding to the automatic intraocular pressure measurement instruction of the target object, the system can obtain the pre-pressed eyelid information to verify whether the target object can perform intraocular pressure measurement normally. When the pre-pressed eyelid information indicates that the target object is suitable for measurement, the system performs intraocular pressure measurement to obtain an intraocular pressure measurement curve. The system provided by this application automatically performs intraocular pressure measurement on the premise of ensuring that the target object is suitable for measurement, providing convenient and fast services. In addition, when the preset measurement time interval and total time of the target object are met, the system will return to the intraocular pressure measurement step on time to ensure continuous monitoring of the intraocular pressure status of the target object. The automated intraocular pressure measurement process provided by this application not only improves the measurement efficiency, but also ensures the scientificity and accuracy of the measurement, providing beneficial support for ophthalmic clinical practice and research.

[0121] It should be understood that although the steps in the flowcharts involved in the above embodiments are shown in sequence according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least a part of other steps or steps in other steps.

[0122] Based on the same inventive concept, an embodiment of this application also provides an intraocular pressure measurement module for implementing the above-mentioned intraocular pressure measurement method. The solution provided by this module to solve the problem is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the intraocular pressure measurement module provided below can refer to the limitations on an intraocular pressure measurement method in the above text, and will not be repeated here.

[0123] In one embodiment, as Figure 12 shown, an intraocular pressure measurement module is provided, including: a first data acquisition module 1202, a second data acquisition module 1204, and an object intraocular pressure measurement module 1206, where:

[0124] The first data acquisition module 1202 is configured to obtain the initial measured magnetic induction intensity corresponding to the target object when the initial measured pressure value of the eyelid of the target object is greater than the detection pressure threshold;

[0125] The second data acquisition module 1204 is configured to obtain the current measured magnetic induction intensity corresponding to the target object in response to the current measured pressure value of the eyelid of the target object;

[0126] A moving distance measurement module 1206 is configured to obtain the moving distance for intraocular pressure measurement based on the currently measured magnetic induction intensity and the initially measured magnetic induction intensity.

[0127] An object intraocular pressure measurement module 1208 is configured to calculate the intraocular pressure measurement value of a target object according to the moving distance for intraocular pressure measurement.

[0128] In one embodiment, the moving distance measurement module 1206 is further configured to calibrate the combined magnetic field corresponding to the first permanent magnet and the second permanent magnet to determine the linear relationship of the magnetic induction intensity; and obtain the moving distance for intraocular pressure measurement according to the linear relationship of the magnetic induction intensity, the currently measured magnetic induction intensity, and the initially measured magnetic induction intensity.

[0129] In one embodiment, the object intraocular pressure measurement module 1208 is further configured to generate an intraocular pressure measurement curve according to the initially measured pressure value, the currently measured pressure value, the currently measured magnetic induction intensity, and the initially measured magnetic induction intensity; and the intraocular pressure measurement curve is used to evaluate whether the intraocular pressure of the target object is abnormal.

[0130] In one embodiment, the object intraocular pressure measurement module 1208 is further configured to obtain an intraocular pressure measurement curve judgment algorithm, which is trained by a standard intraocular pressure curve; and input the intraocular pressure measurement curve into the intraocular pressure measurement curve judgment algorithm to obtain the intraocular pressure measurement value.

[0131] In one embodiment, the object intraocular pressure measurement module 1208 is further configured to, in response to an automatic intraocular pressure measurement instruction of the target object, obtain pre-pressure eyelid information corresponding to the target object; when the pre-pressure eyelid information indicates that the target object can normally perform intraocular pressure measurement, measure the intraocular pressure of the target object to obtain an intraocular pressure measurement curve; and when the intraocular pressure measurement time interval of the target object is satisfied and the current total time of intraocular pressure measurement does not satisfy the preset total time of intraocular pressure measurement, return to the step of measuring the intraocular pressure of the target object to obtain an intraocular pressure measurement curve.

[0132] Each module in the above-mentioned intraocular pressure measurement module can be implemented in whole or in part by software, hardware, and their combination. The above-mentioned modules can be embedded in the processor of the computer device in the form of hardware or independent of it, or stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above-mentioned modules.

[0133] The present application further provides a wearable intraocular pressure monitoring system, which includes the above-mentioned intraocular pressure measurement device, and further includes an intraocular pressure measurement device fixing device; both sides of the intraocular pressure measurement device fixing device are fixedly connected with mounting plates, a groove is provided between the two fixing plates, and the groove is used to place the intraocular pressure measurement device, and a head-wearing rope is provided on the upper surface of the mounting plate.

[0134] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structural diagram may be as shown in Figure 13 . The computer device includes a processor, a memory, and a network interface connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store server data. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, it implements an intraocular pressure measurement method.

[0135] Those skilled in the art can understand that Figure 13 the structure shown in is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the computer device to which the solution of this application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different component layout.

[0136] In one embodiment, a computer device is further provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, the steps in the above method embodiments are implemented.

[0137] In one embodiment, a computer-readable storage medium is provided, storing a computer program. When the computer program is executed by the processor, the steps in the above method embodiments are implemented.

[0138] In one embodiment, a computer program product or a computer program is provided. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the steps in the above method embodiments.

[0139] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0140] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in the present application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in the present application can be general-purpose processors, central processors, graphics processors, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.

[0141] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0142] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An intraocular pressure measuring device, It is characterized in that The device comprises: A fixed component and a movable component, wherein the movable component is axially slidably connected with the fixed component; The movable assembly includes a probe, a fixed shaft and a push piece; a pressure sensor is arranged on a side of the probe away from the push piece, and a magnetic field sensor is arranged on an outer side wall of the fixed shaft; The fixing component is provided with a mounting groove arranged relative to the magnetic field sensor, and a permanent magnet pair is arranged in the mounting groove; The push member drives the probe to move axially via the fixed axis. When the probe moves axially so that the pressure sensor is pressed against the eyelid of the target object, the magnetic field sensor measures the moving distance of the movable component in the magnetic field generated by the permanent magnet pair, and calculates the intraocular pressure measurement value of the target object based on the intraocular pressure measurement moving distance.

2. The device according to claim 1, It is characterized in that The pressure sensor comprises a distributed pressure sensing array; The pressure sensing array includes a plurality of sensitive sensing units evenly spaced on the outer peripheral surface of the probe, and each of the sensitive sensing units is used to collect contact pressure data between the corresponding position area of ​​the outer peripheral surface of the probe where it is located and the eyelid.

3. The device according to claim 1, It is characterized in that The fixed component further comprises a guide groove, and the guide groove is slidably connected to the movable component; The guide groove is used to keep the axis center of the fixed component coincident with the axis center of the movable component when the movable component and the fixed component move relative to each other.

4. The device according to claim 3, It is characterized in that A limit card is also provided on the surface of the guide groove. The limit card is located between the probe and the push member. The limit card is used to limit the movement scale of the movable component in the fixed component.

5. The device according to claim 4, It is characterized in that The push member is provided with a cavity for accommodating a data processing unit; the data processing unit is respectively connected to the pressure sensor and the magnetic field sensor, and the data processing unit is used to connect to a terminal device.

6. The device according to claim 4, It is characterized in that The push member also includes a limit block, which is used for the limit block to contact the limit card to prevent the movable component from sliding axially beyond a threshold.

7. The device according to claim 2, It is characterized in that The permanent magnet pair includes a first permanent magnet and a second permanent magnet, wherein the polarity of the first permanent magnet facing the movable component is opposite to the polarity of the second permanent magnet facing the movable component, and the first permanent magnet and the second permanent magnet form a linear magnetic field at the fixed shaft.

8. The device according to any one of claims 1 to 7, It is characterized in that The device further comprises a power unit, which is used for providing a thrust for the movable component to slide in the axial direction.

9. The device according to claim 7, It is characterized in that The fixed component is fixedly connected with a sleeve; the sleeve is sleeve-connected with the movable component; The power unit includes an air pump for delivering gas into a sealed space formed between the sleeve and the pushing member.

10. An intraocular pressure measurement method, characterized in that, using the intraocular pressure measurement device according to any one of claims 1 to 9 for intraocular pressure measurement, the method comprising: when an initial measured pressure value of the eyelid of a target object is greater than a detection pressure threshold, obtaining an initial measured magnetic induction intensity corresponding to the target object; responding to a current measured pressure value of the eyelid of the target object, obtaining a current measured magnetic induction intensity corresponding to the target object; obtaining an intraocular pressure measurement moving distance according to the current measured magnetic induction intensity and the initial measured magnetic induction intensity; calculating an intraocular pressure measurement value of the target object according to the intraocular pressure measurement moving distance.

11. The method according to claim 10, characterized in that, the obtaining an intraocular pressure measurement moving distance according to the current measured magnetic induction intensity and the initial measured magnetic induction intensity includes: calibrating a combined magnetic field corresponding to a first permanent magnet and a second permanent magnet to determine a linear relationship of magnetic induction intensity; obtaining the intraocular pressure measurement moving distance according to the linear relationship of magnetic induction intensity, the current measured magnetic induction intensity and the initial measured magnetic induction intensity.

12. The method according to claim 10, characterized in that, the method further includes: generating an intraocular pressure measurement curve according to the initial measured pressure value, the current measured pressure value, the current measured magnetic induction intensity and the initial measured magnetic induction intensity; the intraocular pressure measurement curve is used to evaluate whether the intraocular pressure of the target object is abnormal.

13. The method according to claim 12, characterized in that, after the step of generating an intraocular pressure measurement curve according to the initial measured pressure value, the current measured pressure value, the current measured magnetic induction intensity and the initial measured magnetic induction intensity, the method further includes: obtaining an intraocular pressure measurement curve judgment algorithm, which is trained by a standard intraocular pressure curve; inputting the intraocular pressure measurement curve into the intraocular pressure measurement curve judgment algorithm to obtain the intraocular pressure measurement value.

14. The method according to any one of claims 10 to 13, characterized in that, the method further includes: responding to an automatic intraocular pressure measurement instruction of the target object, obtaining pre-pressed eyelid information corresponding to the target object; when the pre-pressed eyelid information indicates that the target object can normally perform intraocular pressure measurement, measuring the intraocular pressure of the target object to obtain the intraocular pressure measurement curve; when the intraocular pressure measurement time interval of the target object is satisfied and the current total intraocular pressure measurement time does not satisfy the preset total intraocular pressure measurement time, returning to the step of measuring the intraocular pressure of the target object to obtain the intraocular pressure measurement curve.

15. A wearable intraocular pressure monitoring system, characterized in that, including the intraocular pressure measurement device according to any one of claims 1 to 9.

16. A computer-readable storage medium, on which a computer program is stored, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 10 to 14.

17. A computer program product, comprising a computer program, wherein, when the computer program is executed by a processor, it implements the steps of the method according to any one of claims 10 to 14.

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