An intelligent monitoring contact lens system based on radio frequency wireless power supply and self-oxygen supply integration and a control method thereof

Abstract

This invention discloses an intelligent monitoring contact lens system and its control method based on the integration of radio frequency wireless power supply and self-oxygen supply, belonging to the technical field of intelligent contact lenses and flexible wearable devices. The system includes a self-oxygenating contact lens, a radio frequency energy harvester, a microcontroller, a biosensor array, and an antenna; the accompanying control software is deployed on a smart terminal to realize device management, energy scheduling, and data interaction. The radio frequency energy harvester is used to capture ambient radio frequency energy and power the intelligent contact lens; the antenna is used for bidirectional data transmission with the terminal; and the biosensor array collects biological information from the cornea and tears in real time. This invention significantly simplifies the contact lens structure by offloading complex control logic to the smart terminal software, which is beneficial for the integrated design of multifunctional modules, while improving the system's wearing safety and ease of use.

Description

Technical Field

[0001] This invention relates to the field of smart contact lenses and flexible wearable devices, and specifically to a smart monitoring contact lens system and its control method that integrates radio frequency energy harvesting and a biosensor array. Background Technology

[0002] The information disclosed in the background section of this invention is intended only to enhance the understanding of the overall background of this invention and should not be construed as an admission that such information constitutes prior art, nor does it constitute any form of prior art suggestion.

[0003] As a vital sensory organ, the eye contains abundant physical, chemical, and biological information on its surface and in its tears. Real-time monitoring of the corneal surface or tear composition can effectively assess an individual's physiological health. Smart contact lenses, by integrating multimodal sensors, can directly acquire key biomarker data from the tear film or ocular surface (see patent CN112603258A), including parameters such as intraocular pressure, blood oxygen saturation, body temperature, and blood glucose concentration, thereby enabling continuous monitoring of the wearer's health. Furthermore, as the primary window for visual information acquisition, smart contact lenses can also integrate miniature image sensing systems (see patents N108227239A, CN105467615A, CN110955063A) to enhance the wearer's visual perception and provide augmented reality information. As an innovative wearable medical device, smart contact lenses show broad application prospects in early diagnosis of ophthalmic diseases, clinical adjunctive treatment, augmented reality, and virtual reality.

[0004] The technological development of smart contact lenses mainly relies on advancements in micro-nano fabrication and flexible electronics, enabling high-density integration of complex electronic functional modules within a limited space (see CN118688980A). However, achieving multifunctional integration requires embedding various electronic devices such as sensor arrays, microprocessor chips, and wireless communication modules, significantly increasing the thickness and weight of the contact lenses, thus affecting wearing comfort and long-term biocompatibility. In traditional designs, structural units such as power modules, antenna units, sensor arrays, data reading circuits, and signal processors are arranged separately. Limited by the curved geometry of the contact lenses and the spatial constraints of the optical zone, this severely restricts functional expansion and system integration.

[0005] To overcome the aforementioned technical bottlenecks, the design of smart contact lenses needs to optimize the working mechanism and simplify the system architecture while ensuring biocompatibility and long-term stability. In existing technologies, physical energy conversion and chemical energy conversion methods (see CN118688980A, CN114253008A, CN107713998A) are used to directly obtain environmental energy or wirelessly transmit energy to the contact lenses, replacing traditional battery-powered solutions. This avoids frequent battery replacements or charging, improving wearing convenience and comfort. This simplified, integrated design strategy not only reduces mechanical interference to the ocular surface microenvironment but also minimizes potential biosafety risks. By optimizing component spatial layout and functional integration, smart contact lenses can maintain basic optical correction functions while expanding health monitoring and augmented reality capabilities.

[0006] As a Class III medical device, the design of smart contact lenses must maximize functionality while ensuring clinical safety and effectiveness. This requires comprehensive consideration during the design phase of material biocompatibility, long-term device stability, wearer's subjective comfort, and the long-term reliability and ease of maintenance of the device. This invention provides a smart monitoring contact lens system and its control method. The system uses a self-oxygenating contact lens as its functional matrix, maintaining corneal surface oxygen demand through a photocatalytic in-situ oxygen production mechanism. This avoids the obstruction of oxygen transmission channels caused by traditional electronic devices, preventing corneal hypoxia and related complications. Simultaneously, it employs a simplified architecture that separates radio frequency wireless power supply from terminal software control, effectively reducing the complexity of the lens structure and minimizing physical interference with the ocular surface environment and potential biosafety risks. This smart monitoring contact lens system is expected to achieve commercial clinical application, providing users with a safe and convenient non-invasive health monitoring solution. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide an intelligent monitoring contact lens system and its control method based on the integration of radio frequency wireless power supply and self-oxygen supply.

[0008] The aforementioned smart monitoring contact lens, based on integrated radio frequency wireless power supply and self-oxygenation, uses a self-oxygenating contact lens as its functional substrate, internally integrating a radio frequency energy harvesting module, a microcontroller, a biosensor array, and an antenna. The dense embedding of electronic components in traditional smart contact lenses significantly hinders oxygen penetration to the cornea, leading to corneal hypoxia and inducing inflammatory reactions and related ophthalmic diseases. This invention uses a self-oxygenating contact lens as a carrier, maintaining the physiological oxygen demand of the corneal surface through a photocatalytic in-situ oxygen production mechanism, thereby avoiding hypoxic corneal damage and improving wearing comfort and long-term wear safety.

[0009] The radio frequency energy harvesting module receives radio frequency energy emitted by the smart terminal device and converts it into electrical energy, providing wireless power to the various power-consuming modules in the smart monitoring contact lens. This solution replaces the traditional built-in battery power supply mode, eliminates battery replacement or charging operations, reduces the complexity of the lens structure, saves limited internal space, extends the continuous use cycle of the system, and improves ease of use.

[0010] The control software is deployed in a smart terminal device. By calling the native functional modules of the smart terminal device, such as radio frequency transmission, data transmission and reception, signal processing, and visualization display, it realizes energy transfer and information interaction with the smart monitoring contact lens. This distributed architecture moves complex control logic and data processing functions to the smart terminal, significantly simplifying the electronic structure of the lens and providing space for high-density integration and multi-functional expansion of the biosensor array, which is conducive to realizing simultaneous monitoring of multiple parameters.

[0011] To achieve the above objectives, the present invention adopts the following technical solution: an intelligent monitoring contact lens system based on radio frequency wireless power supply and self-oxygen supply integration, including a self-oxygen supply contact lens (11), a radio frequency energy harvester (12), a microcontroller (13), a biosensor array (14), an antenna (15), and control software (16). The control software (16) is deployed on the smart terminal device and realizes energy transmission and information interaction with the self-oxygenating contact lens body (11) through the radio frequency energy harvesting module (12) and the communication antenna (15). The radio frequency energy harvesting module (12) is used to receive radio frequency energy of a specific frequency band emitted by the smart terminal device and convert it into electrical energy to wirelessly power each power module in the self-oxygenating contact lens body (11). The antenna (15) is used for bidirectional communication and data transmission between the microcontroller (13) and the smart terminal device. The microcontroller (13) is used to receive control commands issued by the terminal control software (16) and adjust the biosensor array (14) to collect biological information of the cornea and / or tears. The collected data is transmitted back to the smart terminal device through the communication antenna (15) and the terminal control software (16) performs signal processing and visualization display.

[0012] Preferably, the self-oxygenating contact lens (11) has a photocatalytic electrode (11-2) embedded inside. The photocatalytic electrode (11-2) absorbs light energy and catalyzes the decomposition of water in a small amount of tear fluid to produce oxygen, thereby maintaining the physiological oxygen demand of the corneal surface, thus avoiding corneal hypoxia damage and related complications, and improving wearing comfort and long-term wearing safety.

[0013] The substrate (11-1) of the self-oxygenated contact lens is one or more combinations of hydrogel and silicone-based hydrogel, which can form an effective fit with the corneal surface and provide a structural carrier for the embedding of electronic devices.

[0014] Preferably, the center of the self-oxygenated contact lens (11-1) is the optical correction area, and the radio frequency energy harvester (12), microcontroller (13), biosensor array (14), antenna (15), etc. are all integrated and arranged in the outer periphery of the optical correction area to avoid obstructing the visual light path.

[0015] The radio frequency energy harvester (12) is an electromagnetic energy wireless charging device used to convert received radio frequency electromagnetic energy into electrical energy and wirelessly power each power module in the self-oxygenating contact lens body (11); the operating frequency band of the radio frequency energy harvesting module (12) is 200MHz to 10GHz. The use of the radio frequency energy harvesting module to replace the built-in battery effectively simplifies the lens structure.

[0016] More preferably, the operating frequency band of the radio frequency energy harvesting module (12) is 900 MHz, 1.8 GHz, 1.9 GHz or 2.1 GHz.

[0017] The microcontroller (13) receives control commands from the terminal control software (16) via the communication antenna (15) and adjusts the biosensor array (14) to collect biological information of the cornea and / or tears accordingly; the collected data is transmitted back to the smart terminal device via the communication antenna (15).

[0018] The biosensor array (14) includes at least one of electrochemical sensors, biochemical sensors, piezoelectric sensors, electromagnetic sensors and capacitive sensors, used to monitor at least one of the following biological information: blood glucose, lactic acid, intraocular pressure, tear osmotic pressure and corneal temperature.

[0019] The antenna (15) integrates one or more wireless communication interfaces to enable bidirectional communication and data transmission between the microcontroller (13) and the smart terminal device.

[0020] Preferably, the wireless communication interface of the antenna (15) is a WiFi communication interface or a Bluetooth communication interface.

[0021] The control software (16) is deployed on a smart terminal device, which is selected from at least one of a computer, a smartphone, and a smartwatch. The control software (16) controls the smart terminal device to transmit radio frequency energy and control command signals in a specific frequency band, and performs signal processing and visualization display on the received monitoring data.

[0022] The control method for the intelligent monitoring contact lens system based on radio frequency wireless power supply and self-oxygen supply integration includes the following steps:

[0023] S1. Wireless power supply steps: The control software (16) controls the smart terminal device to continuously emit radio frequency energy at a specific frequency; the radio frequency energy collection module (12) receives the radio frequency energy and converts it into electrical energy to power each power module in the self-oxygenated contact lens body (11);

[0024] S2. Command Issuance and Execution Steps: The control software (16) controls the smart terminal device to transmit a working command signal; the antenna (15) receives the working command and transmits it to the microcontroller (13); the microcontroller (13) parses the working command and triggers the biosensor array (14) to perform biological information collection.

[0025] S3. Data Acquisition and Transmission Steps: The biosensor array (14) acquires biological information of the cornea and / or tears to generate raw monitoring signals; the microcontroller (13) performs analog-to-digital conversion and preprocessing on the raw monitoring signals to generate monitoring data; the monitoring data is transmitted back to the smart terminal device via the antenna (15);

[0026] S4. Data processing and display steps: The control software (16) filters, calibrates and analyzes the monitoring data, and displays the processing results in a visual form on the smart terminal device.

[0027] Compared with the prior art, the present invention has the following beneficial technical effects:

[0028] 1. This invention uses a self-oxygenating contact lens as the functional substrate. It maintains the physiological oxygen demand of the corneal surface through a photocatalytic in-situ oxygen production mechanism, effectively avoiding the obstruction of oxygen transmission channels by embedded electronic devices, thereby preventing corneal hypoxia damage and related complications, and significantly improving wearing comfort and long-term wearing safety.

[0029] 2. This invention utilizes terminal control software to invoke the native functions of intelligent terminal devices, such as radio frequency transmission, data transmission and reception, and signal processing. This allows the energy delivery, information transmission, and data processing functions to be externalized to the intelligent terminal, effectively simplifying the electronic structure of the microscope, saving limited internal space, reducing the total power consumption of the system, and providing structural conditions for the high-density integration and multi-functional expansion of biosensor arrays.

[0030] 3. This invention employs a radio frequency wireless power supply and bidirectional communication mechanism to achieve non-contact energy transmission and data interaction between smart terminal devices and smart contact lenses. This solution has the characteristics of strong anti-electromagnetic interference capability and high data transmission accuracy. In addition, it adopts an intermittent communication mode, resulting in low system power consumption, low potential thermal damage risk to ocular surface tissues and other human tissues, and high biosafety.

[0031] 4. This invention adopts an active measurement mechanism and uses a microcontroller to control the biosensor array to achieve synchronous acquisition of multiple parameters. It can monitor multiple ocular physiological indicators such as blood glucose, lactate, intraocular pressure, tear osmotic pressure and corneal temperature in real time, meeting the needs of multi-dimensional health monitoring.

[0032] In summary, the intelligent monitoring contact lens system of the present invention can achieve a high degree of integration of multi-parameter synchronous monitoring functions while ensuring high biosafety and biocompatibility, providing wearers with a more convenient, comfortable and safe continuous health monitoring experience.

[0033] The above content is merely an overview of the technical solution of this application. To facilitate those skilled in the art to fully understand and implement the technical solution of this application, a detailed description is provided below in conjunction with the accompanying drawings and preferred embodiments. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of a smart monitoring contact lens system based on the integration of radio frequency wireless power supply and self-oxygen supply.

[0035] Figure 2 This is a disassembly diagram of an intelligent monitoring contact lens system based on integrated radio frequency wireless power supply and self-oxygen supply.

[0036] Figure 3 This is a schematic diagram of the control process of an intelligent monitoring contact lens system based on the integration of radio frequency wireless power supply and self-oxygen supply.

[0037] Figure 4 This is a schematic diagram of a smart monitoring contact lens system based on radio frequency wireless power supply and self-oxygen supply.

[0038] Figure 5 The voltage at the output terminal of the radio frequency energy harvester in an intelligent monitoring contact lens system that integrates radio frequency wireless power supply and self-oxygen supply is given.

[0039] Figure 6 A simulated blood glucose concentration monitoring graph for an intelligent monitoring contact lens system based on radio frequency wireless power supply and self-oxygen supply integration.

[0040] Figure 7 This is a real-time intraocular pressure monitoring image of an intelligent monitoring contact lens system that integrates radio frequency wireless power supply and self-oxygen supply.

[0041] Explanation of main component symbols

[0042] 10 Intelligent Monitoring Contact Lens System

[0043] 11 Self-oxygenated contact lenses

[0044] 11-1 The matrix of self-oxygen-supplying contact lenses

[0045] 11-2 Photocatalytic electrode for self-oxygen-supplying contact lenses

[0046] 12 Radio Frequency Energy Harvester

[0047] 13 Microcontrollers

[0048] 14 Biosensor Arrays

[0049] 14-1 Biosensor Array 1

[0050] 14-2 Biosensor Array 2

[0051] 14-3 Biosensor Array 3

[0052] 14-4 Biosensor Array 4

[0053] 15 antennas

[0054] 16 Control Software Detailed Implementation

[0055] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the technical principles of this invention and are not intended to limit the scope of protection of this invention.

[0056] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Please refer to the accompanying drawings and read the corresponding descriptions. In this specification and the drawings, substantially the same or equivalent constituent elements are referred to by the same reference numerals, and repeated descriptions thereof are omitted.

[0057] Figure 1 This is a schematic diagram of a smart monitoring contact lens system based on radio frequency wireless power supply and self-oxygenation integration according to an embodiment of the present invention. The smart contact lens detection system of the present invention includes a self-oxygenating contact lens (11), a radio frequency energy harvester (12), a microcontroller (13), a biosensor array (14), an antenna (15), and control software (16). The smart contact lens is based on a hydrogel or silicone-based hydrogel matrix. Figure 2The self-oxygenating contact lens (11) of 11-1 achieves effective adhesion to the surface of the eye, and the matrix material, oxygen permeability, etc. meet and exceed relevant requirements. The radio frequency energy harvester (12) receives radio frequency energy of a specific frequency band emitted by the smart terminal device and converts it into electrical energy to provide wireless power supply for each power module in the self-oxygenating contact lens body (11). The antenna (15) is used to realize bidirectional communication and data transmission between the microcontroller (13) and the smart terminal device. The biosensor array (14) collects biological information of the cornea and tears. The software (16) is deployed on the smart terminal device and realizes energy transmission and information interaction with the self-oxygenating contact lens body (11) through the radio frequency energy harvesting module (12) and the communication antenna (15). The radio frequency energy harvester (12), microcontroller (13), biosensor array (14), and antenna (15) are all integrated in the outer periphery of the optical area of ​​the self-oxygenating contact lens body (11) to avoid obstructing the visual light path. The central area of ​​the smart contact lens is the optical correction zone, and its effective diameter matches the wearer's pupil diameter. This distributed architecture offloads complex control functions to a smart terminal, effectively reducing the complexity of the lens structure and minimizing physical interference with the ocular surface microenvironment and potential biosafety risks.

[0058] Figure 2 This is a disassembly diagram of an intelligent monitoring contact lens system based on radio frequency wireless power supply and self-oxygenation integration according to an embodiment of the present invention. The carrier of the intelligent contact lens detection system of the present invention is a self-oxygenating contact lens (11). The matrix material (11-1) of the self-oxygenating contact lens (11) is one or more combinations of hydrogel and silicon-based hydrogel, and a photocatalytic electrode material (11-2) is embedded therein, which absorbs light to decompose trace amounts of water to supply oxygen to the cornea. This avoids the embedded device from hindering oxygen permeation, which could lead to corneal inflammation and ophthalmic diseases caused by hypoxia, and improves wearing comfort and long-term wearing safety. The intelligent monitoring contact lens has a simple structure, saves space, has low total power, and is easy to integrate into multiple functions of the intelligent monitoring contact lens. The biosensor array (14) includes at least one of electrochemical sensors, biochemical sensors, piezoelectric sensors, electromagnetic sensors, and capacitive sensors, used to monitor at least one of the following biological information: blood glucose, lactic acid, intraocular pressure, tear osmotic pressure, and corneal temperature. Figure 2 As shown, the biosensor array (14) can be composed of multiple sensor units (reference numerals 14-1, 14-2, 14-3, 14-4), and can realize real-time monitoring of multiple physiological indicators of the eye through multi-parameter synchronous acquisition.

[0059] Figure 3This is a schematic diagram of the control flow of the intelligent monitoring contact lens system based on radio frequency wireless power supply and self-oxygen supply integration of the present invention. In use, the wearer initiates the monitoring operation through an intelligent terminal device (such as a computer, smartphone, or smartwatch). The terminal control software (16) first calls the radio frequency transmission module of the intelligent terminal device to continuously transmit radio frequency energy at a specific frequency; the radio frequency energy collection module (12) receives and converts the radio frequency energy into electrical energy, providing intermittent wireless power supply to each power-consuming module in the self-oxygen supply contact lens body (11). Subsequently, the terminal control software (16) transmits a working command signal through the intelligent terminal device; the communication antenna (15) receives the working command and transmits it to the microcontroller (13), which parses the working command and activates the biosensor array (14). After the biosensor array (14) performs biological information acquisition, it transmits the original monitoring signal to the microcontroller (13) for analog-to-digital conversion and preprocessing. The obtained monitoring data is transmitted back to the smart terminal device via the communication antenna (15), and the terminal control software (16) performs filtering, calibration and analysis processing. Finally, the processing results are displayed on the smart terminal device in a visual form.

[0060] The self-oxygenated contact lens body (11) can be equipped with multiple sensor units (14-1, 14-2, 14-3, 14-4) to achieve real-time monitoring of multiple physiological indicators such as intraocular pressure, corneal temperature and blood glucose concentration through multi-parameter synchronous acquisition.

[0061] In addition, the terminal control software (16) can also construct a personalized medical prediction model for users based on the user's monitoring data and supplementary physiological reference data (including but not limited to gender, height, weight, baseline blood glucose value, baseline intraocular pressure value and corneal curvature parameters, etc.) to improve measurement accuracy and provide threshold warnings for abnormal physiological indicators (such as temperature, blood glucose, intraocular pressure, etc.).

[0062] To achieve continuous operation of the intelligent monitoring contact lens system and eliminate the need for internal battery replacement, this invention employs a radio frequency (RF) wireless power supply scheme. The RF energy harvesting module (12) operates in the frequency band of 200 MHz to 10 GHz. Compared to near-field power supply methods such as electromagnetic induction coupling charging and electric field coupling charging, RF wireless power supply can achieve long-distance energy transmission without requiring the intelligent terminal device to maintain a close relative position with the self-oxygenating contact lens body (11).

[0063] Preferably, the operating frequency band of the radio frequency energy harvesting module (12) is 900 MHz, 1.8 GHz, 1.9 GHz or 2.1 GHz, which is different from the communication frequency band of the communication antenna (15) in order to avoid electromagnetic interference between energy transmission and data communication.

[0064] Example verification: Figure 4 A schematic diagram of a smart monitoring contact lens system integrating radio frequency wireless power supply and self-oxygen supply, using a smartphone as the smart terminal, is shown, along with a schematic diagram of the relative relationship between the smartphone, the smart monitoring glasses, and the human eye. The smartphone is used as the radio frequency energy source, with a transmission frequency of 1.8 GHz and a transmission power of approximately 20 dBm; the radio frequency energy harvesting module (12) is positioned 20 cm away from the smartphone. Actual measurements using a vector network analyzer show that the output voltage of the rectifier circuit within the radio frequency energy harvesting module (12) can reach 220 mV (see [reference]). Figure 5 With an overall power consumption of 200 μW, the intelligent monitoring contact lens system can sustain continuous operation for approximately 12 seconds after 5 minutes of continuous energy harvesting.

[0065] Figure 6 The image shows the simulated blood glucose concentration monitoring results of the intelligent monitoring contact lens system based on radio frequency wireless power supply and self-oxygenation integration. The biosensor array (14) is configured as a blood glucose monitoring sensor unit, and the self-oxygenated contact lens body (11) is placed in a simulated tear environment (initially a blank control, without glucose). Glucose is added in a gradient to make the blood glucose concentration of the simulated tear reach a preset target value, and the intelligent monitoring contact lens system performs real-time monitoring. The communication antenna (15) transmits data in the 2.4 GHz band, which is distinguished from the operating band of the radio frequency energy harvesting module (12) to avoid electromagnetic interference between energy transmission and data communication. The terminal control software (16) filters, calibrates, and analyzes the received monitoring data and displays the processing results in a visual form.

[0066] Depend on Figure 6 The simulation test results show that the blood glucose monitoring sensor unit has high sensitivity, and the normal physiological blood glucose concentration range (3.9~6.1 mmol / L) is completely within its linear test range. Since the microcontroller (13) only performs the acquisition and transmission of the original monitoring signal, the data processing load is small, and the monitoring results can be obtained in real time. At the same time, the data processing algorithm of the terminal control software (16) ensures high monitoring accuracy, and the test range is not limited by the storage capacity of the endoscope. This scheme is a non-invasive monitoring method that can effectively avoid the traumatic pain caused by traditional finger-prick blood sampling and supports continuous dynamic monitoring of blood glucose levels.

[0067] Figure 7This is a real-time intraocular pressure monitoring result diagram of an intelligent monitoring contact lens system based on radio frequency wireless power supply and self-oxygenation integration. The biosensor array (14) is configured as an intraocular pressure monitoring sensor unit. After the wearer puts on the self-oxygenated contact lens body (11), the terminal control software (16) sets a timed monitoring program. The intraocular pressure monitoring sensor unit collects intraocular pressure data at preset time intervals and transmits it back to the intelligent terminal device (such as a smartphone) in real time via the communication antenna (15). The terminal control software (16) performs signal processing and visualization display on the transmitted data.

[0068] In this embodiment, the microcontroller (13) inside the self-oxygenated contact lens body (11) only performs analog-to-digital conversion and transmission of the original monitoring signal, without performing data transformation or complex algorithm processing; all data processing operations are completed by the terminal control software (16) of the smart terminal device. This distributed architecture effectively reduces the number of electronic components inside the lens, saves limited internal lens space, and reduces the overall power consumption of the system. The terminal control software (16) stores the user's intraocular pressure monitoring data locally and establishes a dynamic curve of intraocular pressure change (see...). Figure 6 The system supports real-time display and historical data review. The normal intraocular pressure range is 10~20 mmHg, and the general physiological intraocular pressure is 16 ± 2.5 mmHg. The terminal control software (16) uses a weighted average algorithm to denoise the original monitoring data to reduce the interference of factors such as blinking, corneal thickness differences, wearing position deviation, and external environmental fluctuations on the monitoring results, thereby improving the monitoring accuracy. In addition, the terminal control software (16) can also construct a personalized eye health prediction model for users based on their intraocular pressure monitoring data and supplementary physiological reference data (such as gender, height, weight, etc.) to further improve the accuracy of dynamic intraocular pressure monitoring, and automatically trigger an early warning when the intraocular pressure exceeds a preset threshold.

[0069] In summary, the technical content and features of this invention have been described above. Those skilled in the art, based on the teachings and disclosures of this invention, may make various substitutions and modifications that do not depart from the spirit of this invention. Therefore, the scope of protection of this invention should not be limited to the content disclosed in the above embodiments, but should include various substitutions and modifications that do not depart from the spirit of this invention, and the scope of protection of the appended claims shall prevail.

Claims

1. A smart monitoring contact lens system based on radio frequency wireless power supply and self-oxygen supply integration, characterized in that: The system includes a self-oxygenating contact lens (11), a radio frequency energy harvester (12), a microcontroller (13), a biosensor array (14), an antenna (15), and terminal control software (16). The terminal control software (16) is deployed on a smart terminal device and enables energy transmission and information interaction with the smart monitoring contact lens through the radio frequency energy harvester (12) and the antenna (15). The radio frequency energy harvester (12) is used to receive radio frequency energy of a specific frequency band emitted by the smart terminal device and convert it into electrical energy to provide wireless power to the self-oxygenating contact lens body (11). The antenna (15) is used for bidirectional communication and data transmission between the microcontroller (13) and the smart terminal device. After receiving instructions, the microcontroller (13) regulates the biosensor array (14) to collect biological information of the cornea or tears, transmits it back to the smart terminal device, and then the control software (16) processes and visualizes it on the smart terminal device.

2. The intelligent monitoring contact lens system according to claim 1, characterized in that: The matrix material of the self-oxygenating contact lens (11) is one or more combinations of hydrogel and silicone hydrogel, and a photocatalytic electrode material is embedded inside it; the photocatalytic electrode material absorbs light energy and catalytically decomposes water molecules in a small amount of tear fluid to produce oxygen, thus supplying oxygen to the cornea.

3. The intelligent monitoring contact lens system according to claim 1, characterized in that: The radio frequency energy harvester (12), microcontroller (13), biosensor array (14), and antenna (15) are all integrated and arranged in the peripheral area of ​​the optical correction zone of the self-oxygenated contact lens, and the terminal control software (16) is deployed in the smart terminal device.

4. The intelligent monitoring contact lens system according to claim 1, characterized in that: The radio frequency energy harvester (12) is an electromagnetically coupled wireless charging device with a working frequency band of 200 MHz to 10 GHz. It is used to convert the received radio frequency electromagnetic energy into electrical energy to provide wireless power to the power module in the smart monitoring contact lens.

5. The intelligent monitoring contact lens system according to claim 1, characterized in that: The microcontroller (13) receives the instruction received by the antenna (15) and accordingly controls the biosensor array (14) to collect biological information of the cornea or tears, and transmits the data back to the smart terminal device through the antenna (15).

6. The intelligent monitoring contact lens system according to claim 1, characterized in that: The biosensor array (14) includes at least one of electrochemical sensors, biochemical sensors, piezoelectric sensors, electromagnetic sensors or capacitive sensors; each sensor is used to monitor at least one of the following biological information: blood glucose, lactic acid, intraocular pressure, tear osmotic pressure and corneal temperature.

7. The intelligent monitoring contact lens system according to claim 1, characterized in that: The antenna (15) integrates one or more wireless communication interfaces to enable bidirectional communication and data transmission between the microcontroller (13) and the smart terminal device.

8. The intelligent monitoring contact lens system according to claim 1, characterized in that: The terminal control software (16) is deployed on a smart terminal device, which is selected from at least one of a computer, a smartphone, and a smartwatch. The terminal control software (16) is configured to control the smart terminal device to transmit radio frequency energy and control command signals in a specific frequency band, and to perform signal processing and visualization display on the received monitoring data.

9. The control method for intelligent monitoring contact lenses according to claim 1, characterized in that, Includes the following steps: S1. Wireless power supply steps: The terminal control software (16) controls the smart terminal device to continuously transmit radio frequency energy at a specific frequency; the radio frequency energy collection module (12) receives and converts the radio frequency energy into electrical energy to power each power module in the self-oxygenated contact lens body (11); S2. Command Issuance and Execution Steps: The terminal control software (16) controls the smart terminal device to transmit working command signals; the communication antenna (15) receives the working command and transmits it to the microcontroller (13); the microcontroller (13) parses the working command and triggers the biosensor array (14) to perform biological information collection. S3. Data Acquisition and Transmission Steps: The biosensor array (14) acquires biological information of the cornea and / or tears to generate raw monitoring signals; the microcontroller (13) performs analog-to-digital conversion and preprocessing on the raw monitoring signals to generate monitoring data; the monitoring data is transmitted back to the smart terminal device via the communication antenna (15); S4. Data processing and display steps: The terminal control software (16) filters, calibrates and analyzes the monitoring data, and displays the processing results in a visual form on the smart terminal device.

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