A metamaterial-based medical monitoring terminal antenna signal enhancement protective shell

Abstract

The application belongs to the technical field of wireless communication, and particularly relates to a medical monitoring terminal antenna signal enhancement protective shell based on metamaterials, which comprises a protective shell body, a miniature energy module is arranged in the protective shell body, a metamaterial antenna enhancement unit is arranged in an array in the protective shell body, the metamaterial antenna enhancement unit is an artificial microstructure, the artificial microstructure is an open resonant ring, a frequency tuning module is arranged in the protective shell body, and the frequency tuning module is used for adjusting the resonant frequency of the metamaterial antenna enhancement unit. The application is plug and play, does not need to be modified, is realized in the form of a protective shell, and can be used by being sleeved on an original medical monitoring terminal, does not involve any physical or software modification of expensive medical equipment, and avoids the risk and cost of re-performing medical certification.

Description

Technical Field

[0001] This invention belongs to the field of wireless communication technology, specifically referring to a protective shell for enhancing antenna signals in a medical monitoring terminal based on metamaterials. Background Technology

[0002] With the rapid development of mobile healthcare, FDA-approved smart medical devices such as portable electrocardiogram monitors, blood glucose meters, and remote vital signs monitoring terminals have been widely used in hospitals and daily health management. These devices typically transmit key physiological data collected in real time to a central monitoring station or cloud server via built-in wireless communication modules (such as 4G / 5G, Wi-Fi, and Bluetooth) for analysis by medical staff.

[0003] However, in real-world clinical settings (especially hospitals), the wireless communication performance of these FDA terminals faces significant challenges: Severe signal attenuation: Hospital buildings have complex structures, thick walls, and often use metal shielding materials, resulting in significant loss of wireless signal penetration.

[0004] The electromagnetic environment is complex: a large number of medical equipment (such as MRI, CT, and X-ray machines) and non-medical equipment operate simultaneously in the hospital, generating wide-band, high-intensity electromagnetic interference, which seriously degrades the signal-to-noise ratio of communication.

[0005] Device design limitations: Due to considerations of portability, power consumption, and industrial design, FDA-approved devices typically have small-sized and limited-power built-in antennas, which further limits their signal coverage and reception sensitivity.

[0006] The aforementioned factors collectively lead to frequent occurrences of weak signals, unstable data transmission, and even connection interruptions in existing FDA terminals during use. This not only affects the real-time nature and continuity of monitoring but may also delay clinical diagnosis due to data loss, posing potential medical risks.

[0007] Currently, the solutions to such problems are mostly to optimize network infrastructure (such as adding indoor distribution systems) or modify terminal hardware design. The former is costly and inconvenient to deploy, while the latter involves a complex device re-certification process, which is time-consuming and expensive. Summary of the Invention

[0008] To address the aforementioned problems, this invention proposes a protective shell for enhancing antenna signals in a medical monitoring terminal based on metamaterials.

[0009] The technical solution adopted by the present invention is as follows: The present invention provides a protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials, including a protective shell body, a micro energy module disposed within the protective shell body, and an array of metamaterial antenna enhancement units disposed within the protective shell body, wherein the metamaterial antenna enhancement units are artificial microstructures.

[0010] Furthermore, the artificial microstructure is an open-ended resonant ring.

[0011] Furthermore, a frequency tuning module is provided within the protective shell body. The frequency tuning module is a C-shaped array of electromagnetic metamaterials, and the frequency tuning module is used to adjust the resonant frequency of the metamaterial antenna enhancement unit.

[0012] Furthermore, the micro energy module is a rechargeable lithium battery.

[0013] Furthermore, an LED indicator light is provided on the protective shell body.

[0014] Furthermore, an electromagnetic compatibility shielding layer is provided on one side of the metamaterial antenna enhancement unit, and one side of the electromagnetic compatibility shielding layer is connected to a medical monitoring terminal.

[0015] Furthermore, the metamaterial antenna enhancement unit is used to enhance the wireless communication signal of the built-in antenna of the medical monitoring terminal.

[0016] Furthermore, the operating frequency band of the metamaterial antenna enhancement unit corresponds to the wireless communication frequency band of the medical monitoring terminal.

[0017] Furthermore, the material of the protective shell body is one of medical-grade silicone, polycarbonate, or composite plastic.

[0018] Furthermore, the metamaterial antenna enhancement unit integrates a signal amplification circuit.

[0019] The beneficial effects achieved by the present invention using the above structure are as follows: (1) It is plug-and-play and requires no modification. It is implemented in the form of a protective case. Users only need to put it on the original medical monitoring terminal to use it. It does not involve any physical or software modifications to expensive medical equipment, thus avoiding the risks and costs of recertification.

[0020] (2) Significant signal enhancement effect: By utilizing the unique electromagnetic wave modulation capability of the metamaterial antenna enhancement unit, it can effectively focus the signal and suppress interference. In a typical hospital complex environment, it can increase the terminal received signal strength by more than 10dB, greatly reducing the communication disconnection rate.

[0021] (3) Highly targeted and efficient: The metamaterial antenna enhancement unit can be customized according to the original antenna position and specific operating frequency band of the terminal, with high energy utilization efficiency, avoiding the self-excitation and noise amplification problems caused by traditional repeaters.

[0022] (4) Simple structure and low cost: The protective shell body is a protective shell integrated with special material layers, which is easy to mass-produce and the cost is far lower than that of modifying hospital infrastructure or the terminal itself.

[0023] (5) Ensure medical safety: By carefully designing EMC characteristics, it is ensured that it only enhances the target communication signal without affecting the accuracy and safety of the FDA terminal itself in measuring bioelectrical signals (such as ECG and EEG measurements). Attached Figure Description

[0024] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a protective shell structure for enhancing antenna signals in a medical monitoring terminal based on metamaterials according to the present invention; Figure 2 This is a schematic diagram of the antenna pattern for the protective casing.

[0026] The components include: 1. Protective shell body; 2. Open resonant ring; 3. Miniature energy module; 4. Frequency tuning module; 5. Electromagnetic compatibility shielding layer; and 6. LED indicator light. Detailed Implementation

[0027] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0028] Example 1 like Figures 1-2 As shown, the present invention proposes a protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials, including a protective shell body 1, which matches the shape of the target medical monitoring terminal. The protective shell body 1 has reserved necessary interface holes, button holes and screen openings. A micro energy module 3 is set inside the protective shell body 1. Metamaterial antenna enhancement units are arrayed inside the protective shell body 1. The metamaterial antenna enhancement units are artificial microstructures.

[0029] The artificial microstructure is an open-ended resonant ring 2. The open-ended resonant ring 2 has negative refractive index, anomalous transmission, or electromagnetic wave focusing characteristics within the target operating frequency band, thereby enhancing the directivity of the antenna and improving its radiation efficiency. The metamaterial antenna enhancement unit itself does not require power supply. As a highly efficient "electromagnetic lens" or "signal collector," it focuses the dispersed and weak electromagnetic waves in space to the location of the built-in antenna of the medical monitoring terminal, while radiating the electromagnetic waves emitted by the terminal more directionally, thereby effectively enhancing the antenna gain.

[0030] The protective shell body 1 is equipped with a frequency tuning module 4. The frequency tuning module 4 is an electromagnetic metamaterial with a C-shaped array, or it can be other forms of open resonant ring metamaterial. The frequency tuning module 4 is used to adjust the resonant frequency of the metamaterial antenna enhancement unit.

[0031] The micro energy module 3 is a rechargeable lithium battery.

[0032] An LED indicator 6 is provided on the protective case body 1 to show whether the device is in working condition or has a power status.

[0033] An electromagnetic compatibility shielding layer 5 is provided on one side of the metamaterial antenna enhancement unit, and a medical monitoring terminal is connected to one side of the electromagnetic compatibility shielding layer 5. The electromagnetic compatibility shielding layer 5 is made of copper metal.

[0034] Metamaterial antenna enhancement units are used to enhance the wireless communication signals of the built-in antennas in medical monitoring terminals.

[0035] The operating frequency band of the metamaterial antenna enhancement unit corresponds to the wireless communication frequency band of the medical monitoring terminal.

[0036] The protective case body 1 is made of medical-grade silicone.

[0037] The metamaterial antenna enhancement unit integrates a signal amplification circuit. The metamaterial antenna enhancement unit is responsible for efficiently collecting space signals, which are then initially amplified by the signal amplification circuit with low noise before being coupled to the medical monitoring terminal antenna. The transmission path is the opposite, and this mode can provide a higher signal enhancement factor.

[0038] In practical use, the protective shell body 1 is made of medical-grade silicone. On its inner side, corresponding to the built-in antenna area of ​​the monitor (usually located on the top or back of the device), a metamaterial antenna enhancement unit is embedded. This layer is printed on a thin polyimide film, and its artificial microstructure is an array of open resonant rings 2 with a dual-band design, precisely tuned to the 4G LTE Band 5 used by the monitor and the 2.4GHz frequency band of the hospital Wi-Fi. The metamaterial antenna enhancement unit is fixed to the inner wall of the protective shell body 1 by adhesive bonding and directly contacts the back cover of the medical monitoring terminal. The device does not require power. After installation, actual tests in the ICU ward showed that the signal reception strength increased by an average of 3dB and the data packet retransmission rate decreased by 80%. The above is the overall workflow of this invention. This step can be repeated for the next use.

[0039] Example 2 The difference between this embodiment and Embodiment 1 is that the material of the protective shell body 1 is polycarbonate.

[0040] Example 3 The difference between this embodiment and Embodiment 1 is that the material of the protective shell body 1 is composite plastic.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A protective shell for enhancing antenna signals in a medical monitoring terminal based on metamaterials, characterized in that: It includes a protective shell body (1), a micro energy module (3) is provided inside the protective shell body (1), and a metamaterial antenna enhancement unit is arrayed inside the protective shell body (1), the metamaterial antenna enhancement unit being an artificial microstructure.

2. The protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials according to claim 1, characterized in that: The artificial microstructure is an open-ended resonant ring (2).

3. The protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials according to claim 1, characterized in that: The protective shell body (1) is provided with a frequency tuning module (4), which is an electromagnetic metamaterial of C-shaped array. The frequency tuning module (4) is used to adjust the resonant frequency of the metamaterial antenna enhancement unit.

4. The protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials according to claim 1, characterized in that: The micro energy module (3) is a rechargeable lithium battery.

5. The protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials according to claim 1, characterized in that: An LED indicator (6) is provided on the protective shell body (1).

6. The protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials according to claim 1, characterized in that: An electromagnetic compatibility shielding layer (5) is provided on one side of the metamaterial antenna enhancement unit, and a medical monitoring terminal is connected to one side of the electromagnetic compatibility shielding layer (5).

7. The protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials according to claim 1, characterized in that: The metamaterial antenna enhancement unit is used to enhance the wireless communication signal of the built-in antenna of the medical monitoring terminal.

8. The protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials according to claim 1, characterized in that: The operating frequency band of the metamaterial antenna enhancement unit corresponds to the wireless communication frequency band of the medical monitoring terminal.

9. The protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials according to claim 1, characterized in that: The material of 1 is one of medical silicone, polycarbonate or composite plastic.

10. The protective shell for enhancing antenna signals of a medical monitoring terminal based on metamaterials according to claim 1, characterized in that: The metamaterial antenna enhancement unit integrates a signal amplification circuit.

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