A wired-wireless dual-mode switching connection intracranial pressure monitoring system and monitoring method

Abstract

This application discloses a wired-to-wireless dual-mode switching intracranial pressure monitoring system and method, belonging to the field of medical monitoring equipment. It includes an intracranial pressure monitoring probe for collecting intracranial pressure data and converting it into electrical signals; a data buffer module for temporarily storing data during mode switching; a dual-mode switching module for intelligent switching between wired and wireless connection modes; a medical shielded cable for data transmission in wired mode; a wireless communication module for data transmission in wireless mode; a monitor host for receiving and processing data; and a power management module for managing system power supply and charging the built-in battery in wired mode. The dual-mode switching module can respond to manual commands or automatically detect conditions such as electromagnetic interference, cable status, and battery level to trigger mode switching. This system can automatically select the optimal connection method according to environmental conditions, ensuring the continuity and reliability of intracranial pressure monitoring, and is suitable for medical scenarios such as neurosurgical intensive care.

Description

Technical Field

[0001] This application relates to a wired-wireless dual-mode switching intracranial pressure monitoring system and method, belonging to the field of medical monitoring equipment technology. Background Technology

[0002] Intracranial pressure monitoring is an important diagnostic and treatment tool in neurosurgery and critical care medicine, used to monitor changes in intracranial pressure in patients in real time, providing crucial data support for clinical diagnosis and treatment. Traditional intracranial pressure monitoring systems mainly use wired connections, collecting intracranial pressure data through implanted probes and transmitting the signals to the monitor's main unit for processing and display via medical-grade cables.

[0003] With the development of medical technology, wireless intracranial pressure monitoring systems have gradually emerged. Chinese patent CN104352232A discloses an intracranial pressure monitoring system, including a probe, a wireless transceiver connected to the probe, and a terminal system for wireless communication with the transceiver. It transmits intracranial pressure data wirelessly, effectively avoiding probe pulling problems caused by patient movement. Chinese patent CN118924274A further proposes an intracranial pressure data display system, employing an implantable intracranial pressure monitoring sensor and an external monitor. Data transmission is achieved through a wireless communication module, reducing safety hazards and improving the real-time performance of data transmission. Chinese patent CN105520728A discloses an intracranial pressure monitoring system using an internet platform, enabling medical staff to wirelessly monitor patients' intracranial pressure and establishing a remote monitoring and management system.

[0004] In recent years, dual-mode medical monitoring devices have begun to attract attention. Chinese patents CN118749929A ​​and CN222870506U disclose a universal dual-mode adapter kit and a medical monitor that can operate in both wired and wireless modes. In wired mode, the probe communicates with the conversion-adapter module via a wired connection, while in wireless mode, the probe interfaces with a wireless digital transmission module to form a communication connection.

[0005] However, existing intracranial pressure monitoring systems still have significant technical shortcomings. For wired systems, medical cables are prone to accidental disconnection or displacement of the probe due to patient movement or medical procedures, increasing the risk of cerebrospinal fluid leakage and wound infection. Simultaneously, wired connections restrict patient freedom of movement, causing inconvenience in mobile monitoring scenarios such as intra-hospital transport, affecting patient rehabilitation and comfort. For wireless systems, in environments with strong electromagnetic interference, such as operating rooms, ICUs, CT or MRI rooms, wireless signals are prone to interruption and packet loss, leading to the loss of critical medical data and failing to meet the data transmission requirements of high-reliability medical scenarios. Furthermore, the limited battery life of wireless probes necessitates frequent battery replacements, interrupting monitoring, or requires carrying large-capacity batteries, reducing device portability. Current technologies lack intelligent intracranial pressure monitoring systems capable of dynamically switching connection modes according to actual application environments and needs, failing to simultaneously ensure data transmission reliability and patient convenience. Summary of the Invention

[0006] To address the technical challenges of existing intracranial pressure monitoring systems, such as cable pulling risks and inconvenience in wired connections, and signal interruptions and limited battery life in wireless connections, and to achieve reliable intracranial pressure monitoring with full-scene coverage, this paper provides a wired-to-wireless dual-mode switching intracranial pressure monitoring system and monitoring method.

[0007] The technical solution adopted by this invention to solve its technical problem is: In a first aspect, the present invention provides a wired-to-wireless dual-mode switching intracranial pressure monitoring system, comprising: Intracranial pressure monitoring probes are used to collect intracranial pressure data and convert pressure signals into electrical signals; A data caching module, connected to the intracranial pressure monitoring probe, is used to temporarily store data during mode switching; A dual-mode switching module, connected to the data cache module and the intracranial pressure monitoring probe, is used to switch between wired connection mode and wireless connection mode; Medical shielded cable for transmitting data in the wired connection mode; A wireless communication module is used to transmit data in the wireless connection mode; The monitor host is used to receive and process data from the medical shielded cable or the wireless communication module; A power management module is used to manage the power supply of the system and to charge the built-in battery via the medical shielded cable in the wired connection mode.

[0008] Furthermore, the data caching module is configured to store the real-time data collected by the intracranial pressure monitoring probe when the dual-mode switching module performs mode switching, and to continue transmitting the cached data to the monitor host after the switching is completed.

[0009] Furthermore, the dual-mode switching module includes a control circuit configured to trigger mode switching in response to a manual operation command or an automatic detection condition; The automatic detection conditions include at least one of electromagnetic interference level, cable connection status, or battery power.

[0010] Furthermore, the control circuit is implemented based on a microcontroller, which is configured to automatically switch from wireless connection mode to wired connection mode when electromagnetic interference exceeds a preset threshold.

[0011] Furthermore, the power management module includes a power conversion chip configured to distribute power and charge the built-in battery in the wired connection mode, while switching to battery power in the wireless connection mode, and has overcharge and over-temperature protection functions.

[0012] Furthermore, the wireless communication module includes at least one of a Bluetooth communication chip and a WiFi communication chip, and is configured with signal enhancement and anti-interference algorithms to improve data transmission stability.

[0013] Furthermore, the monitor host is configured to amplify, filter, and perform analog-to-digital conversion on the received data, and display intracranial pressure information in the form of digital values ​​or trend curves, while also supporting data storage and analysis.

[0014] In a second aspect, the present invention also provides a method for monitoring intracranial pressure in the system described in any of the first aspects above, comprising the following steps: Intracranial pressure data is continuously collected using the intracranial pressure monitoring probe. The dual-mode switching module dynamically selects between wired and wireless connection modes. During mode switching, the collected data is temporarily stored through the data caching module; Data is transmitted to the monitor host for processing and display via the selected connection mode.

[0015] Furthermore, the dynamic selection step includes: automatically triggering mode switching based on environmental parameters, wherein when strong electromagnetic interference is detected, the mode is preferentially switched to wired connection mode, and when the cable is detected to be disconnected, the mode is switched to wireless connection mode.

[0016] Furthermore, the automatic trigger mode switching also includes: monitoring the battery level through the power management module, prompting a wired power connection when the battery level is below a threshold, and automatically charging when a wired connection is established.

[0017] The beneficial effects that this application can produce include: This application achieves flexible switching between wired and wireless connection modes through a dual-mode switching module. Compared with existing intracranial pressure monitoring systems with a single connection mode, it can cover a full range of applications, including intraoperative monitoring in the operating room, bed rest monitoring in the ICU, rehabilitation monitoring in general wards, and intra-hospital transport monitoring. In scenarios such as ICUs and general wards, wireless connection is used to avoid accidental removal or displacement of probes due to cable pulling, reducing the risk of cerebrospinal fluid leakage and wound infection. In environments with strong electromagnetic interference, such as operating rooms, CT rooms, and MRI rooms, it automatically switches to wired connection, solving the technical defects of existing wireless systems such as easy signal interruption and data loss. The data caching module stores data during the switching process, ensuring the continuity of data transmission. The power management module charges the built-in lithium battery simultaneously during wired connection, solving the problems of frequent disassembly and charging and monitoring interruption in existing wireless systems, thus balancing mobility and reliability. Attached Figure Description

[0018] Figure 1 This is a structural block diagram of a wired-wireless dual-mode switching intracranial pressure monitoring system provided in one embodiment of this application. Figure 2 This is a flowchart illustrating an intracranial pressure monitoring method according to one embodiment of this application. Detailed Implementation

[0019] The present application is described in detail below with reference to the embodiments, but the present application is not limited to these embodiments.

[0020] Example 1 In this embodiment, please refer to Figure 1 This application provides a wired-to-wireless dual-mode switching intracranial pressure monitoring system, including: an intracranial pressure monitoring probe, a data buffer module, a dual-mode switching module, a medical shielded cable, a wireless communication module, a monitor host, and a power management module.

[0021] The intracranial pressure monitoring probe uses a pressure sensor design, which, after being implanted in the patient's brain, can collect intracranial pressure change signals in real time. The sensor converts the detected pressure signal into a corresponding electrical signal output, providing a basic signal source for subsequent data processing.

[0022] The data caching module connects to the intracranial pressure monitoring probe via a data cable and has a built-in high-speed memory for temporary storage of intracranial pressure data. When the dual-mode switching module performs a mode switch, the data caching module stores the real-time data collected by the intracranial pressure monitoring probe and, after the switch is complete, retransmits the cached data to the monitor's main unit, ensuring the continuity and integrity of data transmission and preventing data loss due to mode switching.

[0023] The dual-mode switching module connects to the data buffer module and the intracranial pressure monitoring probe, and is responsible for intelligently switching between wired and wireless connection modes. The dual-mode switching module includes a control circuit implemented based on a microcontroller, capable of triggering mode switching in response to manual operation commands or automatic detection conditions. Automatic detection conditions include at least one of the following: electromagnetic interference level, cable connection status, or battery level. When the microcontroller detects electromagnetic interference exceeding a preset threshold, it automatically switches from wireless connection mode to wired connection mode to avoid signal quality degradation caused by electromagnetic interference in wireless transmission.

[0024] The medical shielded cable features a multi-layered shielding structure, with an outer layer of metal braided mesh shielding that effectively blocks external electromagnetic interference. In wired connection mode, the medical shielded cable serves as a data transmission channel, reliably transmitting intracranial pressure data to the monitor's main unit while simultaneously providing charging power for the system's built-in battery.

[0025] The wireless communication module includes at least one of a Bluetooth communication chip and a WiFi communication chip, and is equipped with signal enhancement and anti-interference algorithms to improve data transmission stability. In wireless connection mode, the wireless communication module wirelessly transmits intracranial pressure data to the wireless receiver of the monitor host. The signal enhancement algorithm optimizes the transmission power and antenna gain, while the anti-interference algorithm reduces the impact of environmental interference on transmission quality through spectrum analysis and adaptive modulation techniques.

[0026] It is understood that wireless communication modules are not limited to Bluetooth communication chips and WiFi communication chips. Wireless communication modules can also be selected from at least one of Zigbee communication chips, LoRa communication chips, NB communication chips, Proprietary communication chips, Thread communication chips, Wi-SUN communication chips, and Z-Wave communication chips.

[0027] The monitor's main unit serves as the system's data processing and display terminal, capable of receiving and processing data from medical shielded cables or wireless communication modules. The main unit has built-in signal processing circuitry that amplifies, filters, and performs analog-to-digital conversion on the received data, displaying intracranial pressure information as digital values ​​or trend curves. It also supports data storage and analysis functions. Medical staff can manually control the transmission mode by sending manual switching commands through the monitor's touchscreen.

[0028] The power management module manages the power requirements of the entire system. This includes a power conversion chip that distributes power and charges the built-in battery in wired connection mode, while switching to battery power in wireless connection mode. It also features overcharge and over-temperature protection. The power conversion chip converts external power into the operating voltage required by each module in the system and provides safe charging for the lithium battery through intelligent charging algorithms.

[0029] The system defaults to wireless connection mode, with the microcontroller of the dual-mode switching module executing intelligent control logic for automatic switching. In operating room intraoperative monitoring scenarios, when electromagnetic interference increases due to the activation of the high-frequency electrosurgical unit or anesthesia machine, the dual-mode switching module triggers a switching command. The microcontroller immediately activates the data buffer module, writing intracranial pressure data into the buffer, and simultaneously outputs a control signal to drive the analog switch from wireless to wired connection. After switching, the microcontroller first transmits the buffered data to the monitor host via a medical shielded cable, and then directly transmits the real-time acquired signal via wired connection. The power management module obtains a stable power supply via wired connection, stopping lithium battery discharge and switching to charging mode.

[0030] In intra-hospital transport scenarios, when a patient is transferred from the intensive care unit to the radiology department, the medical shielded cable is disconnected, switching to the wireless communication module. The power management module automatically switches to lithium battery power upon detecting a wired power interruption. If the patient needs to enter a strong magnetic environment such as an MRI room, medical staff can connect the medical shielded cable and send a manual switching command through the monitor's main unit; the microcontroller immediately switches to wired mode.

[0031] During the recovery period in the intensive care unit, wireless connection mode is used to prevent accidental removal or displacement of the probe when the patient moves or their position is adjusted. After the system is powered on, the dual-mode switching module controls the analog switch to the wireless channel by default. The analog signal collected by the intracranial pressure monitoring probe is transmitted to the dual-mode switching module, converted into a digital signal by the microcontroller, and then sent to the wireless communication module for modulation and transmission. The monitor host receives the signal, processes it, and displays it in digital and trend curve form.

[0032] Example 2 In this embodiment, please refer to Figure 2 This application also provides an intracranial pressure monitoring method for a wired-wireless dual-mode switching connection intracranial pressure monitoring system. Based on the system hardware architecture described in Embodiment 1, intelligent data acquisition, transmission mode switching, and power management are achieved through software control logic.

[0033] This method continuously collects intracranial pressure data using an intracranial pressure monitoring probe. The intracranial pressure monitoring probe employs the pressure sensor design described in Example 1. After being implanted in the patient's cranium, it detects pressure changes in real time and converts them into electrical signals, providing a continuous data source for subsequent processing.

[0034] This method dynamically selects between wired and wireless connection modes through a dual-mode switching module. The microcontroller in the module executes intelligent control logic, automatically triggering mode switching based on environmental parameters. When strong electromagnetic interference is detected, it prioritizes switching to wired connection mode; when a cable disconnection is detected, it switches to wireless connection mode. Specifically, the microcontroller monitors the electromagnetic signal strength in the environment through an electromagnetic interference detection circuit. When the detected value exceeds a preset threshold, it determines the presence of strong electromagnetic interference and immediately outputs a control signal to drive an analog switch to switch from the wireless path to the wired path, utilizing the multi-layered shielding structure of the medical shielded cable to resist electromagnetic interference. Simultaneously, the microcontroller continuously monitors the wired connection status. When a disconnection of the medical shielded cable or signal interruption is detected, it automatically activates the wireless path to ensure continuous data transmission.

[0035] During mode switching, this method temporarily stores the collected data through a data caching module. The data caching module employs the high-speed memory design described in Embodiment 1. When the dual-mode switching module performs mode switching, the microcontroller immediately controls the data caching module to start, writing the real-time data collected by the intracranial pressure monitoring probe into the cache memory to prevent data loss during the switching process. After switching is complete, the microcontroller first sends the cached data to the monitor host through the newly selected transmission channel, and then resumes real-time data transmission to ensure data integrity and continuity.

[0036] This method transmits data to the monitor's main unit for processing and display via a selected connection mode. In wired connection mode, data is transmitted to the monitor's main unit via a medical shielded cable; in wireless connection mode, data is modulated and transmitted by the wireless communication module and then received by the monitor's main unit. The monitor's main unit amplifies, filters, and performs analog-to-digital conversion on the received data, and displays intracranial pressure information as digital values ​​or trend curves.

[0037] The automatic trigger mode switching in this method also includes a power management function. The power management module continuously monitors the power status of the built-in lithium battery. When the power level falls below a preset threshold, the system automatically issues a buzzer prompt, guiding medical staff to connect to wired power. After the wired connection is established, the power conversion chip in the power management module automatically converts the external power supply to the system operating voltage, while simultaneously charging the lithium battery through an intelligent charging algorithm. The LED indicator turns pure green to indicate the charging status.

[0038] This method demonstrates good adaptability in practical applications. In the operating room environment, when the activation of equipment such as high-frequency electrosurgical units and anesthesia machines increases electromagnetic interference, the system automatically switches from wireless to wired mode to avoid interference affecting data transmission quality. In intra-hospital transport scenarios, when a patient needs to be moved, the system automatically switches to wireless mode after detecting a wired connection loss, and the power management module simultaneously switches to battery power to ensure continuous monitoring during transport. During the recovery period in the intensive care unit, the system defaults to wireless connection mode, reducing the risk of probe displacement due to patient movement or nursing operations.

[0039] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A wired-to-wireless dual-mode switching intracranial pressure monitoring system, characterized in that, include: Intracranial pressure monitoring probes are used to collect intracranial pressure data and convert pressure signals into electrical signals; A data caching module, connected to the intracranial pressure monitoring probe, is used to temporarily store data during mode switching; A dual-mode switching module, connected to the data cache module and the intracranial pressure monitoring probe, is used to switch between wired connection mode and wireless connection mode; Medical shielded cable for transmitting data in the wired connection mode; A wireless communication module is used to transmit data in the wireless connection mode; The monitor host is used to receive and process data from the medical shielded cable or the wireless communication module; A power management module is used to manage the power supply of the system and to charge the built-in battery via the medical shielded cable in the wired connection mode.

2. The system according to claim 1, characterized in that, The data caching module is configured to store real-time data collected by the intracranial pressure monitoring probe when the dual-mode switching module performs mode switching, and to continue transmitting the cached data to the monitor host after the switching is completed.

3. The system according to claim 1, characterized in that, The dual-mode switching module includes a control circuit configured to trigger mode switching in response to a manual operation command or an automatic detection condition. The automatic detection conditions include at least one of electromagnetic interference level, cable connection status, or battery power.

4. The system according to claim 3, characterized in that, The control circuit is implemented based on a microcontroller, which is configured to automatically switch from wireless connection mode to wired connection mode when electromagnetic interference exceeds a preset threshold.

5. The system according to claim 1, characterized in that, The power management module includes a power conversion chip, configured to distribute power and charge the built-in battery in the wired connection mode, and switch to battery power in the wireless connection mode, and has overcharge and over-temperature protection functions.

6. The system according to claim 1, characterized in that, The wireless communication module includes at least one of a Bluetooth communication chip and a WiFi communication chip, and is configured with signal enhancement and anti-interference algorithms to improve data transmission stability.

7. The system according to claim 1, characterized in that, The monitor host is configured to amplify, filter, and perform analog-to-digital conversion on the received data, and display intracranial pressure information in the form of digital values ​​or trend curves, while also supporting data storage and analysis.

8. A method for monitoring intracranial pressure in the system according to any one of claims 1-7, characterized in that, Includes the following steps: Intracranial pressure data is continuously collected using the intracranial pressure monitoring probe. The dual-mode switching module dynamically selects between wired and wireless connection modes. During mode switching, the collected data is temporarily stored through the data caching module; Data is transmitted to the monitor host for processing and display via the selected connection mode.

9. The method according to claim 8, characterized in that, The dynamic selection step includes: automatically triggering mode switching based on environmental parameters, wherein when strong electromagnetic interference is detected, the mode is switched to wired connection mode first, and when the cable is detected to be disconnected, the mode is switched to wireless connection mode.

10. The method according to claim 9, characterized in that, The automatic trigger mode switching also includes: monitoring the battery level through the power management module, prompting a wired power connection when the battery level is below a threshold, and automatically charging when a wired connection is established.

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