A patch-type electrocardiogram monitoring device with multi-parameter measurement

Abstract

This invention discloses a patch-type electrocardiogram (ECG) monitoring device for multi-parameter measurement, comprising a patch unit and a monitoring unit. The monitoring unit includes a microprocessor, a first AD acquisition module, a second AD acquisition module, a posture sensor, a pressure sensor, a magnetic sensor, a data storage module, a magnetic high-speed read / write interface, and a sound acquisition unit. This invention reduces the impact of electromyographic and displacement interference by incorporating a posture sensor. It utilizes the combined posture, pressure, and sound sensors to record call functions and store symptom reports at specific moments. The magnetic sensor and magnetic high-speed read / write interface exponentially increase the data transmission rate, enabling large-scale data transmission in a short time and mitigating the conflict between data transmission and long-term monitoring. The housing makes the device waterproof, dustproof, and easy to remove, reducing the impact on the monitored individual's daily life.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, specifically relating to a patch-type electrocardiogram monitoring device for multi-parameter measurement. Background Technology

[0002] From a medical perspective, ECG monitoring of individuals at risk of cardiovascular disease and those undergoing testing can improve the detection rate of atrial fibrillation. Therefore, single-lead ECG patch monitoring devices have been widely adopted in the market. Currently, single-lead ECG patch monitoring devices come in various forms, possess the ability to monitor changes in ECG signals on the human skin, are easy to operate, lightweight, and can store data. Monitoring periods range from one day to 14 days, allowing the devices to effectively capture abnormal ECG signals in patients at certain times. However, numerous problems arise when operating in complex environments, leading to skepticism among medical professionals regarding their widespread adoption. These problems can be summarized as follows. First, there are many interferences during the monitoring process, such as electromyographic interference, displacement interference, AC / DC interference, and electrode interference. Suppressing the impact of interference on the signal is the primary issue. Second, patient monitoring lacks fall call and symptom storage functions. Although many devices currently have event recording functions, they lack the ability to store the subject's subjective voice and fall call. Third, the contradiction between data transmission and long-term monitoring in ECG monitoring equipment cannot be overcome. Some devices have to be sent back to the manufacturer to retrieve data, while others need to be removed from the patient for extended periods to process the data. Finally, monitoring equipment has a significant impact on daily life, such as bathing and specific movement postures. Summary of the Invention

[0003] The purpose of this invention is to provide a patch-type electrocardiogram monitoring device for multi-parameter measurement. This device reduces various signal interferences, has a fall call function and symptom complaint storage, and can switch between low-speed storage and high-speed read / write modes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A patch-type electrocardiogram monitoring device for multi-parameter measurement includes a patch unit for patching on the body surface of the subject to acquire simulated electrocardiogram signals.

[0006] The monitoring unit, connected to the patch unit, is used to acquire and analyze analog electrocardiogram (ECG) signals.

[0007] The monitoring unit includes a microprocessor, a first AD acquisition module, a second AD acquisition module, an attitude sensor, a pressure sensor, a magnetic sensor, and a data storage module connected to the microprocessor. The data storage module is connected to a magnetic high-speed read / write interface. The first AD acquisition module is connected to the application unit, and the second AD acquisition module is connected to a sound collector.

[0008] Based on the posture information of the object being tested collected by the posture sensor, the state of the object being tested is divided into resting state, swinging state, and continuous state, and different ECG algorithms are used to analyze the ECG signals collected in different states.

[0009] When the pressure sensor collects a pressure signal or the posture sensor collects a fall signal, a heartbeat mode is activated for a certain period of time. In the heartbeat mode, both the electrocardiogram signal and the sound acquisition device collect sound signals at the same time.

[0010] When the high-speed read / write interface is connected to the host computer, the magnetic field will change. The magnetic sensor collects the data of the magnetic field change. When the magnetic field changes, the data storage module is in high-speed read mode; otherwise, the data storage module is in low-speed storage mode.

[0011] Furthermore, the application unit includes, from bottom to top, a bottom sticker layer, a conductive sticker layer, an insulating sticker layer, a flexible conductive sheet layer, and an insulating sticker layer. The conductive sticker layer includes two symmetrically arranged electrode pieces, which are connected to the flexible conductive sheet layer. The flexible conductive sheet layer is also equipped with a conductive button, which passes through the insulating sticker layer and is connected to the monitoring unit.

[0012] Furthermore, the present invention includes a housing for mounting the monitoring unit, the housing also having a battery pack connected to the monitoring unit and a buttonhole for connecting to the lead button; the pressure sensor is located at the top of the housing, and the magnetic probe of the high-speed read / write interface is located at the bottom of the housing.

[0013] This invention reduces the impact of electromyography and displacement interference by using a built-in posture sensor. It also features call function and symptom complaint storage function by using posture sensor, pressure sensor and sound sensor to record special moments. The data transmission rate is exponentially increased by using magnetic sensor and magnetic high-speed read and write interface, realizing large data transmission in a short time and reducing the contradiction between data transmission and long-term detection. The device is waterproof, dustproof and easy to remove by setting up a shell, reducing the impact of the device on the daily life of the monitored object. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is an exploded view of the structure of the present invention.

[0016] Figure 3 This is an exploded view of the structure of the application unit of the present invention.

[0017] Figure 4 This is a schematic diagram of the monitoring unit of the present invention.

[0018] The markings in the diagram are: 10, housing; 11, bottom shell; 12, top cover; 20, application unit; 21, bottom sticker layer; 22, conductive sticker layer; 23, insulating sticker layer; 24, flexible lead sheet layer; 25, insulating sticker layer; 26, lead button; 30, monitoring unit; 40, battery pack; 50, button socket; 60, magnetic probe. Detailed Implementation

[0019] This embodiment provides a patch-type electrocardiogram (ECG) monitoring device for multi-parameter measurement. This device can not only collect ECG signals, but also posture signals, pressure signals, sound signals, and magnetic field change signals. It can also classify the collected signals into different modes and states, and perform different analyses on the data of different modes and states. In addition to ECG monitoring, it can also realize fall detection and subjective complaint alarms.

[0020] like Figures 1-2 As shown, the multi-parameter measurement patch-type ECG monitoring device described in this embodiment includes a housing 10, a monitoring unit 30, and a patch unit 20. The housing 10 includes a bottom shell 11 and a top cover 12. The monitoring unit 30 is a PCB circuit board with different functional modules. The PCB circuit board is installed inside the bottom shell 11. A buttonhole 50 is installed at the bottom of the bottom shell 11. The buttonhole 50 has a through hole at the bottom of the bottom shell 11 to facilitate the connection of the lead button 26 to the buttonhole 50. A battery pack 40 connected to the PCB circuit board is also installed at the bottom for power supply.

[0021] The patch unit 20 is used to be applied to the surface of the subject's body to obtain simulated electrocardiogram signals, such as... Figure 3 As shown, it includes, from bottom to top, a bottom sticker layer 21, a conductive sticker layer 22, an insulating sticker layer 2523, a flexible conductive sheet layer 24, and an insulating sticker layer 2523. The conductive sticker layer 22 includes two symmetrically arranged electrode pieces, which are connected to the flexible conductive sheet layer 24. The flexible conductive sheet layer 24 is also equipped with a conductive button 26, which passes through the insulating sticker layer 2523 and is detachably connected to the button socket 50. When the application unit 20 is applied to the surface of the object being tested, the two electrode pieces acquire two electrocardiogram analog signals, which are transmitted to the monitoring unit 30 through the flexible conductive sheet layer 24 and the conductive button 26. The application unit 20 ensures flexibility, conductivity, waterproofness, and low cost while preventing skin allergies and being easy to apply and remove.

[0022] The monitoring unit 30 is used to acquire analog electrocardiogram signals and other signals, and to analyze the acquired signals, such as... Figure 4As shown, it includes a microprocessor, and a first AD acquisition module, a second AD acquisition module, an attitude sensor, a pressure sensor, a magnetic sensor, and a data storage module connected to the microprocessor. The data storage module is connected to a magnetic high-speed read / write interface. The first AD acquisition module is connected to a button female port 50, and the second AD acquisition module is connected to a sound acquisition device.

[0023] Based on the posture information collected by the posture sensor, the state of the tested object is divided into resting state, swinging state, and continuous state. Different ECG algorithms are used to analyze the ECG signals collected in different states. The continuous state refers to a continuous state caused by the stretching or compression of the applied electrode pads due to changes in the body's posture. In this state, the deformation of the chest muscles generates continuous electromyography (EMG) on the skin surface, introducing continuous EMG interference or electrode jitter interference when collecting surface ECG signals. This state is classified as red. The swinging state refers to an irregular state caused by changes in the body's posture, resulting in stretching or compression of the applied electrode pads. In this state, the EMG signals generated by the deformation of the chest muscles are non-continuous, introducing intermittent irregular EMG interference or electrode jitter interference when the ECG patch device collects surface ECG signals. This state is classified as yellow. The resting state refers to a state where there is no or minimal stretching or compression of the applied electrode pads due to changes in the body's posture. In this state, the EMG generated by the chest muscles is negligible, and the ECG patch device is not affected by EMG or electrode jitter interference when collecting surface ECG signals. This state is classified as green. The ECG signals collected by the ECG patch device are classified and saved in three categories. In the later processing, different filtering and extraction methods are used for different types to reduce electromechanical interference and jitter interference from the patching unit 20.

[0024] When the pressure sensor collects a pressure signal or the posture sensor collects a fall signal, a "heart-sound mode" is activated for a certain period. In this mode, both electrocardiogram (ECG) signals and sound signals are simultaneously acquired by the sound acquisition device. The operation consists of two modes: ECG mode and heart-sound mode. In ECG mode, the sound sensor is not active, reducing power consumption and data volume. In heart-sound mode, both ECG and sound signals are collected. The heart-sound mode duration is preset, saving ECG and sound data within a specified time. The heart-sound mode begins when the pressure sensor collects a pressure signal or the posture sensor detects a fall. The pressure sensor is located on the top surface of the housing 10, i.e., on the upper cover 12, and is manually triggered by the object being tested.

[0025] When the high-speed read / write interface is connected to the host computer, the magnetic field changes. The magnetic sensor collects the data of this magnetic field change. When the magnetic field changes, the data storage module is in high-speed read mode; conversely, when the magnetic field changes, the data storage module is in low-speed storage mode. This embodiment proposes a low-speed storage mode and a high-speed read mode to control the operating state. The two modes are switched via a magnetic sensor. When the device is attached to the body for data collection, the magnetic high-speed read / write interface is disconnected, the magnetic field does not change, and the data storage module is connected to the microprocessor, achieving low-speed storage mode. When the device is connected to the data collection port, that is, when the magnetic high-speed read / write interface is connected to the host computer via a magnetic data cable, the magnetic probe 60 of the magnetic high-speed read / write interface is energized, causing a change in the magnetic field. The data storage module then connects to the magnetic high-speed read / write interface, switching to high-speed data read / write mode.

[0026] This embodiment provides a method for detecting multidimensional signals and marking external interference in electrocardiogram (ECG) signal monitoring. Adding multidimensional information is an important means to help doctors eliminate interference from the daily environment when performing single-lead ECG monitoring on subjects. For example, enabling medical staff interpreting the ECG to understand environmental changes and the subject's complaints can greatly reduce the interference of the daily environment on signal analysis.

[0027] After the device is attached to the object being tested, the magnetic sensor detects the external magnetic field state and confirms that the device is in low-speed storage mode. The first AD acquisition module acquires the analog electrocardiogram signal and converts it into an electrocardiogram signal, and begins real-time acquisition and analysis of data from the pressure sensor and posture sensor.

[0028] First, the collected ECG signals are classified and labeled according to the results from the posture sensor, categorizing them into one of three types (green, yellow, or red). Based on the different data labeling types, the backend uses different filtering and extraction methods to analyze the ECG signals and provides the subject's posture information for reference by medical personnel interpreting the images during ECG analysis.

[0029] This embodiment also provides a multi-dimensional data storage method. During ECG data monitoring, when the subject applies a specified pressure to the device or is in a fallen position, the cardiac sound mode is activated. The sound acquisition unit collects sound signals and records the subject's complaints, such as palpitations, chest tightness, and dizziness. The first and second AD acquisition modules can use two channels of a single chip, such as the ADS1x9x chip, to acquire ECG and sound signals at the same high sampling rate. The acquired signals are stored in the data storage module, enabling the monitoring of the sound ECG signal based on environmental changes and the subject's complaints within a specified time. Alternatively, the first and second AD acquisition modules can use two independent acquisition channels. The ECG signal uses a single high-precision AD acquisition module, while the sound signal uses a high-precision acquisition module within a low-power processing unit. Different sampling rates are used to acquire the ECG and sound signals, enabling the monitoring of the sound ECG signal based on environmental changes and the subject's complaints within a specified time. After collecting external sounds within a specified time, the system switches from the heart sound mode to the power-saving ECG mode, where posture information, pressure information, and ECG signals are recorded.

[0030] This embodiment also provides a fall detection and distress call method. When the subject presses the device in a specified manner or the human body is in a fall state, the heart sound mode is activated, the sound collector collects sound signals, records the subject's complaints and distress calls, such as using sound signals to issue an alarm or using built-in Bluetooth to send the subject's complaints and alarm information to a connected mobile phone, or dialing a designated contact person's phone number or requesting help.

[0031] This embodiment also provides a high-speed data reading method. After the ECG data monitoring is completed, the device needs to be removed from the subject and the data needs to be uploaded. After the magnetic high-speed read / write interface is connected, the magnetic field changes. The magnetic sensor detects the change in the magnetic field, and the data storage module is connected to the magnetic high-speed read / write interface, switching to high-speed read / write mode, which can perform high-speed read / write operations on the data.

[0032] This embodiment employs a multi-parameter measurement method, providing various environmental conditions, human postures, and sound signals from daily life for the collected electrocardiogram (ECG) data. It offers marked interference data to interpreters from multiple perspectives, while also providing a novel design structure for patient wear and a high-speed data interface for data upload. All of these overcome the difficulties in the use of single-lead ECG monitoring devices, facilitate accurate diagnosis for doctors, and provide convenience and comfort for the tested individuals.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by the present invention should be covered within the scope of protection of the present invention.

Claims

1. A patch-type electrocardiogram monitoring device for multi-parameter measurement, comprising a patch unit for patching on the body surface of the subject to acquire simulated electrocardiogram signals; The monitoring unit, connected to the patch unit, is used to acquire and analyze analog electrocardiogram (ECG) signals. Its features are: The monitoring unit includes a microprocessor, a first AD acquisition module, a second AD acquisition module, an attitude sensor, a pressure sensor, a magnetic sensor, and a data storage module connected to the microprocessor. The data storage module is connected to a magnetic high-speed read / write interface. The first AD acquisition module is connected to the application unit, and the second AD acquisition module is connected to a sound collector. Based on the posture information of the object being tested collected by the posture sensor, the state of the object being tested is divided into resting state, swinging state, and continuous state, and different ECG algorithms are used to analyze the ECG signals collected in different states. Among them, the resting state refers to a state in which the applied electrode pads are not stretched or compressed much due to changes in the human body's posture. In this state, the electromyography generated by the muscles of the human chest is so small that it can be ignored. The continuous state refers to a continuous state caused by the stretching or compression of the applied electrode pads due to changes in human body posture. In this state, the deformation of the muscles in the human chest generates continuous electromyography on the skin surface. The swinging state refers to an irregular state caused by the stretching or compression of the applied electrode pads due to changes in the human body's posture. In this state, the electromyographic signals generated by the deformation of the chest muscles are not continuous. When the pressure sensor collects a pressure signal or the posture sensor collects a fall signal, a heartbeat mode is activated for a certain period of time. In the heartbeat mode, both electrocardiogram signals and sound signals are collected by the sound collector. When the high-speed read / write interface is connected to the host computer, the magnetic field changes, and the magnetic sensor collects the data of this magnetic field change. When the magnetic field changes, the data storage module is in high-speed read mode; conversely, when the magnetic field changes, the data storage module is in low-speed storage mode. The application unit includes, from bottom to top, a bottom sticker layer, a conductive sticker layer, an insulating sticker layer, a flexible lead sheet layer, and an insulating sticker layer. The conductive sticker layer includes two symmetrically arranged electrode pieces, which are connected to the flexible lead sheet layer. The flexible lead sheet layer is also equipped with a lead button, which passes through the insulating sticker layer and is connected to the monitoring unit. The device includes a housing for mounting the monitoring unit, and the housing also contains a battery pack connected to the monitoring unit and a buttonhole for connecting to the lead button; the pressure sensor is located at the top of the housing, and the magnetic probe of the high-speed read / write interface is located at the bottom of the housing.

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