Portable 18-guide dynamic and static integrated electrocardiogram recorder

Abstract

The utility model discloses a portable 18-lead dynamic and static integrated electrocardiogram recorder which comprises an 18-lead lead wire, a multi-order signal filtering conditioning circuit, a special integrated collector, a magnetic coupling isolator, an ARM processor, a Bluetooth module and an SD storage card. The 18-lead lead wire, the multi-order signal filtering and conditioning circuit, the special integrated collector, the magnetic coupling isolator and the ARM processor are connected in sequence; the Bluetooth module and the SD memory card are both connected with the ARM processor; electrocardiosignals are transmitted to the multi-order signal filtering and conditioning circuit through the full-lead lead wire to filter power frequency and other interference clutters, the special integrated collector receives and processes the electrocardiosignals into digital signals, the digital electrocardiosignals are processed by the ARM processor, and formatted electrocardiosignal data are stored in the SD memory card or are communicated through the Bluetooth module; according to the utility model, the device is small and exquisite and has a full-lead lead wire collection function at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of electrocardiogram monitoring, and more specifically to a portable 18-lead dynamic and static integrated electrocardiogram recorder. Background Art

[0002] An electrocardiograph is an instrument specifically used to record electrocardiograms, while a dynamic electrocardiograph is performed using a dynamic electrocardiograph recorder to continuously record for a long period of time during a person's daily activities, obtaining electrocardiogram graphs under various circumstances. This allows the detection of transient arrhythmias and transient myocardial ischemia that are not easily detected by conventional electrocardiograms, and further calculation of their frequency and analysis of the causes of the attacks. Electrocardiograph recording products have a wide range of applications and are essential medical equipment for cardiovascular diagnosis in the medical system.

[0003] However, the technology used in existing ECG recording products has many problems:

[0004] For example, the separation of dynamic and static functions increases usage and maintenance costs;

[0005] The existing multi-lead technology does not actually collect human ECG signals, but simulates and generates several collected signals through mathematical algorithms. It cannot provide a reliable reference for emergencies. The main reason is that if full lead wires are used, it is difficult to miniaturize the equipment.

[0006] The Bluetooth function used in the existing technology has no signal filtering circuit, the emission of interference signals is serious, the stability and reliability of Bluetooth transmission are poor, and it cannot cope with various complex electromagnetic interference environments and cannot be used in specific application scenarios.

[0007] Traditional recording devices use pluggable cards such as SD cards or mobile phone memory cards, which brings problems such as poor contact and data loss;

[0008] Traditional devices usually use optically coupled isolators, which cannot meet the data transmission speed requirements of current high-speed data acquisition.

[0009] Therefore, how to provide an electrocardiogram recorder that uses full lead wires, integrates dynamic and static functions, and has strong anti-interference capabilities is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0010] In view of this, the utility model provides a portable 18-lead dynamic and static integrated electrocardiograph to solve some of the technical problems mentioned in the background technology.

[0011] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0012] A portable 18-lead static and dynamic electrocardiograph recorder, comprising an 18-lead lead wire, a multi-order signal filtering and conditioning circuit, a dedicated integrated collector, a magnetic coupling isolator, an ARM processor, a Bluetooth module and an SD memory card;

[0013] The 18-lead lead wire, the multi-order signal filtering and conditioning circuit, the dedicated integrated collector, the magnetic coupling isolator and the ARM processor are connected in sequence;

[0014] Both the Bluetooth module and the SD memory card are connected to the ARM processor.

[0015] Preferably, the magnetic coupling isolator isolates the digital signals transmitted at high speed between the acquisition end and the processing end.

[0016] Preferably, the Bluetooth module includes a Bluetooth communication chip, a Bluetooth signal filtering circuit and a Bluetooth antenna;

[0017] The Bluetooth communication chip is connected to the ARM processor and is connected to the Bluetooth antenna through a Bluetooth signal filtering circuit.

[0018] Preferably, the SD memory card is an onboard SMD SD memory card, which is connected to the ARM processor to store ECG data and configuration parameters.

[0019] Preferably, the portable 18-lead static and dynamic electrocardiograph recorder further comprises an isolated USB communication chip and a USB communication interface;

[0020] The isolated USB communication chip is respectively connected to the onboard SMD SD memory card and the USB communication interface;

[0021] The isolated USB communication chip completes the signal isolation and communication between the onboard SMD SD memory card and the USB communication interface.

[0022] Preferably, the portable 18-lead static and dynamic electrocardiograph recorder further includes a dedicated card reader chip, which is connected to an onboard SMD SD memory card to read the storage data of the onboard SMD SD memory card to generate a USB flash drive.

[0023] Preferably, the portable 18-lead static and dynamic electrocardiograph recorder further includes a wide-voltage DC converter, which is connected to the dedicated integrated collector to convert the power supply of the collector end in an isolated manner.

[0024] Preferably, the portable 18-lead static and dynamic electrocardiograph recorder further includes a liquid crystal display screen, which is connected to the ARM processor, interacts with the ARM processor, and displays the processing results.

[0025] Preferably, the portable 18-lead static and dynamic electrocardiograph recorder further includes an RTC clock chip, which is connected to the ARM processor to provide a timestamp for the ARM processor.

[0026] Preferably, the portable 18-lead static and dynamic ECG recorder further includes a data storage device; the data storage device is connected to the ARM processor and is used to store ECG recorder configuration information, display information and picture information.

[0027] It can be seen from the above technical solutions that, compared with the prior art, the utility model discloses a portable 18-lead dynamic and static integrated ECG recorder, which adopts an ultra-low power consumption ARM processor, highly integrated electronic components, and unique digital filtering technology, and designs an ECG signal acquisition and transmission system with excellent performance according to the characteristics of human ECG signals, so as to realize a compact device with full lead wire acquisition function;

[0028] The full-lead lead wire is used to collect the real human ECG signal, solving the problem that the usual multi-lead does not actually collect the human ECG signal, but simulates and generates several collected signals through mathematical algorithms, and cannot provide a reliable reference for emergencies;

[0029] Signal isolation uses magnetic coupling isolators to replace traditional optical coupling isolators. While meeting the data transmission speed requirements of high-speed data acquisition, the transmission power consumption is reduced, the demand for power is reduced, and it helps to achieve miniaturization of the equipment.

[0030] The Bluetooth module used for data transmission innovatively adds a signal filtering circuit to the original Bluetooth module antenna end, which significantly improves the signal transmission quality and greatly reduces the emission of interference signals. The stability and reliability of Bluetooth transmission are increased, and it can adapt to various complex electromagnetic interference environments. At the same time, it will not cause signal interference to other medical equipment, solving the adaptability problem in specific application scenarios;

[0031] The data storage uses an onboard SMD SD memory card instead of a pluggable SD card, solving the problems of poor contact and data loss of the pluggable card used in traditional memory cards. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1The accompanying drawing is a schematic diagram of the overall structure of a portable 18-lead dynamic and static integrated electrocardiograph provided by the utility model;

[0034] Figure 2 The accompanying drawing is a schematic diagram of a magnetic coupling isolator circuit provided by the utility model;

[0035] Figure 3 The accompanying drawing is a schematic diagram of a Bluetooth module provided by the utility model;

[0036] Figure 4 The accompanying drawing is a schematic diagram of a Bluetooth signal filtering circuit provided by the utility model;

[0037] Figure 5 The accompanying drawing is a schematic diagram of a circuit of an onboard SMD SD memory card provided by the utility model. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] The utility model discloses a portable 18-lead dynamic and static electrocardiograph. Figure 1 , including 18-lead lead wire, multi-order signal filtering and conditioning circuit, dedicated integrated collector, magnetic coupling isolator, ARM processor, Bluetooth module and SD memory card;

[0040] The 18-lead lead wire, the multi-order signal filtering and conditioning circuit, the dedicated integrated collector, the magnetic coupling isolator and the ARM processor are connected in sequence;

[0041] Both the Bluetooth module and the SD memory card are connected to the ARM processor.

[0042] In this embodiment, the 18-lead lead wire is used to collect human electrocardiogram signals;

[0043] Multi-order signal filtering and conditioning circuit, used to filter out power frequency interference and signals other than the ECG signal frequency;

[0044] A dedicated integrated collector is used to convert ECG analog signals into digital signals through a single integrated chip;

[0045] The ARM processor is used to analyze and process the digital signal, format the ECG signal, and store the formatted ECG data to the onboard SMD SD memory card or upload it via the Bluetooth module.

[0046] In practical applications, the ECG recorder is connected to a host computer.

[0047] In order to further implement the above technical solution, Figure 2 , the magnetic coupling isolator isolates the high-speed digital signals transmitted between the acquisition end and the processing end.

[0048] In practical applications, the main chip U5 of the magnetic coupling isolator adopts ADUM3160BRWZ, and the isolated power chip U6 of the magnetic coupling isolator adopts B0505XT-1WR2.

[0049] In order to further implement the above technical solution, Figure 3 and Figure 4 ,The Bluetooth module includes a Bluetooth communication chip, a Bluetooth signal filtering circuit and a Bluetooth antenna;

[0050] The Bluetooth communication chip is connected to the ARM processor and is connected to the Bluetooth antenna through a Bluetooth signal filtering circuit;

[0051] The Bluetooth communication chip completes Bluetooth communication with the host computer, and the Bluetooth wireless connection is suitable for special applications; the Bluetooth signal filtering circuit improves the signal transmission quality, reduces external signal radiation, and adapts to complex electromagnetic environments and special applications.

[0052] In actual applications, the Bluetooth communication chip U9 uses BT986, and the Bluetooth signal filter circuit chip L6 uses LFB182G45SG9A293.

[0053] In order to further implement the above technical solution, Figure 5 ,The SD memory card is an onboard SMD SD memory card, which is connected to the ARM processor to store ECG data and configuration parameters.

[0054] In order to further implement the above technical solution, a portable 18-lead dynamic and static integrated electrocardiograph recorder also includes an isolated USB communication chip and a USB communication interface;

[0055] The isolated USB communication chip is respectively connected to the onboard SMD SD memory card and the USB communication interface;

[0056] The isolated USB communication chip completes the signal isolation and communication between the onboard SMD SD memory card and the USB communication interface.

[0057] In order to further implement the above technical solution, a portable 18-lead static and dynamic electrocardiograph recorder also includes a dedicated card reader chip, which is connected to an onboard SMD SD memory card to read the storage data of the onboard SMD SD memory card to generate a USB flash drive.

[0058] In actual applications, the chip USD of the onboard SMD SD memory card adopts MKDV8GIL-AS, and the dedicated card reader chip U4 adopts GL896.

[0059] In order to further implement the above technical solution, a portable 18-lead static and dynamic electrocardiograph recorder also includes a wide-voltage DC converter, which is connected to a dedicated integrated collector to convert the power supply of the collector in an isolated manner.

[0060] In order to further implement the above technical solution, a portable 18-lead static and dynamic electrocardiograph recorder also includes a liquid crystal display screen, which is connected to the ARM processor, interacts with the ARM processor, and displays the processing results.

[0061] In order to further implement the above technical solution, a portable 18-lead static and dynamic electrocardiograph recorder also includes an RTC clock chip, which is connected to the ARM processor to provide a timestamp for the ARM processor.

[0062] In order to further implement the above technical solution, a portable 18-lead static and dynamic electrocardiograph recorder also includes a data storage device; the data storage device is connected to the ARM processor and is used to store configuration information, display information and picture information of the electrocardiograph recorder.

[0063] The working process of the utility model is as follows: the human body ECG signal is transmitted by the full-lead lead wire to the multi-order signal filtering and conditioning circuit to filter out the power frequency and other interference clutter, and then is received and processed into a digital signal by the dedicated integrated collector, and the digital ECG signal is analyzed and processed by the ARM processor, and the formatted ECG data is stored in the onboard SMD SD memory card, and communicates with the host through Bluetooth or isolated USB.

[0064] The ARM processor is the core of ECG data processing, control and interactive management, and meets functional requirements such as low power consumption, miniaturization, and high-speed processing. Specifically, based on the collected signals, the ARM processor chip performs filtering algorithm processing to optimize the baseline and prevent baseline drift; it compresses the existing data and stores it in the SD card, or directly sends it to the host via Bluetooth or a data cable; it can also identify characteristic waves through chip processing and output them on the display.

[0065] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0066] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable 18-lead static and dynamic electrocardiograph, characterized in that: It includes 18-lead lead wires, multi-order signal filtering and conditioning circuits, dedicated integrated collectors, magnetic coupling isolators, ARM processors, Bluetooth modules and SD memory cards; The 18-lead lead wire, the multi-order signal filtering and conditioning circuit, the dedicated integrated collector, the magnetic coupling isolator and the ARM processor are connected in sequence; The Bluetooth module and SD memory card are both connected to the ARM processor; 18-lead lead wire, used to collect human ECG signals; Multi-order signal filtering and conditioning circuit, used to filter out power frequency interference and signals other than the ECG signal frequency; A dedicated integrated collector is used to convert ECG analog signals into digital signals through a single integrated chip; ARM processor, used to analyze and process digital signals, format ECG signals, and store the formatted ECG data to the onboard SMD SD memory card or upload it via the Bluetooth module; The magnetic coupling isolator isolates the high-speed digital signals transmitted between the acquisition end and the processing end; The SD memory card is an onboard SMD SD memory card, which is connected to the ARM processor to store ECG data and configuration parameters.

2. A portable 18-lead static and dynamic electrocardiograph according to claim 1, characterized in that: The Bluetooth module includes a Bluetooth communication chip, a Bluetooth signal filtering circuit and a Bluetooth antenna; The Bluetooth communication chip is connected to the ARM processor and is connected to the Bluetooth antenna through a Bluetooth signal filtering circuit.

3. The portable 18-lead static and dynamic electrocardiograph according to claim 1, characterized in that: Also includes an isolated USB communication chip and a USB communication interface; The isolated USB communication chip is respectively connected with the onboard SMD SD memory card and the USB communication interface; The isolated USB communication chip completes the signal isolation and communication between the onboard SMD SD memory card and the USB communication interface.

4. A portable 18-lead static and dynamic electrocardiograph according to claim 3, characterized in that: It also includes a dedicated card reader chip, which is connected to the onboard SMD SD memory card to read the storage data of the onboard SMD SD memory card to generate a U disk.

5. The portable 18-lead static and dynamic electrocardiograph according to claim 1, characterized in that: It also includes a wide-voltage DC converter, which is connected to a dedicated integrated collector to convert the power supply of the collector end in an isolated manner.

6. The portable 18-lead static and dynamic electrocardiograph according to claim 1, characterized in that: It also includes a liquid crystal display screen, which is connected to the ARM processor, interacts with the ARM processor, and displays processing results.

7. The portable 18-lead static and dynamic electrocardiograph according to claim 1, characterized in that: It also includes an RTC clock chip, which is connected to the ARM processor to provide a timestamp for the ARM processor.

8. The portable 18-lead static and dynamic electrocardiograph according to claim 1, characterized in that: It also includes a data storage device; the data storage device is connected to the ARM processor and is used to store configuration information, display information and picture information of the electrocardiograph recorder.

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