CN217793041U - Portable cardiac function noninvasive detection analyzer - Google Patents
Portable cardiac function noninvasive detection analyzer Download PDFInfo
- Publication number
- CN217793041U CN217793041U CN202123251368.XU CN202123251368U CN217793041U CN 217793041 U CN217793041 U CN 217793041U CN 202123251368 U CN202123251368 U CN 202123251368U CN 217793041 U CN217793041 U CN 217793041U
- Authority
- CN
- China
- Prior art keywords
- amplification
- thoracic impedance
- heart sound
- electrocardio
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The utility model relates to a portable cardiac function does not have wound detection analyzer belongs to medical equipment technical field. The detection analyzer comprises a collecting device, a control box, a main control unit, a touch display and a power supply module; the acquisition device comprises an electrocardio electrode, a heart sound sensor and a thoracic impedance electrode; the electrocardio-electrode, the heart sound sensor and the thoracic impedance electrode are respectively connected with the control box; the control box converts the electrocardiosignals collected by the electrocardio-electrodes, the heart sound signals collected by the heart sound sensor and the thoracic impedance signals collected by the thoracic impedance electrodes into digital signals, transmits the digital signals to the main control unit for synchronous processing, and finally obtains detection results and displays the detection results on the touch display or prints the detection results through a printing function. The utility model has the advantages of portable, the precision is high, the interference killing feature is strong, convenient upgrading, with low costs, intelligent degree height, have fine application prospect.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, a portable cardiac function does not have detection analysis appearance of wound is related to.
Background
The hemodynamic parameter monitoring method and the technology reflecting the heart health level are used for years of clinical application and have important clinical significance for medical treatment and scientific research. Currently, the methods of hemodynamic detection are mainly divided into two main categories: the first type is an invasive detection method, namely a traditional detection method, and as invasive data detection is required to be carried out on a tested person, the invasive detection method not only brings physical trauma and infection risk to the tested person, but also has higher requirements on the operation technology of a user and has limited scenes in clinical application; the second type is a noninvasive detection method, including a carbon dioxide displacement measurement method, a Doppler ultrasound method and a thoracic impedance method, wherein the thoracic impedance variation parameters of the thoracic impedance method have good application values for patients with heart failure, hypertension, dyspnea and the like, and do not cause wound pain to the patients, the detection cost is relatively low, and particularly in the occasions where the invasive method cannot be used, such as critical patients, light patients, catheter contraindication patients and healthy people, the thoracic impedance method is an ideal detection method. However, the detection device for realizing the hemodynamics non-invasive detection according to the thoracic impedance method at present in China is not accepted by doctors in the clinical application process due to the problems of detection precision, device use scene requirements and the like. Therefore, there is a need for further intensive research on the noninvasive cardiac function detection device based on the thoracic impedance method, which improves the precision of clinical application, enhances the capability of the device to meet different clinical application scene requirements, and realizes wide application of the noninvasive cardiac function detection device.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a portable cardiac function noninvasive detection analyzer that portability is good, clinical adaptability is wide, detect the precision height, the interference killing feature is strong, with low costs, intelligent degree is high, it is based on chest impedance change signal, electrocardio signal and heart sound signal integrated detection, processing and analysis to obtain the device that can be used to the hemodynamics parameter of the whole aassessment of testee's heart health state, thereby simplify detection device structure, and reduce cost.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a portable cardiac function noninvasive detection analyzer comprises an acquisition device, a control box, a main control unit, a touch display and a power supply module; the control box is connected between the acquisition device and the main control unit.
The acquisition device comprises an electrocardio electrode, a heart sound sensor and a chest impedance electrode; the electrocardio-electrode, the heart sound sensor and the thoracic impedance electrode are respectively connected with the control box; the control box converts electrocardiosignals acquired by the electrocardio electrodes, heart sound signals acquired by the heart sound sensor and chest impedance signals acquired by the chest impedance electrodes into digital signals, transmits the digital signals to the main control unit for synchronous processing, and finally obtains detection results such as cardiac hemodynamics indexes of a tested person and displays the detection results on the touch display or prints the detection results through a printing function.
The touch display is connected with the main control unit, and the power module provides power for the main control unit and the touch display.
Preferably, the control box comprises an acquisition unit, an electrocardiosignal isolation, amplification and conditioning module, a heart sound signal isolation, amplification and conditioning module, a thoracic impedance signal isolation, amplification and conditioning module and a thoracic impedance signal excitation module;
the electrocardio-electrode is connected with the electrocardio-signal isolating, amplifying and conditioning module through an electrocardio-lead line and an electrocardio-lead interface (ECG), and transmits the amplified and conditioned signals to a corresponding channel of the acquisition unit;
the heart sound sensor is connected with the heart sound signal isolation, amplification and conditioning module through a heart sound sensor interface (PCG), and transmits the amplified and conditioned signals to a corresponding channel of the acquisition unit;
the thoracic impedance electrode is connected with the thoracic impedance signal isolation, amplification and conditioning module and the thoracic impedance signal excitation module through a thoracic impedance lead wire and a thoracic impedance lead Interface (ICG), and transmits the amplified and conditioned signals to a corresponding channel of the acquisition unit;
the acquisition unit is connected with the main control unit.
Preferably, the passband of the electrocardiosignal isolation, amplification and conditioning module is 0.1-100 Hz, and the amplification factor is 500-1000 times and is adjustable; the passband of the heart sound signal isolation, amplification and conditioning module is 0.5-1000 Hz, and the amplification factor is 200-500 times adjustable; the passband of the thoracic impedance signal isolation, amplification and conditioning module is 0.25-40 Hz, and the amplification factor is 500-1000 times adjustable; the excitation current of the chest impedance signal excitation module is Ipp <6mA, and the excitation frequency is 40-100 kHz and is adjustable.
Preferably, the control box is in communication connection with the main control unit through a USB interface and a USB connecting line of the acquisition unit.
Preferably, the main control unit can adopt an industrial control computer or a PC host.
Preferably, the thoracic impedance signal stimulation module comprises a signal generating circuit and a voltage-current converting circuit.
Preferably, the thoracic impedance signal isolation, amplification and conditioning module comprises an amplifying circuit, a high-pass filter, a low-pass filter and a differentiating circuit.
Preferably, the electrocardiosignal isolation, amplification and conditioning module comprises an amplifying circuit, a high-pass filter, a low-pass filter and a power isolation module.
Preferably, the heart sound signal isolation, amplification and conditioning module comprises an amplifying circuit, a high-pass filter and a low-pass filter.
The beneficial effects of the utility model reside in that:
(1) The utility model discloses a portable design helps adapting to the application demand of different clinical scenes.
(2) The utility model discloses a to the integrated design and the shielding processing of control box, make the system realize better calibration, have higher interference killing feature to reach higher precision.
(3) The utility model discloses a synchronous detection and comprehensive utilization of chest impedance signal, electrocardiosignal and heart sound signal help carrying out the comprehensive evaluation to the heart electro-mechanical characteristics of measurand.
(4) The utility model discloses can carry out playback and waveform display with chest impedance signal, electrocardiosignal and heart sound signal data, case history management, patient information inquiry, the calculation and the detection of heart hemodynamic parameter and electrophysiological parameter, remote detection and consultation.
(5) The testing record of the tested person can be stored in the hard disk of the utility model for a long time, and can be transcribed to other media for permanent storage.
(6) The utility model discloses the networking function of accessible computer realizes remote detection, diagnosis and consultation by tester's cardiac function.
(7) Simple structure and lower cost.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the specification which follows.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings, wherein:
fig. 1 is a structural block diagram of the portable noninvasive cardiac function detecting analyzer of the present invention;
FIG. 2 is a detailed circuit structure diagram of the thoracic impedance signal isolation, amplification and conditioning module and the thoracic impedance signal excitation module;
fig. 3 is a specific circuit structure diagram of the electrocardiosignal amplifying and conditioning module.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples can be combined with each other without conflict.
Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the invention, the figures are shown in schematic form and not in pictorial form; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 3, fig. 1 shows a portable cardiac function testing analyzer, which mainly comprises a main control unit, a control box (including an acquisition unit, an electrocardiograph signal isolation, amplification and conditioning module, a heart sound signal isolation, amplification and conditioning module, a chest impedance signal isolation, amplification and conditioning module, and a chest impedance signal excitation module), a touch screen display, and a power module. Wherein, the acquisition unit is connected with the main control unit. The electrocardio-electrode is connected with the electrocardio-signal isolating, amplifying and conditioning module through an electrocardio-lead line and an electrocardio-lead interface (ECG), and transmits the amplified and conditioned signals to a corresponding channel of the acquisition unit; the heart sound sensor is connected with the heart sound signal isolation, amplification and conditioning module through a heart sound sensor interface (PCG), and transmits the amplified and conditioned signals to a corresponding channel of the acquisition unit; the thoracic impedance electrode is connected with the thoracic impedance signal isolation, amplification and conditioning module and the thoracic impedance signal excitation module through a thoracic impedance lead wire and a thoracic impedance lead Interface (ICG), and transmits the amplified and conditioned signals to a corresponding channel of the acquisition unit. The main control unit processes, extracts and comprehensively analyzes the thoracic impedance signal, the electrocardio signal and the heart sound signal to obtain the cardiac hemodynamic index of the tested person. The intelligent mobile phone has the advantages of portability, high precision, strong anti-interference capability, convenience in upgrading, low cost, high intelligent degree and the like, and has a good application prospect.
Example 1:
the circuit structure of the thoracic impedance signal isolation, amplification and conditioning module and the thoracic impedance signal excitation module is shown in fig. 2.
The chest impedance signal excitation module is a sine wave signal generation circuit with the frequency of 50kHz and the amplitude of 1V generated by a singlechip STM32F407, a constant current source with the output signal of 50kHz and the peak value of 6mA is output through a V-I conversion circuit consisting of AD844 and AD829, and an excitation current signal is output through an ICG interface, a chest impedance lead wire and a chest impedance electrode.
Signals collected by the thoracic impedance electrode are input into a preamplifier through a thoracic impedance lead wire and an ICG interface, a basic impedance voltage signal can be obtained after detection and filtering of a half-wave detection circuit, thoracic impedance change signals are obtained after primary amplification, RC high-pass filtering, active low-pass filtering, AD620 secondary amplification and active low-pass filtering of the detected signals, and impedance differential signals can be obtained through conversion of an LM118 differential circuit. The amplified and conditioned basic impedance signal, thoracic impedance change signal and differential signal are input into the acquisition unit, converted into digital signals of all signals, and transmitted to the main control unit through the USB interface.
Example 2:
the specific circuit structure of the electrocardiosignal amplifying and conditioning module is shown in fig. 3. After being picked up by an electrocardio electrode, electrocardio signals are input into an instrument amplifier AD620 through an electrocardio lead wire and an ECG interface for preamplification, and after being subjected to RC high-pass filtering, secondary amplification, active low-pass filtering, an ISO124 power isolation module and active low-pass filtering again, the electrocardio signals are input into an acquisition unit, converted into digital signals and transmitted to a main control unit through a USB interface.
Example 3:
signals collected by the heart sound sensor pass through the PCG interface, are converted into digital signals after pre-amplification, high-pass filtering, secondary amplification and low-pass filtering, and are transmitted to the main control unit through the USB interface.
Example 4:
the main control unit adopts an industrial control computer or a PC host. The main control unit synchronously processes the chest impedance signal, the electrocardio signal and the heart sound signal obtained through the USB port, and displays related signal waveforms on the touch display; and further extracting signal characteristics, obtaining the hemodynamic parameters reflecting the cardiac function of the testee by using the hemodynamic parameter calculation model, and displaying the hemodynamic parameters on a touch display for further use by a doctor.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (5)
1. A portable cardiac function noninvasive detection analyzer comprises an acquisition device and a main control unit; the device is characterized by also comprising a control box connected between the acquisition device and the main control unit;
the acquisition device comprises an electrocardio electrode, a heart sound sensor and a thoracic impedance electrode; the electrocardio-electrode, the heart sound sensor and the thoracic impedance electrode are respectively connected with the control box; the control box converts electrocardiosignals acquired by the electrocardio-electrodes, heart sound signals acquired by the heart sound sensor and thoracic impedance signals acquired by the thoracic impedance electrodes into digital signals, and transmits the digital signals to the main control unit for synchronous processing to finally obtain a detection result;
the control box comprises an acquisition unit, an electrocardiosignal isolation, amplification and conditioning module, a heart sound signal isolation, amplification and conditioning module, a chest impedance signal isolation, amplification and conditioning module and a chest impedance signal excitation module; the electrocardiosignal isolation, amplification and conditioning module comprises an amplifying circuit, a high-pass filter, a low-pass filter and a power isolation module; the heart sound signal isolation, amplification and conditioning module comprises an amplifying circuit, a high-pass filter and a low-pass filter; the thoracic impedance signal excitation module comprises a signal generation circuit and a voltage-current conversion circuit; the thoracic impedance signal isolation, amplification and conditioning module comprises an amplifying circuit, a high-pass filter, a low-pass filter and a differentiating circuit;
the electrocardio-electrode is connected with the electrocardiosignal isolation, amplification and conditioning module through an electrocardio lead wire and an electrocardio lead interface, and transmits the amplified and conditioned signals to a corresponding channel of the acquisition unit;
the heart sound sensor is connected with the heart sound signal isolation, amplification and conditioning module through a heart sound sensor interface and transmits amplified and conditioned signals to corresponding channels of the acquisition unit;
the thoracic impedance electrode is connected with the thoracic impedance signal isolation, amplification and conditioning module and the thoracic impedance signal excitation module through a thoracic impedance lead wire and a thoracic impedance lead interface, and transmits the amplified and conditioned signals to corresponding channels of the acquisition unit;
the acquisition unit is connected with the main control unit.
2. The portable noninvasive cardiac function detecting and analyzing instrument of claim 1, wherein the passband of the isolated, amplified and conditioned electrocardiosignal module is 0.1-100 Hz, and the amplification factor is 500-1000 adjustable; the passband of the heart sound signal isolation, amplification and conditioning module is 0.5-1000 Hz, and the amplification factor is adjustable within 200-500 times; the passband of the thoracic impedance signal isolation, amplification and conditioning module is 0.25-40 Hz, and the amplification factor is adjustable within 500-1000 times; the excitation current of the chest impedance signal excitation module is Ipp <6mA, and the excitation frequency is 40-100 kHz and is adjustable.
3. The portable noninvasive cardiac function detecting and analyzing instrument of claim 1, wherein the control box is connected to the main control unit through a USB port of the collecting unit and a USB connection line.
4. The portable noninvasive cardiac function detection and analysis instrument of claim 1, wherein the main control unit is an industrial control computer or a PC host.
5. The portable noninvasive cardiac function test analyzer as claimed in any one of claims 1 to 4, further comprising a touch display and a power supply module; the touch display is connected with the main control unit; the power module provides power for the main control unit and the touch display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123251368.XU CN217793041U (en) | 2021-12-22 | 2021-12-22 | Portable cardiac function noninvasive detection analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123251368.XU CN217793041U (en) | 2021-12-22 | 2021-12-22 | Portable cardiac function noninvasive detection analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217793041U true CN217793041U (en) | 2022-11-15 |
Family
ID=83959390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123251368.XU Active CN217793041U (en) | 2021-12-22 | 2021-12-22 | Portable cardiac function noninvasive detection analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217793041U (en) |
-
2021
- 2021-12-22 CN CN202123251368.XU patent/CN217793041U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201755228U (en) | Wireless electrocardio (ECG) and Phonocardiogram (PCG) all-in-one machine | |
| CN100584276C (en) | Electronic auscultation apparatus | |
| CN104363824A (en) | Real time QRS duration measurement in electrocardiogram | |
| CN102462494B (en) | Novel intelligent electrocardiogram test healthcare apparatus | |
| CN201127603Y (en) | Hand-hold electrocardioscanner | |
| CN103027675A (en) | Novel portable three-lead real-time wireless electrocardiogram monitoring system and analyzing method | |
| CN101422362A (en) | Wireless cardiac bioelectricity monitoring system with motion artifact elimination function | |
| CN105796124B (en) | Mobile cardiophony system and method based on Internet of Things | |
| CN106667436A (en) | Sleep diagnosis method and system | |
| CN104188683A (en) | Multifunctional intelligent stethoscope capable of displaying, storing and transmitting electrocardiograph signals | |
| CN103371814A (en) | Remote wireless electrocardiograph monitoring system and feature extraction method on basis of intelligent diagnosis | |
| Mukti et al. | Performance analysis of twelve lead ECG based on delivery distance using bluetooth communication | |
| CN110731764A (en) | pulse detection system | |
| US20090118597A1 (en) | Neural Signal Processing | |
| CN201894645U (en) | Novel intelligent electrocardiogram test healthcare apparatus | |
| CN102813513A (en) | Non-invasive intracranial pressure measurement method and measurement instrument | |
| CN217793041U (en) | Portable cardiac function noninvasive detection analyzer | |
| CN110638482B (en) | Real-time monitoring system for bowel sound and abdominal pressure | |
| CN211484546U (en) | Intelligent electrocardiogram blood pressure instrument | |
| CN105232041A (en) | Measuring device for electrical characteristic distribution of human body surface, data terminal and method | |
| CN106725438A (en) | Without conducting wire standard cardioelectric patient monitor | |
| CN105054961A (en) | Portable electrocardio and heart sound signal collection equipment | |
| CN204500772U (en) | Portable ultraphonic monitoring one diagnostic device | |
| Çelebi | Portable ECG monitoring device design based on ARDUINO | |
| CN204246125U (en) | A kind of electro cardio signal workstation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |