CN204671158U - Based on sleep-respiratory state signal collecting equipment and the monitoring system of bio-impedance - Google Patents

Abstract

The utility model belongs to the technical field of biomedical monitoring, and in particular discloses a sleep breathing state signal acquisition device and a monitoring system based on biological impedance. The signal acquisition device includes a signal acquisition unit, a processing control unit, a data storage unit, and a wireless communication unit, wherein the signal acquisition unit includes at least two electrodes in contact with the chest of a human body, a chest impedance acquisition module connected to the electrodes, and The electrodes are connected to the heart rate acquisition module and the snore acquisition module. Therefore, this solution collects signal data separately and synchronously through three channels, uses bio-impedance-based technology to obtain chest impedance and heart rate signals and combines snoring audio signals to monitor sleep breathing status, and uses wireless signal transmission to avoid the difficulty of connecting wires on patients. Problems such as falling asleep or shallow sleep, easy to wake up at night, etc.; it has the advantages of being simple, cheap, easy to wear, and suitable for home use.

Description

Sleep breathing state signal acquisition equipment and monitoring system based on bioimpedance

technical field

The utility model belongs to the technical field of biomedical monitoring, in particular to a sleep breathing state signal acquisition device and a monitoring system based on biological impedance.

Background technique

Bioimpedance technology is a non-invasive detection technology that uses the electrical characteristics of biological tissues and organs to extract human physiological and pathological information. Different human tissues and organs have unique bioimpedance characteristics, and changes in the state or function of tissues and organs will also be accompanied by corresponding changes in bioimpedance characteristics. For example, in the prior art, the degree of fatigue of the diaphragm is divided into different types based on the principle that the degree of fatigue of the diaphragm is related to the degree of synchronization between the peaks of the chest respiratory electrical impedance signal and the peak of the abdominal respiratory electrical impedance signal. Bio-impedance technology has the advantages of non-invasive and non-destructive, convenient for long-term real-time monitoring and low cost in clinical medicine, which makes bio-impedance technology have great potential and value in the field of clinical medicine or medical care.

The monitoring of sleep apnea is directly related to the research of sleep diseases, so sleep apnea monitoring has become a topic of great concern in sleep medicine. In sleep disorders, sleep apnea refers to a sleep disorder in which breathing stops during sleep, specifically, more than 30 apnea occurs during 7 consecutive hours of sleep, and each time the air flow is stopped for more than 10s (including 10s), or the average sleep time per hour The number of times of apnea and hypopnea (respiratory disorder index) exceeds 5 times, which causes clinical syndrome of chronic hypoxemia and hypercapnia. It can be divided into central type, obstructive type and mixed type. Among them, obstructive sleep apnea (Obstructive sleep apnea-hypopnea syndrome, OSAHS) is that the soft tissue near the throat relaxes during sleep, resulting in narrowing or even obstruction of the upper airway, resulting in apnea; central sleep apnea-hypopnea syndrome (Central sleep apnea-hypopnea syndrome) , OSAHS), is related to the dysfunction of the central nervous system that controls breathing, and temporarily loses the central nervous drive of respiratory function. Abdominal breathing exercise; and a mixture of the above two. According to statistics, the number of people with respiratory and sleep disorders accounts for 2% to 4% of the total population, and this number has a clear upward trend. Sleep Apnea Hypopnea Syndrome (Sleep Apnea Hypopnea Hypopnea Syndrome) Syndrome, SAHS). Early and reasonable diagnosis and treatment of the above-mentioned sleep-disordered breathing can improve the quality of life of patients and prevent the occurrence of various complications. Therefore, the monitoring of sleep apnea is the first step in the prevention and treatment of sleep apnea.

A variety of sleep apnea monitoring methods have been used clinically. For example: polysomnography monitor PSG, which is the gold standard for diagnosing sleep apnea hypopnea syndrome. It records and analyzes sleep through EEG, eye movement and electromyography, while monitoring the patient's respiration, limb movement and blood pressure. Therefore, the advent of PSG has decisive significance for sleep research. Although the sleep breathing detection technology based on PSG can accurately detect the abnormal phenomenon of breathing, because this detection method requires the patient to wear a mask, chest belt and more electrodes, it has a great physiological and psychological load on the patient, and is prone to " The "first night effect" affects the results of sleep monitoring; moreover, the operation of the instrument is complicated and the detection cost is expensive. At present, there are not many professional institutions for the diagnosis of breathing and sleep disorders, and patients need to queue for a long time to receive the examination; patients are in an unfamiliar environment, connected to multiple wires on their bodies, difficult to fall asleep or sleep lightly, and easy to wake up at night, which makes the experiment fail or the experiment The results are biased. In addition, in order to help doctors provide diagnostic references or formulate treatment plans, and facilitate patients' initial screening, how to conveniently and effectively monitor sleep breathing status has become a new market demand for patients with sleep apnea.

Utility model content

In view of the deficiencies in the above-mentioned prior art, the purpose of this utility model is to provide a simple and easy-to-use bio-impedance-based sleep breathing state signal acquisition device suitable for personal or family screening.

In order to achieve the above object, the technical scheme adopted in the utility model is as follows:

A device for collecting signals of sleep breathing state based on bioimpedance, comprising:

The signal acquisition unit includes at least two electrodes in contact with the chest of the human body, a chest impedance acquisition module connected to the electrodes, a heart rate acquisition module connected to the electrodes, and a snore acquisition module.

The processing control unit is respectively connected with the chest impedance acquisition module, the heart rate acquisition module and the snoring acquisition module, and is used to convert the acquired signal into a digital signal and control to issue a prompt or warning to the measured object under normal or abnormal conditions;

A data storage unit, connected to the processing control unit, for storing the digital signal data converted by the processing control unit;

A wireless communication unit, connected to the data storage unit, for wirelessly transmitting digital signal data to an external terminal;

In an embodiment of the utility model, the signal acquisition device further includes:

LED lights, connected to the processing control unit, used to display the working status and power status of the signal acquisition equipment;

an output interface, connected to the data storage unit, for wired output of collected data;

The equipment casing is used to accommodate the protection signal acquisition unit, the processing control unit, the data storage unit, the wireless communication unit and the power supply unit;

The plug port is connected with the chest impedance acquisition module and the heart rate acquisition module.

In an embodiment of the present invention, the signal acquisition device further includes a fixing clip, the fixing clip is arranged on the surface of the device shell, and is used to fix the signal acquisition device when the human body is in a state of sleep and breathing.

In an embodiment of the present utility model, the electrodes are excitation electrodes or collection electrodes.

Further, the output interface and the plug-in port are arranged on the same side surface of the device casing.

In an embodiment of the present invention, the electrodes are installed on the electrode connector at one end of the wire, and the other end of the wire is provided with a connector to connect with the plug-in ports of the chest impedance acquisition module and the heart rate acquisition module.

In an embodiment of the present invention, the integrated lead wire in which the electrodes are connected with the wire is connected to the plug-in port of the chest impedance acquisition module and the heart rate acquisition module.

In an embodiment of the present invention, the front end of the snoring sound collection module is a microphone, and the microphone is located on a surface of the device casing.

In view of the deficiencies in the above-mentioned prior art, the purpose of this utility model is to provide a simple and easy-to-use bio-impedance-based sleep breathing state signal acquisition device suitable for personal or family screening.

In order to achieve the above object, the utility model adopts a technical scheme as follows again:

A monitoring system comprising the bio-impedance-based sleep breathing state signal acquisition device described in the above technical solution, further comprising a terminal processing device wirelessly connected to the signal acquisition device.

In an embodiment of the present invention, the terminal processing device includes:

The data analysis module is wirelessly connected with the receiving signal acquisition device, and is used to receive and collect digital data and perform matching analysis on the chest impedance data and heart rate data in the collected digital data, and use the snoring data as sleep state reference data at the same time;

The real-time data display module is connected with the data analysis module and displays the variation curve of chest impedance, heart rate and snoring sound;

The storage and playback module is connected to the real-time data display module and stores the collected data processing results to facilitate historical viewing.

After adopting the above-mentioned structure, the utility model has the advantages compared with the prior art: the technical solution uses bio-impedance technology to obtain chest impedance and heart rate signals and combines snoring audio signals to monitor the sleep breathing state, and at the same time uses wireless signal transmission It avoids the problems that the patient is not easy to fall asleep or sleep lightly, and is easy to wake up at night due to the connecting wires on the patient's body; the sleep breathing state monitoring system is not only simple, cheap, easy to wear, suitable for home use, but also does not affect falling asleep, and the test environment is daily real sleep environment, so as to achieve real-time monitoring of the patient's real daily sleep breathing state without being affected by actions such as changes in sleep posture.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is a schematic structural frame diagram of a sleep breathing state signal acquisition device according to Embodiment 1 of the present invention;

Fig. 2 is a front view of the sleep breathing state signal acquisition device according to Embodiment 1 of the present utility model;

Fig. 3 is a side view of the sleep breathing state signal acquisition device according to Embodiment 1 of the present utility model;

4 is a schematic structural diagram of the lead wires of the sleep breathing state signal acquisition device according to Embodiment 1 of the present invention;

Fig. 5 is a top view of the sleep breathing state signal acquisition device (without lead wires inserted) according to Embodiment 1 of the present utility model;

Fig. 6 is a schematic diagram of the connection relationship between the sleep breathing state monitoring system and the human body according to the second embodiment of the utility model;

Fig. 7 is a schematic structural frame diagram of the sleep breathing state monitoring system according to the second embodiment of the present invention;

Fig. 8 is a graph showing changes in thoracic impedance (breathing) of the sleep breathing state monitoring system according to Embodiment 2 of the present invention;

Fig. 9 is a curve diagram of heart rate variation of the sleep breathing state monitoring system according to the second embodiment of the present invention;

Fig. 10 is a decibel curve of snoring sound of the sleep breathing state monitoring system according to the second embodiment of the present invention.

Reference signs:

100-signal acquisition equipment, 101-signal acquisition unit, 1011, 1012-electrodes, 1011', 1012'-electrode connectors, 1013-thoracic impedance acquisition module, 1014-heart rate acquisition module, 1015-snoring sound acquisition module, 1016-plug connector , 1017-microphone, 102-processing control unit, 103-data storage module, 104-wireless communication unit, 105-LED light, 106-output interface, 107-device shell, 108-fixing clip, 109-plug port, 200 - terminal processing equipment, 201 - data analysis module, 202 - real-time data display module, 203 - storage and playback module.

Detailed ways

The sleep breathing state signal acquisition equipment and monitoring system described in the following embodiments of the present invention mainly use bio-impedance technology to acquire sleep breathing monitoring signals, and at the same time collect snoring sounds as reference signals, so as to detect apnea time in the human sleep state , classification diagnosis of sleep apnea syndrome and sleep quality assessment, especially suitable for self-monitoring of sub-healthy people. The following descriptions are only preferred embodiments of the present utility model, and do not therefore limit the protection scope of the present utility model.

Embodiment one:

As shown in FIG. 1 , the embodiment of the present invention provides a bioimpedance-based sleep breathing state signal acquisition device 100 , including a signal acquisition unit 101 , a processing control unit 102 , a data storage unit 103 and a wireless communication unit 104 .

Wherein, the signal acquisition unit 101 includes at least two electrodes 1011 and 1012 in contact with the human chest, a chest impedance acquisition module 1013 connected to the electrodes 1011 or 1012, a heart rate acquisition module 1014 connected to the electrodes 1011 or 1012, and Snoring sound acquisition module 1015; in the embodiment of the present invention, the two electrodes 1011 and 1012 can be excitation electrodes and acquisition electrodes, and the method of dual electrodes excitation and acquisition at the same time is adopted. The processing control unit 102 is respectively connected with the chest impedance acquisition module 1013 , the heart rate acquisition module 1014 and the snore acquisition module 1015 for converting the acquired signals into digital signals. The data storage unit 103 is connected to the processing control unit 102 and used for storing the digital signal data converted by the processing control unit. The wireless communication unit 104 is connected to the data storage unit 103 for wirelessly transmitting digital signal data to an external terminal. Each of the above-mentioned units is powered by a power supply unit (not shown in the figure), such as an external power supply or a built-in battery. In order to facilitate switching on and off, a power switch connected to the power supply unit can be provided.

As shown in FIG. 2 and FIG. 3 , the signal collection device 100 also includes an LED light 105 , an output interface 106 , a device casing 107 and a plug port 109 .

Wherein, the LED light 105 is connected with the processing control unit 102 for displaying the working state and power state of the signal collecting device 100 . When the LED light 105 is displayed in red, it means that the signal acquisition device 100 is in an insufficient power state, prompting the user to charge or replace the battery; when the LED light 105 is displayed in green, it means that the signal acquisition device 100 has sufficient power and is in normal state, prompting the user to monitor the breathing state of normal sleep; when the LED light 105 is displayed in yellow, it indicates that the electrode of the signal acquisition device 100 is not in good contact with the human body, prompting the user to diagnose or readjust the electrode contact with the human body if there is a fault in the electrode contact. Human contact parts.

In addition, in order to make it easier for doctors to understand the patient's usual sleep state, the output interface 106 is connected to the data storage unit 103 for wired output of collected data; Processing control unit 102 , data storage unit 103 and wireless communication unit 104 . In the embodiment of the present utility model, the signal acquisition unit 101, the processing control unit 102, the data storage unit 103 and the wireless communication unit 104 are integrated on the circuit board; the plug port 109 is connected with the chest impedance acquisition module 1013 and The heart rate acquisition module 1014 is connected. As shown in FIG. 5 , in order to reduce the interaction between acquisition and charging, in the embodiment of the present invention, the output interface 106 and the plug port 109 are arranged on the same side surface of the device casing 107.

As shown in Figure 2, in the embodiment of the present utility model, the signal acquisition device 100 also includes a fixing clip 108, and the fixing clip 108 is arranged on the surface of the device casing 107, and is used to fix the signal acquisition when the human body is in a sleep breathing state. device 100.

As shown in Figure 4, the electrode 1011 (or 1012) is installed on the electrode connector 1011' (or 1012') at one end of the wire, and the other end of the wire is provided with a plug connector 1016 and the chest impedance acquisition module 1013 and the heart rate acquisition module. The socket port 109 of 1014 is connected. In addition, the electrodes 1011 (or 1012 ) are connected with the wires to form an integrated lead wire that is connected to the insertion port 109 of the chest impedance acquisition module 1013 and the heart rate acquisition module 1014 . The front end of the snoring sound collection module 1015 is a microphone 1017 , and the microphone 1017 is located on a surface of the device casing 107 .

Embodiment two:

As shown in Fig. 6 and Fig. 7, the embodiment of the utility model provides a monitoring system including the sleep breathing state signal acquisition device based on bioimpedance described in the above embodiment, and also includes a wireless connection with the signal acquisition device 100 The terminal processing device 200 of . In the embodiment of the present utility model, the terminal processing device 200 includes a data analysis module 201 , a real-time data display module 202 and a storage and playback module 203 .

Wherein, the data analysis module 201 is wirelessly connected with the receiving signal acquisition device 100, and is used for receiving and collecting digital data and performing matching analysis on the chest impedance data and heart rate data in the collected digital data, while using the snoring data as sleep state reference data and Especially as a reference basis for apnea and hypopnea state; the real-time data display module 202 is connected with the data analysis module 201 and displays the change curve of chest impedance, heart rate and snoring sound; the storage and playback module 203 is connected with the real-time data The display module 202 is connected and stores the collected data processing results to facilitate historical viewing.

Since the acquisition method of the prior art is to extract the respiratory signal from the ECG signal in the single-electrode mode, the embodiment of the present invention mainly uses the three-channel structure of the chest impedance acquisition module, the heart rate signal acquisition module and the snoring acquisition unit in the signal acquisition unit , separately and synchronously collect signal data of respiratory impedance, heart rate and snoring, as shown in FIGS. 8 to 10 . The monitoring system can not only be used as an important reference information for detecting OSAHS, but also for distinguishing different OSAHS categories.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and application scope, and the content of this specification should not be understood as Limitations on the Invention.

Claims (10)

1. A sleep breathing state signal acquisition device (100) based on bioimpedance, comprising: A signal acquisition unit (101), comprising at least two electrodes (1011, 1012) in contact with the chest of a human body, a chest impedance acquisition module (1013) connected to the electrodes (1011 or 1012), and a chest impedance acquisition module (1013) connected to the electrodes (1011 or 1012) ) to connect the ECG acquisition module (1014) and the snoring acquisition module (1015); The processing control unit (102) is respectively connected with the chest impedance acquisition module (1013), the ECG acquisition module (1014) and the snoring acquisition module (1015), and is used to convert the acquired signal into digital signal data and control it in normal Or send prompts or warnings to the measured object under abnormal circumstances; A data storage unit (103), connected to the processing control unit (103), for storing the digital signal data converted by the processing control unit; A wireless communication unit (104), connected to the data storage unit (103), is used for wirelessly transmitting digital signal data to an external terminal. 2. the sleep breathing state signal acquisition device based on bioimpedance according to claim 1, is characterized in that, described signal acquisition device (100) also comprises: LED lights (105), connected to the processing control unit (102), used to display the working status and power status of the signal acquisition device (100); An output interface (106), connected to the data storage unit (103), for wired output of collected data; The equipment casing (107), used to accommodate the protection signal acquisition unit (101), the processing control unit (102), the data storage unit (103), the wireless communication unit and the power supply unit (105); The plug port (109) is connected with the chest impedance acquisition module (1013) and the ECG acquisition module (1014). 3. The sleep breathing state signal acquisition device based on bioimpedance according to claim 1 or 2, characterized in that, the signal acquisition device (100) also includes a clamp (108), and the clamp (108) is set On the surface of the device casing (107), it is used to fix the signal acquisition device (100) when the human body is in a sleep breathing state. 4. The device for collecting signals of sleep breathing state based on bioimpedance according to claim 1, characterized in that, the electrodes (1011 or 1012) are excitation electrodes or collection electrodes. 5. The sleep breathing state signal acquisition device based on bioimpedance according to claim 2, characterized in that, the output interface (106) and the plug port (109) are arranged on the same side of the device casing (107) surface. 6. The sleep breathing state signal acquisition device based on bioimpedance according to claim 1, characterized in that, the electrode (1011 or 1012) is installed on the electrode joint (1011 ' or 1012 ') at one end of the wire, and the wire is another One end is provided with a plug joint (1016) to connect with the plug port (109) of the chest impedance acquisition module (1013) and the electrocardiogram acquisition module (1014). 7. The sleep breathing state signal acquisition device based on bio-impedance according to claim 1, characterized in that, said electrode (1011 or 1012) is connected with a wire to form an integral integrated lead wire and said chest impedance acquisition module (1013) is connected with the plug port (109) of the ECG acquisition module (1014). 8. the sleep breathing state signal acquisition device based on bioimpedance according to claim 1, is characterized in that, the acquisition front-end of described snoring acquisition module (1015) is microphone (1017), and this microphone (1017) is positioned at equipment shell ( 107) of a surface. 9. A monitoring system comprising the sleep breathing state signal acquisition device based on bioimpedance according to any one of claims 1 to 8, further comprising a terminal processing device (200) wirelessly connected to the signal acquisition device (100) ). 10. The sleep breathing state monitoring system based on bioimpedance according to claim 9, wherein the terminal processing device (200) comprises: The data analysis module (201) is wirelessly connected to the receiving signal acquisition device (100), and is used to receive and collect digital data and perform matching analysis on the chest impedance data and heart rate data in the collected digital data, while using the snoring data as sleep state reference data ; A real-time data display module (202), which is connected with the data analysis module (201) and displays the variation curve of chest impedance, heart rate and snoring sound; The storage and playback module (203) is connected to the real-time data display module (202) and stores the collected data processing results to facilitate historical viewing.