CN114159032A - Sleep apnea monitoring device and method based on temperature and humidity sensor - Google Patents
Sleep apnea monitoring device and method based on temperature and humidity sensor Download PDFInfo
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4806—Sleep evaluation
- A61B5/4818—Sleep apnoea
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0816—Measuring devices for examining respiratory frequency
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/082—Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
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- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3601—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of respiratory organs
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- A—HUMAN NECESSITIES
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- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/029—Humidity sensors
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Abstract
The invention belongs to the technical field of signal monitoring, and provides a sleep apnea syndrome monitoring device and method based on a temperature and humidity sensor. The device comprises a temperature and humidity sensor, a temperature and humidity sensor and a control module, wherein the temperature and humidity sensor is used for acquiring temperature and humidity signals of respiratory gas of a monitored person; the signal front-end processing module is used for receiving the temperature and humidity signals transmitted by the temperature and humidity sensor and carrying out amplification and filtering processing; the monitoring terminal processing module is used for calculating the respiratory frequency and the apnea time of the monitored person according to the received signals; when the apnea time is greater than the respiration period and exceeds a set time threshold, judging that the monitored person has sleep apnea and immediately activating an electrical stimulation module; the electrical stimulation module is used for stimulating the human middle part of the monitored person; the monitoring terminal processing module is also used for determining the severity of the illness of the monitored person according to the number of times of sleep apnea of the monitored person in a set time period, and further searching a matched treatment scheme from the historical treatment database.
Description
Technical Field
The invention belongs to the technical field of signal monitoring, and particularly relates to a sleep apnea syndrome monitoring device and method based on a temperature and humidity sensor.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Sleep apnea refers to the clinical syndrome of chronic hypoxemia and hypercapnia caused by apnea occurring more than 30 times during 7h continuous sleep, airflow interruption more than 10s (including 10s) each time, or average hypoventilation times per hour (respiratory disturbance index) more than 5 times. The clinical manifestation of the disease is snoring, and other diseases such as myocardial infarction, hypertension, myocardial anoxia, stroke and other complications are usually accompanied, so that the sick people can not enter deep sleep after the sleep branches are broken, and can not have sufficient rest even if the sleep time is long, thereby causing the patients to have insufficient daytime mental capacity, drowsiness, headache, and decline of memory, attention and judgment, and causing serious adverse effects on physical and mental health of the people. Therefore, it is necessary to detect obstructive sleep apnea hypopnea syndrome.
The inventors have found that the following problems exist with conventional sleep apnea monitoring techniques: (1) various sensors are needed to be used on a patient to monitor various physiological signals, and then a doctor diagnoses the physiological signals through the acquired signals, so that the workload of the doctor is very large, the cost is high, and the action of the patient is limited due to the fact that the patient needs to use the various sensors to acquire the physiological signals, so that the patient is very inconvenient; (2) treatment for sleep apnea patients is mostly based on doctor experience without considering sleep apnea monitoring data, which may result in failure to match patients, resulting in poor treatment.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a sleep apnea monitoring device and method based on a temperature and humidity sensor, which only monitors sleep apnea based on temperature and humidity signals of respiratory gas of a monitored person, and considers monitoring data of the sleep apnea, so that a treatment scheme matched with a patient is provided, and matching accuracy of the treatment scheme is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a first aspect of the invention provides a temperature and humidity sensor based sleep apnea monitoring device comprising:
the temperature and humidity sensor is used for acquiring temperature and humidity signals of respiratory gas of a monitored person;
the signal front-end processing module is used for receiving the temperature and humidity signals transmitted by the temperature and humidity sensor, amplifying and filtering the temperature and humidity signals, and transmitting the temperature and humidity signals to the monitoring terminal processing module;
the monitoring terminal processing module is used for calculating the respiratory frequency and the apnea time of the monitored person according to the received signals; when the apnea time is greater than the respiration period and exceeds a set time threshold, judging that the monitored person has sleep apnea and immediately activating an electrical stimulation module;
the electrical stimulation module is used for receiving the activation signal and stimulating the human middle part of the monitored person;
the monitoring terminal processing module is also used for determining the severity of the illness of the monitored person according to the number of times of sleep apnea of the monitored person in a set time period, and searching a matched treatment scheme from the historical treatment database based on the severity so as to send the treatment scheme to the corresponding medical care person terminal.
A second aspect of the present invention provides a method for monitoring sleep apnea based on a temperature and humidity sensor, comprising:
receiving the temperature and humidity signals of the respiratory gas of the monitored person after amplification and filtering;
calculating the respiratory frequency and the apnea time of the monitored person;
when the apnea time is greater than the respiration period and exceeds a set time threshold, judging that the monitored person has sleep apnea and immediately sending activation to an electrical stimulation module, and stimulating the middle part of the monitored person by the electrical stimulation module;
determining the severity of the monitored person suffering from the sleep apnea according to the number of times of the monitored person within a set time period, and searching a matched treatment scheme from a historical treatment database based on the severity so as to send the treatment scheme to a corresponding medical care terminal.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the sleep apnea monitoring device and method based on the temperature and humidity sensor, only temperature and humidity signals of breathing gas of a monitored person are collected, a large number of monitoring elements are saved, the temperature and humidity signals are amplified and filtered by the signal front-end processing module and then transmitted to the monitoring terminal processing module to automatically judge whether the monitored person suffers from sleep apnea, when the sleep apnea occurs, the electrical stimulation module is immediately activated, and the electrical stimulation module stimulates the middle part of the monitored person, so that the purposes of monitoring and first aid are achieved;
(2) according to the sleep apnea monitoring device and method based on the temperature and humidity sensor, monitoring data of sleep apnea are considered, the severity of illness of a monitored person is determined according to the number of times of sleep apnea of the monitored person in a set time period, a matched treatment scheme is searched from a historical treatment database based on the severity, a personalized treatment scheme matched with the patient is provided, and matching accuracy and treatment effect of the treatment scheme are improved.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic diagram of a sleep apnea monitoring device based on a temperature and humidity sensor according to an embodiment of the present invention;
fig. 2 is a flowchart of a sleep apnea monitoring method based on a temperature and humidity sensor according to an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1, the present embodiment provides a sleep apnea monitoring device based on a temperature and humidity sensor, which specifically includes a temperature and humidity sensor, a signal front-end processing module, a monitoring terminal processing module, and an electrical stimulation module.
The specific working principle of each module is given as follows:
(1) temperature and humidity sensor
And the temperature and humidity sensor is used for acquiring temperature and humidity signals of respiratory gas of the monitored person.
In this embodiment, the temperature and humidity sensor is attached to the person under the nose of the monitored person.
Particularly, the temperature and humidity sensor comprises a temperature sensor and a humidity sensor, and has the characteristics of simplicity, easiness in use, small size, sensitivity and durability. The problems of complex and changeable application scene, narrow space and insufficient comfort are solved. The temperature sensor adopts a sensor with small volume, large temperature coefficient, high sensitivity and high response speed to make up the nonlinear problem of thermoelectric characteristics by using a linear compensation circuit.
(2) Signal front-end processing module
And the signal front-end processing module is used for receiving the temperature and humidity signals transmitted by the temperature and humidity sensor, amplifying and filtering the temperature and humidity signals, and transmitting the temperature and humidity signals to the monitoring terminal processing module.
In one or more embodiments, the signal front-end processing module communicates with the monitoring terminal processing module through a wireless transmission module.
The wireless transmission module can be a Wifi module or a Zigbee wireless communication module.
In a specific implementation, the signal front-end processing module comprises a preamplifier, a high-pass filter, a program-controlled amplifier, a low-pass filter, an A/D conversion circuit and a processing chip which are sequentially connected in series.
The processing chip can be realized by a 51-series single chip microcomputer or a data processing chip of other types.
Because the humiture signals received by the front-end processing module are weak, the received humiture signals are amplified and subjected to interference filtering by the signal front-end processing module, and finally converted into digital signals matched with the processing chip, so that the precision of signal processing is improved.
(3) Monitoring terminal processing module
The monitoring terminal processing module is used for calculating the respiratory frequency and the apnea time of the monitored person according to the received signals; and when the apnea time is greater than the respiratory cycle and exceeds a set time threshold, judging that the monitored person has sleep apnea and immediately activating the electrical stimulation module.
In specific implementation, in the monitoring terminal processing module, a temperature and humidity change curve fitting method by a moving average method is adopted to calculate the respiratory frequency and the apnea time of a monitored person. For example: and expressing the collected temperature and humidity signals in an array form, and obtaining an average fitting according to the temperature and humidity signals obtained by sampling time intervals for a set number of times (for example, five times) to obtain a temperature and humidity change curve. And then the breath stopping time is found out according to the temperature and humidity change curve, so that the breath stopping time period is obtained.
In this embodiment, the monitoring terminal processing module is further configured to determine a severity of the monitored person suffering from the sleep apnea according to the number of times that the monitored person suffers from the sleep apnea, and search a matching treatment scheme from the historical treatment database based on the severity, so as to send the matching treatment scheme to the corresponding medical care person terminal.
In the monitoring terminal processing module, the more times of sleep apnea of a monitored person in a set time period, the higher the severity of the sleep apnea.
For example: the severity of sleep apnea can be set at three levels A, B, C;
the grade A is as follows: the number of times of sleep apnea of a monitored person in a set time period (continuous 7h) is 30-35;
the B grade is: the number of times of sleep apnea of a monitored person in a set time period (continuous 7h) is 35-40 times;
the C grade is: the number of times of sleep apnea of the monitored person in the set time period (continuous 7h) exceeds 40 times.
Specifically, the historical treatment database stores the severity and treatment scheme of the sleep apnea in advance.
For example, in the historical treatment database, the treatment regimen for the a-grade is a general treatment: for example, weight loss: dietary control, medication and surgery; the sleeping position changes: sleeping on the side and lifting the bed head; abstain from smoking, avoid taking sedative, etc. The treatment regimen for grade B is drug therapy; the treatment regimen for grade C is either instrumental or surgical.
In one or more embodiments, the monitor terminal processing module is further configured to: receiving the times of sleep apnea occurrence of the monitored person after treatment by the corresponding treatment scheme and transmitted by the monitoring terminal processing module, comparing the times of sleep apnea occurrence of the monitored person in history, and judging the effectiveness of treatment.
In specific implementation, if the number of times of sleep apnea of the monitored person after treatment is less than the number of times of sleep apnea of the monitored person after the treatment, the treatment is judged to be effective; otherwise, judging that the treatment is invalid, and sending a judgment result to the corresponding medical care terminal to correct the treatment scheme.
(4) Electrical stimulation module
And the electrical stimulation module is used for receiving the activation signal and stimulating the human middle part of the monitored person.
The sleep apnea monitoring device based on the temperature and humidity sensor only collects temperature and humidity signals of breathing gas of a monitored person, saves a large number of monitoring elements, and transmits the temperature and humidity signals to the monitoring terminal processing module after being amplified and filtered by the signal front-end processing module to automatically judge whether the monitored person suffers from sleep apnea, immediately activates the electrical stimulation module when the sleep apnea occurs, stimulates the middle part of the monitored person by the electrical stimulation module, and therefore the purposes of monitoring and first aid are achieved.
The sleep apnea monitoring device based on the temperature and humidity sensor considers the monitoring data of the sleep apnea, determines the severity of illness of a monitored person according to the number of times of sleep apnea of the monitored person in a set time period, searches a matched treatment scheme from a historical treatment database based on the severity, provides a personalized treatment scheme matched with the patient, and improves the matching accuracy and treatment effect of the treatment scheme.
Referring to fig. 2, the present embodiment provides a sleep apnea monitoring method based on a temperature and humidity sensor, which specifically includes the following steps:
step 1: receiving the temperature and humidity signals of the respiratory gas of the monitored person after amplification and filtering;
step 2: calculating the respiratory frequency and the apnea time of the monitored person;
and step 3: when the apnea time is greater than the respiration period and exceeds a set time threshold, judging that the monitored person has sleep apnea and immediately sending activation to an electrical stimulation module, and stimulating the middle part of the monitored person by the electrical stimulation module;
and 4, step 4: determining the severity of the monitored person suffering from the sleep apnea according to the number of times of the monitored person within a set time period, and searching a matched treatment scheme from a historical treatment database based on the severity so as to send the treatment scheme to a corresponding medical care terminal.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A sleep apnea monitoring device based on temperature and humidity sensor, characterized by comprising:
the temperature and humidity sensor is used for acquiring temperature and humidity signals of respiratory gas of a monitored person;
the signal front-end processing module is used for receiving the temperature and humidity signals transmitted by the temperature and humidity sensor, amplifying and filtering the temperature and humidity signals, and transmitting the temperature and humidity signals to the monitoring terminal processing module;
the monitoring terminal processing module is used for calculating the respiratory frequency and the apnea time of the monitored person according to the received signals; when the apnea time is greater than the respiration period and exceeds a set time threshold, judging that the monitored person has sleep apnea and immediately activating an electrical stimulation module;
the electrical stimulation module is used for receiving the activation signal and stimulating the human middle part of the monitored person;
the monitoring terminal processing module is also used for determining the severity of the illness of the monitored person according to the number of times of sleep apnea of the monitored person in a set time period, and searching a matched treatment scheme from the historical treatment database based on the severity so as to send the treatment scheme to the corresponding medical care person terminal.
2. The sleep apnea monitoring device based on temperature and humidity sensor as recited in claim 1, wherein the monitor terminal processing module is further configured to: receiving the times of sleep apnea occurrence of the monitored person after treatment by the corresponding treatment scheme and transmitted by the monitoring terminal processing module, comparing the times of sleep apnea occurrence of the monitored person in history, and judging the effectiveness of treatment.
3. The sleep apnea syndrome monitoring device based on the temperature and humidity sensor as claimed in claim 2, wherein in the monitoring terminal processing module, if the number of times of sleep apnea syndrome occurring in the treated monitored person is smaller than the number of times of sleep apnea syndrome occurring in history, the treatment is judged to be effective; otherwise, judging that the treatment is invalid, and sending a judgment result to the corresponding medical care terminal to correct the treatment scheme.
4. The sleep apnea monitoring device based on the temperature and humidity sensor as claimed in claim 1, wherein in the monitoring terminal processing module, a temperature and humidity change curve fitting method by a moving average method is adopted to calculate the respiratory rate and the apnea time of the monitored person.
5. The device for monitoring sleep apnea of claim 1, wherein the historical treatment database stores the severity of sleep apnea and treatment schedule in advance.
6. The sleep apnea monitoring device based on the temperature and humidity sensor as claimed in claim 1, wherein in the monitoring terminal processing module, the more times the monitored person in the set time period has sleep apnea, the higher the severity of sleep apnea.
7. The sleep apnea monitoring device based on the temperature and humidity sensor as recited in claim 1, wherein the signal front-end processing module communicates with the monitoring terminal processing module through a wireless transmission module.
8. The device for monitoring sleep apnea of claim 1, wherein the signal front-end processing module comprises a preamplifier, a high-pass filter, a program-controlled amplifier, a low-pass filter, an A/D conversion circuit and a processing chip which are sequentially connected in series.
9. The sleep apnea monitoring device based on the temperature and humidity sensor as recited in claim 1, wherein the temperature and humidity sensor is affixed to the person under the nose of the monitored person.
10. A sleep apnea monitoring method based on a temperature and humidity sensor is characterized by comprising the following steps:
receiving the temperature and humidity signals of the respiratory gas of the monitored person after amplification and filtering;
calculating the respiratory frequency and the apnea time of the monitored person;
when the apnea time is greater than the respiration period and exceeds a set time threshold, judging that the monitored person has sleep apnea and immediately sending activation to an electrical stimulation module, and stimulating the middle part of the monitored person by the electrical stimulation module;
determining the severity of the monitored person suffering from the sleep apnea according to the number of times of the monitored person within a set time period, and searching a matched treatment scheme from a historical treatment database based on the severity so as to send the treatment scheme to a corresponding medical care terminal.
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