CN215959870U

CN215959870U - Apnea detection system

Info

Publication number: CN215959870U
Application number: CN202121965588.6U
Authority: CN
Inventors: 杜先于; 刘俊
Original assignee: Shenzhen Shuliantianxia Intelligent Technology Co Ltd
Current assignee: Shenzhen Shuliantianxia Intelligent Technology Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-08
Anticipated expiration: 2031-08-19

Abstract

The embodiment of the utility model relates to the technical field of medical equipment, in particular to an apnea detection system. The utility model provides an apnea detection system, which comprises at least two input ports, a selector switch, a signal conversion unit and a control unit, wherein the selector switch is connected with the input ports; the at least two input ports are used for connecting at least one analog signal sensor and/or at least one digital signal sensor; at least two input ports are connected to at least two input ends of the change-over switch respectively, the first end of the signal conversion unit and the first end of the control unit are connected to the output end of the change-over switch respectively, the second end of the signal conversion unit is connected with the second end of the control unit, the signal conversion unit is used for converting analog signals into digital signals and outputting the digital signals to the control unit, the system is connected with different sensors through the at least two input ports, the change-over switch is used for switching connection between different input ends and output ends, the multi-channel sensor can be externally connected to process data simultaneously, and the system is small in size and high in portability.

Description

Apnea detection system

Technical Field

The embodiment of the utility model relates to the technical field of medical equipment, in particular to an apnea detection system.

Background

Sleep apnea syndrome is a sleep disorder in which breathing stops during sleep. The most common cause is upper airway obstruction, often ending with loud snoring, body twitching, or arm whipping. Sleep apnea is accompanied by sleep deficiency, daytime napping, fatigue, bradycardia or arrhythmia and electroencephalogram wakefulness, and in the sleep process, the oral-nasal airflow is completely stopped for more than 10 seconds; hypopnea refers to a reduction in respiratory airflow amplitude of more than 50% from baseline levels, accompanied by a 4% reduction in blood oxygen saturation from baseline levels. The investigation shows that about four million people in China currently suffer from the disease, and the patients are accompanied by the symptoms of easy drowsiness, impatience, hypodynamia, reduced working efficiency and the like, and are easy to suffer from hypertension, coronary heart disease and cerebrovascular disease. Therefore, it is very important to detect and judge apnea during sleep and to perform danger early warning.

At present, a Polysomnography (PSG) detector is used for detecting a patient all night, and is a multi-parameter test detector for sleep research and sleep disease diagnosis. The PSG recorded by the device is used for disease diagnosis and sleep medical research of various sleep medicines related to sleep of a patient or a testee by professional technicians and doctors.

However, the conventional sleep apnea detector is bulky and poor in portability when processing data by external multi-path sensors.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an apnea monitoring device which can be externally connected with multiple sensors for processing data at the same time, and is small in size and high in portability.

The embodiment of the utility model adopts a technical scheme that: an apnea detection system is provided, comprising: the device comprises at least two input ports, a selector switch, a signal conversion unit and a control unit;

the at least two input ports are used for connecting at least one analog signal sensor and/or at least one digital signal sensor, and the analog signal sensor and the digital signal sensor are used for acquiring respiratory data;

at least two input ends of the change-over switch are respectively connected with the at least two input ports, an output end of the change-over switch is respectively connected with a first end of the signal conversion unit and a first end of the control unit, a second end of the signal conversion unit is connected with a second end of the control unit, the change-over switch is used for switching on connection of different input ends and output ends, the signal conversion unit is used for converting an analog signal into a digital signal to be output to the control unit, and the control unit is used for processing the respiration data.

In some embodiments, the output of the diverter switch includes a first output and a second output;

the first output end of the change-over switch is connected with the first end of the signal conversion unit, the second end of the signal conversion unit is connected with the second end of the control unit, and the second output end of the change-over switch is connected with the first end of the control unit.

In some embodiments, the at least two input ports include at least one analog signal input port for connecting to the analog signal sensor and at least one digital signal input port for connecting to the digital signal sensor.

In some embodiments, the signal conversion unit is an analog-to-digital converter.

In some embodiments, the apnea detection system further comprises a communication unit;

the communication unit is connected with the third end of the control unit and used for sending the breathing data to a server or a terminal.

In some embodiments, the communication unit is at least one of a bluetooth module, a WiFi module, a 4G module, and a 5G module.

In some embodiments, the apnea detection system further comprises a memory unit;

the storage unit is connected with the fourth end of the control unit and is used for storing the respiration data.

In some embodiments, the apnea detection system further comprises a reminder unit for reminding the input port whether the correct sensor is accessed.

In some embodiments, the analog signal sensor is at least one of a nasal airflow analog signal sensor, a nasal air pressure analog signal sensor, a chest breathing analog signal sensor, and an abdominal breathing analog signal sensor, and the digital signal sensor is at least one of a nasal airflow digital signal sensor, a nasal air pressure digital signal sensor, a chest breathing digital signal sensor, and an abdominal breathing digital signal sensor.

In some embodiments, the apnea detection system further comprises a battery and a battery management circuit;

the battery is respectively connected with the at least two input ports, the selector switch, the signal conversion unit, the control unit and the battery management circuit, and the battery management circuit is used for controlling charging and discharging of the battery according to the battery condition.

The beneficial effects of the embodiment of the utility model are as follows: the utility model provides an apnea detection system which is different from the prior art, and comprises at least two input ports, a selector switch, a signal conversion unit and a control unit; the at least two input ports are used for connecting at least one analog signal sensor and/or at least one digital signal sensor; at least two input ports are connected to at least two input ends of the change-over switch respectively, the first end of the signal conversion unit and the first end of the control unit are connected to the output end of the change-over switch respectively, the second end of the signal conversion unit is connected with the second end of the control unit, the change-over switch is used for switching on connection of different input ends and output ends, the signal conversion unit is used for converting analog signals into digital signals to be output to the control unit, the system is connected with different sensors through the at least two input ports, and the change-over switch is used for switching connection between different input ends and output ends, data can be processed by externally connecting multiple sensors at the same time, the size is small, and the portability is high.

Drawings

One or more embodiments are illustrated by the accompanying figures in the drawings that correspond thereto and are not to be construed as limiting the embodiments, wherein elements/modules and steps having the same reference numerals are represented by like elements/modules and steps, unless otherwise specified, and the drawings are not to scale.

Fig. 1 is a schematic block diagram of an apnea detecting system according to an embodiment of the present invention;

fig. 2 is a block diagram of another apnea detecting system according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the utility model. All falling within the scope of the present invention.

In order to facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. 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 application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that, if not conflicted, the various features of the embodiments of the utility model may be combined with each other within the scope of protection of the present application. In addition, although the functional blocks are divided in the device diagram, in some cases, the blocks may be divided differently from those in the device. Further, the terms "first," "second," and the like, as used herein, do not limit the data and the execution order, but merely distinguish the same items or similar items having substantially the same functions and actions.

An embodiment of the utility model provides an apnea detecting system, referring to fig. 1, the apnea detecting system 100 includes: at least two input ports 10, a switch 20, a signal conversion unit 30, and a control unit 40. At least two input ports 10 are used to connect at least one analog signal sensor and/or at least one digital signal sensor, and the analog signal sensor and the digital signal sensor are used to collect respiration data. At least two input ends of the switch 20 are respectively connected to the at least two input ports 10, an output end of the switch 20 is respectively connected to a first end of the signal conversion unit 30 and a first end of the control unit 40, a second end of the signal conversion unit 30 is connected to a second end of the control unit 40, the switch 20 is used for switching on connection between different input ends and output ends, the signal conversion unit 30 is used for converting an analog signal into a digital signal to be output to the control unit 40, and the control unit 40 is used for processing the respiration data.

Specifically, the at least two input ports may include a first input port 11 and a second input port 12, the first input port 11 is connected to the first input terminal of the switch 20, the second input port 12 is connected to the second input terminal of the switch 20, the first input port 11 is connected to the first sensor, and the second input port 12 is connected to the second sensor. Then, when detecting a first sensor connected to the first input port 11, the connection between the first input end and the output end of the switch is turned on by the switch 20, and then the respiration data collected by the first sensor can be directly output to the control unit 40 through the first input port 11 and the switch 20, or can be output to the control unit 40 through the first input port 11, the switch 20 and the signal conversion unit 30, and when detecting a second sensor connected to the second input port 12, the connection between the second input end and the output end of the switch 20 is turned on by the switch 20, and then the respiration data collected by the second sensor can be directly output to the control unit through the second input port 12 and the switch 20, or can be output to the control unit 40 through the second input port 12, the switch 20 and the signal conversion unit 30, so that the control unit 40 can detect the sensor connected to each input port one by one. In practical applications, the number of the input ports may be two or more, and the two input ports are only used for convenience of illustration and are not limited to the number of the input ports.

In summary, in the apnea detecting system, at least two input ports may be connected to different sensors, and the switch is used to control the connection between different input ports and output ports of the switch, so that the apnea detecting system may be connected to different sensors for processing data, and the existing respiration signals include one or more of the following: nasal airflow, nasal atmospheric pressure, chest breathing and abdominal breathing, therefore, gather respiratory signal's sensor also different, the data mode is different to different sensors are handled, use the respiratory signal of nasal airflow as an example, the respiratory signal of nasal airflow includes nasal airflow analog signal and nasal airflow digital signal, to nasal airflow analog signal, nasal airflow digital signal processing mode is also different, this application embodiment utilizes two at least input ports to be connected with different sensors, can externally connect different sensors simultaneously and handle data, utilize a detecting system can carry out data processing to multichannel sensor, improve compatibility, small and portability height.

Further, when the first input port 11 is an analog signal input port and the second input port 12 is a digital signal input port, that is, the first sensor is an analog signal sensor and the second sensor is a digital signal sensor, the first end and the second end of the control unit 40 may be detected by the control unit 40 through time-sharing control. For example, by design, in a first period of time, the second end of the control unit 40 works, the first end does not work, and meanwhile, the switch 20 switches on the connection between the first input end and the output end, so that the respiratory data collected by the first sensor is an analog signal, and the respiratory data is converted into a digital signal by the signal conversion unit 30 and then output to the control unit 40; in the second time period, the first end of the control unit 40 works, the second end does not work, and meanwhile, the switch 20 switches on the connection between the second input end and the output end, so that the respiratory data acquired by the second sensor is a digital signal, and the respiratory data can be directly output to the control unit 40 after passing through the switch 20. It can be understood that the first input port 11 and the second input port 12 may also be both analog signal input ports, and the first sensor and the second sensor may also be both analog signal sensors, at this time, only the control unit 40 is needed to control the second end to work, and meanwhile, the switch 20 may switch between different input ends and output ends, so as to switch and process signals of different analog signal sensors, so that analog signals of different analog signal sensors are output to the second end of the control unit 40 through the switch 20 and the signal conversion unit 30 at different times; or, the first input port 11 and the second input port 12 may be both digital signal input ports, and the first sensor and the second sensor may also be both digital signal sensors, at this time, only the control unit 40 is needed to control the first end to work, and meanwhile, the switch 20 may switch between different input ends and output ends, so as to switch and process signals of different digital signal sensors, and enable digital signals of different digital signal sensors to be output to the first end of the control unit 40 through the switch 20 at different times. The specific time-sharing control manner of the control unit 40 for the ports can refer to the control manner in the prior art, and is not described herein again. In addition, the control unit 40 may adopt a microcontroller which may adopt the STM8, STM16, STM32 series, or any other suitable microcontroller processor or single chip microcomputer which can be used for receiving, processing and outputting data, and is not limited herein.

In order to further improve the operation reliability of the system, in some embodiments, referring to fig. 2, the output terminal of the switch 20 includes a first output terminal and a second output terminal. The first output end of the switch 20 is connected to the first end of the signal conversion unit 30, the second end of the signal conversion unit 30 is connected to the second end of the control unit 40, the second output end of the switch 20 is connected to the first end of the control unit 40, and the switch 20 is configured to switch and conduct connections between different input ends and different output ends according to input signal types of the input port, where the input signal types include digital signals and analog signals.

Specifically, the first input port 11 is an analog signal input port, and the second input port 12 is a digital signal input port, so that when a first sensor connected to the first input port 11 is detected, the switch 20 should turn on the connection between the first input end and the first output end of the switch 20, so that analog signal respiration data collected by the first sensor is converted into digital signal respiration data by the signal conversion unit 30 and then output to the control unit 40, and when a second sensor connected to the second input port 12 is detected, the switch 20 should turn on the connection between the second input end and the second output end of the switch 20, so that digital signal respiration data collected by the second sensor is directly output to the control unit 40. It can be seen that, by providing two output ports on the switch 20, time-sharing design can be performed without using software, and data can be acquired one by one for sensors connected to different input ports by using hardware control, thereby ensuring the working reliability of the system.

In some embodiments, the at least two input ports include at least one analog signal input port for connecting an analog signal sensor and at least one digital signal input port for connecting a digital signal sensor. By arranging at least one analog signal input port and at least one digital signal input port, the system can be compatible with sensors with different input signal types for use, and the compatibility of the system can be improved.

In some of these embodiments, the signal conversion unit is an analog-to-digital converter. Specifically, the ADC is a high-precision ADC sampling chip, which can be used to sample an analog signal, and the high-precision ADC sampling chip can be an 8-bit high-precision ADC sampling chip, a 16-bit high-precision ADC sampling chip, a 32-bit high-precision ADC sampling chip, or any other suitable ADC in the prior art, and it is not limited in this embodiment.

In order to improve the convenience of the system and to make the application scenario of the system wider, in some embodiments, please refer to fig. 2, the apnea detecting system 100 further includes a communication unit 50. Wherein, the communication unit 50 is connected to the third terminal of the control unit 40, and the communication unit 50 is used for transmitting the breathing data to a server or a terminal. Like this, this apnea detecting system 100 can be through communication unit 50 connection client terminal or internet to make the control unit 40 can be through communication unit 50 with breathing data transmission to client terminal or high in the clouds server, the user of being convenient for looks over breathing data at terminal or server, can be convenient for the user at home or go out to use, thereby make the application scene of system more extensive, simultaneously, also do benefit to professional doctor and look over patient's data, improved the convenience of system. Specifically, the communication unit may be at least one of a bluetooth module, a WiFi module, a 4G module, and a 5G module, and in practical application, the communication unit may also be any other suitable communication module, which is not limited in this embodiment.

To further enhance the convenience of the system, please continue to refer to fig. 2, the apnea detection system 100 further includes a memory unit 60. Wherein, the memory unit 60 is connected to the fourth terminal of the control unit 40, and the memory unit 60 is used for storing the respiration data. For example, when the communication unit 50 is damaged, that is, when the communication unit 50 cannot connect with a terminal or a network and transmit data, the control unit 40 may store the breathing data in the storage unit 60, so that the current data may be uploaded to the terminal or a server when the communication unit 50 is normal; on the other hand, the storage unit 60 can be used for storing data, so that a user can conveniently consult the detection data at any time locally.

In order to improve the user experience, in some embodiments, referring to fig. 2, the apnea detecting system 100 further includes a reminding unit 70, and the reminding unit 70 is used for reminding whether the input port is connected to the correct sensor. Specifically, the reminding unit 70 may be a display screen, at least one LED, a buzzer, a microphone, a vibrator or any other suitable reminding unit, and the reminding unit 70 is connected to the input port 10. For example, the reminding unit may be an indicator light, the indicator light is connected to different input ports one by one, when the first input port is an analog signal input port, but when the type of the sensor connected to the first input port is detected to be a digital signal sensor, the indicating LED displays red to remind a user that the sensor is connected incorrectly, and when the type of the sensor connected to the first input port is detected to be an analog signal sensor, the indicating LED displays green to remind the user that the sensor is connected correctly.

In some of these embodiments, the analog signal sensor is at least one of a nasal airflow analog signal sensor, a nasal air pressure analog signal sensor, a chest breathing analog signal sensor, and an abdominal breathing analog signal sensor, and the digital signal sensor is at least one of a nasal airflow digital signal sensor, a nasal air pressure digital signal sensor, a chest breathing digital signal sensor, and an abdominal breathing digital signal sensor. The nasal airflow breathing data, the nasal air pressure breathing data, the chest breathing data and the abdomen breathing data of different signal types can be collected through different analog signal sensors and different digital signal sensors.

To further enhance the convenience of the system, in some of these embodiments, the apnea detection system further includes a battery and battery management circuitry. The battery is respectively connected with the at least two input ports, the selector switch, the signal conversion unit, the control unit and the battery management circuit. Therefore, the battery is arranged to supply power to the system, detection can be carried out without accessing an external power supply, and convenience of the system and use of a user are improved; in addition, the battery management circuit can be used for carrying out charge and discharge control on the battery according to the battery condition, monitoring battery power information and circuit condition by arranging the battery management circuit, and controlling the discharge condition of the battery to the system, for example, when the signal conversion unit does not work, the connection between the battery and the signal conversion unit is disconnected, so that the power supply to the signal conversion unit is stopped, and the system is reduced. The specific control method of the battery management circuit for the battery may refer to the prior art, and is not described herein again.

The utility model provides an apnea detection system, which comprises at least two input ports, a selector switch, a signal conversion unit and a control unit, wherein the selector switch is connected with the input ports; the at least two input ports are used for connecting at least one analog signal sensor and/or at least one digital signal sensor; at least two input ports are connected to at least two input ends of the change-over switch respectively, the first end of the signal conversion unit and the first end of the control unit are connected to the output end of the change-over switch respectively, the second end of the signal conversion unit is connected with the second end of the control unit, the change-over switch is used for switching on connection of different input ends and output ends, the signal conversion unit is used for converting analog signals into digital signals to be output to the control unit, the system is connected with different sensors through the at least two input ports, and the change-over switch is used for switching connection between different input ends and output ends, data can be processed by externally connecting multiple sensors at the same time, the size is small, and the portability is high.

It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the utility model, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An apnea detection system, comprising: the device comprises at least two input ports, a selector switch, a signal conversion unit and a control unit;

2. The apnea detection system of claim 1, wherein said output of said switch comprises a first output and a second output;

3. The apnea detection system of claim 2, wherein said at least two input ports comprise at least one analog signal input port for connection to said analog signal sensor and at least one digital signal input port for connection to said digital signal sensor.

4. The apnea detection system of claim 3, wherein said signal conversion unit is an analog-to-digital converter.

5. The apnea detection system of any of claims 1-4, wherein said apnea detection system further comprises a communication unit;

6. The apnea detection system of claim 5, wherein said communication unit is at least one of a Bluetooth module, a WiFi module, a 4G module, and a 5G module.

7. The apnea detection system of any of claims 1-4, wherein said apnea detection system further comprises a memory unit;

8. The apnea detection system of any of claims 1-4, further comprising a reminder unit for reminding said input port of accessing a correct sensor.

9. The apnea detection system of any of claims 1-4, wherein said analog signal sensor is at least one of a nasal airflow analog signal sensor, a nasal air pressure analog signal sensor, a chest breathing analog signal sensor, and an abdominal breathing analog signal sensor, and said digital signal sensor is at least one of a nasal airflow digital signal sensor, a nasal air pressure digital signal sensor, a chest breathing digital signal sensor, and an abdominal breathing digital signal sensor.

10. The apnea detection system of any of claims 1-4, wherein said apnea detection system further comprises a battery and a battery management circuit;