Multi-parameter sleep monitor

Abstract

The utility model discloses a multi-parameter sleep monitor which comprises a power supply, a master control MCU (Microprogrammed Control Unit), a display screen, an electroencephalogram acquisition circuit, an electrocardiogram acquisition circuit, a blood oxygen saturation acquisition unit, a breath acquisition unit, a body temperature acquisition unit and a 3D (Three-Dimensional) acceleration sensor, the power supply provides working voltage for the main control MCU, the display screen, the electroencephalogram acquisition circuit, the electrocardio acquisition circuit, the oxyhemoglobin saturation acquisition unit, the respiration acquisition unit, the body temperature acquisition unit and the 3D acceleration sensor; the electroencephalogram acquisition circuit, the electrocardio acquisition circuit, the oxyhemoglobin saturation acquisition unit, the respiration acquisition unit, the body temperature acquisition unit and the 3D acceleration sensor are all connected with the processor, and the processor is connected with the display screen. The sleep monitor has the advantages that the size is smaller, the cost of the sleep monitor is reduced, and more functions are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of human electrophysiological monitoring, in particular to a multi-parameter sleep monitoring instrument. Background Art

[0002] With the accelerated pace of life, people's life pressure has increased, and the increase in obesity caused by the improvement of living standards and the reduction of exercise has led to more and more sleep problems. In particular, obese people are more likely to have breathing disorders during sleep, and even apnea syndrome, which not only affects people's sleep quality, but also poses a risk.

[0003] Therefore, more and more sleep apnea syndrome patients choose to use sleep monitors to monitor sleep quality, so as to detect sleep apnea syndrome as early as possible by monitoring physiological parameters during sleep, and then carry out targeted treatment. However, the common problems of existing sleep monitors are: first, the sleep monitor equipment structure is complex, and it also needs to be equipped with a computer as a processing terminal. It requires professional places and professional personnel to operate, so patients can only go to the hospital for treatment. Due to the high cost and complexity of operation of sleep monitors, ordinary families cannot use them; second, the existing sleep monitors can monitor fewer parameters and cannot provide comprehensive monitoring, which is not conducive to timely detection of symptoms of sleep apnea syndrome. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-parameter sleep monitor and a sleep instrument to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-parameter sleep monitor, comprising a power supply, a main control MCU, a display screen, an EEG acquisition circuit, an ECG acquisition circuit, a blood oxygen saturation acquisition unit, a respiration acquisition unit, a body temperature acquisition unit and a 3D acceleration sensor, wherein the power supply provides working voltage for the main control MCU, the display screen, the EEG acquisition circuit, the ECG acquisition circuit, the blood oxygen saturation acquisition unit, the respiration acquisition unit, the body temperature acquisition unit and the 3D acceleration sensor, and the EEG acquisition circuit, the ECG acquisition circuit, the blood oxygen saturation acquisition unit, the respiration acquisition unit, the body temperature acquisition unit and the 3D acceleration sensor are all connected to a processor, and the processor is connected to the display screen.

[0006] Preferably, it also includes a Bluetooth module, which is connected to the main control MCU and a power supply.

[0007] Preferably, the main control MCU is a 32-bit Cortex-M4F low-power microprocessor.

[0008] Preferably, the 3D acceleration sensor adopts a three-axis linear accelerometer of model LIS2DSH.

[0009] Preferably, the EEG acquisition circuit is composed of a bioelectric amplifier, an industrial frequency trap, an amplifier and a low-pass filter.

[0010] Preferably, the ECG acquisition circuit is composed of a bioelectric amplifier with high input impedance, a 0.05 Hz high-pass filter, an industrial frequency trap, an amplifier, and a 200 Hz passive low-pass filter.

[0011] Preferably, it also includes a storage unit, and the storage unit adopts a large-capacity non-volatile memory of 8GB.

[0012] Preferably, the power source is two AA batteries or rechargeable nickel-metal hydride batteries.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model integrates the EEG acquisition circuit, the ECG acquisition circuit, the 3D acceleration sensor and the main control MCU through an integrated design, so that the monitor is smaller in size, easier to carry and use, and reduces the cost of the sleep monitor.

[0015] 2. The EEG acquisition circuit and ECG acquisition circuit, as well as the 3D acceleration sensor, blood oxygen saturation acquisition unit, respiration acquisition unit, and body temperature acquisition unit provided by the utility model can support 2-lead EEG signal acquisition, 1-lead ECG signal acquisition, blood oxygen saturation, body temperature, body position and movement, snoring and other parameters acquisition, so that one device can monitor multiple parameters of the user at the same time, and compared with the existing technology, it has more functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is the principle diagram of the EEG acquisition circuit of the utility model;

[0018] Figure 3 This is the principle diagram of the ECG acquisition circuit of the utility model.

[0019] In the figure: 1. Main control MCU; 2. Display screen; 3. EEG acquisition circuit; 4. ECG acquisition circuit; 5. Blood oxygen saturation acquisition unit; 6. Respiration acquisition unit; 7. Body temperature acquisition unit; 8. 3D acceleration sensor; 9. Bluetooth module. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a multi-parameter sleep monitor, including a power supply, a main control MCU1, a display screen 2, an EEG acquisition circuit 3, an ECG acquisition circuit 4, a blood oxygen saturation acquisition unit 5, a breathing acquisition unit 6, a body temperature acquisition unit 7 and a 3D acceleration sensor 8. The power supply provides working voltage for the main control MCU1, the display screen 2, the EEG acquisition circuit 3, the ECG acquisition circuit 4, the blood oxygen saturation acquisition unit 5, the breathing acquisition unit 6, the body temperature acquisition unit 7 and the 3D acceleration sensor 8. The power supply is two No. 5 dry batteries or rechargeable nickel-hydrogen batteries, providing a 2.5V voltage. The EEG acquisition circuit 3, the ECG acquisition circuit 4, the blood oxygen saturation acquisition unit 5, the breathing acquisition unit 6, the body temperature acquisition unit 7 and the 3D acceleration sensor 8 are all connected to the main control MCU1, and the main control MCU1 is connected to the display screen 2.

[0022] Specifically, it also includes a Bluetooth module 9, which is connected to the main control MCU1 and the power supply. The Bluetooth module 9 can be connected to the mobile phone APP through wireless transmission, so that the utility model can not only be connected through USB like the traditional technology, but also realize wireless connection. It only needs to be operated on the mobile phone. Compared with only being able to read data through USB connection to the computer, the operation of the utility model is more convenient.

[0023] Specifically, the main control MCU1 is a 32-bit Cortex-MF4 low-power microprocessor. The main control MCU1 is responsible for collecting analog signals such as electroencephalogram, electrocardiogram, respiratory wave, blood oxygen saturation, body temperature, snoring, etc., and converts the analog signals into digital signals using its own 12-bit analog-to-digital converter.

[0024] Specifically, the 3D acceleration sensor 8 adopts a three-axis linear accelerometer of model LIS2DSH, and the main control MCU1 is connected to the 3D acceleration sensor 8 through the SPI bus to collect body position and movement information.

[0025] Specifically, it also includes a storage unit 10 , which uses a large-capacity non-volatile memory of 8GB. The main control MCU1 stores the collected EEG information, ECG information, and body position and movement information in the storage unit 10 .

[0026] Specifically, the EEG acquisition circuit 3 is composed of a bioelectric amplifier, an industrial frequency trap, an amplifier and a low-pass filter 34. The first low-pass filter 34 adopts a passive filter, which can reduce the volume of the utility model.

[0027] Specifically, the ECG acquisition circuit 4 is composed of a second bioelectric amplifier with high input impedance, a 0.05 Hz high-pass filter, a second industrial frequency trap, a second amplifier and a 200 Hz passive second low-pass filter 45. The ECG acquisition circuit 4 is connected to external ECG electrodes, which are placed at the RA and LA positions. The ECG acquisition circuit 4 is also connected to an RL electrode for right leg drive to reduce interference.

[0028] In addition, the blood oxygen saturation acquisition unit 5 adopts a transmissive silicone sensor, the body temperature acquisition unit adopts a simple and reliable thermistor method for body temperature acquisition, and the respiration acquisition unit adopts a chest impedance test method for acquisition. These are all existing technologies and will not be described in detail.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-parameter sleep monitor, characterized in that: It includes a power supply, a main control MCU, a display screen, an EEG acquisition circuit, an ECG acquisition circuit, a blood oxygen saturation acquisition unit, a respiration acquisition unit, a body temperature acquisition unit and a 3D acceleration sensor. The power supply provides working voltage for the main control MCU, the display screen, the EEG acquisition circuit, the ECG acquisition circuit, the blood oxygen saturation acquisition unit, the respiration acquisition unit, the body temperature acquisition unit and the 3D acceleration sensor. The EEG acquisition circuit, the ECG acquisition circuit, the blood oxygen saturation acquisition unit, the respiration acquisition unit, the body temperature acquisition unit and the 3D acceleration sensor are all connected to the main control MCU, and the main control MCU is connected to the display screen.

2. A multi-parameter sleep monitor according to claim 1, characterized in that: It also includes a Bluetooth module, which is connected to the main control MCU and a power supply.

3. A multi-parameter sleep monitor according to claim 1, characterized in that: The main control MCU is a 32-bit Cortex-M4F low-power microprocessor.

4. A multi-parameter sleep monitor according to claim 1, characterized in that: The 3D acceleration sensor adopts a LIS2DSH three-axis linear accelerometer.

5. A multi-parameter sleep monitor according to claim 1, characterized in that: The EEG acquisition circuit is composed of a bioelectric amplifier, an industrial frequency trap, an amplifier and a low-pass filter.

6. A multi-parameter sleep monitor according to claim 1, characterized in that: The electrocardiogram acquisition circuit is composed of a bioelectric amplifier with high input impedance, a 0.05 Hz high-pass filter, an industrial frequency notch filter, an amplifier and a 200 Hz passive low-pass filter.

7. The multi-parameter sleep monitor according to claim 1, characterized in that: The system also includes a storage unit, which uses a non-volatile memory with a large capacity of 8 GB.

8. A multi-parameter sleep monitor according to claim 1, characterized in that: The power source is two AA dry batteries or rechargeable nickel-hydrogen batteries.

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