Patent Publication Number: US-2018042537-A1

Title: Wireless Wearable Brain Blood-Oxygen Monitoring System

Description:
TECHNICAL FIELD 
     The present Application relates to the technical field of near infrared spectroscopy brain imaging, in particular to a wireless wearable brain blood-oxygen monitoring system. 
     BACKGROUND OF THE APPLICATION 
     Brain imaging technology has become a new focus of research in cognitive neuroscience, and a lot of new technologies and new Applications emerge, among which a new brain blood-oxygen monitoring technology is the near infrared spectroscopy brain imaging technology. 
     Every person is exposed to the threat of diseases in modern society, and as people are paying more and more attention to their health, wearable medical devices are more widely needed, and health medical devices become essential consumer goods. Currently, the brain blood-oxygen monitoring device is too large to enable wearable measurement. Therefore, with the development of wearable medical devices, there is an urgent need for a wearable brain blood-oxygen monitoring system. 
     SUMMARY OF THE APPLICATION 
     A wireless wearable brain blood-oxygen monitoring system provided by the present Application can enable a brain blood-oxygen monitoring system to monitor in real time and can make it portable. 
     According to one aspect of the present Application, a wireless wearable brain blood-oxygen monitoring system is provided, which comprises a monitoring control device, a detection device, a fixing device and a flexible printed circuit board; said monitoring control device is used for processing a first optical signal to generate a digital signal and sending said digital signal to a portable mobile terminal; said detection device is used for receiving the first optical signal sent by said monitoring control device, and calculating a degree of blood-oxygen saturation in a detected area according to an incident light intensity and an emergent light intensity of the first optical signal; 
     said flexible printed circuit board is used for fixing a photoelectric conversion means in said detection device; 
     said fixing device is used for fitting said monitoring control device and said detection device to the forehead. 
     The wireless wearable brain blood-oxygen monitoring system provided by the present Application can fit the monitoring control device and the detection device to the forehead through the fixing device and can send digital signals to the portable mobile terminal through the monitoring control device, so that the brain blood-oxygen monitoring system can monitor in real time and become portable. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic drawing of a wireless wearable brain blood-oxygen monitoring system provided by an embodiment of the present Application; 
         FIG. 2  is a schematic drawing of a monitoring control device provided by an embodiment of the present Application; 
         FIG. 3  is a schematic drawing of a wireless wearable brain blood-oxygen control system provided by an embodiment of the present Application; 
         FIG. 4  is a schematic drawing of an application scenario of a wireless wearable brain blood-oxygen monitoring system provided by an embodiment of the present Application. 
     
    
    
     DETAILED DESCRIPTION OF THE APPLICATION 
     A general idea of the present Application is to fit the monitoring control device and the detection device to the forehead using the fixing device, and to send digital signals to the portable mobile terminal using the monitoring control device, so that the brain blood-oxygen monitoring system can monitor in real time and become portable. 
     The wireless wearable brain blood-oxygen monitoring system provided by an embodiment of the present Application will be described in detail below in conjunction with the drawings. 
       FIG. 1  is a schematic drawing of a wireless wearable brain blood-oxygen monitoring system provided by an embodiment of the present Application. 
     Referring to  FIG. 1 , the system comprises a monitoring control device  30 , a detection device  20 , a fixing device  10 , a flexible printed circuit board  40  and a light source  50 . 
     The monitoring control device  30  is used for processing a first optical signal to generate a digital signal and sending said digital signal to a portable mobile terminal. 
     The detection device  20  is used for receiving the first optical signal sent by the monitoring control device  30 , and calculating a degree of blood-oxygen saturation in a detected area according to an incident light intensity and an emergent light intensity of the first optical signal. 
     The flexible printed circuit board  40  is used for fixing a photoelectric conversion means in the detection device  20 . 
     The wireless wearable blood-oxygen monitoring system herein comprises two detection devices  20 , which respectively include a photoelectric conversion means that is at an outer side of the forehead of the head of a human body. 
     The fixing device  10  is used for fitting the monitoring control device  30  and the detection device  20  to the forehead. 
     The fixing device  10  herein is a headband. 
       FIG. 2  is a schematic drawing of a monitoring control device provided by an embodiment of the present Application. 
     Referring to  FIG. 2 , said monitoring control device  30  comprises: a light source receiving module  33 , a signal modulating module  34 , a control module  43  that includes an analog-to-digital conversion unit  35 , a light source emitting module  32 , and a light source constant current drive module  31 ; 
     The control module  43  is used for sending control command information to the light source constant current drive module  31  to determine an emission frequency of the first optical signal. 
     The light source constant current drive module  31  is used for receiving the control command information sent by the control module  43  and sending the first optical signal to the light source emitting module  32  at the emission frequency. 
     The first optical signal herein is near infrared that is scattered and absorbed by the brain and carries the blood-oxygen information of the brain. 
     Emission of the light source can be controlled by a single chip machine whose power and frequency is flexibly adjustable, so emission of the first optical signal becomes more stable and controllable; besides, the light source emission module emits near infrared at a constant power and frequency, so reliability of data is guaranteed. 
     The light source emitting module  32  is used for receiving the first optical signal sent by the light source constant current drive module  31  and sending the first optical signal to the light source receiving module  33 . 
     The light source receiving module  33  is used for receiving the first optical signal sent by the light source emitting module  32  and sending said first optical signal to the signal modulating module  34 . 
     The signal modulating module  34  is used for receiving the first optical signal sent by the light source receiving module  33 , converting the first optical signal into a first electrical signal, and filtering the first electrical signal to generate a second electrical signal. 
     The analog-to-digital conversion unit  35  is used for converting the second electrical signal into a digital signal. 
     According to an exemplary embodiment of the present Application, the monitoring control device  30  further comprises a Bluetooth module  42 , an EEPROM module  38 , a battery module  41  and an LED module  36 . 
     The Bluetooth module  42  is used for receiving the digital signal sent by the control module  43  and sending the digital signal to a portable mobile terminal  60 . 
     The EEPROM module  38  is used for storing data and for erasing or programming the stored data. 
     The battery module  41  is used for supplying a voltage and monitoring the power supply state. 
     The LED module  36  is used for displaying the button state. 
     A RTC module  39  is used for recording data in real time. 
     A button  37  is used for controlling ON and OFF of the system. 
       FIG. 3  is a schematic drawing of a wireless wearable brain blood-oxygen control system provided by an embodiment of the present Application. 
     Referring to  FIG. 3 , the control system comprises a monitoring system  11 , a portable mobile terminal  60  and a cloud server  70 . The monitoring system  11  comprises the monitoring control device  30 , the detection device  20 , the fixing device  10 , the flexible printed circuit board  40  and the light source  50 . 
     The portable mobile terminal  60  is used for receiving the digital signal sent by the monitoring control device  30 , processing the digital signal and displaying the processed digital signal, wherein the processed digital signal is the brain blood-oxygen information of a human body; or the portable mobile terminal  60  receives data sent from the cloud server  70  and synchronizes the received data. 
       FIG. 4  is a schematic drawing of an application scenario of a wireless wearable brain blood-oxygen monitoring system provided by an embodiment of the present Application. 
     Referring to  FIG. 4 , firstly a system interface can be entered by logging into the wireless wearable brain blood-oxygen monitoring system; then by clicking on a personal information file, the current brain blood-oxygen information can be obtained, or by clicking on “returning to historical information”, the historical brain blood-oxygen information can be obtained. 
     The above described are merely preferred embodiments of the present Application, but the protection scope of the present Application is not limited to this. Any variation or replacement that is readily conceivable by those skilled in the art within the technical scope disclosed by the present Application shall fall into the protection scope of the present Application. Therefore, the protection scope of the present Application shall be determined by the protection scope of the claims.