Abstract:
A continuous glucose monitoring system and a monitoring terminal are provided, wherein the monitoring system comprises a monitoring terminal and a mobile terminal; wherein the monitoring terminal includes a portable host and probe assembly which is assembled to the host; the mobile terminal includes a second data communication unit and a User interface; the probe assembly includes two glucolase micro electrode needles, a micro processor, and two electrode terminals; the host includes a signal sampling unit, a signal processing unit, a data storage unit, and a first data communication unit. By using the portable host equipped with the probe assembly to carry out the sampling of the blood glucose data, and sending the detection data continuously to the mobile terminal to continuously monitor the blood glucose, the collection and analysis of the blood glucose data is facilitated, thereby providing a reliable basis for the diabetes treatment.

Description:
TECHNICAL FIELD 
       [0001]    The present application relates to medical electronic technology field, and more particularly, relates to a continuous glucose monitoring system and a monitoring terminal. 
       BACKGROUND 
       [0002]    For a diabetic, the monitoring of glucose is very important. By monitoring the glucose, it can be determine at what time the insulin should be injected in order to lower the glucose level in human body, or to supplement the glucose in order to make the glucose reach to a normal level. 
         [0003]    At present, generally, a mainstream domestic portable blood glucose meter available in the market (for example, the products produced by companies such as Sanrupid, Omron, Yuwel, ACCU-CHEK, or the like) uses a blood sampling method which collects the peripheral blood of a human body for the detection of the blood glucose: firstly the subcutaneous tissue liquid of a human body of a user is collected using lancing devices or blood taking papers; then the blood glucose level is detected and determined by using a colorimetric method, an electrochemical method, or a photometer. However, when using the lancing device or blood taking papers to dynamically monitor the change of the blood glucose of a user, at least four blood glucose papers are needed every day, and the skin of the user needs to be pierced at least four times. In this way, the user may repeatedly feel stabbing pains, and the user experience is poor. Besides, the information about the blood glucose acquired by dynamically monitoring the blood glucose of the user by means of the paper is very limited, and it is impossible to analyze and determine the change of the blood glucose of the user with little blood glucose information. 
         [0004]    Besides, it is possible to detect the glucose using an electrochemical sensor. In this case, the sensor is directly implanted into the blood vessels or the subcutaneous tissues of a patient. However, in general, these apparatuses are expensive, heavy and inflexible, and have larger volumes. Besides, the detection of the glucose using an electrochemical sensor must be carried out in a hospital or an office of a doctor, which greatly limits the activities of the patient. 
         [0005]    It is also possible to use some apparatuses to detect the glucose with a sensor guiding object which is placed on the skin of the patient or the position near the skin. In this case, the sensor guiding object of this type may be bound on the body of the patient. However, the sensor guiding object of this type is usually heavy, and cannot be moved freely. Furthermore, the sensor guiding object or the sensor includes cables or wires which are configured to connect the sensor to other apparatuses for the purpose of transmitting signals from the sensor to an analyzer. The size of the sensor guiding object and the present of the cables and wires also limit the activities of the patient. 
       BRIEF SUMMARY 
       [0006]    The object of the present application is to provide a continuous glucose monitoring system and a monitoring terminal, aiming at the defects in the art that the monitoring of the blood glucose is fussy, and limits the activities of the patient. 
         [0007]    The technical solutions to solve the technical problem are as follows. 
         [0008]    In one aspect, a continuous glucose monitoring system is provided, which comprises: a monitoring terminal and a mobile terminal, wherein the monitoring terminal includes a portable host and a probe assembly which is assembled to the host; the mobile terminal includes a second data communication unit and a user interface; the probe assembly includes two glucolase micro electrode needles, a micro processor, and two electrode terminals; the host includes a signal sampling unit, a signal processing unit, a data storage unit, and a first data communication unit; wherein the signal sampling unit is configured to continuously acquire voltage sampling signals from the two electrode terminals of the probe assembly; the signal processing unit is configured to continuously generate detection data based on the voltage sampling signals, and store the detection data into the data storage unit; the first data communication unit and the second data communication unit are configured to transmit the detection data between the host and the mobile terminal in real time; and the user interface is configured to display the detection date acquired from the host. 
         [0009]    In one embodiment, the host further includes an upper computer authentication unit which is configured to authenticate the mobile terminal before data communication is carried out between the host and the mobile terminal via the first data communication unit and the second data communication unit; after it is successfully authenticated in the upper computer authentication unit, the first data communication unit periodically sends the detection data to the second data communication unit. 
         [0010]    In another embodiment, each probe assembly has a unique serial number, and the host further includes a probe authentication unit; the probe authentication unit is configured to read the serial number of the probe assembly which is assembled to the host, and to initiate the signal sampling unit, the signal processing unit, the data storage unit, and the first data communication unit when the serial number of the probe assembly is valid. 
         [0011]    In a further embodiment, the system further includes a server which is connected to the mobile terminal via a wireless route; all valid serial numbers of the valid probe assemblies are stored in the server; the mobile terminal writes all valid serial numbers of the probe assemblies acquired from the server into the host via the second data communication unit. 
         [0012]    In a further embodiment, the mobile terminal further includes a data analyzing unit, and the data analyzing unit is configured to compare the detection data acquired from the host with blood glucose reference data, give an alarm when the detection data is exceptional, acquire all detection data in the data storage unit from the host via the second data communication unit based on instructions inputted in the user interface, and display the detection data on the user interface. 
         [0013]    In another aspect, a continuous glucose monitoring terminal is further provided, which comprises a portable host and probe assembly which is assembled to the host, wherein the probe assembly includes two glucolase micro electrode needles, a micro processor, and two electrode terminals; the host includes a signal sampling unit, a signal processing unit, a data storage unit, and a first data communication unit; wherein the signal sampling unit is configured to continuously acquire voltage sampling signals from the two electrode terminals of the probe assembly; the signal processing unit is configured to continuously generate detection data based on the voltage sampling signals, and store the detection data into the data storage unit; the first data communication unit is configured to wirelessly send the detection data at regular time intervals. 
         [0014]    In one embodiment, each probe assembly has a unique serial number, and the host further includes a probe authentication unit; the probe authentication unit is configured to read the serial number of the probe assembly which is assembled to the host, and to initiate the signal sampling unit, the signal processing unit, and the first data communication unit when the serial number of the probe assembly is valid. 
         [0015]    In another embodiment, the signal processing unit creates the detection data based on an average of a plurality of voltage sampling signals in a preset period of time. 
         [0016]    In a further embodiment, the host further includes a polarizing operation controlling unit which is configured to output voltage signals to the electrode terminals of the probe assembly in accordance with a preset program when the probe assembly is assembled to the host. 
         [0017]    In a further embodiment, the host further includes a shutdown controlling unit which is configured to start timing after the polarizing operation of the polarizing operation controlling unit is finished, send all detection data in the data storage unit to the mobile terminal via the first data communication unit when a preset period of time has passed, and meanwhile make the single sampling unit, the signal processing unit and the first data communication data stop running. 
         [0018]    In the continuous glucose monitoring system and a monitoring terminal according to the present application, by using the portable host equipped with the probe assembly to carry out the sampling of the blood glucose data, and sending the detection data continuously to the mobile terminal to continuously monitor the blood glucose, the collection and analysis of the blood glucose data is greatly facilitated, thereby providing a reliable basis for the diabetes treatment. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0019]      FIG. 1  is a block diagram of a continuous glucose monitoring system according to an embodiment of the present application; 
           [0020]      FIG. 2  is a block diagram of the host shown in  FIG. 1  according to another embodiment of the present application; and 
           [0021]      FIG. 3  is a block diagram of the mobile terminal shown in  FIG. 1  according to another embodiment of the present application. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0022]    To make the object, the technical solution and the technical advantages more clearly, the present application will be further described with reference to the accompanying drawings and embodiments in the following. It should be understood that, the specific embodiment described here is just for explanation, not for limitation. 
         [0023]      FIG. 1  is a block diagram of a continuous glucose monitoring system according to an embodiment of the present application, which may continuously collect glucose data of a human body. In the present embodiment, the continuous glucose monitoring system comprises a monitoring terminal and a mobile terminal  30 , and the monitoring terminal further includes a portable host  20  and a probe assembly  10  which is assembled to the host  20 . The host  20  is a reusable apparatus, and may be fixed to the human body by means of such as pasting, binding, or the like, and the host does not need to be taken off even during the exercise of the human body. However, the probe assembly  10  is a disposable product, and the probe assembly  10  is assembled to the host  20  in such a way that the probe assembly  10  is conveniently disassembled from the host  20 . The mobile terminal  30  may be a cell phone, a tablet computer, a laptop or the like, which has functions of wirelessly receiving and sending data, and which has corresponding software programs installed therein. 
         [0024]    The probe assembly  10  includes two glucolase micro electrode needles, a micro processor, and two electrode terminals. The glucolase micro electrode needles in this case are implantable probes having a length of approximately 4.9 mm (the needles are implanted into the human body by piercing the surface cuticle and epidermis, and further reaching to the corium layer; for example, an implantation length of the needles into the human body may be approximately 4-4.5 mm). During the oxidation reaction between the interstitial fluids of the user and the glucose inside the human body, voltage signals are generated with the processing of the micro processor, and the voltage signals are further outputted via the electrode terminal. The glucolase micro electrode needles may keep the accuracy of the detection value in seven days. 
         [0025]    The host  20  includes a signal sampling unit  21 , a signal processing unit  22 , a data storage unit  23 , and a first data communication unit  24 . The mobile terminal  30  includes a second data communication unit  32  and a user interface  31 . 
         [0026]    The signal sampling unit  21  is configured to continuously acquire voltage sampling signals from the two electrode terminals of the probe assembly (including the process of filtering, amplifying the voltage signals, or the like). Specifically, the signal sampling unit  21  samples once every 11.25 seconds. The signal processing unit  22  is configured to continuously generate blood glucose detection data based on the voltage sampling signals, send the detection data via the first data communication unit  24 , and meanwhile store the detection data in the data storage unit  23 . The first data communication unit  24  and the second first data communication unit  32  are configured to transmit the detection data between the host  20  and the mobile terminal  30  in real time. For example, every time the signal processing unit  22  generates one blood glucose detection datum, the detection datum is then transmitted to the mobile terminal  30  via the first data communication unit  24  and the second first data communication unit  32 . The user interface  31  of the mobile terminal  30  is configured to display the detection date acquired from the host  20 , in such a way that the user may learn about the blood glucose data. 
         [0027]    In particular, it is possible for the first data communication unit  24  and the second first data communication unit  32  to be a Bluetooth communication module, and transmit data via Bluetooth. 
         [0028]    By the glucolase micro electrode needles implanted into the epidermis, and combing with the host and the mobile terminal, the continuous glucose monitoring system may continuously collect the blood glucose data of the human body. Compared with the prior art, the continuous glucose monitoring system is convenient, brings about a slight pain, and is bloodless, which will not only improve the blood glucose monitoring experience of the user, but also greatly reduce the detection cost when a same number of times of monitoring are carried out. In this way, it is possible to continuously acquire a large number of blood glucose values for a long time. 
         [0029]    The signal processing unit  22  of the host  20  creates the detection data based on the average of a plurality of voltage sampling signals in a preset period of time; for example, the signal sampling unit  21  samples once every 11.25 seconds, and the signal processing unit  22  generates a blood glucose detection datum every three minutes, that is, the signal processing unit  22  creates a blood glucose detection datum based on the average of sixteen voltage sampling signals sampled by the signal sampling unit  21  in three minutes. In this way, the accuracy of the blood glucose detection data may be ensured, and the blood glucose detection data are avoided from being influenced due to the fluctuation of the voltage sampling data. 
         [0030]      FIG. 2  is a block diagram showing another embodiment of the host of the continuous glucose monitoring system. The host  40  in this embodiment includes a signal sampling unit  41 , a signal processing unit  42 , a data storage unit  43 , and a first data communication unit  44 ; besides, the host  40  further includes a probe authentication unit  46 . 
         [0031]    In this embodiment, each probe assembly  10  has a unique serial number (for example, the serial number may be stored in the micro processor of the probe assembly  10 ). The probe authentication unit  46  of the host  40  is configured to read the serial number of the probe assembly which is assembled to the host  40 , and initiate the signal sampling unit  41 , the signal processing unit  42 , the data storage unit  43 , and the first data communication unit  44  when the serial number of the probe assembly is valid. Thereby, the processes, such as sampling the voltage signals, and converting the voltage sampling signals into the blood glucose detection data, are taken place. 
         [0032]    The serial number of the probe assembly may be stored in a remote server which is connected to the mobile terminal  30  via a wireless route. All valid serial numbers of the probe assembly are stored in the server, and the mobile terminal  30  writes all valid serial numbers of the probe assemblies acquired from the server into the host  40  via the second data communication unit  32 . 
         [0033]    In particular, since the probe assembly  10  is a disposable product, once the probe assembly  10  is activated, the host  40  sends the serial number of the probe assembly  10  to the remote server via the mobile terminal  30 , and the server further sets the serial number as invalid. 
         [0034]    By the serial number authentication between the host  40  and the probe assembly  10 , it can be ensure that the probe assembly  10  is valid, preventing the blood glucose detection data from getting wrong due to the usage of inferior products, and further preventing the probe assembly from being repeatedly used; in this way, the cross infection and the reduction of detection accuracy of the blood glucose may be avoided. 
         [0035]    The host  40  may further includes an upper computer authentication unit  45  which is configured to authenticate the mobile terminal  30 , before data communication is carried out between the host  40  and the mobile terminal  30  via the first data communication unit  44  and the second data communication unit  32 . After it is successfully authenticated in the upper computer authentication unit  45 , the first data communication unit  44  periodically sends the detection data to the second data communication unit  32 . In specific, it is possible for the upper computer authentication unit  45  to authenticate the mobile terminal  30  by means of password. That is, it is confirmed that it is successfully authenticated only when the password inputted in the mobile terminal  30  is correct, and only at this time, the host  40  will send the blood glucose detection data to the mobile terminal  30 , or receive the control instructions. 
         [0036]    The host  40  may further include a polarizing operation controlling unit (not shown in  FIG. 2 ). The polarizing operation controlling unit is configured to activate the probe assembly  10 . In specific, the polarizing operation controlling unit outputs voltage signals to the electrode terminals of the probe assembly  10  in accordance with a preset program, when the probe assembly  10  is assembled to the host  40 . 
         [0037]    Furthermore, the host  40  may further include a shutdown controlling unit which is configured to start timing after the polarizing operation of the polarizing operation controlling unit is finished, send all detection data in the data storage unit  43  to the mobile terminal  30  via the first data communication unit  44  when a preset period of time (such as seven days) has passed, and meanwhile make the single sampling unit  41 , the signal processing unit  42  and the first data communication data  44  stop running. After the shutdown controlling unit shuts down the host, the user may again use the host  40  to carry out continuous glucose monitoring when the probe assembly has been changed. 
         [0038]      FIG. 3  is a block diagram of the mobile terminal in the continuous glucose monitoring system according to another embodiment. In addition to a user interface  51  and a second data communication unit  53 , the mobile terminal  50  further includes a data analyzing unit  52 . The data analyzing unit  52  is configured to compare the detection data acquired from the host  20  with blood glucose reference data, give an alarm when the detection data is exceptional (for example, to send a reminder of injecting insulin, supplementing blood glucose, or the like), acquire all detection data in the data storage unit  23  from the host  20  via the second data communication unit  53  based on the instructions inputted in the user interface  51 , and display the detection data on the user interface  51  (for example, in form of a blood glucose dynamic change graph or a change curve). 
         [0039]    By means of the data analyzing unit  52 , the mobile terminal draws a blood glucose dynamic change graph based on the blood glucose detection data within a given period of time, thus assisting to determine the blood glucose state of the user. Besides, it is possible for the data analyzing unit  52  to periodically upload the blood glucose value and the blood glucose dynamic change graph of the user to a health network cloud, which provides a reliable basis for the diagnosis of a doctor or an expert. 
         [0040]    Those are preferred embodiments of the present application. However, it should be understood that, the protection scope of the present application is not limited here. In the inspiration of the present application, one skilled in the art may easily make various modifications and equivalents, without going beyond the scope the claims intend to protect of the present application. All these belong to the protection of the present application should be protected. Therefore, the protection scope of the present application is subjected to the protection scope claimed in claims.