CN202393735U - Novel glucose meter - Google Patents
Novel glucose meter Download PDFInfo
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- CN202393735U CN202393735U CN2011205228270U CN201120522827U CN202393735U CN 202393735 U CN202393735 U CN 202393735U CN 2011205228270 U CN2011205228270 U CN 2011205228270U CN 201120522827 U CN201120522827 U CN 201120522827U CN 202393735 U CN202393735 U CN 202393735U
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- control module
- glucose oxidase
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- oxidase enzyme
- sensor
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Abstract
A novel glucose meter comprises a core control module and a power supply management module, a liquid crystal display module, a key module and a clock module which are connected with the core control module. The signal input end of the core control module is connected with a glucose oxidase biological sensor connected with a constant temperature control module. The constant temperature control module comprises a digital temperature sensor and a controllable heat source, the signal input end of the digital temperature sensor is connected with the glucose oxidase biological sensor, and the signal output end of the digital temperature sensor is connected with the core control module. The controllable heat source is connected with the core control module. The novel glucose meter enables temperature of the glucose oxidase biological sensor to be the set constant value, reduces measurement error caused by temperature difference to the largest extent and improves measurement accuracy.
Description
Technical field
The utility model relates to a kind of blood glucose meter, is specifically related to a kind of novel novel blood glucose meter with thermostatic control function.
Background technology
In recent years, the Along with people's growth in the living standard, the diabetic is also increasing, and according to incompletely statistics, the incidence of disease of this disease is 2%～3%, and with millesimal speed increment, diabetes have become one of four big diseases that are detrimental to health.The patient needs the prolonged application hypoglycemic medicine, and the observation of its curative effect and the state of an illness mainly relies on blood sugar monitoring, and blood glucose meter is because its simple, convenient advantage such as quick has got into many patients' family.
At present, blood glucose meter is to have adopted the glucose oxidase enzyme biologic sensor mostly, and the blood glucose value detection method that it adopts is a bio-electrochemical process.The glucose oxidase enzyme biologic sensor is the fixing glucose oxidase of modifying on electrode surface, records the concentration of glucose through little electric current that glucose oxidase produced on the mensuration electrode.Apply constant voltage (about 0.3V) at the enzyme electrode two ends; When tested blood sample splashes into the enzyme electrode test section; Be fixed on glucose oxidase and the glucose generation redox reaction in the blood sample on the electrode, directed moving takes place in the electronics that chemical reaction produces under effect of electric field, thus the formation response current; Concentration of glucose is linear in response current after saturated and the tested blood sample, through detecting the blood sugar concentration that the saturation response electric current can draw tested blood sample.
But because temperature has certain influence to the glucose oxidase enzyme activity, there is certain deviation in the blood sugar concentration that records under the different temperatures, and therefore traditional blood glucose meter and reckon without this error component needs further to improve.
The utility model content
The utility model technical matters to be solved provides a kind of novel blood glucose meter, and it has the thermostatic control function, can effectively eliminate the measuring error that the Yin Wendu difference causes, thereby solves the problem in the above-mentioned background technology.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
A kind of novel blood glucose meter; Comprise kernel control module and the power management module, the LCD MODULE that link to each other with said kernel control module; Key-press module and clock module; The signal input part of said kernel control module is connected with the glucose oxidase enzyme biologic sensor; It is characterized in that said glucose oxidase enzyme biologic sensor is connected with the thermostatic control module, said thermostatic control module comprises and is used to gather the digital temperature sensor of said glucose oxidase enzyme biologic sensor temperature parameter and is used for the controlled thermal source to said glucose oxidase enzyme biologic sensor heating; The signal input part of said digital temperature sensor connects the glucose oxidase enzyme biologic sensor, and signal output part connects kernel control module; Said controlled thermal source is connected on the said kernel control module.
As a kind of improvement; Said controlled thermal source comprises and being used for to the well heater of glucose oxidase enzyme biologic sensor heating, the digital regulation resistance that is used to the controllable electric power of heating installation power supply and is used to control said controllable electric power output voltage; Said well heater, controllable electric power and digital regulation resistance are connected in regular turn; Said well heater cooperates installation with said glucose oxidase enzyme biologic sensor, and said digital regulation resistance is connected on the said kernel control module.
As a kind of improvement, said kernel control module comprises that model is the dsp controller of TMS320LF2407A.It has adopted the static CMOS technology of high-performance, makes supply voltage reduce to 3.3V, has reduced the power consumption of controller; The execution speed of 40MIPS makes the instruction cycle shorten to 25ns (40MHz), thereby has improved the real-time control ability of controller; The A/D converter of the RAM of integrated flash memory of 32K word (can encrypt), 2.5K, 500ns switching time, task manager provides the PWM interface and the I/O function that can satisfy various motors on the sheet.
As the design of routine, said LCD MODULE comprises LCD display, and said key-press module comprises the PIC16F72X touch key-press, and said clock module comprises clock chip PCF858.
For satisfying the requirement that the blood glucose meter volume is little and economize on electricity, adopted the less peripheral chip of number of pins in the utility model in a large number.The clock chip PCF858 that adopts like clock module has I
2The C EBI is not because the dsp controller of TMS320LF2407A has I
2The C EBI is so can only use general I/O pin to come and I
2The data line SDA of C bus links to each other with clock line SCL, uses software simulation I
2The C sequential.
The principle of work of the utility model is following:
The temperature value of glucose oxidase enzyme biologic sensor is set through the PIC16F72X touch key-press; Digital temperature sensor converts the temperature value that records into digital signal and gives dsp controller; And compare with the temperature value of setting, utilize pid control algorithm, with the difference after relatively as input variable; Produce controlled quentity controlled variable through calculating; Controlled quentity controlled variable is through the output voltage of digital regulation resistance control controllable electric power, i.e. the heat that adds of the supply voltage of well heater, and then control heater is regulated the temperature of glucose oxidase enzyme biologic sensor and made it to be constant at setting value.
Owing to adopted technique scheme, the beneficial effect of the utility model is:
The blood glucose meter that the utility model provides; Adopt the glucose oxidase enzyme biologic sensor, and for the glucose oxidase enzyme biologic sensor is provided with controlled thermal source and digital temperature sensor, digital temperature sensor is in order to gather glucose oxidase enzyme biologic sensor temperature parameter; Temperature parameter is transferred to kernel control module; Kernel control module is regulated and control the heat that adds of controlled thermal source again, thereby makes the temperature of glucose oxidase enzyme biologic sensor be in the steady state value of setting, like this; Just can reduce to greatest extent because the measuring error that the temperature difference causes has improved the precision of measuring.
Description of drawings
Accompanying drawing is the composition structural representation of the utility model embodiment;
Among the figure: 1. kernel control module, 2. power management module, 3. LCD MODULE, 4. key-press module; 5. clock module, 6. glucose oxidase enzyme biologic sensor, 7. digital temperature sensor; 8. well heater, 9. controllable electric power, 10. digital regulation resistance.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Shown in accompanying drawing, a kind of novel blood glucose meter comprises kernel control module 1 and the power management module 2, the LCD MODULE 3 that link to each other with said kernel control module 1; Key-press module 4 and clock module 5; The signal input part of said kernel control module 1 is connected with glucose oxidase enzyme biologic sensor 6, and said kernel control module 1 comprises that model is the dsp controller of TMS320LF2407A, and it has adopted the static CMOS technology of high-performance; Make supply voltage reduce to 3.3V, reduced the power consumption of controller; The execution speed of 40MIPS makes the instruction cycle shorten to 25ns (40MHz), thereby has improved the real-time control ability of controller; The A/D converter of the RAM of integrated flash memory of 32K word (can encrypt), 2.5K, 500ns switching time; Task manager provides the PWM interface and the I/O function that can satisfy various motors on the sheet; Said LCD MODULE 3 comprises LCD display; Said key-press module 4 comprises the PIC16F72X touch key-press, and said clock module 5 comprises clock chip PCF858; In the present embodiment; Said glucose oxidase enzyme biologic sensor 6 is connected with the thermostatic control module; Said thermostatic control module comprises and is used to gather the digital temperature sensor 7 of said glucose oxidase enzyme biologic sensor temperature 6 parameters and is used for the controlled thermal source to said glucose oxidase enzyme biologic sensor 6 heating; The signal input part of said digital temperature sensor 7 connects glucose oxidase enzyme biologic sensor 6, and signal output part connects dsp controller; This controlled thermal source comprises the well heater 8 that is used for to 6 heating of glucose oxidase enzyme biologic sensor, the controllable electric power 9 that is used to well heater 8 power supplies and the digital regulation resistance 10 that is used to control said controllable electric power 9 output voltages; Said well heater 8, controllable electric power 9 and digital regulation resistance 10 are connected in regular turn; Said well heater 8 cooperates installation with said glucose oxidase enzyme biologic sensor 6, and said digital regulation resistance 10 is connected on the said dsp controller.
Below in conjunction with accompanying drawing the principle of work of present embodiment is carried out detailed description.
The temperature value of glucose oxidase enzyme biologic sensor 6 is set through the PIC16F72X touch key-press; Digital temperature sensor 7 converts the temperature value that records into digital signal and gives dsp controller; And compare with the temperature value of setting, utilize pid control algorithm, with the difference after relatively as input variable; Produce controlled quentity controlled variable through calculating; Controlled quentity controlled variable is through the output voltage of digital regulation resistance 10 control controllable electric powers 9, i.e. the heat that adds of the supply voltage of well heater 8, and then control heater 8 is regulated the temperature of glucose oxidase enzyme biologic sensor 6 and made it to be constant at setting value.
The utility model is not limited to above-mentioned embodiment, and all are based on the technical conceive of the utility model, and the structural improvement of having done all falls among the protection domain of the utility model.
Claims (2)
1. novel blood glucose meter; Comprise kernel control module and the power management module, the LCD MODULE that link to each other with said kernel control module; Key-press module and clock module; The signal input part of said kernel control module is connected with the glucose oxidase enzyme biologic sensor; It is characterized in that: said glucose oxidase enzyme biologic sensor is connected with the thermostatic control module; Said thermostatic control module comprises and is used to gather the digital temperature sensor of said glucose oxidase enzyme biologic sensor temperature parameter and is used for the controlled thermal source to said glucose oxidase enzyme biologic sensor heating that the signal input part of said digital temperature sensor connects the glucose oxidase enzyme biologic sensor, and signal output part connects kernel control module; Said controlled thermal source is connected on the said kernel control module.
2. a kind of novel blood glucose meter as claimed in claim 1; It is characterized in that: said controlled thermal source comprises and being used for to the well heater of glucose oxidase enzyme biologic sensor heating, the digital regulation resistance that is used to the controllable electric power of heating installation power supply and is used to control said controllable electric power output voltage; Said well heater, controllable electric power and digital regulation resistance are connected in regular turn; Said well heater cooperates installation with said glucose oxidase enzyme biologic sensor, and said digital regulation resistance is connected on the said kernel control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205228270U CN202393735U (en) | 2011-12-14 | 2011-12-14 | Novel glucose meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205228270U CN202393735U (en) | 2011-12-14 | 2011-12-14 | Novel glucose meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393735U true CN202393735U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205228270U Expired - Fee Related CN202393735U (en) | 2011-12-14 | 2011-12-14 | Novel glucose meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202393735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103549963A (en) * | 2013-11-08 | 2014-02-05 | 上海移宇科技有限公司 | Implanted real-time dynamic blood sugar monitoring equipment |
-
2011
- 2011-12-14 CN CN2011205228270U patent/CN202393735U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103549963A (en) * | 2013-11-08 | 2014-02-05 | 上海移宇科技有限公司 | Implanted real-time dynamic blood sugar monitoring equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20121214 |