CN2528010Y

CN2528010Y - Biological sensor

Info

Publication number: CN2528010Y
Application number: CN 02230248
Authority: CN
Inventors: 欧阳瑶; 欧阳兴; 吴佳其; 吴淑媚; 陈朝旺
Original assignee: TaiDoc Technology Corp
Current assignee: TaiDoc Technology Corp
Priority date: 2002-04-02
Filing date: 2002-04-02
Publication date: 2002-12-25
Anticipated expiration: 2012-04-02

Abstract

The utility model relates to a biological sensor device which can be used to measure the content of blood sugar, uric acid or cholesterol in human body, therefore the user can check own body conditions at any time and place; the biological sensor of the utility model is only provided with a insertion slot, the key code, calibration or examination sheet can be respectively inserted into the insertion slot in various states, thereby reaching the starting and inputting of operation programs and operation parameters, when necessary, the calibration of the instrument can be performed, moreover when an analysis fluid (generally blood) drops on the examination sheet, the examination result can be measured according to the previous obtained operation programs and parameters.

Description

The biological sensing apparatus

Technical field

The utility model relates to a kind of electric chemical formula Medical Instruments, and particularly a kind of biological sensing apparatus (bio-sensing meter) relates in particular to a kind of blood sugar biological sensor (electrochemicalglucose biosensor).

Background technology

The biological sensing instrument is used for detecting blood material to be analyzed, for example blood sugar (glucose) or cholesterol (cholesterol) etc., its normal test strips (sample strip) of jettisonable of using is finished detection, usually having a reaction zone (reaction well) on the test paper allows droplet of blood in the above, control whole operation by the combination that includes microprocessor/ROM (read-only memory) (ROM) in the instrument again, and reach the measured analysis result of acquisition by carrying out various programs.Yet, along with development of technology, the calculation program of measuring will constantly change, especially for field of biological detection, the factor of measuring all is subjected to the influence that test paper makes always and changes to some extent, but if the hardware design in the existing sensing meter can't and then be upgraded, the sensing meter of being bought the so new a collection of test paper of will can't arranging in pairs or groups is soon measured, its result is the sensing meter that need more renew, yet such mode is quite unpractical.

Another kind of existing sensing meter has been improved above-mentioned shortcoming, utilization has increased a slot on sensor, be different from the position that test paper inserts, additional designs one memory plug-in card (memory key) collocation is inserted wherein, when measuring, the memory plug-in card must cooperate with a collection of test paper and inserts on the sensing meter always, the result by the running program and the parameter ability correct measurement that provide on the plug-in card are provided.

Please refer to Fig. 1, a prior biological sensor 10 includes a display 12, a control knob 14 and the test strips 18 of a slot 16 in order to accept a jettisonable.Test strips 18 has the electrode 24 and 26 that a reaction zone 20 comprises pair of conductive.One enzyme reaction thing (enzymatic reactant) layer (not illustrating) covers on electrode 24 and 26 in reaction zone 20, and a basalis contains analyte fluid (analyze-containing fluid) to drip last one, for example the liquid of bleeding.Having an opening 28 in test strips 18 ends of jettisonable can expose electrode 24 and 26, allow test strips 18 produce electrical contacting well with biological sensor 10, this prior biological sensor 10 also includes a pluggable ROM Key 30, in another slot of its insertion biological sensor 10 upper ends of arranging in pairs or groups (indicating), after inserting, can and can communicate with each other equally with biological sensor 10 generation electric connections.

The structure of ROM Key 30 as shown in Figure 2, it includes a programmable rom chip 32 and is arranged on a substrate surface 34.Several wires 36 is connected on each

chase

40 and 42 by rom chip 32 with 38.Substrate 34 is for insulation and the support of chip 32 is provided, and chase 40 and 42 provide ROM Key30 after inserting biological sensor 10, can guarantee sensor 10 and

lead

36 and 38 do not contact and can produce short circuit.

After ROM Key 30 inserts sensor 10, several electroconductive elastic sheets will be arranged with

contact wire

36 and 38 in the sensor 10, and make the microprocessor in the sensor 10 can read the data that are stored on the rom chip 32.That is to say that when biological sensor 10 was measured, ROM Key 30 must be inserted on the sensor 10 always and can not lift down.Certainly, the function of ROM Key 30 is exactly the different a collection of test paper of collocation, and the running program that meets this batch test paper and the data of parameter are provided, and allows biological sensor 10 have the effect of upgrading.

Summary of the invention

The purpose of this utility model is to provide a kind of biological sensing apparatus; ability with upgrading (upgrade); and only possesses a slot; collocation uses Key Code, adjustment or inspection test piece respectively at inserting slot under the various situations; start input operation program and operating parameter to reach respectively; can carry out the correction of instrument in case of necessity; and on inspection test piece, drip when a reactant to be analyzed (being generally blood) is arranged, can go out the result of detection according to running program that had before obtained and parameter measurement.

According to above-mentioned purpose, the utility model provides a kind of biological sensing apparatus, has a slot and can accept a Key Code and an inspection test piece, has a reaction zone and several electrodes on the inspection test piece, reaction zone contains a reactant, and these a little electrodes also are contacted with reaction zone; But biological sensor comprises a voltage source, a sensing amplifier, a write store and a microprocessor, voltage source provides an inspection test piece electrode one operating voltage, sensing amplifier then connects another inspection test piece electrode, contains the analyte stream private savings and drops in an output signal that will produce a corresponding current sensor in the reaction zone when one; Key Code test piece will be inserted in the slot in advance, but read the running program of its parameter value that is stored in several included storages of an eeprom circuit and the operation of control biological sensor by the write store of biological sensor, microprocessor will be responded by the decision of the obtained running program of Key Code test piece and parameter and provide several voltages that are predetermined the duration by voltage source, and voltage and duration value also are to get according to the EEPROM storage data in the Key Code test piece; And microprocessor control sensing amplifier provides several signal outputs through a schedule time, showing an analysis result of measured analyte fluid, same sensing amplifier controlled particular parameter value also be to obtain by the EEPROM storage data in the Key Code test piece.

Wherein, can include an adjustment test piece and can insert in the slot, the adjustment test piece is to comprise that a resistance circuit is used to proofread biological sensor, and perhaps Key Code test piece includes a resistance circuit simultaneously, also can be used as the usefulness of check and correction biological sensor.

For above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. elaborates.

Description of drawings

Fig. 1 raises device for existing a kind of biological sensing;

Fig. 2 is according in Fig. 1 prior biological sensor device, the circuit structure of a memory plug-in card;

Fig. 3 is a synoptic diagram of the present utility model;

Fig. 4 A-4D is the synoptic diagram of collocation difference in functionality test piece of the present utility model;

Fig. 5 A-5D is the system chart of the different test pieces of the utility model collocation Fig. 4 A-4D.

Embodiment

Please refer to Fig. 3, it is the synoptic diagram of the utility model biological sensor 50, and with regard to outward appearance, it is only to have a slot 52 that the utility model has obvious difference, and is can provide equally with difference to criticize the test piece of production run, the sensor with upgrading ability.

Shown in Fig. 4 A to 4D, be respectively the

test piece

62,64,66 and 68 of the various difference in functionalitys that insert slot 52.Wherein 62 represent a check test piece, it is as above-mentioned test strips 18 structures, and district and electrode equally respond.64 represent corresponding as above-mentioned ROM Key 30, have the Key Code test piece of an eeprom chip 63 circuit on it.The 66th, the check and correction test piece that provides in addition, circuit with a resistance 65, its function is the ability that can provide the utility model biological sensor 50 to proofread and correct, find that when sensor 50 uses measurement result has inaccurate situation to occur, just can restore next sensor parameter back and forth by inserting this adjustment test piece 66.Last 68 for having bifunctional test piece, can do simultaneously with the test piece of 66 functions and to be in the same place having 64, just can be used to provide the parameter of operation and the usefulness of program also to can be used to proofread and correct sensor 50 simultaneously.

The system chart of the utility model biological sensing apparatus 50 can illustrate as Fig. 5 A to 5D respectively, the corresponding respectively situation of inserting

different test pieces

62,64,66 and 68.The utility model sensor 50 comprises a display (Display) 51, a button (Key) 53, power supply control (Power Control) but 54, one sensing amplifier 56, a write store (EEPROM) 58 and a microprocessor (Micro Processor) 60 of integrating.Wherein microprocessor also comprises a storer (Memory) 71, a lcd driver (LCD Driver) 73, one CPU75, an A/D converter 77 and an I/O device 79.60 control 54 by power supply provides an inspection test piece electrode one operating voltage, 56 of sensing amplifiers connect another inspection test piece electrode, contain analyte fluid when one, for example the liquid of bleeding has dropped in the reaction zone of inspection test piece 62, will produce an output signal of a corresponding current sensor.Key Code test piece 64 will be inserted in the slot 52 in advance, its parameter value that is stored in the included a plurality of storages of eeprom chip 63 circuit in the Key Code test piece 64 and control are biological to become to survey the running program that device is operated but read by the write store 58 of biological sensor 50, microprocessor 60 will be responded by the decision of the obtained running program of Key Code test piece and parameter and provide a plurality of voltages that are predetermined the duration by power supply control 54, and voltage and duration value also are to get according to the 63 stored data of the eeprom chip in the Key Code test piece 64; And microprocessor 60 these sensing amplifiers 56 of control provide a plurality of signal outputs through a schedule time, showing an analysis result of this measured analyte fluid, same sensing amplifier controlled particular parameter value also be to obtain by storage datas in the eeprom chip in this Key Code test piece 64 63.

In the system chart of Fig. 5 C and 5D, resistance 65 circuit in the adjustment test piece 66 can be reached the purpose of proofreading and correct sensor 50.And the test piece 68 that merges Key Code and two functions of check and correction according to identical mode can the while as the usefulness of input parameter and running program and check and correction.

Though the utility model with preferred embodiment openly as above; right its is not that those of ordinary skills are not in breaking away from spirit and scope of the present utility model in order to qualification the utility model; when doing a little change and retouching, therefore protection domain of the present utility model is as the criterion with claim.

Claims

1, a kind of biological sensing apparatus is characterized in that, described biological sensing apparatus has a slot, one Key Code and inspection test piece can insert wherein, have a reaction zone and a plurality of electrode on this inspection test piece, this reaction zone contains a reactant, and described electrode is contacted with this reaction zone; But this biological sensing apparatus also comprises a voltage source, a sensing amplifier, a write store and a microprocessor, this voltage source provides an inspection test piece electrode one operating voltage, this sensing amplifier then connects another inspection test piece electrode, contain analyte fluid and dropped in this reaction zone when one, will produce an output signal of a corresponding current sensor.

2, biological sensing apparatus as claimed in claim 1, it is characterized in that, this Key Code test piece will be inserted in this slot in advance, but read the running program of its parameter value that is stored in the included a plurality of storages of an eeprom circuit and this biological sensor operation of control by the write store of this biological sensor, this microprocessor will be responded by the decision of the obtained running program of this Key Code test piece and parameter and provide a plurality of voltages that are predetermined the duration by this voltage source, and this voltage and duration value also are to get according to this EEPROM storage data in this Key Code test piece; And this microprocessor is controlled this sensing amplifier a plurality of signals output through a schedule time is provided, to show an analysis result of this measured analyte fluid, equally this sensing amplifier controlled special parameter also be to obtain by this EEPROM storage data in this Key Code test piece.

3, biological sensing apparatus as claimed in claim 1 is characterized in that, also includes the adjustment test piece that can insert in this slot, and this adjustment test piece comprises that one is used to proofread this biological sensor resistance circuit.

4, biological sensing apparatus as claimed in claim 1 is characterized in that described Key Code test piece includes one in order to proofread this biological sensor resistance circuit.