JP3117358U - Biological measuring instrument test piece having identification function and measuring instrument - Google Patents

Abstract

An object of the present invention is to eliminate measurement by a test piece that is not handled by a specific measuring instrument and to eliminate a judgment error of a person who performs the measurement.
The first and second substrates are mainly composed of one insulating first and second substrates. The first substrate is longer than the second substrate, and an electrode and an identification electrode area are provided on the first substrate. The electrode and the identification electrode area are exposed outside the second substrate, and a conductive material is coated on the identification electrode area. When using, the resistance value of the measuring instrument is set by generating a resistance value from the conductive material of the identification electrode area by inserting a test piece into the measuring instrument, or by the resistance value between the electrode and the identification electrode area Determine if it is within range.
[Selection] Figure 2b

Description

  The present invention relates to a biometer test piece having a kind of identification function and its measuring instrument, and more specifically, using various resistance characteristics having a kind of different conductive substances, and distinguishing various conductive substances from the test piece. Applying to the electrode area and changing the test piece identification electrode area eliminates the need to modify the identification element standard on the measuring instrument, thereby reducing costs and, when measuring, the resistance setting value of the measuring instrument and the test piece. A biometer with a discrimination function that compares the resistance with the electrode area and eliminates measurement of test specimens that are not suitable for the measurement of the measuring instrument, thereby avoiding an inspector's judgment mistake, a user's judgment mistake, or a misuse. The present invention relates to a test piece and its measuring instrument.

  The idea of home care is increasing gradually, and there are more products that can be detected by your own operation at home, such as blood glucose detectors, electronic thermometers, electronic sphygmomanometers, etc. Among them, the disposable blood glucose detection paper used in the blood glucose detector detects the blood glucose concentration of the specimen using the principle of an electrochemical biometer.

  Currently, blood glucose, cholesterol, glutamate-oxaloacetate transaminase (GOT), glutamate-pyruvate transaminase (GPT), etc. are commercially available with small test pieces and similar appearance and shape. If you use a test piece for cholesterol incorrectly when measuring, it may cause the instrument to be unusable or incorrect.

  In order to improve the above-mentioned accident, as shown in FIGS. 1a, 1b and 1c, in patent WO01713328, a kind of electrochemical bioinstrument test piece is disclosed and blood sugar, cholesterol and other components in blood can be selected And quantitative analysis is possible. The identification electrode 60 is attached to one end of the electrochemical biological instrument test piece 50. The identification electrode 60 varies depending on the purpose of the test, and is attached to each position. As an example, as shown in FIG. 1a, the identification electrode 60 can be attached to the left side and used in combination with a blood glucose meter. As shown in FIG. 1b, the identification electrode 60 can be attached to the right side and used in combination with a cholesterol meter. Furthermore, as shown in FIG. 1c, the identification electrode 60 can be used in combination with a glutamate-oxaloacetate transaminase (GOT) or glutamate-pyruvate transaminase (GPT) instrument across both sides.

  The identification electrode of this structure can be used in combination with various measuring instruments by mounting them at different positions on the test piece. However, when manufacturing test pieces, if the shapes are different, it is necessary to switch production lines, and the measuring instrument must also make a device for identifying each test piece. For this reason, for the manufacturer, the economic effect is bad and the cost is not reduced. On the other hand, for the consumer, in addition to the specimen being small, the identification electrode on it is attached to a smaller location. Therefore, even if the identification electrode is changed, when the change is small, the measuring instrument to be detected cannot accurately identify whether the test piece is a correct test piece, so that the possibility of erroneous recognition remains.

  The present invention has developed a kind of material with different resistance against the drawbacks of the prior art described above, and various conductive materials are applied to the identification electrode of the test piece and set in advance with a measuring instrument when measuring. The resistance value of the test piece is compared with the resistance value of the test piece identification electrode layer. If it is not a test piece handled by the measuring instrument, the measurement can be rejected and the judgment error of the person to measure can be eliminated.

  In order to achieve the above-mentioned object, the present invention provides a biological measuring instrument test piece having a kind of identification function, and is composed of a first substrate and a second substrate having insulating properties. The insulating substrate includes first and second insulating substrates. The first substrate is longer than the second substrate, and a working electrode area, a reference electrode area, and an identification electrode area are provided on the first substrate. These working electrode area, reference electrode area, and identification electrode area are exposed to the outside of the second substrate, and the identification electrode area is coated with a conductive material. The conductive material can be changed according to the use of the specimen measurement or the measuring instrument. The working electrode and the reference electrode on the first substrate do not contact each other. Furthermore, a measurement area is provided at the other end of the first substrate and the second substrate, and this measurement area is connected to the working electrode and the reference electrode. In use, when the test piece is inserted into the instrument, the conductive material applied to the identification electrode area can be tailored for detection purposes due to the property of generating various resistance values. For this reason, the manufacturer may apply a necessary conductive material to the identification electrode area when shipping from the factory. Since it is not necessary to change the position and standard of the identification electrode according to the usage and standard of the measuring instrument as in the prior art test piece, the manufacturing cost is reduced and the use is more convenient.

  One object of the present invention is to provide a measuring instrument that can be fitted to a kind of measuring specimen. When this instrument is shipped from the factory, a certain range of resistance value is set based on the resistance value of the target test piece. To generate various resistance values and determine whether the resistance values are set in advance. When it is different, send an error message. When it is correct, continue detection. This eliminates determination errors, makes the detection result more accurate, and has a function that is safe even if it fails.

[Example] The present invention provides a bioinstrument test piece having a kind of identification function. 2a and 2b show an embodiment in which the present invention is applied to a planar electrochemical biological specimen. First and second substrates 11 and 12 facing each other are provided on the test piece 10. The first substrate 11 is longer than the second substrate 12, and the first and second substrates 11 and 12 are flat and have insulating properties. Furthermore, the adhesive around the first and second substrates 11 and 12 except for both ends is shown as an adhesive (this is one implementation of the present invention, and those skilled in this technology can implement it in other ways. ), And a portion to which the first and second substrates are adhered and where the adhesive is not applied is provided with a biological material for detection. The first substrate 11 is provided with an identification electrode area 13 on the end surface exposed at the outer end surface of the second substrate 12, and the identification electrode area 13 is coated with a conductive material. The resistance value of each conductive material is different. As an example, conductive carbon mixed material (-400Ω (Ohm) to 800Ω (Ohm) that generates various resistance values depending on the mixing ratio) is a kind of test piece resistance value range, 1kΩ (Ohm) to 3kΩ (Ohm) Another test piece resistance range ...), or a combination of different resistance values than precious metal alloys (platinum, palladium alloys) or single precious metals (gold, silver, palladium, etc.) or indium tin oxide The

  A detection area 14 protruding outside is provided at the other end of the first and second substrates 11 and 12, and the working electrode 15 and the reference electrode 16 are sandwiched between the first and second substrates 11 and 12, and the working electrode 15 and the reference The electrode 16 has a certain distance, one end of the working electrode 15 and the reference electrode 16 is inserted into the detection area 14, and the other end is exposed to the outside of the second substrate 12 together with the identification electrode area 13 (FIGS. 2b and 2). 2c).

  With this configuration, when the test piece is inserted into the measuring instrument, various resistance values are formed by the conductive material on the identification electrode area 13. Alternatively, the resistance generated from one of the electrodes (working electrode 15 or reference electrode 16) and the identification electrode area 13 can be matched to each measuring requirement or different measuring instrument, so it can be tailored to the requirements of each agency. . Furthermore, the manufacturer can apply a conductive material on the identification electrode area 13 according to the demand when shipping from the factory. Unlike the prior art test pieces, it is not necessary to change the position and quantity of the identification electrode in accordance with the application and standard of the measuring instrument, so that the manufacturing cost is reduced and the use is more convenient.

  As shown in FIGS. 3a and 3b, the present invention is applied to a three-dimensional electrochemical biological specimen. The first substrate is provided on the test piece 10, and the second substrate 12 is provided on both sides of the first substrate 11. The first substrate 11 is longer than the second substrate 12, and the first and second substrates 11 and 12 are flat and insulated. Have sex. Furthermore, the adhesive around the first and second substrates 11 and 12 except for both ends is shown as an adhesive (this is one implementation of the present invention, and those skilled in this technology can implement it in other ways. ), And a portion to which the first and second substrates are adhered and where the adhesive is not applied is provided with a biological material for detection. The first substrate 11 is provided with an identification electrode area 13 on an end surface exposed to the outer end surface of the second substrate 12, and the identification electrode area 13 is coated with a conductive material. The resistance value of each conductive material is different. As an example, conductive carbon mixed material (-400Ω (Ohm) to 800Ω (Ohm), which has various resistance values depending on the mixing ratio), is a kind of test piece resistance value section, and 1kΩ (Ohm) to 3kΩ (Ohm) is already It is a kind of test piece resistance range ...), or a combination of various resistance values from precious metal alloys (platinum, palladium alloys) or single precious metals (gold, silver, palladium, etc.) or indium tin oxide .

  Further, the working electrode 15 and the reference electrode 16 are sandwiched between the first substrate 12 and the second substrate 12, respectively. The working electrode 15 and the reference electrode 16 are maintained at a constant interval by the first substrate 11, and the electric There is no connection. One end of the working electrode 15 and the reference electrode 16 is inserted into the detection area 14, and the other end together with the identification electrode area 13 is exposed to the outside of the second substrate 12 (shown in FIGS. 3b and 3c).

  What is shown in FIG. 4 is a measuring instrument. A main body 20 is provided for this measurement, and a display device 21 is provided on the main body 20. Further, a microprocessor is provided inside the main body 20, and this microprocessor is connected to a detection unit, an analog / digital conversion unit, a display device 21, a storage unit, and a power supply unit (not shown). When used, a biological specimen is detected from a detection unit and converted to numerical data by an analog / digital conversion unit. Further, the reference value set in the input unit is taken out from the storage unit by the microprocessor and compared. Displayed from the display unit after the processing (the description is omitted because it is a prior art structure and not within the scope of claims of the present invention). Further, a detection window 22 is provided at one end of the main body 20, and this detection window is provided with a probe point 221 provided in accordance with the test piece 10. The probe point 221 is connected to an instrument control system (not shown). In this embodiment, the probe point 221 can detect an electrode on the identification electrode area 13, or an electrode (working electrode 15 or reference electrode 16) therein or an electrode on the identification electrode area 13.

  As shown in FIGS. 2, 3, and 4, after insertion into the test strip detection window 22 before detection, contact with the identification electrode area 13 or the identification electrode area 13, one of the electrodes and the probe point 221 and after conversion processing The measuring instrument generates various resistance values depending on the conductive material on the specimen identification electrode area 13, or a resistance value generated between the identification electrode area 13 and one of the electrodes. The inside can be judged. When the resistance value is out of the range, an error message is transmitted from the display device 21. When the resistance value is within that range, detection continues. In this way, misjudgment or avoidance can be avoided, and the measurement result can be more accurate and safe even if it fails.

FIG. 1 is a schematic view 1 of the WO0171328 patent. FIG. 2 is a schematic diagram 2 of the WO0171328 patent. FIG. 3 is a schematic diagram 3 of the WO0171328 patent. It is the three-dimensional schematic diagram of this invention test piece. It is a disassembled schematic diagram of a test piece of the present invention. FIG. 5 is a schematic diagram of a correlation position decomposition of a work / reference / identification electrode area on a test piece of the present invention. It is a three-dimensional schematic diagram of another embodiment of the present invention test piece. It is the disassembled schematic of another Example of this invention test piece. FIG. 5 is a schematic diagram of the correlation position decomposition of the working / reference / identification electrode area of another embodiment of the inventive test strip. It is the schematic of this invention measuring device.

Explanation of symbols

11 ・ ・ ・ ・ ・ ・ First board
12 ・ ・ ・ ・ ・ ・ Second board
13 ・ ・ ・ ・ ・ ・ Identification electrode area
14 ・ ・ ・ ・ ・ ・ Measurement area
15 ・ ・ ・ ・ ・ ・ Working electrode
16 ・ ・ ・ ・ ・ ・ Reference electrode
20 ・ ・ ・ ・ ・ ・ Main body
21 ・ ・ ・ ・ ・ ・ Display device
22 ・ ・ ・ ・ ・ ・ Detection window
221 ・ ・ ・ ・ ・ Prob Point

Claims (8)

Including one insulating substrate, one identification electrode area and one detection area,
The one insulating substrate is provided on each of the working electrode and the reference electrode on the substrate,
The one identification electrode area is provided at one end of the substrate, a conductive material is applied to the identification electrode area, and the conductive material is changed according to a resistance value.
The one detection area is provided at the other end of the substrate, and this detection area is connected to the working electrode and the reference electrode,
Biometer test piece with identification function.   2. The bioinstrument test piece having an identification function according to claim 1, wherein the conductive substance is conductive carbon.   2. The organism having an identification function according to claim 1, wherein the conductive material is a noble metal alloy (platinum, palladium alloy), a single noble metal (gold, silver, palladium, etc.), or indium tin oxide. Instrument specimen.   The first and second substrates facing the substrate are provided, the first and second substrates are flat and have insulating properties, and the first and second substrates are coated with an adhesive on the correlation surface excluding both ends. The biometric test with an identification function according to claim 1, wherein the biometric test is performed by applying and bonding the first and second substrates and detecting the detection area where the adhesive is not applied. Fragment.   A first substrate is provided on the substrate, and a second substrate is provided on both sides of the first substrate. The first and second substrates have a flat plate shape and have an insulating property, and the first and second substrates are excluded around both ends. The identification according to claim 1, wherein the first and second substrates are bonded to each other by applying an adhesive to the correlation surface, and detecting the detection area where the adhesive is not applied. Biological instrument test piece with function. A measuring instrument that can be combined with the test piece according to any one of claims 1 to 5,
A detection window is provided in the measuring instrument,
This detection window provides a probe point for detection,
The measuring instrument sets a certain range of resistance values, and when the test piece is inserted into the measuring instrument, the measuring instrument generates various resistance values depending on the conductive material of the identification electrode. When it falls within the set resistance value, an error message is generated to give a safe function even if it fails. It is characterized by continuing measurement so that detection results can be obtained more accurately without
Biometer with identification function.   7. The biometric instrument having an identification function according to claim 6, wherein the probe point is provided in an identification electrode area.   7. The biometer having a discrimination function according to claim 6, wherein the probe point is provided at a correlation position between the discrimination electrode area and the working electrode or the reference electrode.

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