TWM454540U - Electrochemical strip reading apparatus - Google Patents

Description

Electrochemical test strip reading device

The present invention relates to a test strip reading device for biological detection, and more particularly to an electrochemical test strip reading device that is connected to a memory calibration sheet to record information and correct errors.

With the evolution of civil society, the incidence of diabetes has been increasing year by year, and the age of rickets has decreased year by year. In recent years, it has been the top five in the Taiwan region. Therefore, the medical community is constantly developing the treatment mechanism of diabetes, and actively advocates that good blood sugar control can reduce the occurrence of diabetic complications. Therefore, the small blood glucose meter with simple operation and high accuracy has become a must-have for home testing. Patients can self-monitor blood glucose to determine treatment changes and reduce unnecessary outpatient visits.

However, the current small blood glucose meter must be connected to the calibration wafer at the same time to provide identification information such as the type, batch number and shelf life of the test strip, but it is difficult to avoid correcting the wafer due to loss or damage; Then, any testing instrument has aging problems, and once the instrument begins to age, it will affect the accuracy of the test results, and the record of the patient's self-testing blood glucose loses the reference value.

In view of this, how to improve the shortcomings of the above-mentioned conventional blood glucose meter, make the operation and recording of blood glucose detection more convenient, and solve the problem of aging of the instrument, and provide more accurate detection results, which is really required by the relevant industry. aims.

In order to overcome the above disadvantages, the present invention provides an electrochemical test strip reading device comprising a housing, a display, a slot, a current detecting conversion circuit, a microprocessor, an operation button, and a memory calibration sheet. The memory calibration sheet is provided with a metal pin area and a memory chip, and further has a standard resistor connected to the metal junction area.

The main purpose of this creation is to provide an electrochemical test strip reading device when When the memory calibration chip is connected, in addition to reading the identification information carried in the memory calibration sheet, and storing the identification information in the microprocessor, the inconvenience caused by the failure to obtain the relevant information due to the correction of the wafer loss can be solved.

Another object of the present invention is to provide an electrochemical test strip reading device which, when connected with a memory calibration sheet, reads the standard resistance parameter value stored in the memory chip and passes through the metal pin area and the standard. The standard resistance signal is obtained by connecting the resistors, and the calibration deviation value is obtained by comparing the two, and the detection error is automatically corrected accordingly, which can improve the error caused by the aging of the instrument and improve the correctness of the detection result.

A further object of the present invention is to provide an electrochemical test strip reading device. When the slot is connected to the memory calibration sheet, the detection history recorded in the microprocessor can be stored in the memory chip of the memory calibration sheet. It can be used as a medical record card for long-term recording of test results, which is helpful for remote medical consultation and medical tracking.

Since the present invention discloses an electrochemical test strip reading device, the biochemical and electrochemical detection principles utilized are well known to those of ordinary skill in the art, and therefore, the description below will not be fully described. At the same time, the drawings in the following texts express the structural schematics related to the creative features, and do not need to be completely drawn according to the actual size, which is first described.

Please refer to FIG. 1A, FIG. 1B and FIG. 2A and FIG. 2B, which are schematic diagrams of an electrochemical test strip reading apparatus 100 according to an embodiment of the present invention, for reading a memory calibration sheet 10 and an electrochemical test strip 20, In other words, it is used to read the identification information contained in the memory calibration sheet 10 and the detection signal emitted by the electrochemical test strip 20, and the electrochemical test strip reading device 100 includes the memory calibration sheet 10, the housing 101, and the display 102. The slot 103, the current detection switching circuit 104, the microprocessor 105, and the operation button 106.

The display 102 of the present invention is disposed on the casing 101 for displaying the detection result. The slot 103 is disposed on the housing 101, and the memory calibration sheet 10 and the electrochemical test strip 20 are inserted into the slot 103. The socket 103 includes a plurality of pins 1031 and 1032 for providing memory. The metal pin region 11 formed by the calibration sheet 10 is connected to the electrode region 21 formed by the electrochemical test strip 20. The current detecting conversion circuit 104 is disposed inside the casing 101, and reads the fluid reaction signal released by the fluid reaction zone 22 of the electrochemical test strip 20 through the slot 103. The microprocessor 105 is disposed inside the casing 101 and includes a database module 1051 and a computing module 1052. The database module 1051 stores a plurality of pen identification information, standard resistance parameter values, standard resistance signals, and fluid reaction signals. The identification information includes the type, batch number, calculation formula, expiration date and reagent correction data of different batches of electrochemical test strips 20, and the operation module 1052 is stored in the database according to the type and batch number of the electrochemical test strip 20 The identification information of the electrochemical test strip 20 corresponding to the type and the batch number in the module 1051, and reading the calculation formula and the reagent correction data belonging thereto, and then obtaining the detection result represented by the fluid reaction signal by operation, and The resulting test results are displayed on display 102. Further, the electrochemical test strip reading apparatus 100 is provided with an operation button 106 for providing an operation of step selection in the detection process.

The memory calibration sheet 10 of the present invention is provided with a metal pin area 11 and a memory chip 12, and the memory wafer 12 is loaded with identification information of the same type and the same batch of electrochemical test strips 20, including the type of the electrochemical test strip 20. , the batch number, the use period, the calculation formula and the calibration data of the reagent, etc.; the metal pin area 11 is connected with the slot 103 of the electrochemical test strip reading device 100 to provide the identification and data transmission of the electrochemical test strip reading device 100 The function.

The memory calibration patch 10 is connected to the pins 1031 and 1032 in the slot 103 by a plurality of metal pins 1101 and 1102 in the metal pin region 11, wherein the metal pin 1101 is connected to the pin 1031, and the metal pin 1102 and the pin are connected. Bits 1032 are connected to provide the electrochemical coupon reading device 100 as a memory calibration patch 10. When the electrochemical test strip reading device 100 is recognized as the memory calibration sheet 10, the electrochemical test strip reading device 100 is activated (the aforementioned starting manner can be divided into automatic or manual, wherein the automatic starting is the method commonly used in the embodiment) a) Next, the electrochemical test strip reading device 100 starts reading the identification information carried in the memory chip 12 of the memory calibration sheet 10, and then transmits and stores the identification information to the micro-electrochemical test strip reading device 100. The database module 1051 of the processor 105 is configured to compare the fluid reaction signals emitted by the same batch of electrochemical test strips 20, The calculation module 1052 is provided to calculate the detection result.

In addition, the memory chip 12 disposed on the memory calibration sheet 10 of the present invention can automatically transmit and store the contained identification information into the database module 1051 of the microprocessor 105, and can be stored in the database module. The plurality of detection history records in 1051 are transmitted and stored in the memory chip 12 of the memory calibration sheet 10. Therefore, the memory chip 12 used in the present creation can transmit and store the identification information to the electrochemical test strip reading device 100. In addition to the database module 1051, the detection history stored in the database module 1051 can be restored to the memory chip 12 of the memory calibration sheet 10, that is, the function of bidirectional transmission and storage detection history is performed. Moreover, the memory calibration sheet 10 of the present invention can be used as an interface memory, and outputs a record such as a detection history and usage information, and can be transmitted with a decoder and can be remotely interpreted.

The electrochemical test strip 20 of the present invention is provided with an electrode region 21 and a fluid reaction region 22, and is connected to the pins 1031 and 1032 in the slot 103 by at least two electrodes 2101 and 2102 in the electrode region 21, wherein the electrode 2101 and the pin position 1031 is connected, and the electrode 2102 is connected to the pin 1032 to provide the electrochemical test strip reading device 100 as the electrochemical test strip 20. A plurality of electrodes 2103, 2104 are disposed in the electrode region 21 and connected to the blood sample 221 in the fluid reaction zone 22 to detect a fluid reaction signal generated by the blood sample 221 due to a chemical reaction. When the electrochemical test strip reading device 100 is determined to be the correct electrochemical test strip 20 after the alignment, the electrochemical test strip reading device 100 is activated, and then the blood sample 221 is initially injected into the electrochemical test strip 20. The fluid reaction zone 22 is connected to the blood sample 221 in the fluid reaction zone 22 by a plurality of electrodes 2103, 2104. When the blood sample 221 generates a fluid reaction signal due to a chemical reaction, the electrode of the electrochemical test strip 20 is passed. The connection of the region 21 to the pin 103 of the electrochemical test strip reading device 100 can conduct the fluid reaction signal to the electrochemical test strip reading device 100, and read the electrochemical test through the current detecting conversion circuit 104. The fluid reaction signal generated by the fluid reaction zone 22 of the film 20 is compared with the plurality of pen identification information stored in the database module 1051, and then submitted to the computing module 1052 for electrochemical testing. The calculation formula corresponding to the slice 20 and the reagent correction data are calculated, and the calculation result is displayed on the display 102. If the electrochemical test strip reading device 100 When the electrochemical test strip 20 is determined to be erroneous after the comparison, the electrochemical test strip reading device 100 cannot be automatically activated. At this time, the electrochemical test strip 20 is exited and the operation mode is displayed to ensure that the detection process is correctly used. Electrochemical test strip 20.

The identification information contained in the memory calibration sheet 10 of the present invention is automatically stored in the electrochemical test strip reading device 100, so that it is convenient to compare whether the electrochemical test strip 20 to be used is correct, compared to the past. The test instrument used must be in the presence of the calibration sheet to test the test piece. This creation records all the read identification information, which not only prevents the user from obtaining the test piece due to the loss of the calibration piece. Identifying information more effectively improves the convenience of detection. Furthermore, the memory calibration sheet 10 of the present invention can perform remote interpretation by means of a decoder for remote medical related services, and can provide remote medical consultation through connection, for medical care in home care and remote areas. great help.

Referring to FIG. 1A, FIG. 1B and FIG. 2A and FIG. 2B again, in the second embodiment proposed by the present invention, in addition to the first embodiment as shown above, the identification information contained in the memory calibration sheet 10 is automatically stored to the electrochemical In the test strip reading device 100, in order to provide the information required for the electrochemical test strip 20 to be used, in order to make the detection result more accurate, the present invention further sets the standard resistor 13 on the memory calibration sheet 10 and in the memory. The memory chip 12 is disposed on the calibration sheet 10 to store standard resistance parameter values to assist in correcting the detection error of the electrochemical test strip reading device 100 due to instrument aging.

Referring to FIG. 1A and FIG. 1B, when the memory calibration sheet 10 is connected to the pins 1031 and 1032 in the slot 103 by a plurality of metal pins 1101 and 1102, it is recognized by the electrochemical test strip reading device 100 as a memory calibration sheet. At 10 o'clock, the electrochemical test strip reading device 100 reads the identification information carried in the memory chip 12 of the memory calibration sheet 10, including the type, batch number, use period, calculation formula, and reagent correction data of the electrochemical test strip 20. In addition, the standard resistance parameter values stored in the memory chip 12 are read, and the read identification information and the standard resistance parameter values are stored in the database module 1051 of the microprocessor 105. In addition, the standard resistor 13 provided on the memory calibration sheet 10 is connected to the metal pin 1103 in the metal pin region 11, and the electrochemical test strip reading device 100 passes through the pins 1031, 1032 in the slot 103 thereof. Memory patch 10 metal pin area 11 The signal generated by the standard resistor 13 of the memory calibration chip 10 is read, and the signal is transmitted to the current detecting conversion circuit 104 of the electrochemical test strip reading device 100, and then sent to the microprocessor 105 for calculation. The standard resistance signal is compared with the standard resistance parameter value stored in the database module 1051 to obtain a calibration deviation value, and then the calibration deviation value is returned to the electrochemical test strip reading device 100. In the database module 1051, the calibration offset value is used as the compensation value used by the subsequent electrochemical test strip reading device 100 to detect the electrochemical test strip 20, that is, to automatically correct the electrochemical test strip reading device 100. The detection error generated when the electrochemical test strip 20 is detected.

Therefore, referring to FIG. 1A and FIG. 1B, the electrochemical test strip reading apparatus 100 of the second embodiment of the present invention, in addition to the identification of the electrochemical test strip 20 carried in the memory wafer 12 for reading the memory calibration patch 10, In addition to the information, the standard resistance parameter value of the standard resistor 13 stored in the memory chip 12 is read, and the identification information and the standard resistance parameter value are stored in the database module 1051 for subsequent comparison. The electrochemical test strip 20 is operated to generate a detection result. On the other hand, the electrochemical test strip reading apparatus 100 obtains a standard resistance signal by connecting the standard resistor 13 on the memory calibration sheet 10, and compares it with the standard resistance parameter value. A calibration deviation value is generated, and the calibration deviation value is returned to the database module 1051 of the electrochemical test strip reading device 100 to notify the electrochemical test strip reading device 100 that there is a detection error, and the obtained calibration error is obtained. The calibration deviation value will be used as the compensation value when the subsequent electrochemical test strip 20 is inspected, that is, the electrochemical test strip reading device 100 is automatically compensated, and when the calibration deviation value is still within the allowable range, Standard deviation standard resistance value to compensate for the signal, and the detection results so obtained correction mechanism, will be more and more accurate reference value.

Referring to FIG. 2A and FIG. 2B, according to the calibration procedure of the electrochemical test strip reading apparatus 100 described above, when the electrochemical test strip 20 has the plurality of electrodes 2101, 2102 formed in the electrode region 21 and the legs in the slot 103, When the bits 1031 and 1032 are connected, the electrochemical test strip reading device 100 first recognizes whether it is an electrochemical test strip according to the above-mentioned connection relationship between the electrode and the foot position, and then performs the identification information comparison of the electrochemical test strip 20 To determine if it is the correct electrochemical test piece, if it is correct The electrochemical test piece activates the electrochemical test strip reading device 100 and enters an operation mode. After the sample is input into the fluid reaction zone 22, a fluid reaction signal is generated by a chemical reaction, and the released fluid is read by the current detecting conversion circuit 104. Reaction signal. And the calibration offset value is compensated to the fluid reaction signal by the automatic compensation error program of the electrochemical test strip reading device 100, and then the operation module 1052 calculates the detection result.

For example, before performing the blood glucose test, the calibration procedure is performed with the memory calibration sheet 10, and the standard resistance signal to be measured after the original memory calibration sheet 10 is connected to the electrochemical test strip reading device 100 is "150". And the standard resistance parameter value "150" stored in the database module 1051 is matched, and the obtained compensation value is "0", which represents the detection reading value of the electrochemical test strip reading device 100 at this time. It is correct. However, after long-term use, it is inevitable that the machine will age or be in contact with the test piece. The standard resistance signal measured at this time may be reduced to "145", and the standard resistance parameter value stored in the database module 1051 may be passed through. After the comparison of 150", a calibration deviation value of "5" is obtained, and the calibration deviation value "5" is automatically restored to the database module 1051 of the electrochemical test strip reading device 100 as a subsequent detection electrochemical test strip. At 20 o'clock, the compensation value of the detection result is provided, and the error warning existing in the electrochemical test strip reading device 100 is provided, and when the calibration deviation value is within the allowable range, the detection reading value of the electrochemical test strip 20 is automatically compensated.

Such information is automatically stored in the electrochemical test strip reading device 100 by the information that the identification information carried on the memory calibration sheet 10 includes the type, batch number, use period, and calculation formula corresponding to the batch number of the electrochemical test strip 20 In order to compare whether the electrochemical test piece 20 to be used is correct, the electrochemical test piece reading device 100 is provided with a function of automatically compensating for the detection error, and in addition to providing convenience in detection, the accuracy of the detection result is further improved.

The above descriptions are only examples of the present invention, and are not intended to limit the patent application rights of the present invention; the above descriptions should be understood and implemented by those skilled in the art, and thus others are not disclosed in the present disclosure. Equivalent changes or modifications made under the spirit shall be included in the scope of the patent application.

100‧‧‧Electrochemical test strip reading device

10‧‧‧Memory calibration sheet

11‧‧‧Metal pin area

1101, 1102, 1103‧‧‧ metal pins

12‧‧‧ memory chip

13‧‧‧Standard resistance

20‧‧‧Electrochemical test strips

21‧‧‧electrode area of electrochemical test piece

2101, 2102, 2103, 2104‧‧‧ electrodes

22‧‧‧ fluid reaction zone

101‧‧‧shell

102‧‧‧ display

103‧‧‧Slots

1031, 1032‧‧‧ feet in the slot

104‧‧‧Current detection switching circuit

105‧‧‧Microprocessor

1051‧‧‧Database Module

1052‧‧‧ Computing Module

106‧‧‧ operation buttons

1A is a schematic structural view showing an electrochemical test strip reading device and a memory calibration sheet used therein according to the first and second embodiments of the present invention.

FIG. 1B is a schematic structural view showing the connection relationship between the pins of the slot in the electrochemical test strip reading device and the metal pins of the memory calibration sheet according to the first and second embodiments of the present invention.

2A is a schematic structural view showing an electrochemical test strip reading device and an electrochemical test strip used therein according to the first and second embodiments of the present invention.

2B is a schematic structural view showing the connection relationship between the pins of the slot in the electrochemical test strip reading device and the electrodes of the electrochemical test strip according to the first and second embodiments of the present invention.

10‧‧‧Memory calibration sheet

11‧‧‧Metal pin area

12‧‧‧ memory chip

13‧‧‧Standard resistance

100‧‧‧Electrochemical test strip reading device

101‧‧‧shell

102‧‧‧ display

103‧‧‧Slots

104‧‧‧Current detection switching circuit

105‧‧‧Microprocessor

1051‧‧‧Database Module

1052‧‧‧ Computing Module

106‧‧‧ operation buttons

Claims (9)

An electrochemical test strip reading device for detecting an electrochemical test strip (20), comprising: a memory calibration sheet (10) having a metal pin region (11), a memory chip (12) and a a standard resistor (13), wherein the memory chip (12) carries identification information of one of the electrochemical test strips (20) and a standard resistance parameter value of the memory calibration sheet (10); a housing (101); A display (102) is disposed on the housing (101); a slot (103) is disposed on the housing (101) to provide the memory calibration sheet (10) and the electrochemical test strip (20) Inserted, the slot (103) includes a plurality of pins (1031, 1032); a current detecting conversion circuit (104) is disposed in the housing (101), and the current detecting switching circuit (104) transmits the The slot (103) reads a standard resistance signal of the standard resistor (13) of the memory calibration piece (10) and a fluid reaction signal released by the fluid reaction zone (22) of the electrochemical test piece (20). And a microprocessor (105) disposed in the housing (101), having: a database module (1051) storing a plurality of the identification information, the standard resistance parameter value, the standard resistance signal, and The a body reaction signal; and an operation module (1052), reading the identification information of the electrochemical test piece (20) in the database module (1051), comparing the fluid reaction signal with the identification information, and calculating A detection result is generated; wherein the memory calibration piece (10) is connected to the slot (103) by the metal pin area (11), so that the electrochemical test piece reading device (100) recognizes the memory calibration piece (10), and reading the identification information and the standard resistance parameter value contained in the memory chip (12), and reading the standard resistance signal of the standard resistor (13). The electrochemical test strip reading device according to claim 1, wherein the standard deviation signal is compared with the standard resistance parameter value to generate a calibration deviation value when the electrochemical test strip (20) When connected to the slot (103), the detection error generated by the electrochemical test strip reading device (100) when detecting the electrochemical test strip (20) is compensated according to the calibration deviation value. The electrochemical test strip reading device according to claim 1, wherein the identification information carried by the memory chip (12) of the memory calibration sheet (10) comprises a type of the electrochemical test strip (20). Batch number Calculate formula, expiration date and reagent calibration data. The electrochemical test strip reading device according to claim 1, wherein the memory calibration sheet (10) has a plurality of metal pins (1101, 1102) formed by the metal pin region (11) and the When the pins (1031, 1032) in the slot (103) are connected, the electrochemical test strip reading device (100) is activated, and the electrochemical test strip reading device (100) reads the memory calibration sheet ( 10) the identification information and the standard resistance parameter value, and transmitting and storing the identification information and the standard resistance parameter value to the database module of the electrochemical test strip reading device (100) (1051) )in. The electrochemical test strip reading device according to claim 4, wherein the electrochemical test strip reading device is connected when the memory calibration sheet (10) is connected to the electrochemical test strip reading device (100) (100) reading the standard resistance signal of the standard resistor (13) of the memory calibration piece (10) through the current detecting conversion circuit (104), and handing the standard resistance signal to the microprocessor (105) Storage and calculation. The electrochemical test strip reading device according to the first aspect of the invention, wherein the electrochemical test strip (20) has an electrode region (21) formed with a plurality of electrodes (2101, 2102), the electrodes (2101, 2102) is connected to the pins (1011, 1032) in the slot (103), and the electrochemical test strip reading device (100) recognizes the electrochemical test strip (20). The electrochemical test strip reading device according to claim 6, wherein when the electrochemical test strip (20) is recognized, the electrochemical test strip reading device (100) is activated by the current test The conversion circuit (104) reads the fluid reaction signal released by the fluid reaction zone (22) of the electrochemical test strip (20). The electrochemical test strip reading device according to claim 7, wherein the fluid reaction signal is compensated by the detection deviation value, and then the calculation result is calculated by the operation module (1052). The electrochemical test strip reading device of claim 1, wherein the memory chip (12) of the memory calibration sheet (10) further comprises a memory module (1051) that has been stored in the library module (1051). The function of accessing the memory test chip (12) by the plurality of test history functions is to perform a bidirectional transfer between the electrochemical test strip reading device (100) and the memory calibration sheet (10).