JP2009109385A - Immunochromatography device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an immunochromatography device that performs inspection, using an immunochromatography method efficiently and can prevent wrong inspections. <P>SOLUTION: The immunochromatography device has a read means for reading the color identification state of a reagent immobilization section, while a specimen to which an analyte is spotted to a porous carrier having the reagent immobilization section is loaded; and a control means for performing the drive control and inspection processing of the read means. In the immunochromatography device, the control means performs inspection processing using data obtained by reading the color identification state of the reagent, at the lapse of reaction completion time Tr1-Tr6, according to the reagent after the specimen is loaded. The reagent immobilization section includes a reagent immobilization section for inspection for determining inspection items, and a reagent immobilization section for confirmation for confirming the appropriate development of the analyte in the porous carrier. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an immunochromatography apparatus that performs an inspection by reading a reagent coloration state of a test piece using an immunochromatography method.

  In recent years, an immunochromatography apparatus has been used as an inspection apparatus for POCT (Point of Care Testing) that performs an examination regardless of a clinical examination expert in a clinic, a clinic, or a home medical field. FIG. 7 shows an example of a conventional immunochromatography apparatus (for example, Patent Document 1). The immunochromatography apparatus X shown in the figure is loaded with a test piece Y. The test piece Y includes a porous carrier 91 having a plurality of reagent fixing portions 92 on which reagents are fixed. When blood or urine, which is a specimen, is spotted on the test piece Y, the specimen penetrates into the porous carrier 91. When the sample reaches the reagent fixing unit 92, the sample and the reagent react. The reagent fixing unit 92 exhibits a color reaction according to the concentration of the specific component contained in the specimen.

  The immunochromatography apparatus X includes a light emitting means 93 and a light receiving means 94. When the test piece Y is loaded into the immunochromatography apparatus X, a test start command is sent to the controller 95, for example, by a user operation. The controller 95 performs a light emission process for causing the light emitting means 93 to emit light, and a light receiving process for receiving the light reflected by the porous carrier 91 including the reagent fixing portion 92 by the light receiving means 94. When the signal from the light receiving means 94 is transferred to the controller 95, image data of a portion including the reagent fixing portion 92 in the porous carrier 91 is accumulated in the controller 95. By analyzing this image data, for example, the presence or absence of a specific component contained in the specimen can be determined according to the coloration state of the reagent fixing unit 92. This inspection result is output by output means 96 such as a printer. The user can easily recognize the presence or absence of a specific component of the specimen from the output result.

  However, it is necessary to elapse the reaction completion time corresponding to the reagent until the reaction is completed so that the test can be appropriately performed after the specimen is spotted on the test piece Y. For this reason, the user is forced to measure the time until the test is performed by the immunochromatography apparatus X after the specimen is spotted on the test piece Y.

  For example, in the case of an influenza test, it is necessary to test a large number of patients in a short time in one clinic. In this case, it is compelled to manage the reaction completion time for each of a large number of specimens Y spotted from different patients at different timings. Moreover, in order to inspect these test pieces Y without delay, it is necessary to devise a technique such as intentionally shifting the timing at which the specimen is spotted on the test piece Y.

  In the case of an allergy test, it is necessary to test many items for one patient. For this reason, when a sample is collected once, this sample is spotted on a large number of test pieces Y. Since these test pieces Y have different inspection items, there may be cases where the reaction completion time during which an appropriate inspection can be performed is different. It was very complicated to repeatedly load and inspect the immunochromatography apparatus X while managing different reaction completion times for a large number of test pieces Y.

  Furthermore, some of the reagents fixed to the reagent fixing unit 92 may change color after an unreasonably long period of time has elapsed after being colored once by reaction with the specimen. In such a case, if the test piece Y on which the sample has been spotted is left unintentionally for a long time, an appropriate test result may not be obtained even if the test piece Y is loaded in the immunochromatography apparatus X. large.

JP 2006-250787 A

  The present invention has been conceived under the circumstances described above, and provides an immunochromatography apparatus capable of efficiently performing a test using an immunochromatography method and preventing an erroneous test. Is the subject.

  The immunochromatography apparatus provided by the present invention includes a porous carrier having one or more reagent fixing parts to which a reagent is fixed, and one or more test pieces having a specimen spotted on the porous carrier. An immunochromatography apparatus, comprising: a reading unit that reads a color state of the reagent fixing unit in a loaded state; and a control unit that performs drive control and inspection processing of the reading unit. After the reaction completion time corresponding to the reagent has elapsed since the test piece was loaded, the test process is performed using the data obtained by reading the color state of the reagent, and the reagent fixing unit A test reagent immobilization section for determining items, and a confirmation reagent immobilization for confirming that the specimen is properly developed in the porous carrier. The control means has completed the color reaction in the confirmation reagent fixing unit before the development duration time shorter than the reaction completion time has elapsed since the test piece was loaded. When this is detected, the inspection of the test piece is stopped.

  According to such a configuration, it is not necessary for the user to measure the time until the specimen can be inspected after being spotted on the test piece. For this reason, the user can continue the operation of spotting the specimen on other test pieces. In addition, the test piece loaded in the immunochromatography apparatus is reliably inspected after an appropriate time has elapsed. Therefore, the inspection using the immunochromatography apparatus can be performed efficiently. Furthermore, when the test piece is spotted on the test piece, but the test piece is left unattended due to a lack of work or the like, an appropriate test result cannot often be obtained from the test piece. According to the above-described configuration, it is possible to prevent the test piece left unjustly left from being inspected by reading the coloration state of the confirmation reagent fixing unit during the development duration time.

  In a preferred embodiment of the present invention, the control means uses the result obtained by reading the confirmation reagent fixing part for the first time by the reading means after the test piece is loaded, in the confirmation reagent fixing part. It is determined whether or not the color reaction has been completed. According to such a configuration, it is possible to appropriately exclude the test piece that has been left for a long time so that the development of the sample has already been completed when the sample is loaded into the immunochromatography apparatus. In addition, the next test piece can be inspected by interrupting the inspection process immediately after the loading operation. This is suitable for efficiently inspecting a large number of test pieces.

  In a preferred embodiment of the present invention, the inspection item information recorded on the test piece is read, and the reaction completion time is set based on the inspection item information. According to such a configuration, it is unnecessary for the user to manually input the reaction completion time corresponding to the inspection item.

  In preferable embodiment of this invention, the sensor which detects that the said test piece was loaded is further provided. According to such a configuration, measurement of the reaction completion time can be automatically started.

  In a preferred embodiment of the present invention, a plurality of the test pieces can be loaded. According to such a configuration, for example, when an influenza test is performed on a plurality of patients or when a plurality of allergy tests are performed on a single patient, the operation of spotting a specimen on the test piece and the above Inspection processing by an immunochromatography apparatus can be performed efficiently.

  In a preferred embodiment of the present invention, the plurality of test pieces can be loaded in a state aligned in one direction, and the reading unit scans the plurality of test pieces in the arrangement direction. . According to such a configuration, the reading process can be performed uniformly on all of the plurality of test pieces by the reading unit.

  In a preferred embodiment of the present invention, the reading means scans after the test piece is loaded and before the reaction completion time has elapsed. According to such a configuration, the inspection process can be performed without delay after the reaction completion time has elapsed.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  1 and 2 show an example of an immunochromatography apparatus according to the present invention. The immunochromatography apparatus A according to this embodiment includes a case 1, a reading unit 2, a controller 3, and a printer 4, and can perform an inspection using an immunochromatography method by reading a loaded test piece B. It is configured. In FIG. 2, case 1 is omitted for the sake of understanding.

  3 and 4 show a test piece B loaded in the immunochromatography apparatus A. FIG. The test piece B is a place where the spotted specimen reacts with the reagent, and has a shape and size suitable for inspection by the immunochromatography apparatus A. The test piece B has a case 6, a porous carrier 7, and reagent fixing portions 8A, 8B, and 8C. The test piece B shown in the figure is used for influenza testing and the like.

  The case 6 has an elongated shape made of, for example, white resin, and accommodates the porous carrier 7. The case 6 has a spotting part 61, a measurement window 62, an examination item code 63, and a patient information entry column 64. The spotting part 61 is a part for spotting a specimen, and includes a through hole that exposes a part near one end of the porous carrier 7 and a crater-like part surrounding the through hole. The measurement window 62 is an elongated through hole provided near the center of the case 6 and exposes the reagent fixing portions 8A, 8B, 8C formed on the porous carrier 7. The inspection item code 63 is a portion in which inspection item data that can be inspected by the test piece B is recorded, and is printed as, for example, a two-dimensional code. The patient information entry column 64 is an area for handwriting information on a patient to be examined, such as a name.

  The porous carrier 7 is a member for spreading the specimen spotted from the spotting section 61 so as to exceed the reagent fixing sections 8A, 8B, 8C, and is a strip-shaped member made of, for example, nitrocellulose. The reagent fixing portions 8A, 8B, and 8C are portions where the reagent is fixed to the porous carrier 7. In the present embodiment, the reagent fixing parts 8A and 8B are, for example, reagents in which a reagent for determining whether positive or negative in an influenza test is fixed in a linear shape extending in the width direction of the porous carrier 7, It is called a test line (test reagent fixing part). The reagent fixing unit 8C is used to determine that the specimen has appropriately passed through the reagent fixing units 8A and 8B, which are test lines, and is generally called a control line (confirmation reagent fixing unit). The reagent fixing portion 8 </ b> C is formed by fixing a reagent that develops color by reacting with a specimen in a linear shape extending in the width direction of the porous carrier 7.

  As shown in FIG. 1, the case 1 of the immunochromatography apparatus A is made of, for example, resin, and houses the reading means 2, the controller 3, and the printer 4 that are other components of the immunochromatography apparatus A. The case 1 is formed with a loading portion 11. The loading unit 11 is a portion for loading the test piece B on which the specimen is spotted. In the present embodiment, the loading unit 11 is divided into CH1 to CH6, and six test pieces B can be loaded at an arbitrary timing and number. A plurality of LED lamps are provided immediately above the loading unit 11. These LED lamps light up in a color indicating a loaded state when the test piece B is loaded at a position immediately below each of the loading unit 11. Further, when the inspection of the test piece B is completed, it is lit in a color indicating the completion of the inspection. As shown in FIG. 2, the loading unit 11 is provided with six sensors 12. These sensors 12 are used to detect which of CH1 to CH6 is loaded with the test piece B.

  As shown in FIG. 2, the reading means 2 includes light emitting modules 21A, 21B, and 21C and light receiving sensor modules 22A and 22B. The light emitting modules 21A, 21B and the light receiving sensor module 22A have a function of reading the reagent fixing portions 8A, 8B, 8C through the measurement window 62 of the test piece B and a function of reading the inspection item code 63. The light emitting module 21C and the light receiving sensor module 22B have a function of reading the patient information entry column 64. As the reading means 2, in addition to the configuration in which the light emitting modules 21A, 21B, 21C and the light receiving sensor modules 22A, 22B are integrally supported and driven, for example, the light emitting modules 21A, 21B and the light receiving sensor module 22A, The module 21C and the light receiving sensor module 22B may be supported and driven separately.

  The light emitting modules 21A and 21B are modules in which, for example, LEDs are built, and emit light having different wavelengths. The light emitted from the light emitting modules 21 </ b> A and 21 </ b> B is linear light extending in the longitudinal direction of the test piece B. The light receiving sensor module 22A has, for example, a configuration in which a plurality of photodiodes are arranged, or a configuration having an optical sensor such as an area sensor, and generates an output corresponding to the luminance of the received light. The light receiving range of the light receiving sensor module 22 </ b> A is a thin band extending in the longitudinal direction of the test piece B. In the present embodiment, when the reading means 2 is positioned immediately above a certain test piece B, the light receiving sensor module 22A faces the measurement window 62, and the light emitting modules 21A and 21B sandwich the light receiving sensor module 22A. The light is irradiated at an angle of about 45 degrees. By selectively irradiating light of different wavelengths from the light emitting modules 21A and 21B, the reagent fixing portions 8A, 8B and 8C can be read as image data of at least two kinds of hues.

  The light emitting module 21C is a module in which, for example, an LED is built, and irradiates light with a predetermined wavelength. The light emitted from the light emitting module 21 </ b> C is linear light extending in the longitudinal direction of the test piece B. The light receiving sensor module 22B has, for example, a configuration in which a plurality of photodiodes are arranged, or a configuration having an optical sensor such as an area sensor, and generates an output corresponding to the luminance of the received light. The light receiving range of the light receiving sensor module 22B is a thin band extending in the longitudinal direction of the test piece B. In the present embodiment, when the reading means 2 is positioned immediately above a certain test piece B, the light receiving sensor module 22B faces the patient information entry column 64, and the light emitting module 21C is 45 degrees with respect to the patient information entry column 64. It is arranged to irradiate light at a certain angle.

  The reading unit 2 is reciprocally movable directly above the six test pieces B loaded in the loading unit 11. Specifically, it is slidably supported by a guide bar (not shown) extending in the direction in which the six test pieces B are arranged, and driving means such as a motor, a pulley, and a belt (all not shown). Driven by. When the reading unit 2 reciprocates directly above the six test pieces B, the light emitting modules 21A and 21B and the light receiving sensor module 22A can alternately read the measurement windows 62 and the inspection item codes 63 of the six test pieces B. . At the same time, the light emitting module 21B and the light receiving sensor module 22B can sequentially read the patient information entry fields 64 of the six test pieces B. Even when all the six test pieces B are not loaded in the loading unit 11, the reading unit 2 can perform a reading process on the loaded test pieces B.

  The controller 3 includes, for example, a CPU, a ROM, a RAM, and an interface. The CPU controls the entire immunochromatography apparatus A. The ROM stores various programs and parameters for processing performed by the CPU. The RAM temporarily stores programs, measurement results, and the like. The interface performs an input / output function of the controller 3.

  The printer 4 is a device that outputs an inspection result for the test piece B, and includes, for example, a thermal print head. When the inspection of the test piece B is completed in the immunochromatography apparatus A, the inspection result corresponding to the inspection item is printed as shown in FIG.

  Next, the inspection using the immunochromatography apparatus A will be described below.

  FIG. 5 shows an embodiment of an inspection using the immunochromatography apparatus A. In this figure, the horizontal axis represents time, and the reaction progress curves Cvc and Cvt indicate the progress of the reaction for each test piece 6 loaded in CH1 to CH6. The reaction progress curve Cvc indicates the progress of the reaction in the reagent fixing portions 8A and 8B that are test lines, and the reaction progress curve Cvt indicates the progress of the reaction in the reagent fixing portion 8C that is the control line.

  The reference levels Lvc and Lvt drawn by dotted lines indicate the degree of reaction between the specimen and the reagent that can be determined for a certain test item. That is, when the reaction progress curve Cvc exceeds the reference level Lvc, it can be determined from the color state whether the influenza is positive or negative. When the reaction progress curve Cvt exceeds the reference level Lvt, it is determined that the sample spotted on the spotting portion 61 has developed in the porous carrier 7 beyond the reagent fixing portions 8A and 8B to the reagent fixing portion 8C. . In the reaction in the reagent fixing parts 8A and 8B, even if the specimen is positive, the coloration state changes to a negative state when time passes. In this figure, it is expressed that the reaction progress curve Cvc falls below the reference level Lvc again because the unsuitable state of the coloration state is not suitable for the inspection.

  The alternate long and short dash line in this figure indicates the trajectory of the reading means 2 that reciprocates CH1 to CH6. In this example, influenza tests were performed on six patients. Samples collected from these patients were spotted on the test piece B, and the work of loading the test piece B into the loading unit 11 was sequentially performed. In the six test pieces B, the name of each patient is entered in the patient information entry column 64.

  First, the test piece B on which the specimen was first spotted was loaded into CH1 of the loading unit 11. A loading signal is sent from the sensor 12 that has detected this loading to the controller 3. Further, the reading means 2 performs the reagent fixing portions 8A, 8B, 8C and the inspection item code 63 in the reading process Pf (double circle mark and double triangle mark in the figure) when passing for the first time immediately above the test piece B of CH1. Read.

  The test piece B loaded in CH1 is loaded quickly after the sample is spotted. Accordingly, the color reaction of the reagent fixing unit 8C is not recognized from the result of analyzing the image data of the reagent fixing unit 8C obtained by the reading process Pf. Accordingly, the controller 3 recognizes that the sample is in an appropriate state that has not yet reached the reagent fixing unit 8C as the control line, and continues the subsequent examination processing.

  The controller 3 sets a reaction completion time Tr1 corresponding to the inspection item described in the inspection item code 63 for CH1. A plurality of reading processes Pt (circles and triangles in the figure) are performed every time the reading means 2 crosses CH1 from the CH1 loading time determined by the detection of the sensor 12 until the reaction completion time Tr1 elapses. In the reading process Pt, reading of the reagent fixing portions 8A, 8B, and 8C is repeated. In this example, the result read within the reaction completion time Tr1 is not used for the inspection. Then, after the reaction completion time Tr1 elapses, the reading results of the fixing portions 8A, 8B, and 8C obtained by the reading process P (black circle mark and black triangle mark in the figure) that is performed first are used for the influenza test. Since the reaction completion time Tr1 has elapsed since the test piece B was loaded in CH1, the reaction progress curve Cvc exceeds the reference level Lvc at the time of the reading process P.

  In parallel with the inspection process in CH1 described above, the inspection processes for CH2 to CH6 are performed. In this example, the inspection items of the test pieces B loaded in CH1 to CH6 are the same, and the reaction completion times Tr1 to Tr6 are the same. For this reason, the reading process used for the inspection is performed in the order of loading with respect to CH1 to CH6.

  Here, attention is focused on the test piece B loaded in CH4. The test piece B has been subjected to an inappropriate process in which the specimen is not immediately loaded after being spotted and left for a while. For this reason, when loaded into CH4, the specimen has developed in the porous carrier 7, and has reached the reagent fixing part 8C beyond the reagent fixing parts 8A and 8B. Therefore, the controller 3 recognizes that the color reaction of the reagent fixing unit 8C is completed as a result of the reading process Pf. Then, the controller 3 interrupts the inspection process for the test piece B without performing the reading processes Pt and P after the reading process Pf.

  The term “development duration” as used in the present invention refers to a case where a specimen is a porous carrier in the immunochromatography apparatus A when the work from the spotting of the specimen on the test piece B to being loaded into the immunochromatography apparatus A is appropriately performed. 7 is the time that is assumed to be the minimum required to develop the inside 7 in order to the reagent fixing portions 8A, 8B, and 8C. In the present embodiment, in the reading process Pf that is performed when the reading unit 2 crosses the test piece B for the first time after the test piece B is loaded, the development of the sample is unreasonably completed from the colored state of the reagent fixing unit 8C. Judge whether or not. This corresponds to setting the development duration time to the time from when the reading means 2 crosses the test piece B to the next crossing. Unlike the present embodiment, the configuration may be such that the completion of the specimen development is determined based on the coloration state of the reagent fixing unit 8C obtained by a certain reading process Pt. The expansion duration time can be arbitrarily set depending on how many times the reading process Pt is used for this determination. However, the expansion duration does not exceed the reaction completion times Tr1 to Tr6.

  The test results for the samples collected from six patients are sequentially printed by the printer 4 as shown in FIG. The contents to be printed include the date and time, the identification number, the loading position (any one of CH1 to CH6), the examination item, the examination result, and the name described in the patient information entry column 64. This printed name is the image data printed in the patient information entry field 64 read by the light receiving sensor module 22B of the reading means 2 as it is. In the controller 3, image processing such as binarization processing is appropriately performed on the image data in the patient information entry field 64 for the purpose of clear printing. In the present embodiment, since it is determined that the test piece B loaded in CH4 has been subjected to inappropriate processing, the character “NG” is printed on the portion indicating the test result of the test piece B. ing.

  Next, the operation of the immunochromatography apparatus A will be described.

  According to the present embodiment, it is not necessary for the user to measure the time until the test can be performed after the sample is spotted on the test piece B. For this reason, the user can continue the operation of spotting the specimen on the other test piece B. Further, the test piece B loaded in the immunochromatography apparatus A is reliably inspected after an appropriate time has elapsed. Therefore, the inspection using the immunochromatography apparatus A can be performed efficiently.

  In addition, when a specimen is spotted on the test piece B, but the test piece B is left unattended due to a lack of work, an appropriate test result cannot often be obtained from the test piece B. According to this embodiment, like the test piece B loaded in CH4 shown in FIG. 5, the test is left unjustly by reading the coloration state of the reagent fixing part 8C as the control line immediately after loading. It is possible to prevent the piece B from being inspected.

  By reading the inspection item code 63, the reaction completion times Tr1 to Tr6 are automatically set. This eliminates the need for the user to manually input the reaction completion times Tr1 to Tr6 corresponding to the inspection items. Further, the controller 3 can accurately grasp the loading time of the test piece B by the sensor 12. Thereby, measurement of reaction completion time Tr1-Tr6 can be started automatically.

  Thus, according to the immunochromatography apparatus A, the user can obtain an appropriate test result simply by loading the test piece B into the immunochromatography apparatus A. For this reason, although it is the structure which can load a maximum of six test pieces B, it can prevent that a user's operation | work becomes unreasonably complicated. Even if the test piece B is left unattended despite considerable attention, the immunochromatography apparatus A substantially excludes such a test piece B.

  Such an immunochromatography apparatus A is suitable for performing a large number of influenza tests in order and efficiently as in the above-described example. In addition to this, for example, even when an influenza test and an allergy test coexist, such as when tests with different reaction completion times are performed, it is possible to avoid complicated test work. Since the immunochromatography apparatus A can perform from the loading to the result output fully automatically, it is only necessary to provide a power button as an operation means for the user to operate.

  When the reading unit 2 is configured to sequentially scan CH1 to CH6, the reading processes Pf, Pt, and P can be performed uniformly on all the test pieces B loaded in the loading unit 11. Since the reading unit 2 is configured to collectively read the strip-like region extending in the longitudinal direction of the test piece B, that is, the direction perpendicular to the scanning direction, all reading can be performed only by the reading unit 2 scanning CH1 to CH6. Processing can be performed. For this reason, it is not necessary to further scan the reading means 2 in the longitudinal direction of the test piece B in addition to the scanning direction described above. Thereby, the time required for reading can be shortened. Further, the time required for the reading means 2 to perform one reciprocating scan can be arbitrarily set as the unit of the unfolding duration referred to in the present invention.

  The immunochromatography apparatus according to the present invention is not limited to the embodiment described above. The specific configuration of each part of the immunochromatography apparatus according to the present invention can be varied in design in various ways.

  The number of test strips B that can be loaded into the immunochromatography apparatus A is not limited to the above-described embodiment, and may be more or less than six. The greater the number of test pieces B that can be loaded, the more advantageous is the efficient inspection. Of course, even if the number of chargeable units is one, it is possible to obtain the advantage that the user does not need to measure the reaction completion time. The configuration in which the examination item code 63 and the patient information entry column 64 are read by the reading unit 2 is suitable for automatic examination, but the present invention is not limited to this. When a slight burden on the user is allowed, for example, a configuration may be adopted in which inspection items and reaction completion time are manually input. The reading means 2 only needs to be configured to appropriately read the reagent fixing portions 8A, 8B, and 8C, and is not limited to a configuration in which the irradiation light and the light receiving range extend in the longitudinal direction of the test piece B. The immunochromatography apparatus of the present invention can be used for various tests using immunochromatography.

1 is an overall perspective view showing an example of an immunochromatography apparatus according to the present invention. It is a system block diagram which shows the immunochromatography apparatus shown in FIG. It is a top view which shows an example of the test piece with which the immunochromatography apparatus shown in FIG. 1 is loaded. It is sectional drawing which follows the IV-IV line of FIG. It is a chart which shows one Example of the test | inspection by the immunochromatography apparatus shown in FIG. It is a top view of the sheet | seat which shows the result of the test | inspection by the immunochromatography apparatus shown in FIG. It is a system block diagram which shows an example of the conventional immunochromatography apparatus.

Explanation of symbols

A Ammunochromatography apparatus B Specimen Cvc, Cvt Reaction progress curve Lvc, Lvt Reference level P, Pf, Pt Reading process Tr1-Tr6 Reaction completion time 1 Case 2 Reading means 3 Controller (control means)
4 Printer 6 Case 7 Porous carrier 8A, 8B (For inspection) Reagent fixing part 8C (For confirmation) Reagent fixing part 11 Loading part 12 Sensors 21A, 21B, 21C Light emitting module 22A, 22B Light receiving sensor module 61 Spot attaching part 62 Measurement Window 63 Test item code 64 Patient information entry field

Claims (7)

A porous carrier having one or more reagent fixing parts to which a reagent is fixed, and one or more test pieces on which a specimen is spotted are loaded on the porous carrier;
Reading means for reading the coloration state of the reagent fixing part;
Control means for performing drive control and inspection processing of the reading means;
An immunochromatography apparatus comprising:
The control means performs an inspection process using data obtained by reading the color state of the reagent after the reaction completion time corresponding to the reagent has elapsed since the test piece was loaded,
The reagent fixing unit includes a test reagent fixing unit for determining a test item, and a confirmation reagent fixing unit for confirming that the sample is properly developed in the porous carrier. ,
When the control means detects that the color reaction is completed in the confirmation reagent fixing part before the development duration time shorter than the reaction completion time has elapsed since the test piece was loaded, An immunochromatography apparatus characterized in that the inspection of a test piece is stopped.   The control means determines whether or not the color reaction in the confirmation reagent fixing section is completed by using the result of the reading of the confirmation reagent fixing section for the first time by the reading means after the test piece is loaded. The immunochromatography device according to claim 1 which judges.   The immunochromatography apparatus according to claim 1 or 2, wherein the test item information recorded on the test piece is read, and the reaction completion time is set based on the test item information.   The immunochromatography apparatus according to any one of claims 1 to 3, further comprising a sensor that detects that the test piece is loaded.   The immunochromatography apparatus according to any one of claims 1 to 4, wherein a plurality of the test pieces can be loaded. The plurality of test pieces can be loaded in a state aligned in one direction,
The immunochromatography apparatus according to claim 5, wherein the reading unit scans the plurality of test pieces in the arrangement direction.   The immunochromatography apparatus according to claim 6, wherein the reading means performs scanning before the completion of the reaction after the test piece is loaded.

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