A device for identifying test strip insertion, a device for judging test strip sample suction and a method thereof

Abstract

This application discloses a device for identifying test strip insertion, a device for determining test strip sample absorption, and a method thereof. The device identifies the test strip insertion and determines sample fill by measuring the interface voltage value of the test strip interface. This eliminates the need for additional test strip electrodes and avoids the need for separate processing resources for sample fill determination, thus saving on electrode material and processing resource costs. The device includes: a test strip interface, a voltage acquisition module, and a processing module; the test strip interface is used to insert the test strip; the voltage acquisition module is used to acquire the interface voltage value of the test strip interface; and the processing module is used to determine whether the test strip is inserted based on the interface voltage value.

Description

Technical Field

[0001] The invention relates to the field of medical in vitro diagnosis (IVD), and in particular to a test strip insertion identification device, a test strip sample aspiration judgment device and a method thereof. Background Art

[0002] With the development and progress of technology, when inserting and aspirating test strips, in order to improve the accuracy and precision of measurement, it is necessary to first confirm the insertion of the test strip and then aspirate the sample. Therefore, relevant research and development institutions and companies gradually add more electrodes to the blood glucose test strips to reduce the interference of other substances in the blood on the blood glucose test results, thereby achieving higher accuracy. Among them, accurate insertion of the test strip is a prerequisite for testing, and incomplete aspiration of the test strip is one of the important reasons affecting the test results.

[0003] Most of the existing carbon test strips realize the judgment of sample filling by adding carbon electrodes, and the test strip insertion can only be implemented based on the operating experience of the staff.

[0004] However, after adding the test electrodes, the cost of the test strip process will increase, and additional processor resources will be required to process the sample fullness judgment corresponding to the test electrodes, and after the test strips are manually inserted, the test strips cannot be identified. Summary of the invention

[0005] The purpose of the present invention is to provide a device for test strip insertion identification, a device for test strip sample aspiration judgment and a method thereof, which realizes test strip insertion identification and sample aspiration full judgment through the interface voltage value of the test strip interface, does not require additional test strip electrodes, and does not require additional processing resources to perform sample aspiration full judgment separately, saving the cost of electrode materials and processing resources.

[0006] A first aspect of the present invention provides a test strip insert identification device, comprising:

[0007] Test strip interface, pressure application module, voltage acquisition module and processing module;

[0008] The pressure applying module includes a voltage dividing resistor connected in series with the test strip interface and a power supply connected to the voltage dividing resistor;

[0009] The voltage acquisition module is connected to the test strip interface, and the processing module is connected to the voltage acquisition module;

[0010] A test strip interface, used for inserting a test strip;

[0011] A voltage acquisition module is used to obtain the interface voltage value of the test strip interface;

[0012] The processing module is used to determine whether the test strip is inserted according to the interface voltage value.

[0013] Furthermore, the test strip includes a power-on electrode and a ground electrode.

[0014] The test strip interface includes:

[0015] A test strip power-on electrode interface and a test strip ground electrode interface. When the test strip is not inserted, the test strip power-on electrode interface and the test strip ground electrode interface are in an open circuit state;

[0016] A test strip power-on electrode interface, used to connect to the power-on electrode of the test strip;

[0017] The test strip ground electrode interface is used to connect to the ground electrode of the test strip.

[0018] Furthermore,

[0019] The power supply is connected to the test strip power-on electrode interface through a voltage-dividing resistor, and the voltage acquisition module is connected to the test strip power-on electrode interface;

[0020] The voltage acquisition module is used to obtain the interface voltage value of the test strip power-on electrode interface.

[0021] Furthermore, the processing module includes:

[0022] The insertion strip identification unit is used to determine whether the interface voltage value changes compared with the power supply voltage value. If so, it is determined that the test strip is inserted; if not, it is determined that the test strip is not inserted.

[0023] The second aspect of the present invention provides a device for sample aspiration and determination of a test strip, comprising:

[0024] The test strip insert identification device and the test strip in the first aspect above;

[0025] The test strip also includes a reference electrode and a sample suction area, the reference electrode has an extension electrode, and one end of the extension electrode close to the sample suction area is flush with the ground electrode;

[0026] A voltage acquisition module is used to obtain the initial voltage value of the test strip interface when the test strip is inserted;

[0027] The voltage acquisition module is also used to detect the real-time voltage value of the test strip interface in real time when the test strip is sucking samples;

[0028] The processing module is used to determine whether the test strip is full of samples according to the initial voltage value and the real-time voltage value.

[0029] Furthermore, the processing module includes:

[0030] The sample suction judgment unit is used to judge whether the real-time voltage value changes compared with the initial voltage value. If so, it is determined that the test strip is full of sample suction; if not, it is determined that the test strip is not full of sample suction.

[0031] A third aspect of the present invention provides a method for identifying a test strip insert, which is applied to the device for identifying a test strip insert of the first aspect above, and the method comprises:

[0032] The voltage acquisition module acquires the interface voltage value of the test strip interface;

[0033] The processing module determines whether the test strip is inserted according to the interface voltage value.

[0034] Furthermore, the processing module determines whether the test strip is inserted according to the interface voltage value, including:

[0035] The processing module receives the interface voltage value sent by the voltage acquisition module;

[0036] The processing module determines whether the interface voltage value has changed compared with the power supply voltage value;

[0037] If yes, the test strip insertion is confirmed;

[0038] If not, it is determined that the test strip is not inserted.

[0039] A fourth aspect of the present invention provides a method for determining a sample by aspirating a test strip, which is applied to the device for determining a sample by aspirating a test strip according to the second aspect above, and the method comprises:

[0040] When the test strip is inserted, the voltage acquisition module acquires the initial voltage value of the test strip interface;

[0041] When the test strip is sucking samples, the voltage acquisition module detects the real-time voltage value of the test strip interface in real time;

[0042] The processing module determines whether the test strip is full of samples according to the initial voltage value and the real-time voltage value.

[0043] Furthermore, the processing module determines whether the test strip is full of samples according to the initial voltage value and the real-time voltage value, including:

[0044] The processing module determines whether the real-time voltage value has changed compared with the initial voltage value;

[0045] If so, it is determined that the test strip is full;

[0046] If not, determine that the test strip is not full.

[0047] It can be seen that the device for identifying the insertion of a test strip provided by the present invention includes a test strip interface, a pressure module, a voltage acquisition module and a processing module. The pressure module includes a voltage-dividing resistor connected in series with the test strip interface and a power supply connected to the voltage-dividing resistor. The voltage acquisition module is connected to the test strip interface. The processing module is connected to the voltage acquisition module. The test strip interface is used to insert a test strip. The voltage acquisition module acquires the interface voltage value of the test strip interface. The processing module determines whether the test strip is inserted according to the interface voltage value. The device for judging the sample suction of a test strip includes a device for identifying the insertion of a test strip and a test strip. The test strip also includes a reference electrode and a sample suction area. The reference electrode has an extension electrode. One end of the extension electrode close to the sample suction area is flush with the ground electrode. When the test strip is inserted, the voltage acquisition module acquires the initial voltage value of the test strip interface. When the test strip is sucking a sample, the real-time voltage value of the test strip interface is detected in real time. The processing module determines whether the test strip is full of samples according to the initial voltage value and the real-time voltage value. Compared with the existing method of adding test strip electrodes to realize the judgment of sample fullness, the present invention realizes test strip insertion identification and sample fullness judgment by increasing the interface voltage value of the test strip interface module. There is no need to add additional test strip electrodes, nor is there any need to occupy additional processing resources to perform sample fullness judgment separately. Therefore, the cost of electrode materials and processing resources is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0049] Figure 1 A schematic structural diagram of an embodiment of a test strip insert identification device provided by the present invention;

[0050] Figure 2 A schematic structural diagram of an embodiment of a test strip provided by the present invention;

[0051] Figure 3 A schematic diagram of the equivalent resistance of the test strip provided by the present invention when it is not fully absorbed;

[0052] Figure 4 An equivalent circuit diagram of the test strip provided by the present invention when it is not fully absorbed;

[0053] Figure 5 A schematic diagram of the equivalent resistance of the test strip provided by the present invention when it is fully absorbed;

[0054] Figure 6 An equivalent circuit diagram of the test strip provided by the present invention when it is full;

[0055] Figure 7A schematic structural diagram of another embodiment of the test strip insert identification device provided by the present invention;

[0056] Figure 8 A circuit connection structure diagram of a test strip insertion identification device and a test strip provided by the present invention;

[0057] Fig. 9 Another circuit connection structure diagram of the test strip insertion identification device provided by the present invention and the test strip;

[0058] Fig.10 A circuit connection structure diagram of the test strip sample aspiration judgment device and the test strip provided by the present invention;

[0059] Fig.11 Another circuit connection structure diagram of the test strip sample aspiration judgment device and the test strip provided by the present invention;

[0060] Fig.12 A schematic flow chart of an embodiment of a method for identifying a test strip insert provided by the present invention;

[0061] Fig.13 A schematic flow chart of an embodiment of the method for determining a sample by aspirating a test strip provided by the present invention. DETAILED DESCRIPTION

[0062] The core of the present invention is to provide a device for test strip insertion identification, a device for test strip sample aspiration judgment and a method thereof, which realizes test strip insertion identification and sample aspiration full judgment through the interface voltage value of the test strip interface, without the need to add additional test strip electrodes or occupy additional processing resources to perform sample aspiration full judgment separately, thus saving the cost of electrode materials and processing resources.

[0063] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] See also Figure 1 The embodiment of the present invention provides a device for identifying a test strip insert, comprising:

[0065] Test strip interface 101, pressure applying module 102, voltage acquisition module 103 and processing module 104;

[0066] The pressure applying module 102 includes a voltage dividing resistor 1021 connected in series with the test strip interface 101 and a power source 1022 connected to the voltage dividing resistor 1021;

[0067] The voltage acquisition module 103 is connected to the test strip interface 101, and the processing module 104 is connected to the voltage acquisition module 103;

[0068] Test strip interface 101, used for inserting a test strip;

[0069] The voltage acquisition module 103 is used to acquire the interface voltage value of the test strip interface 101;

[0070] The processing module 104 is used to determine whether the test strip is inserted according to the interface voltage value.

[0071] In the embodiment of the present invention, the pressure module 102 includes a voltage-dividing resistor 1021 connected in series with the test strip interface 101 and a power supply 1022 connected to the voltage-dividing resistor 1021, the voltage acquisition module 103 is connected to the test strip interface 101, and the processing module 104 is connected to the voltage acquisition module 103. The test strip interface 101 is used to insert the test strip. After the test strip is inserted, due to the existence of the voltage-dividing resistor 1021, the interface voltage value of the test strip interface 101 acquired by the voltage acquisition module 103 will change. Therefore, the processing module 104 can determine whether the test strip is inserted according to the interface voltage value. The insertion identification of the test strip is realized by the interface voltage value of the test strip interface, and there is no need to add additional test strip electrodes, which saves the cost of electrode materials and processing resources.

[0072] See also Figure 2 , an embodiment of the present invention provides a test strip, comprising:

[0073] A power-on electrode 201, a ground electrode 202, a reference electrode 203 and a sample suction area 204;

[0074] The reference electrode 203 has an extended electrode, and one end of the extended electrode close to the sample suction area 204 is flush with the ground electrode 202 .

[0075] In the embodiment of the present invention, the structure of the test strip is as follows Figure 2 As shown, there are a start-up electrode 201, a ground electrode 202, a reference electrode 203 and a sample suction area 204, wherein the reference electrode 203 has an extension electrode, and one end of the extension electrode close to the sample suction area 204 is flush with the ground electrode 202. If there is no sample suction in the sample suction area 204, the electrodes cannot be connected, and if the sample suction is not full, the connection between the start-up electrode 201 and the ground electrode 202 cannot be achieved. Only when the sample suction is full, the entire sample suction area 204 becomes conductive, so that the tail end of the start-up electrode 201 is connected to the tail end of the ground electrode 202 through the sample suction area 204. Therefore, the start-up electrode 201 can realize the identification of the test strip and the judgment of whether the sample suction is full.

[0076] Since the electrodes are made of conductive materials such as carbon, silver, and gold through screen printing (electroplating and then lasering), there is resistance on the electrodes. Due to the different materials, lengths, and widths of the electrodes, the electrical characteristics of each electrode have different equivalent resistances. Therefore, Figure 2 The electrodes and structures in the test strip shown form an equivalent circuit diagram. Figure 3-Figure 6 To explain:

[0077] The equivalent resistance of the power-on electrode 201 is the first resistance R1, the equivalent resistance of the ground electrode 202 is the second resistance R2, and the equivalent resistance of the bridge portion of the H-type structure is the third resistance R3;

[0078] When the sample suction area 204 is full, the equivalent resistance of the tail end of the power-on electrode 201, the tail end of the ground electrode 202 and the sample suction area 204 is the fourth resistor R4. Generally, the conductive material of the power-on electrode 201 has a large impedance, and the specific conductive material is not limited. Figure 3 As shown, it is marked that the equivalent resistance of the power-on electrode 201 is the first resistance R1, the equivalent resistance of the ground electrode 202 is the second resistance R2, and the equivalent resistance of the bridge portion of the H-type structure is the third resistance R3. At this time, the sample suction area 204 is not full of samples, and the equivalent circuit structure is as follows Figure 4 As shown, at this time, the equivalent internal resistance of the test strip R (not fully absorbed) = R1 + R2 + R3. Figure 5 As shown, when the sample suction area 204 is full of samples, the equivalent resistance of the tail end of the power-on electrode 201, the tail end of the ground electrode 202 and the sample suction area 204 is the fourth resistor R4. The equivalent circuit structure at this time is as follows: Figure 6 As shown, when the sample aspirating area 204 is full of samples, the third resistor R3 and the fourth resistor R4 are connected in parallel.

[0079] Test strip equivalent internal resistance

[0080] Combined with the above Figure 2-Figure 6 With regard to the description of the test strip and the equivalent circuit structure, the following describes the device for test strip insertion identification through an embodiment, specifically how to obtain the interface voltage value and use the interface voltage value to perform insertion identification.

[0081] Optional, combined Figure 1 The embodiment shown, as Figure 7 As shown, in some embodiments of the present invention, the test strip interface 101 includes:

[0082] The test strip power-on electrode interface 701 and the test strip ground electrode interface 702 are in an open circuit state when the test strip is not inserted;

[0083] The test strip power-on electrode interface 701 is used to connect with the power-on electrode of the test strip;

[0084] The test strip ground electrode interface 702 is used to connect to the ground electrode of the test strip.

[0085] Optional, continue to refer to Figure 7 , in some embodiments of the present invention,

[0086] The power supply 1022 is connected to the test strip power-on electrode interface 701 through the voltage-dividing resistor 1021, and the voltage acquisition module 103 is connected to the test strip power-on electrode interface 701;

[0087] The voltage acquisition module 103 is used to acquire the interface voltage value of the test strip power-on electrode interface 701 .

[0088] exist Figure 7 In the embodiment shown, the test strip power-on electrode interface 701 and the test strip ground electrode interface 702 of the test strip interface 101 are respectively used to connect to the power-on electrode and the ground electrode of the test strip, the power supply 1022 is connected to the test strip power-on electrode interface 701 through the voltage-dividing resistor 1021, and the voltage acquisition module 103 is connected to the test strip power-on electrode interface 701. The voltage acquisition module 103 can obtain the interface voltage value from the test strip power-on electrode interface 701. The circuit structure diagram after the test strip is inserted is shown in FIG. Figure 8 As shown, the test strip ground electrode interface is connected to the test strip ground electrode 202, the test strip ground electrode interface is grounded (GND), the power supply (VCC) is connected to the test strip power-on electrode interface through a voltage-dividing resistor (RL), and the test strip power-on electrode interface is connected to the test strip power-on electrode 201. Since the test strip power-on electrode interface and the test strip ground electrode interface are in an open circuit state when the test strip is not inserted, the interface voltage value detected by the voltage acquisition module 103 is VCC at this time, and when the test strip is inserted, the test strip power-on electrode interface and the test strip ground electrode interface are connected through the test strip.

[0089] In combination with the above Figure 8 In the description, only the acquisition of the interface voltage value is introduced, and how to identify the plug-in according to the interface voltage value is not described in detail. The following is a detailed description through an embodiment.

[0090] Optionally, combine Figure 8 The embodiment shown, as Fig. 9 As shown, in some embodiments of the present invention, the processing module 104 includes:

[0091] Insert identification unit 901;

[0092] The insertion strip identification unit 901 is used to determine whether the interface voltage value has changed compared with the power supply voltage value. If so, it is determined that the test strip is inserted; if not, it is determined that the test strip is not inserted.

[0093] Since the test strip has not been fully sampled after insertion, the equivalent internal resistance of the test strip R (not fully sampled) = R1 + R2 + R3, and the interface voltage value detected by the voltage acquisition module 103 is That is, the insertion strip identification unit 901 only needs to judge whether the interface voltage value changes compared with VCC to determine whether the test strip is inserted.

[0094] Combined with the above Figure 8 The embodiment shown, as Fig.10 As shown, an embodiment of the present invention provides a device for determining a test strip sample by aspiration, comprising:

[0095] The above test strip insert identification device and test strip;

[0096] The test strip further includes a reference electrode 203 and a sample suction area 204. The reference electrode 203 has an extension electrode, and one end of the extension electrode close to the sample suction area 204 is flush with the ground electrode 202.

[0097] The voltage acquisition module 103 is used to obtain the initial voltage value of the test strip interface when the test strip is inserted;

[0098] The voltage acquisition module 103 is also used to detect the real-time voltage value of the test strip interface in real time when the test strip is sucking samples;

[0099] The processing module 104 is used to determine whether the test strip is full of samples according to the initial voltage value and the real-time voltage value.

[0100] Optional, such as Fig.11 As shown, in some embodiments of the present invention, the processing module 104 includes:

[0101] The sample aspiration determination unit 1101 determines whether the real-time voltage value has changed compared with the initial voltage value. If so, it is determined that the test strip is full of sample aspiration; if not, it is determined that the test strip is not full of sample aspiration.

[0102] In the embodiment of the present invention, when the test strip is inserted, the test strip power-on electrode interface and the test strip ground electrode interface are connected through the test strip. After the test strip is inserted, when the sample is not fully absorbed, the equivalent internal resistance value of the test strip R (not fully absorbed) = R1 + R2 + R3, and the equivalent internal resistance is different; when the sample is fully absorbed, the equivalent internal resistance value of the test strip is

[0103] The equivalent internal resistance value of the test strip that is not fully charged R(not fully charged) = R1+R2+R3, the voltage value of the power supply VCC and the resistance value of the voltage divider resistor RL are obtained in advance, and the initial voltage value after the test strip is inserted is calculated

[0104] The insertion strip identification unit 901 determines whether the interface voltage value changes from the power supply voltage value VCC to the test strip insertion voltage value V1. If so, it is determined that the test strip is inserted; if not, it is determined that the test strip is not inserted;

[0105] Get the equivalent internal resistance value of the test strip in advance The full absorption voltage value of the test strip is calculated based on the full absorption equivalent internal resistance value R (full absorption), the power supply voltage value VCC and the resistance value RL of the voltage divider resistor.

[0106] When the insertion strip recognition unit 901 determines that the test strip is inserted, the sample aspiration judgment unit 1101 determines whether the real-time voltage value changes from the initial voltage value V1 to the test strip full aspiration voltage value V2. If so, it is determined that the test strip is fully aspirated; if not, it is determined that the test strip is not fully aspirated.

[0107] The above embodiments describe in detail the device for test strip insert identification and the device for test strip sample aspiration judgment. The following embodiments describe in detail the method for test strip insert identification and sample aspiration judgment applied to the device.

[0108] See also Fig.12 The embodiment of the present invention provides a method for identifying a test strip insert, comprising:

[0109] 1201. A voltage acquisition module acquires an interface voltage value of a test strip interface;

[0110] In this embodiment, combined with Figure 1-Figure 9 In the description of the test strip insertion device and the test strip, the voltage acquisition module acquires the interface voltage value of the test strip interface.

[0111] 1202. The processing module determines whether the test strip is inserted according to the interface voltage value.

[0112] In this embodiment, the specific process is:

[0113] The processing module receives the interface voltage value sent by the voltage acquisition module;

[0114] The processing module determines whether the interface voltage value has changed compared with the power supply voltage value;

[0115] If yes, the test strip insertion is confirmed;

[0116] If not, it is determined that the test strip is not inserted.

[0117] exist Figure 7 In the embodiment shown, the test strip power-on electrode interface 701 and the test strip ground electrode interface 702 of the test strip interface 101 are respectively used to connect to the power-on electrode and the ground electrode of the test strip, the power supply 1022 is connected to the test strip power-on electrode interface 701 through the voltage-dividing resistor 1021, and the voltage acquisition module 103 is connected to the test strip power-on electrode interface 701. The voltage acquisition module 103 can obtain the interface voltage value from the test strip power-on electrode interface 701. The circuit structure diagram after the test strip is inserted is shown in FIG. Figure 8As shown, the test strip ground electrode interface is connected to the test strip ground electrode 202, the test strip ground electrode interface is grounded (GND), the power supply (VCC) is connected to the test strip power-on electrode interface through a voltage-dividing resistor (RL), and the test strip power-on electrode interface is connected to the test strip power-on electrode 201. Since the test strip power-on electrode interface and the test strip ground electrode interface are in an open circuit state when the test strip is not inserted, the interface voltage value detected by the voltage acquisition module 103 is VCC at this time, and when the test strip is inserted, the test strip power-on electrode interface and the test strip ground electrode interface are connected through the test strip. Since the test strip has not been sampled after insertion, the equivalent internal resistance value of the test strip R (not fully absorbed) = R1+R2+R3, and the interface voltage value detected by the voltage acquisition module 103 is:

[0118] That is, the insertion strip identification unit 901 only needs to judge whether the interface voltage value changes compared with VCC to determine whether the test strip is inserted.

[0119] See also Fig.13 The embodiment of the present invention provides a method for determining a test strip sample by suction, comprising:

[0120] 1301. When the test strip is inserted, the voltage acquisition module acquires an initial voltage value of the test strip interface;

[0121] In this embodiment, combined with Figure 1-Figure 11 In the description of the device and the test strip for the test strip sample aspiration judgment, when the test strip is inserted, the voltage acquisition module acquires the initial voltage value of the test strip interface

[0122] 1302. When the test strip absorbs the sample, the voltage acquisition module detects the real-time voltage value of the test strip interface in real time;

[0123] In this embodiment, when the test strip is sucking the sample, the voltage acquisition module detects the real-time voltage value of the test strip interface in real time. When the test strip is fully sucked, the equivalent internal resistance value is Then the test strip absorbs the full voltage value

[0124] 1303. The processing module determines whether the test strip is full of samples according to the initial voltage value and the real-time voltage value.

[0125] In this embodiment, specifically:

[0126] The processing module determines whether the real-time voltage value has changed compared with the initial voltage value;

[0127] If so, it is determined that the test strip is full;

[0128] If not, determine that the test strip is not full.

[0129] If the interface voltage value changes from V1 to V2, it is determined that the test strip is full of samples. At this time, a full prompt message can also be issued to prompt personnel to stop dripping samples;

[0130] If the interface voltage value does not change from the test strip insertion voltage value V1 to the test strip full voltage value V2, it is determined that the test strip is not full. At this time, an incomplete prompt message can also be issued to prompt the personnel to continue dripping the sample until the test strip is full.

[0131] In the apparatus for identifying the test strip insertion, the apparatus for judging the test strip sample suction and the method thereof in all the above embodiments, the present invention explains in detail that the identification of the insertion strip utilizes the interface voltage value when the test strip is not inserted, which is the power supply voltage value VCC. When the test strip is inserted, the equivalent internal resistance of the test strip causes the interface voltage value to drop, so that it is possible to determine whether the test strip is inserted according to the change in the interface voltage value. The judgment of the sample suction utilizes the fact that the equivalent internal resistance value of the test strip is greater when the sample suction is not full than when the sample suction is full, thereby causing the interface voltage value when the sample suction is not full to be greater than the interface voltage value when the sample suction is full, and whether the sample suction is full is determined by judging the change in the interface voltage value. Therefore, the identification of the insertion strip and the judgment of the sample suction can be realized by the interface voltage value.

[0132] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0133] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0134] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for determining a test strip sample, characterized in that: include: A device for identifying a test strip insert and a test strip; The test strip insert identification device comprises: Test strip interface, pressure application module, voltage acquisition module and processing module; The pressure applying module includes a voltage dividing resistor connected in series with the test strip interface and a power supply connected to the voltage dividing resistor; The voltage acquisition module is connected to the test strip interface, and the processing module is connected to the voltage acquisition module; The test strip interface is used to insert the test strip; The voltage acquisition module is used to obtain the interface voltage value of the test strip interface; The processing module is used to determine whether the test strip is inserted according to the interface voltage value; The processing module comprises: an insertion strip identification unit, used to determine whether the interface voltage value has changed compared with the voltage value of the power supply, and if so, determine that the test strip is inserted; if not, determine that the test strip is not inserted; The test strip comprises a start electrode and a ground electrode, The test strip interface comprises: A test strip power-on electrode interface and a test strip ground electrode interface, wherein when the test strip is not inserted, the test strip power-on electrode interface and the test strip ground electrode interface are in an open circuit state; The test strip power-on electrode interface is used to connect to the power-on electrode of the test strip; The test strip ground electrode interface is used to connect to the ground electrode of the test strip; The power supply is connected to the test strip power-on electrode interface through the voltage-dividing resistor, and the voltage acquisition module is connected to the test strip power-on electrode interface; The voltage acquisition module is used to obtain the interface voltage value of the power-on electrode interface of the test strip; The test strip further comprises a reference electrode and a sample suction area, wherein the reference electrode comprises an extension electrode, and one end of the extension electrode close to the sample suction area is flush with the ground electrode; The voltage acquisition module is used to obtain the initial voltage value of the test strip interface when the test strip is inserted; The voltage acquisition module is also used to detect the real-time voltage value of the test strip interface in real time when the test strip is sucking samples; The processing module is used to determine whether the test strip is full of samples according to the initial voltage value and the real-time voltage value.

2. The device according to claim 1, characterized in that The processing module comprises: The sample aspiration judgment unit is used to judge whether the real-time voltage value has changed compared with the initial voltage value. If so, it is determined that the test strip is full of sample aspiration; if not, it is determined that the test strip is not full of sample aspiration.

3. A method for determining a sample by aspirating a test strip, characterized in that: The device for determining the sample by aspirating a test strip according to claim 1 or 2, wherein the method comprises: When the test strip is inserted, the voltage acquisition module acquires the initial voltage value of the test strip interface; When the test strip is sucking a sample, the voltage acquisition module detects the real-time voltage value of the test strip interface in real time; The processing module determines whether the test strip is full of samples according to the initial voltage value and the real-time voltage value.

4. The method according to claim 3, characterized in that The processing module determines whether the test strip is full of samples according to the initial voltage value and the real-time voltage value, including: The processing module determines whether the real-time voltage value changes compared to the initial voltage value; If yes, it is determined that the test strip is full of sample; If not, it is determined that the test strip is not full.

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