Specific protein measuring device

Abstract

The utility model provides a specific protein measuring device which comprises a metering pump connected with a reaction detection assembly and a reaction reagent barrel through a sample adding pipeline; the negative pressure gas storage pool is connected with the constant delivery pump and is used for providing pressure to drive the constant delivery pump to extract the reaction reagent in the reaction reagent barrel when being communicated with the constant delivery pump; the first positive pressure gas storage pool is connected with the constant delivery pump and is used for providing pressure when being communicated with the constant delivery pump so as to drive the constant delivery pump to add the extracted reaction reagent into the reaction detection assembly; and the reaction detection assembly is used for reacting according to the received sample and reaction reagent and detecting to obtain specific protein parameters. According to the utility model, the reaction reagent is directly extracted from the reagent barrel through the constant delivery pump, and the extracted reaction reagent is directly injected into the reaction detection assembly, so that the adverse effect on the subsequent detection result caused by carrying pollution due to the fact that the reagent is sucked by a sample needle can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of in vitro diagnosis, in particular to a specific protein measuring device. Background Art

[0002] At present, a fully automatic specific protein analyzer usually sucks a sample and a reaction reagent through a sample needle, and sends the sample and the reaction reagent sucked by the sample needle to a reaction pool for reaction respectively to obtain a test result. The reagent needle needs to transfer and clean the sample and the reaction reagent, which is easy to cause carry-over contamination. Summary of the Utility Model

[0003] In view of this, an object of the utility model is to provide a specific protein measuring device for solving the technical problem that carry-over contamination is easily caused by operations such as transfer and cleaning after a reaction reagent is sucked by a reagent needle.

[0004] An aspect of an embodiment of the utility model provides a specific protein measuring device, including:

[0005] A metering pump, which is respectively connected to a reaction detection component and a reaction reagent barrel through a sampling pipeline. The metering pump is used to extract the reaction reagent in the reaction reagent barrel through the sampling pipeline, and the metering pump is also used to add the extracted reaction reagent into the reaction detection component through the sampling pipeline;

[0006] A negative pressure gas storage tank, connected to the metering pump. The negative pressure gas storage tank is used for: providing pressure to drive the metering pump to extract the reaction reagent in the reaction reagent barrel when being connected to the metering pump;

[0007] A first positive pressure gas storage tank, connected to the metering pump. The first positive pressure gas storage tank is used for: providing pressure to drive the metering pump to add the extracted reaction reagent into the reaction detection component when being connected to the metering pump; and

[0008] The reaction detection component is used for reacting according to the received sample and the reaction reagent and detecting to obtain specific protein parameters.

[0009] Optionally, the specific protein measuring device further includes a first liquid valve, and the first liquid valve is respectively connected to the reaction detection component, the reaction reagent barrel and the metering pump through the sampling pipeline.

[0010] Optionally, the specific protein measuring device further includes a first gas valve, and the first gas valve is respectively connected to the negative pressure gas storage tank, the first positive pressure gas storage tank and the metering pump through a conveying pipeline.

[0011] Optionally, the specific protein measurement device further includes a cleaning valve, a liquid storage tank, and a waste liquid assembly. The cleaning valve is connected to the liquid storage tank and the reaction detection assembly, and the waste liquid assembly is connected to the reaction detection assembly. The waste liquid assembly is used to discharge the waste liquid generated by the reaction detection assembly.

[0012] Optionally, the specific protein measurement device further includes a cleaning reagent barrel and a liquid filling valve. The liquid filling valve is connected to the cleaning reagent barrel and the liquid storage tank.

[0013] Optionally, the specific protein measurement device further includes a second air valve and a second positive pressure gas storage tank. The second air valve is connected to the liquid storage tank, the negative pressure gas storage tank, and the second positive pressure gas storage tank.

[0014] Optionally, the specific protein measurement device further includes a gas source and a first sensor. The gas source is connected to the negative pressure gas storage tank, and the first sensor is connected to the negative pressure gas storage tank. When the first sensor detects that the negative pressure of the negative pressure gas storage tank is lower than the negative pressure threshold, the gas source and the negative pressure gas storage tank are conducted to build pressure.

[0015] Optionally, the specific protein measurement device further includes a second sensor. The gas source is connected to the second positive pressure gas storage tank, and the second sensor is connected to the second positive pressure gas storage tank. When the second sensor detects that the positive pressure of the second positive pressure gas storage tank is lower than the positive pressure threshold, the gas source and the second positive pressure gas storage tank are conducted to build pressure.

[0016] Optionally, the first positive pressure gas storage tank and the second positive pressure gas storage tank are connected through a one-way valve. When the one-way valve is opened, the pressure of the second positive pressure gas storage tank is delivered to the first positive pressure gas storage tank.

[0017] Optionally, the positive pressure of the second positive pressure gas storage tank is less than or equal to the positive pressure of the first positive pressure gas storage tank.

[0018] A specific protein measurement device provided by an embodiment of the present utility model includes: a metering pump, which is respectively connected to a reaction detection component and a reaction reagent barrel through a sample addition pipeline. The metering pump is used to extract the reaction reagent from the reaction reagent barrel through the sample addition pipeline, and the metering pump is also used to add the extracted reaction reagent into the reaction detection component through the sample addition pipeline; a negative pressure gas storage tank, which is connected to the metering pump, and the negative pressure gas storage tank is used for: providing pressure to drive the metering pump to extract the reaction reagent from the reaction reagent barrel when connected to the metering pump; a first positive pressure gas storage tank, which is connected to the metering pump, and the first positive pressure gas storage tank is used for: providing pressure to drive the metering pump to add the extracted reaction reagent into the reaction detection component when connected to the metering pump; and a reaction detection component, which is used to react according to the received sample and reaction reagent and detect specific protein parameters. The present utility model directly extracts the reaction reagent from the reagent barrel through the metering pump and directly injects the extracted reaction reagent into the reaction detection component through the metering pump, which can avoid the adverse effects on subsequent detection results caused by carry-over contamination due to the sample needle sucking the reagent.

[0019] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments, but it is not limited to the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematically shows the structural diagram of the sample addition component in the specific protein measurement device in the prior art;

[0021] Figure 2 Schematically shows the overall structural diagram of the specific protein measurement device of the present utility model.

[0022] Reference numerals: 11, sample needle; 12, reaction cup; 13, reagent bottle; 101, second positive pressure gas storage tank; 102, first positive pressure gas storage tank; 103, one-way valve; 104, negative pressure gas storage tank; 105, second gas valve; 106, liquid storage tank; 107, cleaning valve; 108, metering pump; 109, first gas valve; 110, first liquid valve; 111, negative pressure pressure building control valve; 112, gas source; 113, positive pressure pressure building control valve; 114, first sensor; 115, second sensor; 116, waste liquid component; 117, cleaning reagent barrel; 118, reaction reagent barrel; 119, filling valve; 120, reaction detection component; 121, first sample addition pipeline; 122, second sample addition pipeline; 123, third sample addition pipeline; 124, first conveying pipeline; 125, second conveying pipeline; 126, third conveying pipeline; 127, fourth conveying pipeline; 128, fifth conveying pipeline; 129, sixth conveying pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be specifically noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only partial embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0024] Reference to "embodiments" in this document means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0025] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "set", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0026] Currently, a fully automatic specific protein analyzer usually aspirates a sample and a reaction reagent through a sample needle, and sends the sample and the reaction reagent aspirated by the sample needle to a reaction pool for reaction respectively to obtain a test result. As Figure 1 shown, the existing specific protein analyzer includes a sample needle 11, a reagent bottle 13, and a reaction cup 12. The preparation of the sample solution for sample addition is achieved through at least the following steps: first, aspirate a sample from a sample tube through the sample needle 11 and add it to the reaction cup 12, clean the sample needle 11, then move the sample needle 11 to the reagent bottle 13, the sample needle 11 extends into the reagent bottle 13 to aspirate the reagent, the sample needle 11 moves above the reaction cup 12, and the sample needle 11 adds the aspirated reagent to the reaction cup 12, and then clean the inner and outer walls of the sample needle 11. The above steps will lead to an extended test time and are not conducive to sample turnover; and incomplete cleaning of the sample needle 11 will cause the sample needle 11 to carry the reagent when aspirating the sample again, affecting the accuracy of the subsequent test results.

[0027] To solve the above problems, as Figure 2As shown in the figure, an embodiment of the present utility model provides a specific protein measurement device, including: a metering pump 108, a negative pressure gas storage tank 104, a first positive pressure gas storage tank 102, and a reaction detection component 120; wherein, the metering pump 108 is respectively connected to the reaction detection component 120 and the reaction reagent barrel 118 through a sampling pipeline, the metering pump 108 is used to extract the reaction reagent from the reaction reagent barrel 118 through the sampling pipeline, and the metering pump 108 is also used to add the extracted reaction reagent into the reaction detection component 120 through the sampling pipeline; the negative pressure gas storage tank 104 is connected to the metering pump 108, and the negative pressure gas storage tank 104 is used for: providing pressure to drive the metering pump 108 to extract the reaction reagent from the reaction reagent barrel 118 when connected to the metering pump 108; the first positive pressure gas storage tank 102 is connected to the metering pump 108, and the first positive pressure gas storage tank 102 is used for: providing pressure to drive the metering pump 108 to add the extracted reaction reagent into the reaction detection component 120 when connected to the metering pump 108; the reaction detection component 120 is used to react according to the received sample and the reaction reagent and detect specific protein parameters. In the present utility model, the sampling of the sample can be performed by other sampling components. For example, the sample can be added to the reaction detection component 120 through a sampling needle. The metering pump 108 is used to transport the reaction reagent and does not need to be in direct contact with the sample, which can avoid the occurrence of carry-over contamination.

[0028] Compared with the prior art where sampling is achieved through operations such as the transfer and cleaning of the reagent after being aspirated by the sample needle 11, the present utility model uses the metering pump 108 to complete the addition of the reaction reagent, which can reduce the time waste caused by the sample transfer and needle cleaning after the reaction reagent is aspirated by the sample needle 11 in the prior art, improve the detection speed, and also avoid the influence on the subsequent test results caused by carry-over contamination due to incomplete cleaning after the sample needle 11 aspirates the reaction reagent.

[0029] In an exemplary embodiment, in order to simplify the structure of the specific protein measurement device, the specific protein measurement device further includes a first liquid valve 110, and the first liquid valve 110 is respectively connected to the reaction detection component 120, the reaction reagent barrel 118, and the metering pump 108 through the sampling pipeline. Specifically, the sampling pipeline includes a first sampling pipeline 121, a second sampling pipeline 122, and a third sampling pipeline 123. The first end of the first liquid valve 110 is connected to the metering pump 108 through the first sampling pipeline 121, the second end of the first liquid valve 110 is connected to the reaction detection component 120 through the second sampling pipeline 122, and the third end of the first liquid valve 110 is connected to the reaction reagent barrel 118 through the third sampling pipeline 123.

[0030] In an exemplary embodiment, in order to simplify the structure of the specific protein measuring device, the specific protein measuring device further includes a first air valve 109, and the first air valve 109 is connected to the negative pressure gas storage tank 104, the first positive pressure gas storage tank 102 and the metering pump 108 through a delivery pipeline. Specifically, the delivery pipeline includes a first delivery pipeline 124, a second delivery pipeline 125 and a third delivery pipeline 126, the first end of the first air valve 109 is connected to the metering pump 108 through the first delivery pipeline 124, the second end of the first air valve 109 is connected to the first positive pressure gas storage tank 102 through the second delivery pipeline 125, and the third end of the first air valve 109 is connected to the negative pressure gas storage tank 104 through the third delivery pipeline 126.

[0031] In an embodiment of the utility model, when the first end and the third end of the first air valve 109 are connected, and the first end and the third end of the first liquid valve 110 are connected, the negative pressure gas storage tank 104 provides negative pressure to the metering pump 108 through the third delivery pipeline 126 and the first delivery pipeline 124, and under the action of the negative pressure, the reaction reagent in the reaction reagent barrel 118 is sucked into the metering pump 108 through the third sample addition pipeline 123 and the first sample addition pipeline 121; when the first end and the second end of the first air valve 109 are connected, and the first end and the second end of the first liquid valve 110 are connected, the first positive pressure gas storage tank 102 provides positive pressure to the metering pump 108 through the second delivery pipeline 125 and the first delivery pipeline 124, and under the action of the positive pressure, the reaction reagent in the metering pump 108 is injected into the reaction detection component 120 through the first sample addition pipeline 121 and the second sample addition pipeline 122.

[0032] In an exemplary embodiment, in order to simplify the structure of the specific protein measuring device, the specific protein measuring device further includes a cleaning valve 107, a liquid reservoir 106, and a waste liquid component 116. The cleaning valve 107 is connected to the liquid reservoir 106 and the reaction detection component 120. The waste liquid component 116 is connected to the reaction detection component 120. The waste liquid component 116 is used to discharge the waste liquid generated by the reaction detection component 120. Specifically, the first end of the cleaning valve 107 is connected to the reaction detection component 120, and the second end of the cleaning valve 107 is connected to the liquid reservoir 106.

[0033] In an exemplary embodiment, in order to quickly replenish the cleaning reagent for the liquid reservoir 106, the specific protein measuring device further includes a cleaning reagent barrel 117 and a filling valve 119, and the filling valve 119 connects the cleaning reagent barrel 117 and the liquid reservoir 106. Specifically, a first end of the filling valve 119 is connected to the cleaning reagent barrel 117, and a second end of the filling valve 119 is connected to the liquid reservoir 106.

[0034] In an exemplary embodiment, in order to simplify the structure of the specific protein measuring device, the specific protein measuring device further includes a second air valve 105 and a second positive pressure gas storage tank 101, and the second air valve 105 is connected to the liquid storage tank 106, the negative pressure gas storage tank 104 and the second positive pressure gas storage tank 101. In this embodiment, the delivery pipeline also includes a fourth delivery pipeline 127, a fifth delivery pipeline 128 and a sixth delivery pipeline 129; the first end of the second air valve 105 is connected to the liquid storage tank 106 through the fourth delivery pipeline 127, the second end of the second air valve 105 is connected to the negative pressure gas storage tank 104 through the fifth delivery pipeline 128, and the third end of the second air valve 105 is connected to the second positive pressure gas storage tank 101 through the sixth delivery pipeline 129.

[0035] In the embodiment of the utility model, when the first end and the third end of the second gas valve 105 are connected, and the cleaning valve 107 is opened (that is, the first end and the second end of the cleaning valve 107 are connected), and the filling valve 119 is closed, the second positive pressure gas storage tank 101 provides positive pressure to the liquid storage tank 106 through the sixth delivery pipeline 129 and the fourth delivery pipeline 127. Under the action of the positive pressure, the cleaning reagent in the liquid storage tank 106 is injected into the reaction detection component 120 through the cleaning valve 107, and the reaction detection component 120 is cleaned; when the cleaning is completed, open The waste liquid component 116 and the waste liquid after the reaction detection component 120 are discharged outside the machine through the waste liquid component 116; when the first end and the second end of the second gas valve 105 are connected, and the filling valve 119 is opened (that is, the first end and the second end of the filling valve 119 are connected), and the cleaning valve 107 is closed, the negative pressure gas storage tank 104 provides negative pressure to the liquid storage tank 106 through the sixth delivery pipeline 129 and the fourth delivery pipeline 127. Under the action of the negative pressure, the cleaning reagent in the cleaning reagent barrel 117 is injected into the liquid storage tank 106 through the filling valve 119 for storage. Through the setting of the liquid storage tank 106, the cleaning reagent can be stored in the liquid storage tank 106 in advance. When the reaction detection component 120 needs to be cleaned, the cleaning reagent stored in the liquid storage tank 106 can quickly clean the reaction detection component 120.

[0036] In an exemplary embodiment, to simplify the structure of a specific protein measurement device, the specific protein measurement device further includes a gas source 112 and a first sensor 114. The gas source 112 is connected to the negative pressure gas storage tank 104, and the first sensor 114 is connected to the negative pressure gas storage tank 104. When the first sensor 114 detects that the negative pressure in the negative pressure gas storage tank 104 is lower than the negative pressure threshold, the gas source 112 and the negative pressure gas storage tank 104 are conducted to build pressure. In this embodiment, the specific protein measurement device further includes a negative pressure building pressure control valve 111. The first end of the negative pressure building pressure control valve 111 is connected to the negative pressure gas storage tank 104, and the second end of the negative pressure building pressure control valve 111 is connected to the gas source 112. When the first sensor 114 detects that the negative pressure in the negative pressure gas storage tank 104 is lower than the negative pressure threshold, the gas source 112 and the negative pressure building pressure control valve 111 are opened to build pressure for the negative pressure gas storage tank 104; when the first sensor 114 detects that the negative pressure in the negative pressure gas storage tank 104 reaches the upper limit, the gas source 112 and the negative pressure building pressure control valve 111 are closed. By providing the gas source 112 inside the machine, the required negative pressure can be quickly established for the negative pressure gas storage tank 104.

[0037] In an exemplary embodiment, to simplify the structure of a specific protein measurement device, the specific protein measurement device further includes a second sensor 115. The gas source 112 is connected to the second positive pressure gas storage tank 101, and the second sensor 115 is connected to the second positive pressure gas storage tank 101. When the second sensor 115 detects that the positive pressure in the second positive pressure gas storage tank 101 is lower than the positive pressure threshold, the gas source 112 and the second positive pressure gas storage tank 101 are conducted to build pressure. In this embodiment, the specific protein measurement device further includes a positive pressure building pressure control valve 113. The first end of the positive pressure building pressure control valve 113 is connected to the second positive pressure gas storage tank 101, and the second end of the positive pressure building pressure control valve 113 is connected to the gas source 112. When the second sensor 115 detects that the positive pressure in the second positive pressure gas storage tank 101 is lower than the positive pressure threshold, the gas source 112 and the positive pressure building pressure control valve 113 are opened to build pressure for the second positive pressure gas storage tank 101; when the second sensor 115 detects that the positive pressure in the second positive pressure gas storage tank 101 reaches the upper limit, the gas source 112 and the positive pressure building pressure control valve 113 are closed. By providing the gas source 112 inside the machine, the required positive pressure can be quickly established for the second positive pressure gas storage tank 101. In this embodiment, the gas source 112 is a positive and negative pressure gas source 112.

[0038] In an exemplary embodiment, to simplify the structure of a specific protein measurement device, the first positive-pressure gas storage chamber 102 and the second positive-pressure gas storage chamber 101 are connected by a one-way valve 103. When the one-way valve 103 is opened, the pressure in the second positive-pressure gas storage chamber 101 is delivered to the first positive-pressure gas storage chamber 102. In this embodiment, when the positive pressure in the first positive-pressure gas storage chamber 102 is lower than the lower limit, the one-way valve 103 is opened, and the positive pressure in the second positive-pressure gas storage chamber 101 is delivered to the first positive-pressure gas storage chamber 102 through the one-way valve 103 to build pressure in the first positive-pressure gas storage chamber 102. Through the control of the one-way valve 103, the positive pressure can move orderly, ensuring the stability of pressure building in the first positive-pressure gas storage chamber 102.

[0039] In an exemplary embodiment, the positive pressure in the second positive-pressure gas storage chamber 101 is less than or equal to the positive pressure in the first positive-pressure gas storage chamber 102. In this embodiment, the positive pressure in the first positive-pressure gas storage chamber 102 is used to inject a reaction reagent into the reaction detection assembly 120. Providing a relatively high positive pressure to the first positive-pressure gas storage chamber 102 helps to strengthen the mixing effect of the reaction reagent on the sample when injecting it into the reaction detection assembly 120.

[0040] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of the present application, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0043] The above are only the embodiments of the present application, and do not thus limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present application.

Claims

1. A specific protein measuring device, characterized in that: include: A metering pump, the metering pump is connected to the reaction detection component and the reaction reagent barrel through a sample adding pipeline, the metering pump is used to extract the reaction reagent from the reaction reagent barrel through the sample adding pipeline, and the metering pump is also used to add the extracted reaction reagent into the reaction detection component through the sample adding pipeline; A negative pressure gas storage tank connected to the metering pump, the negative pressure gas storage tank is used to: provide pressure to drive the metering pump to extract the reaction reagent from the reaction reagent barrel when connected to the metering pump; a first positive pressure gas storage tank connected to the metering pump, the first positive pressure gas storage tank being used to: provide pressure when connected to the metering pump to drive the metering pump to add the extracted reaction reagent into the reaction detection component; as well as The reaction detection component is used to react with the received sample and the reaction reagent and detect and obtain specific protein parameters.

2. The specific protein measuring device according to claim 1, characterized in that: The specific protein measuring device further comprises a first liquid valve, and the first liquid valve is connected to the reaction detection component, the reaction reagent barrel and the quantitative pump respectively through the sample adding pipeline.

3. The specific protein measuring device according to claim 2, characterized in that: The specific protein measuring device also includes a first air valve, which is connected to the negative pressure air storage tank, the first positive pressure air storage tank and the quantitative pump through a delivery pipeline.

4. The specific protein measuring device according to claim 1, characterized in that: The specific protein measuring device also includes a cleaning valve, a liquid storage tank and a waste liquid component. The cleaning valve is connected to the liquid storage tank and the reaction detection component. The waste liquid component is connected to the reaction detection component. The waste liquid component is used to discharge the waste liquid generated by the reaction detection component.

5. The specific protein measuring device according to claim 4, characterized in that: The specific protein measuring device further comprises a cleaning reagent barrel and a filling valve, wherein the filling valve connects the cleaning reagent barrel and the liquid storage tank.

6. The specific protein measuring device according to claim 5, characterized in that: The specific protein measuring device also includes a second air valve and a second positive pressure air storage tank, wherein the second air valve connects the liquid storage tank, the negative pressure air storage tank and the second positive pressure air storage tank.

7. The specific protein measuring device according to claim 6, characterized in that: The specific protein measuring device also includes a gas source and a first sensor, the gas source is connected to the negative pressure gas storage tank, and the first sensor is connected to the negative pressure gas storage tank. When the first sensor detects that the negative pressure of the negative pressure gas storage tank is lower than the negative pressure threshold, the gas source and the negative pressure gas storage tank are connected to build pressure.

8. The specific protein measuring device according to claim 7, characterized in that: The specific protein measuring device also includes a second sensor, the gas source is connected to the second positive pressure gas storage tank, and the second sensor is connected to the second positive pressure gas storage tank. When the second sensor detects that the positive pressure of the second positive pressure gas storage tank is lower than the positive pressure threshold, the gas source and the second positive pressure gas storage tank are connected to build pressure.

9. The specific protein measuring device according to claim 8, characterized in that: The first positive pressure gas storage tank and the second positive pressure gas storage tank are connected via a one-way valve. When the one-way valve is opened, the pressure of the second positive pressure gas storage tank is transmitted to the first positive pressure gas storage tank.

10. The specific protein measuring device according to claim 8, characterized in that: The positive pressure of the second positive-pressure gas storage tank is less than or equal to the positive pressure of the first positive-pressure gas storage tank.

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