Portable quantitative detection equipment and detection method for volatile substances in blood

Abstract

The invention provides portable quantitative detection equipment for volatile substances in blood and a detection method, and belongs to the technical field of detection, and the portable quantitative detection equipment comprises a shell with a detection channel; the detection tube comprises a sample adding tube and a color developing tube, and a transmission channel is arranged between the sample adding tube and the color developing tube; the image sensor is mounted in the shell; the main control board is electrically connected with the image sensor, and the pixel value is converted into a concentration value through the main control board; the display screen is mounted on the surface of the shell, and the concentration of a detection substance in the current detected blood sample can be displayed through the display screen; and the power supply is arranged in the shell, and the power supply is electrically connected with the main control board. The device is simple in structure, small in size and convenient to carry, the concentration of volatile detection substances in a to-be-detected blood sample can be accurately calculated through cooperation between the main control board and the image sensor, and data are reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection, and relates to a detection device, in particular to a portable quantitative detection device and detection method for volatile substances in blood. Background Art

[0002] When traditional detection devices perform quantitative analysis of poisons in blood, they usually require complex sample pretreatment processes and professional operators, resulting in the following technical defects in the existing quantitative analysis of poisons:

[0003] First, it relies on large-scale analytical instruments, with high equipment costs and difficulty in being portable;

[0004] Second, the detection process takes a long time and it is difficult to achieve on-site rapid detection;

[0005] Third, the user operation is complex and requires professional personnel. Summary of the Invention

[0006] The purpose of the present invention is to address the above problems in the existing technology and propose a portable quantitative detection device for volatile substances in blood that is easy to operate, fast in detection, accurate in results, and convenient to carry.

[0007] The purpose of the present invention can be achieved by the following technical solutions: A portable quantitative detection device for volatile substances in blood, comprising:

[0008] A housing, and a detection channel is provided on the housing;

[0009] A detection tube, including a sampling tube for storing substances reacting with the blood sample to be tested and a color development tube for storing a color development reagent, and a transmission channel through which volatile detection substances in the blood sample to be tested pass is provided between the sampling tube and the color development tube. Among them, the detection substances enter the color development tube through this transmission channel and undergo a chemical color development reaction with the color development reagent;

[0010] An image sensor, installed inside the housing, and the color change of the color development reagent in the color development tube and the change length are detected in real time through the image sensor;

[0011] A main control board, electrically connected to the image sensor, converts the color change detected by the image sensor into corresponding pixel values through the main control board, and converts the pixel values into corresponding concentration values through a concentration calculation module provided in the main control board;

[0012] A display screen, installed on the surface of the housing, and a human-computer interaction is formed between the display screen and the operating system in the main control board. Among them, the concentration of the detection substances in the currently measured blood sample can be displayed through the display screen;

[0013] A power supply is installed inside the housing and is electrically connected to the main control board, providing electrical energy for the entire quantitative detection device.

[0014] In the above-mentioned quantitative detection device for volatile substances in portable blood, a pneumatic control module is arranged inside the housing and is electrically connected to the main control board. One end of the pneumatic control module is connected to the color display tube, and a negative pressure environment is formed inside the color display tube through the pneumatic control module.

[0015] In the above-mentioned quantitative detection device for volatile substances in portable blood, the pneumatic control module includes an air extraction pump installed inside the housing. One end of the air extraction pump is connected to the color display tube through a trachea. When the air extraction pump is turned on, the air inside the color display tube can be evacuated through the trachea, forming a negative pressure environment inside the color display tube.

[0016] In the above-mentioned quantitative detection device for volatile substances in portable blood, the pneumatic control module further includes a micro flow meter, which is located between the color display tube and the air extraction pump and divides the trachea between the color display tube and the air extraction pump into two parts. Two ends of one section of the trachea are respectively connected to the air extraction pump and the micro flow meter, and two ends of the other section of the trachea are respectively connected to the micro flow meter and the color display tube. The micro flow meter is electrically connected to the main control board.

[0017] In the above-mentioned quantitative detection device for volatile substances in portable blood, a connector and an air extraction rubber plug are further arranged between the trachea connected to the color display tube and the color display tube. The air extraction rubber plug is connected to the housing through a fixing block. Two ends of the connector are respectively connected to the trachea and the air extraction rubber plug, and a through groove is arranged along the axial direction of the air extraction rubber plug.

[0018] In the above-mentioned quantitative detection device for volatile substances in portable blood, a detection block is arranged inside the housing, and a guiding channel is arranged on the detection block. The axis of the guiding channel coincides with the axis of the detection channel.

[0019] In the above-mentioned quantitative detection device for volatile substances in portable blood, a light-emitting module is installed on the detection block, and the light-emitting module includes a light-emitting source and a cover plate for fixing the light-emitting source on the detection block. The light-emitting source and the guiding channel are respectively located on both sides of the detection block, and the light-emitting source illuminates the space around the detection tube by means of light conduction.

[0020] In the above-mentioned quantitative detection device for volatile substances in portable blood, an RFID identification module is further arranged on the detection block, and the number of the RFID identification modules is two, which are respectively located on both sides of the guiding channel. The RFID identification module is electrically connected to the main control board.

[0021] In the above-mentioned portable quantitative detection device for volatile substances in blood, a grating is further provided on the detection block, and the grating is close to the insertion port of the detection channel. Among them, the grating is electrically connected to the main control board.

[0022] In the above-mentioned portable quantitative detection device for volatile substances in blood, a micro printer is further provided on the housing, and the micro printer is electrically connected to the main control board. Through the micro printer, the detection results can be paperized.

[0023] The present invention also provides a detection method, including the steps:

[0024] S1: Press the switch button to activate the quantitative detection device. After the device logs in to the system, it jumps to the main interface.

[0025] S2: Insert the detection tube assembled with the sample addition tube and the color development tube into the detection channel. After the grating detects the detection tube in the detection channel, the RFID identification module is started. After the RFID identification module reads the relevant information of the current detection tube through the RFID chip on the detection tube, the interface jumps to the detection interface corresponding to the type of detection tube.

[0026] S3: Add the blood sample to be detected into the sample addition tube in the detection tube.

[0027] S4: Click the corresponding button on the detection interface, and the system starts to detect. The air extraction pump and the micro flowmeter are driven by the main control board, and the detection time is dynamically adjusted according to the real-time data.

[0028] S5: Through the air extraction pump, a negative pressure environment is formed inside the color development tube in the detection tube, and the volatile detection substance in the sample addition tube is transmitted into the color development tube and undergoes a chemical color reaction with the color development reagent in the color development tube. The image sensor collects the color change in real time and judges the validity of the data.

[0029] S6: Through the concentration calculation module in the main control board, the pixel value extracted by the image sensor is converted into a concentration value in combination with the concentration conversion calibration curve in the RFID.

[0030] S7: After the detection is completed, the detection results are displayed on the interface and printed on paper through the micro printer.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] (1). The portable quantitative detection device for volatile substances in blood provided by the present invention has a simple structure, a small volume, and is easy to carry. Moreover, through the cooperation between the main control board and the image sensor, and the concentration conversion calibration curve in the RFID, the concentration of the volatile detection substance in the blood sample to be detected can be accurately calculated, and the data is reliable.

[0033] (2) By means of the pneumatic control module, a negative pressure environment is formed inside the color display tube, thereby accelerating the flow of the volatile detection substance from the sample addition tube to the color display tube, so as to improve the working efficiency of the detection.

[0034] (3) By setting a micro flowmeter, the working state of the air extraction pump can be fed back, and the effectiveness of the detection can be monitored in real time.

[0035] (4) By setting an air extraction rubber plug, and this air extraction rubber plug is fixed at the corresponding position inside the shell through a fixing block. When the detection tube is inserted from the detection channel, the insertion depth of the detection tube can be accurately controlled, and good conduction can be achieved between the air extraction rubber plug and the air pipe.

[0036] (5) By setting a detection block inside the shell, and a guiding channel is arranged on this detection block. Among them, the axis of this guiding channel coincides with the axis of the detection channel, so that the detection tube inserted into the detection channel can be reliably inserted into the air extraction rubber plug depending on the guiding channel, and a reliable connection between the detection tube and the air extraction rubber plug is completed.

[0037] (6) By setting a light-emitting light source, the brightness around the detection tube can be increased, thereby facilitating the reliability when the image sensor extracts pixel values.

[0038] (7) The light-emitting light source is installed on the detection block. At this time, the detection block can be used as a "light guide plate" to convert the point light source into a surface light source, thus avoiding the generation of "light spots" and being beneficial for the image sensor to accurately extract pixel values.

[0039] (8) The light-emitting light source is set into an annular runway structure. On the one hand, it can further avoid the generation of light spots, and on the other hand, it can expand the radiation range of the light.

[0040] (9) By setting a grating, after the user inserts the detection tube, the RFID identification module is triggered and the RFID identification module is prompted to start, thereby ensuring that the detection tube is always located inside the detection channel and not pulled out during the detection process of the detection device, and improving the reliability of the detection. Description of the Drawings

[0041] Figure 1 is a schematic structural diagram of a portable quantitative detection device for volatile substances in blood according to the present invention.

[0042] Figure 2 is Figure 1 a schematic structural diagram of the quantitative detection device from another perspective as shown.

[0043] Figure 3 is an exploded view of a portable quantitative detection device for volatile substances in blood according to the present invention.

[0044] Figure 4 This is a schematic diagram of the partial structure of a portable device for quantitatively detecting volatile substances in blood according to the present invention. Figure 1 .

[0045] Figure 5 This is a schematic diagram of the partial structure of a portable device for quantitatively detecting volatile substances in blood according to the present invention. Figure 2 .

[0046] Figure 6 It is Figure 5 A schematic diagram of the structure from another perspective.

[0047] In the figure,

[0048] 10. Housing; 11. Detection channel; 12. First notch; 13. Second notch; 14. Switch button;

[0049] 20. Detection tube; 21. Sampling tube; 22. Color-developing tube; 23. Sealing silica gel;

[0050] 30. Image sensor;

[0051] 40. Main control board; 41. USB interface; 42. Charging interface;

[0052] 50. Display screen;

[0053] 60. Power supply;

[0054] 70. Pneumatic control module; 71. Air pump; 72. Air pipe; 73. Micro flow meter; 74. Adapter; 75. Suction rubber plug; 751. Through groove; 76. Fixed block;

[0055] 80. Detection block; 81. Guide channel;

[0056] 90. Light-emitting module; 91. Light-emitting source; 92. Cover plate;

[0057] 100. RFID identification module; 110. Grating; 120. Micro printer. Specific embodiments

[0058] The following are specific embodiments of the present invention in combination with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0059] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0060] Such as Figures 1 to 6As shown in the figure, a portable quantitative detection device for volatile substances in blood provided by the present invention includes:

[0061] A housing 10, and a detection channel 11 is provided on the housing 10;

[0062] A detection tube 20, including a sampling tube 21 for storing substances reacting with the blood sample to be tested and a color development tube 22 for storing a color development reagent. A transmission channel through which volatile detection substances in the blood sample to be tested pass is provided between the sampling tube 21 and the color development tube 22. Among them, the detection substances enter the color development tube 22 through this transmission channel and undergo a chemical color development reaction with the color development reagent;

[0063] An image sensor 30, installed inside the housing 10, and the color change of the color development reagent in the color development tube 22 is detected in real time by the image sensor 30 and the change length is recorded;

[0064] A main control board 40, electrically connected to the image sensor 30. The main control board 40 converts the color change detected by the image sensor 30 into corresponding pixel values, and converts the pixel values into corresponding concentration values through a concentration calculation module set inside the main control board 40;

[0065] A display screen 50, installed on the surface of the housing 10, and a human-computer interaction is formed between the display screen 50 and the operating system inside the main control board 40. Among them, the concentration of the detection substances in the current blood sample to be tested can be displayed through the display screen 50;

[0066] A power supply 60, installed inside the housing 10, and the power supply 60 is electrically connected to the main control board 40 to provide electrical energy for the entire quantitative detection device.

[0067] It is worth mentioning that when the blood sample to be tested is injected into the sampling tube 21, the liquid in the blood (serum, blood cells, water) is absorbed by the sampling tube 21. Therefore, the liquid in the blood will not enter the color development tube 22 through the transmission channel to contaminate the color development reagent, thereby improving the reliability of the subsequent concentration detection of the detection substances.

[0068] Furthermore, it is pointed out that the sampling tube 21 and the color development tube 22 are connected by a sealing silica gel 23 and used as a gas transmission. The substances to be tested after the reaction in the sampling tube 21 are carried into the color development tube by air as a carrier for color development reaction.

[0069] The portable quantitative detection device for volatile substances in blood provided by the present invention has a simple structure, a small volume, and is easy to carry. Moreover, through the cooperation between the main control board 40 and the image sensor 30, and the concentration conversion calibration curve in the RFID, the concentration of the volatile detection substances in the blood sample to be tested can be accurately calculated, and the data is reliable.

[0070] Preferably, since the sampling tube 21 and the color development tube 22 are connected by a sealing silica gel 23, and according to the properties of the sealing silica gel 23, the speed of the volatile detection substance transmitted from the sampling tube 21 to the color development tube 22 is relatively slow, which affects the detection efficiency. Therefore, in order to improve the detection efficiency, a pneumatic control module 70 is provided in the housing 10, and the pneumatic control module 70 is electrically connected to the main control board 40. One end of the pneumatic control module 70 is connected to the color development tube 22, and a negative pressure environment is formed in the color development tube 22 through the pneumatic control module 70, so as to accelerate the flow of the volatile detection substance from the sampling tube 21 to the color development tube 22, thereby improving the working efficiency of the detection.

[0071] It is further pointed out that the pneumatic control module 70 includes an air pump 71 installed in the housing 10, and one end of the air pump 71 is connected to the color development tube 22 through a trachea 72. When the air pump 71 is turned on, the air in the color development tube 22 can be evacuated through the trachea 72, so as to form a negative pressure environment in the color development tube 22, thereby accelerating the flow of the detection substance from the sampling tube 21 to the color development tube 22.

[0072] It is further pointed out that the pneumatic control module 70 further includes a micro flowmeter 73. The micro flowmeter 73 is located between the color development tube 22 and the air pump 71, and divides the trachea 72 between the color development tube 22 and the air pump 71 into two parts. Both ends of one section of the trachea 72 are respectively connected to the air pump 71 and the micro flowmeter 73, and both ends of the other section of the trachea 72 are respectively connected to the micro flowmeter 73 and the color development tube 22. The micro flowmeter 73 is electrically connected to the main control board 40.

[0073] In this embodiment, by setting the micro flowmeter 73, the working state of the air pump 71 can be fed back, and the effectiveness of the detection can be monitored in real time.

[0074] It is further pointed out that a connector 74 and an air extraction rubber plug 75 are further provided between the trachea 72 connected to the color development tube 22 and the color development tube 22, and the air extraction rubber plug 75 is connected to the housing 10 through a fixing block 76. Both ends of the connector 74 are respectively connected to the trachea 72 and the air extraction rubber plug 75, and a through groove 751 is arranged on the air extraction rubber plug 75 along its axial direction.

[0075] It is worth mentioning that when the detection tube 20 is inserted from the detection channel 11, it is necessary to control the insertion depth. The air tube 72 is generally made of a flexible material and is not easy to fix. When the detection tube 20 is inserted from the detection channel 11, the detection tube 20 and the air tube 72 are squeezed. On the one hand, it is not easy to control the insertion depth of the detection tube 20. On the other hand, the detection tube 20 and the air tube 72 cannot be accurately connected. Therefore, in this embodiment, by setting an air extraction rubber plug 75, and the air extraction rubber plug 75 is fixed at a corresponding position in the housing 10 through a fixing block 76. When the detection tube 20 is inserted from the detection channel 11, the insertion depth of the detection tube 20 can be accurately controlled, and good conduction can be achieved between the air extraction rubber plug 75 and the air tube 72.

[0076] In addition, it is worth mentioning that since the air extraction rubber plug 75 is installed in the housing 10 through the fixing block 76, there is a certain distance between the air extraction rubber plug 75 and the upper top surface of the housing 10. The insertion port of the detection channel 11 is arranged on the upper top surface of the housing 10, resulting in a certain stroke for the detection tube 20 to be inserted from the insertion port of the detection channel 11 and move downward until it is connected to the air extraction rubber plug 75. The existence of this stroke may cause the detection tube 20 to deviate during the downward movement, ultimately resulting in the detection tube 20 being unable to accurately insert into the air extraction rubber plug 75, or it takes a certain amount of time to insert the detection tube 20 into the air extraction rubber plug 75, ultimately affecting the detection efficiency.

[0077] Therefore, in order to solve the above-mentioned problems, in this embodiment, a detection block 80 is arranged in the housing 10, and a guiding channel 81 is arranged on the detection block 80. Among them, the axis of the guiding channel 81 coincides with the axis of the detection channel 11, so that the detection tube 20 inserted into the detection channel 11 can be reliably inserted into the air extraction rubber plug 75 by relying on the guiding channel 81, and the reliable connection between the detection tube 20 and the air extraction rubber plug 75 is completed.

[0078] It is further pointed out that the detection device in this embodiment extracts the pixel values of the color change in the color display tube 22 through the image sensor 30, and the sight line inside the housing 10 is relatively dim. In addition, the detection block 80 provided to ensure that the detection tube 20 can accurately insert into the air extraction rubber plug 75 further blocks the light around the detection tube 20. Even if the detection block 80 is set as a transparent part, the dim light situation still cannot be improved. Therefore, in order to improve the accuracy of the image sensor 30 when extracting the pixel values of the color change in the color display tube 22, a light-emitting module 90 can be installed on the detection block 80, and the light-emitting module 90 includes a light-emitting source 91 and a cover plate 92 for fixing the light-emitting source 91 on the detection block 80.

[0079] In this embodiment, by providing the light-emitting light source 91, the brightness around the detection tube 20 can be increased, thus facilitating the reliability of the image sensor 30 when extracting pixel values.

[0080] It is worth mentioning that the light-emitting light source 91 and the guiding channel 81 are respectively located on both sides of the detection block 80, and the light-emitting light source 91 illuminates the space around the detection tube 20 by means of light guiding.

[0081] In this embodiment, the light-emitting light source 91 does not use the direct irradiation method to illuminate the detection tube 20 because the detection tube 20 is generally made of a transparent material such as glass. If the light-emitting light source 91 uses the direct irradiation method to irradiate the detection tube 20, a relatively bright light spot will be formed on the detection tube 20, and the glaring light spot will block a part of the color change, resulting in the image sensor 30 being unable to accurately extract the corresponding pixel values. By installing the light-emitting light source 91 on the detection block 80, the detection block 80 can be used as a "light guide plate" at this time, converting the point light source into a surface light source, thus avoiding the generation of "light spots" and facilitating the image sensor 30 to accurately extract pixel values.

[0082] It is further pointed out that the light-emitting light source 91 is set in a circular runway structure. On the one hand, it can further avoid the generation of light spots, and on the other hand, it can expand the radiation range of the light.

[0083] Preferably, an RFID identification module 100 is further provided on the detection block 80, and the number of the RFID identification modules 100 is two, which are respectively located on both sides of the guiding channel 81. Among them, the RFID identification module 100 is electrically connected to the main control board 40.

[0084] In this embodiment, an RFID chip is provided on the tube wall of the detection tube 20 to record information of the detection tube 20, such as the expiration date, batch number, detection items, whether it has been used, and the calibration parameters after production experiments, etc. When the detection tube 20 is inserted into the detection channel 11, the RFID identification module 100 can read the relevant information of the current detection tube 20 through the RFID chip and display it on the display screen 50.

[0085] It is worth mentioning that after the detection is completed, the pixel values extracted by the image sensor 30 are subjected to concentration conversion according to the function curve of Y = AX + B, where X is the pixel value extracted by the image sensor 30, Y is the final given concentration value, and A and B are the calibration parameters obtained from the experiments after the production of the detection tube 20.

[0086] Preferably, a grating 110 is further provided on the detection block 80, and the grating 110 is close to the insertion port of the detection channel 11. Among them, the grating 110 is electrically connected to the main control board 40.

[0087] In this embodiment, by setting the grating 110, when the user inserts the detection tube 20, the RFID identification module 100 is triggered and prompted to start, thereby ensuring that the detection tube 20 is always located within the detection channel 11 during the detection process and is not pulled out, improving the reliability of the detection.

[0088] Preferably, two notches are further provided on the housing 10, namely a first notch 12 and a second notch 13, and the position of the first notch 12 corresponds to the position of the USB interface 41 on the main control board 40, and the position of the second notch 13 corresponds to the position of the charging interface 42 on the main control board 40. Among them, when a device adapted to the USB interface 41 is plugged into the first notch 12, the data stored in the detection device can be exported; when a device adapted to the charging interface 42 is plugged into the second notch 13, the power supply 60 can be charged.

[0089] Preferably, a micro printer 120 is further provided on the housing 10, and the micro printer 120 is electrically connected to the main control board 40, and the detection result can be paperized through the micro printer 120.

[0090] Preferably, a switch button 14 is further provided on the housing 10, and the switch button 14 is electrically connected to the main control board 40 to turn on and off the entire detection device.

[0091] The working principle of a portable quantitative detection device for volatile substances in blood provided by the present invention includes the following steps:

[0092] S1: Press the switch button 14 to activate the quantitative detection device, and after the device logs in to the system, it jumps to the main interface;

[0093] S2: Insert the detection tube 20 after assembling the sample adding tube 21 and the color developing tube 22 into the detection channel 11. After the grating 110 detects the detection tube 20 in the detection channel 11, the RFID identification module 100 is started. After the RFID identification module 100 reads the relevant information of the current detection tube 20 through the RFID chip on the detection tube 20, the interface jumps to the detection interface corresponding to the type of detection tube 20;

[0094] S3: Add the blood sample to be detected into the sample adding tube 21 in the detection tube 20;

[0095] S4: Click the corresponding button on the detection interface, and the system starts to detect. The air pump 71 and the micro flowmeter 73 are driven by the main control board 40, and the detection time is dynamically adjusted according to the real-time data;

[0096] S5: Use the air extraction pump 71 to create a negative pressure environment inside the color display tube 22 in the detection tube 20, transfer the volatile detection substance in the sample addition tube 21 into the color display tube 22, and have a chemical color reaction with the color reagent in the color display tube 22. The image sensor 30 collects the color change in real time and determines the validity of the data;

[0097] S6: Through the concentration calculation module in the main control board 40, convert the pixel value extracted by the image sensor 30 into a concentration value in combination with the concentration conversion standard curve in the RFID;

[0098] S7: After the detection is completed, display the detection result on the interface and print it in paper form through the micro printer 120.

[0099] It should be noted that in the present invention, descriptions such as "first", "second", and "one" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. Terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0100] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0101] The specific embodiments described herein are only examples of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A portable quantitative detection device for volatile substances in blood, characterized in that: include: A housing, wherein a detection channel is arranged on the housing; The detection tube includes a sample tube for storing a substance that reacts with a blood sample to be detected and a color development tube for storing a color development reagent, and a transmission channel for the volatile detection substance in the blood sample to be detected to pass through is arranged between the sample tube and the color development tube, wherein the detection substance enters the color development tube through the transmission channel and undergoes a chemical color development reaction with the color development reagent; An image sensor is installed in the housing, and detects the color change of the color developing reagent in the color developing tube in real time and records the change length through the image sensor; A main control board is electrically connected to the image sensor, and the color change detected by the image sensor is converted into a corresponding pixel value through the main control board, and the pixel value is converted into a corresponding concentration value through a concentration calculation module provided in the main control board; A display screen is mounted on the surface of the housing, and a human-computer interaction is formed between the display screen and the operating system in the main control board, wherein the concentration of the detection substance in the current blood sample being tested can be displayed through the display screen; The power supply is installed in the shell and is electrically connected to the main control board to provide power for the entire quantitative detection equipment.

2. A portable quantitative detection device for volatile substances in blood according to claim 1, characterized in that: A pneumatic control module is arranged in the shell, and the pneumatic control module is electrically connected to the main control board, wherein one end of the pneumatic control module is connected to the color developing tube, and a negative pressure environment is formed in the color developing tube through the pneumatic control module.

3. A portable quantitative detection device for volatile substances in blood according to claim 2, characterized in that: The pneumatic control module includes an air pump installed in the shell, and one end of the air pump is connected to the color developing tube through an air pipe. When the air pump is turned on, the air in the color developing tube can be extracted through the air pipe, so that a negative pressure environment is formed in the color developing tube.

4. A portable quantitative detection device for volatile substances in blood according to claim 3, characterized in that: The pneumatic control module also includes a micro flowmeter, which is located between the color developing tube and the vacuum pump, dividing the air pipe between the color developing tube and the vacuum pump into two, wherein the two ends of one section of the air pipe are respectively connected to the vacuum pump and the micro flowmeter, and the two ends of the other section of the air pipe are respectively connected to the micro flowmeter and the color developing tube, wherein the micro flowmeter is electrically connected to the main control board.

5. A portable quantitative detection device for volatile substances in blood according to claim 4, characterized in that: An adapter and an air extraction rubber plug are also provided between the air pipe connected to the color developing tube and the color developing tube, and the air extraction rubber plug is connected to the shell through a fixing block, wherein the two ends of the adapter are respectively connected to the air pipe and the air extraction rubber plug, and a through groove is provided on the air extraction rubber plug along its axial direction.

6. A portable quantitative detection device for volatile substances in blood according to any one of claims 1 to 5, characterized in that: A detection block is arranged in the shell, and a guide channel is arranged on the detection block, wherein the axis of the guide channel coincides with the axis of the detection channel.

7. A portable quantitative detection device for volatile substances in blood according to claim 6, characterized in that: A light-emitting module is installed on the detection block, and the light-emitting module includes a light source and a cover plate fixed on the detection block, wherein the light source and the guide channel are respectively located on both sides of the detection block, and the light source illuminates the space around the detection tube by guiding light.

8. A portable quantitative detection device for volatile substances in blood according to claim 6, characterized in that: The detection block is also provided with two RFID identification modules, which are respectively located on both sides of the guide channel, wherein the RFID identification module is electrically connected to the main control board.

9. A portable quantitative detection device for volatile substances in blood according to claim 6, characterized in that: A grating is also arranged on the detection block, and the grating is close to the insertion port of the detection channel, wherein the grating is electrically connected to the main control board.

10. A portable quantitative detection device for volatile substances in blood according to claim 1, characterized in that: A micro printer is also provided on the shell, and the micro printer is electrically connected to the main control board, and the test results can be printed on paper via the micro printer.

11. A detection method, using the quantitative detection device according to any one of claims 1 to 10, characterized in that: Includes steps: S1: Press the switch button to activate the quantitative detection device, and the device jumps to the main interface after logging into the system; S2: insert the test tube assembled with the sample tube and the color developing tube into the test channel, and start the RFID recognition module after the grating detects the test tube in the test channel. After the RFID recognition module reads the relevant information of the current test tube through the RFID chip on the test tube, the interface jumps to the detection interface of the corresponding type of test tube; S3: adding the blood sample to be tested into the sample adding tube in the test tube; S4: Click the corresponding button on the detection interface, the system starts detection, drives the vacuum pump and micro flow meter through the main control board, and dynamically adjusts the detection time according to real-time data; S5: A negative pressure environment is formed inside the color tube in the detection tube by using an air pump, so that the volatile detection substance in the sample tube is diffused into the color tube and undergoes a chemical color reaction with the color reagent in the color tube. The image sensor collects the color change in real time and determines the validity of the data; S6: The pixel value extracted by the image sensor is converted into a concentration value through the concentration calculation module in the main control board in combination with the concentration conversion curve in the RFID; S7: After the test is completed, the test results are displayed on the interface and printed on paper using a micro printer.

Images