Portable quantitative detection equipment for volatile substances in blood

Abstract

The utility model provides portable quantitative detection equipment for volatile substances in blood, which belongs to the technical field of detection and 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 blood sample to be detected can be accurately calculated through matching of the main control board and the image sensor, and data are reliable.

Description

Technical Field

[0001] This utility model belongs to the field of detection technology and relates to a detection device, particularly a portable quantitative detection device for volatile substances in blood. Background Technology

[0002] Traditional detection equipment typically requires complex sample pretreatment procedures and specialized operators for quantitative analysis of toxins in blood, resulting in the following technical shortcomings in current quantitative toxin analysis methods:

[0003] Firstly, it relies on large analytical instruments, which are expensive and difficult to carry.

[0004] Secondly, the testing process is time-consuming, making it difficult to achieve rapid on-site testing;

[0005] Third, the operation is complex and requires professional personnel. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a portable quantitative detection device for volatile substances in blood that is easy to operate, fast to detect, accurate in results, and convenient to carry.

[0007] The objective of this utility model can be achieved through the following technical solution: a portable quantitative detection device for volatile substances in blood, comprising:

[0008] The housing has a detection channel.

[0009] The test tube includes a sample dispensing tube for storing a substance that reacts with the blood sample to be tested and a colorimetric tube for storing a colorimetric reagent. A transmission channel is provided between the sample dispensing tube and the colorimetric tube for the passage of a volatile test substance in the blood sample to be tested. The test substance enters the colorimetric tube through the transmission channel and undergoes a chemical colorimetric reaction with the colorimetric reagent.

[0010] An image sensor, installed inside the housing, is used to detect and record the color changes of the colorimetric reagent in the colorimetric tube in real time.

[0011] The main control board is electrically connected to the image sensor. The main control board converts the color changes detected by the image sensor into corresponding pixel values, and the density calculation module set in the main control board converts the pixel values ​​into corresponding density values.

[0012] The display screen is mounted on the surface of the housing, and the display screen forms a human-computer interaction with the operating system in the main control board. The display screen can show the concentration of the test substance in the blood sample being tested.

[0013] The power supply is installed inside the housing and is electrically connected to the main control board to provide power to the entire quantitative detection equipment.

[0014] In the aforementioned portable quantitative detection device for volatile substances in blood, a pneumatic control module is installed inside the housing and is electrically connected to the main control board. One end of the pneumatic control module is connected to the colorimetric tube, thereby creating a negative pressure environment inside the colorimetric tube.

[0015] In the aforementioned portable quantitative detection device for volatile substances in blood, the pneumatic control module includes an air pump installed inside the housing, and one end of the air pump is connected to the colorimetric tube via an air tube. When the air pump is turned on, the air inside the colorimetric tube can be drawn out through the air tube, thereby creating a negative pressure environment inside the colorimetric tube.

[0016] In the aforementioned portable quantitative detection device for volatile substances in blood, the pneumatic control module further includes a micro flow meter located between the colorimetric tube and the suction pump. The micro flow meter divides the air tube between the colorimetric tube and the suction pump into two sections. One section of the air tube is connected to the suction pump and the micro flow meter at both ends, while the other section is connected to the micro flow meter and the colorimetric tube at both ends. The micro flow meter is electrically connected to the main control board.

[0017] In the aforementioned portable quantitative detection device for volatile substances in blood, an adapter and a vacuum rubber plug are provided between the gas tube connected to the colorimetric tube and the colorimetric tube. The vacuum rubber plug is connected to the housing through a fixing block. The two ends of the adapter are connected to the gas tube and the vacuum rubber plug, respectively, and a through groove is provided on the vacuum rubber plug along its axial direction.

[0018] In the aforementioned portable quantitative detection device for volatile substances in blood, a detection block is provided inside the housing, and a guide channel is provided on the detection block, wherein the axis of the guide channel coincides with the axis of the detection channel.

[0019] In the aforementioned portable quantitative detection device for volatile substances in blood, 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. The light source and the guide channel are located on opposite sides of the detection block, and the light source illuminates the space around the detection tube by guiding light.

[0020] In the aforementioned portable quantitative detection device for volatile substances in blood, the detection block is also equipped with an RFID identification module, and there are two RFID identification modules, located on both sides of the guide channel, wherein the RFID identification module is electrically connected to the main control board.

[0021] In the aforementioned portable quantitative detection device for volatile substances in blood, a grating is also provided 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.

[0022] In the aforementioned portable quantitative detection device for volatile substances in blood, a micro printer is also installed on the casing, and the micro printer is electrically connected to the main control board, enabling the test results to be printed out on paper.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] (1) The present invention provides a portable quantitative detection device for volatile substances in blood. It has a simple structure, small size, and is easy to carry. Moreover, through the cooperation between the main control board and the image sensor, as well as the concentration conversion standard in the RFID, it can accurately calculate the concentration of volatile substances in the blood sample to be tested, and the data is reliable.

[0025] (2) By using the pneumatic control module, a negative pressure environment is created inside the colorimetric tube, thereby accelerating the flow of volatile detection substances from the sample tube to the colorimetric tube, thus improving the efficiency of the detection work.

[0026] (3) By setting up a micro flow meter, the working status of the air pump can be fed back, and the effectiveness of the detection can be monitored in real time.

[0027] (4) By setting a vacuum rubber plug, and fixing the vacuum rubber plug in the corresponding position in the housing by a fixing block, when the detection tube is inserted into the detection channel, the insertion depth of the detection tube can be accurately controlled, and good communication between the vacuum rubber plug and the air tube can be achieved.

[0028] (5) By setting a detection block inside the housing, and setting a guide channel on the detection block, wherein the axis of the guide channel coincides with the axis of the detection channel, the detection tube inserted into the detection channel can be reliably inserted into the vacuum rubber plug by relying on the guide channel, thus completing the reliable connection between the detection tube and the vacuum rubber plug.

[0029] (6) By setting a light source, the brightness around the detection tube can be improved, which facilitates the reliability of the image sensor when extracting pixel values.

[0030] (7) Install the light source 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. This avoids the generation of "light spots" and is conducive to the image sensor accurately extracting pixel values.

[0031] (8) Set the light source into a ring-shaped track structure. On the one hand, this can further avoid the generation of light spots, and on the other hand, it can expand the radiation range of the light.

[0032] (9) By setting a grating, the RFID identification module is triggered after the user inserts the detection tube, thereby ensuring that the detection tube is always in the detection channel and is not pulled out during the detection process, thus improving the reliability of the detection. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a portable quantitative detection device for volatile substances in blood according to this utility model.

[0034] Figure 2 yes Figure 1 A schematic diagram of the quantitative detection device from another perspective.

[0035] Figure 3 This is an exploded view of a portable quantitative detection device for volatile substances in blood, according to this utility model.

[0036] Figure 4 This is a partial structural diagram of a portable quantitative detection device for volatile substances in blood according to this utility model. Figure 1 .

[0037] Figure 5 This is a partial structural diagram of a portable quantitative detection device for volatile substances in blood according to this utility model. Figure 2 .

[0038] Figure 6 yes Figure 5 A structural diagram from another perspective.

[0039] In the picture,

[0040] 10. Housing; 11. Detection channel; 12. First notch; 13. Second notch; 14. Switch button;

[0041] 20. Detection tube; 21. Sample application tube; 22. Colorimetric tube; 23. Sealing silicone;

[0042] 30. Image sensor;

[0043] 40. Main control board; 41. USB interface; 42. Charging interface;

[0044] 50. Display screen;

[0045] 60. Power supply;

[0046] 70. Pneumatic control module; 71. Air pump; 72. Air hose; 73. Miniature flow meter; 74. Adapter; 75. Air pump rubber plug; 75. Through groove; 76. Fixing block;

[0047] 80. Detection block; 81. Guide channel;

[0048] 90. Light-emitting module; 91. Light source; 92. Cover plate;

[0049] 100. RFID identification module; 110. Optical grating; 120. Mini printer. Detailed Implementation

[0050] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0051] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0052] like Figures 1 to 6 As shown, this utility model provides a portable quantitative detection device for volatile substances in blood, comprising:

[0053] The housing 10 has a detection channel 11.

[0054] The detection tube 20 includes a sample dispensing tube 21 for storing substances that react with the blood sample to be tested and a colorimetric tube 22 for storing colorimetric reagents. A transmission channel is provided between the sample dispensing tube 21 and the colorimetric tube 22 for the passage of volatile detection substances in the blood sample to be tested. The detection substances enter the colorimetric tube 22 through the transmission channel and react with the colorimetric reagents to produce a chemical colorimetric reaction.

[0055] An image sensor 30 is installed inside the housing 10. The image sensor 30 is used to detect the color change of the color developing reagent in the color developing tube 22 in real time and record the length of the change.

[0056] The main control board 40 is electrically connected to the image sensor 30. The main control board 40 converts the color changes detected by the image sensor 30 into corresponding pixel values, and the main control board 40 converts the pixel values ​​into corresponding concentration values ​​through the concentration calculation module set in the main control board 40.

[0057] The display screen 50 is mounted on the surface of the housing 10, and the display screen 50 forms a human-computer interaction with the operating system in the main control board 40. The display screen 50 can display the concentration of the test substance in the blood sample being tested.

[0058] The power supply 60 is installed inside the housing 10 and is electrically connected to the main control board 40 to provide power to the entire quantitative detection equipment.

[0059] It is worth mentioning that when the blood sample to be tested is injected into the sample tube 21, the liquid in the blood (serum, blood cells, water) is absorbed by the sample tube 21. Therefore, the liquid in the blood will not enter the colorimetric tube 22 through the transmission channel and contaminate the colorimetric reagent, thereby improving the reliability of the concentration detection of the subsequent detection substances.

[0060] It is further pointed out that the sample tube 21 and the colorimetric tube 22 are connected by a sealing silicone 23 for gas transmission, so that the analyte after the reaction in the sample tube 21 is carried into the colorimetric tube by air as a carrier for colorimetric reaction.

[0061] This utility model provides a portable quantitative detection device for volatile substances in blood. It has a simple structure, small size, and is easy to carry. Moreover, through the cooperation between the main control board 40 and the image sensor 30, as well as the concentration conversion standard in the RFID, it can accurately calculate the concentration of volatile substances in the blood sample to be tested, and the data is reliable.

[0062] Preferably, since the sample application tube 21 and the colorimetric tube 22 are connected by a sealing silicone 23, and due to the properties of the sealing silicone 23, the transfer of volatile detection substances from the sample application tube 21 to the colorimetric tube 22 is relatively slow, affecting the detection efficiency. Therefore, in order to improve the detection efficiency, a pneumatic control module 70 is provided inside the housing 10, and this 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 colorimetric tube 22, and the pneumatic control module 70 creates a negative pressure environment inside the colorimetric tube 22, thereby accelerating the flow of volatile detection substances from the sample application tube 21 to the colorimetric tube 22, thus improving the detection efficiency.

[0063] Furthermore, the pneumatic control module 70 includes a vacuum pump 71 installed in the housing 10, and one end of the vacuum pump 71 is connected to the colorimetric tube 22 through an air pipe 72. When the vacuum pump 71 is turned on, it can draw the air out of the colorimetric tube 22 through the air pipe 72, so that a negative pressure environment is formed in the colorimetric tube 22, thereby accelerating the flow of the detection substance from the sample tube 21 to the colorimetric tube 22.

[0064] Furthermore, the pneumatic control module 70 also includes a micro flow meter 73, which is located between the colorimetric tube 22 and the air pump 71. The micro flow meter 73 divides the air pipe 72 between the colorimetric tube 22 and the air pump 71 into two parts. One end of the air pipe 72 is connected to the air pump 71 and the micro flow meter 73, respectively, and the other end of the air pipe 72 is connected to the micro flow meter 73 and the colorimetric tube 22, respectively. The micro flow meter 73 is electrically connected to the main control board 40.

[0065] In this embodiment, by setting up a micro flow meter 73, the working status of the air pump 71 can be fed back, and the effectiveness of the detection can be monitored in real time.

[0066] Furthermore, an adapter 74 and a vacuum rubber plug 75 are provided between the gas pipe 72 connected to the color developing tube 22 and the color developing tube 22. The vacuum rubber plug 75 is connected to the housing 10 through a fixing block 76. The two ends of the adapter 74 are connected to the gas pipe 72 and the vacuum rubber plug 75 respectively. The vacuum rubber plug 75 is provided with a through groove 751 along its axial direction.

[0067] It is worth mentioning that when the detection tube 20 is inserted into the detection channel 11, its insertion depth needs to be controlled. However, the air tube 72 is generally made of flexible material and is not easy to fix. When the detection tube 20 is inserted into the detection channel 11, the detection tube 20 and the air tube 72 are squeezed together. On the one hand, it is difficult to control the insertion depth of the detection tube 20, and on the other hand, the detection tube 20 and the air tube 72 cannot be accurately connected. Therefore, in this embodiment, by setting a suction rubber plug 75, and fixing the suction rubber plug 75 to a corresponding position in the housing 10 by a fixing block 76, when the detection tube 20 is inserted into the detection channel 11, the insertion depth of the detection tube 20 can be accurately controlled, and good conductivity can be achieved between the suction rubber plug 75 and the air tube 72.

[0068] It is also worth mentioning that, because the vacuum rubber plug 75 is installed inside the housing 10 via the fixing block 76, there is a certain distance between the vacuum rubber plug 75 and the upper surface of the housing 10. Since the insertion port of the detection channel 11 is located on the upper surface of the housing 10, the detection tube 20 is inserted into the insertion port of the detection channel 11 and moves downwards until it connects with the vacuum rubber plug 75, which involves a certain stroke. This stroke can cause the detection tube 20 to deviate during its downward movement, ultimately resulting in the detection tube 20 not being able to be accurately inserted into the vacuum rubber plug 75, or requiring a certain amount of time to insert the detection tube 20 into the vacuum rubber plug 75, ultimately affecting the detection efficiency.

[0069] Therefore, in order to solve the above-mentioned problems, in this embodiment, a detection block 80 is provided inside the housing 10, and a guide channel 81 is provided on the detection block 80, wherein the axis of the guide 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 vacuum rubber plug 75 by relying on the guide channel 81, thereby completing the reliable connection between the detection tube 20 and the vacuum rubber plug 75.

[0070] Furthermore, the detection device in this embodiment extracts the pixel values ​​of color changes within the color developing tube 22 using an image sensor 30. However, the interior of the housing 10 is relatively dark. Additionally, the detection block 80, designed to ensure accurate insertion of the detection tube 20 into the vacuum plug 75, further obstructs the light around the detection tube 20. Even if the detection block 80 is made transparent, the dim lighting situation cannot be improved. Therefore, to improve the accuracy of the image sensor 30 in extracting the pixel values ​​of color changes within the color developing tube 22, a light-emitting module 90 can be installed on the detection block 80. This light-emitting module 90 includes a light source 91 and a cover plate 92 fixed to the light source 91 on the detection block 80.

[0071] In this embodiment, by setting the light source 91, the brightness around the detection tube 20 can be improved, thereby facilitating the reliability of the image sensor 30 in extracting pixel values.

[0072] It is worth mentioning that the light source 91 and the guide channel 81 are located on both sides of the detection block 80, and the light source 91 illuminates the space around the detection tube 20 by guiding light.

[0073] In this embodiment, the light source 91 does not illuminate the detection tube 20 directly because the detection tube 20 is generally made of a transparent material, such as glass. If the light source 91 illuminates the detection tube 20 directly, a bright spot will be formed on the detection tube 20. This glaring spot will obscure some color changes, causing the image sensor 30 to be unable to accurately extract the corresponding pixel value. By mounting the light source 91 on the detection block 80, the detection block 80 can be used as a "light guide plate," converting the point light source into a surface light source. This avoids the generation of "spots" and facilitates the image sensor 30 in accurately extracting pixel values.

[0074] Furthermore, it is pointed out that the light source 91 is set in a ring-shaped racetrack structure. On the one hand, this can further avoid the generation of light spots, and on the other hand, it can expand the radiation range of the light.

[0075] Preferably, an RFID identification module 100 is also provided on the detection block 80, and there are two RFID identification modules 100, which are located on both sides of the guide channel 81 respectively. The RFID identification module 100 is electrically connected to the main control board 40.

[0076] In this embodiment, an RFID chip is provided on the wall of the detection tube 20 to record information of the detection tube 20, such as expiration date, batch number, test items, whether it has been used, and verification parameters after production experiment. 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.

[0077] It is worth mentioning that after the detection is completed, the pixel values ​​extracted by the image sensor 30 are converted into concentration according to the function curve Y=AX+B, where X is the pixel value extracted by the image sensor 30, Y is the final concentration value, and A and B are the calibration parameters obtained from the experiment after the production of the detection tube 20.

[0078] Preferably, a grating 110 is also provided on the detection block 80, and the grating 110 is close to the insertion port of the detection channel 11, wherein the grating 110 is electrically connected to the main control board 40.

[0079] In this embodiment, by setting the grating 110, the RFID identification module 100 is triggered after the user inserts the detection tube 20, thereby ensuring that the detection tube 20 is always in the detection channel 11 and is not pulled out during the detection process, thus improving the reliability of the detection.

[0080] Preferably, two notches are provided on the housing 10, namely a first notch 12 and a second notch 13. The first notch 12 corresponds to the position of the USB interface 41 on the main control board 40, and the second notch 13 corresponds to the position of the charging interface 42 on the main control board 40. When a device compatible with the USB interface 41 is connected to the first notch 12, the data stored in the detection device can be exported. When a device compatible with the charging interface 42 is connected to the second notch 13, the power supply 60 can be charged.

[0081] Preferably, a micro printer 120 is also provided on the housing 10, and the micro printer 120 is electrically connected to the main control board 40, so that the test results can be printed out on paper through the micro printer 120.

[0082] Preferably, the housing 10 is also provided with a switch button 14, which is electrically connected to the main control board 40 to realize the opening and closing of the entire detection equipment.

[0083] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0084] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0085] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A portable device for quantitative detection of volatile substances in blood, characterized in that, include: The housing has a detection channel. The test tube includes a sample dispensing tube for storing substances that react with the blood sample to be tested and a colorimetric tube for storing colorimetric reagents, and a transmission channel is provided between the sample dispensing tube and the colorimetric tube for the passage of volatile test substances in the blood sample to be tested. The image sensor and main control board are installed inside the housing, and the image sensor is electrically connected to the main control board; The display screen, mounted on the surface of the housing, can display the concentration value of the substance being tested in the blood sample. The power supply is installed inside the housing and is electrically connected to the main control board to provide power to the entire quantitative detection equipment.

2. The portable quantitative detection device for volatile substances in blood according to claim 1, characterized in that, A pneumatic control module is installed inside the housing and is electrically connected to the main control board. One end of the pneumatic control module is connected to the color developing tube, and a negative pressure environment is created inside the color developing tube through the pneumatic control module.

3. The 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 inside the housing, 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, it can draw the air out of the color developing tube through the air pipe, so that a negative pressure environment is formed inside the color developing tube.

4. The portable quantitative detection device for volatile substances in blood according to claim 3, characterized in that, The pneumatic control module also includes a micro flow meter located between the colorimetric tube and the air pump, which divides the air pipe between the colorimetric tube and the air pump into two. One end of the air pipe is connected to the air pump and the micro flow meter, respectively, while the other end of the air pipe is connected to the micro flow meter and the colorimetric tube, respectively. The micro flow meter 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 a vacuum rubber plug are provided between the gas tube connected to the color developing tube and the color developing tube. The vacuum rubber plug is connected to the housing through a fixing block. The two ends of the adapter are connected to the gas tube and the vacuum rubber plug respectively, and the vacuum rubber plug has a through groove 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 provided inside the housing, and a guide channel is provided 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, The detection block is equipped with a light-emitting module, which includes a light source and a cover plate fixed on the detection block. The light source and the guide channel are located on opposite sides of the detection block. 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 equipped with two RFID identification modules, located on both sides of the guide channel. The RFID identification modules are 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 provided on the detection block, and the grating is close to the insertion port of the detection channel. 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, The casing is also equipped with a miniature printer, which is electrically connected to the main control board. The test results can be printed out using the miniature printer.

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