Volume fixing device for blood concentration detection

Abstract

According to the technical scheme, the constant volume device is characterized by comprising a base, two supporting plates are fixedly mounted on the top face of the base, a mounting plate is fixedly mounted between the supporting plates, and a constant volume bin is fixedly mounted in the mounting plate; the constant volume assembly is arranged above the base and used for carrying out constant volume on the blood medicine content in the constant volume bins, by arranging the constant volume assembly, the blood medicine content stored in the two constant volume bins can be limited, the blood medicine content stored in the two constant volume bins can be consistent, and during detection, the blood medicine content in the two constant volume bins can be accurately detected. The content of collected blood medicine added in blood medicine detection can be accurately controlled, the situation that residual air exists in the constant volume bin and influences the collection amount during blood medicine concentration detection is avoided, the phenomenon that detection results have errors due to the fact that the addition content of the detected blood medicine is different is effectively prevented, and the accuracy of the detection results is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of blood drug concentration detection technology, and specifically to a volumetric device for blood drug concentration detection. Background Technology

[0002] Blood drug concentration testing involves analyzing blood samples from patients taking long-term medications to determine the concentration of the drug in the blood. This helps prevent harm from drug overdose and ensures safe, effective, and rational medication use. Therefore, a volumetric device for blood drug concentration testing is needed.

[0003] According to Chinese Patent Publication No. CN218824220U, a volume-regulating device for blood drug concentration detection is disclosed. This device features a piston that moves by pressing a connecting rod to dispense liquid and adjust the volume. The dispensing volume is controlled by the scale markings on the connecting rod. It is convenient to use and avoids the problem of large errors caused by manually using a dropper, thus improving the accuracy of volume adjustment and ensuring the accuracy of the test results.

[0004] However, in the above scheme, when staff use this volumetric device for blood drug concentration detection to collect blood drugs quantitatively, pressing the connecting rod causes the sliding cylinders at both ends of the connecting rod to move downwards along the first support rod. During the downward movement of the connecting rod, the piston rod is squeezed, and the piston rod pushes the piston downwards, injecting the liquid in the syringe into the volumetric bottle. During this process, the connecting rod moves downwards along the scale, and the liquid output of the syringe is controlled by the scale on the scale to complete the quantitative collection process. However, the following shortcomings still exist: When the blood drug is poured into the syringe and the two piston rods slide into the syringe simultaneously to squeeze the blood drug into the volumetric bottle, because the piston rod slides into the syringe after the blood drug is manually poured into the two syringes, different amounts of air will remain in the upper part of the syringe. When the piston rod pushes the residual air to squeeze the blood drug, the syringe with more residual air will cause the blood drug to flow into the corresponding test vessel first, which will easily lead to different amounts in the two test vessels. This can easily affect the value of the blood drug concentration test of the two test vessels by the staff. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a volumetric device for blood drug concentration detection. This device solves the problem that when blood drugs are manually poured into two syringes, the upper part of the syringe often retains varying amounts of air. This causes the piston rod to push the remaining air, compressing the blood drug. Syringes with more residual air tend to have the blood drug flow into the corresponding test vessel first, leading to discrepancies in the amounts in the two test vessels and potentially affecting the subsequent blood drug concentration readings obtained by the operator.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A volume-regulating device for blood drug concentration detection includes: a base, two support plates fixedly mounted on the top surface of the base, an mounting plate fixedly mounted between the support plates, a blood drug chamber fixedly mounted on one side of the support plates, a fixing plate fixedly mounted between the two blood drug chambers, and a volume-regulating chamber fixedly mounted inside the mounting plate; and a volume-regulating component disposed above the base for regulating the blood drug content inside the volume-regulating chamber.

[0008] By adopting the above technical solution and setting up a volume control component, the blood drug content stored in the two volume control chambers can be limited, ensuring that the blood drug content stored is consistent. This allows for accurate control of the blood drug content added during testing, avoiding residual air inside the volume control chambers that could affect the sample size during blood drug concentration testing. It effectively prevents errors in test results caused by different blood drug addition contents, thus significantly improving the accuracy of the test results.

[0009] Preferably, the volume-regulating assembly includes: an electric push rod, which is fixedly installed inside the fixed plate; a connecting plate is fixedly installed at one end of the telescopic shaft of the electric push rod; piston plates are fixedly installed at both ends of the connecting plate; the piston plates are slidably inserted into the volume-regulating chamber; a positioning rod is fixedly installed on the bottom surface of the connecting plate; a locking rail is fixedly installed on the top surface of the mounting plate; a sliding block is slidably inserted into the outer wall of the locking rail; an industrial computer is provided on one side; the electric push rod is electrically connected to the industrial computer; a limit block is fixedly installed on one side of the sliding block; an infrared rangefinder is fixedly installed inside the limit block; the infrared rangefinder is electrically connected to the industrial computer; a connecting block is fixedly installed on one side of the sliding block; a threaded hole is opened on the top surface of the connecting block; a brake motor is fixedly installed on the top surface of the mounting plate; the brake motor is electrically connected to the industrial computer; a threaded rod is fixedly installed at one end of the rotating shaft of the brake motor; the threaded rod is threadedly connected to the threaded hole; and a one-way exhaust valve is fixedly installed inside the piston plate.

[0010] By adopting the above technical solution, an electric push rod is installed. When the electric push rod is activated, it can drive the connecting plate to move up and down, thereby adjusting the height of the piston plate inside the fixed-volume chamber and limiting the internal capacity of the fixed-volume chamber. A brake motor is installed. When the brake motor is activated, it can drive the threaded rod to rotate, thereby driving the sliding block to slide up and down along the outer wall of the locking rail. An infrared rangefinder can detect the height of the sliding block. When the required internal capacity of the fixed-volume chamber is input into the industrial computer, and the computer calculates the height of the piston plate inside the fixed-volume chamber when the required capacity is reached, it controls the brake motor to start, causing it to drive the sliding block. As the infrared rangefinder detects that the volume has reached the designated height, it controls the brake motor to close, fixing the sliding block at the designated height. Simultaneously, it controls the electric push rod to start, causing the connecting plate to drive the piston plate inside the volume-fixing chamber to rise. When the positioning rod contacts the limit block, the piston plate reaches the required position for the volume-fixing chamber's internal capacity. Then, blood drugs are added to the volume-fixing chamber through the blood drug tank. During the blood drug addition process, the air inside the volume-fixing chamber is expelled through the one-way exhaust valve. After the blood drug addition is completed, the electric push rod pushes the piston plate down, adding the blood drug into the experimental vessel for blood drug collection, ensuring consistent blood drug content.

[0011] Preferably, a protective plate is fixedly installed on the top surface of the locking rail, and a limit plate is fixedly installed at one end of the threaded rod.

[0012] By adopting the above technical solution and setting a protective plate, the protective plate and the limiting plate can limit the movement range of the sliding block and prevent it from falling off.

[0013] Preferably, a touch sensor is fixedly installed on the top surface of the positioning rod, and the touch sensor is electrically connected to an industrial computer.

[0014] By adopting the above technical solution and setting a touch sensor, the contact between the positioning rod and the limit block can be detected, and the information can be transmitted to the industrial computer. When the industrial computer receives the contact information, it controls the electric push rod to close.

[0015] Preferably, a bellows is fixedly installed inside the blood drug compartment, and a first solenoid valve is fixedly installed at one end of the bellows. The first solenoid valve is fixedly installed inside the piston plate.

[0016] By adopting the above technical solution and setting up a corrugated pipe, the blood drug tank can add blood drugs to the volume control tank through the corrugated pipe. By setting up a first solenoid valve, the backflow of blood drugs in the volume control tank through the corrugated pipe can be effectively prevented during blood drug collection.

[0017] Preferably, the outer wall of the fixed-volume chamber is provided with an installation groove, and an observation plate is fixedly installed inside the installation groove.

[0018] By adopting the above technical solution and setting up an observation board, users can observe the blood drug addition status inside the constant volume chamber, thus improving practicality.

[0019] Preferably, the bottom surface of the fixed-volume chamber is provided with a drain port, a second solenoid valve is fixedly installed inside the drain port, and a drain pipe is provided inside the drain port.

[0020] By adopting the above technical solution and setting a second solenoid valve, when blood drugs are added inside the constant volume chamber, the second solenoid valve can be controlled to close the drain port to prevent blood drugs from dripping from the drain port. After the blood drugs are added, the second solenoid valve is opened, and the blood drugs can be delivered to the experimental vessel through the drain pipe.

[0021] Preferably, a threaded connector is fixedly installed at one end of the drain pipe, and the threaded connector is threadedly connected to the drain port.

[0022] By adopting the above technical solution and setting threaded joints, the drain pipe can be installed and removed more easily, making it convenient for cleaning and replacement later.

[0023] In summary, the present invention has the following main beneficial effects:

[0024] By setting up a volume control component, the amount of blood drug stored in the two volume control chambers can be limited, ensuring that the amount of blood drug that can be stored is consistent. This allows for accurate control of the amount of blood drug added during testing, avoiding residual air inside the volume control chambers that could affect the amount of blood drug collected during blood drug concentration testing. It effectively prevents errors in test results caused by different amounts of blood drug added, thus significantly improving the accuracy of the test results.

[0025] By setting a protective plate, the protective plate and the limiting plate can limit the movement range of the sliding block to prevent it from falling off. By setting a contact sensor, the contact between the positioning rod and the limiting block can be detected and the information can be transmitted to the industrial computer. When the industrial computer receives the contact information, it controls the electric push rod to close. By setting a bellows, the blood drug tank can add blood drugs to the volume control tank through the bellows. By setting a first solenoid valve, the backflow of blood drugs in the volume control tank through the bellows can be effectively prevented during blood drug collection. By setting an observation plate, the user can observe the blood drug addition in the volume control tank, improving practicality. By setting a second solenoid valve, when blood drugs are added to the volume control tank, the second solenoid valve can be controlled to close the drain port to prevent blood drugs from dripping from the drain port. After the blood drugs are added, the second solenoid valve is opened, and the blood drugs can be delivered to the experimental vessel through the drain pipe. By setting a threaded joint, the drain pipe can be easily installed and removed, facilitating later cleaning and replacement. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the blood drug storage structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the connecting plate structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the mounting plate structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the card-mounted rail structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the sliding block structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the fixed-volume chamber structure of the present invention.

[0033] Reference numerals: 1. Base; 2. Support plate; 3. Mounting plate; 4. Blood drug chamber; 5. Fixing plate; 6. Volume control chamber; 7. Electric push rod; 8. Connecting plate; 9. Piston plate; 10. Positioning rod; 11. Locking rail; 12. Sliding block; 13. Limiting block; 14. Infrared rangefinder; 15. Connecting block; 16. Threaded hole; 17. Brake motor; 18. Threaded rod; 19. Protective plate; 20. Limiting plate; 21. Touch sensor; 22. Bellows; 23. First solenoid valve; 24. Mounting groove; 25. Observation plate; 26. Drain port; 27. Second solenoid valve; 28. Threaded joint; 29. ​​Drain pipe; 30. One-way exhaust valve. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] refer to Figures 1-6A volume-regulating device for blood drug concentration detection includes a base 1. Two support plates 2 are fixedly installed on the top surface of the base 1, and an mounting plate 3 is fixedly installed between the support plates 2. A blood drug chamber 4 is fixedly installed on one side of the support plate 2, and a fixing plate 5 is fixedly installed between the two blood drug chambers 4. A volume-regulating chamber 6 is fixedly installed inside the mounting plate 3. A volume-regulating assembly is placed above the base 1 for regulating the blood drug content inside the volume-regulating chamber 6. The volume-regulating assembly includes an electric push rod 7, which is fixedly installed inside the fixing plate 5. A connecting plate 8 is fixedly installed at one end of the telescopic shaft of the electric push rod 7. Piston plates 9 are fixedly installed at both ends of the connecting plate 8. The piston plates 9 are slidably inserted into the inside of the volume-regulating chamber 6. The bottom surface of the connecting plate 8... A positioning rod 10 is fixedly installed. A locking rail 11 is fixedly installed on the top surface of the mounting plate 3. A sliding block 12 is slidably inserted into the outer wall of the locking rail 11. An industrial computer is installed on one side of the sliding block 12. An electric push rod 7 is electrically connected to the industrial computer. A limit block 13 is fixedly installed on one side of the sliding block 12. An infrared rangefinder 14 is fixedly installed inside the limit block 13 and is electrically connected to the industrial computer. A connecting block 15 is fixedly installed on one side of the sliding block 12. A threaded hole 16 is opened on the top surface of the connecting block 15. A brake motor 17 is fixedly installed on the top surface of the mounting plate 3 and is electrically connected to the industrial computer. A threaded rod 18 is fixedly installed at one end of the rotating shaft of the brake motor 17. The threaded rod 18 and the threaded hole 16 are connected to the connecting block 17. The piston plate 9 is fixedly installed with a one-way exhaust valve 30 through a threaded connection. An electric push rod 7 is installed; when activated, it moves the connecting plate 8 up and down, adjusting the height of the piston plate 9 inside the fixed-volume chamber 6 and thus limiting its internal capacity. A brake motor 17 is installed; when activated, it rotates the threaded rod 18, causing the sliding block 12 to slide up and down along the outer wall of the locking rail 11. An infrared rangefinder 14 detects the height of the sliding block 12. When the required capacity of the fixed-volume chamber 6 is input into the industrial computer, and the computer calculates the height of the piston plate 9 inside the chamber when the required capacity is reached, it activates the brake motor 17. This causes the sliding block 12 to rise. When the infrared rangefinder 14 detects that it has reached the specified height, it controls the brake motor 17 to close, fixing the sliding block 12 at the specified height. At the same time, it controls the electric push rod 7 to start, causing the connecting plate 8 to drive the piston plate 9 inside the volume-fixing chamber 6 to rise. When the positioning rod 10 contacts the limit block 13, the piston plate 9 can reach the required position of the volume-fixing chamber 6. Then, blood drugs are added to the inside of the volume-fixing chamber 6 through the blood drug chamber 4. During the blood drug addition process, the air inside the volume-fixing chamber 6 will be discharged through the one-way exhaust valve 30. After the blood drug addition is completed, the electric push rod 7 pushes the piston plate 9 down to add the blood drug into the experimental vessel for blood drug collection, ensuring that the blood drug collection content is consistent.

[0036] refer to Figures 2-4A protective plate 19 is fixedly installed on the top surface of the locking rail 11, and a limiting plate 20 is fixedly installed on one end of the threaded rod 18. By setting the protective plate 19, the protective plate 19 and the limiting plate 20 can limit the movement range of the sliding block 12 and prevent it from falling off. A touch sensor 21 is fixedly installed on the top surface of the positioning rod 10. The touch sensor 21 is electrically connected to the industrial computer. By setting the touch sensor 21, the contact status between the positioning rod 10 and the limiting block 13 can be detected, and the information can be transmitted to the industrial computer. When the industrial computer... After receiving the contact information, the computer controls the electric push rod 7 to close. A bellows 22 is fixedly installed inside the blood drug chamber 4, and a first solenoid valve 23 is fixedly installed at one end of the bellows 22. The first solenoid valve 23 is fixedly installed inside the piston plate 9. By setting the bellows 22, the blood drug chamber 4 can add blood drugs to the volume control chamber 6 through the bellows 22. By setting the first solenoid valve 23, the backflow of blood drugs in the volume control chamber 6 through the bellows 22 can be effectively prevented during blood drug collection.

[0037] refer to Figures 2-7 The outer wall of the volume-fixing chamber 6 is provided with an installation groove 24, and an observation plate 25 is fixedly installed inside the installation groove 24. By setting the observation plate 25, the user can observe the blood drug addition inside the volume-fixing chamber 6, improving its practicality. The bottom surface of the volume-fixing chamber 6 is provided with a drain port 26, and a second solenoid valve 27 is fixedly installed inside the drain port 26. A drain pipe 29 is set inside the drain port 26. By setting the second solenoid valve 27, when blood drugs are added inside the volume-fixing chamber 6, the second solenoid valve 27 can be controlled to close the drain port 26 to prevent blood drugs from dripping from the drain port 26. After the blood drugs are added, the second solenoid valve 27 is opened, and the blood drugs can be delivered to the experimental vessel through the drain pipe 29. A threaded connector 28 is fixedly installed at one end of the drain pipe 29. The threaded connector 28 is threadedly connected to the drain port 26. By setting the threaded connector 28, the drain pipe 29 can be better installed and removed, facilitating later cleaning and replacement.

[0038] Working principle: Please refer to Figures 1-7As shown, during use, by setting an electric push rod 7, when the electric push rod 7 is activated, it can drive the connecting plate 8 to move up and down, thereby adjusting the height of the piston plate 9 inside the fixed-volume chamber 6, thus limiting the internal capacity of the fixed-volume chamber 6. By setting a holding brake motor 17, when the holding brake motor 17 is activated, it can drive the threaded rod 18 to rotate, thereby driving the sliding block 12 to slide up and down along the outer wall of the locking rail 11. The infrared rangefinder 14 can detect the height of the sliding block 12. When the required internal capacity of the fixed-volume chamber 6 is input into the industrial computer, and the internal computer calculates the height of the piston plate 9 inside the fixed-volume chamber 6 when the required capacity is reached, it controls the holding brake motor 14 to move up and down. The brake motor 17 starts, causing the sliding block 12 to rise. When the infrared rangefinder 14 detects that it has reached the designated height, it controls the brake motor 17 to close, fixing the sliding block 12 at the designated height. At the same time, it controls the electric push rod 7 to start, causing the connecting plate 8 to drive the piston plate 9 inside the volume-regulating chamber 6 to rise. When the positioning rod 10 contacts the limit block 13, the piston plate 9 reaches the required position for the volume-regulating chamber 6. Then, blood drugs are added to the volume-regulating chamber 6 through the blood drug chamber 4. During the blood drug addition process, the air inside the volume-regulating chamber 6 is discharged through the one-way exhaust valve 30. After the blood drug addition is completed, the electric push rod 7 pushes the piston plate 9. The pressure is applied to add blood drugs to the experimental vessel for blood drug collection, ensuring consistent blood drug concentration. A protective plate 19, along with a limiting plate 20, limits the movement range of the sliding block 12, preventing it from falling off. A contact sensor 21 detects the contact between the positioning rod 10 and the limiting block 13 and transmits this information to the industrial computer. Upon receiving the contact information, the industrial computer controls the electric push rod 7 to close. A bellows 22 allows the blood drug chamber 4 to add blood drugs to the volumetric chamber 6. A first solenoid valve 23 effectively prevents blood drug contamination during collection. During collection, the blood drug inside the volumetric chamber 6 experiences backflow through the bellows 22. By setting up an observation plate 25, the user can observe the blood drug addition process inside the volumetric chamber 6, improving practicality. By setting up a second solenoid valve 27, when blood drug is added inside the volumetric chamber 6, the user can control the second solenoid valve 27 to close the drain port 26 to prevent blood drug from dripping from the drain port 26. After the blood drug is added, the second solenoid valve 27 is opened, and the blood drug can be delivered to the experimental vessel through the drain pipe 29. By setting up a threaded connector 28, the drain pipe 29 can be easily installed and removed, facilitating later cleaning and replacement.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A volumetric device for blood drug concentration detection, characterized in that, Include: Base (1), the top surface of the base (1) is fixedly installed with two support plates (2), the support plate (2) is fixedly installed with mounting plate (3) between, one side of the support plate (2) is fixedly installed with blood medicine warehouse (4), two blood medicine warehouses (4) are fixedly installed with fixed plate (5) between, the inside of the mounting plate (3) is fixedly installed with constant volume warehouse (6); Constant volume assembly, the constant volume assembly is arranged above the base (1), is used for constant volume of blood medicine content in the constant volume warehouse (6) inside.

2. The volumetric device for blood concentration detection according to claim 1, characterized in that The constant volume assembly includes: Electric push rod (7), the electric push rod (7) is fixedly installed in the inside of the fixed plate (5), one end of the telescopic shaft of the electric push rod (7) is fixedly installed with connecting plate (8), both ends of the connecting plate (8) are fixedly installed with piston plate (9), the piston plate (9) is slidably inserted in the inside of the constant volume warehouse (6), the bottom surface of the connecting plate (8) is fixedly installed with positioning rod (10), the top surface of the mounting plate (3) is fixedly installed with clamping rail (11), the outer wall of the clamping rail (11) is slidably inserted with sliding block (12), one side of the sliding block (12) is fixedly installed with limit block (13), the inside of the limit block (13) is fixedly installed with infrared range finder (14), the infrared range finder (14) is electrically connected with industrial computer, one side of the sliding block (12) is fixedly installed with connecting block (15), the top surface of the connecting block (15) is provided with threaded hole (16), the top surface of the mounting plate (3) is fixedly installed with band brake motor (17), the band brake motor (17) is electrically connected with industrial computer, one end of the rotating shaft of the band brake motor (17) is fixedly installed with threaded rod (18), the threaded rod (18) is threadedly connected with the threaded hole (16), the inside of the piston plate (9) is fixedly installed with one-way exhaust valve (30).

3. A volumetric device for blood concentration detection according to claim 2, characterized in that, The top surface of the clamping rail (11) is fixedly installed with protective plate (19), one end of the threaded rod (18) is fixedly installed with limit disc (20).

4. The volumetric device for blood concentration detection according to claim 2, wherein, The top surface of the positioning rod (10) is fixedly installed with touch sensor (21), the touch sensor (21) is electrically connected with industrial computer.

5. The volumetric device for blood concentration detection according to claim 2, wherein, The inside of the blood medicine warehouse (4) is fixedly installed with bellows (22), one end of the bellows (22) is fixedly installed with first electromagnetic valve (23), the inside of the first electromagnetic valve (23) is fixedly installed with the piston plate (9).

6. The volumetric device for blood concentration detection according to claim 1, wherein, The outer wall of the constant volume warehouse (6) is provided with mounting groove (24), the inside of the mounting groove (24) is fixedly installed with observation plate (25).

7. The volumetric device for blood concentration detection according to claim 1, wherein, The bottom surface of the constant volume warehouse (6) is provided with drainage port (26), the inside of the drainage port (26) is fixedly installed with second electromagnetic valve (27), the inside of the drainage port (26) is provided with drainage pipe (29).

8. A volumetric device for blood concentration detection according to claim 7, characterized in that, One end of the drainage pipe (29) is fixedly installed with threaded joint (28), the threaded joint (28) is threadedly connected with the drainage port (26).

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