An automatic sampling device for injection solution component detection

Abstract

The utility model relates to technical fields especially a kind of automatic sampling device of injection composition detection, including injection medicine bottle, workstation, set on the sampling and injection mechanism and rotating mechanism of workstation;The bottle mouth of injection medicine bottle is vertically set in the upper of sampling and injection mechanism;The sampling and injection mechanism is used to fix syringe and drive the piston handle of syringe to realize pull-out, push-in action;The sampling and injection mechanism is connected on rotating mechanism;Rotating mechanism drives the syringe on sampling and injection mechanism to rotate, makes the axis of the needle of syringe and the axis of injection medicine bottle coincide.The utility model has the beneficial effect that in the automatic sampling device of injection composition detection of the utility model, through the rotation of sampling and injection mechanism and rotating mechanism, inverted liquid extraction is carried out, the problem of inaccurate sampling when injection medicine bottle liquid is not full is solved, and the position and extraction amount are accurately controlled by sampling and injection mechanism and rotating mechanism, so as to reduce error.

Description

Technical Field

[0001] This utility model relates to the field of laboratory instrument and equipment technology, and in particular to an automatic sampling device for detecting the components of an injection solution. Background Technology

[0002] In existing technologies, sampling of injectable solutions is typically done manually. Operators use syringes to directly draw liquid from the vial, for example, by drawing from the vial from above and then injecting it into the testing container. This method is prone to inaccurate sampling when the vial is not full (e.g., half-full). Furthermore, the liquid path, usually the syringe, may not be replaced, potentially causing cross-contamination and affecting the accuracy of the test results. In addition, manual operation is inefficient and cannot meet the needs of industrial-scale online testing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automatic sampling device for detecting the components of an injection solution that can ensure accurate sampling even when the amount of liquid medicine is small.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an automatic sampling device for detecting the components of an injection solution is provided, including an injection solution vial, a worktable, and an injection mechanism and a rotation mechanism set on the worktable. The injection vial is positioned vertically downwards above the injection mechanism; The injection mechanism is used to fix the syringe, which includes a syringe barrel and a piston handle; the injection mechanism is also used to drive the piston handle of the syringe to pull out and push into the syringe barrel. The injection mechanism is connected to the rotating mechanism; the rotating mechanism drives the syringe on the injection mechanism to rotate, so that the axis of the syringe needle coincides with the axis of the injection vial.

[0005] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the sampling mechanism includes a first-stage lead screw slide. The first-stage lead screw slide includes a first fixed plate, a syringe fixed end disposed on the first fixed plate, a first slide, a first lead screw, and a first driving member; The first driving component drives the first lead screw to rotate, thereby causing the first slide to move on the first lead screw; The first slide is provided with a piston handle groove to accommodate the tail of the piston handle; The injection mechanism is connected to the rotating mechanism via a first fixed plate.

[0006] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the syringe fixing end includes an upper plate and a lower plate, and a gap is provided between the upper plate and the lower plate to fix the tail end of the syringe.

[0007] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the syringe fixing end includes a syringe fixing head and a connecting plate. One end of the syringe fixing head is provided with a groove for fixing the tail end of the syringe, and the other end is inserted into the connecting plate.

[0008] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the surface of the groove is provided with a rubber layer.

[0009] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the first driving component is a servo motor with an encoder.

[0010] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the sampling mechanism includes a first-stage screw slide and a second-stage screw slide; The first-stage lead screw slide includes a first fixed plate, a syringe fixed end disposed on the first fixed plate, a first slide, a first lead screw, and a first driving member; The first driving component drives the first lead screw to rotate, thereby causing the first slide to move on the first lead screw; The first slide is provided with a piston handle groove that can accommodate the tail of the piston handle; The second-stage lead screw slide includes a second fixed plate, a second slide mounted on the second fixed plate, a second lead screw, and a second driving member; The second driving element drives the second lead screw to rotate, thereby causing the second slide to move on the second lead screw; The first fixing plate is fixedly connected to the second slide. The injection mechanism is connected to the rotating mechanism via a second fixed plate.

[0011] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the second driving component is a servo motor with an encoder.

[0012] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, a cuvette is provided on the workbench surface.

[0013] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the rotating mechanism is an RTS9060 rotary indexing plate.

[0014] The beneficial effects of this invention are as follows: In the automatic sampling device for detecting the components of injectable solutions, the injectable solution bottle is vertically inverted and positioned above the injection mechanism. Liquid is drawn by rotating the injection mechanism and the rotating mechanism, solving the problem of inaccurate sampling when the injectable solution bottle is not full. The injection mechanism and the rotating mechanism precisely control the position and the amount drawn, reducing errors. Furthermore, the entire process is completely contactless, avoiding contamination (existing technologies involve manually handling syringes and bottles, which may lead to contact contamination). The syringes are disposable, ensuring aseptic operation. This automatic sampling device for detecting the components of injectable solutions is automated, improving efficiency, and can be integrated into online detection systems (such as Raman detection modules), supporting industrial applications. Attached Figure Description

[0015] Figure 1 This is a partial structural schematic diagram of the automatic sampling device for detecting the components of an injection solution, which is a specific embodiment of the present invention. Figure 2 This is a schematic diagram of the automatic sampling device for detecting the components of an injection solution, which is a specific embodiment of the present invention. Figure 3 This is a schematic diagram of the automatic sampling device for detecting the components of an injection solution, which is a specific embodiment of the present invention. Figure 4 This is a schematic diagram of the automatic sampling device for detecting the components of an injection solution, which is a specific embodiment of the present invention. Figure 5 This is a schematic diagram of the automatic sampling device for detecting the components of an injection solution, which is a specific embodiment of the present invention. Label Explanation: 1. Workbench; 2. Injection mechanism; 21. First fixing plate; 22. Syringe fixing end; 221. Syringe fixing head; 222. Connecting plate; 23. First slide; 231. Piston handle groove; 24. First lead screw; 25. First driving component; 26. Second fixing plate; 27. Second slide; 28. Second lead screw; 29. ​​Second driving component; 3. Rotating mechanism; 4. Syringe; 41. Needle barrel; 42. Piston handle; 5. Injection solution vial; 6. Cuvette. Detailed Implementation

[0016] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0017] This utility model relates to an automatic sampling device for detecting the components of injection solutions. It is suitable for quantitative sampling operations of medical pharmaceuticals, such as extracting solutions from injection vials and injecting them into cuvettes, achieving pollution-free and high-precision sample transfer.

[0018] Please refer to Figures 1 to 3 An automatic sampling device for detecting the components of an injection solution includes an injection solution vial 5, a workbench 1, an injection mechanism 2 and a rotation mechanism 3 disposed on the workbench 1. The injection vial 5 is positioned with its opening facing vertically downwards above the injection mechanism 2; The injection mechanism 2 is used to fix the syringe 4, which includes a syringe barrel and a piston handle; the injection mechanism 2 is used to drive the piston handle of the syringe 4 to pull out and push into the syringe barrel. The injection mechanism 2 is connected to the rotating mechanism 3; the rotating mechanism 3 drives the syringe 4 on the injection mechanism 2 to rotate, so that the axis of the needle of the syringe 4 coincides with the axis of the injection bottle 5.

[0019] The use of the above-mentioned automated sampling device for detecting the components of the injection solution: a. Initial position: The syringe barrel of syringe 4 faces upward, and the injection mechanism 2 controls the needle of syringe 4 to insert into the inverted medicine bottle.

[0020] b. Extraction operation: The injection mechanism 2 controls the piston handle of the syringe 4 to pull out and extract liquid in a quantitative manner; c. Rotational transfer: Rotating mechanism 3 rotates 180 degrees, so that syringe 4 is aligned downwards with cuvette 6.

[0021] d. Injection operation: The injection mechanism 2 controls the piston of the syringe 4 to push in, injecting the liquid into the cuvette 6.

[0022] e. Consumable replacement: Syringe 4 is a disposable consumable and should be discarded after each operation to avoid contamination.

[0023] The beneficial effects of this invention are as follows: In the automatic sampling device for detecting the components of an injection solution, the injection vial 5 is vertically inverted and positioned above the injection mechanism 2. The inverted position and rotation of the injection mechanism 2 and the rotation mechanism 3 facilitate sampling when the injection vial 5 is not full. The injection mechanism 2 and the rotation mechanism 3 precisely control the position and extraction volume, reducing errors. Furthermore, the entire process is completely contactless (manual handling of the syringe 4 and vial may result in contact contamination), avoiding contamination. The syringe 4 is disposable, ensuring aseptic operation. This automatic sampling device for detecting the components of an injection solution is automated, improving efficiency, and can be integrated into online detection systems (such as Raman detection modules), supporting industrial applications.

[0024] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the sampling mechanism 2 includes a first-stage lead screw slide. The syringe 4 includes a syringe barrel and a piston handle; The first-stage lead screw slide includes a first fixed plate 21, a syringe fixed end 22 disposed on the first fixed plate 21, a first slide 23, a first lead screw 24, and a first driving member 25; The first driving member 25 drives the first lead screw 24 to rotate, thereby causing the first slide table 23 to move on the first lead screw 24; The first slide 23 is provided with a piston handle groove 231 to accommodate the tail of the piston handle; The injection mechanism 2 is connected to the rotating mechanism 3 via the first fixed plate 21.

[0025] As described above, the injection mechanism 2 controls the pulling and pushing actions of the syringe 4 through the lead screw slide, making the sampling more objective and accurate.

[0026] Furthermore, in the above-mentioned automatic sampling device for detecting the components of the injection solution, the syringe fixing end 22 includes an upper plate and a lower plate, and a gap is provided between the upper plate and the lower plate to fix the tail end of the syringe.

[0027] As described above, the syringe fixing end 22 clamps the syringe through a gap, which facilitates the assembly and disassembly of the syringe.

[0028] Further, please refer to Figure 4 In the above-mentioned automatic sampling device for detecting the components of injection solution, the syringe fixing end 22 includes a syringe fixing head 221 and a connecting plate 222. One end of the syringe fixing head 221 is provided with a groove for fixing the tail end of the syringe, and the other end is inserted into the connecting plate 222.

[0029] As described above, the syringe fixing end 22 is provided with a syringe fixing head 221 and a connecting plate 222 for insertion. The syringe can be fixed to the syringe fixing head 221 first, and then the syringe fixing head 221 can be fixed to the connecting plate 222. The above arrangement facilitates the quick installation of the syringe.

[0030] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the surface of the groove is provided with a rubber layer.

[0031] As described above, the groove surface is provided with a rubber layer, which allows the syringe tail end to be inserted into the groove with an interference fit, thereby improving the stability of the syringe installation.

[0032] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the first driving component 25 is a servo motor with an encoder.

[0033] As can be seen from the above description, the configuration of the first driving component 25 makes the sliding stroke control of the first slide 23 more precise.

[0034] Further, please refer to Figure 5In the above-mentioned automatic sampling device for detecting the components of injection solutions, the sampling mechanism 2 includes a first-stage screw slide and a second-stage screw slide; The syringe 4 includes a syringe barrel and a piston handle; The first-stage lead screw slide includes a first fixed plate 21, a syringe fixed end 22 disposed on the first fixed plate 21, a first slide 23, a first lead screw 24, and a first driving member 25; The first driving member 25 drives the first lead screw 24 to rotate, thereby causing the first slide table 23 to move on the first lead screw 24; The first slide 23 is provided with a piston handle groove 231 that can accommodate the tail of the piston handle; The second-stage lead screw slide includes a second fixed plate 26, a second slide 27 disposed on the second fixed plate 26, a second lead screw 28, and a second driving member 29; The second driving member 29 drives the second lead screw 28 to rotate, thereby causing the second slide table 27 to move on the second lead screw 28; The first fixing plate 21 is fixedly connected to the second slide table 27; The injection mechanism 2 is connected to the rotating mechanism 3 via the second fixed plate 26.

[0035] As described above, if the position of the injection vial 5 is not suitable or the liquid is not full, the position of the syringe 4 is controlled by the second slide 27 to ensure the extraction accuracy.

[0036] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the second drive unit 29 is a servo motor with an encoder.

[0037] As can be seen from the above description, the configuration of the second drive component 29 makes the sliding stroke control of the second slide 27 more precise.

[0038] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, a cuvette 6 is provided on the workbench 1.

[0039] As described above, a cuvette 6 is provided on the workbench 1, which can conveniently receive the liquid from the syringe 4.

[0040] Furthermore, in the aforementioned automatic sampling device for detecting the components of the injection solution, the rotating mechanism 3 is an RTS9060 rotating indexing plate.

[0041] As can be seen from the above description, the above-mentioned indexing plate has high precision and is easy to operate, which improves the efficiency of the automatic sampling device.

[0042] Example 1 Please refer to Figures 1 to 5An automatic sampling device for detecting the components of an injection solution includes an injection solution vial 5, a workbench 1, an injection mechanism 2 and a rotation mechanism 3 disposed on the workbench 1. The mouth of the injection vial 5 is vertically downward above the injection mechanism 2; The injection mechanism 2 is used to fix the syringe 4, which includes a syringe barrel and a piston handle; the injection mechanism 2 is used to drive the piston handle of the syringe 4 to pull out and push into the syringe barrel. The injection mechanism 2 is connected to the rotating mechanism 3; the rotating mechanism 3 drives the syringe 4 on the injection mechanism 2 to rotate, so that the axis of the needle of the syringe 4 coincides with the axis of the injection bottle 5.

[0043] The injection mechanism 2 includes a first-stage screw slide and a second-stage screw slide; The syringe 4 includes a syringe barrel and a piston handle; The first-stage lead screw slide includes a first fixed plate 21, a syringe fixed end 22 disposed on the first fixed plate 21, a first slide 23, a first lead screw 24, and a first driving member 25; The first driving member 25 drives the first lead screw 24 to rotate, thereby causing the first slide table 23 to move on the first lead screw 24; The first slide 23 is provided with a piston handle groove 231 that can accommodate the tail of the piston handle; The second-stage lead screw slide includes a second fixed plate 26, a second slide 27 disposed on the second fixed plate 26, a second lead screw 28, and a second driving member 29; The second driving member 29 drives the second lead screw 28 to rotate, thereby causing the second slide table 27 to move on the second lead screw 28; The first fixing plate 21 is fixedly connected to the second slide table 27; The injection mechanism 2 is connected to the rotating mechanism 3 via the second fixed plate 26.

[0044] The worktable 1 is equipped with a cuvette 6. The rotating mechanism 3 is an RTS9060 rotating indexing plate.

[0045] The automatic sampling device for detecting the components of the injection solution in this embodiment is used as follows: a. Initial position: The syringe barrel of syringe 4 faces upward. After the second slide 27 of the second-stage lead screw slide of the injection mechanism 2 moves syringe 4 to the appropriate position, the first slide 23 of the first-stage lead screw slide drives the needle of syringe 4 to insert into the inverted medicine bottle.

[0046] b. Extraction operation: The first slide 23 of the injection mechanism 2 controls the piston handle of the syringe 4 to pull out and quantitatively extract liquid (considering that when the liquid is not full, the position control of the second slide 27 is used to ensure extraction accuracy). In addition, considering that the flexible medicine bottle will shrink when the medicine is directly drawn, resulting in a decrease in the liquid output, a certain amount of air can be reserved before the needle is inserted into the medicine bottle. After the needle is inserted into the medicine bottle, some air is injected into the medicine bottle first, and then the liquid is pulled out. In this way, the liquid will be more easily drawn into the syringe by the air pressure.

[0047] c. Rotation transfer: Rotation mechanism 3 rotates 180 degrees, so that the syringe faces downwards and is aligned with cuvette 6.

[0048] d. Injection operation: The first slide 23 pushes the piston to inject the liquid into the cuvette 6.

[0049] e. Consumable replacement: Syringe 4 is a disposable consumable and should be discarded after each operation to avoid contamination.

[0050] The main support and connecting parts of this device (such as the worktable, fixing plate, and syringe fixing end) are all 3D printed to ensure compact installation. Hardware control is implemented by a development board (Arduino UNO) and an expansion board (CNC shield), and the software uses a Python host computer program.

[0051] In summary, the automatic sampling device for detecting the components of injection solutions of this invention has the following beneficial effects: First, the medicine bottle is inverted, and the liquid gathers at the bottle opening. The second slide precisely adjusts the syringe needle depth to accommodate different liquid levels; the second slide also controls the syringe piston stroke, achieving quantitative extraction and overcoming the inaccuracies of manual operation.

[0052] Secondly, the syringe is easy to assemble and disassemble, and can be discarded as a consumable after each sampling. The rotating mechanism avoids manual contact, eliminating the risk of contamination at the source.

[0053] Finally, automated operation improves efficiency and can be integrated into online detection systems (such as Raman detection modules) to support industrial applications.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic sampling device for detecting the components of an injection solution, characterized in that, Includes injection vials, a worktable, and an injection and rotation mechanism mounted on the worktable; The mouth of the injection vial is vertically downward above the injection mechanism; The injection mechanism is used to fix the syringe, which includes a syringe barrel and a piston handle; the injection mechanism is also used to drive the piston handle of the syringe to pull out and push into the syringe barrel. The injection mechanism is connected to the rotating mechanism; the rotating mechanism drives the syringe on the injection mechanism to rotate, so that the axis of the syringe needle coincides with the axis of the injection vial.

2. The automatic sampling device for detecting the components of an injection solution according to claim 1, characterized in that, The injection mechanism includes a first-stage lead screw slide; the first-stage lead screw slide includes a first fixed plate, a syringe fixed end disposed on the first fixed plate, a first slide, a first lead screw, and a first driving member; The first driving component drives the first lead screw to rotate, thereby causing the first slide to move on the first lead screw; The first slide is provided with a piston handle groove to accommodate the tail of the piston handle; The injection mechanism is connected to the rotating mechanism via a first fixed plate.

3. The automatic sampling device for detecting the components of an injection solution according to claim 2, characterized in that, The syringe fixing end includes an upper plate and a lower plate, and a gap is provided between the upper plate and the lower plate to fix the tail end of the syringe.

4. The automatic sampling device for detecting the components of an injection solution according to claim 2, characterized in that, The syringe fixing end includes a syringe fixing head and a connecting plate. One end of the syringe fixing head is provided with a groove for fixing the tail end of the syringe, and the other end is inserted into the connecting plate.

5. The automatic sampling device for detecting the components of an injection solution according to claim 4, characterized in that, The groove surface is provided with a rubber layer.

6. The automatic sampling device for detecting the components of an injection solution according to claim 2, characterized in that, The first driving component is a servo motor with an encoder.

7. The automatic sampling device for detecting the components of an injection solution according to claim 1, characterized in that, The injection mechanism includes a first-stage screw slide and a second-stage screw slide; The first-stage lead screw slide includes a first fixed plate, a syringe fixed end disposed on the first fixed plate, a first slide, a first lead screw, and a first driving member; The first driving component drives the first lead screw to rotate, thereby causing the first slide to move on the first lead screw; The first slide is provided with a piston handle groove that can accommodate the tail of the piston handle; The second-stage lead screw slide includes a second fixed plate, a second slide mounted on the second fixed plate, a second lead screw, and a second driving member; The second driving element drives the second lead screw to rotate, thereby causing the second slide to move on the second lead screw; The first fixing plate is fixedly connected to the second slide. The injection mechanism is connected to the rotating mechanism via a second fixed plate.

8. The automatic sampling device for detecting the components of an injection solution according to claim 7, characterized in that, The second driving component is a servo motor with an encoder.

9. The automatic sampling device for detecting the components of an injection solution according to claim 1, characterized in that, The workbench surface is equipped with a cuvette.

10. The automatic sampling device for detecting the components of an injection solution according to claim 1, characterized in that, The rotating mechanism is an RTS9060 rotary indexing plate.

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