Biological medicine sampling device

Abstract

The utility model relates to the technical field of biological medicine, and discloses a biological medicine sampling device which comprises a biological medicine infusion tube, a liquid guide tube, a piston and a liquid discharge tube, a transparent sampling cylinder is vertically arranged above the biological medicine infusion tube, the liquid guide tube is fixedly mounted in the middle of the bottom side of the sampling cylinder, and the piston is fixedly mounted in the middle of the bottom side of the sampling cylinder. The bottom end of the liquid guide pipe penetrates through the inner wall of the top end of the biological agent infusion pipe and communicates with the middle end of the interior of the biological agent infusion pipe, and a first electromagnetic valve is arranged in the liquid guide pipe. The first electromagnetic valve is controlled to be opened, the piston can be pulled to move upwards in the sampling barrel through the connecting rod, and the biological agent in the biological agent infusion tube can be pumped into the sampling barrel through the liquid guide tube, so that quantitative sampling of the biological agent can be controlled, the second electromagnetic valve is opened, and the piston is pushed to move downwards through the connecting rod; and the biological agent in the sampling cylinder can be discharged through the liquid discharge pipe, so that workers can conveniently collect the biological agent.

Description

Technical Field

[0001] The utility model relates to the technical field of biomedicine, in particular to a biomedicine sampling device. Background Art

[0002] In the process of biopharmaceutical production, sampling is required at each stage to monitor the quality of the intermediate product. In the prior art, a valve is generally set on the outer surface of the feed pipe, and the liquid medicine in the feed pipe is sampled through the valve. However, during the sampling process of biopharmaceutical production, only a small dose of sample is usually taken. The valve will control a small gap to allow the liquid medicine sample close to the inner wall of the feed pipe to flow out for testing, and the liquid medicine flowing in the delivery pipe cannot be sampled uniformly, thereby reducing the accuracy of the test results after biopharmaceutical sampling.

[0003] After searching, the publication number is CN220304918U, which discloses a biomedical sampling device. When in use, hold the handle and rotate it, so that when the threaded rod rotates, the threaded sleeve drives the fixed tube to move downward on its surface, so that the mounting frame fixedly connected to the lower end face of the fixed tube drives the sampling tube to move downward synchronously, and the lower port of the sampling tube can be inserted into the sleeve at the corresponding position. At the same time, the right port of the sampling tube is at the center position of the input tube, so that the medicine flowing at the center position of the input tube will flow into the sleeve through the sampling tube. Under the connection action of the valve device and the connecting tube, the medicine flowing at the center position of the input tube will flow into the liquid collecting bottle for collection and sampling.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art that have not been solved. In the above case, during use, the input tube and the output tube are connected to the device body, while components such as the threaded rod, the limit block, the threaded sleeve and the fixed cylinder are placed in the device body. During long-term use, the components are easily worn and contaminated with biological agents, and it is also inconvenient to control the extraction amount of biological agents.

[0005] Therefore, we propose a biomedical sampling device that can solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a biomedical sampling device to solve the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biomedical sampling device, comprising a biological agent infusion tube, a transparent sampling cylinder is vertically arranged above the biological agent infusion tube, and also comprising a liquid guide tube, a piston and a drainage tube. The liquid guide tube is fixedly installed in the middle of the bottom side of the sampling tube, the bottom end of the liquid guide tube penetrates the top inner wall of the biological agent infusion tube and is connected with the middle end of the biological agent infusion tube, a first solenoid valve is arranged inside the liquid guide tube, the piston is movably connected to the inside of the sampling tube, a connecting rod is vertically fixedly installed in the middle of the upper surface of the piston, an adjusting block is fixedly installed on the top of the connecting rod, the drainage tube is horizontally fixedly installed on one side of the liquid guide tube, and a second solenoid valve is arranged inside the drainage tube.

[0008] As an optional solution of the technical solution of the present application, the first solenoid valve is placed on the bottom side of the liquid discharge pipe, and the liquid inlet end of the liquid discharge pipe is connected to the liquid guide pipe.

[0009] As an optional solution of the technical solution of the present application, a cross-shaped connecting groove is formed through the inner wall of the top end of the sampling tube, and the connecting rod is slidably connected to the connecting groove.

[0010] As an optional solution of the technical solution of the present application, scale lines are provided on the outside of the sampling cylinder, and the connecting rod matches the size of the sampling cylinder.

[0011] As an optional solution to the technical solution of the present application, a mounting frame is fixedly installed above the biological agent infusion tube, the bottom end of the sampling cylinder passes through the middle of the upper surface of the mounting frame and is fixedly connected to the mounting frame, and the drainage pipe horizontally passes through one side of the mounting frame and is fixedly connected to the mounting frame.

[0012] As an optional solution of the technical solution of the present application, the top end of the liquid guiding tube is connected to the bottom end of the inside of the sampling cylinder, and the sampling cylinder is connected to the biological agent infusion tube through the liquid guiding tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the first solenoid valve is controlled to open, and the piston can be pulled upward in the sampling tube through the connecting rod, and the biological agent in the biological agent infusion tube can be drawn into the sampling tube through the liquid guide tube, thereby controlling the quantitative sampling of the biological agent; the second solenoid valve is opened, and the piston is pushed downward through the connecting rod, and the biological agent in the sampling tube can be discharged through the discharge pipe, which is convenient for the staff to collect; the structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1This is a schematic diagram of the structure of a biomedical sampling device of the utility model;

[0016] Figure 2 This is a front view of a biomedical sampling device of the utility model;

[0017] Figure 3 The utility model is a schematic diagram of the interior of a sampling tube of a biomedical sampling device.

[0018] In the figure: 1. biological agent infusion tube; 11. sampling cylinder; 12. catheter; 13. first solenoid valve; 14. piston; 15. connecting rod; 16. adjustment block; 17. connecting groove; 2. drainage pipe; 21. second solenoid valve; 22. mounting bracket; 23. scale line. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 3 The utility model provides a technical solution: a biomedical sampling device, comprising a biopharmaceutical infusion tube 1, a transparent sampling cylinder 11 is vertically arranged above the biopharmaceutical infusion tube 1, and also comprises a liquid guide tube 12, a piston 14 and a liquid discharge tube 2, the liquid guide tube 12 is fixedly installed in the middle of the bottom side of the sampling cylinder 11, the top of the liquid guide tube 12 is connected with the bottom end of the sampling cylinder 11, the bottom end of the liquid guide tube 12 penetrates the top inner wall of the biopharmaceutical infusion tube 1 and is connected with the middle end of the biopharmaceutical infusion tube 1, the sampling cylinder 11 is connected with the biopharmaceutical infusion tube 1 through the liquid guide tube 12, a first solenoid valve 13 is arranged inside the liquid guide tube 12, the piston 14 is movably connected inside the sampling cylinder 11, a connecting rod 15 is vertically fixedly installed in the middle of the upper surface of the piston 14, an adjusting block 16 is fixedly installed on the top of the connecting rod 15, and a scale line 23 is arranged on the outside of the sampling cylinder 11.

[0020] In this technical solution, the first solenoid valve 13 is opened by the corresponding controller, and the piston 14 at the bottom end of the connecting rod 15 can be pulled upward in the sampling cylinder 11 through the adjustment block 16. The biological agent in the biological agent infusion tube 1 can be drawn into the sampling cylinder 11 through the catheter 12. The outer side of the sampling cylinder 11 is provided with a scale line 23, which can control the quantitative sampling of the biological agent.

[0021] In this embodiment, the drain pipe 2 is horizontally fixedly installed on one side of the liquid guiding pipe 12, and the liquid inlet end of the drain pipe 2 is connected to the liquid guiding pipe 12. A second solenoid valve 21 is arranged inside the drain pipe 2, and the first solenoid valve 13 is placed on the bottom side of the drain pipe 2.

[0022] In this technical solution, when the amount of biological agent extracted from the sampling tube 11 reaches the set value, the first solenoid valve 13 is controlled to close through the corresponding controller, and then the second solenoid valve 21 is controlled to open. The piston 14 at the bottom end of the connecting rod 15 can be pushed downward by the adjustment block 16, and the discharge pipe 2 connected to the liquid guide tube 12 can slowly discharge the biological agent in the sampling tube 11, making it convenient for the staff to collect it.

[0023] In this embodiment, a mounting frame 22 is fixedly installed above the biological agent infusion tube 1, the bottom end of the sampling tube 11 passes through the middle of the upper surface of the mounting frame 22 and is fixedly connected to the mounting frame 22, the discharge tube 2 horizontally passes through one side of the mounting frame 22 and is fixedly connected to the mounting frame 22, and a cross-shaped connecting groove 17 is opened through the inner wall of the top end of the sampling tube 11, and the connecting rod 15 is slidably connected to the connecting groove 17, and the connecting rod 15 matches the size of the sampling tube 11.

[0024] In this technical solution, the mounting bracket 22 above the biopharmaceutical infusion tube 1 can improve the stability of the sampling tube 11 during use, and the sliding connection between the connecting rod 15 and the cross-shaped connecting groove 17 can improve the movement stability of the piston 14 in the sampling tube 11.

[0025] When a biomedical sampling device is in use, the first solenoid valve 13 is controlled to open by the corresponding controller, and the piston 14 at the bottom end of the connecting rod 15 can be pulled upward in the sampling tube 11 through the adjustment block 16, and the biological agent in the biological agent infusion tube 1 can be drawn into the sampling tube 11 through the liquid guide tube 12. A scale line 23 is provided on the outside of the sampling tube 11 to control the quantitative sampling of the biological agent. When the amount of biological agent extracted in the sampling tube 11 reaches the set value, the first solenoid valve 13 is controlled to close by the corresponding controller, and then the second solenoid valve 21 is controlled to open. The piston 14 at the bottom end of the connecting rod 15 can be pushed downward by the adjustment block 16, and the biological agent in the sampling tube 11 can be slowly discharged through the discharge pipe 2 connected to the liquid guide tube 12, which is convenient for the staff to collect. The structure is simple and easy to operate.

Claims

1. A biomedical sampling device, comprising a biopharmaceutical infusion tube (1), wherein a transparent sampling cylinder (11) is vertically arranged above the biopharmaceutical infusion tube (1), characterized in that: It also includes a liquid guide tube (12), a piston (14) and a liquid discharge tube (2), wherein the liquid guide tube (12) is fixedly mounted in the middle of the bottom side of the sampling tube (11), the bottom end of the liquid guide tube (12) penetrates the top inner wall of the biological agent infusion tube (1) and is connected to the middle end of the biological agent infusion tube (1), a first electromagnetic valve (13) is arranged inside the liquid guide tube (12), the piston (14) is movably connected inside the sampling tube (11), a connecting rod (15) is vertically fixedly mounted in the middle of the upper surface of the piston (14), an adjusting block (16) is fixedly mounted at the top of the connecting rod (15), the liquid discharge tube (2) is horizontally fixedly mounted on one side of the liquid guide tube (12), and a second electromagnetic valve (21) is arranged inside the liquid discharge tube (2).

2. A biomedical sampling device according to claim 1, characterized in that: The first solenoid valve (13) is placed on the bottom side of the liquid discharge pipe (2), and the liquid inlet end of the liquid discharge pipe (2) is connected to the liquid guide pipe (12).

3. A biomedical sampling device according to claim 1, characterized in that: A cross-shaped connecting groove (17) is formed through the inner wall of the top end of the sampling tube (11), and the connecting rod (15) is slidably connected to the connecting groove (17).

4. A biomedical sampling device according to claim 1, characterized in that: The outer side of the sampling cylinder (11) is provided with scale lines (23), and the connecting rod (15) matches the size of the sampling cylinder (11).

5. The biomedical sampling device according to claim 1, characterized in that: A mounting frame (22) is fixedly mounted above the biopharmaceutical infusion tube (1), the bottom end of the sampling tube (11) passes through the middle of the upper surface of the mounting frame (22) and is fixedly connected to the mounting frame (22), and the drainage tube (2) horizontally passes through one side of the mounting frame (22) and is fixedly connected to the mounting frame (22).

6. A biomedical sampling device according to claim 1, characterized in that: The top end of the liquid guiding tube (12) is connected to the bottom end of the sampling cylinder (11), and the sampling cylinder (11) is connected to the biological agent infusion tube (1) via the liquid guiding tube (12).

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