Sample extraction device for drug monitoring

Abstract

The utility model discloses a sample extraction device for medicine monitoring, which relates to the technical field of medicine sampling instruments and comprises an extraction needle in threaded connection with the bottom of an extraction main body. The supporting frame is arranged on the inner wall of the extraction needle head, the metal ball is arranged at the bottom of the supporting frame, when medicine needs to be extracted, the extraction body is inclined, the metal ball hung at the bottom of the supporting frame inclines towards one side, and the medicine is extracted into the extraction body through the extraction needle head; at the moment, the extraction main body is vertically taken out of the medicine bottle, and the metal ball suspended at the bottom of the supporting frame blocks the extraction needle head, so that the problem that the medicine is in contact with air due to the fact that the medicine is left in the needle tube, and the extraction needle head is blocked is further solved. The oxidation reaction of the medicine is caused, so that the follow-up medicine monitoring data is abnormal.

Description

Technical Field

[0001] The utility model relates to the technical field of drug sampling instruments, in particular to a sample extraction device for drug monitoring. Background Art

[0002] In the pharmaceutical manufacturing process, in order to ensure the safety, effectiveness, uniformity and stability of drugs, they need to undergo drug quality testing, drug ingredient testing, drug heavy metal testing, drug appearance testing, drug routine testing, drug safety testing and drug defect testing. The purpose is to prevent unqualified drugs from entering the market and ensure the safety of drugs. During the monitoring process, extractors are usually used to sample drugs, which can complete the sampling of most solid drugs.

[0003] For example, the Chinese patent with publication number CN218546210U discloses an efficient extractor for drug monitoring samples, including a sleeve, a push rod and a multifunctional sampling structure. The utility model sets a multifunctional sampling structure at the bottom of the sleeve, and pushes the push rod into the sleeve to open the sampling chamber for sampling. After the sampling is completed, the user does not need to transfer the sample in the sampling chamber to a ziplock bag for storage. The drug storage cartridge can be directly used as a carrier for the sample, eliminating the operation of transferring the sample, reducing the leakage of the drug, and the operation is simple and efficient. In addition, the used drug storage cartridge can be replaced after each sampling, effectively avoiding the situation where the sample previously remaining in the sampling chamber causes contamination to the drug.

[0004] The existing technology has the following problems:

[0005] During use of the existing sample extraction device for drug monitoring, drugs are easily left in the needle when the drugs are extracted. Some drugs have the property of oxidation. When the drugs remaining in the needle come into contact with oxygen to undergo an oxidation reaction, when it is necessary to monitor the drugs in the extraction device, the drugs remaining in the syringe will be injected into the monitoring device together with the unoxidized drugs, which may easily cause abnormal monitoring data during the subsequent drug monitoring process. Utility Model Content

[0006] The utility model provides a sample extraction device for drug monitoring to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A sample extraction device for drug monitoring comprises an extraction body, the bottom of which is threadedly connected to an extraction needle, one side of the outer wall of the extraction body is fixedly connected to a scale, the inner wall of the extraction body is provided with a liquid extraction mechanism, and the inner wall of the extraction needle is provided with a blocking mechanism.

[0009] A further improvement of the technical solution of the utility model is that the blocking mechanism comprises a support frame fixedly connected to the inner wall of the extraction needle, and a rope at the bottom of the support frame is connected to a metal ball.

[0010] A further improvement of the technical solution of the utility model is that the liquid extraction mechanism includes a telescopic rod fixedly connected to one side of the bottom of the inner wall of the extraction body, and a sliding block is fixedly connected to the top of the telescopic rod.

[0011] A further improvement of the technical solution of the utility model is that a support rod is fixedly connected to the center of the top of the sliding block, and a piston is fixedly connected to the bottom of the support rod.

[0012] A further improvement of the technical solution of the utility model is that a liquid extraction bin is fixedly connected to the center of the bottom of the inner wall of the extraction body, and the inner wall of the liquid extraction bin is slidably connected to one side of the piston.

[0013] A further improvement of the technical solution of the utility model is that one side of the sliding block is fixedly connected to a limit plate, one side of the limit plate is fixedly connected to a spring, one end of the spring is fixedly connected to a push block, and one side of the push block is slidably connected to the inner wall of the scale.

[0014] A further improvement of the technical solution of the utility model is that: sliding grooves are opened on both sides of the inner wall of the scale, the inner wall of the sliding groove is slidably connected to a limiting block, and one end of the limiting block is fixedly connected to the outer wall of the push block.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] The utility model provides a sample extraction device for drug monitoring, by arranging a support frame on the inner wall of an extraction needle, and arranging a metal ball at the bottom of the support frame, when it is necessary to extract the drug, the extraction body is tilted, so that the metal ball suspended at the bottom of the support frame is tilted to one side, so that the drug can be drawn into the extraction body through the extraction needle, and when the drug extraction is completed, the extraction body is gently shaken to make the metal ball suspended at the bottom of the support frame hit the inner wall of the extraction needle, so that the medicine liquid remaining in the extraction needle is discharged through vibration, and when the medicine liquid remaining in the extraction needle is discharged, the extraction body is vertically taken out of the medicine bottle at this time, so that the metal ball suspended at the bottom of the support frame blocks the extraction needle, further solving the problem of the drug remaining in the needle tube causing the drug to come into contact with the air, causing the drug to undergo an oxidation reaction, thereby causing abnormal subsequent drug monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2It is a side sectional view of the utility model;

[0019] Figure 3 It is a top cross-sectional view of the utility model;

[0020] Figure 4 For the utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 5 For the utility model Figure 3 Enlarged schematic diagram of point B in the middle.

[0022] In the figure: 1. extraction body; 2. extraction needle; 3. scale; 4. support frame; 5. metal ball; 6. telescopic rod; 7. sliding block; 8. support rod; 9. piston; 10. liquid extraction chamber; 11. limit plate; 12. spring; 13. push block; 14. slide groove; 15. limit block. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the embodiments:

[0024] Example 1

[0025] like Figure 1-5 As shown, the utility model provides a sample extraction device for drug monitoring, including an extraction body 1, an extraction needle 2 is threadedly connected to the bottom of the extraction body 1, a scale 3 is fixedly connected to one side of the outer wall of the extraction body 1, a liquid extraction mechanism is arranged on the inner wall of the extraction body 1, and a blocking mechanism is arranged on the inner wall of the extraction needle 2.

[0026] In this embodiment, the extraction needle 2 is fixed at the bottom of the extraction body 1, the extraction needle 2 is inserted into the medicine bottle, and the extraction mechanism arranged on the inner wall of the extraction body 1 is used to extract the medicine in the medicine bottle into the extraction chamber 10. A scale 3 is arranged on one side of the outer wall of the extraction body 1. At this time, the push block 13 is pushed to align one side of the push block 13 with the scale annotated on the inner wall of the scale 3, so as to accurately control the amount of medicine extracted by the extraction mechanism. When the medicine is extracted, the extraction body 1 is gently shaken to make the metal ball 5 arranged on the inner wall of the extraction needle 2 vibrate and discharge the remaining medicine in the extraction needle 2. At this time, the extraction body 1 is picked up, and the sealing mechanism arranged on the inner wall of the extraction needle 2 is used to seal the extraction needle 2 to avoid oxidation reaction after some medicines come into contact with oxygen, thereby avoiding abnormalities in subsequent monitoring data.

[0027] Example 2

[0028] like Figure 1-5 As shown, based on Example 1, the utility model provides a technical solution: preferably, the blocking mechanism includes a support frame 4 fixedly connected to the inner wall of the extraction needle 2, and the bottom rope of the support frame 4 is connected to a metal ball 5.

[0029] In this embodiment, a support frame 4 is provided on the inner wall of the extraction needle 2, and a metal ball 5 is provided at the bottom of the support frame 4. When it is necessary to extract the medicine, the extraction body 1 is tilted so that the metal ball 5 hanging at the bottom of the support frame 4 is tilted to one side, so that the medicine can be drawn into the extraction body 1 through the extraction needle 2. When the medicine is extracted, the extraction body 1 is gently shaken so that the metal ball 5 hanging at the bottom of the support frame 4 hits the inner wall of the extraction needle 2, so that the medicine liquid remaining in the extraction needle 2 is discharged through vibration. After the remaining medicine liquid in the extraction needle 2 is discharged, the extraction body 1 is vertically taken out of the medicine bottle, so that the metal ball 5 hanging at the bottom of the support frame 4 blocks the extraction needle 2, which further solves the problem of some medicines producing an oxidation reaction after contacting a small amount of air, causing abnormal subsequent medicine monitoring data.

[0030] Example 3

[0031] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the liquid extraction mechanism includes a telescopic rod 6 fixedly connected to one side of the bottom of the inner wall of the extraction main body 1, a sliding block 7 fixedly connected to the top of the telescopic rod 6, a support rod 8 fixedly connected to the center of the top of the sliding block 7, a piston 9 fixedly connected to the bottom of the support rod 8, a liquid extraction bin 10 fixedly connected to the center of the bottom of the inner wall of the extraction main body 1, the inner wall of the liquid extraction bin 10 is slidably connected to one side of the piston 9, one side of the sliding block 7 is fixedly connected to a limiting plate 11, one side of the limiting plate 11 is fixedly connected to a spring 12, one end of the spring 12 is fixedly connected to a push block 13, and one side of the push block 13 is slidably connected to the inner wall of the scale 3.

[0032] In this embodiment, a telescopic rod 6 is arranged on one side of the bottom of the inner wall of the extraction body 1, a sliding block 7 is arranged on the top of the telescopic rod 6, and a limiting plate 11 is arranged on one side of the sliding block 7, and a spring 12 is arranged on one side of the limiting plate 11, and a push block 13 is arranged at one end of the spring 12. When extracting medicine, the push block 13 is pressed to move the push block 13 on the inner wall of the scale 3, and the push block 13 is used to drive the support rod 8 arranged at the top center of the sliding block 7 to move upward, so that the support rod 8 drives the piston 9 arranged at the bottom, so that the medicine is drawn into the liquid extraction chamber 10 arranged at the bottom center of the inner wall of the extraction body 1 through the extraction needle 2.

[0033] Example 4

[0034] like Figure 1-5 As shown, based on Example 1, the utility model provides a technical solution: preferably, slide grooves 14 are opened on both sides of the inner wall of the scale 3, the inner wall of the slide groove 14 is slidably connected to a limit block 15, and one end of the limit block 15 is fixedly connected to the outer wall of the push block 13.

[0035] In this embodiment, a limit block 15 is provided at one end of the push block 13. When it is necessary to extract the medicine, the push block 13 is pressed to disengage the limit block 15 from the slide grooves 14 provided on both sides of the inner wall of the scale 3, thereby disengaging the push block 13 from the limit position. When the medicine extraction is completed, the push block 13 is released, and the limit block 15 is pushed back into the slide groove 14 by the spring 12, thereby limiting the sliding block 7.

[0036] The working principle of the sample extraction device for drug monitoring will be described in detail below.

[0037] like Figure 1-5 As shown, a support frame 4 is provided on the inner wall of the extraction needle 2, and a metal ball 5 is provided at the bottom of the support frame 4. When it is necessary to extract the medicine, the extraction body 1 is tilted so that the metal ball 5 suspended at the bottom of the support frame 4 is tilted to one side, so that the medicine can be drawn into the extraction body 1 through the extraction needle 2. A scale 3 is provided on one side of the outer wall of the extraction body 1, and the push block 13 is pushed at this time so that one side of the push block 13 is aligned with the scale annotated on one side of the inner wall of the scale 3, so as to achieve accurate control of the amount of medicine extracted by the extraction mechanism, a telescopic rod 6 is provided on one side of the bottom of the inner wall of the extraction body 1, a sliding block 7 is provided on the top of the telescopic rod 6, and a limit plate 11 is provided on one side of the sliding block 7, a spring 12 is provided on one side of the limit plate 11, and a push block 13 is provided at one end of the spring 12, and a limit block 15 is provided at one end of the push block 13, when it is necessary to extract the medicine, the push block 13 is pressed to make the limit block 15 disengage from the slide grooves 14 opened on both sides of the inner wall of the scale 3 , so that the push block 13 is disengaged from the limit, and the push block 13 is used to drive the support rod 8 set at the top center of the sliding block 7 to move upward, so that the support rod 8 drives the piston 9 set at the bottom, so that the medicine is drawn into the extraction chamber 10 set at the bottom center of the inner wall of the extraction main body 1 through the extraction needle 2. When the medicine is extracted, the push block 13 is released, and the spring 12 is used to push the limit block 15 back into the slide groove 14, so as to limit the sliding block 7, and the extraction main body 1 is gently shaken to make the metal ball 5 suspended at the bottom of the support frame 4 hit the inner wall of the extraction needle 2, so that the medicine remaining in the extraction needle 2 is discharged through vibration. When the remaining medicine in the extraction needle 2 is discharged, the extraction main body 1 is vertically taken out of the medicine bottle at this time, so that the metal ball 5 suspended at the bottom of the support frame 4 blocks the extraction needle 2, which further solves the problem that the medicine is in contact with the air due to the medicine remaining in the needle tube, causing the medicine to undergo oxidation reaction, thereby causing abnormal subsequent medicine monitoring data.

[0038] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A sample extraction device for drug monitoring, comprising an extraction body (1), characterized in that: The bottom of the extraction body (1) is threadedly connected to an extraction needle (2), one side of the outer wall of the extraction body (1) is fixedly connected to a scale (3), the inner wall of the extraction body (1) is provided with a liquid extraction mechanism, and the inner wall of the extraction needle (2) is provided with a blocking mechanism.

2. A sample extraction device for drug monitoring according to claim 1, characterized in that: The blocking mechanism comprises a support frame (4) fixedly connected to the inner wall of the extraction needle (2), and a metal ball (5) is connected to the bottom rope of the support frame (4).

3. A sample extraction device for drug monitoring according to claim 1, characterized in that: The liquid extraction mechanism comprises a telescopic rod (6) fixedly connected to one side of the bottom of the inner wall of the extraction body (1), and a sliding block (7) fixedly connected to the top of the telescopic rod (6).

4. A sample extraction device for drug monitoring according to claim 3, characterized in that: A support rod (8) is fixedly connected to the center of the top of the sliding block (7), and a piston (9) is fixedly connected to the bottom of the support rod (8).

5. A sample extraction device for drug monitoring according to claim 1, characterized in that: A liquid extraction chamber (10) is fixedly connected to the center of the bottom of the inner wall of the extraction body (1), and the inner wall of the liquid extraction chamber (10) is slidably connected to one side of the piston (9).

6. A sample extraction device for drug monitoring according to claim 4, characterized in that: One side of the sliding block (7) is fixedly connected to a limit plate (11), one side of the limit plate (11) is fixedly connected to a spring (12), one end of the spring (12) is fixedly connected to a push block (13), and one side of the push block (13) is slidably connected to the inner wall of the scale (3).

7. A sample extraction device for drug monitoring according to claim 1, characterized in that: Slide grooves (14) are provided on both sides of the inner wall of the scale (3); the inner wall of the slide groove (14) is slidably connected to a limit block (15); one end of the limit block (15) is fixedly connected to the outer wall of the push block (13).

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