A sampling device for detecting diclofenac sodium sustained-release suppositories
By designing a sampling device for the detection of diclofenac sodium sustained-release suppositories, the problem of sample inconsistency caused by manual sampling was solved, enabling precise control and visual observation, and improving the accuracy of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN ZHENGTONG PHARMA CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-07
AI Technical Summary
The existing sampling method for diclofenac sodium sustained-release suppositories suffers from inconsistent sample quality due to manual operation, resulting in large dispersion of test results that cannot accurately reflect product quality.
Design a sampling device that includes a sampling cylinder, a sampling needle, a piston, a pull rod, a handle, a support plate, a clamping mechanism, and a graduated groove. The device achieves sampling at the same depth by controlling the movement of the clamping plate through rotating the rotating sleeve, and the dosage is observed through the graduated groove.
It enables precise control of sampling at the same depth and visual observation of sample volume, improving the consistency of sampling and the reliability of test results.
Smart Images

Figure CN224471326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diclofenac sodium sustained-release suppository detection, specifically a sampling device for detecting diclofenac sodium sustained-release suppositories. Background Technology
[0002] In the pharmaceutical manufacturing industry, diclofenac sodium sustained-release suppositories are important anti-inflammatory and analgesic drugs. Their quality testing is related to medication safety and efficacy. In the quality control process, sampling is the key starting point of the testing process, which directly affects the accuracy and reliability of the test results.
[0003] However, most common sampling methods for diclofenac sodium sustained-release suppositories on the market involve manual sampling using a handheld sampling tool to directly contact the suppository. During manual operation, factors such as individual differences in operators and their skill level make it difficult to accurately control the sampling location, depth, and sample quantity for each sampling. This results in a lack of consistency in samples obtained from different batches and by different operators, leading to large dispersion in test results that cannot accurately reflect the product quality. Therefore, it is necessary to design a sampling device for testing diclofenac sodium sustained-release suppositories to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a sampling device for detecting diclofenac sodium sustained-release suppositories, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for detecting diclofenac sodium sustained-release suppositories, comprising a sampling tube, a sampling needle connected to the bottom of the sampling tube, a piston slidably connected inside the sampling tube, a pull rod fixedly installed on the top of the piston, and a handle fixedly installed on the top of the pull rod;
[0006] The sampling tube is slidably connected to a support plate. The top of the support plate has slots on both sides. A linkage groove is provided on one side of the inner cavity of the slot. A clamping mechanism is provided inside the linkage groove.
[0007] Preferably, the clamping mechanism includes a square rod slidably connected inside the linkage groove, one end of the square rod is fixedly mounted with a clamping plate, and one side of the clamping plate is in close contact with the surface of the sampling cylinder.
[0008] Preferably, a spring is welded to the other end of the square rod, with one end of the spring welded to one side of the inner cavity of the linkage groove. A slide rod is fixedly connected to one end of the square rod, with one end of the slide rod penetrating the support plate and extending to the outside of the support plate. A traction plate is fixedly installed at one end of the slide rod.
[0009] Preferably, the top of the support plate is rotatably connected to a rotating sleeve via a bearing component.
[0010] Preferably, a stop bar is fixedly installed on both sides of the rotating sleeve.
[0011] Preferably, the surface of the sampling tube is provided with graduated grooves, and a plurality of graduated grooves are provided.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This sampling device for detecting diclofenac sodium sustained-release suppositories involves rotating a rotating sleeve to move two traction plates to the sides. The movement of the traction plates causes the square rod and clamping plate to move. After the clamping plate moves to a position where it no longer contacts the sampling cylinder, the support plate can slide up and down on the surface of the sampling cylinder. After sliding to a suitable position, rotating the rotating sleeve causes the abutment rod to no longer contact the traction plate. At this point, the clamping plate can reset and clamp the surface of the sampling cylinder. When the sampling needle at the bottom of the sampling cylinder is inserted into the suppository bottle, it can achieve the effect of sampling at the same depth. At the same time, it can also achieve the effect of adjusting the height of the sampling needle extending out of the bottle.
[0014] 2. The sampling device for detecting diclofenac sodium sustained-release suppositories, by setting a graduated groove, increases the frictional resistance between the clamping plate and the sampling cylinder after the clamping plate clamps the sampling cylinder surface, thereby improving the stability of the clamping plate holding the sampling cylinder. Furthermore, by setting a graduated groove, the operator can observe the effect of the suppository dosage through the graduated groove. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the sampling cylinder and support plate structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the linkage groove, spring, and slide bar structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the rotating sleeve and the stop rod structure of this utility model.
[0019] In the diagram: 1. Sampling cylinder; 2. Support plate; 3. Groove; 4. Linkage groove; 5. Square rod; 6. Clamping plate; 7. Spring; 8. Slide rod; 9. Traction plate; 10. Scale groove; 11. Sampling needle; 12. Piston; 13. Pull rod; 14. Handle; 15. Rotating sleeve; 16. Support rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1
[0022] Please refer to Figure 1-4 As shown, this utility model provides a sampling device for detecting diclofenac sodium sustained-release suppositories, including a sampling cylinder 1, a sampling needle 11 connected to the bottom of the sampling cylinder 1, a piston 12 slidably connected inside the sampling cylinder 1, a pull rod 13 fixedly installed on the top of the piston 12, and a handle 14 fixedly installed on the top of the pull rod 13.
[0023] Specifically, a support plate 2 is slidably connected to the surface of the sampling cylinder 1. Grooves 3 are formed on both sides of the top of the support plate 2. A linkage groove 4 is formed on one side of the inner cavity of the groove 3. A clamping mechanism is installed inside the linkage groove 4. The clamping mechanism includes a square rod 5 slidably connected inside the linkage groove 4. A clamping plate 6 is fixedly installed at one end of the square rod 5. One side of the clamping plate 6 is in close contact with the surface of the sampling cylinder 1. The side of the clamping plate 6 in close contact with the sampling cylinder 1 is made of rubber. A spring 7 is welded to the other end of the square rod 5. One end of the spring 7 is welded to one side of the inner cavity of the linkage groove 4. A sliding rod 8 is fixedly connected to one end of the square rod 5. One end of the sliding rod 8 passes through the support plate 2 and extends to the outside of the support plate 2. A traction plate 9 is fixedly installed at one end of the sliding rod 8. A rotating sleeve 15 is rotatably connected to the top of the support plate 2 via bearing components. Both sides of the rotating sleeve 15 are fixed... A stop rod 16 is installed. By setting a clamping mechanism and rotating the rotating sleeve 15, the rotating sleeve 15 drives the stop rods 16 on both sides to rotate. The rotation of the stop rod 16 can contact the traction plate 9, causing the two traction plates 9 to move to the sides respectively. The movement of the traction plate 9 drives the slide rod 8 to move. The movement of the slide rod 8 drives the square rod 5 and the clamping plate 6 to move. After the clamping plate 6 moves to no longer contact the sampling cylinder 1, the support plate 2 can slide up and down on the surface of the sampling cylinder 1. After sliding to a suitable position, by rotating the rotating sleeve 15, the stop rod 16 no longer contacts the traction plate 9. At this time, the clamping plate 6 can be reset and clamped on the surface of the sampling cylinder 1 by the elastic force of the spring 7. At this time, the sampling needle 11 at the bottom of the sampling cylinder 1 can be inserted into the suppository bottle to achieve the effect of sampling at the same depth. At the same time, the height of the sampling needle 11 extending out of the bottle can be adjusted.
[0024] The sampling cylinder 1 has a graduated groove 10 on its surface, and there are several graduated grooves 10. By setting the graduated grooves 10, the frictional resistance between the clamping plate 6 and the sampling cylinder 1 can be increased after the clamping plate 6 clamps the surface of the sampling cylinder 1, thereby improving the stability of the clamping plate 6 in holding the sampling cylinder 1. Furthermore, by setting the graduated grooves 10, the operator can observe the effect of the dosage of the suppository extracted through the graduated grooves 10.
[0025] Working Principle: This utility model is a sampling device for detecting diclofenac sodium sustained-release suppositories. By rotating the rotating sleeve 15, the rotating sleeve 15 drives the two abutment rods 16 on both sides to rotate. The rotation of the abutment rods 16 can cause the two traction plates 9 to move to both sides through contact with the traction plates 9. The movement of the traction plates 9 drives the sliding rod 8 to move, and the movement of the sliding rod 8 drives the square rod 5 and the clamping plate 6 to move. After the clamping plate 6 moves to the point where it is no longer in contact with the sampling cylinder 1, the support plate 2 can slide up and down on the surface of the sampling cylinder 1. After sliding to the appropriate position, by rotating the rotating sleeve 15, the abutment rod 16 is no longer in contact with the traction plate 9. At this time, the clamping plate 2 can move up and down. Plate 6 can be reset and clamped to the surface of sampling cylinder 1 by the elastic force of spring 7. At this time, after the sampling needle 11 at the bottom of sampling cylinder 1 is inserted into the suppository bottle, the sampling effect at the same depth can be achieved. At the same time, the height of the sampling needle 11 extending out of the bottle can be adjusted. Furthermore, by setting the scale groove 10, the frictional resistance between the clamping plate 6 and the sampling cylinder 1 can be increased after the clamping plate 6 clamps the surface of sampling cylinder 1, thereby improving the stability of the clamping plate 6 in clamping the sampling cylinder 1. Also, by setting the scale groove 10, the operator can observe the effect of the dosage of suppository extracted through the scale groove 10.
[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A sampling device for detecting diclofenac sodium sustained-release suppositories, comprising a sampling tube (1), characterized in that: The bottom of the sampling tube (1) is connected to a sampling needle (11), and a piston (12) is slidably connected inside the sampling tube (1). A pull rod (13) is fixedly installed on the top of the piston (12), and a handle (14) is fixedly installed on the top of the pull rod (13). The sampling tube (1) is slidably connected to a support plate (2). The support plate (2) has slots (3) on both sides of its top. A linkage groove (4) is provided on one side of the inner cavity of the slot (3). A clamping mechanism is provided inside the linkage groove (4).
2. The sampling device for detecting diclofenac sodium sustained-release suppositories according to claim 1, characterized in that: The clamping mechanism includes a square rod (5) that is slidably connected inside the linkage groove (4). One end of the square rod (5) is fixedly installed with a clamping plate (6), and one side of the clamping plate (6) is in close contact with the surface of the sampling cylinder (1).
3. The sampling device for detecting diclofenac sodium sustained-release suppositories according to claim 2, characterized in that: The other end of the square rod (5) is welded with a spring (7), one end of the spring (7) is welded to one side of the inner cavity of the linkage groove (4), one end of the square rod (5) is fixedly connected with a slide rod (8), one end of the slide rod (8) passes through the support plate (2) and extends to the outside of the support plate (2), and one end of the slide rod (8) is fixedly installed with a traction plate (9).
4. The sampling device for detecting diclofenac sodium sustained-release suppositories according to claim 1, characterized in that: The top of the support plate (2) is rotatably connected to a rotating sleeve (15) via a bearing component.
5. The sampling device for detecting diclofenac sodium sustained-release suppositories according to claim 4, characterized in that: Both sides of the rotating sleeve (15) are fixedly installed with abutment rods (16).
6. The sampling device for detecting diclofenac sodium sustained-release suppositories according to claim 1, characterized in that: The sampling tube (1) has a scale groove (10) on its surface, and there are several scale grooves (10).