A plastic medical container inspection apparatus

Abstract

The application relates to the field of container detection, in particular to a plastic medical container detection device. The plastic medical container detection device is characterized in that an upper cover and a lower cover form a closed space, a lamp body irradiates light on the medicine in the plastic medical container, a light sensor on the mounting rod is immersed in the medicine to detect the light penetrating through the plastic medical container, a first heater and a second heater are arranged to heat the plastic medical container and the medicine in the plastic medical container to a specified temperature, the light detection work of the plastic medical container is carried out at different temperatures and at multiple angles, and whether the temperature change has a great influence on the light shielding performance of the plastic medical container is observed. The technical problems that the existing light shielding performance detection device cannot simultaneously detect the plastic medical container at multiple angles and cannot simulate the detection work in combination with the environmental change are solved.

Description

Technical Field

[0001] This invention relates to the field of container testing, and more particularly to a testing device for plastic pharmaceutical containers. Background Technology

[0002] In the modern pharmaceutical industry, the necessity of light-shielding properties in some plastic pharmaceutical containers stems primarily from the chemical stability and regulatory compliance requirements of drugs. Many active pharmaceutical ingredients are extremely sensitive to light, especially ultraviolet radiation, which can induce photo-oxidative decomposition reactions, leading to degradation of active ingredients, decreased efficacy, or the production of toxic byproducts, thus seriously endangering patient safety. Therefore, for photosensitive drugs, highly light-shielding packaging containers, such as brown plastics or polymers containing ultraviolet absorbers, must be used to block light intrusion and ensure the quality stability of the drug during storage, transportation, and use. Testing the light-shielding performance of plastic pharmaceutical containers is therefore essential. The regulatory requirements aim to verify whether packaging materials truly possess the claimed protective functions. Pharmaceutical packaging must pass spectral transmittance or light transmittance tests. Through testing, the container's ability to block light can be quantified, ensuring that its light-blocking effect meets the standards, thereby preventing drug deterioration or ineffectiveness due to packaging failure, and ultimately ensuring patient medication safety. However, existing light-blocking performance testing equipment can only test the light-blocking performance of plastic pharmaceutical containers at specific light irradiation angles, making it impossible to test plastic pharmaceutical containers from multiple angles simultaneously, and unable to conduct simulation testing in conjunction with environmental changes, thus limiting the validity of the light-blocking performance test results for plastic pharmaceutical containers. Summary of the Invention

[0003] To overcome the shortcomings of existing light-shielding performance testing equipment, which cannot simultaneously perform multi-angle testing on plastic medical containers and cannot conduct simulation testing in conjunction with environmental changes, this invention provides a testing device for plastic medical containers.

[0004] Technical Solution: A testing device for plastic pharmaceutical containers includes a base, an electrically controlled lifting push rod, an upper cover, a lower cover, transparent clamping plates, springs, an electrically controlled lifting frame, a sealing cover, a mounting block, a mounting rod, light sensors, and lamp bodies. The electrically controlled lifting push rod is mounted on the base. The upper cover is fixedly connected to the telescopic end of the electrically controlled lifting push rod. A lower cover, aligned with the lower part of the upper cover, is fixedly connected to the base. Several transparent clamping plates are slidably connected to the base. Springs are fixedly connected between the transparent clamping plates and the base. The electrically controlled lifting frame is mounted on the upper cover. A sealing cover is fixedly connected to the lifting component of the electrically controlled lifting frame. A mounting block is connected inside the sealing cover. A mounting rod is fixedly connected to the mounting block. Several light sensors are mounted on the mounting rod. Several lamp bodies are mounted inside the lower cover, with each lamp body located between two adjacent transparent clamping plates.

[0005] Preferably, a pressure sensor corresponding to the number and position of the springs is installed on the base; one end of the spring fixed to the base is connected to the sensing element of the corresponding pressure sensor.

[0006] Preferably, the mounting block is rotatably connected to the sealing cover; the sealing cover is equipped with a motor that drives the mounting block to rotate.

[0007] Preferably, a first heater is installed on the transparent clamp; a plurality of heating elements for heating the plastic medical container are fixedly connected to the transparent clamp, and the heating elements are fixedly connected to the corresponding first heater.

[0008] Preferably, a second heater is installed inside the mounting block; the second heater is equipped with a heating rod for heating the medicine inside the plastic medical container.

[0009] Preferably, a plurality of stirring discs for agitating the drugs inside the plastic medical container are fixedly attached to the mounting rod.

[0010] Preferably, the stirring plate is located below the corresponding light sensor.

[0011] Preferably, a pressure sensor for monitoring the internal air pressure of the plastic medical container is installed at the bottom of the sealing cap.

[0012] Preferably, the upper cover has several ventilation slots.

[0013] Preferably, an electric fan that blows air upwards is installed on the base; the base has several air duct structures that connect to the air outlet of the electric fan.

[0014] This invention discloses a testing device for plastic medical containers. An upper and lower cover form a closed space. A lamp illuminates the medicine inside the plastic medical container, while a light sensor on a mounting rod is immersed in the medicine to detect the light penetrating the container. A first heater and a second heater are also provided to heat the plastic medical container and its contents to a specified temperature. This allows for multi-angle light detection of the plastic medical container under different temperature conditions, observing whether temperature changes significantly affect the container's light-shielding performance. This enables simulated testing of the plastic medical container incorporating environmental factors.

[0015] The present invention provides a testing device for plastic medical containers, which solves the technical problems of existing light-shielding performance testing devices being unable to simultaneously perform multi-angle testing on plastic medical containers and unable to perform simulation testing in conjunction with environmental changes. This enhances the testing effect on plastic medical containers. In addition, since the drug used in the plastic medical container is nitroglycerin, by monitoring the bubbles released from the drug, it is possible to avoid the phenomenon of missed defects due to the existence of blind spots in the plastic medical container. Attached Figure Description

[0016] Figure 1 A three-dimensional view of a testing device for plastic medical containers; Figure 2 A perspective view of the base of a testing device for plastic medical containers; Figure 3 A three-dimensional view of the transparent clamping plate of a testing device for plastic medical containers; Figure 4 A three-dimensional cross-sectional view of the upper casing of a testing device for plastic medical containers; Figure 5 This is a perspective view of the mounting rod of a testing device for plastic medical containers.

[0017] The markings in the attached diagram are as follows: 11-base, 1101-air duct structure, 12-electrically controlled lifting push rod, 13-upper cover, 1301-ventilation duct structure, 14-lower cover, 21-transparent clamping plate, 22-spring, 23-pressure sensor, 31-electrically controlled lifting frame, 32-sealing cover, 33-mounting block, 34-motor, 35-mounting rod, 36-light sensor, 37-stirring plate, 38-air pressure sensor, 4-lamp body, 51-first heater, 52-heating plate, 61-second heater, 62-heating rod, 7-electric fan. Detailed Implementation

[0018] 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.

[0019] Example 1: A testing device for plastic medical containers, such as... Figures 1-5As shown, the device includes a base 11, electrically controlled lifting push rods 12, an upper cover 13, a lower cover 14, transparent clamping plates 21, springs 22, an electrically controlled lifting frame 31, a sealing cover 32, a mounting block 33, a motor 34, a mounting rod 35, a light sensor 36, and a lamp body 4. Four electrically controlled lifting push rods 12 are mounted on the base 11. The upper cover 13 is fixedly connected to the telescopic ends of the four electrically controlled lifting push rods 12. The lower cover 14 is fixedly connected to the base 11, and the lower cover 14 is located below the upper cover 13. Four transparent clamping plates 21 are slidably connected to the base 11. Pressure devices corresponding to the number and position of the transparent clamping plates 21 are mounted on the base 11. Sensor 23; a spring 22 is fixed between each of the four transparent clamps 21 and the sensing component of the pressure sensor 23; an electrically controlled lifting frame 31 is installed on the upper cover 13; a sealing cover 32 is fixed to the lifting component of the electrically controlled lifting frame 31; a mounting block 33 is rotatably connected inside the sealing cover 32; a motor 34 is installed on the sealing cover 32; the output shaft of the motor 34 is fixed to the mounting block 33; a mounting rod 35 is fixed to the mounting block 33; four light sensors 36 are installed on the mounting rod 35; four lamp bodies 4 are installed inside the lower cover 14, and each lamp body 4 is located between two adjacent transparent clamps 21, so that the lamp bodies 4 and the transparent clamps 21 are alternately distributed.

[0020] like Figure 3 and Figure 5 As shown, each transparent clamp 21 is equipped with a first heater 51; each transparent clamp 21 is fixedly connected with a plurality of heating elements 52, and the heating elements 52 are fixedly connected to the corresponding first heater 51; a second heater 61 is installed in the mounting block 33; a heating rod 62 is installed on the second heater 61.

[0021] In using the plastic medicine container testing device of this embodiment, the user first fills the plastic medicine container to be tested with liquid medicine, and then clamps the plastic medicine container between all the transparent clamps 21 on the base 11. During the process of placing the plastic medicine container between the transparent clamps 21, the plastic medicine container pushes the transparent clamps 21, causing the springs 22 to compress. The springs 22 then push the transparent clamps 21 in the opposite direction to clamp the plastic medicine container tightly. At the same time, the pressure sensor 23 monitors the elastic force generated by the compression of the springs 22. At this time, the mouth of the plastic medicine container... Aligning the sealing cap 32 with the bottom, the user then controls the electric lifting push rod 12 to move the upper cover 13 downwards to cover the lower cover 14, so that the upper cover 13 and the lower cover 14 together form a sealed space to prevent complex external light from shining on the plastic medicine container. At the same time, the electric lifting frame 31 moves the sealing cap 32 to cover the mouth of the plastic medicine container, so that the plastic medicine container is in a sealed state. Simultaneously, the sealing cap 32 immerses the mounting rod 35 and the light sensor 36 on the mounting block 33 downwards into the medicine inside the plastic medicine container, completing the preparation work.

[0022] Then, the lamp body 4 illuminates the plastic medicine container from multiple angles. Multiple light sensors 36 detect the light penetrating the plastic medicine container from various directions within the medicine. Simultaneously, the motor 34 drives the mounting block 33, mounting rod 35, and light sensors 36 to rotate back and forth, allowing the light sensors 36 to continuously change their light detection positions inside the plastic medicine container. This enables multi-angle light detection of the plastic medicine container. By observing the continuous changes in the light detection results of the light sensors 36, the system observes whether the plastic medicine container has adequate light-shielding performance and whether there is any uneven light-shielding performance. During this process, the first heater 51 slowly heats the plastic medicine container through the heating element 52, while the second heater 61 slowly heats the medicine inside the plastic medicine container through the heating rod 62. This allows the temperatures of both the plastic medicine container and the medicine to rise to their designated temperature ranges in a predetermined gradient. By observing the continuous changes in the light detection results of the light sensors 36, the system observes whether the light-shielding performance of the plastic medicine container is significantly affected by the temperature environment. This achieves simulation testing of the plastic medicine container in conjunction with environmental changes.

[0023] As the temperature of both the plastic medical container and the medicine gradually rises, the medicine and residual gas inside the plastic medical container also expand due to heat. The expanding medicine and gas compress the plastic medical container, causing it to expand and deform. The expanding plastic medical container pushes the transparent clamp 21, which in turn drives the spring 22 to further compress. At the same time, the compression of the spring 22 increases the pressure force on the pressure sensor 23, allowing the pressure sensor 23 to promptly detect that the plastic medical container is in a state of expansion and deformation. The expansion and deformation of some areas of the plastic medical container means that the plastic medical container becomes thinner in some of the bulging parts, resulting in different degrees of light blocking in different parts of the bottle, no longer the original uniform light blocking effect. At this time, the motor 34 drives the mounting block 33, the mounting rod 35, and the light sensor 36 to rotate back and forth, allowing the light sensor 36 to continuously change the light detection position inside the plastic medical container, performing multi-angle light detection on the plastic medical container, observing whether there is a significant change in the uniformity of the light blocking performance of the plastic medical container, thereby enhancing the detection effect of the plastic medical container.

[0024] Example 2, as Figures 1-5 As shown, based on the above embodiment 1, a plurality of stirring blades 37 are fixedly connected to the mounting rod 35 in this embodiment; each stirring blade 37 is located below the corresponding light sensor 36.

[0025] In the process of using the plastic pharmaceutical container testing equipment of this embodiment, since some photosensitive drugs continuously release gas when exposed to strong light, these photosensitive drugs need to be stored in plastic bottles with light-shielding properties. For example, nitroglycerin decomposes and releases nitric oxide under light. During the testing of plastic pharmaceutical containers according to the above embodiment, when the light-shielding performance of the plastic pharmaceutical container decreases locally due to temperature, and this decreased light-shielding performance is located in the detection blind zone of all light sensors 36, the light sensors 36 cannot effectively detect this decrease in light-shielding performance, resulting in missed defects. Therefore, this embodiment takes nitroglycerin as an example, where the decreased light-shielding performance of the plastic pharmaceutical container is located in the blind zone of all light sensors 36. When there is a blind spot in the detection of the light sensor 36, the nitroglycerin inside the plastic medicine container will continuously release gas when exposed to light. The gas will rise continuously in the form of bubbles in the nitroglycerin inside the plastic medicine container. At the same time, the motor 34 drives the mounting rod 35 and the stirring plate 37 to reciprocate and stir inside the plastic medicine container, accelerating the gas release speed in the nitroglycerin bubbles. As more bubbles are formed by the stirring of the stirring plate 37 and rise, they pass through the light sensor 36, causing the light sensor 36 to be continuously interfered with in detecting light. At this time, the light sensor 36 can promptly identify that the drug inside the plastic medicine container is continuously releasing gas, indicating that there is a region where the light-shielding performance of the plastic medicine container is reduced. Thus, the plastic medicine container is determined to be a substandard product, further enhancing the detection effect of the plastic medicine container.

[0026] Example 3, as Figures 1-5 As shown, based on the above embodiment 1, the sealing cover 32 of this embodiment is equipped with a pressure sensor 38 at the bottom; the upper cover 13 is provided with a plurality of ventilation slot structures 1301, and the ventilation slot structures 1301 of the upper cover 13 are connected to an external exhaust gas collection device; an electric fan 7 is installed on the base 11; and a plurality of air supply slot structures 1101 connected to the air outlet of the electric fan 7 are provided on the base 11.

[0027] During the use of the plastic medical container testing equipment of this embodiment, when the medicine inside the plastic medical container suddenly releases a large amount of gas due to the influence of temperature and light, the pressure sensor 38 on the sealing cover 32 immediately detects a sudden and sharp increase in the internal pressure of the plastic medical container. At this time, the plastic medical container is at risk of bursting due to the accumulation and increase of internal pressure. Therefore, the electrically controlled lifting frame 31 immediately moves the sealing cover 32 upward away from the plastic medical container, allowing the high-pressure gas inside the plastic medical container to be released to the outside in time. At this time, the upper cover 13 and the lower cover 14 remain in a closed state. Simultaneously, the electric fan 7 rapidly blows air upward between the upper cover 13 and the lower cover 14 through the air duct structure 1101. The airflow is collected in the external exhaust gas collection device through the ventilation duct structure 1301 of the upper cover 13. The continuous upward airflow can accelerate the upward flow of gas around the sealing cover 32, allowing the gas released from the plastic medical container to be collected in the external exhaust gas collection device in a timely manner, thus achieving the safe treatment of toxic gases inside the plastic medical container and ensuring that the gas released inside is guided to the external exhaust gas collection device in a timely manner with the directional airflow, thereby preventing harmful substances from leaking into the external environment.

[0028] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A testing device for plastic pharmaceutical containers, comprising a base (11); an electrically controlled lifting push rod (12) mounted on the base (11); an upper cover (13) fixedly connected to the telescopic end of the electrically controlled lifting push rod (12); and a lower cover (14) aligned below the upper cover (13) fixedly connected to the base (11); characterized in that: It also includes a transparent clamp (21); several transparent clamps (21) are slidably connected to the base (11); a spring (22) is fixed between the transparent clamp (21) and the base (11); an electric lifting frame (31) is installed on the upper cover (13); a sealing cover (32) is fixed to the lifting component of the electric lifting frame (31); an installation block (33) is connected inside the sealing cover (32); an installation rod (35) is fixed to the installation block (33); several light sensors (36) are installed on the installation rod (35); several lamp bodies (4) are installed inside the lower cover (14), and each lamp body (4) is located between two adjacent transparent clamps (21).

2. The testing equipment for plastic medical containers according to claim 1, characterized in that: The base (11) is equipped with pressure sensors (23) that correspond to the number and position of the springs (22); one end of the spring (22) is fixed to the base (11) and connected to the sensing element of the corresponding pressure sensor (23).

3. The testing equipment for plastic medical containers according to claim 1, characterized in that: The mounting block (33) is rotatably connected to the sealing cover (32); the sealing cover (32) is equipped with a motor (34) that drives the mounting block (33) to rotate.

4. The testing equipment for plastic medical containers according to claim 1, characterized in that: A first heater (51) is installed on the transparent clamp (21); a number of heating elements (52) for heating plastic medical containers are fixed on the transparent clamp (21), and the heating elements (52) are fixed to the corresponding first heater (51).

5. The testing equipment for plastic medical containers according to claim 1, characterized in that: A second heater (61) is installed inside the mounting block (33); a heating rod (62) for heating the medicine inside the plastic medicine container is installed on the second heater (61).

6. The testing equipment for plastic medical containers according to claim 3, characterized in that: Several stirring discs (37) for stirring the medicine inside the plastic medicine container are fixedly attached to the mounting rod (35).

7. The testing equipment for plastic medical containers according to claim 6, characterized in that: The stirring plate (37) is located below the corresponding light sensor (36).

8. A testing device for plastic medical containers according to any one of claims 1-7, characterized in that: A pressure sensor (38) for monitoring the internal pressure of the plastic medical container is installed at the bottom of the sealing cap (32).

9. A testing device for plastic medical containers according to claim 8, characterized in that: The upper cover (13) has several ventilation slot structures (1301).

10. A testing device for plastic medical containers according to claim 9, characterized in that: An electric fan (7) that blows air upwards is installed on the base (11); the base (11) has several air duct structures (1101) that connect to the air outlet of the electric fan (7).

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