Light intensity gradient simulation device for pharmaceutical stability test chamber

Abstract

The utility model discloses a kind of illumination intensity gradient simulation devices of medicine stability test box, it relates to the field of medicine stability detection, the illumination intensity gradient simulation device of this medicine stability test box, including box and lamp bead, drive motor engagement is set carousel to carry the medicine to be detected in box, carousel is directly above and is slidably set lamp bead by mounting plate, existing technology is fixedly arranged in box, the lamp bead setting of different light intensity irradiation for the environment in box is set to be installed by two staggered arrangement arc-shaped plate, realize the adjustment of lamp bead in front and back left and right freedom, simulate the difference of sunlight irradiation angle in different seasons under natural environment, in addition, the carousel driven periodically by drive motor in box is used to carry the medicine to be detected, with the periodic rotation of carousel, simulate the intensity change of illumination within a day under natural state, more conform to the storage environment of medicine under natural illumination, test result is more accurate.

Description

Technical Field

[0001] This utility model proposes a drug testing chamber, which relates to the field of drug stability testing, and specifically relates to a light intensity gradient simulation device for a drug stability testing chamber. Background Technology

[0002] A pharmaceutical stability test chamber is a device that simulates the environment that pharmaceuticals may encounter during storage, transportation, and use by precisely controlling temperature, humidity, and light conditions. It is an essential piece of equipment for GMP certification in the pharmaceutical industry.

[0003] Existing equipment can control the light intensity inside the test chamber through graded adjustment. However, a stable light intensity does not match the actual environment of the medicine. Some medicines are stored in a natural environment, and the light intensity they receive should change gradually over time. This time includes the intensity changes throughout the day and the gradient changes with the seasons. These environmental conditions cannot be accurately provided by existing equipment.

[0004] Therefore, those skilled in the art propose a light intensity gradient simulation device for a drug stability test chamber, which is designed based on the light intensity gradient simulation device according to the changes in the natural environment, and is closer to the actual environment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a light intensity gradient simulation device for a drug stability test chamber. Instead of controlling light intensity by controlling the power of LED beads, the existing technology uses a rotating disk inside the chamber to carry the test drug. This disk can rotate periodically to simulate the light intensity and angle at different times of day in a natural environment, including day and night switching. Furthermore, the LED beads can be adjusted to change the illumination angle via a mounting plate to further simulate the light angle in different seasons, thus more closely matching the light intensity received by the drug under natural conditions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a light intensity gradient simulation device for a drug stability test chamber, comprising a chamber and LEDs. The light intensity is controlled by the LEDs inside the chamber. However, existing equipment can usually only control the light intensity by controlling the number or power of the LEDs. Such test conditions lack natural variations, do not conform to the actual situation, and affect the test conclusions.

[0007] A turntable is vertically installed on the inner bottom surface of the box. The turntable carries the medicine and moves periodically to simulate the change of the angle of light exposure over time. The medicine is fixed on the turntable. As the turntable is rotated, it simulates the light intensity that the medicine is subjected to throughout the day in the natural environment, which is more in line with the medicine preservation test in the natural storage environment.

[0008] The top of the housing is equipped with a mounting plate, and the LED beads are mounted on the top of the housing via the mounting plate. The LED beads can be adjusted in position in all directions via the mounting plate to simulate the change of light intensity with the seasons.

[0009] Preferably, a protrusion is fixed at the middle position of the bottom of the box, and a drive motor is provided inside the protrusion. The turntable is engaged with the drive motor and disposed inside the box.

[0010] The protrusion lifts the turntable away from the bottom wall of the housing, providing space for rotation, and the drive motor engages to drive the turntable to rotate periodically.

[0011] Preferably, the outer wall of the turntable is fixed with a clip to position the drug to be tested.

[0012] Gears are symmetrically arranged on the inner side of the protrusion corresponding to the inner wall of the turntable, which cooperate with the drive motor to form a three-point positioning of the turntable, ensuring the turntable is suspended and rotates.

[0013] Preferably, the mounting plate includes a first arc-shaped plate, which is fixed at the middle position of the top wall inside the box, with the axis of the turntable as the center of the first arc-shaped plate, to ensure that the distance between the lamp bead and the medicine remains unchanged when the position of the lamp bead is adjusted.

[0014] A second arc-shaped plate is slidably disposed on the lower surface of the first arc-shaped plate, and the lamp bead is slidably disposed on the lower surface of the second arc-shaped plate. The second arc-shaped plate is slidably disposed on the lower surface of the first arc-shaped plate, thereby realizing the adjustment of the lamp bead's degrees of freedom in the front-back and left-right directions.

[0015] Preferably, the lower surfaces of the first and second arc-shaped plates are provided with grooves along the arc direction. The second arc-shaped plate slides along the grooves on the lower surface of the first arc-shaped plate for adjustment, and the LED beads slide along the grooves on the lower surface of the second arc-shaped plate for adjustment.

[0016] This utility model discloses a light intensity gradient simulation device for a drug stability test chamber, which has the following beneficial effects:

[0017] The light intensity gradient simulation device of this drug stability test chamber uses existing technology to fix the LEDs inside the chamber. The LEDs that provide different light intensities to the chamber environment are installed through two staggered arc plates, allowing for free adjustment of the LEDs in all directions. This simulates the differences in the angle of sunlight in different seasons under natural conditions. In addition, a turntable driven by a motor is set inside the chamber to carry the drug to be tested. As the turntable rotates periodically, it simulates the changes in light intensity throughout the day under natural conditions, which is closer to the storage environment of drugs under natural light and makes the test results more accurate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the turntable installation structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the LED bead and mounting plate of this utility model.

[0022] In the diagram: 1. Housing; 2. LED bead; 3. Turntable; 4. Mounting plate; 401. First arc plate; 402. Second arc plate; 5. Protrusion; 6. Drive motor; 7. Clip; 8. Gear; 9. Slide. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] This utility model discloses a light intensity gradient simulation device for a drug stability test chamber;

[0025] According to the appendix Figure 1 As shown, the test includes a housing 1 and LED beads 2. The light intensity is controlled by the LED beads 2 inside the housing 1. However, existing equipment can usually only control the light intensity by controlling the number or power of the LED beads 2. This test condition lacks natural variation, does not match the actual situation, and affects the test conclusion.

[0026] Inside the box 1, a turntable 3 is vertically installed on the inner bottom surface. The turntable 3 carries the medicine and moves periodically to simulate the change of the angle of light exposure over time. The medicine is fixed on the turntable 3. As the turntable 3 is rotated, it simulates the light intensity that the medicine is subjected to throughout the day in the natural environment, which is more in line with the medicine preservation test in the natural storage environment.

[0027] An installation plate 4 is provided on the inner top of the housing 1. The LED beads 2 are installed on the inner top of the housing 1 through the installation plate 4. The LED beads 2 can be adjusted in position in the front, back, left and right directions through the installation plate 4 to simulate the change of light intensity with the seasons.

[0028] According to the appendix Figure 2 As shown, a protrusion 5 is fixed in the middle of the bottom of the box 1, and a drive motor 6 is provided inside the protrusion 5. The turntable 3 is engaged with the drive motor 6 and is located inside the box 1.

[0029] The protrusion 5 lifts the turntable 3 away from the inner bottom wall of the housing 1, providing rotation space, and the drive motor 6 engages to drive the turntable 3 to rotate periodically.

[0030] The outer wall of the turntable 3 is fixed with a clip 7 to position the drug to be tested.

[0031] According to the appendix Figure 3 As shown, gears 8 are symmetrically arranged on the inner side of the protrusion 5 corresponding to the inner wall of the turntable 3. They cooperate with the drive motor 6 to form a three-point positioning of the turntable 3, ensuring the suspended installation and rotation of the turntable 3.

[0032] Mounting plate 4 includes a first arc plate 401, which is fixed in the middle of the top wall inside the box 1. The axis of the turntable 3 is used as the center of the first arc plate 401 to ensure that the distance between the lamp bead 2 and the medicine remains unchanged when the position is adjusted.

[0033] A second arc plate 402 is slidably disposed on the lower surface of the first arc plate 401, and the lamp bead 2 is slidably disposed on the lower surface of the second arc plate 402. The second arc plate 402 is slidably disposed on the lower surface of the first arc plate 401, thereby realizing the adjustment of the lamp bead 2 in both the front-back and left-right directions.

[0034] The lower surfaces of the first arc plate 401 and the second arc plate 402 are both provided with grooves 9 along the arc direction. The second arc plate 402 slides along the grooves 9 on the lower surface of the first arc plate 401 for adjustment, and the LED beads 2 slide along the grooves 9 on the lower surface of the second arc plate 402 for adjustment.

[0035] The light intensity gradient simulation device of this drug stability test chamber uses existing technology to fix the LED beads 2 inside the chamber 1. The LED beads 2, which provide different light intensities to the environment inside the chamber 1, are installed through two staggered arc plates, allowing the LED beads 2 to be adjusted freely in all directions to simulate the difference in the angle of sunlight in different seasons under natural conditions. In addition, a turntable 3 driven by a drive motor 6 is set inside the chamber 1 to carry the drug to be tested. As the turntable 3 rotates periodically, it simulates the changes in light intensity throughout the day under natural conditions, which is closer to the storage environment of drugs under natural light and makes the test results more accurate.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A light intensity gradient simulation device for a drug stability test chamber, comprising a chamber body (1) and LED beads (2), wherein the light intensity is controlled inside the chamber body (1) via the LED beads (2), characterized in that: A turntable (3) is vertically installed on the inner bottom surface of the box (1). The turntable (3) carries the medicine and makes periodic movements to simulate the change of the irradiation angle of light over time. The top of the box (1) is provided with a mounting plate (4), and the lamp beads (2) are installed on the top of the box (1) through the mounting plate (4) to simulate the change of light intensity with the seasons.

2. The light intensity gradient simulation device for the drug stability test chamber as described in claim 1, characterized in that: A protrusion (5) is fixed at the middle position of the bottom of the box (1), and a drive motor (6) is provided inside the protrusion (5). The turntable (3) is engaged with the drive motor (6) and is located inside the box (1).

3. The light intensity gradient simulation device for the drug stability test chamber as described in claim 2, characterized in that: The outer wall of the turntable (3) is fixed with a clip (7), and gears (8) are symmetrically arranged on the inner side of the protrusion (5) corresponding to the inner wall of the turntable (3).

4. The light intensity gradient simulation device for the drug stability test chamber as described in claim 1, characterized in that: The mounting plate (4) includes a first arc plate (401), which is fixed in the middle of the top wall of the box (1). A second arc plate (402) is slidably disposed on the lower surface of the first arc plate (401), and the lamp bead (2) is slidably disposed on the lower surface of the second arc plate (402).

5. The light intensity gradient simulation device for the drug stability test chamber as described in claim 4, characterized in that: The lower surfaces of the first arc plate (401) and the second arc plate (402) are provided with grooves (9) along the arc direction. The second arc plate (402) slides along the groove (9) on the lower surface of the first arc plate (401) for adjustment. The lamp bead (2) slides along the groove (9) on the lower surface of the second arc plate (402) for adjustment.

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