Temperature-controlled humidity chamber for pharmaceutical stability testing

Abstract

The utility model relates to medicine test technical field, concretely is the temperature control constant humidity box of medicine stability test, including support base, the support base upper surface right -hand side fixed mounting has control mechanism, control mechanism left side installation has test box, the test box includes box, the hinge in box front side surface left end's door, fixed mounting in the middle position of box outside upper surface's motor and rotationally connected in the middle position of box inside's rotating shaft, the rotating shaft outer surface welds have a plurality of test carousel, each the test carousel is placed with a plurality of medicine placing mechanism on every. The utility model discloses through the setting of the rotating disc, makes the medicine in the constant temperature and humidity box when receiving test, can through the rotation and make the test personnel can observe the stability state of all medicines inside, place the medicine in the medicine placing mechanism inside, makes the medicine when the test carousel rotates, the medicine does not roll everywhere, is convenient for the observation of medicine.

Description

Technical Field

[0001] This utility model relates to the field of drug testing technology, specifically to a temperature and humidity control chamber for drug stability testing. Background Technology

[0002] Throughout the entire process of drug research and development, production, and storage, drug stability is a key element in ensuring drug quality, efficacy, and safety. Drug stability testing aims to explore the changes in active pharmaceutical ingredients or formulations over time under the influence of factors such as temperature, humidity, and light. This provides a scientific basis for drug production, packaging, storage, and transportation conditions. Furthermore, the test determines the drug's shelf life. A constant temperature and humidity chamber is typically used to test the stability of drugs under different environmental temperatures.

[0003] Utility model patent CN220383337U discloses a control mechanism for a constant temperature and humidity chamber. This utility model includes a chamber body, a mounting frame, and a control box. The mounting frame is mounted on one side of the chamber body, and the control box is mounted on one end of the mounting frame. Cooling fans are installed at the bottom of both ends of the control box, and a docking hole is provided at one end of the control box. A limiting structure is installed on the outside of the docking hole. This utility model, by providing an auxiliary installation structure, allows the control box to be pre-assembled with the mounting frame during installation. The mounting frame with the control box is then inserted into a designated position on the chamber body, and a locking block, under the elastic force of a spring, engages and disengages with the locking block within the chamber body's inner cavity. This facilitates convenient assembly and disassembly of the control mechanism, improving its ease of use.

[0004] While the aforementioned utility model allows for convenient assembly and disassembly of the temperature and humidity chamber, in actual use, due to the chamber's depth and number of layers, it is impossible to fully observe the state of all drugs inside through the observation window. Therefore, we propose a temperature and humidity controlled chamber for drug stability testing. Utility Model Content

[0005] This invention provides a temperature-controlled humidity chamber for drug stability testing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A temperature and humidity control chamber for drug stability testing includes a support base, a control mechanism is fixedly installed on the right side of the upper surface of the support base, and a test chamber is installed on the left side of the control mechanism.

[0008] The test chamber includes a chamber body, a door hinged to the left end of the front surface of the chamber body, a motor fixedly installed at the middle position of the upper outer surface of the chamber body, and a rotating shaft rotatably connected to the middle position inside the chamber body. Several test turntables are welded to the outer surface of the rotating shaft, and several drug dispensing mechanisms are placed on each test turntable. A heat insulation plate is provided on the upper inner surface of the chamber body.

[0009] As a preferred technical solution, the rotating shaft is coaxially connected to the motor output shaft, and there are three test turntables, which are equidistantly distributed on the side surface of the rotating shaft.

[0010] This setup, with its coaxial connection, ensures efficient power transmission, reduces vibration and noise, and extends the lifespan of the equipment.

[0011] As a preferred technical solution, an observation window is provided in the middle of the front surface of the box door, and a handle is welded to the right side of the front surface of the box door.

[0012] This setting allows for real-time monitoring of sample status via an observation window, eliminating the need for frequent opening of the chamber and avoiding interference with the chamber's internal environment.

[0013] As a preferred technical solution, the observation window is composed of double-layered tempered glass, and the outer surface of the handle is covered with a sponge pad.

[0014] This feature enhances insulation and reduces condensation; the high-strength material prevents cracking and ensures operator safety.

[0015] As a preferred technical solution, the test turntable has a mounting hole in the middle of its upper surface and a plurality of placement slots on its upper surface.

[0016] This setting ensures a secure connection between the test turntable and the rotating shaft, preventing wobbling during rotation.

[0017] As a preferred technical solution, the placement slots are divided into two layers, both of which are circumferentially distributed. The inner layer has six slots, with a 60-degree angle between each pair, and the outer layer has twelve slots, with a 30-degree angle between each pair.

[0018] This setup allows for more samples to be accommodated in a limited space, increasing test throughput. The circumferential distribution ensures that all samples are at similar distances from the temperature and humidity sources inside the chamber, reducing test deviations caused by environmental differences.

[0019] As a preferred technical solution, the drug dispensing mechanism includes a drug dispensing block, a drug dispensing groove formed on the upper surface of the drug dispensing block, and auxiliary blocks welded to the upper ends of the left and right sides of the outer surface of the drug dispensing block.

[0020] This design allows each dispensing mechanism to be individually installed and removed, facilitating sample replacement and cleaning. The auxiliary block helps operators remove the dispensing mechanism.

[0021] As a preferred technical solution, the cross-section of the drug dispensing groove is an isosceles trapezoidal structure that is wider at the top and narrower at the bottom, and the outer surface of the drug dispensing block is provided with anti-slip texture.

[0022] This design improves versatility; the wider top and narrower bottom structure facilitates sample handling, and the anti-slip texture on the outer surface increases grip friction.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. By setting up a rotating disk, the stability of all drugs inside the constant temperature and humidity chamber can be observed by the test personnel through rotation when the drug is being tested.

[0025] 2. The drug is placed inside the drug dispensing mechanism so that it does not roll around when the test turntable rotates, making it easier to observe the drug. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the test box in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the middle box door of this utility model;

[0029] Figure 4 This is a schematic diagram of the test turntable in this utility model;

[0030] Figure 5 This is a schematic diagram of the drug delivery mechanism in this utility model;

[0031] The meanings of the labels in the diagram are as follows:

[0032] 100. Support base; 200. Control mechanism; 300. Test chamber; 310. Chamber body; 320. Motor; 330. Heat insulation board; 340. Chamber door; 341. Observation window; 342. Handle; 350. Test turntable; 351. Mounting hole; 352. Placement slot; 360. Drug placement mechanism; 361. Drug placement block; 362. Auxiliary block; 363. Drug placement slot; 370. Rotating shaft. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0034] Please see Figures 1-5 This embodiment provides a technical solution:

[0035] The temperature and humidity control chamber for drug stability testing includes a support base 100, a control mechanism 200 fixedly installed on the right side of the upper surface of the support base 100, and a test chamber 300 installed on the left side of the control mechanism 200.

[0036] The test chamber 300 includes a chamber body 310, a door 340 hinged to the left end of the front surface of the chamber body 310, a motor 320 fixedly installed at the middle position of the upper outer surface of the chamber body 310, and a rotating shaft 370 rotatably connected to the middle position inside the chamber body 310. Several test turntables 350 are welded to the outer surface of the rotating shaft 370. Several drug dispensing mechanisms 360 are placed on each test turntable 350. A heat insulation plate 330 is provided on the upper inner surface of the chamber body 310. Through the above mechanism, when the drug is placed inside the constant temperature and humidity chamber for stability testing, the test personnel can more conveniently observe the state of all the drugs being tested inside the test chamber 300.

[0037] Furthermore, such as Figure 2 As shown, the rotating shaft 370 is coaxially connected to the output shaft of the motor 320. There are three test turntables 350, which are equidistantly distributed on the side surface of the rotating shaft 370. The three-layer test turntables 350 can efficiently utilize the internal space of the housing 310.

[0038] Furthermore, such as Figure 3 As shown, an observation window 341 is provided in the middle of the front surface of the box door 340, and a handle 342 is welded to the right side of the front surface of the box door 340. The observation window 341 is composed of double-layered tempered glass, and the outer surface of the handle 342 is covered with a sponge pad for easy gripping by the user.

[0039] In this embodiment, as Figure 4 As shown, a mounting hole 351 is provided in the middle of the upper surface of the test turntable 350, and several placement slots 352 are provided on the upper surface of the test turntable 350. The placement slots 352 are divided into two layers and are distributed in a circular pattern. There are six slots in the inner layer, with a 60-degree angle between each pair, and twelve slots in the outer layer, with a 30-degree angle between each pair. The high-density layout allows more samples to be accommodated in a limited space.

[0040] In this embodiment, as Figure 5 As shown, the drug dispensing mechanism 360 includes a drug dispensing block 361, a drug dispensing groove 363 formed on the upper surface of the drug dispensing block 361, and auxiliary blocks 362 welded to the upper ends of the left and right sides of the outer surface of the drug dispensing block 361. The cross-section of the drug dispensing groove 363 is an isosceles trapezoidal structure that is wider at the top and narrower at the bottom. The outer surface of the drug dispensing block 361 is provided with anti-slip texture to increase the friction generated when the user grips the drug dispensing block 361.

[0041] It is worth noting that the structure and working principle of the motor 320 involved in this embodiment are as known to those skilled in the art, and will not be described in detail here. The structure and working principle of the support base 100 and the control mechanism 200 involved in this embodiment are all technologies disclosed in the prior art, and will not be described in detail here.

[0042] In the specific use of the temperature and humidity control chamber for drug stability testing in this embodiment, the drug is first placed into the drug placement slot 363 on the drug placement block 361, and then the drug placement block 361 is placed into the placement slot 352 on the test turntable 350. Then the chamber door 340 is closed, and the temperature and humidity inside the test chamber 300 are controlled by the control mechanism 200. During the testing process, at regular intervals, the tester needs to observe whether the drug inside the test chamber 300 has changed through the observation window 341. At the same time, the motor 320 is started, and the rotation shaft 370 coaxially connected to the motor 320 controls the rotation of the test turntable 350 to ensure that the tester can observe the state of all the drugs on the test turntable 350 through the observation window 341.

[0043] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature-controlled humidity chamber for drug stability testing, including a support base (100), characterized in that: A control mechanism (200) is fixedly installed on the right side of the upper surface of the support base (100), and a test box (300) is installed on the left side of the control mechanism (200). The test chamber (300) includes a chamber body (310), a door (340) hinged to the left end of the front surface of the chamber body (310), a motor (320) fixedly installed at the middle position of the upper outer surface of the chamber body (310), and a rotating shaft (370) rotatably connected to the middle position inside the chamber body (310). Several test turntables (350) are welded to the outer surface of the rotating shaft (370), and several drug dispensing mechanisms (360) are placed on each test turntable (350). A heat insulation plate (330) is provided on the upper inner surface of the chamber body (310).

2. The temperature and humidity control chamber for drug stability testing as described in claim 1, characterized in that: The rotating shaft (370) is coaxially connected to the output shaft of the motor (320), and there are three test turntables (350) in total, which are equally distributed on the side surface of the rotating shaft (370).

3. The temperature and humidity control chamber for drug stability testing as described in claim 1, characterized in that: An observation window (341) is provided in the middle of the front surface of the box door (340), and a handle (342) is welded to the right side of the front surface of the box door (340).

4. The temperature and humidity control chamber for drug stability testing as described in claim 3, characterized in that: The observation window (341) is made of double-layered tempered glass, and the outer surface of the handle (342) is covered with a sponge pad.

5. The temperature and humidity control chamber for drug stability testing as described in claim 1, characterized in that: The test turntable (350) has an installation hole (351) in the middle of its upper surface and several placement slots (352) on its upper surface.

6. The temperature and humidity control chamber for drug stability testing as described in claim 5, characterized in that: The placement slots (352) are divided into two layers, both of which are circumferentially distributed. There are six in the inner layer, with a 60-degree angle between each pair, and twelve in the outer layer, with a 30-degree angle between each pair.

7. The temperature and humidity control chamber for drug stability testing as described in claim 1, characterized in that: The drug dispensing mechanism (360) includes a drug dispensing block (361), a drug dispensing groove (363) formed on the upper surface of the drug dispensing block (361), and auxiliary blocks (362) welded to the upper ends of the left and right sides of the outer surface of the drug dispensing block (361).

8. The temperature and humidity control chamber for drug stability testing as described in claim 7, characterized in that: The cross-section of the drug delivery groove (363) is an isosceles trapezoidal structure that is wider at the top and narrower at the bottom, and the outer surface of the drug delivery block (361) is provided with anti-slip texture.

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