Microbial indicator fixing device
By designing a microbial indicator fixing device including a limiting structure, a first magnet and a fixing member, the problem that the microbial indicator glass capsule cannot be stably located in the center of the liquid is solved, and the accuracy and error of the test results are reduced.
Patent Information
- Application Number
- CN202421081789.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In the existing microbial killing challenge test, the microbial indicator glass capsule cannot be stably located in the center of the liquid, resulting in inaccurate test results.
A microbial indicator fixing device is designed, including a limiting structure, a first magnet and a fixing member. The limit structure is provided with a mounting position for installing the microbial indicator container. The first magnet and the fixing member are magnetically absorbed to fix the microbial indicator container on the limit structure below the liquid surface and position it in the center of the liquid.
Effectively prevent the microbial indicator container from floating at any position on the liquid level, ensure the accuracy of the test results and reduce the test error.
Smart Images
Figure CN222809443U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of microbial killing test, in particular to a microbial indicator fixing device. Background Art
[0002] During the production and bagging process of liquids such as medicines, it is necessary to conduct a microbial killing challenge test on the high-temperature sterilization process of the medicine to verify whether the sterilization process is qualified.
[0003] The existing microbial killing challenge test process usually directly places a glass capsule containing a microbial indicator into a soft bag containing a drug solution. During the test, the microbial indicator glass capsule will float at any position on the liquid surface and cannot be stably located at the center of the liquid. Since the temperature at the center of the liquid is usually lower than the temperature at non-center positions, the glass capsule is usually at a higher ambient temperature when it is at a non-center position of the liquid, resulting in inaccurate test results. Utility Model Content
[0004] The utility model aims to provide a microbial indicator fixing device to alleviate the technical problem in the prior art that during the microbial killing challenge test, the microbial indicator glass capsule floats on the liquid surface in the soft bag and cannot be stably located in the center of the liquid, resulting in inaccurate test results.
[0005] In a first aspect, the utility model provides a microbial indicator fixing device, comprising a limiting structure, a first magnet, and a fixing member capable of magnetically attracting the first magnet;
[0006] The limiting structure is provided with a mounting position for mounting and fixing the microorganism indicator container, and the limiting structure can enter into a bag body for accommodating the microorganism indicator container;
[0007] One of the first magnet and the fixing member is arranged on the limiting structure, and the other is arranged below the bag body. The first magnet and the fixing member are used for magnetic attraction to each other to fix the microbial indicator container on the limiting structure below the liquid surface in the bag body and to locate the microbial indicator container at the center of the liquid in the bag body.
[0008] In an optional embodiment, the first magnet is disposed on the limiting structure, the fixing member is plate-shaped, and the fixing member is capable of supporting the bag body.
[0009] In an optional embodiment, the limiting structure includes a cylinder, the internal space of the cylinder is used to accommodate the microbial indicator container, and there is a gap between the inner wall of the cylinder and the outer wall of the microbial indicator container, and the side wall of the cylinder is provided with a plurality of liquid inlet holes for liquid to enter its internal space.
[0010] In an optional embodiment, the circumferential side wall of the cylinder is provided with a plurality of the first magnets or a plurality of the fixing members distributed at intervals along the circumference thereof.
[0011] In an optional embodiment, a plurality of the liquid inlet holes are distributed on the circumferential side wall of the cylinder at intervals along the circumference of the cylinder, and each of the liquid inlet holes extends along the length direction of the cylinder.
[0012] In an optional embodiment, the limiting structure further includes a cover body, and the cover body is used to cover the barrel opening of the barrel to limit the microorganism indicator container from withdrawing from the barrel.
[0013] In an optional embodiment, the circumferential side wall of the cover body is provided with a plurality of the first magnets or a plurality of the fixing members distributed at intervals along the circumference thereof.
[0014] In an optional embodiment, a second magnet is further included. The second magnet is provided at a position of the cylinder body near the cylinder mouth and on the cover body. The cylinder body and the cover body are connected by the magnetic attraction of the second magnet.
[0015] In an optional embodiment, the material of the limiting structure is a heat insulating material.
[0016] In an optional embodiment, the fixing member is made of a ferromagnetic metal or alloy, and the surface of the fixing member is coated with an anti-rust layer.
[0017] The microbial indicator fixing device provided by the utility model includes a limiting structure, a first magnet, and a fixing member that can be magnetically attracted to the first magnet; the limiting structure is provided with a mounting position for mounting and fixing the microbial indicator container, and the limiting structure can enter the bag body for accommodating the microbial indicator container; one of the first magnet and the fixing member is arranged on the limiting structure, and the other is arranged below the bag body, and the first magnet and the fixing member are used for mutual magnetic attraction to fix the microbial indicator container on the limiting structure below the liquid surface in the bag body and to make the microbial indicator container located at the center of the liquid in the bag body. The microbial indicator fixing device provided by the utility model is used for microbial killing challenge test. During use, the microbial indicator container (such as a microbial indicator glass capsule) containing the microbial indicator can be first fixed to the mounting position on the limiting structure, and then the limiting structure and the microbial indicator container are placed in a bag body such as a soft bag, and then the liquid such as the liquid to be tested is poured into the bag body. Then the bag is sealed, and the fixing part or the first magnet not provided on the limiting structure is placed under the bag. At this time, the fixing part and the first magnet will attract each other, so that the limiting structure moves downward in the bag and is stably located below the liquid surface. At the same time, the limiting structure is located at the center of the liquid in the bag, so that the microbial indicator container is always immersed in the liquid and located at the center of the liquid, and will not float at any position on the liquid surface under the action of the buoyancy of the liquid, thereby effectively reducing the error of the test result. It should be noted that in order to prevent the limiting structure from blocking the contact between the liquid and the microbial indicator container and affecting the test result, the limiting structure can adopt a frame structure or be provided with a plurality of through holes so that the liquid can contact the microbial indicator container. Furthermore, a gap can be provided between the inner wall of the limiting structure and the outer wall of the microbial indicator container, and the gap is used to allow the liquid to cover the microbial indicator container.
[0018] Compared with the prior art, the microbial indicator fixing device provided by the utility model can effectively fix the microbial indicator container in the bag body below the liquid surface through the cooperation of the limiting structure, the first magnet and the fixing piece, and make the microbial indicator container stably located at the center position of the liquid in the bag body, effectively preventing the microbial indicator container from floating at any position on the liquid surface, thereby reducing the test error. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1A schematic diagram of the structure of a microbial indicator fixing device and a microbial indicator container provided in an embodiment of the utility model;
[0021] Figure 2 A schematic diagram of the structure of a cylinder in a microbial indicator fixing device provided in an embodiment of the utility model;
[0022] Figure 3 A schematic diagram of the structure of a fixing member in a microbial indicator fixing device provided in an embodiment of the utility model.
[0023] Icon: 1-limiting structure; 10-cylinder; 100-liquid inlet; 11-cover; 2-first magnet; 3-fixing part; 4-microorganism indicator container; 5-second magnet. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0026] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0027] Example:
[0028] like Figure 1 , Figure 2 and Figure 3As shown, the microbial indicator fixing device provided in this embodiment includes a limiting structure 1, a first magnet 2, and a fixing member 3 that can be magnetically attracted to the first magnet 2; a mounting position for mounting and fixing a microbial indicator container 4 is provided on the limiting structure 1, and the limiting structure 1 can enter a bag body for accommodating the microbial indicator container 4; one of the first magnet 2 and the fixing member 3 is provided on the limiting structure 1, and the other is provided below the bag body, and the first magnet 2 and the fixing member 3 are used for mutual magnetic attraction to fix the microbial indicator container 4 on the limiting structure 1 below the liquid surface in the bag body and to locate the microbial indicator container 4 at the center of the liquid in the bag body.
[0029] The microbial indicator fixing device provided in this embodiment is used for microbial killing challenge test. During use, the microbial indicator container 4 (such as a microbial indicator glass capsule) containing the microbial indicator can be first fixed to the installation position on the limiting structure 1, and then the limiting structure 1 and the microbial indicator container 4 are placed in a bag body such as a soft bag, and then the liquid such as the liquid to be tested is poured into the bag body. Then the bag body is sealed, and the fixing member 3 or the first magnet 2 not provided on the limiting structure 1 is placed under the bag body. At this time, the fixing member 3 and the first magnet 2 will be mutually attracted, so that the limiting structure 1 moves downward in the bag body and is stably located below the liquid surface, and at the same time, the limiting structure 1 is located at the center of the liquid in the bag body, so that the microbial indicator container 4 is always immersed in the liquid and located at the center of the liquid, and will not float to any position on the liquid surface under the action of the buoyancy of the liquid, thereby effectively reducing the error of the test result.
[0030] Compared with the prior art, the microbial indicator fixing device provided in this embodiment can effectively fix the microbial indicator container 4 in the bag body below the liquid surface through the cooperation of the limiting structure 1, the first magnet 2 and the fixing member 3, and make the microbial indicator container 4 stably located at the center of the liquid in the bag body, effectively preventing the microbial indicator container 4 from floating at any position on the liquid surface, thereby reducing the test error.
[0031] The first magnet 2 is made of magnetic material, such as a magnet.
[0032] Furthermore, the fixing member 3 can also be made of a magnetic material, in which case the fixing member 3 below the bag body and the first magnet 2 on the limiting structure 1 inside the bag body need to be arranged with different poles, so that the fixing member 3 below the bag body can be magnetically attracted to the first magnet 2 inside the bag body. Alternatively, the fixing member 3 can be made of a material that can be attracted by a magnet, for example, a metal or alloy with ferromagnetism.
[0033] In order to reduce the use of magnetic materials and prevent the magnetic attraction between the fixing member 3 and the first magnet 2 from being too strong, in this embodiment, the fixing member 3 is preferably made of a ferromagnetic metal or alloy.
[0034] In order to improve the stability of the bag body and the stability of the limiting structure 1 in the bag body during the test, Figure 1 As shown, in this embodiment, the first magnet 2 is preferably disposed on the limiting structure 1, the fixing member 3 is plate-shaped, and the fixing member 3 can support the bag body.
[0035] During the test, after the bag is placed on the fixed plate, the first magnet 2 on the limiting structure 1 in the bag will be attracted to the fixing member 3 so that the bag is stably located on the fixing member 3. After the bag is placed on the fixed plate, the fixing member 3 and the bag on it can also be placed on the sterilization tray, and then the sterilization tray is placed in the sterilization cabinet to sterilize the liquid in the bag and the microorganisms in the microbial indicator container 4. After the sterilization is completed, the microbial indicator container 4 in the bag is taken out, and the microorganisms in the microbial indicator container 4 are inspected to complete the entire test process.
[0036] It can be seen that the plate-shaped fixing member 3 can not only realize the magnetic attraction process between it and the first magnet 2, but also effectively support the limiting structure 1 and the bag body, thereby effectively ensuring the stability of the test process.
[0037] like Figure 1 and Figure 2 As shown, the limiting structure 1 includes a cylinder 10, the internal space of the cylinder 10 is used to accommodate the microbial indicator container 4, and there is a gap between the inner wall of the cylinder 10 and the outer wall of the microbial indicator container 4, and the side wall of the cylinder 10 is provided with a plurality of liquid inlet holes 100 for liquid to enter its internal space.
[0038] When the limiting structure 1 includes a cylinder 10, the aforementioned installation position is the inner space of the cylinder 10. During use, in order to effectively prevent the microorganism indicator container 4 from escaping from the cylinder 10, the cylinder 10 can be placed flat in the bag, and correspondingly, the first magnet 2 or the fixing member 3 is arranged on the circumferential side wall of the cylinder 10. At this time, the cylinder 10 can be stably and horizontally located in the bag, thereby limiting the microorganism indicator container 4 from escaping upward from the cylinder 10 due to buoyancy.
[0039] It should be noted that a plurality of liquid inlet holes 100 are provided on the side wall of the cylinder 10 , which can effectively prevent the cylinder 10 from blocking the liquid from contacting the microbial indicator container 4 , thereby preventing the cylinder 10 from affecting the test results.
[0040] Further, such as Figure 1 As shown, the circumferential side wall of the cylinder 10 is provided with a plurality of first magnets 2 or a plurality of fixing members 3 distributed at intervals along the circumference thereof.
[0041] The multiple first magnets 2 or multiple fixings 3 distributed at intervals along the circumference of the barrel 10 can provide the barrel 10 with multiple magnetic attraction locations in the circumferential direction. When the barrel 10 enters the bag body, no matter which side of the circumferential side wall of the barrel 10 faces the bottom of the bag body, the barrel 10 can quickly and accurately be magnetically attracted to the fixings 3 or the first magnets 2 below the bag body, thereby effectively improving the ease of use of the microbial indicator fixing device.
[0042] like Figure 1 As shown, in this embodiment, the circumferential side wall of the cylinder 10 is preferably provided with a plurality of first magnets 2 distributed along the circumference thereof. In this case, the number of the fixing member 3 can be one, and the fixing member 3 is placed under the bag body for adsorption with any first magnet 2.
[0043] like Figure 2 As shown, a plurality of liquid inlet holes 100 are distributed on the circumferential side wall of the cylinder 10 at intervals along the circumference of the cylinder 10 , and each liquid inlet hole 100 extends along the length direction of the cylinder 10 .
[0044] When the liquid inlet hole 100 extends along the length direction of the barrel 10, the area of the liquid inlet hole 100 can be effectively increased, thereby increasing the contact area between the liquid and the microbial indicator container 4 inside the barrel 10, ensuring the high-temperature sterilization effect and further effectively reducing the test error.
[0045] like Figure 1 As shown, the limiting structure 1 further includes a cover 11 , which is used to cover the mouth of the barrel 10 to limit the microorganism indicator container 4 from withdrawing from the barrel 10 .
[0046] After the limiting structure 1 and the microorganism indicator container 4 thereon are put into the bag body, the cover body 11 can be covered on the mouth of the cylinder body 10. At this time, the cover body 11 can further effectively prevent the microorganism indicator container 4 from withdrawing from the cylinder body 10, thereby effectively preventing the microorganism indicator container 4 from floating up.
[0047] When the limiting structure 1 also includes a cover body 11, in this embodiment, the internal volume of the cylinder 10 is preferably larger than the volume of the microbial indicator container 4. Based on this, when the liquid enters the cylinder 10 through the liquid inlet hole 100, the liquid can fully cover the microbial indicator container 4, thereby effectively ensuring the high-temperature sterilization effect.
[0048] Further, such as Figure 1 As shown, the circumferential side wall of the cover body 11 is provided with a plurality of first magnets 2 or a plurality of fixing members 3 distributed at intervals along the circumference thereof.
[0049] By disposing the first magnet 2 or the fixing member 3 on the cover body 11 , the cover body 11 can also be adsorbed with the fixing member 3 or the first magnet 2 below the bag body, thereby effectively ensuring the position stability of the cover body 11 .
[0050] Arranging a plurality of first magnets 2 or a plurality of fixing members 3 spaced apart along the circumference of the cover body 11 can also effectively improve the convenience of use of the microbial indicator fixing device.
[0051] It should be noted that, in order to further improve the convenience of assembly and use of the microbial indicator fixing device, when the cylinder 10 is provided with a first magnet 2, the cover 11 is also provided with a first magnet 2, and at this time the cylinder 10 and the cover 11 can cooperate with the same fixing member 3 to ensure the stability of the cylinder 10 and the cover 11. Correspondingly, when the cylinder 10 is provided with a fixing member 3, the cover 11 is also provided with a fixing member 3, and at this time the cylinder 10 and the cover 11 can cooperate with the same first magnet 2 to ensure the stability of the cylinder 10 and the cover 11.
[0052] like Figure 1 and Figure 2 As shown, the microbial indicator fixing device provided in this embodiment further includes a second magnet 5 . The second magnet 5 is provided at a position close to the barrel opening of the barrel 10 and on the cover 11 . The barrel 10 and the cover 11 are connected by the magnetic attraction of the second magnet 5 .
[0053] When the cover 11 is placed at the mouth of the cylinder 10, the second magnet 5 on the cover 11 and the second magnet 5 on the cylinder 10 can be attracted to each other, so that the cover 11 is fixed at the mouth of the cylinder 10, and the cylinder 10 and the cover 11 are connected to each other.
[0054] The second magnet 5 can also be made of magnetic material. In order to improve the magnetic attraction stability and balance between the cover 11 and the cylinder 10, the second magnet 5 on the cylinder 10 and the second magnet 5 on the cover 11 can be multiple, and the multiple second magnets 5 on the cylinder 10 are evenly spaced along the circumference of the cylinder 10, and the second magnets 5 on the cover 11 are evenly spaced along the circumference of the cover 11, and the multiple second magnets 5 on the cylinder 10 and the multiple second magnets 5 on the cover 11 are adsorbed one by one.
[0055] Furthermore, in order to improve the connection stability between the cover body 11 and the cylinder body 10, in this embodiment, the second magnet 5 on the cylinder body 10 is preferably arranged on the end surface at the cylinder mouth of the cylinder body 10, and the second magnet 5 on the cover body 11 is arranged on the side of the cover body 11 facing the cylinder body 10.
[0056] It should be noted that the connection method between the cylinder 10 and the cover 11 is not limited to the above-mentioned method of mutual magnetic attraction of the second magnets 5. The cylinder 10 and the cover 11 can also be connected to each other by threaded connection, interference fit or snap connection.
[0057] It should also be noted that, since the material of the limiting structure 1 is selected as a thermal insulation material, it can prevent the limiting structure 1 from transferring heat at a non-liquid center position to the liquid at the center position, thereby preventing the liquid at the center position from heating up and affecting the reliability of the test results. Therefore, in this embodiment, the material of the limiting structure 1 is preferably a thermal insulation material.
[0058] Furthermore, since plastic can also have good heat insulation performance and good anti-rust and corrosion performance, the preferred material of the limiting structure 1 in this embodiment is plastic.
[0059] It should be noted that the limiting structure 1 made of plastic material can also have a good protective effect on the microbial indicator container 4 and effectively prevent the microbial indicator container 4 from being damaged.
[0060] As mentioned above, the material of the fixing part 3 can be a ferromagnetic metal or alloy. Since the metal or alloy has poor corrosion resistance, and the microbial indicator fixing device provided in this embodiment is usually used in a high-temperature water bath sterilization environment, the surface of the fixing part 3 is preferably coated with an anti-rust layer in this embodiment.
[0061] Among them, the material of the anti-rust layer can be anti-rust paint or anti-rust film.
[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A microbial indicator fixing device, characterized in that: It comprises a limiting structure (1), a first magnet (2), and a fixing member (3) capable of being magnetically attracted to the first magnet (2); The limiting structure (1) is provided with a mounting position for mounting and fixing the microorganism indicator container (4), and the limiting structure (1) can enter into a bag body for accommodating the microorganism indicator container (4); One of the first magnet (2) and the fixing member (3) is arranged on the limiting structure (1), and the other is arranged below the bag body. The first magnet (2) and the fixing member (3) are used for mutual magnetic attraction to fix the microbial indicator container (4) on the limiting structure (1) below the liquid surface in the bag body and to locate the microbial indicator container (4) at the center of the liquid in the bag body.
2. The microbial indicator fixing device according to claim 1, characterized in that: The first magnet (2) is arranged on the limiting structure (1), the fixing member (3) is plate-shaped, and the fixing member (3) is capable of supporting the bag body.
3. The microbial indicator fixing device according to claim 1, characterized in that: The limiting structure (1) comprises a cylinder (10), the internal space of the cylinder (10) is used to accommodate the microorganism indicator container (4), and there is a gap between the inner wall of the cylinder (10) and the outer wall of the microorganism indicator container (4), and the side wall of the cylinder (10) is provided with a plurality of liquid inlet holes (100) for liquid to enter its internal space.
4. The microbial indicator fixing device according to claim 3, characterized in that: The circumferential side wall of the cylinder (10) is provided with a plurality of the first magnets (2) or a plurality of the fixing members (3) which are distributed at intervals along the circumference thereof.
5. The microbial indicator fixing device according to claim 4, characterized in that: A plurality of the liquid inlet holes (100) are distributed on the circumferential side wall of the cylinder (10) at intervals along the circumference of the cylinder (10), and each of the liquid inlet holes (100) extends along the length direction of the cylinder (10).
6. The microbial indicator fixing device according to any one of claims 3 to 5, characterized in that: The limiting structure (1) further comprises a cover (11), wherein the cover (11) is used to cover the mouth of the barrel (10) to limit the microorganism indicator container (4) from being withdrawn from the barrel (10).
7. The microbial indicator fixing device according to claim 6, characterized in that: The circumferential side wall of the cover body (11) is provided with a plurality of the first magnets (2) or a plurality of the fixing members (3) distributed at intervals along the circumference thereof.
8. The microbial indicator fixing device according to claim 6, characterized in that: It also includes a second magnet (5), and the second magnet (5) is provided at a position close to the barrel mouth of the barrel (10) and on the cover body (11), and the barrel body (10) and the cover body (11) are connected by the magnetic attraction of the second magnet (5).
9. The microbial indicator fixing device according to any one of claims 1 to 5, characterized in that: The material of the limiting structure (1) is a heat-insulating material.
10. The microbial indicator fixing device according to any one of claims 1 to 5, characterized in that: The material of the fixing part (3) is a ferromagnetic metal or alloy, and the surface of the fixing part (3) is coated with a rust-proof layer.