A culture medium tube rack

Abstract

A culture medium tube rack, comprising a support frame, a partition tube net, a first hole plate and a bottom plate are sequentially arranged from top to bottom in the support frame, the partition tube net and the first hole plate are fixedly connected with the support frame, the bottom plate is detachably connected with the support frame through a movable mechanism at four corners, each grid of the partition tube net corresponds to each first jack of the first hole plate, when the culture medium tube is inserted into the first jack of the first hole plate, the bottom of the culture medium tube abuts against the bottom plate, and the upper part of the culture medium tube is located in the grid, and the outer diameter of the culture medium tube cover is greater than the diameter of the first jack of the first hole plate. The utility model is used for solving the problems that the existing culture medium tube is inconvenient to take and shake, it is difficult to quickly position the positive point, and the culture medium tube is easy to collide and damage in the 7-day culture period.

Description

Technical Field

[0001] This utility model relates to a culture medium tube rack. Background Technology

[0002] In the biomedical field, culture tubes are essential tools for experiments such as microbial culture and biological indicator culture. Traditionally, culture tubes are placed in fixed, multi-row, double-layer test tube racks for cultivation. However, according to FDA guidelines, sterilization validation must cover all potential risks, including the possibility of delayed growth. ISO 11138-1:2017 and USP <1229.12> also require that sterilization is considered successful only if no growth of the sterilized biological indicator occurs within 7 days. Therefore, to cover the maximum time window for microbial recovery after injury and avoid false negative results, broad-spectrum tryptone-soybean liquid culture tubes inoculated with biological indicators must be cultured at the appropriate temperature for at least 7 days. During this 7-day culture period, daily observation is typically required to quickly identify positive sites for timely subculturing for species confirmation and to monitor the stability of each sterilization process. However, traditional fixed, multi-row, double-layer test tube racks have the following problems in practical use. First, during the 7-day culture period, each liquid culture tube needs to be shaken daily to avoid false turbidity. However, due to their fixed structure, traditional test tube racks are extremely inconvenient for handling and shaking culture medium tubes. Secondly, when the number of accumulated liquid culture medium tubes inoculated with biological indicators is huge (in the thousands), traditional test tube racks cannot quickly locate positive spots, affecting observation efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a culture medium tube rack to solve the problems of inconvenience in handling and shaking traditional test tube racks, difficulty in quickly locating positive spots, and easy damage to culture medium tubes during a 7-day culture cycle.

[0004] To solve the above problems, the technical solution of this utility model is as follows:

[0005] A culture medium tube rack includes a support frame. Inside the support frame, a partition network, a first well plate, and a base plate are arranged sequentially from top to bottom. The partition network and the first well plate are fixedly connected to the support frame. The four corners of the base plate are detachably connected to the support frame through movable mechanisms. Each grid on the partition network corresponds to each first insertion hole on the first well plate. When the culture medium tube is inserted into the first insertion hole of the first well plate, the bottom of the culture medium tube abuts against the base plate, and the upper part of the culture medium tube is located within the grid. The outer diameter of the culture medium tube cap is larger than the diameter of the first insertion hole of the first well plate.

[0006] Furthermore, the active mechanism includes a sleeve that is fitted over the support frame pillar and a support sleeve that is fixedly connected to the pillar. The sleeve rests on the support sleeve, and a hook is fixedly connected to the sleeve. A first downward bend is provided around the base plate, and the first bend is inserted into the hook.

[0007] Furthermore, it also includes a second perforated plate, which is located between the base plate and the first perforated plate, with each second insertion hole on the second perforated plate corresponding to each first insertion hole on the first perforated plate.

[0008] Furthermore, the support frame, the partition network, the first perforated plate, and the base plate are all made of stainless steel.

[0009] Furthermore, the second perforated plate is made of plastic material.

[0010] Furthermore, plastic handles are provided on the support frame.

[0011] Furthermore, the distance between the partition pipe network and the first orifice plate is 4 cm, and the distance between the first orifice plate and the bottom plate is 5 cm.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1) After removing the base plate, lift the tube rack. Because the diameter of the upper part of the culture medium tube is smaller than the grid width in the tube network, and the diameter of the culture medium tube cap is larger than the diameter of the first insertion hole of the first well plate, the culture medium tube cap falls onto the first well plate, fully exposing the lower part of the tube body. Light can be provided from the bottom by using a handheld illuminometer, allowing for batch observation. Compared with the traditional method of manually removing and observing one tube at a time, this invention greatly improves observation efficiency, enabling rapid and accurate location of positive points and facilitating timely shaking observation.

[0014] 2) The tube rack design of this invention allows multiple culture medium tubes to be shaken simply by shaking the rack, eliminating the need for manual shaking of each tube individually as in traditional methods. This design not only saves time and manpower but also results in more uniform turbidity dispersion, facilitating observation and improving the accuracy and reliability of the experiment.

[0015] 3) Under normal conditions, the second well plate is placed on the base plate. After removing the base plate, the second well plate is moved upwards, allowing each culture medium tube to be inserted into its respective well. This prevents the bottoms of the culture medium tubes from colliding with each other during shaking. This design effectively protects the culture medium tubes, preventing damage or contamination caused by collisions, and ensuring the accuracy of experimental results. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the main structure of this utility model.

[0021] In the figure: support frame 1, plastic handle 2, partition network 3, moving mechanism 4 (support sleeve 41, sleeve 42, hook 43), second well plate 5 (second insertion hole 51), base plate 6 (first bend 61), first well plate 7 (first insertion hole 71), culture medium tube 8. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 4 As shown, a culture medium tube rack includes a rectangular support frame 1. Inside the support frame 1, from top to bottom, there are a partition mesh 3, a first perforated plate 7, and a base plate 6. The partition mesh 3 and the first perforated plate 7 are fixedly connected to the support frame 1. The four corners of the base plate 6 are detachably connected to the support frame 1 through a movable mechanism 4. Each grid on the partition mesh 3 corresponds to each first insertion hole 71 on the first perforated plate 7. The first perforated plate 7 has 10 first insertion holes 71 arranged horizontally and 8 first insertion holes 71 arranged vertically, for a total of 80 first insertion holes 71. When the culture medium tube 8 is inserted into the first insertion hole 71 of the first perforated plate 7, the bottom of the culture medium tube 8 abuts against the base plate 6, and the upper part of the culture medium tube 8 is located within the grid. The outer diameter of the cap of the culture medium tube 8 is larger than the diameter of the first insertion hole.

[0024] In use, the base plate 6 is separated from the support frame 1 by the movable mechanism 4, the culture medium tube 8 tube rack is lifted, and the culture medium tube 8 falls down. Figure 4 As shown, after the cap of culture medium tube 8 is placed on the first well plate 7, the lower part of the tube is fully exposed. At this time, a handheld illuminometer is used to illuminate the bottom of the culture medium tube 8, providing uniform light for overall observation. Compared with the traditional method of manually observing each tube one by one, this method significantly improves observation efficiency, enabling rapid and accurate location of positive points and facilitating timely shaking observation.

[0025] In addition, during the cultivation process, the culture medium tubes 8 need to be shaken periodically to avoid false turbidity. This invention allows users to shake multiple culture medium tubes 8 simultaneously by shaking the entire tube rack. This eliminates the need for manual shaking of each culture medium tube 8 individually, saving time and manpower, and also makes the turbidity more evenly dispersed, facilitating observation and improving the accuracy and reliability of the experiment.

[0026] Furthermore, the movable mechanism 4 includes a sleeve 42 that is fitted over the support column of the support frame 1 and a support sleeve 41 that is fixedly connected to the support column. The sleeve 42 rests on the support sleeve 41, and hooks 43 are fixedly connected to the sleeve 42. A downward first bend 61 is provided around the base plate 6, and the first bend 61 is inserted into the hooks 43. In use, the base plate 6 is moved upward, allowing the first bends 61 to move out of the hooks 43. Then, by rotating the hooks 43, the base plate 6 can be completely removed from the support frame 1. This makes the connection and separation of the base plate 6 from the support frame 1 more convenient, allowing users to operate as needed and improving the flexibility and practicality of the pipe rack.

[0027] Furthermore, it also includes a second well plate 5, with each second insertion hole 51 on the second well plate 5 corresponding to each first insertion hole on the first well plate 7. Normally, the second well plate 5 is placed on the base plate 6. After removing the base plate 6, the second well plate 5 is moved upward slightly so that each culture medium tube 8 is inserted into the insertion hole in the second well plate 5. During shaking, there is no direct contact between the culture medium tubes 8 to avoid the risk of collision and breakage.

[0028] Furthermore, the second well plate 5 is made of plastic. Plastic is relatively soft, and during use, even if it comes into contact with the culture medium tubes, it can minimize friction and scratches on the surface of the culture medium tubes, effectively protecting the integrity and appearance of the culture medium tubes, and avoiding the impact of surface scratches on the observation of experimental phenomena inside the culture medium tubes, or damage to the culture medium tubes that would affect the experiment.

[0029] Furthermore, the support frame 1, the partition pipe network 3, the first orifice plate 7, and the base plate 6 are all made of stainless steel. Stainless steel has good corrosion resistance and stability, can adapt to various experimental environments, and extends the service life of the pipe rack.

[0030] Furthermore, a plastic handle 2 is provided on the support frame 1. The plastic handle 2 provides a gripping point for lifting and shaking the tube rack, reducing the risk of the tube rack slipping due to unstable grip.

[0031] Furthermore, the partition network 3 is 74 cm away from the first well plate, and the first well plate 7 is 65 cm away from the bottom plate. There is a certain distance between the first insertion holes, and at the same time, there is a certain gap between the partition network 3 and the first well plate 7 and the bottom plate 6, which not only ensures air circulation between the culture medium tubes 8, but also provides effective support for the culture medium tubes 8.

[0032] The embodiments described in this specification are merely examples of implementations of the inventive concept. The scope of protection of this utility model should not be considered as limited to the specific forms described in the embodiments. The scope of protection of this utility model also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A culture medium tube rack, characterized by: The system includes a support frame, within which, from top to bottom, are arranged a partition network, a first perforated plate, and a base plate. The partition network and the first perforated plate are fixedly connected to the support frame. The four corners of the base plate are detachably connected to the support frame via a movable mechanism. Each grid on the partition network corresponds to each first insertion hole on the first perforated plate. When the culture medium tube is inserted into the first insertion hole of the first perforated plate, the bottom of the culture medium tube rests against the base plate, and the upper part of the culture medium tube is located within the grid. The diameter of the culture medium tube cap is larger than the diameter of the first insertion hole.

2. The culture medium tube rack according to claim 1, characterized in that: The movable mechanism includes a sleeve that is fitted onto the support frame column and a support sleeve that is fixedly connected to the column. The sleeve rests on the support sleeve and a hook is fixedly connected to the sleeve. A first downward bend is provided around the base plate, and the first bend is inserted into the hook.

3. A culture medium tube rack according to claim 1 or 2, characterized in that: It also includes a second perforated plate, which is located between the base plate and the first perforated plate, and each second insertion hole on the second perforated plate corresponds to each first insertion hole on the first perforated plate.

4. A culture medium tube rack according to claim 3, characterized in that: The second perforated plate is made of plastic material.

5. A culture medium tube rack according to claim 1 or 2, characterized in that: The pipe network, support frame, first orifice plate, and base plate are all made of stainless steel.

6. A culture medium tube rack according to claim 1 or 2, characterized in that: Plastic handles are provided on the support frame.

7. A culture medium tube rack according to claim 1 or 2, characterized in that: The distance between the partition pipe network and the first orifice plate is 4 cm, and the distance between the first orifice plate and the bottom plate is 5 cm.

Images