Disposable medical membrane bag for bacterial culture

Abstract

The utility model relates to the technical field of bacterial culture, in particular to a disposable medical membrane bag for bacterial culture, which comprises a culture membrane bag, air circulation holes are arranged on two sides of the culture membrane bag, sealing pastes are adhered to positions of the culture membrane bag close to the air circulation holes, the top of the culture membrane bag is fixedly connected with a connecting pipe, and the connecting pipe is fixedly connected with the culture membrane bag. An input pipe is fixedly connected to the top of the connecting pipe, a sealing film is glued to the top of the input pipe, and an exhaust assembly is arranged on one side of the culture film bag and used for pumping out gas in the culture film bag. Switching between sealing and non-sealing can be achieved through a tearing structure of the sealing patch and the culture film bag, oxygen can be injected into the culture film bag by tearing the sealing film in the using process, the effect of balancing oxygen in the culture film bag is achieved, and the problem that in the prior art, a constant-oxygen box needs to be adopted for aerobic bacterium culture, and therefore the oxygen in the culture film bag can not be balanced is solved. Therefore, the culture cost of the aerobic bacteria is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bacterial culture, in particular to a disposable film bag for medical bacterial culture. Background Art

[0002] Bacterial culture is a technology that uses artificial methods to make bacteria grow and reproduce. Bacteria are widely distributed in nature, with large numbers and many types. They can benefit mankind, but they can also cause disease. Most bacteria can be cultured artificially, that is, they are inoculated on culture media to make them grow and reproduce. The cultured bacteria are used for research, identification and application. Bacterial culture is a complex technology, and when culturing bacteria, the culture dish containing bacteria needs to be placed in a membrane bag for observation and recording.

[0003] There are generally two types of existing membrane bags. One is a sealed membrane bag with an exhaust structure, which is generally used when cultivating anaerobic bacteria. The other is a membrane bag with air holes all over the surface of the bag, which is used to cultivate aerobic bacteria. When using a membrane bag with air holes all over the surface of the bag, it needs to be placed in an incubator with constant oxygen, which results in higher cultivation costs and more limited usage scenarios of the membrane bags.

[0004] For this reason, a disposable film bag for medical bacteria culture is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a disposable membrane bag for medical bacteria culture, so as to solve the problem that the membrane bags proposed in the above background technology are divided into two types: sealed bags and breathable membrane bags, which lead to excessive limitations in use, and the membrane bags with air holes also need other equipment to ensure the oxygen concentration around the culture dish.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a disposable membrane bag for medical bacteria culture, comprising a culture membrane bag, air circulation holes are opened on both sides of the culture membrane bag, a sealing sticker is glued to the culture membrane bag near the air circulation holes, a connecting tube is fixedly connected to the top of the culture membrane bag, an input tube is fixedly connected to the top of the connecting tube, a sealing film is glued to the top of the input tube, and an exhaust assembly is arranged on one side of the culture membrane bag, and the exhaust assembly is used to extract the gas inside the culture membrane bag.

[0007] Preferably, the exhaust assembly comprises an output pipe, the output pipe is fixedly connected to one side of the culture membrane bag, a chimeric block is fixedly connected inside the output pipe, and a sealing rubber pad is abutted on a side of the chimeric block away from the culture membrane bag.

[0008] Preferably, a sealing block is fixedly connected inside the input pipe, and the sealing block is designed to be conical. An input threaded sleeve is rotatably connected outside the input pipe.

[0009] Preferably, the engaging block and the sealing rubber pad are arranged in a conical shape, a sliding rod is fixedly connected to one side of the sealing rubber pad, and a reset component is arranged outside the sliding rod.

[0010] Preferably, the reset assembly comprises a spring, the spring is fixedly connected to one side of the engaging block, one end of the spring away from the engaging block is fixedly connected to a limiting plate, and a connecting assembly is provided between the sealing pad and the limiting plate.

[0011] Preferably, an exhaust hole is opened on one side of the limiting plate, and an output threaded sleeve is rotatably connected to the outside of the output pipe.

[0012] Preferably, the connecting assembly comprises a sliding rod, one end of the sliding rod is fixedly connected to one side of the limiting plate, and one end of the sliding rod away from the limiting plate is fixedly connected to one side of the sealing rubber pad.

[0013] Preferably, the exhaust holes are arranged in a plurality of arrays on one side of the limiting plate, and a sealing strip is provided on one side of the culture membrane bag.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model can realize the switching between sealing and non-sealing through the tearing structure of the sealing sticker and the culture film bag. When in use, the sealing film can be torn open to inject oxygen into the culture film bag, thereby achieving the effect of balancing the oxygen inside the culture film bag. This solves the problem of high culture cost caused by the need to use a constant oxygen box for the culture of aerobic bacteria in the past, thereby reducing the cost of aerobic bacteria culture.

[0016] 2. The utility model places the culture dish into the culture film bag. At this time, there is no need to uncover the air circulation hole. It only needs to absorb the oxygen inside the culture film bag through the output tube, and the sealing film seals the injection port, thus ensuring that no other bacteria can enter, achieving an anaerobic culture effect, solving the previous tearing structure, first tearing to extract oxygen, and then sealing the torn part to achieve a closed effect, thereby improving the sterile sealing effect of the culture film bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a disposable membrane bag for medical bacteria culture according to an embodiment of the utility model;

[0019] Figure 2This is a schematic diagram of the cross-sectional structure of a connecting tube of a disposable membrane bag for medical bacteria culture according to an embodiment of the utility model;

[0020] Figure 3 A disposable membrane bag for medical bacteria culture according to an embodiment of the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of an output tube of a disposable membrane bag for medical bacteria culture according to an embodiment of the utility model;

[0022] Figure 5 A disposable membrane bag for medical bacteria culture according to an embodiment of the utility model Figure 4 Enlarged structural diagram at B in the middle.

[0023] The markings in the figure are: 1. culture membrane bag; 2. air circulation hole; 3. sealing sticker; 4. connecting pipe; 5. input pipe; 6. sealing block; 7. sealing membrane; 8. input threaded sleeve; 9. output pipe; 10. fitting block; 11. sealing rubber pad; 12. spring; 13. sliding rod; 14. limit plate; 15. exhaust hole; 16. output threaded sleeve; 17. sealing strip. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figures 1 to 5As shown, a specific embodiment of the utility model provides a disposable membrane bag for medical bacteria culture, including a culture membrane bag 1, air circulation holes 2 are opened on both sides of the culture membrane bag 1, a sealing sticker 3 is glued to the culture membrane bag 1 near the air circulation hole 2, a connecting tube 4 is fixedly connected to the top of the culture membrane bag 1, an input tube 5 is fixedly connected to the top of the connecting tube 4, a sealing film 7 is glued to the top of the input tube 5, an exhaust component is arranged on one side of the culture membrane bag 1, the exhaust component is used to extract the gas inside the culture membrane bag 1, the exhaust component includes an output pipe 9, the output pipe 9 is fixedly connected to one side of the culture membrane bag 1, a mosaic block 10 is fixedly connected inside the output pipe 9, and a sealing rubber pad 11 is abutted against the side of the mosaic block 10 away from the culture membrane bag 1.

[0027] By adopting the above technical scheme, the utility model first divides the bacteria into anaerobic and aerobic types through the culture dishes, and puts all the classified culture dishes into the culture film bag 1. At this time, when the culture dishes contain anaerobic bacteria, the sealing rubber pad 11 can be controlled to separate from the mosaic block 10 through the output pipe 9, and the oxygen inside the culture film bag 1 can be extracted to create an anaerobic environment. At this time, the bacteria can be placed in the culture room for culture. When the culture film bag 1 contains aerobic bacteria, the connection of the oxygen delivery equipment can be disinfected first, and the sealing film 7 can be torn off, and the oxygen delivery end can be fixed inside the input pipe 5. At this time, oxygen can be input into the culture film bag 1, and then the sealing sticker 3 can be torn off, so that the inside of the culture film bag 1 can be ensured to be in an aerobic environment with a fixed concentration for a long time, achieving a dual-purpose effect of one bag.

[0028] Specifically, Figure 3 and Figure 5 As shown, a sealing block 6 is fixedly connected to the inside of the input pipe 5, and the sealing block 6 is designed in a conical shape. An input threaded sleeve 8 is rotatably connected to the outside of the input pipe 5. The engaging block 10 and the sealing rubber pad 11 are arranged in a conical shape. A sliding rod 13 is fixedly connected to one side of the sealing rubber pad 11. A reset component is arranged outside the sliding rod 13. The reset component includes a spring 12. The spring 12 is fixedly connected to one side of the engaging block 10. The end of the spring 12 away from the engaging block 10 is fixedly connected to a limiting plate 14. A connecting component is arranged between the sealing rubber pad 11 and the limiting plate 14.

[0029] By adopting the above technical solution, after tearing off the sealing film 7, the output end can be completely fitted with the input tube 5 through the structure of the sealing block 6, so that the output end can be perfectly fitted with the sealing block 6. At this time, rotate the input threaded sleeve 8 so that the input threaded sleeve 8 is between the output end and the input tube 5, so that the pipeline can be tightly connected, thereby inputting oxygen. When extraction is required, the pressure will cause the sealing pad 11 to separate from the mosaic block 10, and the oxygen inside the culture membrane bag 1 is extracted. When the extraction is completed, the spring 12 will push the limit plate 14, and the connecting assembly will be used to reset the sealing pad 11, so that the sealing pad 11 and the mosaic block 10 are fitted and sealed.

[0030] Specifically, Figure 4 and Figure 5 As shown, an exhaust hole 15 is opened on one side of the limiting plate 14, an output threaded sleeve 16 is rotatably connected to the outside of the output pipe 9, and the connecting component includes a sliding rod 13, one end of the sliding rod 13 is fixedly connected to one side of the limiting plate 14, and the end of the sliding rod 13 away from the limiting plate 14 is fixedly connected to one side of the sealing pad 11, and there are multiple groups of exhaust holes 15 arrayed on one side of the limiting plate 14, and a sealing strip 17 is provided on one side of the culture membrane bag 1.

[0031] By adopting the above technical solution, the suction end can be connected to the output tube 9, and then the output tube 9 can be connected through the output threaded sleeve 16. When extracting, the sliding rod 13 connects the sealing pad 11 and the limit plate 14, so as to reset the seal. When extracting, the air inside the culture membrane bag 1 will be extracted through the exhaust holes 15, and the multiple groups of exhaust holes 15 can ensure that the problem of the air inside the culture membrane bag 1 not being able to be completely sucked out due to insufficient suction effect will not occur, and when in use, the opening and closing of the bag body can be controlled by the sealing strip 17, which is convenient for sealing with the sealing film 7.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0033] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A disposable membrane bag for medical bacteria culture, comprising a culture membrane bag (1), characterized in that: The culture membrane bag (1) is provided with air circulation holes (2) on both sides, the culture membrane bag (1) is glued with a sealing sticker (3) near the air circulation holes (2), the top of the culture membrane bag (1) is fixedly connected with a connecting tube (4), the top of the connecting tube (4) is fixedly connected with an input tube (5), and the top of the input tube (5) is glued with a sealing film (7); An exhaust component is provided on one side of the culture membrane bag (1), and the exhaust component is used to extract the gas inside the culture membrane bag (1).

2. A disposable film bag for medical bacteria culture according to claim 1, characterized in that: The exhaust assembly comprises an output pipe (9), the output pipe (9) is fixedly connected to one side of the culture membrane bag (1), a chimeric block (10) is fixedly connected inside the output pipe (9), and a sealing rubber pad (11) is abutted against the side of the chimeric block (10) away from the culture membrane bag (1).

3. A disposable film bag for medical bacteria culture according to claim 2, characterized in that: The input pipe (5) is fixedly connected to a sealing block (6) inside, the sealing block (6) is designed to be conical, and the input pipe (5) is rotatably connected to an input threaded sleeve (8) outside.

4. A disposable film bag for medical bacteria culture according to claim 3, characterized in that: The engaging block (10) and the sealing rubber pad (11) are arranged in a conical shape; one side of the sealing rubber pad (11) is fixedly connected to a sliding rod (13); and a reset component is arranged outside the sliding rod (13).

5. A disposable film bag for medical bacteria culture according to claim 4, characterized in that: The reset assembly comprises a spring (12), the spring (12) is fixedly connected to one side of the engaging block (10), one end of the spring (12) away from the engaging block (10) is fixedly connected to a limiting plate (14), and a connecting assembly is provided between the sealing pad (11) and the limiting plate (14).

6. A disposable film bag for medical bacteria culture according to claim 5, characterized in that: An exhaust hole (15) is provided on one side of the limiting plate (14), and an output threaded sleeve (16) is rotatably connected to the outside of the output pipe (9).

7. A disposable film bag for medical bacteria culture according to claim 6, characterized in that: The connecting assembly comprises a sliding rod (13), one end of the sliding rod (13) is fixedly connected to one side of a limiting plate (14), and one end of the sliding rod (13) away from the limiting plate (14) is fixedly connected to one side of a sealing rubber pad (11).

8. A disposable film bag for medical bacteria culture according to claim 7, characterized in that: The exhaust holes (15) are arranged in a plurality of arrays on one side of the limiting plate (14), and a sealing strip (17) is provided on one side of the culture membrane bag (1).

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