Biosafety type sterilizing filter and biosafety type dirt packing device

Abstract

The utility model provides a kind of biological safety type sterilization filter and biological safety type dirt packing device, it is related to waste disposal technical field.The biological safety type sterilization filter utilizes bottle mouth bottle cap principle, after passing through the shrinked garbage bag bottle mouth in garbage bag mouth, using high temperature and high pressure filter core cover to seal garbage bag mouth, and then can safely extrude garbage bag exhaust, reduce the volume of garbage bag;At the same time, when using ordinary autoclave, it can ensure that high-temperature steam penetrates the filter core cover into the garbage bag smoothly, achieving better sterilization effect;When using vacuum pulsating autoclave device, it can be realized without opening the bag before putting into the sterilization device, and smoothly completing the vacuumization of garbage bag and high-temperature steam filling in the sterilization device, and then realizing better sterilization effect under the condition of ensuring biological safety.In addition, the biological safety type sterilization filter of the utility model can also be used in combination by setting a connecting ball rod to realize multi-layer packing.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment technology, and in particular to a biosafety sterilization filter and a biosafety waste packaging device. Background Technology

[0002] High-temperature, high-pressure steam sterilization is a crucial method for handling highly pathogenic microorganisms in high-level biosafety laboratories. Currently, existing high-pressure resistant biosafety bags primarily employ a gooseneck packing method during autoclaving. However, the tightness of the gooseneck packing is difficult to control, and the completely sealed bag hinders heat exchange and steam flow during sterilization, resulting in unsatisfactory sterilization effects. Typically, 2-3 sterilization cycles are required to achieve the desired results. Over time, this significantly increases the sterilization cost of existing high-pressure resistant biosafety bags, requiring increased manpower and financial resources while shortening the lifespan of the sterilizer and causing considerable inconvenience to experimental activities. Furthermore, the existing double-layer gooseneck packing method for autoclaving bags is cumbersome, and high-temperature steam may not easily penetrate the inner bag during sterilization, leading to bag breakage.

[0003] Therefore, it is both necessary and urgent to research and develop a biosafety sterilization filter that is resistant to high temperature and high pressure, has strong steam penetration, is easy to pack waste, is low in cost, sterilizes more thoroughly, and is reusable, for use in the high-temperature and high-pressure sterilization treatment of waste in biosafety laboratories.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The purpose of this invention is to provide a biosafety sterilization filter for high-temperature and high-pressure steam sterilization. The biosafety sterilization filter can be applied to the high-pressure sterilization of double-layer packaged waste in high-level laboratories, effectively avoiding the problems of incomplete sterilization and residual bacteria and viruses that occur during existing double-layer packaged high-pressure sterilization.

[0006] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted: This utility model provides a biosafety sterilization filter for high-temperature and high-pressure steam sterilization, the biosafety sterilization filter including a high-temperature and high-pressure resistant filter element cover, a shrinkable garbage bag bottle mouth, and a connecting rod; The high-temperature and high-pressure filter cartridge cover includes an integrally formed high-pressure filter cartridge cover top and a high-pressure filter cartridge cover opening. The inner side of the high-pressure filter cartridge cover opening is provided with an internal thread; the outer side of the shrinkable garbage bag bottle opening is provided with an external thread that mates with the internal thread of the high-pressure filter cartridge cover opening. A connecting rotating ring is provided on the outer edge of the high-pressure filter element cover. The connecting ball rod is a rod-shaped structure and is inserted through the connecting rotating ring. The connecting ball rod is at a 90° angle to the top of the high-pressure filter element cover.

[0007] Furthermore, the high-temperature and high-pressure filter cover has a circular mesh structure, and a gas filter element is installed inside the high-temperature and high-pressure filter cover.

[0008] Furthermore, the opening of the shrinkable garbage bag is closable, and the outer wall of the opening of the shrinkable garbage bag is provided with a buckle.

[0009] Furthermore, the lower edge of the shrinkable garbage bag opening is also provided with a trumpet-shaped extension that is integral with the shrinkable garbage bag opening.

[0010] Furthermore, the upper end of the connecting rod is rigidly connected to a connecting ball, and the lower end is rigidly connected to a connecting slot; Furthermore, the connecting ball is a spherical shape.

[0011] Furthermore, the connecting slot is a C-shaped slot adapted to the connecting ball.

[0012] This utility model provides a biosafety waste baling device, which consists of a garbage bag and a biosafety sterilization filter.

[0013] Furthermore, the biosafety waste packaging device includes multiple biosafety sterilization filters; The multiple biosafety sterilization filters are connected by connecting balls and connecting bayonets of different biosafety sterilization filters.

[0014] Furthermore, the biosafety waste packaging device includes two biosafety sterilization filters to form a double-layer packaging.

[0015] Compared with the prior art, the technical advantages of this utility model are as follows: The biosafety sterilization filter provided by this utility model utilizes the bottle cap principle. After the garbage bag mouth passes through the shrink-fit garbage bag bottle mouth, a high-temperature and high-pressure resistant filter cap seals the garbage bag mouth, allowing for safe compression of the garbage bag to release air and reduce its volume. Simultaneously, when using a conventional high-pressure sterilization container, it ensures that high-temperature steam can smoothly penetrate the filter cap and enter the garbage bag, achieving a better sterilization effect. When using a vacuum pulsed high-pressure sterilization device, it allows for vacuuming and high-temperature steam injection of the garbage bag without opening it before placement into the sterilization device, thus achieving a better sterilization effect while ensuring biosafety. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the high-temperature and high-pressure resistant filter cover and connecting rod provided in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the structure of the shrinkable garbage bag bottle opening provided in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the structure of the biosafety sterilization filter provided in Embodiment 1 of this utility model.

[0018] Icons: 1-High temperature and high pressure filter element cover; 11-High pressure filter element cover top; 12-High pressure filter element cover opening; 111-Connecting rotating ring; 2-Shrink garbage bag bottle opening; 21-External thread rotating thread; 22-Snap fastener; 23-Flare-shaped extension; 3-Connecting rod; 31-Connecting ball; 32-Connecting bayonet. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. 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. To help to better understand this utility model, specific embodiments will now be described in detail.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] According to one aspect of the present invention, a biosafety sterilization filter for high-temperature and high-pressure steam sterilization is provided, the biosafety sterilization filter comprising a high-temperature and high-pressure resistant filter element cover 1, a shrinkable garbage bag bottle mouth 2, and a connecting rod 3; The high-temperature and high-pressure filter element cover 1 includes an integrally formed high-pressure filter element cover top 11 and a high-pressure filter element cover opening 12. The inner side of the high-pressure filter element cover opening 12 is provided with an internal thread rotating thread; the outer side of the shrinkable garbage bag bottle opening 2 is provided with an external thread rotating thread 21 that cooperates with the internal thread rotating thread of the high-pressure filter element cover opening 12. A connecting rotating ring 111 is provided on the outer edge of the high-pressure filter element cover 11. The connecting ball rod 3 is a rod-shaped structure and is disposed through the connecting rotating ring 111. The connecting ball rod 3 is at a 90° angle to the high-pressure filter element cover 11.

[0023] This biosafety sterilization filter utilizes the bottle cap principle. After the garbage bag opening passes through the shrink-fit garbage bag bottle opening 2, a high-temperature and high-pressure resistant filter cap 1 seals the garbage bag opening. This allows for safe compression of the garbage bag to release air and reduce its volume. Simultaneously, when using a standard high-pressure sterilization container, it ensures that high-temperature steam can smoothly penetrate the filter cap and enter the garbage bag, achieving a better sterilization effect. When using a vacuum pulsed high-pressure sterilization device, the bag can be vacuumed and high-temperature steam injected smoothly within the sterilization device without needing to be opened before placement, achieving superior sterilization results while ensuring biosafety. Therefore, this biosafety sterilization filter can be widely used in high-temperature and high-pressure steam sterilization processes.

[0024] In a preferred embodiment of this utility model, the high-temperature and high-pressure filter cover 1 is a circular mesh structure, and a gas filter element is provided inside the high-temperature and high-pressure filter cover 1.

[0025] In a preferred embodiment, the gas filter element provided inside the high-temperature and high-pressure filter cover 1 is used to filter gas and achieve gas filtration.

[0026] In a preferred embodiment of this utility model, the shrinkable garbage bag opening 2 is closable, and the outer wall of the opening of the shrinkable garbage bag opening 2 is provided with a buckle 22.

[0027] As a preferred embodiment, the retractable garbage bag opening 2 allows the garbage bag to pass through more easily, and the buckle 22 provided on the retractable garbage bag opening 2 is used to fix the retractable garbage bag opening 2 after the garbage bag has passed through.

[0028] In a preferred embodiment of this utility model, the lower edge of the shrinkable garbage bag bottle mouth 2 is also provided with a trumpet-shaped extension 23 that is integral with the shrinkable garbage bag bottle mouth 2.

[0029] As a preferred embodiment, the flared extension 23, which is integrally structured with the shrinkable garbage bag opening 2, is used to transition the spherical garbage bag into the shrinkable garbage bag opening 2.

[0030] In a preferred embodiment of this utility model, the upper end of the connecting rod 3 is rigidly connected to a connecting ball 31, and the lower end is rigidly connected to a connecting slot 32. In a preferred embodiment of this utility model, the connecting ball 31 is a spherical body, and the connecting slot 32 is a C-shaped groove adapted to the connecting ball 31.

[0031] In a preferred embodiment, the present invention sets the connecting bayonet 32 ​​as a C-shaped slot that is compatible with the connecting ball 31, so that different biosafety sterilization filters of the present invention can be connected together through the connecting bayonet 32 ​​and the connecting ball 31, thereby realizing multi-layer packaging of the biosafety sterilization filters of the present invention.

[0032] According to one aspect of the present invention, a biosafety waste baling device is provided, the biosafety waste baling device comprising a garbage bag and a biosafety sterilization filter.

[0033] This utility model of a biosafety waste baling device consists of a garbage bag and a biosafety sterilization filter. This biosafety waste baling device is suitable for baling different types of waste, such as protective clothing, biosafety cabinet waste (gloves, absorbent pads), mouse cages, container waste (centrifuge tubes, cell bottles, sharps containers), mouse cages, and container waste.

[0034] In a preferred embodiment of this utility model, the biosafety waste packaging device includes multiple biosafety sterilization filters, which are connected by connecting balls 31 and connecting slots 32 of different biosafety sterilization filters.

[0035] In a preferred embodiment of this invention, the biosafety waste packaging device includes two biosafety sterilization filters to form a double-layer packaging.

[0036] As a preferred embodiment, the high-temperature and high-pressure biosafety filter adopts a double-layer packaging form. The high-temperature and high-pressure filter element covers 1 of the two different biosafety sterilization filters are connected to each other through the connecting ball 31 and the connecting slot 32, which is more conducive to the penetration of sterilization steam. The normal sterilization procedure can effectively sterilize all kinds of waste with different packaging layers.

[0037] The technical solution of this utility model will be further described below with reference to the embodiments.

[0038] Example 1 Figure 1 This is a schematic diagram of the high-temperature and high-pressure filter cover 1 and the connecting rod 3 provided in this embodiment.

[0039] Figure 2 This is a schematic diagram of the structure of the shrinkable garbage bag bottle opening 2 provided in this embodiment.

[0040] Figure 3 This is a schematic diagram of the structure of the biosafety sterilization filter provided in this embodiment.

[0041] A biosafety sterilization filter for high-temperature and high-pressure steam sterilization, the biosafety sterilization filter comprising a high-temperature and high-pressure resistant filter cartridge cover 1, a shrinkable garbage bag bottle mouth 2, and a connecting rod 3; See Figure 1 and Figure 2 The high-temperature and high-pressure filter element cover 1 includes an integrally formed high-pressure filter element cover top 11 and a high-pressure filter element cover opening 12. The inner side of the high-pressure filter element cover opening 12 is provided with an internal thread rotating thread; the outer side of the shrinkable garbage bag bottle opening 2 is provided with an external thread rotating thread 21 that cooperates with the internal thread rotating thread of the high-pressure filter element cover opening 12. See Figure 1 The outer edge of the high-pressure filter element cover 11 is provided with a connecting rotating ring 111. The connecting ball rod 3 is a rod-shaped structure and is disposed through the connecting rotating ring 111. The connecting ball rod 3 is at a 90° angle to the high-pressure filter element cover 11.

[0042] The biosafety sterilization filter provided in this embodiment for high-temperature and high-pressure steam sterilization utilizes the bottle cap principle. After the garbage bag opening passes through the shrink-fit garbage bag bottle opening 2, the high-temperature and high-pressure resistant filter cap 1 seals the garbage bag opening. This allows for safe compression of the garbage bag to release air and reduce its volume. Simultaneously, when using a conventional high-pressure sterilization container, it ensures that high-temperature steam can smoothly penetrate the filter cap and enter the garbage bag, achieving a better sterilization effect. When using a vacuum pulsed high-pressure sterilization device, it allows for vacuuming and high-temperature steam injection of the garbage bag without opening it before placing it into the sterilization device, achieving a better sterilization effect while ensuring biosafety.

[0043] In the optional technical solution of this embodiment, the high temperature and high pressure filter cover 1 is a circular mesh structure, and a gas filter element is provided inside the high temperature and high pressure filter cover 1. The gas filter element is used to filter gas and realize the filtration of gas.

[0044] In the optional technical solution of this embodiment, the shrinkable garbage bag opening 2 is closable, and a buckle 22 is provided on the outer wall of the opening / closing part of the shrinkable garbage bag opening 2. In this embodiment, the shrinkable garbage bag opening 2 that is closable allows the garbage bag to pass through more easily, and the buckle 22 provided on the shrinkable garbage bag opening 2 is used to fix the shrinkable garbage bag opening 2 after the garbage bag has passed through.

[0045] In the optional technical solution of this embodiment, the lower edge of the shrinkable garbage bag bottle mouth 2 is also provided with a trumpet-shaped extension 23 that is integral with the shrinkable garbage bag bottle mouth 2, which is used to transition the garbage bag into the shrinkable garbage bag bottle mouth 2.

[0046] In the optional technical solution of this embodiment, the upper end of the connecting rod 3 is rigidly connected to a connecting ball 31, and the lower end is rigidly connected to a connecting slot 32; wherein, the connecting ball 31 is a spherical body, and the connecting slot 32 is a C-shaped groove adapted to the connecting ball 31.

[0047] It should be noted that during the multi-layer packaging process, the C-shaped slot of one biosafety sterilization filter of this invention can be connected to the connecting ball 31 of another biosafety sterilization filter, so that two or more of the devices are connected on a vertical line.

[0048] For example, biosafety sterilization filters A and B are packaged in multiple layers. After biosafety sterilization filter A is used, its connecting clip 31 is passed through the shrink-fit garbage bag opening 2 of biosafety sterilization filter B, and then the connecting clip 31 of biosafety sterilization filter A is connected to the connecting clip 32 of biosafety sterilization filter B. The connection between the connecting clip 31 of biosafety sterilization filter A and the connecting clip 32 of biosafety sterilization filter B is unobstructed.

[0049] For details, please refer to the following packaging method in this embodiment. The packaging method for the biosafety sterilization filter in this embodiment is as follows: Take a biosafety sterilization filter and denote it as biosafety sterilization filter A.

[0050] First, open the retractable garbage bag opening 2 of the biosafety sterilization filter A. After tying the inner garbage bag opening, insert it into the retractable garbage bag opening 2 through the trumpet-shaped extension 23 at the lower edge of the retractable garbage bag opening 2. Then, fasten the high-temperature and high-pressure filter element cover 1 onto the retractable garbage bag opening 2, turn the garbage bag outward and press it tightly against the outer wall of the retractable garbage bag opening 2. Then, use the rotating threads provided on the inner side of the high-pressure filter element cover opening 12 and the outer side of the retractable garbage bag opening 2 to tighten the high-temperature and high-pressure filter element cover 1 and the retractable garbage bag opening 2, thus completing the single-layer packaging of the biosafety sterilization filter in this embodiment.

[0051] Furthermore, repeat the above steps on the outer garbage bag to complete the double-layer packaging. Specifically: Based on the above single-layer packaging, another biosafety sterilization filter is taken and denoted as biosafety sterilization filter B.

[0052] (i) Place the inner garbage bag of the above-mentioned single-layer packaged biosafety sterilization filter A into the shrink garbage bag bottle mouth 2 along the trumpet-shaped outer extension 23 of the biosafety sterilization filter B; then put the high temperature and high pressure filter element cap 1 of the biosafety sterilization filter B on the shrink garbage bag bottle mouth 2, turn the garbage bag outward and stick it tightly to the outer wall of the shrink garbage bag bottle mouth 2; at this time, the rotating threads set on the inner side of the high pressure filter element cap 12 of the biosafety sterilization filter B and the outer side of the shrink garbage bag bottle mouth 2 are not tightened; (ii) Connect the connecting ball 31 of the biosafety sterilization filter A to the connecting slot 32 of the biosafety sterilization filter B, and keep the two devices on a vertical line; then tighten the rotating threads on the inside of the high-pressure filter cap 12 of the biosafety sterilization filter B and the outside of the shrink garbage bag bottle 2 to complete the double-layer packaging.

[0053] Example 2: Conventional Autoclaving The biosafety waste packaging bags, which were double-packaged using a biosafety sterilization filter in Example 1, were then subjected to ordinary autoclaving. The specific sterilization method is as follows: 1. Place the packaged waste into an autoclave, with the biosafety sterilization filter facing upwards.

[0054] 2. Place the waste into a standard autoclave and run the sterilization program for sterilization.

[0055] Sterilization effect evaluation: After using the biosafety sterilization filter of Example 1 of this application, the air inside the garbage bag expands due to heat, and the cooler air inside the bag can be effectively discharged from the biosafety sterilization filter, increasing heat transfer efficiency, shortening sterilization time, and ensuring sterilization effect. In contrast, with ordinary packaging methods (without using the biosafety sterilization filter of this application), the air inside the garbage bag reduces heat transfer efficiency, thus prolonging sterilization time and affecting sterilization effect.

[0056] Example 3: Pulsating Vacuum Autoclaving The biosafety waste packaging bags, which were double-packaged using a biosafety sterilization filter in Example 1, were then subjected to vacuum pulsed autoclaving. The specific sterilization method is as follows: 1. Place the packaged waste into a pulsed vacuum autoclave (no other operation required).

[0057] 2. Run the sterilization procedure to sterilize.

[0058] Sterilization effect evaluation: After using the biosafety sterilization filter of Example 1 of this application, the air inside the packaging bag is rapidly discharged during the pulsed vacuum program of the sterilization cabinet, reducing the number of pulsed vacuum cycles and improving sterilization efficiency. Without this device, the pulsed vacuum program needs to run completely at least twice to discharge the air from the packaging bag, resulting in a longer overall sterilization time.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A biosafety sterilization filter, characterized in that, The biosafety sterilization filter includes a high-temperature and high-pressure resistant filter cartridge cap (1), a shrinkable garbage bag bottle mouth (2), and a connecting rod (3). The high-temperature and high-pressure filter cartridge cover (1) includes an integrally formed high-pressure filter cartridge cover top (11) and a high-pressure filter cartridge cover opening (12). The inner side of the high-pressure filter cartridge cover opening (12) is provided with an internal thread rotating thread; the outer side of the shrinkable garbage bag bottle opening (2) is provided with an external thread rotating thread (21) that cooperates with the internal thread rotating thread of the high-pressure filter cartridge cover opening (12). A connecting rotating ring (111) is provided on the outer edge of the high pressure filter cover (11). The connecting ball rod (3) is a rod-shaped structure. The connecting ball rod (3) is inserted through the connecting rotating ring (111). The connecting ball rod (3) is perpendicular to the high pressure filter cover (11) at 90°.

2. The biosafety sterilization filter according to claim 1, characterized in that, The high-temperature and high-pressure filter cover (1) has a circular mesh structure, and a gas filter element is provided inside the high-temperature and high-pressure filter cover (1).

3. The biosafety sterilization filter according to claim 1, characterized in that, The shrinkable garbage bag opening (2) is designed to be openable and closable, and the outer wall of the opening and closing part of the shrinkable garbage bag opening (2) is provided with a buckle (22).

4. The biosafety sterilization filter according to claim 1, characterized in that, The lower edge of the shrinkable garbage bag bottle mouth (2) is also provided with a trumpet-shaped extension (23) that is integral with the shrinkable garbage bag bottle mouth (2).

5. The biosafety sterilization filter according to claim 1, characterized in that, The upper end of the connecting rod (3) is rigidly connected to a connecting ball (31), and the lower end is rigidly connected to a connecting slot (32).

6. The biosafety sterilization filter according to claim 5, characterized in that, The connecting ball (31) is a spherical shape.

7. The biosafety sterilization filter according to claim 6, characterized in that, The connecting slot (32) is a C-shaped slot that is adapted to the connecting ball (31).

8. A biosafety-grade waste packaging device, characterized in that, The biosafety waste packaging device includes garbage bags and a biosafety sterilization filter as described in any one of claims 1 to 7.

9. The biosafety waste packaging device according to claim 8, characterized in that, The biosafety waste packaging device includes multiple biosafety sterilization filters; The plurality of biosafety sterilization filters are connected by connecting balls (31) and connecting bayonets (32) of different biosafety sterilization filters.

10. The biosafety waste packaging device according to claim 8, characterized in that, The biosafety waste packaging device includes two biosafety sterilization filters to form a double-layer packaging.

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