Self-contained biological indicator structure

Abstract

The utility model discloses a self-contained biological indicator structure which comprises a cylinder body, a spore carrier is placed at the bottom of an inner cavity of the cylinder body, a second through hole is formed in the upper end of the cylinder body, and a puncture needle is fixedly connected to the lower end of the left side of the inner cavity of the cylinder body. And a threaded seat is fixedly connected to the upper end of the outer surface of the barrel and located below the second through hole. Through the arrangement of the first through hole and the second through hole, the environment in the cylinder body can be communicated with the environment in sterilization equipment in the sterilization operation process, so that a spore carrier in the cylinder body can be conveniently sterilized, and meanwhile, through the arrangement of the threaded seat, the clamping hole, the clamping convex block, the plastic baffle ring and the plastic connecting strip, the spore carrier can be conveniently sterilized. The protective cover can be effectively supported and limited, the protective cover is prevented from loosening from the top of the barrel, and meanwhile, the protective cover can be effectively prevented from rotating along the thread on the surface of the threaded seat, and dislocation between the first through hole and the second through hole is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of biological indicators, in particular to a self-contained biological indicator structure. Background Art

[0002] Self-contained biological indicators are a special type of live microbial products, mainly used to confirm the performance of sterilization equipment, verify sterilization procedures and monitor the sterilization effect of the production process. Self-contained biological indicators usually contain spores and culture fluid, and can survive and grow under specific sterilization conditions, thereby evaluating the sterilization effect.

[0003] Current self-contained biological indicators typically require personnel to use tools such as clamps to crush the inner glass ampoule from the outside to allow the culture fluid to mix with the spores. However, improper force control when using clamps can easily cause the outer packaging to crack, causing the culture fluid inside to leak out, thereby affecting the normal progress of subsequent work. Utility Model Content

[0004] The purpose of the utility model is to provide a self-contained biological indicator structure, which has the advantages of facilitating personnel to mix the culture solution and spores, effectively improving the overall sealing during the culture process, and avoiding contamination from the external environment that affects the overall operation accuracy.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-contained biological indicator structure, comprising a cylinder, a spore carrier is placed at the bottom of the inner cavity of the cylinder, a second through hole is provided at the upper end of the cylinder, a puncture needle is fixedly connected to the lower end of the left side of the inner cavity of the cylinder, a threaded seat is fixedly connected to the upper end of the outer surface of the cylinder and located below the second through hole, snap-fit holes are provided around the lower end of the threaded seat, a protective cover is threadedly connected to the upper end of the threaded seat, a first through hole is provided at the middle end of the protective cover, and a plastic cap is fixedly connected to the lower end of the outer surface of the protective cover. The material connecting strip is fixedly connected to the surface of the plastic connecting strip with a plastic baffle, and the surface of the plastic baffle is movably connected to the surface of the threaded seat. The four sides of the lower end of the plastic baffle are fixedly connected with snap-fitting protrusions, and the surface of the snap-fitting protrusions is movably connected to the surface of the snap-fitting hole. The top of the inner cavity of the protective cover is fixedly connected to the culture fluid holding cylinder, and the lower end of the outer surface of the culture fluid holding cylinder is fixedly connected to an annular clamping seat. A silicone sealing plug is fixedly connected between the bottom of the inner cavity of the annular clamping seat and the bottom of the culture fluid holding cylinder, and pre-cut grooves are provided on both sides of the silicone sealing plug.

[0006] As a preferred solution, a first sealing gasket is fixedly connected to the top of the cylinder, a second sealing gasket is fixedly connected to the upper end of the outer surface of the cylinder and above the threaded seat, and the inner cavity of the protective cover is movably connected to the surface of the second sealing gasket.

[0007] As a preferred solution, a connecting belt is fixedly connected to the top of the silicone sealing plug, and the number of the connecting belts is three.

[0008] As a preferred solution, a rubber sleeve is provided on the lower end of the outer surface of the cylinder, and suction cups are fixedly connected to the four sides of the bottom of the outer surface of the rubber sleeve.

[0009] As a preferred solution, a pulling piece is fixedly connected to the front surface of the plastic retaining ring, and a pulling hole is provided at the middle end of the pulling piece.

[0010] As a preferred solution, the middle end of the spore carrier is movably connected to a limit stop column, and the bottom of the limit stop column is fixedly connected to the middle end of the bottom of the cylinder cavity.

[0011] As a preferred solution, a label is attached to the middle end of the outer surface of the cylinder.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model can connect the environment inside the cylinder with the environment in the sterilization equipment during the sterilization operation through the provision of the first through hole and the second through hole, so as to facilitate the sterilization operation of the spore carrier inside the cylinder. At the same time, the provision of the threaded seat, the snap-fit hole, the snap-fit protrusion, the plastic retaining ring and the plastic connecting strip can effectively support and limit the protective cover, thereby preventing the protective cover from loosening from the top of the cylinder and effectively preventing the protective cover from rotating along the threaded portion of the threaded seat surface and causing misalignment between the first through hole and the second through hole, thereby ensuring the connectivity between the first through hole and the second through hole. At the same time, the protective cover can be released from its limit by tearing off the plastic retaining ring, the plastic connecting strip and the snap-fit hole. Subsequently, during the process of the protective cover rotating and moving downward along the threads on the surface of the threaded seat, the first through hole and the second through hole can be staggered, so that the internal environment of the cylinder can be effectively sealed to prevent the external environment from polluting the internal environment of the cylinder. At the same time, during the process of the protective cover rotating and moving, the culture fluid holding cylinder, the annular clamping seat and the silicone sealing plug can be driven to move downward, so that the puncture needle can cut and detach the middle area of the silicone sealing plug through the pre-cut groove, so that the culture fluid inside the culture fluid holding cylinder can flow to the bottom of the cylinder and can be mixed with the spore carrier, so that personnel can evaluate the sterilization effect of the sterilization equipment according to the survival and growth of spores after the spore carrier and the culture fluid are mixed.

[0014] 2. The utility model, through the provision of the first sealing gasket and the second sealing gasket, can effectively seal between the top of the cylinder and the protective cover, as well as between the second through hole and the protective cover during the downward movement of the protective cover, effectively reducing the impact of the external environment on the internal environment of the cylinder; through the provision of the connecting belt, the separated areas can be connected when the silicone sealing plug is scratched by the puncture needle, preventing the scratched area of the silicone sealing plug from falling to the top of the spore carrier and causing certain obstruction; through the provision of the rubber sleeve and the suction cup, it is convenient for personnel to adsorb and fix the cylinder during placement, preventing the cylinder from tipping over during use; through the provision of the pulling member and the pulling hole, it is convenient for personnel to pull the plastic retaining ring so that the plastic retaining ring and the plastic connecting strip can be torn off from the surface of the protective cover; through the provision of the limiting stop column, the spore carrier can be effectively limited, preventing the spore carrier from shifting due to shaking during placement; through the provision of the label, it is convenient for personnel to mark information during the experimental operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a front cross-sectional structural diagram of the utility model;

[0017] Figure 3 For this utility model Figure 2 A local enlarged view of point A in FIG;

[0018] Figure 4 This is a schematic diagram of the cylinder structure of the utility model.

[0019] In the figure: 1. Cylinder body; 2. Rubber sleeve; 3. Suction cup; 4. Label; 5. Plastic retaining ring; 6. First through hole; 7. Protective cover; 8. Piercing needle; 9. Spore carrier; 10. Limiting column; 11. Silicone sealing plug; 12. Annular clamping seat; 13. Connecting belt; 14. Culture medium holding cylinder; 15. Second through hole; 16. Plastic connecting strip; 17. Snap-fitting protrusion; 18. Snap-fitting hole; 19. Threaded seat; 20. Pulling piece; 21. First sealing gasket; 22. Second sealing gasket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] Example 1:

[0023] See also Figure 1-Figure 4 As shown, the utility model provides a self-contained biological indicator structure, including a cylinder 1, a spore carrier 9 is placed at the bottom of the inner cavity of the cylinder 1, a second through hole 15 is opened at the upper end of the cylinder 1, a puncture needle 8 is fixedly connected to the lower end of the left side of the inner cavity of the cylinder 1, and a threaded seat 19 is fixedly connected to the upper end of the outer surface of the cylinder 1 and located below the second through hole 15. The lower end of the threaded seat 19 is provided with a snap-fit hole 18 around the bottom, and the upper end of the threaded seat 19 is threadedly connected to a protective cover 7. The middle end of the protective cover 7 is provided with a first through hole 6. The lower end of the outer surface of the protective cover 7 is fixedly connected to a plastic connecting strip 16. The plastic The surface of the connecting strip 16 is fixedly connected to a plastic retaining ring 5, and the surface of the plastic retaining ring 5 is movably connected to the surface of the threaded seat 19. The four sides of the lower end of the plastic retaining ring 5 are fixedly connected with snap-fit protrusions 17, and the surface of the snap-fit protrusions 17 is movably connected to the surface of the snap-fit hole 18. The top of the inner cavity of the protective cover 7 is fixedly connected to the culture fluid holding cylinder 14, and the lower end of the outer surface of the culture fluid holding cylinder 14 is fixedly connected to an annular clamping seat 12. A silicone sealing plug 11 is fixedly connected between the bottom of the inner cavity of the annular clamping seat 12 and the bottom of the culture fluid holding cylinder 14, and pre-cut grooves are provided on both sides of the silicone sealing plug 11.

[0024] In the present technical solution, by setting the first through hole 6 and the second through hole 15, the environment inside the cylinder 1 can be connected with the environment in the sterilization equipment during the sterilization operation, so as to facilitate the sterilization operation of the spore carrier 9 inside the cylinder 1. At the same time, by setting the threaded seat 19, the snap-in hole 18, the snap-in protrusion 17, the plastic retaining ring 5 and the plastic connecting strip 16, the protective cover 7 can be effectively supported and limited, and the protective cover 7 can be prevented from loosening from the top of the cylinder 1. At the same time, it can effectively prevent the protective cover 7 from rotating along the threaded part of the surface of the threaded seat 19 and causing misalignment between the first through hole 6 and the second through hole 15, thereby ensuring the connectivity between the first through hole 6 and the second through hole 15. At the same time, by tearing off the plastic retaining ring 5, the plastic connecting strip 16 and the snap-in hole 18, the protective cover 7 can be removed. The limit is released, and then in the process of the protective cover 7 rotating and moving downward along the threads on the surface of the threaded seat 19, the first through hole 6 and the second through hole 15 can be staggered, so that the internal environment of the cylinder 1 is effectively sealed to prevent the external environment from polluting the internal environment of the cylinder 1. At the same time, in the process of the protective cover 7 rotating and moving, the culture liquid holding cylinder 14, the annular clamping seat 12 and the silicone sealing plug 11 can be driven to move downward, so that the puncture needle 8 can cut and detach the middle area of the silicone sealing plug 11 through the pre-cut groove, so that the culture liquid inside the culture liquid holding cylinder 14 can flow to the bottom of the cylinder 1 and can be mixed with the spore carrier 9, so that personnel can evaluate the sterilization effect of the sterilization equipment according to the survival and growth of spores after mixing between the spore carrier 9 and the culture liquid.

[0025] Example 2:

[0026] On the basis of embodiment 1, the present invention is as follows Figure 1-Figure 4 As shown, it is disclosed that a first sealing gasket 21 is fixedly connected to the top of the cylinder 1, a second sealing gasket 22 is fixedly connected to the upper end of the outer surface of the cylinder 1 and located above the threaded seat 19, the inner cavity of the protective cover 7 is movably connected to the surface of the second sealing gasket 22, the top of the silicone sealing plug 11 is fixedly connected to a connecting belt 13, the number of connecting belts 13 is three, the lower end of the outer surface of the cylinder 1 is sleeved with a rubber sleeve 2, the four sides of the bottom of the outer surface of the rubber sleeve 2 are fixedly connected with a suction cup 3, the front surface of the plastic retaining ring 5 is fixedly connected to a pulling piece 20, the middle end of the pulling piece 20 is provided with a pulling hole, the middle end of the spore carrier 9 is movably connected to a limiting stop column 10, the bottom of the limiting stop column 10 is fixedly connected to the middle end of the bottom of the inner cavity of the cylinder 1, and a label 4 is pasted on the middle end of the outer surface of the cylinder 1.

[0027] In the present technical solution, by setting the first sealing gasket 21 and the second sealing gasket 22, it is possible to effectively seal between the top of the cylinder 1 and the protective cover 7 and between the periphery of the second through hole 15 and the protective cover 7 during the downward movement of the protective cover 7, thereby effectively reducing the influence of the external environment on the internal environment of the cylinder 1. By setting the connecting belt 13, it is possible to connect the scratched and separated areas during the process of the silicone sealing plug 11 being scratched by the puncture needle 8, thereby preventing the scratched area of the silicone sealing plug 11 from falling to the top of the spore carrier 9 and causing a certain degree of obstruction. The provision of the rubber sleeve 2 and the suction cup 3 facilitates personnel to adsorb and fix the cylinder 1 during placement, thereby preventing the cylinder 1 from tipping over during use. The provision of the pulling member 20 and the pulling hole facilitates personnel to pull the plastic retaining ring 5 so that the plastic retaining ring 5 and the plastic connecting strip 16 can be torn off from the surface of the protective cover 7. The provision of the limiting retaining column 10 effectively limits the spore carrier 9, thereby preventing the spore carrier 9 from shifting due to shaking during placement. The provision of the label 4 facilitates personnel to mark information during the experimental operation.

[0028] The working principle of the present utility model is as follows: through the setting of the first through hole 6 and the second through hole 15, the environment inside the cylinder 1 can be connected with the environment in the sterilization equipment during the sterilization operation, so as to facilitate the sterilization operation of the spore carrier 9 inside the cylinder 1. At the same time, through the setting of the threaded seat 19, the snap-fit hole 18, the snap-fit protrusion 17, the plastic retaining ring 5 and the plastic connecting strip 16, the protective cover 7 can be effectively supported and limited, and the protective cover 7 can be prevented from loosening from the top of the cylinder 1. At the same time, it can effectively prevent the protective cover 7 from rotating along the threaded part of the threaded seat 19 surface and causing misalignment between the first through hole 6 and the second through hole 15, thereby ensuring the connectivity between the first through hole 6 and the second through hole 15. When the sterilization operation is completed and the culture liquid inside the culture liquid holding cylinder 14 needs to be mixed with the spore carrier 9, the plastic retaining ring 5 is disconnected from the plastic connecting strip 16 by pulling, and the snap-fit protrusion 17 can be removed from the snap-fit hole 18. The surface is detached, and the limit of the protective cover 7 can be released. Subsequently, the protective cover 7 is operated to rotate and move downward along the threaded part of the threaded seat 19 surface, so that the first through hole 6 and the second through hole 15 can be staggered, so that the internal environment of the cylinder 1 is effectively sealed, and the external environment is prevented from polluting the internal environment of the cylinder 1. At the same time, during the rotation and movement of the protective cover 7, the culture liquid holding cylinder 14, the annular clamping seat 12 and the silicone sealing plug 11 can be driven to move downward, so that the pre-cut groove at the bottom of the silicone sealing plug 11 can contact the puncture needle 8, and the puncture needle 8 can cut and detach the middle area of the silicone sealing plug 11 through the pre-cut groove, so that the culture liquid inside the culture liquid holding cylinder 14 can flow to the bottom of the cylinder 1 and can be mixed with the spore carrier 9, which is convenient for personnel to evaluate the sterilization effect of the sterilization equipment according to the survival and growth of spores after mixing between the spore carrier 9 and the culture liquid.

[0029] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0030] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0031] 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 the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A self-contained biological indicator structure, comprising a barrel (1), characterized in that: A spore carrier (9) is placed at the bottom of the inner cavity of the cylinder (1), a second through hole (15) is provided at the upper end of the cylinder (1), a puncture needle (8) is fixedly connected to the lower end of the left side of the inner cavity of the cylinder (1), a threaded seat (19) is fixedly connected to the upper end of the outer surface of the cylinder (1) and located below the second through hole (15), a clamping hole (18) is provided around the lower end of the threaded seat (19), a protective cover (7) is threadedly connected to the upper end of the threaded seat (19), a first through hole (6) is provided at the middle end of the protective cover (7), a plastic connecting strip (16) is fixedly connected to the lower end of the outer surface of the protective cover (7), and the surface of the plastic connecting strip (16) is fixedly connected to the upper end of the outer surface of the protective cover (7). A plastic retaining ring (5) is connected, the surface of the plastic retaining ring (5) is movably connected to the surface of the threaded seat (19), the four sides of the lower end of the plastic retaining ring (5) are fixedly connected with snap-fit protrusions (17), the surface of the snap-fit protrusions (17) are movably connected to the surface of the snap-fit hole (18), the top of the inner cavity of the protective cover (7) is fixedly connected with a culture medium holding cylinder (14), the lower end of the outer surface of the culture medium holding cylinder (14) is fixedly connected with an annular clamping seat (12), the bottom of the inner cavity of the annular clamping seat (12) and the bottom of the culture medium holding cylinder (14) are fixedly connected with a silicone sealing plug (11), and both sides of the silicone sealing plug (11) are provided with pre-cut grooves.

2. A self-contained biological indicator structure according to claim 1, characterized in that: A first sealing gasket (21) is fixedly connected to the top of the cylinder (1), a second sealing gasket (22) is fixedly connected to the upper end of the outer surface of the cylinder (1) and located above the threaded seat (19), and the inner cavity of the protective cover (7) is movably connected to the surface of the second sealing gasket (22).

3. The self-contained biological indicator structure according to claim 1, characterized in that: The top of the silicone sealing plug (11) is fixedly connected with a connecting belt (13), and the number of the connecting belts (13) is three.

4. The self-contained biological indicator structure according to claim 1, characterized in that: The lower end of the outer surface of the cylinder (1) is sleeved with a rubber sleeve (2), and suction cups (3) are fixedly connected to the four sides of the bottom of the outer surface of the rubber sleeve (2).

5. The self-contained biological indicator structure according to claim 1, characterized in that: A pulling piece (20) is fixedly connected to the front surface of the plastic retaining ring (5), and a pulling hole is provided at the middle end of the pulling piece (20).

6. The self-contained biological indicator structure according to claim 1, characterized in that: The middle end of the spore carrier (9) is movably connected to a limit stop column (10), and the bottom of the limit stop column (10) is fixedly connected to the middle end of the bottom of the inner cavity of the cylinder (1).

7. The self-contained biological indicator structure according to claim 1, characterized in that: A label (4) is attached to the middle end of the outer surface of the cylinder (1).

Images