Sterile sampling and material transfer device

Abstract

The utility model relates to material sampling and transfer device technical field, concretely relates to aseptic sampling and material transfer device, including the placement cylinder body, the placement cylinder body central position is equipped with the accommodating groove, the accommodating groove is placed with aseptic sampling mechanism, the aseptic sampling mechanism includes piston cylinder, the piston cylinder inside slide connection has pull rod, and one end of pull rod is equipped with rubber plug, the rubber plug is attached with piston cylinder inner wall, one end of piston cylinder is equipped with sampling port, and one end of piston cylinder away from sampling port is equipped with the anti -drop piece that prevents pull rod and drops out. The utility model discloses through with aseptic sampling device and material transfer device integrated design, solved the problem of the prior art split device cumbersome operation. The negative pressure sampling mechanism of piston cylinder and pull rod constitute can be directly received in the accommodating groove of the placement cylinder body, realizes the integrated operation of sampling, sterilization, partial packing, significantly improves the operation efficiency and reduces the cross -contamination risk.

Description

Technical Field

[0001] This utility model relates to the technical field of material sampling and transfer devices, specifically to a sterile sampling and material transfer device. Background Technology

[0002] Existing material transfer devices generally suffer from complex structures and cumbersome operations, making it difficult for workers to quickly open and close the devices, thus affecting transfer efficiency. Furthermore, the devices lack sufficient sealing, especially when transferring materials requiring a sterile environment, allowing bacteria to easily enter the interior through the interfaces, leading to material contamination. In addition, existing devices lack effective sterilization measures for the internal cavity, failing to continuously inhibit bacterial growth during transfer and increasing the risk of material spoilage. These problems make existing devices unable to meet high-standard aseptic transfer requirements, necessitating a solution that combines convenient operation, high sealing performance, and active sterilization capabilities.

[0003] Chinese Patent Publication No. CN217436375U discloses a novel aseptic material transfer device. First, the material to be transferred is placed in a double-layered glass liner. A vacuum layer between the liner isolates the material from external temperature changes, maintaining a constant temperature to reduce bacterial growth. During sealing, a rotating lever drives a locking assembly, causing the insert to embed into a slot at the top of the liner. A spring then returns to its original position and locks the device in place. Simultaneously, a rubber ring is pressed into an annular groove in the liner, forming a double-sealed structure to ensure complete closure at the interface. During sterilization, ultraviolet lamps on the inner wall of the liner continuously sterilize the external space of the material, while a microwave generator at the bottom of the sealing cap emits microwaves into the pores inside the liner, achieving multi-directional sterilization. During transfer, a handle-driven movement device and a built-in battery power the sterilization equipment, ensuring the material remains in a constant-temperature, sealed, and sterile environment throughout the transfer process. Through the synergistic effect of mechanical locking, physical sealing, and active sterilization technology, the device effectively overcomes the shortcomings of traditional devices in terms of operational efficiency, sealing, and sterilization capability. However, the device does not integrate a sampling mechanism, so a separate sampling mechanism needs to be found each time it is used, which increases the complexity of operation.

[0004] To address the aforementioned problems, this invention provides a sterile sampling and material transfer device. Utility Model Content

[0005] To address the aforementioned issues, an integrated device for aseptic sampling and material transfer is provided. By integrating the aseptic sampling mechanism with the placement cylinder body, a sliding seal structure is formed by a pull rod linked to a rubber stopper inside the piston cylinder. When pulled outward, negative pressure is generated to automatically draw in the sample. An anti-detachment block precisely limits the pull rod's stroke to prevent it from detaching. At the same time, medical-grade corrosion-resistant materials and a sealing lip structure are used, solving the problem of increased operational complexity caused by the lack of a sampling mechanism in traditional transfer devices.

[0006] To address the problems of existing technologies, this utility model provides a sterile sampling device, including a placement cylinder body. A receiving groove is provided at the center of the placement cylinder body, and a sterile sampling mechanism is placed in the receiving groove. The sterile sampling mechanism includes a piston cylinder, and a pull rod is slidably connected inside the piston cylinder. One end of the pull rod is provided with a rubber stopper, which is in contact with the inner wall of the piston cylinder. A sampling port is provided at one end of the piston cylinder, and an anti-detachment block is provided at the end of the piston cylinder away from the sampling port to prevent the pull rod from detaching.

[0007] A material transfer device includes a sterile sampling device. The placement cylinder body has a placement groove, and a sterilization component is placed in the placement groove. The sterilization component includes a placement base adapted to the placement groove. The receiving groove is located at the center of the placement base. The placement base has a plurality of installation grooves at equal angles away from the center. A glass container is installed in the installation groove. An ultraviolet sterilizer is provided between the glass container and the installation groove.

[0008] Preferably, the glass container has a double-layered glass structure.

[0009] Preferably, the glass container is provided with a sealing plug on its top cover.

[0010] Preferably, the bottom of the placement base is provided with a first electrical connection block, and the bottom of the placement groove is provided with a second electrical connection block. When the placement base is installed in the placement groove, the first electrical connection block is inserted into the second electrical connection block and the two are electrically connected. A battery is installed at the bottom of the placement cylinder body.

[0011] Preferably, the placement cylinder body is provided with an annular sealing block, and a cover is provided on the placement cylinder body. The cover has a sealing slot adapted to the annular sealing block. When the cover is placed on the placement cylinder body, the annular sealing block is inserted into the sealing slot.

[0012] Preferably, a locking mechanism is provided between the placement cylinder body and the cover body. The locking mechanism includes a locking block provided on the placement cylinder body, a locking slot adapted to the locking block provided on the cover body, a positioning insertion hole provided on the locking block, and a positioning insertion block slidably connected in the locking slot.

[0013] Preferably, the locking slot is provided with a guide rod, the positioning block is provided with a guide groove, and a reset spring is sleeved on the guide rod.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. This utility model integrates the aseptic sampling device with the material transfer device, solving the problem of cumbersome operation of separate devices in the prior art. The negative pressure sampling mechanism composed of the piston cylinder and the pull rod can be directly housed in the receiving groove of the cylinder body. Combined with the UV sterilization glass container mounting grooves distributed at equal angles, it realizes integrated operation of sampling, sterilization and dispensing, significantly improving operational efficiency and reducing the risk of cross-contamination.

[0016] 2. This utility model adopts a circumferential arrangement of ultraviolet sterilizer and a double-layer glass container design. While ensuring sterilization uniformity, it isolates external temperature interference through vacuum or inert gas interlayer. Combined with the multi-seal structure of labyrinth-type sealing plug, it not only meets the requirements of efficient sterilization, but also maintains the physical stability and biological safety of the sample. It is suitable for temperature-sensitive material transfer scenarios.

[0017] 3. This utility model optimizes the reliability and sealing of the equipment through a modular electrical connection system and a mechanical locking mechanism. The plug-in electrical connection block enables plug-and-play power supply, and the waterproof sealing design avoids the risk of short circuits; the mechanical interlocking structure of the annular sealing block and the locking mechanism ensures the overall airtightness of the device, and the hard anodized guide rod and the return spring work together to make the opening and closing operation smooth and durable, meeting the high-frequency use requirements in a sterile environment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the aseptic sampling mechanism of the aseptic sampling and material transfer device of this utility model.

[0019] Figure 2 This is an exploded view of the aseptic sampling mechanism of the aseptic sampling and material transfer device of this utility model.

[0020] Figure 3 This is a three-dimensional schematic diagram of the aseptic sampling and material transfer device of this utility model.

[0021] Figure 4 This is an exploded view of the components of the aseptic sampling and material transfer device of this utility model.

[0022] Figure 5 This is a three-dimensional schematic diagram of the placement base of the aseptic sampling and material transfer device of this utility model.

[0023] Figure 6 This is a three-dimensional schematic diagram of the placement cylinder body of the aseptic sampling and material transfer device of this utility model.

[0024] Figure 7 This is a partial cross-sectional view of the aseptic sampling and material transfer device of this utility model.

[0025] Figure 8 yes Figure 7 Enlarged view of a portion of point A in the middle.

[0026] The following are the labels in the diagram: 1. Placement cylinder body; 2. Receiving groove; 3. Aseptic sampling mechanism; 4. Piston cylinder; 5. Pull rod; 6. Rubber stopper; 7. Placement groove; 8. Sterilization component; 9. Placement base; 10. Mounting groove; 11. Glass container; 12. Ultraviolet sterilizer; 13. Sealing plug; 14. First electrical connection block; 15. Second electrical connection block; 16. Battery; 17. Annular sealing block; 18. Cover; 19. Sealing slot; 20. Locking mechanism; 21. Locking block; 22. Locking slot; 23. Positioning insertion hole; 24. Positioning insertion block; 25. Guide rod; 26. Guide groove. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0028] Reference Figure 1 and Figure 2 As shown: A sterile sampling device includes a placement cylinder body 1, a receiving groove 2 is provided at the center of the placement cylinder body 1, a sterile sampling mechanism 3 is placed in the receiving groove 2, the sterile sampling mechanism 3 includes a piston cylinder 4, a pull rod 5 is slidably connected inside the piston cylinder 4, a rubber stopper 6 is provided at one end of the pull rod 5, the rubber stopper 6 is in contact with the inner wall of the piston cylinder 4, a sampling port is provided at one end of the piston cylinder 4, and an anti-detachment block is provided at the end of the piston cylinder 4 away from the sampling port to prevent the pull rod 5 from detaching.

[0029] In the prior art, the material transfer device and the aseptic sampling device are separate designs, requiring the aseptic sampling device to be located each time a sample is taken. To solve this problem, in this application, the rubber stopper 6 is tightly fitted to the inner wall of the piston cylinder 4 to form a sliding sealed space. When the operator pulls the lever 5 outward, the rubber stopper 6 moves synchronously with the lever 5, creating a negative pressure space inside the piston cylinder 4. At this time, the sampling port at the front end of the piston cylinder 4 contacts the sample to be collected. Under the action of pressure difference, the sample to be collected is drawn into the internal cavity of the piston cylinder 4 through the sampling port. To prevent the lever 5 from moving excessively, an anti-detachment block is set at the end of the piston cylinder 4 away from the sampling port. The anti-detachment block has a through hole adapted to the lever 5. When the aseptic sampling mechanism 3 is in the storage state, the aseptic sampling mechanism 3 is located in the receiving groove 2 inside the placement cylinder.

[0030] In practical applications, the pull rod 5 and the rubber stopper 6 can be fixedly connected by interference fit, injection molding, or threaded connection to ensure structural stability when they move synchronously. The anti-detachment block and the piston cylinder 4 can be fixed by welding, bolting, or integral molding. The through hole on the anti-detachment block and the pull rod 5 are in clearance fit, which allows the pull rod 5 to slide freely while limiting the maximum displacement of the pull rod 5 through the end face of the anti-detachment block. To ensure the positioning and fixation of the aseptic sampling mechanism 3 in the receiving groove 2, the rubber stopper 6 can be made of medical-grade silicone rubber or EPDM rubber. Its outer diameter forms a sliding seal with the inner wall of the piston cylinder 4. The edge of the rubber stopper 6 can be designed as a lip structure to enhance the sealing effect. A filter screen or a guide slope can be set at the sampling port of the piston cylinder 4 to adapt to the collection needs of samples with different viscosities. In addition, the materials of the placement tube body 1 and the aseptic sampling mechanism 3 can be medical-grade stainless steel, polypropylene or polycarbonate and other sterile and corrosion-resistant materials. The connection interfaces of each component are all treated with arc transition or smooth treatment to avoid sample residue and bacterial growth, and to ensure that the whole device meets the requirements of aseptic operation.

[0031] Reference Figures 1-8 As shown: A material transfer device includes a sterile sampling device. The placement cylinder body 1 has a placement groove 7. A sterilization component 8 is placed in the placement groove 7. The sterilization component 8 includes a placement base 9 adapted to the placement groove 7. The receiving groove 2 is located at the center of the placement base 9. The placement base 9 has a plurality of installation grooves 10 at equal angles away from the center. A glass container 11 is installed in the installation groove 10. An ultraviolet sterilizer 12 is provided between the glass container 11 and the installation groove 10.

[0032] During the operation of the material transfer device, the sterilization component 8 sterilizes the glass container 11 using the ultraviolet sterilizer 12. In operation, the ultraviolet sterilizer 12 emits wavelengths of light that penetrate the wall of the glass container 11 and irradiate its internal cavity, achieving efficient sterilization by destroying the DNA / RNA structure of microorganisms. When materials need to be transferred, the operator aligns the sampling port of the piston cylinder 4 with the target glass container 11 and pushes the pull rod 5 to reset the rubber stopper 6. The sample within the compressed sealed space is precisely injected into the sterilized glass container 11 under positive pressure. During this process, the equally angled mounting slots 10 allow multiple glass containers 11 to be sterilized and dispensed simultaneously. The ultraviolet sterilizer 12 automatically triggers irradiation after the glass container 11 is installed, and its lamps are circumferentially arranged on the sidewalls of the mounting slots 10 to ensure uniform irradiation. The silicone sealing ring between the glass container 11 and the mounting slot 10 prevents external contaminants from entering.

[0033] The glass container 11 has a double-layered glass structure.

[0034] The double-glass structure forms a thermal barrier through a vacuum interlayer or inert gas filling layer between the inner and outer glass layers, which blocks the heat conduction of the external environment temperature to the sample inside the container during sterilization and material transfer.

[0035] Reference Figures 1-4 As shown: The glass container 11 is covered with a sealing plug 13.

[0036] The sealing plug 13 is made of an elastic material that is interference-fitted with the opening of the glass container 11, wherein the main body of the sealing plug 13 is provided with multiple annular protrusions to form a labyrinth-like sealing structure.

[0037] Reference Figures 4-6 As shown: The bottom of the placement base 9 is provided with a first electrical connection block 14, and the bottom of the placement groove 7 is provided with a second electrical connection block 15. When the placement base 9 is installed in the placement groove 7, the first electrical connection block 14 is inserted into the second electrical connection block 15 and the two are electrically connected. The bottom of the placement cylinder body 1 is equipped with a battery 16.

[0038] The first electrical connection block 14 and the second electrical connection block 15 adopt a plug-in contact structure to realize power transmission. When the placement base 9 is fully embedded in the placement groove 7, the elastic pin at the bottom of the first electrical connection block 14 and the conductive spring in the second electrical connection block 15 form multi-point contact. The tapered guide surface at its plug-in end cooperates with the limiting slot to achieve axial alignment. The battery 16 continuously supplies power to the second electrical connection block 15 through the built-in circuit. After the first electrical connection block 14 and the second electrical connection block 15 are coupled, the current provides working power to the ultraviolet sterilizer 12 through the conductive path. The waterproof sealing ring at the connection interface can prevent liquid from seeping in and causing a short circuit.

[0039] Reference Figures 6-8 As shown: The placement cylinder body 1 is provided with an annular sealing block 17, and the placement cylinder body 1 is covered with a cover 18. The cover 18 is provided with a sealing slot 19 that is adapted to the annular sealing block 17. When the cover 18 is placed on the placement cylinder body 1, the annular sealing block 17 is inserted into the sealing slot 19.

[0040] The annular sealing block 17 and the sealing slot 19 form a radial sealing interface through an interference fit. When the cover 18 is fastened, the tapered guide surface on the outer periphery of the annular sealing block 17 is aligned and inserted into the entrance of the sealing slot 19. After the elastic material annular sealing block 17 is deformed by pressure, it generates continuous contact pressure with the inner wall of the sealing slot 19.

[0041] Reference Figures 6-8As shown: A locking mechanism 20 is provided between the placement cylinder body 1 and the cover body 18. The locking mechanism 20 includes a locking block 21 provided on the placement cylinder body 1. A locking slot 22 adapted to the locking block 21 is provided on the cover body 18. A positioning insertion hole 23 is provided on the locking block 21. A positioning insertion block 24 is slidably connected in the locking slot 22.

[0042] The locking mechanism 20 achieves a stable closure between the cover 18 and the placement cylinder body 1 through mechanical interlocking. When the cover 18 is engaged, the operator drives the positioning block 24 to move along the preset slide rail in the locking slot 22 toward the locking block 21. The conical head at the front end of the positioning block 24 is preferentially inserted into the positioning hole 23 to complete the coarse positioning.

[0043] Reference Figure 8 As shown: The locking slot 22 is provided with a guide rod 25, the positioning block 24 is provided with a guide groove 26, and a reset spring is sleeved on the guide rod 25.

[0044] The guide rod 25 and the guide groove 26 form a precision sliding pair, which guides the positioning block 24 to move linearly along a preset trajectory during the locking operation. The surface of the guide rod 25 is hard anodized to reduce the coefficient of friction.

[0045] Working Principle: The aseptic sampling device achieves negative pressure extraction of samples through the coordinated action of the piston cylinder 4 and the pull rod 5. The aseptic sampling mechanism 3 is housed in the receiving groove 2 at the center of the cylinder body 1. The rubber stopper 6 inside the piston cylinder 4 forms a sliding seal with the cylinder wall. When the operator pulls the pull rod 5 outwards, the rubber stopper 6 moves backward with the pull rod 5, creating negative pressure inside the piston cylinder 4. The sample to be collected is drawn into the cylinder cavity through the sampling port under the pressure difference. The anti-detachment block limits the maximum displacement of the pull rod 5 through a through-hole, preventing it from detaching from the piston cylinder 4 and ensuring the integrity of the sealing structure. The fixing method of the pull rod 5 and the rubber stopper 6, as well as the connection method of the anti-detachment block and the piston cylinder 4, together ensure the stability and sealing of the structure during operation.

[0046] The material transfer device integrates a sterile sampling device and a sterilization component 8, achieving integrated sterilization and sample transfer. The sterile sampling mechanism 3, positioned at the center of the base 9, cooperates with the surrounding equally angled mounting slots 10. Glass containers 11 within the mounting slots 10 undergo efficient sterilization via ultraviolet (UV) sterilizer 12. Specific wavelengths of UV light penetrate the walls of the glass containers 11, destroying the genetic material of microorganisms and inactivating them. During sampling, pushing the lever 5 resets the rubber stopper 6, and the positive pressure generated by compressing the sealed space precisely injects the sample into the sterilized glass container 11. The circumferential lamp layout and silicone sealing ring design of the UV sterilizer ensure both sterilization uniformity and the sterility of the operating environment.

[0047] The double-walled glass container 11 forms a thermal barrier through a vacuum or inert gas interlayer, effectively blocking the influence of external temperature fluctuations on the sample. The insulating layer between the inner and outer glass layers reduces heat transfer during sterilization, preventing damage to sensitive samples from high temperatures, while maintaining internal temperature stability during low-temperature material transfer. This structural design balances sterilization efficiency with the reliability of sample preservation.

[0048] The sealing plug 13 employs a labyrinthine sealing structure composed of elastic material and multiple layers of annular protrusions, enhancing the airtightness of the glass container 11. When the sealing plug 13 is pressed into the container opening, the annular protrusions gradually adhere to the inner wall of the container, forming multiple barriers to effectively prevent the intrusion of external contaminants and sample leakage. The continuous contact pressure generated by the interference fit further enhances the stability of the sealing interface.

[0049] The electrical connection system transmits power through the insertion of the first and second electrical connection blocks 15. The elastic pins at the bottom of the base 9 make multi-point contact with the conductive springs in the placement groove 7, and the tapered guide surface ensures precise alignment. The battery 16 powers the UV sterilizer through this connection, and a built-in waterproof sealing ring prevents short circuits caused by liquid ingress, ensuring the safety and continuity of power transmission.

[0050] The seal between the cover 18 and the placement cylinder body 1 is achieved through an interference fit between the annular sealing block 17 and the sealing slot 19. When the cover 18 is closed, the tapered guide surface guides the annular sealing block 17 into the slot. After the elastic sealing block is deformed under pressure, it forms a radial sealing interface with the inner wall of the slot, effectively isolating external contaminants. This design simplifies the operation process while meeting high-level aseptic environment requirements.

[0051] The locking mechanism 20 employs a mechanical interlocking principle to ensure a secure closure between the cover 18 and the placement cylinder body 1. The positioning block 24 slides along the guide rod 25 into the positioning hole 23 of the locking block 21. After coarse positioning by the conical head, the return spring provides a counterforce to maintain the locked state. The hard anodized guide rod 25 reduces the coefficient of friction, making the locking operation smooth and precise, and ensuring the overall mechanism maintains durability even with frequent opening and closing.

[0052] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A sterile sampling device, comprising a placement cylinder body (1), characterized in that, The placement tube body (1) has a receiving groove (2) at its center, and a sterile sampling mechanism (3) is placed in the receiving groove (2); The aseptic sampling mechanism (3) includes a piston cylinder (4), a pull rod (5) is slidably connected inside the piston cylinder (4), a rubber stopper (6) is provided at one end of the pull rod (5), the rubber stopper (6) is in contact with the inner wall of the piston cylinder (4), a sampling port is provided at one end of the piston cylinder (4), and an anti-detachment block is provided at the end of the piston cylinder (4) away from the sampling port to prevent the pull rod (5) from detaching.

2. A material transfer device, comprising the aseptic sampling device as described in claim 1, characterized in that, The placement cylinder body (1) has a placement groove (7) inside, and a sterilization component (8) is placed in the placement groove (7); The sterilization component (8) includes a placement base (9) adapted to the placement slot (7). The receiving slot (2) is located at the center of the placement base (9). The placement base (9) has several installation slots (10) at equal angles away from the center. A glass container (11) is installed in the installation slot (10). An ultraviolet sterilizer (12) is provided between the glass container (11) and the installation slot (10).

3. The material transfer device according to claim 2, characterized in that, The glass container (11) has a double-layered glass structure.

4. A material transfer device according to claim 2, characterized in that, The glass container (11) is covered with a sealing plug (13).

5. A material transfer device according to claim 2, characterized in that, The bottom of the placement base (9) is provided with a first electrical connection block (14), and the bottom of the placement groove (7) is provided with a second electrical connection block (15). When the placement base (9) is installed in the placement slot (7), the first electrical connection block (14) is inserted into the second electrical connection block (15) and the two are electrically connected. A battery (16) is installed at the bottom of the placement cylinder body (1).

6. A material transfer device according to claim 2, characterized in that, The placement cylinder body (1) is provided with an annular sealing block (17), and the placement cylinder body (1) is covered with a cover (18); The cover (18) is provided with a sealing slot (19) that is compatible with the annular sealing block (17); When the cover (18) is placed on the placement cylinder body (1), the annular sealing block (17) is inserted into the sealing slot (19).

7. A material transfer device according to claim 6, characterized in that, A locking mechanism (20) is provided between the placement cylinder body (1) and the cover body (18); The locking mechanism (20) includes a locking block (21) disposed on the placement cylinder body (1); the cover (18) is provided with a locking slot (22) adapted to the locking block (21), the locking block (21) is provided with a positioning insertion hole (23), and a positioning insertion block (24) is slidably connected in the locking slot (22).

8. A material transfer device according to claim 7, characterized in that, The locking slot (22) is provided with a guide rod (25), the positioning block (24) is provided with a guide groove (26), and a reset spring is sleeved on the guide rod (25).

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