A multi-channel waste liquid absorption device for cell culture

Abstract

This utility model relates to a multi-channel waste liquid absorption device for cell culture, belonging to the field of experimental waste liquid treatment technology. It includes a waste liquid tank with a threaded sealing cap with a sealing strip at the top. The bottom of the tank has a detachable hollow base housing a rechargeable battery and a foot switch. The outside of the tank is equipped with a mounting base with a sterilization switch and a negative pressure vacuum pump. The vacuum pump is connected to the inside of the tank via a negative pressure pipe with a flow valve. The sealing cap has multiple channel pipe interfaces, allowing for the use of single-channel, four-channel, and eight-channel multi-channel suction tubes of different specifications. An ultraviolet sterilization device is installed in the center of the waste liquid tank, with the ultraviolet lamp covered by a quartz glass tube. A drain pipe with a control valve is also located at the bottom of the tank. This device uses negative pressure suction combined with foot control, allowing for flexible adjustment of the suction rate. The multi-channel structure improves waste liquid collection efficiency, and the built-in ultraviolet sterilization structure effectively kills harmful microorganisms in the waste liquid, preventing biological contamination. The large opening of the tank facilitates cleaning and maintenance, making it suitable for high-throughput cell culture experiments.

Description

Technical Field

[0001] This invention belongs to the field of laboratory waste liquid treatment technology, specifically relating to a multi-channel waste liquid absorption device for cell culture. Background Technology

[0002] In cell culture experiments, it is often necessary to treat culture waste liquid. Traditional waste liquid absorption equipment mostly adopts a single-channel design, which cannot meet the needs of high-throughput experiments. Moreover, the collection of waste liquid is prone to biological contamination, affecting the hygiene of the laboratory environment. At the same time, some devices are inconvenient to clean and disinfect, increasing the difficulty of operation and time costs. Therefore, it is of great significance to develop a high-efficiency, multi-channel, easy-to-clean waste liquid absorption device with sterilization function. Utility Model Content

[0003] The purpose of this invention is to provide a multi-channel waste liquid absorption device for cell culture, which can solve the problems mentioned in the background art.

[0004] The specific technical solution adopted in this utility model is as follows: A multi-channel waste liquid absorption device for cell culture includes a waste liquid tank and a sealing cap on the top of the waste liquid tank. A base is provided at the bottom of the waste liquid tank, and a foot switch is fixed on the outer side of the base. A mounting base is fixed on the outer side of the waste liquid tank, and a sterilization switch and a negative pressure vacuum pump are fixed on the outer side of the mounting base. The suction end of the negative pressure vacuum pump is connected to the inside of the waste liquid tank through a negative pressure pipe, and a flow valve is also installed on the negative pressure pipe. The top of the sealing cap is equipped with multiple channel pipe interfaces that communicate with the inside of the waste liquid tank, and the channel pipe interfaces are connected to multi-channel suction pipes. An ultraviolet sterilization device for sterilizing waste liquid is also installed at the center of the waste liquid tank.

[0005] The present invention is further configured such that: the base is a hollow and detachable structure, and a rechargeable battery is installed inside; the foot switch, the negative pressure vacuum pump and the rechargeable battery are electrically connected.

[0006] This utility model is further configured such that: the multi-channel aspiration tube includes a four-channel tube, a single-channel pagoda-shaped tube, and an eight-channel tube, one end interface of each of the four-channel tube, the single-channel pagoda-shaped tube, and the eight-channel tube is adapted to the interface of the channel tube, and three sealing caps are provided, which are respectively connected to the four-channel tube, the single-channel pagoda-shaped tube, and the eight-channel tube.

[0007] The present invention is further configured such that: the ultraviolet sterilization device includes a fixed rod installed in the center of the inside of the waste liquid tank, with circular plates at both ends of the fixed rod, and multiple ultraviolet lamps arranged in a circumferential array around the outside of the fixed rod between the two circular plates, each of the ultraviolet lamps being sealed with a quartz glass tube, and the multiple ultraviolet lamps being controlled by a sterilization switch.

[0008] The present invention is further configured such that: the outer wall of the top of the waste liquid tank is machined with external threads, the inner wall of the sealing cap is machined with internal threads, the sealing cap is screwed onto the top of the waste liquid tank, and the inner wall of the sealing cap is also provided with a sealing strip.

[0009] The present invention is further configured such that: the lower end of the waste liquid tank is provided with a drain pipe connected to its interior, and a control valve is provided on the drain pipe.

[0010] The technical effects achieved by this utility model are as follows: This utility model discloses a multi-channel waste liquid absorption device for cell culture. It employs a combination of multi-channel suction tubes and multiple channel tube interfaces, making it compatible with 96-well and 24-well plates to meet various experimental needs and improve waste liquid collection efficiency. Furthermore, the combination of negative pressure suction and foot switch not only allows for the regulation of waste liquid absorption speed but also eliminates the need for manual control, providing operators with greater flexibility and ease when operating the suction tubes and improving waste liquid treatment efficiency.

[0011] This utility model discloses a multi-channel waste liquid absorption device for cell culture. The barrel features a large opening design, which not only facilitates cleaning and disinfection, but also allows the built-in ultraviolet sterilization device to sterilize the waste liquid in real time, preventing the spread of harmful microorganisms and ensuring a safe experimental environment. Attached Figure Description

[0012] Figure 1 This is a practical structural diagram; Figure 2 This is a practical disassembly diagram; Figure 3 This is a cross-sectional view of the waste liquid tank in this practical application.

[0013] The attached diagram lists the components represented by each number as follows: 1. Waste liquid tank; 2. Base; 21. Rechargeable battery; 3. Drain pipe; 4. Foot switch; 41. Negative pressure vacuum pump; 42. Negative pressure pipe; 5. Sterilization switch; 6. Mounting base; 7. Sealing cap; 71. Channel pipe interface; 8. Multi-channel suction pipe; 81. Four-channel pipe; 82. Single-channel pagoda-shaped pipe; 83. Eight-channel pipe; 9. Ultraviolet sterilization device; 91. Fixing rod; 92. Ultraviolet lamp tube; 93. Quartz glass tube; Detailed Implementation

[0014] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0015] like Figure 1-3 As shown, a multi-channel waste liquid absorption device for cell culture includes a waste liquid tank 1 and a sealing cap 7 fitted to the top of the waste liquid tank 1. The outer wall of the top of the waste liquid tank 1 is machined with external threads, and the inner wall of the sealing cap 7 is machined with internal threads. The sealing cap 7 is screwed onto the top of the waste liquid tank 1, and a sealing strip is also provided on the inner wall of the sealing cap 7. The waste liquid tank 1 adopts a large opening design to facilitate cleaning and disinfection of the tank. Moreover, the sealing cap 7 can be screwed on to ensure the airtightness of the waste liquid tank 1. In addition, a drain pipe 3 connected to the interior of the waste liquid tank 1 is provided at the lower end of the waste liquid tank 1, and a control valve is provided on the drain pipe 3. The waste liquid in the tank can be quickly discharged using the drain pipe 3.

[0016] The bottom of the waste liquid tank 1 is provided with a base 2. The base 2 is hollow and detachable, and a rechargeable battery 21 is installed inside. The rechargeable battery 21 can be an 18650 lithium battery pack. The charging interface is located in the waterproof compartment on the side of the base 2, and there is a charging indicator light (not shown in the figure). A foot switch 4 is fixed on the outer side of the base 2, and a mounting base 6 is fixed on the outer side of the waste liquid tank 1. A sterilization switch 5 and a negative pressure vacuum pump 41 are fixed on the outer side of the mounting base 6. The foot switch 4, the negative pressure vacuum pump 41 and the rechargeable battery 21 are electrically connected. The suction end of the negative pressure vacuum pump 41 is connected to the inside of the waste liquid tank 1 through a negative pressure pipe 42, and a flow valve is also provided on the negative pressure pipe 42. The top of the sealing cap 7 is equipped with multiple channel tube interfaces 71 that communicate with the inside of the waste liquid tank 1. The channel tube interfaces 71 are connected to multi-channel suction tubes 8, which include four-channel tubes 81, single-channel pagoda-shaped tubes 82 and eight-channel tubes 83. One end of each of the four-channel tubes 81, single-channel pagoda-shaped tubes 82 and eight-channel tubes 83 is adapted to the channel tube interfaces 71. The sealing cap 7 is provided with three tubes, which are respectively connected to the four-channel tubes 81, single-channel pagoda-shaped tubes 82 and eight-channel tubes 83. The four-channel tubes 81 and eight-channel tubes 83 are suitable for the waste liquid treatment of 96-well plates or 24-well plates and can simultaneously aspirate waste liquid from four or eight wells. The conical design of the single-channel pagoda-shaped tube 82 makes it particularly suitable for the recovery of waste liquid after micro-pipettes and single-cell operations. An ultraviolet sterilization device 9 for sterilizing waste liquid is installed at the center of the waste liquid tank 1. The ultraviolet sterilization device 9 includes a fixed rod 91 installed at the center of the waste liquid tank 1. Circular plates are set at both ends of the fixed rod 91. Multiple ultraviolet lamps 92 are arranged in a circumferential array around the fixed rod 91 between the two circular plates. The ultraviolet lamps 92 have a wavelength of 254nm and can sterilize different types of waste liquid. Each ultraviolet lamp 92 is sealed with a quartz glass tube 93. The quartz glass tube 93 can protect the ultraviolet lamp 92. Moreover, the quartz glass tube 93 has high light transmittance and chemical stability. However, after long-term use, dirt may adhere to its surface, affecting the sterilization effect. Therefore, it needs to be cleaned in time. The multiple ultraviolet lamps 92 are controlled by a sterilization switch 5.

[0017] The working principle of this utility is as follows: When using it, select a suitable multi-channel suction tube 8 according to the experimental requirements, such as a four-channel tube 81, an eight-channel tube 83, or a single-channel pagoda-shaped tube 82. Connect its interface tightly to the corresponding channel tube interface 71 on the sealing cap 7. The unconnected channel tube interface 71 is sealed with a sealing cap. Then, screw the sealing cap 7 onto the top of the waste liquid tank 1 to ensure a good seal and prevent waste liquid leakage and odor emission. Furthermore, during liquid extraction, step on the foot switch 4 on the outer side of the base 2 to start the negative pressure vacuum pump 41. At this time, adjust the flow valve on the negative pressure tube 42 to adjust the waste liquid absorption speed to a suitable level to meet the needs of the current experiment. Then, place the suction end of the multi-channel suction tube 8 into the container that needs to absorb the waste liquid. Under the action of negative pressure, the waste liquid will be sucked into the waste liquid tank 1 through the suction tube. During the liquid extraction process, the flow valve can be finely adjusted again according to the actual situation to ensure the stability of the liquid extraction process. After the waste liquid is absorbed, step on the foot switch 4 again to turn off the negative pressure vacuum pump 41, remove the suction tube from the container, and place it in a designated location to avoid contamination. After the waste liquid is collected, press the sterilization switch 5 on the outside of the mounting base 6 to start the ultraviolet sterilization device 9. The ultraviolet lamp 92 will start working to sterilize the waste liquid in the waste liquid tank 1. The sterilization time can be controlled according to the type and requirements of the waste liquid. During the sterilization process, do not open the sealing cover 7 to avoid ultraviolet rays from harming the human body. After sterilization is complete, open the control valve on the drain pipe 3 to discharge the waste liquid into the designated waste liquid collection container. After discharge, close the control valve to ensure that the drain pipe 3 is in the closed state to prevent residual waste liquid from leaking.

[0018] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A multi-channel waste liquid absorption device for cell culture, comprising a waste liquid bucket (1) and a sealing cover (7) matched with the top of the waste liquid bucket (1), characterized in that: The bottom of the waste liquid tank (1) is provided with a base (2), and a foot switch (4) is fixed on the outer side of the base (2). A mounting seat (6) is fixed on the outer side of the waste liquid tank (1), and a sterilization switch (5) and a negative pressure vacuum pump (41) are fixed on the outer side of the mounting seat (6). The suction end of the negative pressure vacuum pump (41) is connected to the inside of the waste liquid tank (1) through the negative pressure pipe (42), and a flow valve is also provided on the negative pressure pipe (42). The top of the sealing cap (7) is equipped with multiple channel pipe interfaces (71) that communicate with the inside of the waste liquid tank (1), and a multi-channel suction pipe (8) is connected to the channel pipe interface (71). An ultraviolet sterilization device (9) for sterilizing waste liquid is also installed at the center of the interior of the waste liquid tank (1).

2. A multi-channel waste absorbent device for cell culture according to claim 1, wherein: The base (2) is a hollow and detachable structure, and a rechargeable battery (21) is installed inside. The foot switch (4), the negative pressure vacuum pump (41) and the rechargeable battery (21) are electrically connected.

3. The multi-channel waste absorbent device for cell culture according to claim 1, wherein: The multi-channel aspiration tube (8) includes a four-channel tube (81), a single-channel pagoda-shaped tube (82), and an eight-channel tube (83). One end of each of the four-channel tube (81), the single-channel pagoda-shaped tube (82), and the eight-channel tube (83) is adapted to the channel tube interface (71). Three sealing caps (7) are provided, which are respectively connected to the four-channel tube (81), the single-channel pagoda-shaped tube (82), and the eight-channel tube (83).

4. The multi-channel waste absorbent device for cell culture of claim 1, wherein: The ultraviolet sterilization device (9) includes a fixed rod (91) installed in the center of the waste liquid tank (1). The fixed rod (91) has circular plates at both ends. Between the two circular plates, a plurality of ultraviolet lamps (92) are arranged in a circular array around the outside of the fixed rod (91). Each ultraviolet lamp (92) is sealed with a quartz glass tube (93). The plurality of ultraviolet lamps (92) are controlled by a sterilization switch (5).

5. The multi-channel waste absorbent device for cell culture of claim 1, wherein: The top outer wall of the waste liquid tank (1) is machined with external threads, and the inner wall of the sealing cap (7) is machined with internal threads. The sealing cap (7) is screwed onto the top of the waste liquid tank (1), and the inner wall of the sealing cap (7) is also provided with a sealing strip.

6. The multi-channel waste absorbent device for cell culture of claim 1, wherein: The waste liquid tank (1) is also provided with a drain pipe (3) connected to its interior at the lower end, and a control valve is provided on the drain pipe (3).

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