Sterilization device and bacteria picking apparatus

Abstract

The application relates to a sterilization device and a bacteria picking device. The sterilization device comprises a mounting bracket and a plurality of heating pipes arranged in an array on the mounting bracket. Each heating pipe is provided with a heating cavity for accommodating a bacteria picking member, and the heating pipe is used for heating the bacteria picking member entering the heating cavity. The above-mentioned sterilization device and bacteria picking device can simultaneously perform high-temperature sterilization on a plurality of bacteria picking members, thereby being suitable for a bacteria picking device with a plurality of bacteria picking members, improving sterilization efficiency, and reducing the cost of modifying the bacteria picking device.

Description

Technical Field

[0001] This application relates to the field of microbial experimental technology, and in particular to a sterilization device and a bacteria-picking device. Background Technology

[0002] In microbiological experiments, it is often necessary to screen and isolate microorganisms with desired functions. This process typically involves first enriching the sample and then plating it onto a petri dish containing solid culture medium. Once single colonies of different morphologies have grown in the petri dish, reusable picking tools are used to pick them out and transfer them one by one to multi-well plates containing culture medium for purification. To avoid cross-contamination between colonies, the picking tools need to be sterilized after each picking operation. Currently, when manually inoculating colonies, researchers can sterilize the picking tools using an alcohol lamp or an infrared sterilizing lamp.

[0003] With the rise of automated laboratory equipment, automated colony picking devices are gradually replacing manual colony picking operations. To improve picking efficiency, automated picking devices typically have multiple picking elements arranged in an array within their picking heads. However, the compact arrangement of these picking elements and the relatively precise nature of their moving components make them unsuitable for traditional alcohol lamps or infrared sterilization lamps. Sterilization requires a process of cleaning with a cleaning solution, immersion in a disinfectant solution, and finally heating and drying. Both the disinfectant immersion and the heating and drying processes require considerable waiting time, resulting in a time-consuming sterilization process. Furthermore, current sterilization equipment is difficult to directly adapt to picking devices with multiple picking elements. Firstly, existing sterilization equipment typically only sterilizes a single target. Secondly, the original drive mechanism of the picking device is difficult to adapt to the existing sterilization equipment structure, requiring the addition of a complex drive mechanism or a mechanism to disassemble the picking elements, thus increasing costs. Utility Model Content

[0004] Therefore, it is necessary to provide a sterilization device and sterilization equipment to address the problem of how to effectively and quickly sterilize and disinfect a sterilization device with multiple sterilization components.

[0005] In a first aspect, this application provides a sterilization apparatus, comprising:

[0006] Mounting bracket;

[0007] Multiple heating tubes are arranged in an array on the mounting bracket. Each heating tube has a heating chamber for accommodating the pick-up piece. The heating tube is used to sterilize the pick-up piece that enters the heating chamber.

[0008] The technical solution will be further explained below:

[0009] In one embodiment, the sterilization device further includes a circuit board mounted on a mounting bracket. The circuit board is electrically connected to the heating element and is used to control the heating element to generate heat.

[0010] In one embodiment, the circuit board includes multiple control circuits, each of which is electrically connected to a corresponding heating element. The control circuits are used to control the corresponding heating element to generate heat.

[0011] In one embodiment, the control circuit includes a current detection module for monitoring the current of the heating element. When the current of the heating element does not fall within a preset range, the current detection module issues a fault warning signal.

[0012] In one embodiment, the mounting bracket includes:

[0013] The mounting plate has multiple mounting holes arranged in an array, and the heating tubes are arranged in the mounting holes one by one.

[0014] In one embodiment, the mounting bracket further includes:

[0015] A support column supports the mounting plate and the circuit board, and the mounting plate and the circuit board are spaced apart in the height direction of the support column.

[0016] In one embodiment, a heat insulation plate is provided between the circuit board and the mounting plate, and the heat insulation plate is connected to the support column.

[0017] In one embodiment, an adhesive is provided between the heating tube and the wall of the mounting hole.

[0018] In one embodiment, one of the outer wall of the heating tube and the wall of the mounting hole is provided with a buckle, and the other is provided with a slot, and the buckle and the slot engage with each other.

[0019] In one embodiment, the sterilization device further includes a heat-insulating cover plate disposed above the mounting plate. The heat-insulating cover plate has clearance holes for the inoculant to pass through, and the clearance holes are aligned with the mounting holes one-to-one.

[0020] In one embodiment, the heating element includes:

[0021] The tube body, the cavity of which forms the heating chamber;

[0022] A heating element, wherein the heating element is disposed in the pipe wall of the pipe body;

[0023] A conductive wire electrically connects the heating element to the circuit board.

[0024] In one embodiment, the tube body is a ceramic tube.

[0025] In one embodiment, the heating element includes a plurality of heating resistors arranged in the tube wall along the circumferential direction of the heating tube, and all the heating resistors are electrically connected to the conductive line.

[0026] In one embodiment, the heating resistor includes a heating wire.

[0027] Secondly, this application provides a sterilization device, including a sterilization device and the above-mentioned sterilization device. The sterilization device includes a plurality of sterilization elements arranged in an array, and the sterilization elements are arranged in a one-to-one correspondence with the heating tube.

[0028] In one embodiment, the bacteria-picking device further includes a driving mechanism connected to the bacteria-picking element, the driving mechanism being used to drive the bacteria-picking element to insert into or withdraw from the heating tube.

[0029] In the aforementioned sterilization device, multiple heating tubes are arrayed on the mounting bracket, and the heating tubes can be controlled by a circuit board to generate heat. Thus, after the sterilization device completes one sterilization cycle, the multiple sterilization pieces on the sterilization device are inserted one-to-one into the heating chambers of the respective heating tubes, achieving uniform high-temperature sterilization of each sterilization piece. Compared to traditional alcohol lamps or infrared sterilization lamps that can only sterilize individual sterilization pieces one by one, the sterilization device of this application can simultaneously sterilize multiple sterilization pieces at high temperatures, thus adapting to sterilization devices with multiple sterilization pieces and improving sterilization efficiency. Furthermore, compared to sterilization methods that require cleaning with a cleaning solution, soaking in a disinfectant solution, and finally heating and drying, the sterilization device of this application achieves rapid inactivation of the sterilization pieces by heating them at high temperatures with the heating tubes, eliminating the waiting time for soaking and drying, and improving sterilization efficiency.

[0030] Furthermore, the sterilization device of this application only requires inserting the picker into the heating chamber of the heating tube to sterilize the picker. That is, during the sterilization process, the picker only needs to drive the picker to perform the same action (up and down movement) as the picker to cooperate with the sterilization device for sterilization. Therefore, the sterilization device of this application can be adapted to existing automatic picker equipment on the market. There is no need to add a complex drive mechanism or a mechanism to disassemble the picker on the original mechanism of the picker equipment, thus saving modification costs. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0034] Figure 1 This is a schematic diagram of the structure of a sterilization device according to one embodiment.

[0035] Figure 2 for Figure 1 A top view of the sterilization apparatus shown.

[0036] Figure 3 for Figure 1 The front view of the sterilization apparatus shown.

[0037] Figure 4 This is a schematic diagram of the heating element of a sterilization device according to one embodiment.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10. Mounting bracket; 11. Mounting plate; 111. Mounting hole; 12. Support column; 20. Heating tube; 21. Tube body; 211. Heating chamber; 22. Conductive wire; 30. Circuit board; 40. Heat insulation board; 50. Heat insulation cover plate. Detailed Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0041] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0042] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0046] One embodiment of this application provides a sterilization device for high-temperature sterilization of the sterilization components in a sterilization equipment. Specifically, see [link to specific details]. Figure 1 as well as Figure 2 One embodiment of the sterilization apparatus includes a mounting bracket 10 and a plurality of heating tubes 20, wherein the plurality of heating tubes 20 are arranged in an array on the mounting bracket 10, that is, the plurality of heating tubes 20 are arranged on the mounting bracket 10 to form a multi-row, multi-column structure. Further, each heating tube 20 is provided with a heating chamber 211 for accommodating the inoculant, and the heating tube 20 is used to heat the inoculant entering the heating chamber 211.

[0047] In the above-mentioned sterilization device, multiple heating tubes 20 are arranged in an array on the mounting bracket 10, and the heating tubes 20 can be controlled to heat up via the circuit board 30. Thus, after the picking device completes one picking cycle, the multiple picking pieces on the picking device are inserted one by one into the heating chamber 211 of the heating tube 20 to achieve uniform high-temperature sterilization of each picking piece. Compared with the sterilization method that requires cleaning with cleaning solution, soaking in disinfectant solution, and finally heating and drying, the sterilization device of this application can quickly inactivate the picking pieces by heating them at high temperature with the heating tubes 20, eliminating the waiting time for soaking and drying, and improving sterilization efficiency.

[0048] Furthermore, the sterilization device of this application only requires inserting the picker into the heating chamber of the heating tube to sterilize the picker. That is, during the sterilization process, the picker only needs to drive the picker to perform the same action (up and down movement) as the picker to cooperate with the sterilization device for sterilization. Therefore, the sterilization device of this application can be adapted to existing automatic picker equipment on the market. There is no need to add a complex drive mechanism or a mechanism to disassemble the picker on the original mechanism of the picker equipment, thus saving modification costs.

[0049] See Figure 1 In one embodiment, the sterilization device further includes a circuit board 30, which is mounted on the mounting bracket 10 and electrically connected to the heating tube 20. The circuit board 30 is used to control the heating tube 20 to generate heat. Exemplarily, the circuit board 30 is used to control the heating temperature and heating duration of the heating tube 20.

[0050] Furthermore, the circuit board 30 can control all heating elements 20 to heat up simultaneously, or it can individually control one or more specific heating elements 20 to heat up. Specifically, in one embodiment, the circuit board 30 includes multiple control circuits, each of which is electrically connected to a specific heating element 20. The control circuits are used to control the heating of their respective heating elements. This allows for the simultaneous heating of all heating elements 20, or the individual control of one or more specific heating elements 20.

[0051] Furthermore, each heating element 20's control circuit is also equipped with a separate current detection module. This module monitors the current of the corresponding heating element 20 to determine if it is operating normally. When the current of a heating element 20 falls outside the preset range, the current detection module issues a fault warning signal. For example, if a heating element 20 malfunctions—for instance, if it burns out after prolonged use and has no current after being powered on, or if it experiences an abnormally high current due to a short circuit—the faulty heating element 20 will be detected by the current detection module. The current detection module then sends a fault warning signal to the control system, which in turn issues an audible alarm, a visual alarm, or a text alarm to notify personnel for repairs.

[0052] See Figure 1 as well as Figure 3 In one embodiment, the mounting bracket 10 includes a mounting plate 11, which has a plurality of mounting holes 111 arranged in an array. The heating tubes 20 are respectively disposed in the mounting holes 111 to fix the heating tubes 20.

[0053] The mounting bracket 10 also includes a support column 12, which supports the mounting plate 11 and the circuit board 30. The mounting plate 11 and the circuit board 30 are spaced apart along the height of the support column 12. Exemplarily, the mounting plate 11 is stacked on top of the circuit board 30 with a gap. By correspondingly arranging the heating tubes 20 in the mounting holes 111 of the mounting plate 11 and stacking the mounting plate 11 and the circuit board 30 on the support column 12 with a gap, the overall structure of the sterilization device is more rational and compact, reducing the space occupied.

[0054] Furthermore, the mounting plate 11 is made of non-metallic material with certain heat insulation capabilities, such as sintered aluminum oxide plate, which can effectively insulate the heating tube 20.

[0055] Furthermore, the number and spacing of the mounting holes 111 on the mounting plate 11 correspond one-to-one with the number and spacing of wells on the cell culture plate used in the bacterial picking device. For example, when the bacterial picking device uses a 96-well plate, the number and spacing of the bacterial picking components are also designed for the 96-well plate. In this case, the number of mounting holes 111 is set to 96, and the spacing of the mounting holes 111 is the same as the spacing of the wells on the 96-well plate, thus adapting to the number and spacing of the bacterial picking components. Understandably, the number of mounting holes 111 and heating tubes 20 can be 2, 4, 8, 16, 24, 48, 96, etc., and the spacing of the mounting holes 111 is an integer multiple of 9 mm, thereby adapting to standard cell culture plates of different sizes.

[0056] Optionally, in one embodiment, an adhesive is provided between the heating tube 20 and the wall of the mounting hole 111. Specifically, a high-temperature resistant adhesive is used to bond the heating tube 20 to the wall of the mounting hole 111, ensuring that the heating tube 20 can be stably fixed in the mounting hole 111.

[0057] Optionally, in another embodiment, the outer wall of the heating tube 20 is provided with protruding buckles (not shown), and the wall of the mounting hole 111 is provided with slots (not shown). The buckles and slots engage in a snap-fit ​​relationship, thus also fixing the heating tube 20 in the mounting hole 111. Further, the outer wall of the heating tube 20 is provided with multiple buckles, which are spaced apart along the outer circumference of the heating tube 20. The wall of the mounting hole 111 is provided with multiple slots, and the buckles are correspondingly positioned in the slots, thereby further improving the fixing effect of the heating tube 20. It is also understood that in other embodiments, slots can be provided on the outer wall of the heating tube 20, and buckles can be provided on the wall of the mounting hole 111. The engagement of the buckles and slots can also achieve the same effect of fixing the heating tube 20, which will not be elaborated here.

[0058] Furthermore, there are multiple support columns 12, which are spaced apart and work together to support the mounting plate 11 and the circuit board 30. For example, there are four support columns 12. The four support columns 12 are respectively arranged at the four corners of the mounting plate 11, so that the mounting plate 11 is balanced by forces and keeps it in a horizontal state.

[0059] See also Figure 3 Optionally, in one embodiment, a heat insulation plate 40 is provided between the circuit board 30 and the mounting plate 11, and the heat insulation plate 40 is connected to the support column 12. The heat insulation plate 40 can effectively prevent the heat generated by the heating tube 20 from directly reaching the circuit board 30 through radiation or air convection, thereby preventing the circuit board 30 from overheating and being damaged, ensuring that the circuit board 30 can be used with conventional soldering processes, and reducing costs. Exemplarily, the heat insulation plate 40 is a high-temperature resistant heat insulation material, such as sintered alumina sheet.

[0060] See Figure 3 Optionally, in one embodiment, the sterilization device further includes a heat-insulating cover plate 50, which is disposed above the mounting plate 11. The heat-insulating cover plate 50 has clearance holes for the inoculant to pass through, and the clearance holes are aligned with the mounting holes 111. The heat-insulating cover plate 50 prevents the heat generated by the heating tube 20 from directly reaching the moving mechanism of the inoculant picking device through radiation or air convection, thus preventing the moving mechanism of the inoculant picking device from overheating and being damaged.

[0061] See Figure 4 Optionally, in one embodiment, the heating tube 20 includes a tube body 21, a heating element (not shown), and a conductive wire 22. The tube body 21 forms a heating chamber 211. Specifically, the tube body 21 is a tubular component open at one end and is disposed in the mounting hole 111. The heating element is disposed within the tube wall of the tube body 21, and the conductive wire 22 electrically connects the heating element to the circuit board 30. Specifically, the heat insulation plate 40 has a through-hole for the conductive wire 22 to pass through, and the conductive wire 22 passes through the through-hole and is electrically connected to the circuit board 30. By connecting a power source to the circuit board 30, power can be supplied to the heating element using the conductive wire 22, causing the heating element to heat up, thereby heating the heating chamber 211 and achieving high-temperature sterilization of the sample entering the heating chamber 211.

[0062] Optionally, in one embodiment, the tube body 21 is a ceramic tube. The ceramic tube can confine the effective heating area of ​​the heating tube 20 within the heating chamber 211, avoiding large heat loss and ensuring relative safety while reducing energy consumption.

[0063] Optionally, in one embodiment, the heating element includes multiple heating resistors arranged along the circumference of the heating tube 20 within the tube wall of the tube body 21, and all heating resistors are electrically connected to the conductive wire 22. Heating the heating chamber 211 using multiple heating resistors ensures a more uniform temperature within the heating chamber 211, thereby improving the sterilization effect on the inoculants.

[0064] Specifically, the heating resistor includes a heating wire disposed on the wall of the heating tube. For example, the heating wire is a conductive strip formed by printing conductive paste onto the inner wall of the tube. The heating wire is electrically connected to a conductive wire, and power is supplied to the heating wire via the conductive wire 22, causing the heating wire to heat up, thereby heating the heating cavity 211.

[0065] On the other hand, this application also provides a sterilization device, which includes a sterilization picker and a sterilization device of any of the above embodiments. The sterilization picker includes a plurality of sterilization pickers arranged in an array, and the sterilization pickers are arranged in a one-to-one correspondence with the heating tube 20.

[0066] For example, in one embodiment, the bacteria-picking device further includes a drive mechanism connected to the bacteria-picking element. The drive mechanism is used to drive the bacteria-picking element to insert into or exit the heating tube 20. Specifically, the drive mechanism can be a multi-axis robotic arm or a linear motion module, as long as it can drive the bacteria-picking element to move independently so that the bacteria-picking element can enter and exit the heating chamber 211 of the heating tube 20. There are no restrictions here.

[0067] In the aforementioned sterilization device, multiple heating tubes 20 are arrayed on the mounting bracket 10 of the sterilization device, and all heating tubes 20 can be controlled to heat up via the circuit board 30. Thus, after the sterilization device completes one sterilization cycle, each sterilization component of the sterilization device can be inserted into the heating chamber 211 of each heating tube 20 in a corresponding manner to achieve uniform high-temperature sterilization of each sterilization component. Compared with the sterilization method that requires cleaning with cleaning solution, soaking in disinfectant solution, and finally heating and drying, the sterilization device of this application can quickly inactivate the sterilization components by heating them at high temperature with the heating tubes 20, eliminating the waiting time for soaking and drying, and improving sterilization efficiency.

[0068] Furthermore, the sterilization device of this application only requires inserting the picker into the heating chamber of the heating tube to sterilize the picker. That is, during the sterilization process, the picker only needs to drive the picker to perform the same action (up and down movement) as the picker to cooperate with the sterilization device for sterilization. Therefore, the sterilization device of this application can be adapted to existing automatic picker equipment on the market. There is no need to add a complex drive mechanism or a mechanism to disassemble the picker on the original mechanism of the picker equipment, thus saving modification costs.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A sterilization device, characterized in that, include: Mounting bracket (10); Multiple heating tubes (20) are arranged in an array on the mounting bracket (10). Each heating tube (20) is provided with a heating chamber (211) for accommodating the picker. The heating tube (20) is used to sterilize the picker that enters the heating chamber (211).

2. The sterilization device according to claim 1, characterized in that, The sterilization device further includes: Circuit board (30), the circuit board (30) is mounted on the mounting bracket (10), the circuit board (30) is electrically connected to the heating tube (20), and the circuit board (30) is used to control the heating tube (20) to generate heat.

3. The sterilization device according to claim 2, characterized in that, The circuit board (30) includes multiple control circuits, each of which is electrically connected to each of the heating tubes (20) in a corresponding manner. The control circuits are used to control the heating of the corresponding heating tubes (20).

4. The sterilization apparatus according to claim 3, characterized in that, The control circuit includes a current detection module, which is used to monitor the current of the heating tube (20). When the current of the heating tube (20) does not fall within the preset range value, the current detection module issues a fault warning signal.

5. The sterilization apparatus according to claim 2, characterized in that, The mounting bracket (10) includes: Mounting plate (11) has multiple mounting holes (111) arranged in an array, and heating tubes (20) are arranged in the mounting holes (111) one by one.

6. The sterilization apparatus according to claim 5, characterized in that, The mounting bracket (10) further includes a support column (12) that supports the mounting plate (11) and the circuit board (30), and the mounting plate (11) and the circuit board (30) are spaced apart in the height direction of the support column (12).

7. The sterilization apparatus according to claim 6, characterized in that, A heat insulation plate (40) is provided between the circuit board (30) and the mounting plate (11), and the heat insulation plate (40) is connected to the support column (12).

8. The sterilization apparatus according to claim 5, characterized in that, An adhesive is provided between the heating tube (20) and the wall of the mounting hole (111); and / or, One of the outer wall of the heating tube (20) and the wall of the mounting hole (111) is provided with a buckle, and the other is provided with a slot, and the buckle and the slot engage with each other.

9. The sterilization apparatus according to claim 5, characterized in that, The sterilization device also includes a heat insulation cover plate (50), which is disposed above the mounting plate (11). The heat insulation cover plate (50) has a clearance hole for the inoculant to pass through, and the clearance hole is aligned with the mounting hole (111).

10. The sterilization apparatus according to claim 1, characterized in that, The heating element (20) includes: The tube body (21) has a cavity that forms the heating cavity (211). A heating element is disposed in the wall of the tube body (21); Conductive wire (22), which is electrically connected to the heating element.

11. The sterilization apparatus according to claim 10, characterized in that, The tube body (21) is a ceramic tube.

12. The sterilization apparatus according to claim 10, characterized in that, The heating element includes a plurality of heating resistors, which are arranged in the tube wall of the tube body (21) along the circumferential direction of the heating tube (20), and all the heating resistors are electrically connected to the conductive wire (22).

13. The sterilization apparatus according to claim 12, characterized in that, The heating resistor includes a heating wire.

14. A bacterial picking device, characterized in that, The device includes a sterilization device and a sterilization device according to any one of claims 1-13. The sterilization device includes a plurality of sterilization elements arranged in an array, and the sterilization elements are arranged in a one-to-one correspondence with the heating tube (20).

15. The bacteria-picking device according to claim 14, characterized in that, The picker also includes a drive mechanism connected to the picker, which is used to drive the picker to insert into or out of the heating tube (20).

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