Steam sterilization auxiliary system

Abstract

The utility model provides a steam sterilization auxiliary system, which relates to the field of pharmaceutical equipment, is used for being matched with a liquid preparation storage tank for use, and comprises a bracket, a plurality of biological indicator fixing devices and a plurality of temperature probes. The support comprises a main shaft, a plurality of fixing mechanisms and a plurality of sub-shafts, the fixing mechanisms are all installed on the main shaft, and the positions, in the axial direction and the circumferential direction of the main shaft, of the fixing mechanisms are adjustable relative to the main shaft; at least one sub-shaft is mounted on each fixing mechanism; the biological indicator fixing device and the temperature probe are both mounted on the sub-shaft; the main shaft is used for being connected with a spraying ball bolt of the liquid preparation storage tank. According to the structural design, the temperature probes can be flexibly arranged in the liquid preparation storage tank, and the temperature in the liquid preparation storage tank is monitored through the cooperation of the multiple temperature probes, so that sterilization dead angles in the liquid preparation storage tank can be avoided, and the sterilization effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of pharmaceutical equipment, in particular to a steam sterilization auxiliary system. Background Art

[0002] In the pharmaceutical industry, technological advancements are leading to an increasing use of new equipment and technologies. As relevant departments place increasingly stringent demands on drug quality, pharmaceutical companies must consider all factors that may impact product quality during the production process to ensure quality. In the production of sterile drugs, the sterilization of production equipment is a crucial factor affecting the sterility of the drug. A large number of microorganisms can not only contaminate the product but also easily produce bacterial endotoxins. Existing technologies lack effective monitoring methods for steam sterilization of liquid storage tanks. Research and practice have revealed that this is primarily due to the large variety of liquid storage tank types and sizes, as well as the smooth interior walls of these tanks. Temperature verification probes cannot be fixed within these tanks, preventing comprehensive temperature monitoring during steam sterilization. This makes it difficult to identify blind spots in the sterilization process, resulting in incomplete sterilization. Furthermore, temperature probes can easily damage the tanks during sterilization. With the application and development of moist heat sterilization technology, the need for auxiliary verification systems for liquid storage tanks during moist heat sterilization is becoming increasingly urgent to ensure effective sterilization.

[0003] The inventors have found that the existing technology for monitoring the steam sterilization process of liquid storage tanks has at least the following shortcomings:

[0004] The inability to flexibly configure temperature probes is not conducive to monitoring the sterilization temperature distribution of the liquid storage tank, and it is impossible to confirm whether there are sterilization dead corners inside the liquid storage tank, and the sterilization effect of the liquid storage tank cannot be guaranteed. Utility Model Content

[0005] The purpose of the utility model is to provide a steam sterilization auxiliary system, which can flexibly configure temperature probes in the liquid storage tank, and monitor the internal temperature of the liquid storage tank through the cooperation of multiple temperature probes, thereby avoiding the generation of sterilization dead corners inside the liquid storage tank and improving the sterilization effect.

[0006] The embodiment of the present utility model is achieved as follows:

[0007] In a first aspect, the utility model provides a steam sterilization auxiliary system for use with a liquid storage tank, comprising:

[0008] A bracket, a biological indicator fixture, and a temperature probe, wherein the bracket includes a main shaft, multiple fixing mechanisms, and multiple sub-shafts, wherein the multiple fixing mechanisms are all mounted on the main shaft, and the position of each fixing mechanism relative to the main shaft in the axial and circumferential directions of the main shaft is adjustable; each fixing mechanism is mounted on at least one sub-shaft; the biological indicator fixture and the temperature probe are both mounted on the sub-shafts;

[0009] The main shaft is used to be connected to the spray ball latch of the liquid storage tank.

[0010] In an optional embodiment, the main shaft includes a plurality of main rod segments, the plurality of main rod segments are plug-fitted in sequence, and two adjacent main rod segments are detachably connected.

[0011] Based on the above scheme, the main shaft is set to a multi-section structure. The length of the main shaft can be adaptively adjusted according to the different sizes and types of liquid storage tanks, so that the length of the main shaft is suitable for liquid storage tanks of different heights. It can be installed in different types of liquid storage tanks, with flexible disassembly and assembly and a wide range of uses.

[0012] In an optional embodiment, the main shaft has a first end and a second end in its axial direction, and an assembly hole close to the first end is provided on the outer circumference of the main shaft, and the assembly hole is used for the spray ball pin to be plugged in; the second end is provided with a first protective sleeve.

[0013] Based on the above solution, the bracket is connected to the liquid distribution tank by connecting the assembly hole with the spray ball pin, which is convenient to operate. A first protective sleeve is provided at the second end. The first protective sleeve can be made of polytetrafluoroethylene, which has a certain degree of elasticity and is also resistant to high temperatures. The first protective sleeve prevents the second end of the main shaft from directly contacting the liquid distribution tank and scratching it, thereby improving safety.

[0014] In an optional embodiment, the fixing mechanism includes a fixing ring and a fixing screw, the fixing ring being sleeved on the outside of the main shaft, the fixing ring being movably connected to the main shaft in the axial and circumferential directions of the main shaft, the fixing screw being threaded onto the fixing ring, and the end of the fixing screw being used to abut against the outer circumferential surface of the main shaft to fix the fixing ring relative to the main shaft;

[0015] The sub-shaft is plugged into the fixing ring.

[0016] Based on this solution, a retaining ring is sleeved onto the main shaft. The position of the retaining ring is adjustable, making it easy to adjust the position of the sub-shaft mounted on the retaining ring, and thus the position of the temperature probe. After the retaining ring is adjusted, it is locked with a set screw, ensuring a stable and reliable position of the retaining ring.

[0017] In an optional embodiment, at least one positioning hole is provided on the outer circumferential surface of the fixing ring, and the sub-shaft is inserted into the positioning hole.

[0018] Based on the above solution, the sub-shaft is inserted into the positioning hole, or the sub-shaft is screwed into the positioning hole, which facilitates the installation and fixation of the sub-shaft and the fixing ring. When the fixing ring rotates relative to the main shaft, the angle of the sub-shaft can also be adjusted, thereby adjusting the angle of the temperature probe, providing flexible operation.

[0019] In an optional embodiment, the sub-shaft includes a plurality of sub-rod segments, the plurality of sub-rod segments are plug-fitted in sequence, and two adjacent sub-rod segments are detachably connected.

[0020] Based on the above scheme, the sub-shaft is set to a multi-section structure, and the length of the sub-shaft can be adaptively adjusted according to the different sizes and types of liquid storage tanks, so that the length of the sub-shaft is adapted to the liquid storage tanks with different inner diameters, and can be installed in different types of liquid storage tanks, avoiding interference and scratching between the end of the sub-shaft and the inner wall surface of the liquid storage tank. It is safe to use and has a wide range of uses.

[0021] In an optional embodiment, the biological indicator fixing device is screwed and fixed to the sub-shaft.

[0022] Based on the above solution, the biological indicator fixture is connected to the sub-shaft in a simple and reliable manner, and is easy to assemble and disassemble. Furthermore, the biological indicator fixture can be directly sleeved onto the outside of the sub-shaft, and the two are damped, making it easy to adjust the position of the biological indicator fixture relative to the sub-shaft. After adjustment, the positions of the two are relatively fixed and not easily changed.

[0023] In an optional embodiment, a second protective sleeve is provided at the end of the sub-shaft.

[0024] Based on the above solution, by setting a second protective cover at the end of the sub-shaft, the second protective cover can be made of polytetrafluoroethylene material, has certain elasticity, and can also withstand high temperatures. The second protective cover can prevent the end of the sub-shaft from directly contacting the liquid storage tank and scratching the liquid storage tank, thereby improving safety of use.

[0025] In an optional embodiment, the temperature probe is installed on the second protective cover.

[0026] Based on the above solution, the fixing method of the temperature probe is simple and reliable.

[0027] In an optional embodiment, a fixing hole is provided on the second protective cover, and the temperature probe is embedded in the fixing hole and has an interference fit with the fixing hole.

[0028] Based on the above solution, the temperature probe is positioned by the fixing hole, which is convenient for assembly and disassembly, and the position is stable and reliable, and it is not easy to fall off during use.

[0029] The beneficial effects of the embodiments of the present utility model are:

[0030] In summary, the steam sterilization auxiliary system provided in this embodiment secures the sub-shaft to the main shaft via a fixing mechanism, and the position of the fixing mechanism relative to the main shaft is adjustable. Thus, the position of the sub-shaft relative to the main shaft is adjustable, and the position of the temperature probe on the sub-shaft can be adjusted as needed. Since there are multiple sub-shafts and their positions are set as needed, the temperature probes can be distributed in different locations. When the bracket is mated with the liquid storage tank, multiple temperature probes can be distributed in different locations of the liquid storage tank, thereby enabling reasonable monitoring of the internal temperature of the liquid storage tank. This reduces the likelihood of blind spots in monitoring and sterilization within the liquid storage tank, effectively improving the sterilization effect of the liquid storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A schematic diagram of a steam sterilization auxiliary system according to an embodiment of the present invention from one perspective;

[0033] Figure 2 A schematic diagram of the steam sterilization auxiliary system according to an embodiment of the present invention from another perspective;

[0034] Figure 3 This is a schematic cross-sectional view of a fixing ring according to an embodiment of the present invention.

[0035] icon:

[0036] 100-bracket; 110-main shaft; 111-main rod segment; 112-assembly hole; 120-fixing mechanism; 121-fixing ring; 122-fixing screw; 123-positioning hole; 130-sub-shaft; 131-sub-rod segment; 140-first protective cover; 150-second protective cover; 200-biological indicator fixing device; 300-temperature probe. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0042] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0043] In the prior art, when the liquid storage tank is sterilized at high temperature, it is difficult to fix the temperature probe 300 because the inner wall of the liquid storage tank is smooth. Therefore, it is impossible to fully monitor the sterilization temperature distribution inside the liquid storage tank. Therefore, it is impossible to confirm whether there are sterilization dead corners during the sterilization of the liquid storage tank, which easily leads to incomplete sterilization effect, thereby affecting product quality.

[0044] In view of this, the designer provides a steam sterilization auxiliary system that can configure multiple temperature probes 300 in the liquid storage tank, so as to monitor the temperature at different positions of the liquid storage tank, making it less likely to have sterilization dead corners, and the liquid storage tank can be sterilized more thoroughly and effectively.

[0045] Please combine Figure 1-Figure 3 In this embodiment, the steam sterilization auxiliary system is used in conjunction with a liquid storage tank and includes a bracket 100, multiple biological indicator fixtures 200, and multiple temperature probes 300. The bracket 100 includes a main shaft 110, multiple fixing mechanisms 120, and multiple sub-shafts 130. The multiple fixing mechanisms 120 are all mounted on the main shaft 110, and the position of each fixing mechanism 120 relative to the main shaft 110 in both the axial and circumferential directions is adjustable. Each fixing mechanism 120 is mounted on at least one sub-shaft 130. The biological indicator fixtures 200 and the temperature probes 300 are both mounted on the sub-shafts 130. The main shaft 110 is used to connect to the spray ball latch of the liquid storage tank.

[0046] Based on the above, the steam sterilization auxiliary system provided in this embodiment works as follows:

[0047] The sub-shaft 130 is fixed to the main shaft 110 via the fixing mechanism 120. The position of the fixing mechanism 120 relative to the main shaft 110 is adjustable. Thus, the position of the sub-shaft 130 relative to the main shaft 110 is adjustable, and the position of the temperature probe 300 on the sub-shaft 130 can be adjusted as needed. Since there are multiple sub-shafts 130 and their positions are set as needed, the temperature probes 300 can be distributed in different locations. When the bracket 100 is matched with the liquid storage tank, the multiple temperature probes 300 can be distributed in different locations of the liquid storage tank, thereby effectively monitoring the internal temperature of the liquid storage tank. This reduces the risk of blind spots in monitoring and sterilization, effectively improving the sterilization effect of the liquid storage tank.

[0048] The following embodiments illustrate the details of the steam sterilization auxiliary system provided in this application by way of examples.

[0049] It should be noted that a liquid storage tank generally includes a tank body and a lid. The lid is located on the top of the tank body and can open or close the top opening of the tank body. A spray ball is installed inside the tank body for cleaning the tank body. The spray ball is connected to the tank body via a latch. When in use, the bracket 100 can be fixed to the spray ball latch.

[0050] Please combine Figure 2In this embodiment, the main shaft 110 optionally includes a plurality of main rod segments 111. The plurality of main rod segments 111 are plug-fitted in sequence, and two adjacent main rod segments 111 are detachably connected. Optionally, the main rod segments 111 may be cylindrical rods, and adjacent main rod segments 111 may be detachably connected by means of a snap or threaded structure. For example, each main rod segment 111 may have a threaded hole at one end and an external thread at the other end. The external threads of adjacent main rod segments 111 are screwed into the threaded holes, making assembly and disassembly convenient.

[0051] It should be understood that the number of main rod sections 111 is set as needed, so that the length of the main shaft 110 can be adjusted according to needs, that is, the length of the main shaft 110 can be adaptively adjusted according to different sizes and types of liquid storage tanks, so that the length of the main shaft 110 is adapted to liquid storage tanks of different heights, and can be installed in different types of liquid storage tanks, with flexible disassembly and assembly and a wide range of uses.

[0052] Furthermore, after the multiple main rod segments 111 are assembled, the outer circumference of the topmost main rod segment 111 is provided with an assembly hole 112 for engaging the spray ball latch. Furthermore, to ensure that the spray ball latch can engage with the assembly hole 112, the top main rod segment 111 is always required when selecting main rod segments 111. For ease of description, the main shaft 110 has a first end and a second end along its length. The assembly hole 112 is located near the first end, and a first protective cover 140 is provided on the second end.

[0053] Specifically, the first protective cover 140 can be made of polytetrafluoroethylene, which has a certain elastic deformation capability, is heat-resistant, and is safe and reliable to use. For example, the first protective cover 140 is provided with a blind hole, and the second end of the main shaft 110 is inserted into the blind hole, and the elastic deformation of the first protective cover 140 is used to hold the main shaft 110, thereby achieving connection.

[0054] Please combine Figure 1 or Figure 2 In this embodiment, the fixing mechanism 120 optionally includes a fixing ring 121 and a fixing screw 122. The fixing ring 121 is sleeved onto the outside of the main shaft 110 and is movably connected to the main shaft 110 in the axial and circumferential directions of the main shaft 110. The fixing screw 122 is threaded onto the fixing ring 121, and the end of the fixing screw 122 is used to abut the outer circumferential surface of the main shaft 110 to fix the fixing ring 121 relative to the main shaft 110. The sub-shaft 130 is inserted into the fixing ring 121. The fixing ring 121 is sleeved onto the outside of the main shaft 110 and is adjustable, thereby facilitating adjustment of the position of the sub-shaft 130 mounted on the fixing ring 121, thereby adjusting the position of the temperature probe 300. After the fixing ring 121 is adjusted, it is locked with the fixing screw 122, ensuring a stable and reliable position of the fixing ring 121.

[0055] Please combine Figure 3 Optionally, at least one positioning hole 123 is provided on the outer circumference of the fixing ring 121, and the sub-shaft 130 is inserted into the positioning hole 123. In this embodiment, a plurality of positioning holes 123 are provided on the outer circumference of the fixing ring 121, and the plurality of positioning holes 123 are arranged at intervals around the axis of the fixing ring 121. A sub-shaft 130 can be inserted into each positioning hole 123, and the number and position of the sub-shafts 130 can be selected as needed.

[0056] It should be understood that the positioning hole 123 may be a threaded hole, and the sub-shaft 130 is threadedly engaged with the positioning hole 123, thereby facilitating the installation and fixation of the sub-shaft 130 and the fixing ring 121. When the fixing ring 121 rotates relative to the main shaft 110, the angle of the sub-shaft 130 can be adjusted, thereby adjusting the angle of the temperature probe 300, providing flexible operation.

[0057] In addition, the number and installation positions of the sub-shafts 130 on each fixing ring 121 can be adaptively adjusted.

[0058] In this embodiment, the sub-shaft 130 optionally includes a plurality of sub-rod segments 131, which are pluggable and mated in sequence, and two adjacent sub-rod segments 131 are detachably connected. The sub-shaft 130 is configured as a multi-segment structure, and the length of the sub-shaft 130 can be adaptively adjusted according to the different sizes and types of liquid storage tanks, so that the length of the sub-shaft 130 is adapted to liquid storage tanks of different inner diameters, and the sub-shaft 130 can be installed in different types of liquid storage tanks, thereby preventing interference and scraping between the end of the sub-shaft 130 and the inner wall surface of the liquid storage tank, thereby ensuring safety and a wide range of applications.

[0059] It should be understood that adjacent sub-rod segments 131 can be detachably coupled together by means of threaded connection or the like.

[0060] To prevent the end of sub-shaft 130 from contacting the inner wall of the liquid storage tank and scratching the tank, a second protective sleeve 150 is provided at the end of sub-shaft 130 away from main shaft 110. Second protective sleeve 150 can be made of polytetrafluoroethylene, which has a certain degree of elastic deformation and is resistant to high temperatures, making it safe and reliable to use. For example, second protective sleeve 150 may be provided with a blind hole, into which the end of sub-shaft 130 is inserted, and the elastic deformation of second protective sleeve 150 holds sub-shaft 130, completing the connection.

[0061] In addition, the temperature probe 300 can be mounted on the second protective cover 150. For example, a fixing hole can be provided on the second protective cover 150, and the temperature probe 300 is embedded in the fixing hole and has an interference fit with the fixing hole, with the front end of the temperature probe 300 extending out of the fixing hole to facilitate temperature monitoring.

[0062] In this embodiment, the biological indicator fixture 200 can optionally be threadedly secured to the sub-shaft 130. This connection between the biological indicator fixture 200 and the sub-shaft 130 is simple, reliable, and easy to assemble and disassemble. Furthermore, the biological indicator fixture 200 can be directly sleeved onto the exterior of the sub-shaft 130. The two can form a damping mechanism, facilitating adjustment of the position of the biological indicator fixture relative to the sub-shaft 130. Adjustment also ensures that the positions of the two are relatively fixed and not susceptible to spontaneous change.

[0063] It should be understood that the biological indicator fixing device 200 is provided with a receiving cavity, and the biological indicator is placed in the receiving cavity. The position of the biological indicator is stable and easy to take and place.

[0064] It should be understood that the biological indicator is a well-known technology. Its structure is not improved in this embodiment. In order to avoid repetition and redundancy, it is not described in detail.

[0065] In other embodiments, optionally, a data line connecting the temperature probe 300 can be set in the sub-shaft 130 and the main shaft 110, or a wireless data transmission module can be integrated on the temperature probe 300 to transmit data to the host through a local area network.

[0066] The steam sterilization auxiliary system provided in this embodiment has a structural design of the bracket 100 that can be freely assembled to the required height according to the height and diameter requirements of the liquid storage tank, without being restricted by the height of the equipment, so as to meet the requirements of online steam sterilization of liquid storage tanks of different sizes. The assembly hole 112 near the top of the main shaft 110 can be connected and fixed to the spray ball pin of the liquid storage tank, making assembly convenient and quick. The fixing ring 121 can be freely adjusted in height according to the requirements of the distribution point, and can meet the requirements of temperature monitoring at different positions of liquid storage tanks of different sizes. By fixing the assembled sub-shaft 130 to the fixing ring 121, the temperature probe 300 can be evenly distributed in different directions, which can achieve real-time monitoring of the all-round temperature distribution during the online steam sterilization of the liquid storage tank. The biological indicator fixing device 200 can quickly fix and recover the biological indicator to prevent the biological indicator from falling off and being damaged during the steam sterilization process. The design of the first protective cover 140 and the second protective cover 150 is convenient for fixing the temperature probe 300 and can also effectively avoid damage to the liquid storage tank during the installation or steam sterilization process of the steam sterilization auxiliary verification system, thereby effectively protecting the liquid storage tank from harm.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A steam sterilization auxiliary system for use with a liquid storage tank, characterized in that: include: A bracket (100), a biological indicator fixing device (200) and a temperature probe (300), wherein the bracket (100) comprises a main shaft (110), a plurality of fixing mechanisms (120) and a plurality of sub-shafts (130), wherein the plurality of fixing mechanisms (120) are all mounted on the main shaft (110), and the position of each fixing mechanism (120) relative to the main shaft (110) in the axial direction and the circumferential direction of the main shaft (110) is adjustable; each fixing mechanism (120) is mounted on at least one sub-shaft (130); and the biological indicator fixing device (200) and the temperature probe (300) are both mounted on the sub-shafts (130); The main shaft (110) is used to be connected to the spray ball latch of the liquid storage tank.

2. The steam sterilization auxiliary system according to claim 1, characterized in that: The main shaft (110) comprises a plurality of main rod segments (111), the plurality of main rod segments (111) are plug-fitted in sequence, and two adjacent main rod segments (111) are detachably connected.

3. The steam sterilization auxiliary system according to claim 1, characterized in that: The main shaft (110) has a first end and a second end in its axial direction; an assembly hole (112) close to the first end is provided on the outer peripheral surface of the main shaft (110); the assembly hole (112) is used for plugging a spray ball pin; and a first protective sleeve (140) is provided on the second end.

4. The steam sterilization auxiliary system according to claim 1, characterized in that: The fixing mechanism (120) includes a fixing ring (121) and a fixing screw (122), wherein the fixing ring (121) is sleeved on the outside of the main shaft (110), and the fixing ring (121) is movably connected to the main shaft (110) in the axial direction and the circumferential direction of the main shaft (110), and the fixing screw (122) is screwed onto the fixing ring (121), and the end of the fixing screw (122) is used to abut against the outer peripheral surface of the main shaft (110) to fix the fixing ring (121) relative to the main shaft (110); The sub-shaft (130) is plugged into the fixing ring (121).

5. The steam sterilization auxiliary system according to claim 4, characterized in that: At least one positioning hole (123) is provided on the outer peripheral surface of the fixing ring (121), and the sub-shaft (130) is inserted into the positioning hole (123).

6. The steam sterilization auxiliary system according to claim 1, characterized in that: The sub-shaft (130) comprises a plurality of sub-rod segments (131), the plurality of sub-rod segments (131) are plug-fitted in sequence, and two adjacent sub-rod segments (131) are detachably connected.

7. The steam sterilization auxiliary system according to claim 1, characterized in that: The biological indicator fixing device (200) is screwed and fixed to the sub-shaft (130).

8. The steam sterilization auxiliary system according to claim 1, characterized in that: A second protective sleeve (150) is provided at the end of the sub-shaft (130).

9. The steam sterilization auxiliary system according to claim 8, characterized in that: The temperature probe (300) is mounted on the second protective cover (150).

10. The steam sterilization auxiliary system according to claim 9, characterized in that: The second protective sleeve (150) is provided with a fixing hole, and the temperature probe (300) is embedded in the fixing hole and is interference-fitted with the fixing hole.

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