A clamping and fixing device and its application in pressure steam sterilization
By designing the clamping assembly and limiting assembly of the clamping equipment, combined with light capture and temperature sensors, the problems of inaccurate identification of sterilization time and container shaking are solved, and the safety and accuracy of the sterilization process are achieved.
Patent Information
- Application Number
- CN202411955486.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2044-12-28
AI Technical Summary
In the prior art, the sterilization time cannot be accurately identified, and the container is prone to shake during the sterilization process, resulting in inaccurate identification results, and at the same time, the container collided with the clamping device and was damaged.
A clamping and fixing device is designed, including clamping components, limiting components and heating parts. The combination of elastic plates and movable blocks ensures stable clamping of the container, and the sterilization time is identified through the light capture plates and color sensors, and the heating blocks and temperature sensors ensures uniform heating of the solution.
It realizes accurate identification of sterilization time, ensures the safety and stability of the container during the sterilization process, reduces the risk of container damage, and improves the accuracy and working efficiency of sterilization results.
Smart Images

Figure CN119367577B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of sterilization detection equipment, in particular to a clamping and fixing device and its application in pressure steam sterilization. Background Art
[0002] For autoclave containers, the set values include sterilization temperature and sterilization time. While the sterilization temperature is verified using relevant products, such as sterilization indicator cards and 3M sterilization indicator tape, the sterilization time has not yet been confirmed using relevant products or methods.
[0003] Patent application number CN201821176942.5 discloses a clamping and fixing device for a sterilization indicator, comprising a base, a splint and a lead screw. A pair of anti-slip pads are fixedly connected at both ends of the bottom surface of the base, a pair of support plates are vertically fixedly connected at one end of the upper surface of the base, and the two support plates are horizontally fixedly connected to a limit plate at one end away from the base. A first groove is provided inside the base just below the limit plate. The above scheme can flexibly and conveniently clamp and fix the sterilization indicator bottle by installing the splint on the two movable movable plates, and the positioning groove on the limit plate can limit the position of the reagent bottle and play a supporting role, thereby preventing the reagent bottle from falling off due to looseness of the splint during clamping. In addition, the lead screw is used to move the movable plate, and two bidirectional threads are provided on the movable plate to facilitate the relative movement of the two movable plates, thereby achieving a flexible clamping function. The entire clamping and fixing device is easy to use, the clamping is more stable, and the entire device can be easy to carry. The above-mentioned prior art only achieves the clamping of the sterilization indicator bottle and cannot accurately identify the sterilization time.
[0004] In the process of detecting and judging the sterilization time, the container containing the solution needs to be connected to the device. During this process, it is easy for the container to collide and be damaged with the bottom of the clamping device. In addition, when the container clamp is in use, there is a gap between the container clamp and the container, causing the container to shake during the sterilization process, affecting the recognition result.
[0005] Therefore, in order to solve the above technical problems, the present invention proposes a clamping and fixing device and its application in pressure steam sterilization. Summary of the Invention
[0006] The purpose of the present invention is to address the above problems and provide a clamping and fixing device and its application in pressure steam sterilization, which has the advantages of being able to accurately determine the sterilization time and ensure the safety of the container.
[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a clamping and fixing device, comprising a sterilizing device, wherein a plurality of limiting components are movably provided in the sterilizing device, a container is plugged into the limiting component, the limiting component comprises a limiting portion, one end of the limiting portion is connected to the clamping component, an end of the limiting portion away from the clamping component is connected to a connecting portion, an end of the connecting portion away from the clamping component is connected to the clamping portion, an end of the clamping portion away from the connecting portion is connected to a heating portion, and an end of the heating portion away from the clamping portion is connected to a bearing portion;
[0008] The clamping assembly includes a plurality of elastic plates. One end of the elastic plate close to the limiting portion is connected to a movable block, and the movable block is movably connected to the end surface of the limiting portion.
[0009] Preferably, the clamping assembly further includes a return spring, one end of which is connected to the movable block, and the other end of which is connected to the limiting portion.
[0010] Preferably, a storage cavity for placing a container is provided through the limiting component, a detection cavity is provided through the clamping portion, and the detection cavity is communicated with the storage cavity.
[0011] Preferably, a plurality of connecting cavities are provided in the limiting portion, and a stabilizing component is connected to each of the plurality of connecting cavities. The stabilizing component includes a telescopic rod, one end of the telescopic rod is connected to the cavity wall of the connecting cavity, and the end of the telescopic rod away from the connecting cavity is connected to a clamping plate.
[0012] Preferably, a light capturing plate is connected to the cavity wall of the detection cavity, and a color sensor is connected inside the light capturing plate.
[0013] Preferably, a plurality of heating blocks are connected to the cavity wall of the detection cavity, and the heating blocks and the light capturing plates are staggeredly arranged on the detection cavity.
[0014] Preferably, a plurality of temperature sensors are connected to the cavity wall of the storage cavity, and the temperature sensors are located on the connecting portion.
[0015] Preferably, the sterilization device includes a sterilization box, a sterilization cavity is opened in the sterilization box, a plurality of support seats are connected in the sterilization cavity, the limiting component is clamped with the support seat, and a light emitter is connected to the corresponding position of the sterilization cavity and the limiting component.
[0016] The invention discloses an application of a clamping and fixing device in pressure steam sterilization.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The container can be stably clamped by the mutual cooperation between the clamping assembly and the limiting assembly. When the container contacts the clamping assembly, the mutual cooperation between the elastic plate and the movable block can slow down the movement rate of the container in the storage cavity, thereby improving the safety of the container during use, reducing the contact time between the user and the container, and improving the user's work efficiency.
[0019] 2. By cooperating with the stabilizing component and the elastic plate, and using the card plate to seal the storage cavity, the probability of debris entering the storage cavity when the limiting component is not in use is reduced, and the failure rate of the limiting component is reduced. At the same time, after the container enters the storage cavity, the elastic plate and the card plate cooperate with each other to ensure the stability of the container.
[0020] 3. Through the cooperation of the heating block and the heating part, the heating space of the solution in the container is increased, the solution in the container is heated evenly, and the accuracy of the identification of the sterilization time is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device of the present invention;
[0022] Figure 2 Schematic diagram of the cross-sectional structure of the overall device of the present invention;
[0023] Figure 3 is a schematic diagram of the three-dimensional structure of the restriction component of the present invention;
[0024] Figure 4 Schematic diagram of the three-dimensional structure of the limiting portion of the present invention;
[0025] Figure 5 Schematic diagram of the cross-sectional structure of the restriction portion of the present invention;
[0026] Figure 6 is a schematic cross-sectional structural diagram of a restriction assembly of the present invention;
[0027] Figure 7 It is a schematic diagram of the connection structure of the card board of the present invention.
[0028] Description of the drawings: 1. Sterilization device; 101. Sterilization box; 102. Sterilization chamber; 103. Support seat; 2. Limiting assembly; 201. Limiting part; 2011. Connecting chamber; 202. Connecting part; 203. Clamping part; 2031. Detection chamber; 204. Heating part; 205. Bearing part; 3. Container; 4. Clamping assembly; 401. Elastic plate; 402. Movable block; 403. Return spring; 5. Stabilizing assembly; 501. Card; 502. Telescopic rod; 6. Storage chamber; 7. Temperature sensor; 8. Light capturing plate; 9. Heating block. DETAILED DESCRIPTION
[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1
[0030] like Figure 1 - Figure 7 As shown, this embodiment discloses a clamping and fixing device, including a sterilization device 1 for providing a sterilization space, wherein a plurality of restriction components 2 are movably provided in the sterilization device 1, wherein the number of the restriction components 2 is greater than or equal to two, ensuring that there is a control group for the restriction components 2 during sterilization, and a container 3 is plugged into the restriction component 2, and the container 3 is filled with a liquid for testing. When in use, the restriction component 2 is connected to the sterilization device 1 by plugging the container 3 into the restriction component 2, and then the restriction component 2 is connected to the sterilization device 1, and the stability of the restriction component 2 in the sterilization device 1 is ensured.
[0031] The container 3 includes but is not limited to a test tube and a beaker.
[0032] The limiting assembly 2 includes a limiting portion 201, one end of the limiting portion 201 is connected to a clamping assembly 4 for constraining the position of the upper portion of the container 3, the end of the limiting portion 201 away from the clamping assembly 4 is connected to a connecting portion 202, the end of the connecting portion 202 away from the clamping assembly 4 is connected to a clamping portion 203, the end of the clamping portion 203 away from the connecting portion 202 is connected to a heating portion 204 for heating the solution in the container 3, and the end of the heating portion 204 away from the clamping portion 203 is connected to a bearing portion 205, thereby During the plugging process between the container 3 and the limiting component 2, the container 3 first passes through the clamping component 4 and then enters the area of the limiting component 2, and passes through the limiting part 201, the connecting part 202, the clamping part 203, the heating part 204 and the supporting part 205 in sequence. The bottom of the container 3 contacts the bottom of the supporting part 205, and the container 3 is heated by the heating part 204. The heating temperature of the heating part 204 on each limiting component 2 can be freely adjusted to ensure that the sterilization rate of the solution in the container 3 at different temperatures can be identified during use.
[0033] In order to ensure the stability of the container 3 when it is connected to the limiting component 2, the clamping component 4 includes a plurality of elastic plates 401, and the plurality of elastic plates 401 are distributed in a circular array on the limiting component 2. A movable block 402 is connected to one end of the elastic plate 401 close to the limiting portion 201. The movable block 402 is movably connected to the end face of the limiting portion 201. That is, when the elastic plate 401 is subjected to force, it will cause relative displacement between the movable block 402 and the limiting portion 201, and at the same time change the angle between the movable block 402 and the elastic plate 401.
[0034] It should be noted that the cross-sectional shape of the elastic plate 401 includes but is not limited to a "√" shape, and when the elastic plate 401 is connected to the movable block 402, the elastic plate 401 is in an inclined state, ensuring that the elastic plate 401 can restrict and clamp the container 3 during use to maintain the stability of the container 3.
[0035] Furthermore, in order to ensure that the container 3 moves stably on the clamping assembly 4 and reduce the damage caused by the collision between the bottom of the container 3 and the bearing part 205 due to improper operation of the staff, the clamping assembly 4 also includes a return spring 403, one end of the return spring 403 is connected to the movable block 402, and the other end is connected to the limiting part 201. When the container 3 contacts the elastic plate 401, it will drive the elastic plate 401 to deflect and collide with the tube wall of the container 3. At the same time, as the container 3 continues to move toward the limiting assembly 2, it will drive the elastic plate 401 to continue to deflect, and drive the movable block 402 to move on the limiting part 201, causing the length of the return spring 403 to extend, ensuring that the container 3 moves stably on the limiting assembly 2 and will not collide with the bearing part 205 and be damaged.
[0036] It should be noted that the contact portion between the elastic plate 401 and the container 3 is provided with an anti-slip sheet, and since the tube wall of the container 3 is in a smooth state, the anti-slip sheet can only suppress the movement rate of the container 3, and cannot completely prevent the movement of the container 3. At the same time, since the container 3 contains a solution, the anti-slip sheet will cause the elastic plate 401 to slowly deflect as the container 3 moves, thereby driving the movable block 402 to move, causing the length of the return spring 403 to extend, which is used to ensure that the movement rate of the container 3 in the limiting component 2 is stable, thereby improving the safety of the container 3.
[0037] If necessary, in order to ensure the accuracy of identification and detection of sterilization time, it is necessary to control the depth of the solution in containers 3 of the same specification to be the same, that is, the containers 3 are under the same gravity with each other, and then when the container 3 moves on the elastic plate 401, the volume of the solution in the container 3 can be identified according to the deflection angle of the elastic plate 401. When the deflection angle of the elastic plate 401 is the same, it means that the volume of the solution in the container 3 is the same. When the deflection angle of the elastic plate 401 is different, it means that the volume of the solution in the container 3 is different, reminding the staff to adjust the solution in the container 3.
[0038] Furthermore, in order to ensure that the placement space of the container 3 in the limiting component 2 is stable and the container 3 does not shake or fall in the limiting component 2, a vertical storage cavity 6 for placing the container 3 is opened through the limiting component 2, and a detection cavity 2031 is opened through the clamping portion 203, and the detection cavity 2031 is connected to the storage cavity 6. After the container 3 passes through the elastic plate 401, the bottom and wall of the container 3 will enter the storage cavity 6, and pass through the detection cavity 2031 to collide with the supporting portion 205. When the container 3 passes through the clamping component 4 and initially enters the storage cavity 6, the user can release the container 3 at this time, so that the container 3 slides freely into the storage cavity 6, reducing the time it takes for the user to install the container 3.
[0039] Furthermore, in order to ensure that the limiting component 2 can meet the stable use of containers 3 of different specifications, a plurality of connecting cavities 2011 are opened in the limiting portion 201, and the plurality of connecting cavities 2011 are evenly distributed on the limiting portion 201 in a circular array. A stabilizing component 5 is connected to each of the plurality of connecting cavities 2011. In this embodiment, the number of the connecting cavities 2011 is preferably four, and the stabilizing component 5 includes a telescopic rod 502 for controlling the position of the card plate 501. One end of the telescopic rod 502 is connected to the cavity wall of the connecting cavity 2011, and the end of the telescopic rod 502 away from the connecting cavity 2011 is connected to the card plate 501, which can be hidden. Hidden in the connecting cavity 2011, it ensures that the container 3 will not be interfered with by the card plate 501 when moving in the storage cavity 6, wherein the card plate 501 is in a fan-shaped state, and the storage cavity 6 can be covered by the cooperation of the four card plates 501. At the same time, when the container 3 is placed in the storage cavity 6, the card plate 501 is controlled to move by the telescopic rod 502, so that the card plate 501 contacts the tube wall of the container 3, ensuring the stability of the container 3 in the storage cavity 6. At the same time, the elastic plate 401 can control the length of the telescopic rod 502, thereby realizing the control of the position of the card plate 501, ensuring that the card plate 501 does not interfere with the movement of the container 3.
[0040] When the container 3 is not in the storage cavity 6, the clamping plate 501 can seal the storage cavity 6 to prevent debris from entering the storage cavity 6 and affecting the placement of the container 3, thereby ensuring stable use of the clamping and fixing device.
[0041] Furthermore, when the container 3 is in the sterilization process, a sterilization indicator is added, and the color in the container 3 can change with the occurrence of the sterilization situation, and then the sterilization situation in the container 3 can be judged by identifying the color change in the container 3. A light capture plate 8 for capturing the color passing through the container 3 is connected to the cavity wall of the detection cavity 2031, and a color sensor is connected to the light capture plate 8. The color sensor identifies and judges the light situation captured by the light capture plate 8, and the color in the container 3 can be quickly identified to ensure the accuracy of the sterilization time.
[0042] Furthermore, in order to ensure the sterilization time of the sterilization indicator at different temperatures, a plurality of heating blocks 9 are connected to the cavity wall of the detection cavity 2031, and the heating blocks 9 and the light capture plate 8 are staggered on the detection cavity 2031. In the present invention, the heating block 9 is preferably an electric heating component. Through the mutual cooperation between the heating block 9 and the heating part 204, it is ensured that the solution in the container 3 can be heated evenly, which can meet the sterilization requirements of the sterilization indicator.
[0043] Furthermore, a plurality of temperature sensors 7 are connected to the cavity wall of the storage cavity 6 . The temperature sensors 7 are located on the connecting portion 202 . The temperature sensors 7 are used to identify and detect the temperature in the container 3 to ensure the accuracy of the sterilization time.
[0044] Furthermore, the sterilization device 1 includes a sterilization box 101, a sterilization chamber 102 is opened in the sterilization box 101, and a plurality of support seats 103 are connected to the sterilization chamber 102. In this embodiment, the support seat 103 is composed of multiple groups of cross bars, so that the clamping portion 203 in the limiting component 2 is clamped with the support seat 103 to ensure the stability of the container 3 in the sterilization chamber 102, and a light emitter is connected to the corresponding position of the sterilization chamber 102 and the limiting component 2. The light of the light emitter is irradiated into the container 3, and then the judgment is made by the color of the reflected light in the container 3.
[0045] At the same time, in this embodiment, the shape of the support seat 103 can also be a disc, and a groove for the clamping part 203 to be engaged is opened on the disc to fix the limiting component 2. At the same time, during the sterilization process, the support seat 103 can be controlled to rotate, prompting the solution in the container 3 to rotate, thereby increasing the sterilization time.
[0046] Specifically, sterilization indicators that indicate different sterilization temperatures and times typically utilize chemical reactions that occur to varying degrees under different temperature and time conditions. Some indicators based on changes in enzyme activity or color changes can be designed to monitor the sterilization process. When exposed to specific temperature-time combinations, their chemical or physical properties change, resulting in a different color or state change.
[0047] When the device is used, first add an appropriately measured solution into the container 3, move the container 3 to contact the clamping component 4 and slide relative to it, and during the movement of the container 3, the stabilizing component 5 is hidden in the connecting cavity 2011 under the action of the clamping component 4 to ensure that the container 3 and the limiting component 2 are stably plugged in, and at the same time, add the sterilization reagent and its indicator, and after the container 3 is connected to the limiting component 2, move the limiting component 2 to connect with the sterilization device 1 to realize the identification of the sterilization status in the container 3.
[0048] After the container 3 contacts the clamping assembly 4, it first contacts the elastic plate 401, and as the container 3 moves, the container 3 is prompted to contact the anti-slip sheet on the elastic plate 401, and as the container 3 continues to move, the container 3 is driven to deflect at an angle, and due to the influence of the interaction force between the container 3 and the anti-slip sheet, in the process of the container 3 moving into the storage cavity 6, the elastic plate 401 drives the movable block 402 and the limiting part 201 to slide relative to each other, driving the length of the return spring 403 to stretch, ensuring that the movement speed of the container 3 in the storage cavity 6 is stable and will not cause damage to the container 3. At the same time, it also allows the user to adjust other operation processes without the need for continuous control of the container 3, thereby improving work efficiency.
[0049] Furthermore, when the elastic plate 401 drives the movable block 402 to move, the telescopic rod 502 drives the clamping plate 501 to move into the connecting cavity 2011 , ensuring that there is no interference with the movement of the container 3 .
[0050] With the relative sliding between the container 3 and the elastic plate 401 and the movement of the elastic plate 401 and the movable block 402, the stability of the container 3 when in contact with the bearing portion 205 is ensured. When the container 3 moves in the storage cavity 6, the sterilization reagent and its indicator are added to the container 3, and the limiting component 2 is moved to contact and limit the support seat 103 to ensure that the container 3 is stably connected in the sterilization cavity 102.
[0051] After the container 3 completely contacts the bearing portion 205, the elastic plate 401, under the action of the return spring 403 and its own elastic force, prompts the movable block 402 to move toward the side close to the container 3 under the elastic force of the return spring 403, and the elastic plate 401 slides relatively with the tube wall of the container 3. At this time, the container 3 does not displace with the storage chamber 6, that is, the elastic plate 401 elastically resets to maintain the clamping restriction on the container 3, and adjusts the telescopic rod 502 to drive the card plate 501 to move, prompting the end of the card plate 501 away from the telescopic rod 502 to contact the tube wall of the container 3, ensuring that the position of the container 3 in the sterilization chamber 102 is stable. While the elastic plate 401 and the card plate 501 clamp and fix the container 3, the card plate 501 can also block the light in the storage chamber 6, reduce the interference of external light on the color sensor, improve the color sensor's capture sensitivity of the solution color in the container 3, and ensure that detection errors will not cause significant interference to the detection results.
[0052] The light emitter is controlled to start, causing the light to pass through the container 3 and the solution in the container 3, reflecting the light onto the light capturing plate 8 and being recognized by the color sensor, and heating the solution in the container 3 through the heating portion 204 and the heating block 9. The time when the color in the container 3 changes is judged by the color sensor, which is used to judge the difference in sterilization time of the sterilizer at different temperatures, thereby determining the sterilization time of the sterilizer when it is used.
[0053] It should be noted that a magnetic interface connected to the clamping portion 203 is provided on the support seat 103. When the clamping portion 203 moves to the target position, an electrical connection is formed between the support seat 103 and the limiting component 2, and the working status of the limiting component 2 and the identified situation can be received through the sterilization box 101. Example 2
[0054] This embodiment discloses an application of a clamping and fixing device in pressure steam sterilization. By using a sterilization indicator in a pressure steam environment and identifying and judging the color change of the sterilization indicator, the sterilization time of the sterilizer is determined. In addition, the clamping effect of the clamping and fixing device on the container 3 can improve the detection effect of the container 3 in pressure steam sterilization and ensure the safety and stability of the container 3 during the clamping process.
[0055] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.
[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A clamping and fixing device, characterized in that: The sterilizing device (1) comprises a sterilizing device (1), wherein a plurality of limiting components (2) are movably provided in the sterilizing device (1), a container (3) is plugged into the limiting component (2), the limiting component (2) comprises a limiting portion (201), one end of the limiting portion (201) is connected to a clamping component (4), one end of the limiting portion (201) away from the clamping component (4) is connected to a connecting portion (202), one end of the connecting portion (202) away from the clamping component (4) is connected to a clamping portion (203), one end of the clamping portion (203) away from the connecting portion (202) is connected to a heating portion (204), and one end of the heating portion (204) away from the clamping portion (203) is connected to a bearing portion (205); The clamping assembly (4) includes a plurality of elastic plates (401), one end of the elastic plate (401) close to the limiting portion (201) is connected to a movable block (402), the movable block (402) is movably connected to the end surface of the limiting portion (201), and a return spring (403), one end of the return spring (403) is connected to the movable block (402), and the other end is connected to the limiting portion (201), and a non-slip sheet is provided at the contact portion between the elastic plate (401) and the container (3); A plurality of connecting cavities (2011) are provided in the limiting portion (201), and the plurality of connecting cavities (2011) are evenly distributed on the limiting portion (201) in a circular array. A stabilizing assembly (5) is connected to each of the plurality of connecting cavities (2011), and the stabilizing assembly (5) comprises a telescopic rod (502), one end of the telescopic rod (502) is connected to a cavity wall of the connecting cavity (2011), and an end of the telescopic rod (502) away from the connecting cavity (2011) is connected to a clamping plate (501), and the clamping plate (501) can be hidden in the connecting cavity (2011); A storage cavity (6) for placing the container (3) is provided through the limiting component (2), a detection cavity (2031) is provided through the clamping portion (203), and the detection cavity (2031) is communicated with the storage cavity (6); A light capturing plate (8) is connected to the cavity wall of the detection cavity (2031), and a color sensor is connected inside the light capturing plate (8); A plurality of heating blocks (9) are connected to the cavity wall of the detection cavity (2031), and the heating blocks (9) and the light capturing plates (8) are arranged alternately on the detection cavity (2031); A plurality of temperature sensors (7) are connected to the cavity wall of the storage cavity (6), and the temperature sensors (7) are located on the connecting portion (202); The sterilization device (1) comprises a sterilization box (101), a sterilization cavity (102) is provided in the sterilization box (101), and a light emitter is connected to the corresponding position of the sterilization cavity (102) and the limiting component (2).
2. The clamping and fixing device according to claim 1, characterized in that: A plurality of support seats (103) are connected and provided in the sterilization chamber (102), and the limiting assembly (2) is engaged with the support seats (103).
3. Use of the clamping and fixing device according to claim 1 in pressure steam sterilization.
Citation Information
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Sterilization indicator reading apparatus with color sensor
CN113518631A
Clamping and fixing device of sterilization indicator
CN208443741U
Nucleic acid detection kit with self-disinfection function
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