Microbial pollution detection equipment for dialysis water

Abstract

According to the dialysis water microbial pollution detection equipment provided by the utility model, the antibacterial layer covering the surface of the flexible antibacterial covering film above the detection cavity can effectively inhibit the breeding of microorganisms at the contact part, and a user can drive the covering film to stably slide in the limiting edge only by rotating the first rotating shaft or the second rotating shaft, so that the detection efficiency is greatly improved. The unused, clean and sterile through hole area is rapidly and accurately moved to the working position above the detection cavity, the risk of cross contamination caused by long-term exposure of the detection cavity is avoided, the independence of each detection and the reliability of the result are ensured, a plurality of detection sites can be provided by a single roll of film covering, and the detection efficiency is improved. The replacement frequency of traditional disposable consumables is greatly reduced, the consumable cost and the waste treatment capacity are remarkably reduced, and the detection efficiency is improved; the arc-shaped guide sections at the two ends of the limiting edge can effectively guide the covering film to be in smooth transition, the covering film is prevented from being folded or clamped at the corner, it is guaranteed that the covering film slides smoothly and is located accurately, and the service life of the covering film is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of detection technology, and in particular to a device for detecting microbial contamination in dialysis water. Background Technology

[0002] Dialysis water is a critical element in hemodialysis treatment, and its level of microbial contamination directly affects patient health and safety. Therefore, rigorous and frequent microbial contamination testing of dialysis water is a routine and essential procedure for medical institutions. Adenosine triphosphate (ATP) fluorescence detection is widely used in on-site screening for microbial contamination in dialysis water due to its rapid and sensitive characteristics. This technology detects ATP produced by microbial metabolism in the water and uses a luciferase reaction to generate a light signal; the intensity of this signal is positively correlated with the number of microorganisms, thus enabling rapid assessment of microbial contamination.

[0003] Existing ATP fluorescence detection devices typically consist of a main unit containing a detection chamber for holding reagents and samples. An openable outer cover covers the chamber to isolate ambient light interference and ensure accurate results. However, in practical applications, existing technologies have significant drawbacks: the detection chamber, as a critical part directly contacting the sample, is highly susceptible to residual microorganisms, organic matter, or chemical reagents during repeated use. Although operators clean the chamber after each test, thorough disinfection and sterilization are difficult, time-consuming, and carry the risk of incomplete cleaning. These residues can become a source of contamination for subsequent tests, leading to false positives or elevated background values, severely interfering with the assessment of the true contamination status of dialysis water and posing potential risks to dialysis treatment safety. To address cross-contamination, some existing technologies employ disposable trays or coasters in the detection chamber. While this reduces the risk of cross-contamination to some extent, it requires frequent replacement of consumables, increasing operational steps, consumable costs, and waste disposal burden. Furthermore, the replacement process may introduce new contamination risks or operational errors, reducing detection efficiency.

[0004] Therefore, how to effectively solve the problem of cross-contamination in the detection chamber of ATP fluorescence detection equipment without significantly increasing operational complexity and usage costs, and improve the reliability and repeatability of detection results, has become a pressing technical challenge in the field of rapid detection equipment for microbial contamination in dialysis water. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting microbial contamination in dialysis water, so as to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a device for detecting microbial contamination in dialysis water, including an ATP fluorescence detector body. The top of the ATP fluorescence detector body is provided with an outer protective cover. The ATP fluorescence detector body is provided with a detection chamber. The outer protective cover is fastened to the top of the detection chamber. A limiting edge is provided above the detection chamber. A flexible antibacterial membrane is slidably provided within the limiting edge. Multiple through holes are equally spaced in the middle of the flexible antibacterial membrane. The two ends of the flexible antibacterial membrane are respectively fixed on a first rotating shaft and a second rotating shaft. The first rotating shaft and the second rotating shaft are rotatably arranged on both sides of the ATP fluorescence detector body.

[0008] Preferably, the ATP fluorescence detector body is provided with a protective sleeve.

[0009] Preferably, one end of the outer cover is hinged to the ATP fluorescence detector body, and the other end is connected to the ATP fluorescence detector body by a snap-fit.

[0010] Preferably, both ends of the limiting edge are provided with arc-shaped guide sections, and the first rotating shaft and the second rotating shaft are both supported below the arc-shaped guide sections.

[0011] Preferably, the flexible antibacterial coating includes a base film layer, and both sides of the base film layer are coated with an antibacterial layer.

[0012] Preferably, both the first and second rotating shafts extend through the outer side of the ATP fluorescence detector body, and both have knobs at their ends.

[0013] Preferably, the distance between two adjacent through holes is greater than the length of the top of the ATP fluorescence detector body.

[0014] The present invention achieves the following beneficial technical effects compared to the prior art:

[0015] This invention provides a microbial contamination detection device for dialysis water. The antibacterial layer on the surface of the flexible antibacterial membrane covering the detection chamber effectively inhibits the growth of microorganisms at the contact points. Users only need to rotate the first or second rotating shaft to drive the membrane to slide smoothly within the limiting edge, allowing the unused, clean, and sterile through-hole area to quickly and accurately move to the working position above the detection chamber. This avoids the risk of cross-contamination caused by long-term exposure of the detection chamber, ensuring the independence of each test and the reliability of the results. A single roll of membrane can provide multiple detection sites, significantly reducing the replacement frequency of traditional disposable consumables, significantly reducing consumable costs and waste disposal volume, and improving detection efficiency. The arc-shaped guide sections at both ends of the limiting edge effectively guide the membrane to transition smoothly, preventing wrinkles or jamming at corners, ensuring smooth membrane sliding and accurate positioning, and extending the membrane's service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of a dialysis water microbial contamination detection device provided by this utility model;

[0018] Figure 2 This utility model provides an image of a dialysis water microbial contamination detection device in an unused state.

[0019] Figure 3 A diagram illustrating the usage status of a dialysis water microbial contamination detection device provided by this utility model. Detailed Implementation

[0020] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through 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. "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.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The purpose of this invention is to provide a device for detecting microbial contamination in dialysis water, in order to solve the problems existing in the prior art.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1:

[0026] This embodiment provides a device for detecting microbial contamination in dialysis water, such as... Figure 1 As shown, the device includes an ATP fluorescence detector body 1, with an outer cover 2 on top. The body 1 contains a detection chamber 3, and the outer cover 2 is attached above the detection chamber 3. During use, a swab is used for sampling. The sampled swab is inserted into a swab sleeve containing luciferase and luciferin. The swab sleeve is then inserted into the detection chamber 3 for detection. Luciferase reacts with ATP and luciferin to generate a luciferase complex. The fluorescence signal of the luciferase complex is then detected by a fluorescence detector. The intensity of the fluorescence signal is proportional to the ATP content. The ATP content in the sample is determined by measuring the intensity of the fluorescence signal. This structure is a common structure for existing ATP fluorescence detectors, and its specific working principle and usage are well known to those skilled in the art. Therefore, it will not be described in detail in this embodiment. The core improvement of this embodiment compared to the prior art lies in:

[0027] A limiting edge 4 is provided above the detection chamber 3. A flexible antibacterial membrane 5 is slidably provided inside the limiting edge 4. Multiple through holes 6 are equally spaced in the middle of the flexible antibacterial membrane 5. The two ends of the flexible antibacterial membrane 5 are respectively fixed on the first rotating shaft 7 and the second rotating shaft 8. The first rotating shaft 7 and the second rotating shaft 8 can be rotatably set on both sides of the ATP fluorescence detector body 1.

[0028] By adopting the above solution, users only need to rotate the first or second rotating shaft to drive the flexible antibacterial coating 5 to slide smoothly within the limiting edge 4, so that the unused, clean and sterile through-hole 6 area can be quickly and accurately moved to the working position above the detection chamber. This avoids the risk of cross-contamination caused by long-term exposure of the detection chamber, ensures the independence of each test and the reliability of the results, and a single roll of coating can provide multiple detection sites, which greatly reduces the replacement frequency of traditional disposable consumables, significantly reduces consumable costs and waste disposal volume, and improves detection efficiency.

[0029] As one implementation method, the ATP fluorescence detector body 1 is provided with a protective sleeve to protect the instrument.

[0030] In one embodiment, one end of the outer cover 2 is hinged to the ATP fluorescence detector body 1, and the other end is connected to the ATP fluorescence detector body 1 by a snap-fit, which facilitates opening and closing.

[0031] As one implementation method, arc-shaped guide sections 9 are provided at both ends of the limiting edge 4. The first rotating shaft 7 and the second rotating shaft 8 are both supported below the arc-shaped guide sections 9. The arc-shaped guide sections 9 can effectively guide the film to transition smoothly, prevent wrinkles or jamming at the corners, ensure smooth film sliding and accurate positioning, and extend the service life of the film.

[0032] As one implementation method, the flexible antibacterial coating 5 includes a base film layer, and both sides of the base film layer are coated with an antibacterial layer. The antibacterial layer can be, for example, a silver ion antibacterial coating or a polymer organic antibacterial coating, which can be obtained by coating with a corresponding antibacterial agent.

[0033] In one embodiment, the first rotating shaft 7 and the second rotating shaft 8 are both disposed on the outside of the ATP fluorescence detector body 1, and both are provided with knobs 10 at their ends for easy rotation.

[0034] As one implementation, the spacing between two adjacent through holes 6 is greater than the length of the top of the ATP fluorescence detector body 1 to ensure complete coverage of the detection area.

[0035] 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.

[0036] It should be noted that the components mentioned in the above embodiments are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0037] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for detecting microbial contamination in dialysis water, comprising an ATP fluorescence detector body, wherein the top of the ATP fluorescence detector body is provided with an outer protective cover, the ATP fluorescence detector body is provided with a detection chamber, and the outer protective cover is fastened to the top of the detection chamber, characterized in that: The detection chamber is provided with a limiting edge above it, and a flexible antibacterial membrane is slidably provided within the limiting edge. The flexible antibacterial membrane has multiple through holes at equal intervals in its middle part. The two ends of the flexible antibacterial membrane are respectively fixed on a first rotating shaft and a second rotating shaft. Both the first rotating shaft and the second rotating shaft are rotatably arranged on both sides of the ATP fluorescence detector body.

2. The dialysis water microbial contamination detection device according to claim 1, characterized in that: The ATP fluorescence detector body is covered with a protective sleeve.

3. The dialysis water microbial contamination detection device according to claim 1, characterized in that: One end of the outer cover is hinged to the main body of the ATP fluorescence detector, and the other end is connected to the main body of the ATP fluorescence detector by a snap fastener.

4. The dialysis water microbial contamination detection device according to claim 1, characterized in that: Both ends of the limiting edge are provided with arc-shaped guide sections, and the first rotating shaft and the second rotating shaft are both supported below the arc-shaped guide sections.

5. The dialysis water microbial contamination detection device according to claim 1, characterized in that: The flexible antibacterial coating includes a base film layer, and both sides of the base film layer are coated with an antibacterial layer.

6. The dialysis water microbial contamination detection device according to claim 1, characterized in that: Both the first and second rotating shafts extend through the outer side of the ATP fluorescence detector body, and both have knobs at their ends.

7. The dialysis water microbial contamination detection device according to claim 1, characterized in that: The distance between two adjacent through holes is greater than the length of the top of the ATP fluorescence detector body.

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