A contamination-proof sample dispensing device for in vitro diagnostic reagents

Abstract

This utility model relates to the field of sampling equipment technology and provides an in vitro diagnostic reagent anti-contamination sample dispensing device, comprising: a syringe; a three-way connector, the first end of which is connected to the injection port of the syringe; a first flexible tube and a second flexible tube, respectively connected to the second and third ends of the three-way connector; a sealing cover connected to the end of the first flexible tube; the second flexible tube is connected to a diagnostic reagent container through a connection interface, thereby communicating with the diagnostic reagent container. This utility model connects the syringe to the three-way connector, fixes the sealing cover to the end of the first flexible tube, and inserts the second flexible tube into the sealing cap of the reagent container through the connection interface. During operation, the reagent is transferred through a closed system consisting of the first flexible tube, the three-way connector, the syringe, the second flexible tube, and the sealing cover by drawing or pushing the reagent with the syringe. The reagent does not come into contact with air from the reagent container to the detection tank, avoiding inaccurate test results caused by contamination during reagent transfer.

Description

Technical Field

[0001] This utility model relates to the field of sampling equipment technology, and more specifically, to an in vitro diagnostic reagent anti-contamination sampling device. Background Technology

[0002] The addition of in vitro diagnostic reagents requires strict avoidance of contamination. Current techniques often involve directly drawing reagents from the container using open pipettes or syringes and then injecting them into the detection chamber. This method has significant drawbacks:

[0003] High risk of contamination: Reagents exposed to air are susceptible to contamination by environmental particles or microorganisms;

[0004] Volatile loss: Open operation leads to the escape of volatile components, affecting the accuracy of detection;

[0005] Cross-contamination: Residue from previous reagents may remain when sample dispensing equipment comes into contact with different containers;

[0006] Poor operational safety: Highly corrosive or biohazardous reagents may splash and endanger operators. Utility Model Content

[0007] The problem this invention addresses is: how to keep in vitro diagnostic reagents sealed during diagnostic testing to prevent contamination.

[0008] To address the above problems, this utility model provides an in vitro diagnostic reagent anti-contamination sample dispensing device, comprising:

[0009] syringe;

[0010] A three-way connector, the first end of which is connected to the injection port of the syringe;

[0011] The first hose and the second hose are respectively connected to the second end and the third end of the three-way pipe;

[0012] A sealing cover is attached to the end of the first hose;

[0013] The second tubing is connected to the diagnostic reagent container via a connection interface, thereby enabling communication between the diagnostic reagent container and the second tubing.

[0014] Optionally, the connection interface is connected to the end of the second tubing, and a connecting plug is provided at its axis for connecting to the diagnostic reagent container.

[0015] Optionally, the top of the diagnostic reagent container is detachably fitted with a sealing cap;

[0016] The sealing cap has an upwardly protruding tube, and the tube contains a plurality of horizontally arranged elastic bodies, which are distributed in a circumferential array to seal the tube.

[0017] The connector can be inserted into the tube of the sealing cap to connect the diagnostic reagent container to the second tubing.

[0018] Optionally, the elastomer is fan-shaped, and the edges of each elastomer abut against each other to form a closed plane.

[0019] Optionally, the elastomer is made of silicone or rubber.

[0020] Optionally, the tube body of the sealing cap and the connection interface are interference fit.

[0021] Optionally, the bottom of the sealing cover is provided with an adhesive layer, and the bottom of the adhesive layer is covered with a removable protective layer.

[0022] Optionally, the first hose and the second hose are respectively provided with a first hose clamp and a second hose clamp.

[0023] Optionally, when the second clamp is opened, the syringe draws the diagnostic reagent through the second tubing;

[0024] When the first clamp is opened, the syringe injects the reagent into the sealing cap through the first tubing.

[0025] Compared with the prior art, the in vitro diagnostic reagent anti-contamination sample dispensing device of this utility model has the following beneficial effects:

[0026] This invention connects a syringe to a three-way connector, with a sealing cap fixed to the end of a first flexible tube, and a second flexible tube inserted into the sealing cap of a reagent container via a connection interface. During operation, reagent is transferred through a closed system consisting of the first flexible tube, the three-way connector, the syringe, the second flexible tube, and the sealing cap by drawing or pushing the reagent with the syringe. The reagent does not come into contact with air during transfer from the reagent container to the detection tank, avoiding inaccurate test results due to contamination during reagent transfer. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an in vitro diagnostic reagent anti-contamination sample dispensing device according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the connection interface inserted into the diagnostic reagent container in an embodiment of this utility model;

[0029] Figure 3 for Figure 1 Enlarged view of a portion of point A in the middle;

[0030] Figure 4 This is a top view of the sealing cap in an embodiment of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100. Syringe; 110. Three-way connector; 120. First tubing; 130. First clamp; 140. Sealing cover; 141. Adhesive layer; 142. Protective layer; 150. Second tubing; 160. Second clamp; 170. Connecting interface; 171. Connecting plug; 200. Diagnostic reagent container; 210. Sealing cap; 211. Elastomer. Detailed Implementation

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0034] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction, specifically the left and right positions, with the positive direction of the X-axis representing the right side and the negative direction representing the left side. The Y-axis represents the front and back positions, with the positive direction of the Y-axis representing the rear and the negative direction representing the front. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for ease of description and simplification of the present invention, and do not indicate or imply that the device or component 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 the present invention.

[0035] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0038] like Figures 1 to 4 As shown, this utility model embodiment provides an in vitro diagnostic reagent anti-contamination sample dispensing device, comprising:

[0039] 100 syringes;

[0040] The first end of the three-way tube 110 is connected to the injection port of the syringe 100;

[0041] The first flexible hose 120 and the second flexible hose 150 are respectively connected to the second end and the third end of the tee pipe 110;

[0042] A sealing cover 140 is connected to the end of the first flexible hose 120;

[0043] The second tubing 150 is connected to the diagnostic reagent container 200 via the connection interface 170, thereby enabling communication between the diagnostic reagent container 200 and the second tubing 150.

[0044] Specifically, the syringe 100 is connected to the three-way connector 110, the end of the first flexible tube 120 is fixed with a sealing cover 140, and the second flexible tube 150 is inserted into the sealing cap 210 of the reagent container 200 through the connection interface 170. During operation, the syringe 100 draws or pushes the reagent, transferring it within the closed system formed by the first flexible tube 120, the three-way connector 110, the syringe 100, the second flexible tube 150, and the sealing cover 140. Furthermore, the sealing cover 140 is fixed to the periphery of the detection slot of the reagent detection device (e.g., an HCG detection card), preventing the reagent from contacting air during the transfer from the reagent container 200 to the detection slot, thus avoiding inaccurate test results due to contamination during reagent transfer.

[0045] The connection interface 170 is connected to the end of the second tubing 150, and a connecting plug 171 is provided at its axis for connecting to the diagnostic reagent container 200.

[0046] The diagnostic reagent container 200 has a removable sealing cap 210 on its top;

[0047] The sealing cap 210 has an upwardly protruding tube body, inside which are multiple horizontally arranged elastic bodies 211. These elastic bodies 211 are arranged in a circumferential array to seal the tube body. In this embodiment, the elastic bodies 211 are made of silicone or rubber. The elastic bodies 211 are fan-shaped, with the edges of each elastic body 211 abutting against each other to form a sealed plane. The fan-shaped elastic bodies 211 fit seamlessly when assembled; they elastically deform when the plug is inserted and automatically return to their sealed position after being pulled out.

[0048] The connector 171 can be inserted into the tube of the sealing cap 210 to connect the diagnostic reagent container 200 with the second tubing 150.

[0049] By vertically inserting the connector 171 into the tube of the reagent container sealing cap 210 until the connector is in close contact with the elastomer 211, it is ensured that the connection is established upon insertion, avoiding reagent exposure caused by manual opening of the cap and ensuring the safety of reagent transfer.

[0050] When not connected, the elastomer 211 self-closes and seals the tube; when the connecting plug 171 is inserted, the elastomer is radially pushed open to form a channel. The elastomer 211 is normally closed, isolating air; it automatically opens upon insertion, requiring no additional operation and simplifying the process.

[0051] The tube body of the sealing cap 210 and the connection interface 170 are interference fit.

[0052] Specifically, when inserting the 170 connector, a little force is required to ensure that the outer wall of the connector is tightly pressed against the inner wall of the tube, thus ensuring a stable connection during operation and preventing accidental disconnection that could lead to reagent leakage.

[0053] The bottom of the sealing cover 140 is provided with an adhesive layer 141, and the bottom of the adhesive layer 141 is covered with a removable protective layer 142.

[0054] Specifically, the protective layer 142 is removed, and the adhesive layer 141 is attached to the inlet of the detection tank; the reagent is injected into the detection tank through the sealing cover 140, and the entire process is sealed.

[0055] The adhesive layer 141 isolates the test tank from the outside world, preventing reagents from being contaminated by the outside world during testing and ensuring the reliability of the test results.

[0056] The first hose 120 and the second hose 150 are respectively provided with a first hose clamp 130 and a second hose clamp 160.

[0057] When the second clamp 160 is opened, the syringe 100 draws the diagnostic reagent through the second tubing 150.

[0058] When the first clamp 130 is opened, the syringe 100 injects the reagent into the sealing cover 140 through the first tubing 120.

[0059] Specifically, the second clamp 160 is first left unclamped, and the diagnostic reagent in the diagnostic reagent container 200 is extracted using the syringe 100. Then, the second tubing 150 is blocked by the second clamp 160, and the first clamp 130 is left unclamped. The diagnostic reagent is then injected through the first tubing 120 into the sealing cover 140 and then into the reagent sample tank. This ensures that the diagnostic reagent does not come into contact with the outside world during the entire testing process, thus improving the reliability of the test results.

[0060] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An in-vitro diagnostic reagent anti-pollution sample loading device, characterized by, include: Syringe (100); A three-way tube (110) is connected at its first end to the injection port of the syringe (100); The first hose (120) and the second hose (150) are respectively connected to the second end and the third end of the three-way pipe (110); A sealing cover (140) is connected to the end of the first hose (120); The second tubing (150) is connected to the diagnostic reagent container (200) via a connection interface (170), so that the diagnostic reagent container (200) is in communication with the second tubing (150).

2. The pollution-preventing sample adding device for in-vitro diagnostic reagent according to claim 1, characterized in that, The connection interface (170) is connected to the end of the second hose (150), and a connecting plug (171) is provided at its axis for connecting to the diagnostic reagent container (200).

3. The pollution-preventing sample adding device for in-vitro diagnostic reagent according to claim 2, characterized in that, The diagnostic reagent container (200) is detachably fitted with a sealing cap (210) on top. The sealing cap (210) has an upwardly protruding tube, and the tube contains a plurality of horizontally arranged elastic bodies (211), which are arranged in a circumferential array to seal the tube. The connector (171) can be inserted into the tube of the sealing cap (210) to connect the diagnostic reagent container (200) with the second tubing (150).

4. The pollution-preventing sample adding device for in-vitro diagnostic reagent according to claim 3, characterized in that, The elastomer (211) is fan-shaped, and the edges of each elastomer (211) abut against each other to form a closed plane.

5. The pollution-preventing sample adding device for in-vitro diagnostic reagent according to claim 3, characterized in that, The elastomer (211) is made of silicone or rubber.

6. The pollution-preventing sample adding device for in-vitro diagnostic reagent according to claim 3, characterized in that, The tube body of the sealing cap (210) and the connecting interface (170) are interference fit.

7. The pollution-preventing sample adding device for in-vitro diagnostic reagent according to claim 1, characterized in that, The bottom of the sealing cover (140) is provided with an adhesive layer (141), and the bottom of the adhesive layer (141) is covered with a removable protective layer (142).

8. The pollution-preventing sample adding device for in-vitro diagnostic reagent according to claim 1, characterized in that, The first hose (120) and the second hose (150) are respectively provided with a first hose clamp (130) and a second hose clamp (160).

9. The in vitro diagnostic reagent anti-contamination sample dispensing device according to claim 8, characterized in that, When the second clamp (160) is opened, the syringe (100) draws the diagnostic reagent through the second tubing (150); When the first clamp (130) is opened, the syringe (100) injects the reagent into the sealing cover (140) through the first tubing (120).

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