Multi-union pipe for preventing splashing of liquid to be detected
By designing a splash-proof funnel in the multi-tube test tube, the contamination problem caused by liquid splashing is solved, and the accuracy and reliability of the test results are improved without increasing the difficulty of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING CHEST HOSPITAL CAPITAL MEDICAL UNIV
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-23
Smart Images
Figure CN224388835U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of testing equipment technology, and in particular to a multi-tube for preventing the liquid to be tested from splashing out. Background Technology
[0002] Multi-tubes are a common testing consumable, frequently used in molecular biology experiments such as PCR (Polymerase Chain Reaction). Specifically, multi-tubes can be used for DNA (Deoxyribonucleic Acid) or RNA (ribonucleic acid) amplification experiments, real-time quantitative PCR experiments, or high-throughput experiments. They can also be used for short-term storage of PCR products or other biological samples. However, in actual testing, it may be necessary to open the cap multiple times to add reagents to the tubes. When opening the cap, the liquid inside the tube is prone to splashing, which may contaminate the liquid in adjacent or other tubes from the same batch, interfering with the test results of other tubes. Utility Model Content
[0003] This application discloses a multi-tube system for preventing the test liquid from splashing out. By adding a splash shield to the test tube of the multi-tube system, the possibility of the test liquid splashing out due to external force opening the test tube before adding liquid to the test tube is reduced, thereby reducing the possibility of the test liquid splashing out and causing pollution or forming aerosol pollution.
[0004] To achieve the above objectives, this application discloses a multi-tube system for preventing the test liquid from splashing out. The system includes multiple interconnected test tubes, each with a first receiving cavity. Each first receiving cavity contains a splash guard, which is integrally formed with the test tube. The splash guard includes a first opening and a second opening. The first opening is used to receive the test liquid, and the second opening communicates with the first receiving cavity to deliver the test liquid to the first receiving cavity. The opening area of the second opening is smaller than the diameter of the test tube. Multiple interconnected caps correspond one-to-one with the multiple interconnected test tubes, and each cap is used to open or close one of the test tubes.
[0005] In one possible implementation, the number of test tubes and caps is 6-12.
[0006] In one possible implementation, the ratio of the length of the splash guard to the length of the test tube along the axial direction of the test tube is M, where 1 / 6 ≤ M ≤ 1 / 4.
[0007] In one possible implementation, two adjacent caps are connected by at least two first connecting ribs that extend along an arc and are symmetrically arranged with respect to the center line of the connection direction of the plurality of caps.
[0008] In one possible implementation, the first connecting rib and the cap are an integral structure.
[0009] In one possible implementation, two adjacent test tubes are connected by a second connecting rib, which is an integral part of the test tube.
[0010] In one possible implementation, the first opening of the splash guard is connected to the open end of the test tube; the cap includes an insertion part that can be inserted into the test tube from the test tube opening, and the ratio of the length of the insertion part to the length of the test tube along the axial direction of the test tube is N, where 1 / 8 ≤ N ≤ 1 / 5.
[0011] In one possible implementation, the splash guard includes a splash guard surface connected to the first opening and the second opening, the splash guard surface being located within the first receiving cavity and inclined relative to the central axis of the test tube.
[0012] In one possible implementation, the test tube, the splash guard, and the tube cap are all light-transmitting components.
[0013] Compared with existing technologies, the advantages of this application are: the addition of a splash guard in the multi-tube design reduces the possibility of contamination caused by splashing of the test liquid or aerosol drift due to external force when opening the tube cap, without increasing the difficulty of adding liquid. Furthermore, the integrated structure of the splash guard and test tube eliminates the need to add the splash guard directly to the test tube, thus avoiding contamination of the splash guard during operation and indirectly improving the accuracy of the test results.
[0014] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of multiple interconnected test tubes in a multi-tube assembly to prevent the liquid to be tested from splashing out, provided in an embodiment of this application.
[0017] Figure 2 A top view of a cap for a multi-unit tube that prevents the liquid to be tested from splashing out, provided in an embodiment of this application;
[0018] Figure 3 This is a side view of a cap for a multi-unit tube that prevents the liquid to be tested from splashing out, as provided in an embodiment of this application.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1-A multi-tube to prevent the test liquid from splashing out; 10-A test tube; 101-First receiving cavity; 20-A tube cap; 201-Insertion part; 30-Anti-splash funnel; 301-First opening; 302-Second opening; 40-First connecting rib; 50-Second connecting rib. Detailed Implementation
[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0022] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0023] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0024] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0025] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.
[0026] This application provides a multi-tube 1 to prevent the liquid to be tested from splashing out, such as... Figure 1 As shown. The multi-tube 1 for preventing the test liquid from splashing includes multiple interconnected test tubes 10. Each test tube 10 has a first receiving cavity 101. Each first receiving cavity 101 is provided with a splash shield 30. The splash shield 30 is an integral structure with the test tube 10. The splash shield 30 includes a first opening 301 and a second opening 302. The first opening 301 is used to receive the test liquid. The second opening 302 is connected to the first receiving cavity 101 to transport the test liquid to the first receiving cavity 101. The opening area of the second opening 302 is smaller than the diameter of the test tube 10.
[0027] Specifically, the multi-tube 1 and the anti-splash container 30, which prevent the test liquid from splashing out, are manufactured in one piece. When the test liquid is added to the test tube 10, the test liquid flows into the first opening 301 of the anti-splash container 30 through the test tube opening, and then flows into the first receiving cavity 101 through the second opening 302 along the inner wall of the anti-splash container 30. The first receiving cavity 101 is used to receive and store the test liquid.
[0028] The multi-tube 1, which prevents the test liquid from splashing out, includes multiple connected tube caps 20, which correspond one-to-one with multiple connected test tubes 10. Each tube cap 20 is used to open or close a test tube 10.
[0029] Specifically, the cap 20 and test tube 10 are designed to be opened and closed multiple times. The cap 20 and test tube 10 cooperate to make the first receiving cavity 101 a sealed chamber, and the splash guard 30 is disposed inside the first receiving cavity 101. When the cap 20 inserted into the test tube 10 is separated from the test tube 10, under the action of external force, the test liquid in the test tube 10 will splash towards the mouth of the test tube, and the aerosol in the sealed first receiving cavity 101 of the test tube 10 will also drift towards the mouth of the test tube. Since the second opening 302 of the splash guard 30 is smaller than the diameter of the test tube 10, the splash guard 30 can shield the splashed droplets or drifting aerosol when the above situation occurs, reducing the possibility of droplets or aerosol contaminating the pipette or other test tubes.
[0030] Thus, the design of the anti-splash funnel 30 reduces the possibility of the test liquid splashing out of the test tube 10 and causing contamination or aerosol contamination when the test tube 10 is opened, without increasing the difficulty of adding liquid. In addition, the integrated structure of the anti-splash funnel 30 and the test tube 10 eliminates the need to add the anti-splash funnel 30 into the test tube 10, reducing the possibility of contaminating the anti-splash funnel 30 during operation and indirectly improving the accuracy of the test results.
[0031] In the above embodiments, the number of test tubes 10 and caps 20 in the multi-tube 1 that prevents the test liquid from splashing out is 6-12.
[0032] Specifically, the number of test tubes 10 should correspond one-to-one with the number of tube caps 20. Depending on the quantity of the solution to be tested, multi-tube sets with different numbers of test tubes are selected. In practical applications, multi-tube sets with eight test tubes 10 and eight tube caps 20 are more common. Using multi-tube sets allows for simultaneous testing of multiple sets of results, reducing operational errors, enhancing the consistency of test results, and improving testing efficiency.
[0033] In the above embodiment, along the axial direction of the test tube 10 in the multi-tube 1 that prevents the liquid to be tested from splashing out, the ratio of the length of the anti-splash funnel 30 to the length of the test tube 10 is M, where 1 / 6 ≤ M ≤ 1 / 5.
[0034] Specifically, the first opening 301 of the splash guard 30 should be lower than the test tube opening, and the second opening 302 should be above the liquid surface of the test liquid in the first receiving cavity 101. Therefore, along the axial direction of the test tube 10, the ratio M of the length of the splash guard 30 to the length of the test tube 10 satisfies: 1 / 6 ≤ M ≤ 1 / 5. Simultaneously, the splash guard 30 should be positioned at the end of the test tube 10 closest to the test tube opening to ensure sufficient volume in the first receiving cavity 101 for storing and receiving the test liquid.
[0035] In the above embodiment, two adjacent caps 20 in the multi-connector 1, which prevents the liquid to be tested from splashing out, are connected by at least two first connecting ribs 40. The first connecting ribs 40 extend along an arc, and the at least two first connecting ribs 40 are symmetrically arranged with respect to the center line of the connection direction of the multiple caps 20.
[0036] Specifically, at least two first connecting ribs 40 can improve the connection stability of two adjacent caps 20. The arc-shaped design of the first connecting ribs 40 can disperse the external force when opening the caps 20, reduce stress concentration, and thus improve the durability of the first connecting ribs 40. At the same time, the arc-shaped design can avoid the possibility of scratching the staff's gloves or scratching the test tubes, causing contamination.
[0037] In the above embodiment, two adjacent test tubes 10 in the multi-tube 1 that prevent the test liquid from splashing out are connected by a second connecting rib 50, and the second connecting rib 50 and the test tube 10 are an integral structure.
[0038] Specifically, the second connecting rib 50 connects two adjacent test tubes 10 in the multi-tube 1 to prevent the test liquid from splashing out. This allows for the use of multi-channel pipettes to simultaneously add liquid to multiple test tubes 10, reducing the need for repetitive operations and improving worker efficiency. The integrated structure of the second connecting rib 50 and the test tube 10 enhances the stability of the connection between the test tubes 10 and reduces the risk of breakage between adjacent test tubes 10.
[0039] In the above embodiment, the first opening 301 of the anti-splash funnel 30 of the multi-tube 1, which prevents the liquid to be tested from splashing out, is connected to the open end of the test tube 10.
[0040] Specifically, the test tube 10 and the splash guard 30 are manufactured in one piece. The open end of the test tube 10 is connected to the first opening 301 of the splash guard 30, eliminating the step of adding the splash guard 30 into the test tube 10. This avoids the possibility of contaminating the splash guard 30 due to operational errors, thus preventing contamination of the test solution. The first opening 301 of the splash guard 30 is lower than the open end of the test tube 10, thereby ensuring that the possibility of splashing the test solution is reduced without changing the difficulty of adding liquid to the test tube 10.
[0041] In the above embodiments, such as Figure 3 As shown, the cap 20 of the multi-tube 1 that prevents the test liquid from splashing out includes an insertion part 201. The insertion part 201 can be inserted into the test tube 10 from the test tube opening. Along the axial direction of the test tube 10, the ratio of the length of the insertion part 201 to the length of the test tube 10 is N, where 1 / 8 ≤ N ≤ 1 / 5.
[0042] Specifically, when the insertion part 201 of the cap 20 is fully inserted into the test tube 10, the end of the insertion part 201 closest to the bottom of the test tube 10 should be higher than the first opening 301 of the splash guard 30 to reduce the contact between the cap 20 and the splash guard 30 and reduce the possibility of contamination. The ratio N of the length of the insertion part 201 to the length of the test tube 10 satisfies: 1 / 8 ≤ N ≤ 1 / 5, so as to simultaneously meet the requirements of sealing and leaving sufficient storage space for the liquid to be tested.
[0043] In the above embodiment, the anti-splash hopper 30 of the multi-tube 1 that prevents the liquid to be tested from splashing out includes an anti-splash surface. The anti-splash surface is connected to the first opening 301 and the second opening 302. The anti-splash surface is located in the first receiving cavity 101 and is inclined relative to the central axis of the test tube 10.
[0044] Specifically, the inclined anti-splash surface can prevent the test liquid from splashing outward when the test tube 10 is opened, thereby reducing the possibility of splashed liquid or drifting aerosol contaminating the pipette or other test tubes 10. By using the anti-splash surface to shield the aerosol floating inside the test tube 10 or the splashed test liquid, the risk of contaminating other test tubes and the test liquid in other test tubes is reduced, thus improving the reliability of the test results.
[0045] In the above embodiments, the test tube 10, splash shield 30, and tube cap 20 in the multi-tube 1 that prevents the liquid to be tested from splashing out are all light-transmitting components.
[0046] Specifically, the test tube 10, the splash guard 30, and the cap 20 are all made of light-transmitting material, which facilitates observation of the state of the test liquid in the sealed first containment cavity 101, and allows for accurate understanding of the state of the test liquid, including its color, volume, etc.
[0047] Thus, the multi-tube 1, which prevents the test liquid from splashing out, reduces the possibility of contamination of the test liquid by adding a splash shield 30 inside the test tube 10, thereby improving the reliability of the test results; the integrated cap 20 can reduce contact with the cap 20 during operation, thereby reducing contamination of the cap 20 and ensuring the purity of the test liquid.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A multi-unit tube for preventing splashing of the test liquid, characterized in that, include: Multiple interconnected test tubes, each test tube having a first receiving cavity, each first receiving cavity having a splash guard, the splash guard being an integral structure with the test tube, the splash guard including a first opening and a second opening, the first opening for receiving the test liquid, the second opening communicating with the first receiving cavity to deliver the test liquid to the first receiving cavity, the opening area of the second opening being smaller than the diameter of the test tube; Multiple connected caps correspond one-to-one with multiple connected test tubes, and each cap is used to open or close one of the test tubes.
2. The multi-tube for preventing splashing of the test liquid according to claim 1, characterized in that, The number of test tubes and caps is 6-12.
3. The multi-tube for preventing splashing of the test liquid according to claim 1, characterized in that, Along the axial direction of the test tube, the ratio of the length of the splash guard to the length of the test tube is M, where 1 / 6 ≤ M ≤ 1 / 4.
4. The multi-unit tube for preventing splashing of the test liquid according to claim 1, characterized in that, Two adjacent caps are connected by at least two first connecting ribs, which extend along an arc and are symmetrically arranged with respect to the center line of the connection direction of the plurality of caps.
5. The multi-tube for preventing splashing of the test liquid according to claim 4, characterized in that, The first connecting rib and the pipe cap are an integral structure.
6. The multi-tube for preventing splashing of the test liquid according to claim 1, characterized in that, Two adjacent test tubes are connected by a second connecting rib, which is an integral part of the test tube.
7. The multi-tube for preventing splashing of the test liquid according to claim 1, characterized in that, The first opening of the splash guard is connected to the open end of the test tube; The cap includes an insertion part that can be inserted into the test tube from the test tube opening. Along the axial direction of the test tube, the ratio of the length of the insertion part to the length of the test tube is N, where 1 / 8 ≤ N ≤ 1 / 5.
8. The multi-tube for preventing splashing of the test liquid according to claim 1, characterized in that, The splash guard includes: A splash-proof surface is connected to the first opening and the second opening. The splash-proof surface is located within the first receiving cavity and is inclined relative to the central axis of the test tube.
9. The multi-tube for preventing splashing of the test liquid according to any one of claims 1 to 8, characterized in that, The test tube, the splash guard, and the tube cap are all light-transmitting components.