Contact prevention sampling test tube

Abstract

The utility model provides a kind of contact prevention sampling test tube, including telescopic swab and test tube body, the telescopic swab is equipped with first telescopic rod, second telescopic rod and handheld component, first telescopic rod is equipped with lug, second telescopic rod is equipped with recess, first telescopic rod and second telescopic rod are fixedly connected extension by the engagement of lug and recess, lug can slide out from recess under the action of external force, second telescopic rod moves downward, first telescopic rod moves upward, swab shortens, the test tube body is equipped with test tube cap and sample addition groove.Sample is completed, without breaking swab, solve the problem of sample splashing and pollution caused when cotton swab is broken, also avoid the pollution of operator to sample;Meanwhile, without carrying out the opening and locking of test tube and other operations, simplify the experiment process, improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a contactless sampling tube. Background Technology

[0002] Sampling tubes are a common experimental device used in various tests to contain samples, preliminarily mix the samples and extract solvents, and, if necessary, perform preliminary sample disruption. A typical sampling tube is a round tube closed at one end and open at the other. During sampling, secretions are collected by repeatedly swabbing the throat, nasal cavity, and other areas of the subject with a long, sterile cotton swab. The swab is then broken and placed into the tube for preservation.

[0003] When using long, sterile cotton swabs, staff need to remove them from the sealed bag, repeatedly wipe the mouth and nose of the person being tested, place the swab into a test tube, break off the excess, and then seal the test tube. This process involves several steps. If a staff member accidentally drops the swab or it comes into contact with the test tube opening or outer wall, it can easily lead to the spread of germs and potentially inaccurate test results. Furthermore, breaking off the excess swab does not completely guarantee that the swab is uncontaminated and wastes resources, increasing the workload of collecting and cleaning up broken swabs. Therefore, it is necessary to find a new contactless collection tube to reduce the possibility of contamination during the collection process. Utility Model Content

[0004] To address the problems of existing technologies, this utility model provides a contact-proof collection tube that combines a retractable swab with a collection tube. The retractable swab has a first retractable rod and a second retractable rod, which are connected and retracted via protrusions and grooves at their retractable ends. In use, the retractable swab collects samples in its extended state; after collection, it is placed in the test tube and retracted by external force, eliminating the need to break the swab. Furthermore, a sealing cap is provided at the handle of the swab to ensure that the retractable tube is not contaminated due to improper handling during use. Simultaneously, the test tube has a cap that matches the sealing cap, further preventing contamination from contact between the collected sample and the test tube wall.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On one hand, the present invention provides a contactless sampling tube, including a telescopic swab and a tube body. The telescopic swab includes a first telescopic rod, a second telescopic rod, and a handheld component. The first telescopic rod includes a first telescopic end and a collection end. The second telescopic rod includes a second telescopic end and a handheld end. The first telescopic end of the first telescopic rod is provided with a protrusion, and the second telescopic end of the second telescopic rod is provided with a groove. The protrusion and the groove engage to connect the first telescopic rod and the second telescopic rod.

[0007] Existing sample collection methods use long cotton swabs, which require breaking the swab after sampling and placing the collection end into the test tube before discarding the hand end. This process is prone to accidents such as swabs falling or becoming contaminated, leading to inaccurate test results and low efficiency. To achieve a better aseptic collection process, this invention improves the structure of the collection swab by using a telescopic swab instead of the existing cotton swab, thus avoiding the step of breaking the swab after collection and storing the sample.

[0008] The telescopic swab provided by this utility model includes a first telescopic rod, a second telescopic rod, and a handheld component. The first telescopic end of the first telescopic rod has a protrusion, and the second telescopic end of the second telescopic rod has a groove, the depth of which matches the height of the protrusion. When the swab extends, the protrusion engages with the groove, fixing the first and second telescopic rods together. During production, the telescopic swab and the test tube body are packaged separately, with the first and second telescopic rods connected to form the extended swab. Therefore, in use, one only needs to take the swab out of the packaging bag for sampling. After collection, one end of the swab is placed into the test tube, and the handheld component is pinched and pressed downwards. The first telescopic end of the first telescopic rod slides out of the groove on the second telescopic rod, the second telescopic rod slides downwards, and the first telescopic rod moves upwards. After the second telescopic rod slides down, it forms a sleeve structure with the first telescopic rod, shortening the swab length to a retracted state.

[0009] Because the handle of the telescopic swab is equipped with a sealing cap, the operator will not come into contact with the first or second telescopic rods and cause contamination when pressing down. Furthermore, since the sealing cap fits snugly against the test tube cap after retraction, and the distance between the sealing cap and the second telescopic end of the second telescopic rod is less than the length of the first telescopic rod, the second telescopic end of the second telescopic rod will not come into contact with the swab after retraction. In addition, the first and second telescopic rods are made of PP material, which has high rigidity, so they will not deform or break under stress.

[0010] The telescopic swab provided by this invention can be directly shortened in length without breaking during use, thus solving the problem of sample splattering and contamination caused by broken swabs. Furthermore, the operator does not come into contact with the telescopic rod of the swab, thereby avoiding sample contamination and improving the accuracy of subsequent test results. At the same time, this invention also solves the problem of needing to collect and clean up broken swabs in existing technologies, greatly improving work efficiency and reducing resource waste.

[0011] Furthermore, the protrusion height of the bump is the same as the depth of the groove, and the handheld end of the second telescopic rod is connected to the handheld component by welding.

[0012] Furthermore, the diameter of the second telescopic rod is larger than that of the first telescopic rod, and the length of the first telescopic rod is greater than that of the second telescopic rod.

[0013] Furthermore, the handheld component includes a handheld part and a sealing cap, the diameter of which is larger than that of the handheld part.

[0014] The first and second telescopic rods of the telescopic swab provided by this utility model have diameters significantly smaller than the test tube diameter, while the diameter of the handle is generally larger, making it more convenient for operators to handle the telescopic swab. Simultaneously, a sealing cap is provided at the position of the handle, with a diameter matching that of the test tube cap. The sealing cap serves two purposes: first, it prevents the operator's fingers from contacting the lower second telescopic rod during use, avoiding contamination; second, after the telescopic swab is inserted into the test tube, the sealing cap fits snugly against the test tube cap, thus sealing the test tube and preventing sample contamination. Compared to existing test tube collection methods, this utility model completes the sealing of the test tube immediately after the swab is inserted, eliminating the need to open and then lock the test tube, simplifying the operation and improving work efficiency.

[0015] Furthermore, the test tube body is provided with a test tube cap, and the diameter of the sealing cap is the same as the diameter of the test tube cap.

[0016] The purpose of attaching a cap to the test tube body is twofold: firstly, to match and fit the cap with the sealing cap on the telescopic swab, thus sealing the test tube after sampling and preventing contamination of the sample; secondly, to prevent contamination from contact between the swab and the outer circumference of the test tube due to improper handling when inserting the swab.

[0017] Furthermore, the outer circular surface of the test tube body is provided with a sample loading groove, the bottom of the test tube body is provided with a circular hole, and the interior of the test tube body is connected to the sample loading groove through the circular hole.

[0018] Existing sampling tubes require adding elution reagent to the tube before placing the sampled swab inside and eluting the sample by squeezing the tube. This process not only fails to ensure complete elution of the sample but also risks reagent spillage, wasting time and materials. This invention features a U-shaped sample loading groove on the outer circumference of the tube, located near the bottom. The tube's interior and the groove are connected via a circular hole at the bottom. In use, after placing the sampled swab inside, 1.5 ml of elution reagent is added through the groove. The reagent then flows back into the tube through the hole. The tube is then shaken to elute the sample. The addition of sufficient elution reagent ensures complete elution. Furthermore, the U-shaped groove is designed to be at least 25 mm deep, preventing reagent from spilling out during the elution process. Compared to existing sampling tubes, the addition of a sample dispensing groove eliminates the need to squeeze the tube to wash out the sample, simplifying the process and reducing the possibility of contamination.

[0019] Furthermore, the depth of the sample loading groove is greater than 25 mm.

[0020] Furthermore, the collection end of the first telescopic rod is equipped with a cotton swab.

[0021] Furthermore, the first telescopic rod and the second telescopic rod are made of PP.

[0022] Furthermore, the sample loading groove is U-shaped.

[0023] This utility model has the following beneficial effects:

[0024] 1. The sampling swab is a telescopic swab. The swab extends and retracts via a protrusion on the first telescopic rod and a groove on the second telescopic rod. The swab leaves the factory in an extended state for immediate use. After sampling, pressing the swab retracts it, allowing it to be directly placed into the sampling tube without breaking it. This solves the problems of sample splattering and contamination caused by broken swabs, as well as the need for repeated collection of broken swabs, thus improving work efficiency and reducing resource waste.

[0025] 2. A sealing cap is designed on the sampling swab, and a test tube cap is designed on the test tube body. The combination of the sealing cap and the test tube cap prevents the sample placed in the test tube from being contaminated. At the same time, the two also act as a barrier to prevent operators from contaminating the telescopic rod of the swab, or to prevent the cotton swab after sampling from coming into contact with the outer circumference of the test tube and causing contamination.

[0026] 3. A sample loading groove is designed on the outer periphery of the test tube body, which improves the safety and efficiency of sample elution while ensuring that the sample is fully eluted and simplifies the operation steps. Attached Figure Description

[0027] Figure 1 This is a view of a telescopic swab changing from its extended state (state 1) to its contracted state (state 2).

[0028] Figure 2 A structural diagram of the sampling tube to prevent contact.

[0029] Figure 3 This is a cross-sectional view of the telescopic swab in its extended state.

[0030] Figure 4 This is a cross-sectional view of the disassembled structure of the telescopic swab.

[0031] Figure 5 This is a structural diagram of the test tube body. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments described below are intended to facilitate the understanding of the present invention and do not constitute any limitation thereof.

[0033] Example 1: The contactless sampling tube provided by this utility model

[0034] like Figure 1-2 As shown, the contactless sampling tube provided by this utility model includes a telescopic swab 1 and a tube body 2. The telescopic swab 1 includes a first telescopic rod 11, a second telescopic rod 12, and a handheld component. The first telescopic rod 11 has a first telescopic end 111 and a collection end, and the second telescopic rod 12 has a second telescopic end 121 and a handheld end. The collection end of the first telescopic rod 11 is equipped with a cotton swab 112. The first telescopic rod 11 and the second telescopic rod 12 are connected and extend and retract through the first telescopic end 111 and the second telescopic end 121. The handheld end of the second telescopic rod 12 is welded to the handheld component. The first telescopic rod 11 and the second telescopic rod 12 are made of PP. The length of the first telescopic rod 11 is greater than that of the second telescopic rod 12, and the diameter of the second telescopic rod 12 is greater than that of the first telescopic rod 11.

[0035] like Figure 3 and 4As shown, the first telescopic end 111 of the first telescopic rod 11 has a protrusion 111-1, and the second telescopic end 121 of the second telescopic rod 12 has a groove 121-2. The protrusion height of the protrusion 111-1 is the same as the depth of the groove 121-2. Before use, the swab is in an extended state, and the first telescopic rod 11 and the second telescopic rod 12 are fixedly connected and extended by the engagement of the protrusion 111-1 and the groove 121-2. After sampling, when force is applied downward at the handheld part, the protrusion 111-1 slides out of the groove 121-2, the second telescopic rod 12 slides downward, and the first telescopic rod 11 slides upward. The first telescopic rod 11 and the second telescopic rod 12 form a sleeve structure, and the swab shrinks and shortens. After the swab shrinks, the sealing cap 14 fits against the test tube cap 21 at the upper end of the test tube body 2, completing the sample collection. Before use, the telescopic swab is similar to an existing cotton swab, which can be used immediately. After use, the swab can be retracted by applying external force without breaking it, which reduces the risk of swab contamination, improves work efficiency, and saves resources.

[0036] like Figure 5 As shown, the test tube body 2 has a test tube cap 21 at its upper end, the diameter of which is the same as the diameter of the sealing cap 14. A U-shaped sample loading groove 22, 30mm deep, is located on the bottom of one side of the outer circumference of the test tube body 2. A circular hole at the bottom of the test tube connects the inside of the test tube to the sample loading groove 22. After sampling, the operator adds elution reagent through the sample loading groove. The reagent flows into the test tube through the circular hole, and then the sample on the swab is eluted by shaking with the instrument. Since the added elution reagent is generally 1.5ml, the problem of insufficient elution is avoided. Furthermore, the sufficient depth of the sample loading groove also prevents the reagent from being shaken out during elution. The structural design of the test tube body 2 not only simplifies the experimental process but also ensures that the sample is not contaminated during elution.

[0037] The working principle of this utility model is as follows:

[0038] During sampling, the telescopic swab 1 and test tube body 2 are removed from their packaging bags. The operator holds the telescopic swab 1 by its handle 13 and takes the sample. After sampling, the telescopic swab 1 is placed into the test tube body 2, and the swab 1 is pressed downwards. The second telescopic rod 12 slides downwards, and the first telescopic rod 11 slides upwards. The second telescopic rod 12 fits around the first telescopic rod 12, forming a sleeve structure, and the swab shrinks and shortens. At the same time, the sealing cap 14 on the telescopic swab 1 fits snugly against the test tube cap 21 on the test tube body 2, ensuring that the inside of the test tube is not contaminated by external factors. Next, the operator adds elution reagent, usually 1.5 ml, through the sample addition slot 22. The reagent flows into the test tube through the round hole, and then the sample is eluted by shaking with a shaking instrument.

[0039] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A contactless sampling tube, characterized in that, The device includes a telescopic swab and a test tube body. The telescopic swab includes a first telescopic rod, a second telescopic rod, and a handheld component. The first telescopic rod includes a first telescopic end and a collection end. The second telescopic rod includes a second telescopic end and a handheld end. The first telescopic end of the first telescopic rod is provided with a protrusion, and the second telescopic end of the second telescopic rod is provided with a groove. The protrusion and the groove engage to connect the first telescopic rod and the second telescopic rod.

2. The contactless sampling tube as described in claim 1, characterized in that, The protrusion height of the bump is the same as the depth of the groove, and the handheld end of the second telescopic rod is connected to the handheld component by welding.

3. The contactless sampling tube as described in claim 2, characterized in that, The diameter of the second telescopic rod is larger than that of the first telescopic rod, and the length of the first telescopic rod is greater than that of the second telescopic rod.

4. The contactless sampling tube as described in claim 3, characterized in that, The handheld component includes a handheld part and a sealing cap, the diameter of which is larger than that of the handheld part.

5. The contactless sampling tube as described in claim 4, characterized in that, The test tube body is equipped with a test tube cap, and the diameter of the sealing cap is the same as the diameter of the test tube cap.

6. The contactless sampling tube as described in claim 5, characterized in that, The outer circular surface of the test tube body is provided with a sample loading groove, and the bottom of the test tube body is provided with a circular hole. The interior of the test tube body is connected to the sample loading groove through the circular hole.

7. The contactless sampling tube as described in claim 6, characterized in that, The depth of the sample loading groove is greater than 25 mm.

8. The contactless sampling tube as described in claim 7, characterized in that, The first telescopic rod has a cotton swab at its collection end.

9. The contactless sampling tube as described in claim 8, characterized in that, The first and second telescopic rods are made of PP.

10. The contactless sampling tube as described in claim 8, characterized in that, The sample loading groove is U-shaped.

Images