A viral sampling device

Abstract

The utility model relates to medical instrument technical field especially a virus sampling device. The utility model discloses the support assembly of being placed on the desktop, the sampling test tube of vertical insertion in the support assembly and the sealing assembly of being located in the sampling test tube top, the sealing assembly includes the sealing cover of being fixed in the inside of sampling test tube top, the leak protection cover of horizontal sliding of being located in the top of sealing cover and the sealing ring of being located between sealing cover and leak protection cover, the sealing cover is along its thickness direction and is opened with first passageway, leak protection cover is along its thickness direction and is opened with second passageway, when leak protection cover and sealing cover axis coincide, first passageway and second passageway are communicated to form a complete and can pass through the passageway of swab. The device solves the problem of virus nucleic acid preservative unstable sealing effect in traditional sampling device.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a virus sampling device. Background Technology

[0002] In virus testing sampling, the preservation and transportation of samples after collection are crucial for ensuring testing accuracy. In traditional virus testing sampling, after collecting samples with a swab, staff must place the swab into a sampling tube pre-filled with viral nucleic acid preservation solution. However, this process is highly susceptible to spillage if not handled carefully, a problem particularly prominent in solo sampling scenarios. Once the viral nucleic acid preservation solution spills, not only does it necessitate replacing the sampling tube, resulting in material waste, but it also severely delays overall sampling efficiency and hinders the progress of the testing work.

[0003] To avoid the aforementioned problem of preservation solution spillage, some existing virus sampling devices use a sealing plug inside the top of the sampling tube to achieve a seal. However, this sealing method has significant drawbacks in actual operation: Firstly, before inserting the swab into the sampling tube, the sealing plug tightly inserted into the sampling tube must be pulled out. During this process, due to the interaction of forces, the sampling bottle is very likely to move downwards, causing the internal viral nucleic acid preservation solution to spill out. Secondly, when the sealing plug is put back into the sampling bottle, the staff cannot accurately judge the degree of seal, and the sealing plug may not be properly inserted, resulting in an incomplete seal. Subsequently, during the movement of the sampling bottle, the problem of internal viral nucleic acid preservation solution spillage will still occur, failing to fundamentally solve the risk of preservation solution leakage. Utility Model Content

[0004] To address the aforementioned problems, the present invention aims to provide a virus sampling device that solves the issue of unstable sealing of viral nucleic acid preservation solution in traditional sampling devices.

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

[0006] A virus sampling device includes a support assembly placed on a table, a sampling tube vertically inserted into the support assembly, and a sealing assembly at the top of the sampling tube. The sealing assembly includes a sealing cap fixed inside the top of the sampling tube, a leak-proof cap horizontally slidable on top of the sealing cap, and a sealing ring between the sealing cap and the leak-proof cap. The sealing cap has a first channel extending through it along its thickness direction, and the leak-proof cap has a second channel extending through it along its thickness direction. When the leak-proof cap and the sealing cap are aligned, the first channel and the second channel are connected to form a complete through channel through which a swab can pass.

[0007] More preferably, a sliding sub-assembly is provided between the sealing cap and the leak-proof cap, and the leak-proof cap is slidably connected to the sealing cap through the sliding sub-assembly; the sliding sub-assembly includes a slide rail embedded radially in the top of the sealing cap body, a slider fixed to the bottom of the leak-proof cap and slidingly engaged with the slide rail, and an elastic element provided on one side of the slide rail and fixed at both ends to the slide rail and the slider respectively.

[0008] More preferably, the leak-proof cover is also movably provided with a pin along its thickness direction, and the top of the sealing cover is provided with a first pin hole and a second pin hole spaced apart on one side of the slide rail. When the leak-proof cover and the sealing cover are axially aligned, the pin is engaged with the first pin hole. When the leak-proof cover slides to the end away from the elastic element, the pin is engaged with the second pin hole.

[0009] More preferably, the support assembly includes a fixing ring movably sleeved on the outside of the sampling tube, a support base placed on a table, a rubber ring fixed to the upper surface of the support base and abutting against the sampling tube, and a number of support columns spaced apart between the fixing ring and the support base and evenly distributed.

[0010] This utility model has the following beneficial effects:

[0011] 1. This device achieves a double seal at the top of the sampling tube through the cooperation of the sealing cap, leak-proof cap, and sealing ring in the sealing assembly. The sealing ring fills the gap between the sealing cap and the leak-proof cap, preventing the preservation liquid from leaking from the connection point. At the same time, the opening and closing of the first and second channels can be controlled by sliding the leak-proof cap, eliminating the need to insert or remove the sealing plug and fundamentally solving the problem that the sampling tube may move or the seal may not be secure when the sealing plug is inserted or removed.

[0012] 2. The sliding sub-assembly in this device makes the sliding operation of the leak-proof cover smoother. The elastic element can automatically drive the leak-proof cover to reset after sampling, realizing the channel closure. In addition, the pin and the first pin hole and the second pin hole can fix the position of the leak-proof cover in the open or closed state of the channel, avoiding the leak-proof cover from sliding accidentally during sampling and improving the stability of operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front structure of the virus sampling device;

[0014] Figure 2 A top-down view of the virus sampling device;

[0015] Figure 3 This is a schematic diagram of the cross-section at point AA;

[0016] Figure 4 This is an enlarged view of point C;

[0017] Figure 5 This is a schematic diagram of the cross-section at point BB;

[0018] Figure 6 This is an enlarged view of point D;

[0019] Figure 7 This is a schematic diagram showing the movement and engagement of the sealing cap and the leak-proof cap.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Support assembly; 11. Fixing ring; 12. Support base; 13. Rubber ring; 14. Support column; 2. Sampling tube; 3. Sealing assembly; 31. Sealing cap; 311. First channel; 312. First pin hole; 313. Second pin hole; 32. Leak-proof cap; 321. Second channel; 322. Pin; 33. Sealing ring; 34. Sliding sub-assembly; 341. Slide rail; 342. Slider; 343. Elastic element. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] A virus sampling device includes a support assembly 1, a sampling tube 2, and a sealing assembly 3.

[0024] The support assembly 1, placed on a tabletop, includes a fixing ring 11, a support base 12, a rubber ring 13, and support columns 14. The fixing ring 11 is movably fitted onto the outside of the sampling tube 2 to limit the radial sway of the sampling tube 2; the support base 12 ensures the stability of the overall support; the rubber ring 13 is fixed to the upper surface of the support base 12, and its inner diameter matches the outer diameter of the sampling tube 2. When the sampling tube 2 is inserted into the support assembly 1, the rubber ring 13 tightly abuts against the bottom outer wall of the sampling tube 2, providing cushioning and anti-slip effects; multiple support columns 14 are provided, with their ends fixed to the lower surface of the fixing ring 11 and the upper surface of the support base 12, respectively, and the multiple support columns 14 are evenly distributed along the circumference of the fixing ring 11 to ensure the connection stability between the fixing ring 11 and the support base 12.

[0025] The sampling tube 2 is pre-filled with viral nucleic acid preservation solution, and the inner wall of the top opening of the tube is provided with an annular groove for fixing the sealing cap 31 in the sealing assembly 3.

[0026] The sealing assembly 3 includes a sealing cap 31, a leak-proof cap 32, a sealing ring 33, and a sliding sub-assembly 34. The sealing cap 31 is made of silicone, and its outer wall has a protrusion that matches the annular groove at the top of the sampling tube 2. The sealing cap 31 is fixed inside the top of the sampling tube 2 by the snap-fit ​​between the protrusion and the groove. A circular first channel 311 is opened in the middle of the sealing cap 31 along the thickness direction for the swab to pass through. A second channel 321 with the same diameter as the first channel 311 is opened in the middle of the leak-proof cap 32 along the thickness direction. The sealing ring 33 is fixed on the upper surface of the sealing cap 31 and is located outside the first channel 311. When the leak-proof cap 32 is closed on the top of the sealing cap 31, the sealing ring 33 can fill the gap between the two to achieve a seal.

[0027] The sliding sub-assembly 34 includes a slide rail 341, a slider 342, and an elastic element 3343. The slide rail 341 has a T-slot structure and is radially embedded in the upper surface of the sealing cover 31. The slider 342 is a T-shaped block adapted to the slide rail 341 and is fixed to the lower surface of the leak-proof cover 32. The slider 342 can slide freely along the slide rail 341, thereby driving the leak-proof cover 32 to move horizontally relative to the sealing cover 31. The elastic element 3343 is a spring, one end of which is fixed to the inner wall of the slide rail 341 near the edge of the sealing cover 31, and the other end is fixed to the side of the slider 342 near the edge of the slide rail 341. When the slider 342 slides towards the middle of the slide rail 341, the spring is compressed. After the slider 342 is released, the spring force can drive the slider 342 to return to its original position.

[0028] In addition, a circular through hole is provided along the thickness direction of the leak-proof cover 32, and the pin 322 is movably inserted into the through hole. The top of the pin 322 is provided with a circular pull ring for easy lifting operation by the staff. The upper surface of the sealing cover 31 is located on one side of the slide rail 341, and a first pin hole 312 and a second pin hole 313 are provided at intervals. The diameter of the two pin holes matches the outer diameter of the pin 322. When the leak-proof cover 32 and the sealing cover 31 are aligned, the first channel 311 and the second channel 321 are connected. At this time, the pin 322 can be inserted into the first pin hole 312 to fix the leak-proof cover 32. When the staff pushes the leak-proof cover 32, causing the slider 342 to slide along the slide rail 341 to the end away from the elastic element 3343, the second channel 321 is completely misaligned with the first channel 311. At this time, the pin 322 can be inserted into the second pin hole 313 to fix the position of the leak-proof cover 32 and achieve the sealing of the sampling tube 2.

[0029] The specific operating steps for using this device are as follows:

[0030] In the initial state, the leak-proof cover 32 and the sealing cover 31 are aligned on the axis, the first channel 311 and the second channel 321 are connected, and the pin 322 is inserted into the first pin hole 312 to fix the position of the leak-proof cover 32.

[0031] After collecting the sample with a swab, the staff will pass the swab through the second channel 321 and the first channel 311 in sequence and insert it into the sampling tube 2 to complete the sample placement operation.

[0032] After the sample is placed in, the staff pulls the pin 322 upward to disengage it from the first pin hole 312, and then pushes the leak-proof cover 32, which causes the slider 342 to slide along the slide rail 341. At this time, the elastic element 3343 is compressed.

[0033] When the leak-proof cover 32 slides to the point where the second channel 321 is completely misaligned with the first channel 311, the bolt 322 is loosened and inserted into the second pin hole 313 to fix the position of the leak-proof cover 32 and achieve the sealing of the sampling tube 2.

[0034] If the channel needs to be reopened during subsequent transfers, simply repeat steps 3-4 and push the leak-proof cover 32 back to its original position.

[0035] The above steps can effectively prevent the viral nucleic acid preservation solution from spilling, while simplifying the sealing process and improving sampling efficiency and sealing stability.

[0036] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A virus sampling device, characterized in that: It includes a support assembly (1) placed on a table, a sampling tube (2) inserted vertically into the support assembly (1), and a sealing assembly (3) located at the top of the sampling tube (2). The sealing assembly (3) includes a sealing cap (31) fixed inside the top of the sampling tube (2), a leak-proof cap (32) horizontally slidably disposed on the top of the sealing cap (31), and a sealing ring (33) disposed between the sealing cap (31) and the leak-proof cap (32). The sealing cap (31) has a first channel (311) through it along its thickness direction, and the leak-proof cap (32) has a second channel (321) through it along its thickness direction. When the leak-proof cap (32) and the sealing cap (31) coincide in axis, the first channel (311) and the second channel (321) are connected to form a complete through channel through which the swab can pass.

2. The virus sampling device according to claim 1, characterized in that: A sliding sub-assembly (34) is provided between the sealing cover (31) and the leak-proof cover (32). The leak-proof cover (32) is slidably connected to the sealing cover (31) through the sliding sub-assembly (34). The sliding sub-assembly (34) includes a slide rail (341) embedded radially in the top of the sealing cover (31), a slider (342) fixed at the bottom of the leak-proof cover (32) and slidingly engaged with the slide rail (341), and an elastic element (343) provided on one side inside the slide rail (341) and fixed at both ends to the slide rail (341) and the slider (342) respectively.

3. The virus sampling device according to claim 2, characterized in that: The leak-proof cover (32) is also provided with a pin (322) moving along its thickness direction. The top of the sealing cover (31) is provided with a first pin hole (312) and a second pin hole (313) spaced apart on one side of the slide rail (341). When the leak-proof cover (32) and the sealing cover (31) are axially aligned, the pin (322) is engaged with the first pin hole (312). When the leak-proof cover (32) slides to the end away from the elastic element (343), the pin (322) is engaged with the second pin hole (313).

4. The virus sampling device according to claim 1, characterized in that: The support assembly (1) includes a fixing ring (11) movably sleeved on the outside of the sampling tube (2), a support base (12) placed on the table, a rubber ring (13) fixed on the upper surface of the support base (12) and abutting against the sampling tube (2), and a number of support columns (14) spaced between the fixing ring (11) and the support base (12) and evenly distributed.

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