Sampling tube assembly

Abstract

The sampling tube assembly comprises a tube body, a sampling assembly and a limiting pulling piece, a main cavity, a communicating cavity and a test paper cavity are formed in the tube body, an opening is formed in the upper portion of the tube body, the upper portion of the main cavity is communicated with the opening, and the lower portion of the main cavity and the lower portion of the test paper cavity are both communicated with the communicating cavity; a diaphragm is arranged between the main cavity and the communicating cavity and separates the main cavity from the communicating cavity; the outer wall of the pipe body is sunken inwards to form a matching area, the matching area penetrates through the upper end of the pipe body, the upper cover is arranged on the outer side of the matching area in a sleeving mode and can slide up and down relative to the matching area, so that the sampling assembly can be switched between a first station and a second station, the limiting pulling piece comprises a first pulling ring, and a vertical first cutting mark is arranged on the first pulling ring; the first pull ring sleeves the outer side of the matching area, the upper cover is located on the upper side of the first pull ring, and the lower end of the upper cover abuts against the first pull ring. The position of the upper cover can be limited, and the sampling assembly can be switched from the first station to the second station only after the limiting pulling piece is pulled apart.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a sampling tube component. Background Art

[0002] With the continuous outbreak and spread of infectious diseases around the world, rapid and accurate detection of pathogens has become a key step in preventing and controlling infectious diseases. However, traditional methods for detecting infectious markers have problems with sample contamination and transmission risks, mainly open lateral flow test cards, which are prone to sample cross-contamination during operation.

[0003] Chinese patent authorization announcement No. CN206523509U discloses an integrated device for stool sampling and occult blood detection, which limits the position of the lid by a limit block. When the lid needs to be pressed down, the limit block must be removed first, and the limit block is only assembled on the sealing tube. Therefore, after the lid is removed, the limit block is very easy to fall off. Therefore, after the stool sampling stick is inserted back into the tube cavity, the tip of the piston rod may pierce the sealing sheet, so that the feces are not fully dissolved in the solution, thereby affecting the accuracy of the test result. Utility Model Content

[0004] In view of this, the utility model provides a sampling tube assembly, which can effectively limit the position of the upper cover. Only after the limiting pulling piece is torn off, the sampling assembly can be switched from the first position to the second position.

[0005] The technical solution adopted by the utility model is:

[0006] A sampling tube assembly, used for detecting a target in a biological sample, comprises a tube body, a sampling assembly and a limit puller, wherein the tube body is provided with a main cavity, a connecting cavity and a test paper cavity, an upper portion of the tube body forms an opening, the upper portion of the main cavity is connected to the opening, the main cavity and the test paper cavity are arranged side by side, and the lower portion of the main cavity and the lower portion of the test paper cavity are both connected to the connecting cavity;

[0007] A diaphragm is provided between the main cavity and the communicating cavity, and the diaphragm separates the main cavity and the communicating cavity;

[0008] The sampling assembly includes an upper cover and a sampling rod, wherein the sampling rod is connected to the upper cover, a sampling head is provided at the lower part of the sampling rod, and the lower end of the sampling head is sharp, and the sampling rod extends from the opening into the main cavity.

[0009] The outer wall of the tube body is recessed inward to form a matching area, and the matching area passes through the upper end of the tube body. The upper cover is sleeved on the outer side of the matching area and can slide up and down relative to the matching area, so that the sampling assembly can switch between the first station and the second station;

[0010] In the first station, the sampling rod is located on the upper side of the diaphragm;

[0011] At the second station, the lower end of the sampling head punctures the diaphragm;

[0012] The limiting pulling member includes a first pull ring, which is provided with a vertical first cut mark. The first pull ring is sleeved on the outer side of the matching area, the upper cover is located on the upper side of the first pull ring, and the lower end of the upper cover is against the first pull ring.

[0013] Preferably, the outer wall of the tube body is recessed inward to form an annular limiting groove, and the limiting groove is located at the lower part of the tube body;

[0014] The limiting pulling member further comprises a second pull ring and a connecting strip, the second pull ring is provided with a vertical second cut mark, the first pull ring and the second pull ring are connected via the connecting strip, and the second pull ring is sleeved on the limiting groove.

[0015] Preferably, the side wall of the test paper cavity facing away from the main cavity is a first side wall, and the first side wall is a transparent side wall; the connecting strip covers the first side wall from the outside.

[0016] Preferably, a paddle is connected to the outer wall of the second pull ring, and the paddle avoids the second cut mark.

[0017] Preferably, in the circumferential direction of the first pull ring, the first cut is close to the connecting strip, and the first cut and the second cut are on the same straight line.

[0018] Preferably, the first pull ring is further provided with a first incision, the first incision is located at the lower side of the first pull ring, and in the circumferential direction of the first pull ring, the first incision and the first cut mark are located at the same position;

[0019] The second pull ring is also provided with a second incision, which is located at the lower side of the second pull ring, and in the circumferential direction of the second pull ring, the second incision and the second cut are located at the same position.

[0020] Preferably, the first incision and the second incision are collectively referred to as incisions, the first pull ring and the second pull ring are collectively referred to as pull rings, the incision includes an inner weakening groove and an outer weakening groove, the inner wall of the pull ring is recessed outward to form the inner weakening groove, the outer wall of the pull ring is recessed inward to form the outer weakening groove, and in the circumferential direction of the pull ring, the outer weakening groove at least partially overlaps with the inner weakening groove.

[0021] Preferably, in the vertical direction, the length of the first pull ring is consistent with the displacement difference between the first station and the second station.

[0022] Beneficial effects of the utility model:

[0023] The first pull ring is sleeved on the outside of the matching area, and the upper cover is located on the upper side of the first pull ring. Therefore, the first pull ring will not be separated from the matching area without human intervention. Due to the restriction of the first pull ring, the upper cover cannot move downward, so that the sampling component can only be in the first station. When the sampling component needs to be moved to the second station, due to the setting of the first cut on the first pull ring, the first pull ring can be torn off along the first cut, so that the first pull ring is separated from the matching area. In this way, the upper cover can move downward, so that the sampling component moves to the second station to puncture the diaphragm and achieve the purpose of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0025] Figure 1 is a schematic diagram of the structure of the sampling tube assembly;

[0026] Figure 2 It is an exploded view of the tube body and the limiting pull member;

[0027] Figure 3 is a cross-sectional view of a sampling tube assembly;

[0028] Figure 4 It is a cross-sectional view of the sampling tube assembly at the first station after the limit pull piece is torn off;

[0029] Figure 5 It is a cross-sectional view of the sampling tube assembly at the second station after the limit pull piece is torn off;

[0030] Figure 6 It is a schematic diagram of the structure of the sampling component;

[0031] Figure 7 It is a structural schematic diagram of a limit pull member;

[0032] Figure 8 It is a schematic diagram of the limiting pull member from another perspective.

[0033] In the figure: 1. tube body; 2. sampling assembly; 3. limit pull piece;

[0034] 11. Matching area; 12. Limiting groove; 13. Main cavity; 14. Connecting cavity; 15. Test strip; 18. Diaphragm;

[0035] 21. Upper cover; 22. Sampling rod; 23. Sampling head;

[0036] 31. first pull ring; 32. second pull ring; 33. connecting strip; 34. paddle; 35. inner weakening groove; 36. outer weakening groove;

[0037] 311, first incision; 312, first incision; 321, second incision. DETAILED DESCRIPTION

[0038] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail. In order to avoid confusing the essence of the present invention, known methods, processes, procedures, and components are not described in detail.

[0039] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0040] Unless the context clearly requires otherwise, throughout the specification and claims, the words "include", "comprising" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to".

[0041] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0042] See also Figure 1-Figure 8 The utility model provides a sampling tube assembly for detecting a target in a biological sample, wherein the biological sample is, for example, feces, respiratory skin tissue or body fluid, and the sampling tube assembly comprises a tube body 1, a sampling assembly 2 and a limit pull member 3, wherein the tube body 1 is provided with a main cavity 13, a connecting cavity 14 and a test paper cavity, wherein an opening is formed at the upper portion of the tube body 1, and the upper portion of the main cavity 13 is connected to the opening, and the main cavity 13 and the test paper cavity are arranged side by side on the left and right, and the lower portion of the main cavity 13 and the lower portion of the test paper cavity are both connected to the connecting cavity 14.

[0043] A diaphragm 18 is disposed between the main cavity 13 and the communicating cavity 14 , and the diaphragm 18 separates the main cavity 13 from the communicating cavity 14 .

[0044] The sampling assembly 2 includes an upper cover 21 and a sampling rod 22. The sampling rod 22 is connected to the upper cover 21. A sampling head 23 is provided at the lower part of the sampling rod 22. The lower end of the sampling head 23 is sharp. The sampling rod 22 extends from the opening into the main cavity 13.

[0045] The outer wall of the tube body 1 is recessed inward to form a matching area 11, and the matching area 11 passes through the upper end of the tube body 1. The upper cover 21 is sleeved on the outside of the matching area 11 and can slide up and down relative to the matching area 11, so that the sampling component 2 can switch between the first station and the second station.

[0046] In the first station, the sampling rod 22 is located on the upper side of the diaphragm 18 .

[0047] At the second station, the lower end of the sampling head 23 punctures the diaphragm 18 .

[0048] The limiting pulling member 3 includes a first pull ring 31 , on which a first vertical cut 311 is provided. The first pull ring 31 is sleeved on the outer side of the matching area 11 , and the upper cover 21 is located on the upper side of the first pull ring 31 , and the lower end of the upper cover 21 abuts against the first pull ring 31 .

[0049] Initially, the sampling rod 22 (sampling component 2) is in the first position relative to the tube body 1, and the main cavity 13 is pre-stored with a solvent, and the solvent is located on the upper side of the diaphragm 18. Due to the obstruction of the diaphragm 18, the solvent cannot flow into the connecting cavity 14. At this time, the sampling head 23 is basically immersed in the solvent of the main cavity 13, and then the sampling component 2 is pulled out, and the biological sample is collected through the sampling component 2. After the collection is completed, the sampling component 2 is re-inserted into the main cavity 13 from the open end. At this time, the sampling head 23 will be immersed in the solvent again (reaching the first position), and the biological sample attached to the sampling head 23 will be dissolved in After being completely absorbed into the solvent, the first pull ring 31 is torn off along the first cut 311 to expose the matching area 11, so that the upper cover 21 can move downward and continue to press down the sampling assembly 2. Since the lower end of the sampling head 23 is sharp, the sampling head 23 will pierce the diaphragm 18, so that the main cavity 13 and the connecting cavity 14 are connected, and the solvent will flow from the main cavity 13 into the connecting cavity 14. A test strip 15 is pre-inserted in the test paper cavity, and the lower end of the test strip 15 extends into the connecting cavity 14, so that the solvent contacts the lower end of the test strip 15, thereby causing the test strip 15 to change and display the test result.

[0050] The first pull ring 31 is sleeved on the outside of the matching area 11, and the upper cover 21 is located on the upper side of the first pull ring 31. Therefore, in the absence of human intervention, the first pull ring 31 will not be separated from the matching area 11. Due to the restriction of the first pull ring 31, the upper cover 21 cannot move downward, so that the sampling component 2 can only be in the first position. When the sampling component 2 needs to be moved to the second position, due to the setting of the first cut 311 on the first pull ring 31, the first pull ring 31 can be torn off along the first cut 311, so that the first pull ring 31 is separated from the matching area 11, so that the upper cover 21 can move downward, so that the sampling component 2 moves to the second position to puncture the diaphragm 18 and achieve the purpose of detection.

[0051] The outer wall of the tube body 1 is recessed inward to form an annular limiting groove 12, and the limiting groove 12 is located at the lower part of the tube body 1;

[0052] The limiting pulling member 3 further includes a second pull ring 32 and a connecting strip 33 . The second pull ring 32 is provided with a vertical second cut 321 . The first pull ring 31 and the second pull ring 32 are connected via the connecting strip 33 . The second pull ring 32 is sleeved on the limiting groove 12 .

[0053] The side wall of the test paper cavity facing away from the main cavity 13 is a first side wall, and the first side wall is a transparent side wall; the connecting strip 33 covers the first side wall from the outside.

[0054] The first side wall is a transparent side wall, so the test result on the test strip 15 can be displayed through the first side wall. When the second pull ring 32 is sleeved on the limiting groove 12, the connecting strip 33 just covers the first side wall, thereby protecting the first side wall from the outside.

[0055] When tearing off the position-limiting pulling member 3 , the second pull ring 32 can be firstly torn off along the second cut mark 321 , and then the connecting strip 33 can be pulled upwards to tear off the first pull ring 31 along the first cut mark 311 .

[0056] A paddle 34 is also connected to the outer wall of the second pull ring 32, and the paddle 34 avoids the second cut mark 321. The paddle 34 protrudes from the second pull ring 32, so the second pull ring 32 can be torn off by pulling the paddle 34.

[0057] In the circumferential direction of the first pull ring 31 , the first cut mark 311 is close to the connecting strip 33 , and the first cut mark 311 and the second cut mark 321 are on the same straight line.

[0058] Since the first cut 311 is close to the connecting strip 33 , when the connecting strip 33 is pulled upward, the first pull ring 31 can be easily torn off along the first cut 311 .

[0059] The first pull ring 31 is further provided with a first cutout 312 . The first cutout 312 is located at the lower side of the first pull ring 31 , and in the circumferential direction of the first pull ring 31 , the first cutout 312 and the first cut mark 311 are located at the same position.

[0060] The second pull ring 32 is further provided with a second incision, which is located at the lower side of the second pull ring 32 , and in the circumferential direction of the second pull ring 32 , the second incision and the second cut mark 321 are located at the same position.

[0061] The first cutout 312 and the second cutout are provided to facilitate the operator to tear off the first pull ring 31 and the second pull ring 32. Taking the first cutout 312 as an example, when tearing off the first pull ring 31, the operator pulls the connecting strip 33 upward, and the connecting strip 33 pulls the first cutout 312 to enlarge the first cutout 312. The first cutout 312 corresponds to the first cut mark 311, so that the first cutout 312 can be easily enlarged, thereby tearing off the first pull ring 31.

[0062] The first cut mark 311 and the second cut mark 321 are collectively referred to as cut marks, the first pull ring 31 and the second pull ring 32 are collectively referred to as pull rings, the cut marks include an inner weakening groove 35 and an outer weakening groove 36, the inner wall of the pull ring is recessed outward to form the inner weakening groove 35, the outer wall of the pull ring is recessed inward to form the outer weakening groove 36, and in the circumferential direction of the pull ring, the outer weakening groove 36 at least partially overlaps with the inner weakening groove 35.

[0063] The provision of the inner weakening groove 35 and the outer weakening groove 36 makes the pull ring partially thinner, thereby facilitating tearing the pull ring along the thinned position.

[0064] In the vertical direction, the length of the first pull ring 31 is consistent with the displacement difference between the first station and the second station.

[0065] After the first pull ring 31 is torn off, the lower side of the upper cover 21 is no longer hindered by the first pull ring 31, so the upper cover 21 can slide downward by a distance corresponding to the length of the first pull ring 31, and this length is consistent with the displacement difference between the first station and the second station, so that when the upper cover 21 moves downward by this length, the sampling assembly 2 just reaches the second station.

[0066] It should be understood that the above-mentioned embodiments are merely illustrative and not restrictive. Without departing from the basic principles of the present invention, various obvious or equivalent modifications or substitutions that can be made by technicians in this field to the above details will be included in the scope of the claims of the present invention.

Claims

1. A sampling tube assembly for detecting a target in a biological sample. It is characterized in that It comprises a tube body, a sampling assembly and a limit puller, wherein the tube body is provided with a main cavity, a connecting cavity and a test paper cavity, the upper part of the tube body forms an opening, the upper part of the main cavity is connected with the opening, the main cavity and the test paper cavity are arranged side by side, and the lower part of the main cavity and the lower part of the test paper cavity are both connected with the connecting cavity; A diaphragm is provided between the main cavity and the communicating cavity, and the diaphragm separates the main cavity and the communicating cavity; The sampling assembly includes an upper cover and a sampling rod, wherein the sampling rod is connected to the upper cover, a sampling head is provided at the lower part of the sampling rod, and the lower end of the sampling head is sharp, and the sampling rod extends from the opening into the main cavity. The outer wall of the tube body is recessed inward to form a matching area, and the matching area passes through the upper end of the tube body. The upper cover is sleeved on the outer side of the matching area and can slide up and down relative to the matching area, so that the sampling assembly can switch between the first station and the second station; In the first station, the sampling rod is located on the upper side of the diaphragm; At the second station, the lower end of the sampling head punctures the diaphragm; The limiting pulling member includes a first pull ring, which is provided with a vertical first cut mark. The first pull ring is sleeved on the outer side of the matching area, the upper cover is located on the upper side of the first pull ring, and the lower end of the upper cover is against the first pull ring.

2. The sampling tube assembly according to claim 1, It is characterized in that The outer wall of the tube body is recessed inward to form an annular limiting groove, and the limiting groove is located at the lower part of the tube body; The limiting pulling member further comprises a second pull ring and a connecting strip, the second pull ring is provided with a vertical second cut mark, the first pull ring and the second pull ring are connected via the connecting strip, and the second pull ring is sleeved on the limiting groove.

3. The sampling tube assembly according to claim 2, It is characterized in that The side wall of the test paper cavity facing away from the main cavity is a first side wall, and the first side wall is a transparent side wall; the connecting strip covers the first side wall from the outside.

4. The sampling tube assembly according to claim 2, It is characterized in that A paddle is also connected to the outer wall of the second pull ring, and the paddle avoids the second cut mark.

5. The sampling tube assembly according to claim 4, It is characterized in that In the circumferential direction of the first pull ring, the first cut is close to the connecting strip, and the first cut and the second cut are on the same straight line.

6. The sampling tube assembly according to claim 5, It is characterized in that The first pull ring is further provided with a first incision, the first incision is located at the lower side of the first pull ring, and in the circumferential direction of the first pull ring, the first incision and the first cut mark are located at the same position; The second pull ring is also provided with a second incision, which is located at the lower side of the second pull ring, and in the circumferential direction of the second pull ring, the second incision and the second cut are located at the same position.

7. The sampling tube assembly according to claim 5, It is characterized in that The first cut mark and the second cut mark are collectively referred to as cut marks, the first pull ring and the second pull ring are collectively referred to as pull rings, the cut mark includes an inner weakening groove and an outer weakening groove, the inner wall of the pull ring is recessed outward to form the inner weakening groove, the outer wall of the pull ring is recessed inward to form the outer weakening groove, and in the circumferential direction of the pull ring, the outer weakening groove at least partially overlaps with the inner weakening groove.

8. The sampling tube assembly according to claim 1, It is characterized in that In the vertical direction, the length of the first pull ring is consistent with the displacement difference between the first station and the second station.

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