CN219657304U - Medical reagent sampling tube - Google Patents
Medical reagent sampling tube Download PDFInfo
- Publication number
- CN219657304U CN219657304U CN202320527358.4U CN202320527358U CN219657304U CN 219657304 U CN219657304 U CN 219657304U CN 202320527358 U CN202320527358 U CN 202320527358U CN 219657304 U CN219657304 U CN 219657304U
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- China
- Prior art keywords
- joint
- sampling tube
- pipe
- connector
- cap
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- 238000005070 sampling Methods 0.000 title claims abstract description 25
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims description 11
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 10
- 239000012085 test solution Substances 0.000 description 8
- 230000004323 axial length Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a medical reagent sampling tube which comprises a tube body and a tube cap, wherein a first connector is arranged on the tube body, a first connector which is in threaded fit with the first connector is arranged on the tube cap, an annular groove is arranged on the contact end face of any one of the first connector and the first connector, and an annular protrusion which is matched with the annular groove is arranged on the contact end face of the other one. The utility model provides a medical reagent sampling tube, which is characterized in that an annular groove and an annular bulge are additionally arranged on the contact surface of a first connector and a first connector to form a concave-convex structure, so that secondary sealing of a gap between the end part of a tube body and the end part of a tube cap is realized, and the sampling tube can adapt to a scene with large change of environmental air pressure.
Description
Technical Field
The utility model relates to the technical field of sampling tubes, in particular to a medical reagent sampling tube.
Background
The medical reagent sampling tube can be used for preprocessing and preserving a sample collected on site. It is especially suitable for the field of in vitro rapid detection, such as blood marker detection, drug detection, respiratory pathogen detection, etc. The method can place the collected sample into a sampling tube filled with a detection test solution, and a certain amount of detection test solution is usually preloaded in the tube for sample pretreatment or preservation.
Due to the limited shelf life of the detection test solution and the small volume and light weight of the sampling tube, the air-borne test tube is suitable for air transportation. During air transportation, the air pressure is lower than the standard air pressure. In the process of taking off and landing, the joint of the sampling tube body and the tube cap is easy to generate insufficient sealing, so that the detection test solution is leaked. In order to solve the sealing problem, an antigen detection leakage-proof reagent dropper disclosed in CN214622701U is mostly adopted, and sealing performance between the tube body and the tube cap is enhanced by additionally arranging a sealing ring between the tube body and the tube cap in the patent scheme. Because the pipe cap is hard plastic and has smaller volume, the assembly difficulty of the sealing ring made of elastic materials is higher, the sealing ring and the pipe cap are not connected in place and are easy to fall off, the production yield of the sampling pipe is affected, and the production cost of enterprises is increased.
Disclosure of Invention
The present utility model aims to solve one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a medical reagent sampling tube, which is characterized in that an annular groove and an annular bulge are additionally arranged on the contact surface of a first connector and a first connector to form a concave-convex structure, so that secondary sealing of a gap between the end part of a tube body and the end part of a tube cap is realized, and the sampling tube can adapt to a scene with large change of environmental air pressure.
The technical scheme adopted by the utility model is as follows: the utility model provides a medical reagent sampling tube, including body and cap, be equipped with first joint on the body, be equipped with on the cap with first joint screw-thread fit's first interface, first interface with be equipped with the ring channel on the contact terminal surface of either one of the first joint, be equipped with on the contact terminal surface of the other with the ring channel adaptation annular bulge.
After the structure is adopted, the concave-convex annular structure is additionally arranged on the contact surface of the first connector and the first joint, namely the annular groove and the annular bulge, and the annular groove is matched with the annular bulge to seal the gap between the end part of the pipe body and the end part of the pipe cap so as to form secondary sealing. The sampling tube can adapt to the scene that environmental air pressure changes greatly, and in the middle of the air transportation of sampling tube promptly, can guarantee its leakproofness, detect the difficult gap outflow between body and the cap of pipe of test solution.
According to one embodiment of the utility model, the pipe cap is provided with a second joint, and is connected with a sealing cover through threads of the second joint, and the sealing cover is provided with a plug rod for being inserted into an inner hole of the second joint; and the mixed solution obtained by mixing the sample and the detection test solution is dripped from the second joint.
According to one embodiment of the utility model, the inner hole of the first joint is divided into a first part, a second part and a third part from top to bottom in sequence, the inner holes of the first part and the third part are in clearance fit with the plug rod, the minimum clearance is larger than zero, and the inner hole of the second part is in interference fit with the plug rod; when the whole plug rod is in clearance fit with the inner hole of the first joint, the tightness between the first joint and the sealing cover cannot be ensured; when the whole plug rod is in interference fit with the inner hole of the first connector, the screw thread between the first connector and the sealing cover is not screwed in place, so that looseness is easy to generate; by adopting the arrangement, the tightness of the first joint and the sealing cover is ensured, and meanwhile, the threaded connection between the first joint and the sealing cover can be facilitated.
According to one embodiment of the utility model, a transition pipe is arranged between the first joint and the first joint, and the inner diameter of the transition pipe is smaller than that of the first joint and larger than that of the joint.
According to one embodiment of the utility model, the inner hole of the transition pipe extends towards the first interface to form an annular inner boss, and the inner boss is matched with the pipe opening of the pipe body; the arrangement of the inner boss is used for increasing the tightness between the pipe body and the pipe cap.
According to one embodiment of the utility model, the pipe body is provided with a shoulder, and the periphery of the shoulder is provided with anti-slip teeth.
According to one embodiment of the utility model, the inner wall of the opening of the pipe cap, which faces the pipe body, is provided with end face teeth; because the first joint part is provided with external threads, the first interface is provided with internal threads, and the arrangement of the end face teeth is easy for demolding of the pipe body after injection molding.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a front view of a sample tube according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a sample tube of a reagent according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a sample tube of a reagent in accordance with an embodiment of the present utility model;
FIG. 4 is a perspective view of a cut-away view of a cap in a sample tube according to an embodiment of the present utility model;
FIG. 5 is a cross-sectional view of an embodiment of the present utility model with the cap separated from the seal cap;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
FIG. 7 is a cross-sectional view of a cap in an embodiment of the utility model;
FIG. 8 is a cross-sectional view of a cap and seal cover in an embodiment of the utility model;
fig. 9 is a partial enlarged view at B in fig. 8.
The reference numerals in the figures illustrate:
1. a tube body; 2. a tube cap; 3. sealing cover;
11. a shoulder; 12. a first joint;
12a, annular groove;
21. a first interface; 22. a transition pipe; 23. a second joint; 24. an annular protrusion; 25. end face teeth;
a. a first portion; b. a second portion; c. a third section;
221. an inner boss;
31. a plug rod.
Description of the embodiments
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
As shown in fig. 1-9, in this embodiment, a medical reagent sampling tube is disclosed, including a tube body 1 and a tube cap 2, a first joint 12 is provided on the tube body 1, a first interface 21 in threaded engagement with the first joint 12 is provided on the tube cap 2, an annular groove 12a is provided on a contact end surface of any one of the first interface 21 and the first joint 12, and an annular protrusion 24 adapted to the annular groove 12a is provided on a contact end surface of the other one.
Further, as shown in fig. 4, in the present embodiment, the outer peripheral surface of the first joint 12 is provided with an external thread, and the inner peripheral surface of the first joint 21 is provided with an internal thread that is screw-fitted with the external thread. Wherein a ring of annular grooves 12a are provided on the upper end face of the first connector 12. Correspondingly, an annular protrusion 24 is arranged at the inner top surface of the first interface 21, and the annular protrusion 24 protrudes downwards from the inner top surface of the first interface 21. When the first adapter 12 is threadedly coupled to the first interface 21, the annular groove 12a on the first adapter 12 mates with the annular projection 24 on the first interface 21.
Further, in this embodiment, a cavity for storing the test solution is provided in the tube body 1. The pipe body 1 is integrally formed by injection molding, and the annular groove 12a is formed by injection molding following the pipe body 1.
Further, in the present embodiment, the cap 2 is integrally molded by injection molding, and the annular projection 24 is injection molded following the cap 2.
Specifically, as described with reference to fig. 2 and 3, the cap 2 is provided with a second joint 23, and is screwed with a sealing cover 3 through the second joint 23, and the sealing cover 3 is provided with a plug rod 31 for being inserted into an inner hole of the second joint 23; the mixed solution of the sample and the test solution is dropped from the second joint 23.
Specifically, as shown in fig. 7, 8 and 9, in this embodiment, the inner hole of the first joint 12 is divided into a first portion a, a second portion b and a third portion c from top to bottom, the inner holes of the first portion a and the third portion c are in clearance fit with the plug rod 31, the minimum clearance is greater than zero, and the inner hole of the second portion b is in interference fit with the plug rod 31.
Further, in the present embodiment, the stopper rod 31 is formed by extending the inner top surface of the sealing cover 3 downward in the axial direction, and the axial length of the stopper rod 31 is smaller than the axial length of the sealing cover 3 body. And the axial length of the stem 31 is less than the axial length of the bore of the second connector 23.
Specifically, as shown in fig. 5 and 6, a transition pipe 22 is disposed between the first joint 12 and the first joint 21, and the inner diameter of the transition pipe 22 is smaller than the inner diameter of the first joint 21 and larger than the inner diameter of the joint.
Further, in this embodiment, the pipe cap 2 has a three-stage stepped hole therein, and the inner diameter of the stepped hole increases gradually from top to bottom, which are the inner hole of the second joint 23, the inner hole of the transition pipe 22, and the inner hole of the first joint 21, respectively.
Specifically, as shown in fig. 6, the inner hole of the transition pipe 22 extends toward the first interface 21 to form an annular inner boss 221, and the inner boss 221 is adapted to the pipe orifice of the pipe body 1; the inner boss 221 is provided to increase the sealability between the pipe body 1 and the pipe cap 2.
Specifically, as shown in fig. 4, the pipe body 1 is provided with a shoulder 11, the periphery of the shoulder 11 is provided with anti-slip teeth, and the inner wall of the opening of the pipe cap 2 facing the pipe body 1 is provided with end face teeth 25.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (7)
1. The utility model provides a medical reagent sampling tube, including body (1) and cap (2), be equipped with first joint (12) on body (1), be equipped with on cap (2) with first joint (12) screw-thread fit's first interface (21), its characterized in that: an annular groove (12 a) is arranged on the contact end surface of any one of the first connector (21) and the first connector (12), and an annular protrusion (24) matched with the annular groove (12 a) is arranged on the contact end surface of the other connector.
2. The medical reagent sampling tube according to claim 1, wherein: the pipe cap (2) is provided with a second joint (23), the second joint (23) is connected with a sealing cover (3) through threads, and the sealing cover (3) is provided with a plug rod (31) which is used for being inserted into an inner hole of the second joint (23).
3. The medical reagent sampling tube according to claim 2, wherein: the inner hole of the first joint (12) is divided into a first part (a), a second part (b) and a third part (c) from top to bottom in sequence, the inner holes of the first part (a) and the third part (c) are in clearance fit with the plug rod (31) and the minimum clearance is larger than zero, and the inner hole of the second part (b) is in interference fit with the plug rod (31).
4. The medical reagent sampling tube according to claim 2, wherein: a transition pipe (22) is arranged between the first joint (12) and the first joint (21), and the inner diameter of the transition pipe (22) is smaller than that of the first joint (21) and larger than that of the joint.
5. The medical reagent sampling tube according to claim 4, wherein: an inner hole of the transition pipe (22) extends towards the first interface (21) to form an annular inner boss (221), and the inner boss (221) is matched with a pipe orifice of the pipe body (1).
6. The medical reagent sampling tube according to claim 1, wherein: the pipe body (1) is provided with a shoulder (11), and the periphery of the shoulder (11) is provided with anti-slip teeth.
7. The medical reagent sampling tube according to claim 1, wherein: the inner wall of the opening of the pipe cap (2) facing the pipe body (1) is provided with end face teeth (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320527358.4U CN219657304U (en) | 2023-03-14 | 2023-03-14 | Medical reagent sampling tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320527358.4U CN219657304U (en) | 2023-03-14 | 2023-03-14 | Medical reagent sampling tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219657304U true CN219657304U (en) | 2023-09-08 |
Family
ID=87856383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320527358.4U Active CN219657304U (en) | 2023-03-14 | 2023-03-14 | Medical reagent sampling tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219657304U (en) |
-
2023
- 2023-03-14 CN CN202320527358.4U patent/CN219657304U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |