CN218077991U - Test tube for nucleic acid sampling - Google Patents

Abstract

The utility model provides a test tube for nucleic acid sampling, relating to the field of medical instruments for sampling nucleic acid of new coronavirus, comprising a tube cover and a tube body, wherein the tube cover is spirally connected on the tube body and is provided with a separation sheet; the top end of the pipe body is respectively provided with a first blade and an arc-shaped groove, the first blade is positioned on the inner side of the top end of the pipe body, and the first blade is connected with the arc-shaped groove at intervals; the separating sheet is respectively matched with the first blade and the arc-shaped groove, so that the head of the sampler is separated. The utility model has the advantages that the separating blade is matched with the first blade, so that the sampler is separated efficiently; the fixing effect of the sampler is improved through the arc-shaped groove, the sliding of the sampler is avoided, and the separation efficiency is effectively improved; the round platform-shaped jacking and the sealing ring are matched, so that the sealing performance of the sampling test tube is enhanced, the sealing ring is prevented from falling off, the sealing performance and the safety of the whole effect are improved, the service life is prolonged, and the occurrence of cross infection is reduced.

Description

Test tube for nucleic acid sampling

Technical Field

The utility model relates to a nucleic acid sampling medical instrument field specifically relates to test tube for nucleic acid sampling. In particular to a novel test tube for nucleic acid sampling.

Background

At present, the most common nasopharyngeal swab in the market is to weaken the middle front end of the sampler (so-called swab) for easy breaking. In the actual sampling operation process, we find that, in the breaking action process of the sampler, the sample preserving fluid and even the cotton swab head may splash out from the gap between the test tube body and the edge of the test tube cover due to shaking of the hand or vibration generated in the breaking moment, so as to increase the risk of cross infection. Meanwhile, the fact that the head and the tail of the sampler are separated only by means of physical breaking is discovered, occasionally, the cotton swab is not completely broken and is pulled out of the test tube again due to scurrying or carelessness, and even directly falls off, so that sampling fails and secondary sampling occurs, certain medical material waste is caused, the risk of cross infection is increased, and the satisfaction degree of sampling work is reduced. In addition, we also find that although a sealing gasket is also arranged in the test tube cover of many existing manufacturers, the inner top support of the cover is designed to be a cylinder with the same thickness, so that the gasket can fall off frequently in actual operation, and the cross infection probability is increased.

The patent literature search of the prior art finds that the Chinese utility model has the patent publication number of CN214422628U, discloses a new coronavirus nucleic acid detection sampling test tube, and belongs to the technical field of medical treatment. Comprises a tube body with an opening at the upper end; the utility model discloses a sampling cotton swab, including body, pipe cap, rectangular channel, annular through hole and the diameter of this annular through hole are greater than the width of rectangular channel and form a cotton swab stick rupture structure, the upper end cover of body is equipped with the pipe cap the middle part of pipe cap is seted up one and can is held the annular through hole of a sampling cotton swab head and one and can be held the rectangle passageway of a sampling cotton swab stick business turn over, wherein, the annular through hole with the rectangle passageway is linked together and this annular through hole's diameter is greater than the width of rectangle passageway and form a cotton swab stick rupture structure, the pipe cap be connected with the tube cap through a tube cap connecting elements and this tube cap can with thread sealing connection can be dismantled to the upper end of pipe cap. The utility model has the advantages of simple structure, the difficult roll-off test tube of being convenient for rupture sampling cotton swab, pharynx swab sample and tube cap open with lock easily operation, can effectively improve sampling efficiency, reduce the gathering time of sampling, reduce the risk of infecting. Therefore, the method disclosed by the document and the invention belongs to different inventive concepts.

SUMMERY OF THE UTILITY MODEL

To the defects in the prior art, the utility model aims at providing a test tube for nucleic acid sampling.

According to the utility model provides a test tube for nucleic acid sampling, which comprises a tube cover and a tube body, wherein the tube cover is spirally connected on the tube body, and a separation sheet is arranged on the tube cover;

the top end of the pipe body is respectively provided with a first blade and an arc-shaped groove, the first blade is positioned on the inner side of the top end of the pipe body, and the first blade is connected with the arc-shaped groove at intervals;

the separating sheet is respectively matched with the first blade and the arc-shaped groove, so that the head of the sampler is separated.

In some embodiments, the tube cap comprises an upper cover plate, a connecting cover plate and a top support, wherein the top end of the connecting cover plate is connected to the upper cover plate, and the connecting cover plate is connected with the tube body in a matching manner;

the inner wall of the upper cover plate is connected with a jacking, the upper end of the jacking is provided with an annular groove, and the annular groove is sleeved with a sealing ring matched with the annular groove.

In some embodiments, the separating sheet comprises a third blade attached to the inside of the end of the connecting cover plate or/and a second blade attached to the bottom of the top holder.

In some embodiments, the lower edge of the second blade protrudes above the plane of the lower edge of the connecting cover plate.

In some embodiments, the second blade is in the shape of a lotus petal, and the longitudinal section and the transverse section of the second blade are both arc-shaped.

In some embodiments, the first blade and the curved recess are in the shape of an inverted wedge.

In some embodiments, the top support is in a circular truncated cone shape, and the outer diameter of the upper end of the top support is smaller than that of the lower end of the top support.

In some embodiments, the third blade is an annular toothed blade.

In some embodiments, the tube cover is a hollow cylinder with a downward opening, and the tube body is a hollow cylinder with an upward opening.

In some embodiments, the inner wall of the connecting cover plate is provided with first threads, the outer wall of the upper end of the pipe body is provided with second threads, and the pipe cover is rotatably connected to the pipe body through the matching of the first threads and the second threads.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) The utility model discloses a separation piece and first blade mutually support, separate the head and the stalk portion of sample thief more efficiently, effectively reduce the invalid vibrations that traditional physics rupture separation method brought, shorten the time difference that the sample thief was separated vibrations in the twinkling of an eye and test tube totally enclosed simultaneously greatly, the shortening of time difference can effectively avoid the sample thief to separate the vibrations that produces in the twinkling of an eye and lead to the probability that the interior preservative fluid of test tube is excessive and the sample thief head splashes outside the test tube;

(2) The utility model effectively fixes the sampler through the use of the arc-shaped groove, reduces the incidence rate of adverse events that the cotton swab is not completely broken and is pulled out of the test tube again or even directly falls due to hurry or negligence through the interval design with the first blade, reduces the secondary sampling rate, reduces the waste of medical supplies, and ensures the higher satisfaction degree of the sampling work to the greatest extent;

(3) The utility model discloses an annular groove and sealing washer's use strengthens the leakproofness of sampling test tube, and the top of cooperation round platform form holds in the palm, effectively avoids droing of sealing washer to improve leakproofness, the security of whole effect, increase of service life, thereby reduce cross infection and take place.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is an overall schematic view of the present invention;

fig. 2 is a perspective view of the present invention;

FIG. 3 is a schematic longitudinal section of the present invention;

fig. 4 is a schematic diagram of the sampler of the present invention.

Reference numbers in the figures:

tube cap 1, upper cover plate 11, connection cover plate 12, first screw thread 121, third blade 13, top support 14, annular groove 15, sealing washer 16, second blade 17, body 2, second screw thread 20, first blade 21, a plurality of arc recess 22, sample thief 3.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. All of which belong to the protection scope of the present invention.

Example 1

The utility model provides a pair of test tube is used in nucleic acid sampling, as shown in fig. 1-4, including tube cap 1 and body 2, tube cap 1 is the hollow cylinder that the opening is decurrent, and body 2 is the hollow cylinder that the opening is ascending, and tube cap 1 screwed connection is on body 2. The tube cover 1 is provided with a separating sheet.

As shown in fig. 2-3, the top end of the pipe body 2 is respectively provided with a plurality of first blades 21 and a plurality of arc-shaped grooves 22, the first blades 21 are located at the inner side of the top end of the pipe body 2, and the first blades 21 are connected with the arc-shaped grooves 22 at intervals. First blade 21 is the fall-in wedge with arc recess 22, does benefit to the preservative solution simultaneously and flows into to the test tube along the wedge inner wall, reduces the liquid probability of outflowing. A plurality of arc recess 22 do benefit to when twisting the test tube lid and carry out the cutting action to the sample thief, play the effect of fixed sample thief, increase cutting efficiency.

The working principle is as follows:after the nasopharyngeal secretion and the mucous membrane sample of the tested object are collected, the test tube is opened to separate the tube cover 1 from the tube body 2, the head of the sampler 3 with the sample is inserted into the tube body 2,the tube cover 1 is covered on the tube body 2, the upper end of the tube cover 1 is pressed, under the action of pressure, the first blade 21 is matched with the separating sheet and acts on the handle part of the sampler 3, the head part of the sampler 3 is cut, and the sampler slides downwards into the tube body 2, so that the sample preservation is completed.

Example 2

This embodiment 2 is accomplished on the basis of embodiment 1, through the cooperation of sealing washer 16 and annular groove 15, increases test tube leakproofness, specifically:

as shown in fig. 2-3, the pipe cap 1 includes an upper cover plate 11 and a connecting cover plate 12, the top end of the connecting cover plate 12 is connected to the upper cover plate 11, a first thread 121 is disposed on the inner wall of the connecting cover plate 12, a second thread 20 is disposed on the outer wall of the upper end of the pipe body 2, and the pipe cap 1 is rotatably connected to the pipe body 2 through the cooperation of the first thread 121 and the second thread 20.

As shown in fig. 4, a top support 14 is connected to the inner wall of the upper cover plate 11, an annular groove 15 is provided at the upper end of the top support 14, and a sealing ring 16 matched with the annular groove 15 is sleeved on the annular groove 15. The top support 14 is in a round table shape, the outer diameter of the upper end of the top support 14 is smaller than the outer diameter of the lower end of the top support, and even if the sealing ring is separated from the annular groove in the upper end of the top support, the sealing ring can be kept on the side edge of the round table and cannot directly fall off, the sealing effect of the test tube is affected, and the occurrence rate of adverse events is reduced.

Example 3

This embodiment 3 is completed on the basis of embodiment 1 or embodiment 2, and the third blade 13 and the first blade 21 are used to cut the separator 3, so as to improve the separation efficiency of the separator 3, specifically:

as shown in fig. 2 to 3, the separation blade includes a third blade 13, and the third blade 13 is attached to the inside of the end of the connection cover plate 12. Preferably, the third blade 13 is annular dentate blade, and the inside upwards also is the arc design in third blade 13 bottom, improves the fluency that the test tube opened and shut. The wedge-shaped design of the first blade 21 and the arc-shaped groove 22 is beneficial to being matched with the third blade 13 for use, the efficiency of separating the sampler is improved,

after the nasopharyngeal secretion of the test object and the mucous membrane sample thereof are collected, the test tube is opened, the tube cover 1 is separated from the tube body 2, the head of the sampler 3 with the sample extends into the tube body 2, the handle part of the sampler 3 is placed on the first blade 21, the tube cover 1 is covered on the tube body 2, the upper end of the tube cover 1 is pressed, the third blade 13 on the cover body 1 acts on one side of the handle part of the sampler 3, under the action of pressure, the first blade 21 and the third blade 13 act on the handle part of the sampler 3 together, the head of the sampler 3 is cut, and the sampler slides downwards into the tube body 2, and the sample storage is completed.

Or the sampler 3 is not cut off by the third blade 13 and the first blade 21, the handle part of the sampler 3 slides into the arc-shaped groove 22, and the third blade 13 cuts off and separates the head part of the sampler 3 through the rotation fit between the tube cover 1 and the tube body 2, so that the head part of the sampler 3 slides down into the tube body 2, and the sample storage is completed.

Example 4

This embodiment 4 is completed on the basis of embodiment 1 or embodiment 2, and as shown in fig. 3 to 4, the separation efficiency of the separator 3 is improved by using the second blade 17, specifically:

as shown in fig. 2-4, the separator includes a second blade 17, and the second blade 17 is attached to the bottom of the top holder 14. Preferably, the lower edge of the second blade 17 protrudes above the plane of the lower edge of the connecting cover plate 12. The second blade 17 is in the shape of a lotus petal, the second blade 17 is designed to be bilateral cutting edges towards the lateral lower side, and the longitudinal section and the transverse section of the second blade 17 are both arc-shaped.

After the nasopharyngeal secretion of the test object and the mucous membrane sample thereof are collected, the test tube is opened, the tube cover 1 is separated from the tube body 2, the head of the sampler 3 with the sample is arranged in the tube body 2, the handle of the sampler 3 is arranged in the arc-shaped groove 22, the tube cover 1 is covered on the tube body 2, the head of the sampler 3 is arranged in the depression between the second blades 17, the tube cover 1 is rotated, the head of the sampler 3 is twisted and broken by utilizing the interaction of the second blades 17 and the first blades 21, and the sample storage is completed.

Example 5

This embodiment 5 is completed on the basis of embodiment 1 or embodiment 2, and as shown in fig. 3 to 4, the separation efficiency of the separator 3 is improved by the cooperation of the second blade 17 and the third blade 13, specifically:

as shown in fig. 3 to 4, the separation blade includes a third blade 13 and a second blade 17, the third blade 13 is connected to the inner side of the end of the connection cover plate 12, and the second blade 17 is connected to the bottom of the holder 14.

After the nasopharyngeal secretion and mucosa samples of a test object are collected, the test tube is opened, the tube cover 1 is separated from the tube body 2, the head of the sampler 3 with the samples is arranged in the tube body 2, the handle of the sampler 3 is arranged on the first blade 21 or in the arc-shaped groove 22, the tube cover 1 is covered on the tube body 2, the tube cover 1 is rotated, the sampler 3 is fixed in the arc-shaped groove 22, and the head of the sampler 3 is twisted and separated by utilizing the interaction between the second blade 17 and the first blade 21 or the interaction between the third blade 13 and the first blade 21, so that the samples are stored.

More specifically, the utility model provides a pair of test tube is used in nucleic acid sampling can separate the head and the stalk portion of sample thief 3 more high-efficiently, effectively reduces the invalid vibrations that traditional physics rupture separation method brought, shortens sample thief 3 separation simultaneously greatly and shakes in the twinkling of an eye and test tube totally enclosed time difference. The shortening of time difference can effectively avoid 3 separation of sample thief vibrations that produce in the twinkling of an eye to lead to in vitro to preserve liquid excessive, perhaps the adverse event that is polluted swab head and splashes outside the test tube takes place. The head and the tail of the sampler are separated by a cutting method, so that the size of a gap between the tube cover 1 and the edge of the tube body 2 when the collection and the breaking operation of the head of the sampler 3 are carried out is reduced, and the accidental falling of cotton swabs is reduced. The improved jacking 14 also effectively prevents the sealing ring 16 from accidentally prolapsing. The final aim is to effectively reduce the cross-infection rate in the nucleic acid sampling process.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. A test tube for nucleic acid sampling is characterized by comprising a tube cover (1) and a tube body (2), wherein the tube cover (1) is spirally connected to the tube body (2), and a separation sheet is arranged on the tube cover (1);

the top end of the pipe body (2) is respectively provided with a first blade (21) and an arc-shaped groove (22), the first blade (21) is located on the inner side of the top end of the pipe body (2), and the first blade (21) is connected with the arc-shaped groove (22) at intervals;

the separating sheet is respectively matched with the first blade (21) and the arc-shaped groove (22) to separate the head of the sampler (3).

2. The test tube for nucleic acid sampling according to claim 1, wherein the tube cap (1) comprises an upper cover plate (11), a connection cover plate (12) and a top holder (14), the top end of the connection cover plate (12) is connected to the upper cover plate (11), and the connection cover plate (12) is adapted to the tube body (2);

the inner wall of the upper cover plate (11) is connected with the jacking support (14), the upper end of the jacking support (14) is provided with an annular groove (15), and the annular groove (15) is sleeved with a sealing ring (16) matched with the annular groove.

3. The nucleic acid sampling tube according to claim 2, wherein the separation sheet comprises a third blade (13) and/or a second blade (17), the third blade (13) is attached to the inner side of the distal end of the connection cover plate (12), and the second blade (17) is attached to the bottom of the top holder (14).

4. The nucleic acid sampling cuvette according to claim 3, wherein a lower edge of the second blade (17) protrudes from a plane of a lower edge of the connection cover plate (12).

5. The nucleic acid sampling tube according to claim 4, wherein the second blade (17) has a lotus petal shape, and both the longitudinal and transverse surfaces of the second blade (17) have an arc shape.

6. The nucleic acid sampling tube according to claim 1, wherein the first blade (21) and the arc-shaped groove (22) are formed in a shape of an inverted wedge.

7. The nucleic acid sampling tube according to claim 2, wherein the top holder (14) has a circular truncated cone shape, and an outer diameter of an upper end of the top holder (14) is smaller than an outer diameter of a lower end of the top holder (14).

8. The test tube for nucleic acid sampling according to claim 3, wherein the third blade (13) is a ring-shaped toothed blade.

9. The test tube for nucleic acid sampling according to claim 1, wherein the cap (1) is a hollow cylinder with a downward opening, and the tube body (2) is a hollow cylinder with an upward opening.

10. The test tube for nucleic acid sampling according to claim 2, wherein the inner wall of the connection cover plate (12) is provided with a first thread (121), the outer wall of the upper end of the tube body (2) is provided with a second thread (20), and the tube cap (1) is rotatably connected to the tube body (2) through the cooperation of the first thread (121) and the second thread (20).

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