CN216284477U

CN216284477U - Novel piston type sampling tube

Info

Publication number: CN216284477U
Application number: CN202122398129.0U
Authority: CN
Inventors: 高晶晶; 张宇蔺; 杨辰
Original assignee: Suzhou Municipal Hospital
Current assignee: Suzhou Municipal Hospital
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-12
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a sampling tube, in particular to a novel piston type sampling tube, which comprises a preserving fluid and also comprises: a tube barrel; a piston slidably mounted in the bottom of the barrel; the sampling cover is fixed on the top of the pipe barrel through threads, and a liquid outlet hole is formed in the top of the sampling cover; the liquid outlet pipe is fixed at the bottom of the liquid outlet hole and communicated with the pipe barrel; the liquid outlet cover is arranged in the liquid outlet hole through threads; the sealing block is fixed inside the liquid outlet cover and is tightly pressed on the top of the liquid outlet pipe; the preservation solution is positioned in the barrel. According to the novel piston type sampling tube provided by the utility model, the piston structure is adopted to extrude the preservation liquid from the liquid outlet pipe at the top, only the liquid taking cap needs to be unscrewed, the liquid taking cap has sealing performance, is convenient to unscrew, improves the detection efficiency, and can be operated by a single person.

Description

Novel piston type sampling tube

Technical Field

The utility model relates to a sampling tube, in particular to a novel piston type sampling tube.

Background

In recent years, the novel coronavirus pneumonia (COVID-19) caused by the novel coronavirus SARS-CoV-2 has rapidly become a global epidemic. COVID-19 infection can be diagnosed from both the upper and lower respiratory tracts, including oropharynx, nasopharynx, sputum, and bronchial fluids. In the case of limited resources, samples of the upper respiratory tract such as oropharyngeal and nasopharyngeal swabs are easier to collect. After a sample is received by a detection laboratory, nucleic acid extraction and amplification are carried out on the sample as soon as possible so as to achieve the purpose of timely screening and diagnosis.

At present, a sampling tube for detecting virus nucleic acid generally comprises a tube body and a tube cover, wherein virus preservation liquid is filled in the tube body, and a disposable sampling swab and the like are also arranged in the tube body. After the virus sampling tube is conveyed to a detection laboratory, when a nucleic acid detector detects, a tube cover needs to be opened slightly, then a pipettor is used for sucking samples and adding samples, and then the tube cover is screwed down. Because the tube cap part need sealed body, prevents the weeping, consequently the tube cap is twisted more tightly usually, and is more laborious when leading to unscrewing the tube cap, when the detection volume is big, causes measurement personnel to point the gall to screw the cap, get liquid, application of sample, screw the cap and lead to whole measuring time longer, and the exposure risk increases.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a novel piston type sampling tube which is convenient to sample, short in detection time and good in sealing property, and the specific technical scheme is as follows:

the utility model provides a novel piston sampling pipe, includes the preservative fluid, still includes: a tube barrel; a piston slidably mounted in the bottom of the barrel; the sampling cover is fixed on the top of the pipe barrel through threads, and a liquid outlet hole is formed in the top of the sampling cover; the liquid outlet pipe is fixed at the bottom of the liquid outlet hole and communicated with the pipe barrel; the liquid outlet cover is arranged in the liquid outlet hole through threads; the sealing block is fixed inside the liquid outlet cover and is tightly pressed on the top of the liquid outlet pipe; the preservation solution is positioned in the barrel.

Preferably, the sealing block is in a circular truncated cone shape or a conical shape, and the top of the sealing block is inserted into the liquid outlet pipe.

Preferably, the top of the liquid outlet pipe is higher than the top of the sampling cover.

Preferably, the sampling cover is internally provided with a sealing ring which is tightly pressed on the top of the barrel.

Preferably, the piston further comprises a push rod fixed at the bottom of the piston, a connecting rod and a push plate are arranged on one side of the push rod, the connecting rod is movably inserted into a push groove of the pipe barrel, and the push plate is movably located on the outer circular surface of the pipe barrel. Preferably, the side of the barrel is provided with a scale.

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

according to the novel piston type sampling tube provided by the utility model, the piston structure is adopted to extrude the preservation liquid from the liquid outlet pipe at the top, only the liquid taking cap needs to be unscrewed, the liquid taking cap has sealing performance, is convenient to unscrew, improves the detection efficiency, can be operated by one person, and is short in detection time and small in exposure risk; the kit can be used for virus sampling, particularly for rapid sampling and sample adding of high-risk samples such as novel coronavirus and the like, and can also be used for other sampling purposes.

Drawings

FIG. 1 is a schematic structural diagram of a novel piston type sampling tube;

fig. 2 is a partial enlarged view at I in fig. 1.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings.

The novel piston sampling pipe that this embodiment provided can single accomplish uncap, move liquid application of sample operation fast, need not double operation, reduces the sample exposure risk, and operating efficiency improves about 5 times. The novel piston type sampling tube of the embodiment has a quantitative sample adding function.

As shown in fig. 1 and fig. 2, a novel piston type sampling tube comprises a preservation liquid 6, a tube barrel 1, a piston 5, a sampling cover 2, a liquid outlet tube 4, a liquid outlet cover 3 and a sealing block 8.

The top of the pipe barrel 1 is provided with external threads, the pipe barrel 1 is made of transparent plastic, and the side surface of the pipe barrel 1 is provided with scales 11; piston 5 slidable mounting is in the bottom of barrel 1, the top surface of piston 5 aligns with 0 line of scale 11, push rod 9 is equipped with to the bottom of piston 5, one side of push rod 9 is equipped with connecting rod 92 and slurcam 91, connecting rod 92 is connected with push rod 9 and slurcam 91 respectively, connecting rod 92 activity is inserted in the promotion inslot 12 of barrel 1, the promotion inslot 12 is the kidney slot, be located one side of barrel 1 bottom, and be located the below of piston 5, slurcam 91 activity is located the outer disc of barrel 1, slurcam 91 is the arc board, laminate with the outer disc of barrel 1, can promote piston 5 through slurcam 91 and remove, be convenient for get liquid. The pushing plate 91 can push the piston 5 according to the scale 11 on the barrel 1 to realize quantitative sampling. A preservation fluid 6 is located within the barrel 1.

The sampling cover 2 is provided with internal threads, the sampling cover 2 is fixed on the top of the pipe barrel 1 through threads, the top of the sampling cover 2 is provided with a liquid outlet hole 21, and the liquid outlet hole 21 is provided with the internal threads; the inside of the sampling cover 2 is provided with a sealing ring which realizes the sealing between the sampling cover 2 and the pipe barrel 1.

The liquid outlet pipe 4 is a hard pipe, the liquid outlet pipe 4 is hermetically fixed at the bottom of the liquid outlet hole 21 and communicated with the pipe barrel 1, and the top of the liquid outlet pipe 4 is higher than the top of the sampling cover 2. The bottom of drain pipe 4 and the bottom parallel and level of sample lid 2, or be a little higher than the bottom of sample lid 2, the highest no longer than 1mm avoids stretching into 1 overlength of bobbin and leads to can not getting liquid or get liquid volume not enough.

The outer circle surface of the liquid outlet cover 3 is provided with external threads, and the liquid outlet cover 3 is arranged in the liquid outlet hole 21 through threads and matched with the sampling cover 2.

The sealing block 8 is in a round table shape or a conical shape, the sealing block 8 is particularly elastic and can be made of silica gel or rubber, the sealing block 8 is fixed at the bottom of the liquid outlet cover 3 through glue, when the liquid outlet cover 3 is screwed in the liquid outlet hole 21, the top of the sealing block 8 is inserted into the liquid outlet pipe 4, the sealing of the liquid outlet pipe 4 is realized, and the sealing is reliable. In addition, the threaded connection of the liquid outlet cover 3 and the sampling cover 2 is used as a second seal, so that the reliability of double sealing is ensured.

When sampling the swab 7, the sampling cap 2 is unscrewed, the swab 7 thus sampled is inserted into the barrel 1, and then the sampling cap 2 is screwed on.

When liquid is taken, the liquid outlet cover 3 is unscrewed, the sampling cover 2 is screwed on the pipe barrel 1 at the moment, then the pipe barrel 1 is inverted, the pushing plate 91 is pushed, the pushing plate 91 pushes the piston 5 to move through the push rod 9, the moving distance of the pushing plate 91 is controlled according to the scale 11, quantitative sampling is completed, the liquid outlet cover 3 is screwed after sampling is completed, and sealing is kept.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.

Claims

1. The utility model provides a novel piston sampling pipe, includes preservative fluid (6), its characterized in that still includes:

a tube (1);

the piston (5) is mounted at the bottom of the barrel (1) in a sliding manner;

the sampling cover (2) is fixed on the top of the pipe barrel (1) through threads, and a liquid outlet hole (21) is formed in the top of the sampling cover (2);

the liquid outlet pipe (4) is fixed at the bottom of the liquid outlet hole (21) and communicated with the pipe barrel (1);

the liquid outlet cover (3) is arranged in the liquid outlet hole (21) through threads; and

the sealing block (8) is fixed inside the liquid outlet cover (3), and the sealing block (8) is tightly pressed on the top of the liquid outlet pipe (4);

the preservation liquid (6) is positioned in the tube barrel (1).

2. A new piston type sampling tube according to claim 1, characterized in that said sealing block (8) is in the shape of a truncated cone or a cone, and the top of said sealing block (8) is inserted inside said outlet tube (4).

3. A new piston-type sampling tube as claimed in claim 1 or 2, characterized in that the top of the outlet tube (4) is higher than the top of the sampling cap (2).

4. A new piston-type sampling tube according to claim 1 or 2, characterized in that the inside of the sampling cap (2) is fitted with a sealing ring, which is pressed against the top of the barrel (1).

5. The novel piston type sampling tube as claimed in claim 1 or 2, further comprising a push rod (9), wherein the push rod (9) is fixed at the bottom of the piston (5), a connecting rod (92) and a pushing plate (91) are arranged at one side of the push rod (9), the connecting rod (92) is movably inserted into the pushing groove (12) of the tube barrel (1), and the pushing plate (91) is movably located on the outer circumferential surface of the tube barrel (1).

6. A new piston-type sampling tube according to claim 1 or 2, characterized in that the side of the barrel (1) is provided with a scale (11).