CN215424818U

CN215424818U - Flexible swab

Info

Publication number: CN215424818U
Application number: CN202121337870.XU
Authority: CN
Inventors: 陈波
Original assignee: Shenzhen Maidi Biotechnology Co ltd
Current assignee: Shenzhen Maidi Biotechnology Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-01-07
Anticipated expiration: 2031-06-16

Abstract

The present invention provides a flexible swab comprising: a nylon fiber head and a holding rod; the holding rod is formed by connecting a section of thick rod with a first section diameter and a section of thin rod with a second section diameter, the first section diameter is larger than the second section diameter, and the nylon fiber head is arranged at one end of the thin rod far away from the thick rod; the thin rod and the thick rod are made of PP plastic, and the diameter of the second section is less than 1 mm; the thick rod is provided with a cutting groove. The thin rod is thin, so that the thin rod can be easily inserted into the nasal cavity of a subject. In addition, because thin pole and thick pole comprise PP plastics, under the condition that its section diameter is thin enough, can have the flexibility, can adapt to the nasal cavity inner structure of person under test well, only need can insert the nasal cavity of person under test with less strength, reduce person under test's uncomfortable sense, and the pole can not be disconnected in the nasal cavity.

Description

Flexible swab

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a flexible swab.

Background

At present, new infectious diseases frequently appear in human society, particularly infectious diseases which are infected through respiratory tract and have great harm to human bodies, represented by new coronary virus diseases in 2019, and besides traditional treatment means and vaccine injection, large-scale screening actions can be carried out as soon as possible, so that the method is also a very important epidemic situation control means. The current epidemic infected person screening is mainly carried out by nucleic acid detection, in particular to the method of collecting the respiratory tract body fluid of a tested person and then carrying out nucleic acid detection on the body fluid. The collection method is to collect the body fluid of a subject by inserting a swab such as a cotton swab into the oral cavity or nasal cavity of the subject.

However, the existing swab has a large hardness and a large diameter, and particularly, when a nasal swab for accurate detection is used for collecting a sample, a large force may be required to insert the cotton head portion of the swab into the nasal cavity of a subject, and the subject is required to maintain a fixed posture. The great discomfort is caused to the testee, or the risk that the rod is broken at the sampling position exists, so that people are not willing to actively cooperate with the epidemic screening work.

SUMMERY OF THE UTILITY MODEL

In a first aspect of the utility model, there is provided a flexible swab capable of being bent, comprising: a nylon fiber head and a holding rod,

the holding rod is formed by connecting a section of thick rod with a first section diameter and a section of thin rod with a second section diameter, the first section diameter is larger than the second section diameter, and the nylon fiber head is arranged at one end of the thin rod far away from the thick rod;

the thin rod and the thick rod are made of PP plastic, and the diameter of the second section is smaller than 1 mm;

the thick rod is provided with a cutting groove.

In a possible embodiment of the first aspect of the utility model, the cutting groove is a groove formed by an annular recess on the thick bar.

In a possible embodiment of the first aspect of the present invention, a transition structure in a shape of a circular truncated cone is disposed at a connection portion of the thick rod and the thin rod, a bottom diameter of the transition structure is equal to the diameter of the first section, and a top diameter of the transition structure is equal to the diameter of the second section.

In a possible embodiment of the first aspect of the utility model, the slot is provided at a location where the transition structure is connected to the thicker rod.

In one possible embodiment of the first aspect of the present invention, the first cut surface has a diameter of 2-2.5 mm.

In one possible embodiment of the first aspect of the present invention, the thin rod is formed with a spherical convex head on one side of the nylon fiber head, and the diameter of the convex head is larger than the second tangent plane diameter and smaller than the first tangent plane diameter.

In one possible embodiment of the first aspect of the utility model, the nylon fiber head is composed of nylon flock flocked on the thin rod.

In one possible embodiment of the first aspect of the utility model, the length of the nylon fiber head is 18mm and the diameter of the protruding head is 4 mm.

In one possible embodiment of the first aspect of the present invention, the thick rod has a length of 87 mm.

In one possible embodiment of the first aspect of the utility model, the thick rod is provided with a bascule on an end remote from the nylon fiber head.

The flexible swab provided by the utility model has the beneficial technical effects that: the holding rod of the flexible swab is composed of a thick rod and a thin rod, and the nylon fiber head of the flexible swab is arranged on the thin rod with a smaller section diameter, and the thin rod can be easily inserted into the nasal cavity of a testee due to the thinness of the thin rod. In addition, because the thin rod and the thick rod are made of PP plastics, the thin rod and the thick rod can have flexibility under the condition that the section diameter is thin enough, and the most important point is that the rod made of ABS materials can be broken, the rod can be well adapted to the inner structure of the nasal cavity of a testee, the rod can be inserted into the nasal cavity of the testee with small force, the discomfort of the testee is reduced, and the risk that the rod is broken at a sampling part is reduced or avoided. In addition, the thick rod of the flexible swab is provided with a cutting groove, so that medical staff can regularly break the flexible swab through the cutting groove and discard the thick rod which is not needed in the subsequent process, only the thin rod with the sample is reserved and put into the test tube containing the preservation solution, and therefore the space needed for preserving the flexible swab can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a flexible swab provided in accordance with one embodiment of the present invention;

FIG. 2 is a schematic view of a flexible swab constructed in accordance with an alternative embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In one embodiment of the present invention, as shown in FIG. 1, there is provided a flexible swab comprising: a nylon fiber head 10 and a holding rod 20,

the holding rod 20 is formed by connecting a section of thick rod 21 with a first section diameter and a section of thin rod 22 with a second section diameter, the first section diameter is larger than the second section diameter, and the nylon fiber head 10 is arranged at one end, far away from the thick rod 21, of the thin rod 22.

Specifically, the flexible swab is composed of a nylon fiber head 10 for collecting a body fluid sample of a subject and a holding rod 20, wherein the holding rod 20 is composed of two parts, namely a thick rod 21 for being held by a detection person and a thin rod 22 for being inserted into the subject, and the diameter of a first section of the thick rod 21 is larger than that of a second section of the thin rod 22. Further, the nylon fiber head 10 is disposed at an end of the thin rod 22 far from the thick rod 21.

Further, the thin rod 22 is made of PP plastic, and the diameter of the second section is less than 1 mm.

Specifically, in order to provide flexibility to the thin rod 22 portion, the thin rod 22 portion of the flexible swab provided in the present embodiment is made of PP plastic, and the second section diameter thereof is smaller than 1mm, for which sufficient mechanical strength of the thin rod 22 portion can be maintained, and at the same time, the thin rod 22 portion can be provided with flexibility, that is, can be flexibly bent, thereby enabling the nylon fiber tip 10 provided to the thin rod 22 to be easily inserted into the cavity of the nasal cavity or the like of the subject.

Further, the thick rod 21 is provided with a cutting groove 23.

Specifically, after a body fluid sample of a subject is collected, the swab needs to be stored in a container containing a storage solution, and in order to save a storage space, the grip 20 needs to be cut, that is, only a part of the nylon fiber tip 10 and a part of the grip 20 are retained. In order to achieve the above purpose, the inspector often needs to cut with a tool such as scissors or even bend directly, which may cause the collected sample to be contaminated besides being inconvenient. Therefore, the notch 23 formed on the thick rod 21 of the flexible swab provided by the present embodiment can allow the inspector to easily break the flexible swab regularly and discard the unnecessary handle portion, thereby saving storage space. Preferably, the cutting groove 23 is provided on the thick rod 21, and if the cutting groove 23 is provided on the thin rod 22, firstly, the mechanical strength of the thin rod 22 is affected, and secondly, the nylon fiber head 10 portion may be contaminated when the thin rod 22 is broken.

In another particular embodiment, the cutting groove 23 is a groove formed by an annular recess on the thicker rod 21.

In particular, in order to further facilitate the breaking of the above-mentioned cutting groove 23, the above-mentioned cutting groove 23 is a groove formed by an annular recess on the thick bar 21. With this configuration, the notch 23 can be regularly broken by a tester applying force from any direction and then stored.

In another specific embodiment, a transition structure 24 in a truncated cone shape is disposed at a connection portion of the thick rod 21 and the thin rod 22, a bottom diameter of the transition structure 24 is equal to the diameter of the first section, and a top diameter of the transition structure 24 is equal to the diameter of the second section.

In particular, in the specific production process of the flexible swab, the handle is often produced by using an injection molding integral molding technology, and at this time, since the handle includes the thick rod 21 and the thin rod 22 with different section diameters, if the injection molding production is directly performed, the joint portion of the thick rod 21 and the thin rod 22 may be flawed, thereby causing the handle 20 to be scrapped. In order to solve the above problem, in the embodiment, the connecting portion of the thick rod 21 and the thin rod 22 is provided with a circular truncated cone-shaped transition structure 24, that is, a circular truncated cone structure with a lower bottom diameter equal to the first tangent plane diameter and an upper bottom diameter equal to the second tangent plane diameter is introduced, so that the thick rod 21 and the thin rod 22 can be transited more gently, and further, during injection molding production, fluid can fill the mold more smoothly, thereby improving the yield of the grip 20.

In another specific embodiment, the cutting slot 23 is provided at the location where the transition structure 24 is connected to the thicker bar 21.

Specifically, by arranging the cutting groove 23 at the position where the transition structure 24 is connected with the thick rod 21, the detection personnel can easily find the cutting groove 23 and break the cutting groove, and the transition structure part left after breaking can also serve as the thick rod 21 part to be held, so that the holding stability can be provided.

In another specific embodiment, the first cut surface has a diameter of 2-2.5 mm.

Specifically, in order to make the grip of the inspector more stable, the diameter of the first cut surface of the thick shaft 21 is preferably 2 to 2.5 cm. In an alternative embodiment, the thick rod 21 does not have to be a uniform strip-like structure, and may be a strip-like structure with a central bulge, or a structure with a bulge at one end held by the inspector, as shown in fig. 2.

In another specific embodiment, the thin rod 22 is formed with a spherical protruding head 11 on one side of the nylon fiber head 10, and the diameter of the protruding head 11 is larger than the second section diameter and smaller than the first section diameter.

Specifically, the thin shaft 22 of the flexible swab provided in the present embodiment is formed with a spherical protruding head 11 at one side of the nylon fiber head 10 for fixing the nylon fiber head 10 and slightly expanding one end of the nylon fiber head 10 to increase the contact area with the human subject.

In another specific embodiment, the nylon fiber head 10 is composed of nylon flock flocked on the wand 22.

Specifically, in order to quickly produce a flexible swab, the present embodiment provides a flexible swab having a nylon fiber head 10 comprised of nylon fluff flocked onto a stem 22. Further, by the electrostatic flocking process, it is possible to rapidly plant nylon fluff on the adhesive-coated thin rod 22 and form the nylon fiber head 10.

In another specific embodiment, the length of the nylon fiber head 10 is 18mm, and the diameter of the protruding head 11 is 4 mm.

Specifically, to maximize the density of flocking on the nylon fiber head 10, the preferred length of the nylon fiber head 10 is 18mm and the preferred diameter of the protruding head 11 is 4 mm.

In another specific embodiment, the thick rod 21 has a length of 87 mm.

Specifically, the thick rod 21 is preferably 87mm long for the convenience of holding by the inspector.

In another specific embodiment, the thick rod 21 is provided with a bascule 25 on the end away from the nylon fiber head 10.

Specifically, in the present embodiment, a shining pattern 25 is provided on the end of the thick shaft 21 away from the thin shaft 22, because the person who performs nucleic acid detection generally wears rubber gloves to prevent various contamination, and at this time, the flexible swab may slip or be held unstably when being held. Further, through setting up and shine line 25, can produce comparatively crude texture on smooth holding rod 20 to increase the frictional force when staff grips holding rod 20, prevent to grip shakiness and then lead to dropping. In some alternative embodiments, the basking marks 25 may be cross marks, vertical marks, circular marks, diamond marks, and leather marks. In an alternative embodiment, a textured reverse mold may be provided in the mold used to produce the grip 20, and then the bascule 25 may be formed on the grip 20 during the formation of the integral molding.

The technical features of the above embodiments may be arbitrarily combined, and for the sake of brief description, all possible combinations of the technical features in the above embodiments are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A flexible swab, comprising: a nylon fiber head and a holding rod,

the thick rod is provided with a cutting groove.

2. The flexible swab of claim 1 wherein:

the cutting groove is a groove formed by an annular depression on the thick rod.

3. The flexible swab of claim 1 wherein:

the connecting part of the thick rod and the thin rod is provided with a round table-shaped transition structure, the diameter of the lower bottom of the transition structure is equal to that of the first tangent plane, and the diameter of the upper bottom of the transition structure is equal to that of the second tangent plane.

4. A flexible swab according to claim 3 wherein:

the cutting groove is arranged at the position where the transition structure is connected with the thick rod.

5. The flexible swab of claim 1 wherein:

the diameter of the first tangent plane is 2-2.5 mm.

6. The flexible swab of claim 1 wherein:

the thin rod is provided with a spherical convex head on one side of the nylon fiber head, and the diameter of the convex head is larger than that of the second tangent plane and smaller than that of the first tangent plane.

7. The flexible swab of claim 6 wherein:

the nylon fiber head is composed of nylon fluff flocked on the thin rod.

8. The flexible swab of claim 7 wherein:

the length of nylon fiber head is 18mm, the diameter of protruding head is 4 mm.

9. The flexible swab of claim 1 wherein:

the thick rod is 87mm in length.

10. The flexible swab of claim 1 wherein:

the thick rod is provided with suntan lines at one end far away from the nylon fiber head.