CN111839601A

CN111839601A - Nasopharyngeal swab

Info

Publication number: CN111839601A
Application number: CN202010722541.0A
Authority: CN
Inventors: 孙喜琢
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2020-10-30

Abstract

The invention provides a nasopharyngeal swab, which comprises a flexible handle rod and a collecting head which is arranged at the top end of the handle rod and has excellent water absorption performance, so that trace detection materials such as saliva, blood, oral or nasal secretion, superficial epithelial cells and the like have excellent collecting performance; also comprises a section of storage container in the shape of a test tube; the root of the handle is provided with a conveniently held expansion part, virus or cell conveying preservation liquid is sealed in the expansion part, an interface device sealed with the mouth of the preservation container is arranged outside the expansion part, and when the collecting head is preserved in the preservation container, the expansion part is exposed out of the liquid surface of the virus or cell preservation liquid in the preservation container. According to the invention, the root part of the handle rod of the swab is provided with the expansion part for storing the virus cell preservation solution and keeping the virus cell preservation solution outside the storage container during storage, so that the virus or cell preservation solution is not required to be broken and removed while being stored, the use is more convenient, and the sampling safety is improved.

Description

Nasopharyngeal swab

Technical Field

The present invention relates to the field of nasopharyngeal swabs.

Background

The nasopharyngeal swab is used for collecting nasopharyngeal samples and is used for detecting bacteria and viruses after collection. The current general procedure for nasopharyngeal swab collection is as follows:

1. the patient was asked to hold his head still and remove superficial secretions in the anterior nares.

2. Insert the swab gently and slowly through the nasal cavity into the nasopharynx.

3. When resistance is met, the secretion reaches the posterior nasopharynx, and the secretion is retained for a plurality of seconds to suck the secretion. The angle is adjusted slowly to reach the posterior nasopharynx part after encountering resistance.

4. The swab was gently swirled and placed in transport medium.

5. Swabs for virological testing were prepared by dipping the swab head into the virus or cell preservative fluid, discarding the tail, and screwing the cap.

6. The swab for the bacteriological test is inserted back into the sampling device or into a suitable transport device.

Currently, because of the prevalence of new coronavirus pneumonia, nasopharyngeal swabs are required to collect nasopharyngeal samples for nucleic acid examination. Chinese utility model patent publication No. CN 202960588U discloses a nasopharyngeal darning sample thief, and this nasopharyngeal darning sample thief includes gathering head and handle pole, the handle pole includes first handle pole and second handle pole, still be equipped with rupture portion between first handle pole and the gathering head, be equipped with beta structure between first handle pole and the second handle pole. This nasopharyngeal darning portion sepage sample thief, handle pole have set to two handle poles that can fold, are convenient for store and carry, and the collecting head has adopted nylon flocking swab simultaneously, can increase the volume of gathering, and the collecting head junction has designed rupture portion, has gathered the sample after the sample and has followed rupture portion rupture collecting head and to detect the sample, reducible pollution. The utility model discloses simple structure, convenient and practical.

Such nasopharyngeal fluid samplers (nasopharyngeal swabs) have the following disadvantages:

1. after collection of the nasopharyngeal swab, the swab with the pharyngeal exudate needs to be stored by virus or cell preservation solution, so that when the nasopharyngeal swab is collected, the nasopharyngeal fluid sampler (nasopharyngeal swab) needs to be provided, and a storage container (test tube) and the virus or cell preservation solution need to be carried, which brings troubles to collection of the nasopharyngeal swab.

2. When the nasopharyngeal swab is used for collection, the handle rod is held by hands, the handle rod needs to be broken off during storage, and the held part is removed to avoid pollution, so that the treatment is troublesome, particularly for some swabs, one end of each swab is a collection head dipped with nasopharyngeal seepage, the tail part needs to be broken off very difficultly, and tools are needed sometimes.

Disclosure of Invention

The invention provides a nasopharyngeal swab which integrates a virus or cell preservation solution and a preservation test tube aiming at the defects of the existing nasopharyngeal swab.

The technical scheme adopted by the invention for realizing the technical purpose is as follows: a nasopharyngeal swab comprises a flexible handle and a collecting head with excellent water absorption performance arranged at the top end of the handle; also comprises a section of storage container in the shape of a test tube; the root of the handle is provided with a conveniently-held expansion part, virus or cell preservation liquid is sealed in the expansion part, an interface device sealed with the mouth of the preservation container is arranged on the outer side of the expansion part, and when the collecting head is preserved in the preservation container, the expansion part is exposed out of the liquid surface of the virus or cell preservation liquid in the preservation container.

Further, in the above nasopharyngeal swab: the expansion part is provided with a piston which is internally extruded with virus or cell preservation solution, when the expansion part is connected with the preservation container in a sealing way, the expansion part is provided with an outlet through which the virus or cell preservation solution flows into the preservation container, and the outlet is covered with a layer of membrane which is broken when the hydraulic pressure of the virus or cell preservation solution is greater than a set threshold value.

Further, in the above nasopharyngeal swab: and a protection device for preventing the piston from pressing downwards.

Further, in the above nasopharyngeal swab: the top of the handle rod is spherical.

According to the invention, the root part of the handle rod of the swab is provided with the expansion part for storing the virus or the cell preservation solution and keeping the expansion part outside the storage container during storage, so that the expansion part does not need to be broken and removed while storing the virus or the cell preservation solution, and the use is more convenient.

The invention is further described with reference to the following figures and detailed description.

Drawings

FIG. 1 is a schematic representation of a nasopharyngeal swab of the present invention (not in use).

FIG. 2 is a schematic representation of a nasopharyngeal swab of the present invention (used).

FIG. 3 is an exploded view of the nasopharyngeal swab of the present invention.

Detailed Description

The present embodiment is a nasopharyngeal swab for collecting nasopharyngeal secretions and superficial epithelial cells, as shown in fig. 1, 2, and 3, comprising a flexible handle 2 and a collecting head 1 disposed at the top end of the handle 2 and having excellent water absorption performance; in this embodiment, the handle 2 is made of a plastic rod with good flexibility, and the tip thereof is spherical, so that when a nasopharyngeal swab is collected, the round top of the plastic rod enters the nostril of the collecting object, which does not damage the nostril of the collecting object, thereby facilitating collection. In this embodiment, the collecting head 1 is formed by winding a nylon flocked swab with good water absorption performance on the handle 2, and the collecting head can absorb the secretion of the nasopharynx or the superficial epithelial cells in the place (nasopharynx) as long as the collecting is performed.

In this embodiment, the device further comprises a holding container 5 in the shape of a test tube; the root of the handle 2 is provided with a convenient-to-hold expansion part 3, the expansion part 3 is internally sealed with virus or cell preservation solution 4, the outer side of the expansion part 3 is provided with an interface device sealed with the opening of the preservation container 5, and when the collecting head 1 is preserved in the preservation container 5, the expansion part 3 is exposed out of the liquid level of the virus or cell preservation solution 4 in the preservation container 5. In this embodiment, the shape of the expanded part 3 at the root of the handle 2 is the same as that of a cork plugged at the opening of a test tube, but the middle part of the expanded part is a container for storing virus or cell preservation solution 4, the outer side of the expanded part is convenient to hold, and the expanded part is convenient to grasp no matter the expanded part is collected by hand or by a manipulator. As shown in fig. 1.

In order to pour the virus or cell preservation solution 4 into the test tube as the preservation container 5 after the nasopharyngeal swab is collected, when the expanding part 3 is plugged into the mouth of the test tube, a collecting head for squeezing the virus or cell preservation solution 4 in the expanding part into the test tube to soak the swab is further arranged. In this embodiment, the piston 3-1 that presses the virus or cell preservation solution 4 is provided in the expansion part 3, and when the interface of the expansion part 3 and the storage container 5 is sealed, the outlet 3-2 through which the virus or cell preservation solution 4 flows into the storage container 5 is provided, and the outlet 3-2 is covered with a film that ruptures when the hydraulic pressure of the virus or cell preservation solution 4 is greater than a predetermined threshold value.

In this embodiment, after the collection is completed, the expanding portion 3 is blocked at the mouth of the test tube, and then a pressure is applied from the back, so that the piston 3-1 tends to press inwards, and a large pressure is generated in the virus or cell preservation solution 4, and at this time, the protective film arranged in the outlet 3-2 of the expanding portion 3 is crushed, and the virus or cell preservation solution 4 flows into the test tube to soak the collection head. In order to prevent the protective film in the outlet 3-2 of the expansion part 3 from being broken by the inadvertent pressing and to expose the virus or the cell preservation solution 4 in the expansion part 3, a protection device for preventing the piston 3-1 from being pressed downward is further provided in this embodiment. Currently, there are many such protection devices, and the piston 3-1 can only be pressed if the protection device is broken, especially on some medicine bottles.

Claims

1. A nasopharyngeal swab comprises a handle (2) with flexibility and a collecting head (1) which is arranged at the top end of the handle (2) and has excellent water absorption performance; the method is characterized in that: also comprises a section of holding container (5) in the shape of a test tube; the root of the handle (2) is provided with a conveniently-held swelling part (3), virus or cell preservation liquid (4) is sealed in the swelling part (3), an interface device sealed with the opening of the preservation container (5) is arranged on the outer side of the swelling part (3), and when the collecting head (1) is preserved in the preservation container (5), the swelling part (3) is exposed out of the liquid surface of the virus or cell preservation liquid (4) in the preservation container (5).

2. A nasopharyngeal swab according to claim 1, wherein: the swelling part (3) is provided with a piston (3-1) which extrudes the virus or cell preservation solution (4) inwards, when the swelling part (3) is in sealed connection with the preservation container (5), an outlet (3-2) for the virus or cell preservation solution (4) to flow into the preservation container (5) is arranged, and the outlet (3-2) is covered with a layer of membrane which is broken when the hydraulic pressure of the virus or cell preservation solution (4) is greater than a set threshold value.

3. A nasopharyngeal swab according to claim 1, wherein: and a protection device for preventing the piston (3-1) from pressing downwards is also included.

4. A nasopharyngeal swab according to claim 1, 2, or 3, wherein: the top of the handle rod (2) is spherical.