CN114504348B - Nucleic acid detection nose swab sampling device based on air pressure drive - Google Patents
Nucleic acid detection nose swab sampling device based on air pressure drive Download PDFInfo
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- CN114504348B CN114504348B CN202210246124.2A CN202210246124A CN114504348B CN 114504348 B CN114504348 B CN 114504348B CN 202210246124 A CN202210246124 A CN 202210246124A CN 114504348 B CN114504348 B CN 114504348B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/0096—Casings for storing test samples
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Abstract
The invention discloses a nucleic acid detection nasal swab sampling device based on air pressure driving, which comprises: a bladder and a main reservoir; the bag body is used for extending into the nasopharyngeal cavity of the examined person for sampling; the main container is provided with an air inlet and outlet structure, the main container is configured to be hermetically connected with the capsule body and forms an air cavity, and the air inlet and outlet structure is communicated with the air cavity; wherein the balloon is configured to extend out of the main container according to the air pressure in the air cavity and/or to retract into the main container according to the air pressure in the air cavity; this nucleic acid detection nose swab sampling device based on air pressure drive can promote the comfort of testee's nose swab sampling. The plastic film is different from the cotton swab, the shape of the plastic film can be changed according to the contact with the surfaces with different shapes, and the plastic film is in flexible contact with tissue cells in the nasal cavity, so that the pressing feeling of the sampling device is avoided, and the discomfort of a tested person is effectively avoided; and simultaneously, the medical consumables for sampling the nasal swab can be optimized.
Description
Technical Field
The invention relates to the technical field of medical supplies, in particular to a nasal swab sampling device for nucleic acid detection based on air pressure driving.
Background
At present, the nasal swab sampling process is mostly completed by medical staff through cotton swabs and test tubes. The medical staff holds the cotton swab by hand, the depth of the cotton swab extending into the nasal cavity of the person to be detected is about 8-10 cm, and after the head of the cotton swab is fully contacted with the tissue in the nasal cavity, the cotton swab is placed into a test tube with tissue fluid to be sealed and sent for detection. The sampling mode has large consumption of medical aseptic swabs, and simultaneously needs to purchase and use two types of medical articles, namely swabs and test tubes, and the current aseptic swabs are easy to cause injury to a detected person, so that improvement is needed.
Disclosure of Invention
The present invention provides a nasal swab sampling device for nucleic acid detection based on pneumatic actuation to solve the above technical problems. The comfort of the nasal swab sampling of the testee can be improved, and the medical consumables of the nasal swab sampling are optimized.
In order to solve the problems, the invention adopts the following technical scheme:
a pneumatic-based nucleic acid detection nasal swab sampling device, comprising: a capsule body and a main container. The capsule body is used for extending into the nasopharyngeal cavity of a person to be detected for sampling; the main container is provided with an air inlet and outlet structure, the main container is configured to be in sealing connection with the bag body and forms an air cavity, and the air inlet and outlet structure is communicated with the air cavity; wherein the balloon is configured to extend out of the main container according to the air pressure in the air cavity and/or to retract into the main container according to the air pressure in the air cavity.
In the pneumatic-drive-based nucleic acid detection nasal swab sampling device provided by at least one embodiment of the present disclosure, a medical cotton wool sandblasting layer is fixedly arranged on the contact end of the capsule body and the nasopharyngeal cavity of the person to be detected.
At least one embodiment of this disclosure provides in the nucleic acid detection nasal swab sampling device based on air pressure actuation, still include: a storage device; a storage device for storing interstitial fluid, the storage device configured to be removably coupled to the primary container and to seal the primary container; wherein, the capsule body is configured to be retracted into the main container to form a containing cavity for storing the tissue fluid discharged by the storage device.
In at least one embodiment of the present disclosure, a nasal swab sampling device for nucleic acid detection based on pneumatic actuation is provided, wherein the storage device comprises: a cover body and a secondary container; the cover body is provided with a liquid outlet hole; wherein the sub-container is fixedly arranged on the outer surface of the cover body, the liquid outlet hole is communicated with the sub-container, and the sub-container is configured to discharge interstitial fluid in the sub-container by pressing.
At least one embodiment of this disclosure provides a nasal swab sampling device for nucleic acid detection based on pneumatic actuation, wherein the medical cotton wool blasting layer is located at the bottom of the inner cavity of the containing cavity.
At least one embodiment of the present disclosure provides a nasal swab sampling device for nucleic acid detection based on pneumatic actuation, wherein the mouth of the capsule is fixed to an outer wall or an inner wall of the main container and encloses the main container.
At least one embodiment of the present disclosure provides a pneumatic-actuation-based nucleic acid detecting nasal swab sampling device wherein the mouth of the bladder has a first flange and the mouth of the main container has a second flange, the first flange being sealingly disposed on the second flange.
At least one embodiment of this disclosure provides in the nucleic acid detection nasal swab sampling device based on air pressure actuation, still includes: a seal and a retaining ring; the sealing element is used for keeping the sealing of the first flanging and the second flanging; the positioning ring is configured to be fixedly connected with the second flanging and is matched with the second flanging to clamp the first flanging and the sealing piece.
At least one embodiment of this disclosure provides in the nucleic acid detection nasal swab sampling device based on air pressure actuation, still include: introducing a component; the introducing assembly is used for introducing the capsule body positioned outside the main container into the main container when the air pressure in the air cavity reaches a set value.
In at least one embodiment of the present disclosure, a nasal swab sampling device for nucleic acid detection based on pneumatic actuation is provided, wherein the introducing component comprises: an elastic member; one end of the elastic member is fixedly disposed on the capsule, and the other end of the elastic member is fixedly disposed in the main tank.
The invention has the beneficial effects that:
1. the comfort of the nose swab sampling of the testee is improved; the plastic film is different from the cotton swab, and the shape of the plastic film can be changed according to the contact with surfaces with different shapes; through with the flexible contact of tissue cell in the nasal cavity, avoid sampling device's the sense of pressing, avoid effectively that the human being that tests feels uncomfortable.
2. Medical consumables for optimizing nasal swab sampling are widely applied to swab sampling, wound treatment and other processes, and the cotton swab is greatly required in the medical industry. This device has replaced the medical cotton swab in the sampling of nose swab, can alleviate the demand pressure to the cotton swab, optimizes the medical consumables.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a nasal swab sampling device for nucleic acid detection based on pneumatic actuation in embodiment 1.
Fig. 2 is a cross-sectional view of the air pressure-driven-based nucleic acid detecting nasal swab sampling device of example 1 with the capsule extended out of the main container.
Fig. 3 is a cross-sectional view of the air pressure-driven-based nucleic acid detecting nasal swab sampling device of example 1 when the capsule is retracted into the main container.
Fig. 4 is a cross-sectional view of the nasal swab sampling device for nucleic acid detection based on pneumatic actuation in example 2.
Fig. 5 is an enlarged view of a portion a in fig. 4.
Fig. 6 is a perspective view of the nasal swab sampling device for nucleic acid detection based on pneumatic actuation in example 1 and example 2.
Fig. 7 is a schematic structural view of the air pressure-driven nucleic acid detecting nasal swab sampling device in example 3 when the capsule is extended out of the main container.
Fig. 8 is a schematic view showing the nasal swab sampling device for nucleic acid detection based on pneumatic actuation according to example 3, which is stored after use.
Fig. 9 is a sectional view of the main container of the nasal swab sampling device for nucleic acid detection based on pneumatic actuation in example 3.
Fig. 10 is a perspective view of a storage unit in accordance with some embodiments of the invention.
Fig. 11 is a perspective view of a storage device according to some embodiments of the present invention.
Fig. 12 is a schematic view of the entire structure of the nasal swab sampling device for nucleic acid detection based on pneumatic actuation in example 4.
Fig. 13 is a cross-sectional view of a nasal swab sampling device for nucleic acid detection based on pneumatic actuation in example 4.
Fig. 14 is a schematic view of the connection of the introducing assembly and the capsule in embodiment 4.
In the figure:
10. a capsule body; 11. an accommodating chamber; 12. a first flanging; 13. second flanging;
20. a main vessel; 21. an exhaust hole; 22. an air cavity; 23. an elastic member;
30. a seal member;
40. a positioning ring;
50. spraying a sand layer on the medical cotton wool;
60. a storage device; 61. a cover body; 62. a sub-tank; 63. a liquid outlet hole;
70. introducing a component; 71. an elastic band; 72. positioning a plate; 73. and (4) an overflowing hole.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, and not all of the embodiments.
In the embodiments, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In addition, in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, terms such as installation, connection, and connection, etc., are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
At least one embodiment of the present disclosure provides a pneumatic drive-based nucleic acid detection nasal swab sampling device, comprising: a capsule body and a main container. The bag body is used for extending into the nasopharyngeal cavity of the examined person for sampling; the main container is provided with an air inlet and outlet structure, the main container is configured to be in sealing connection with the bag body and forms an air cavity, and the air inlet and outlet structure is communicated with the air cavity; wherein the capsule body is configured to extend out of the main container according to the air pressure in the air cavity and/or to be retracted into the main container according to the air pressure in the air cavity.
In the nasal swab sampling device for nucleic acid detection based on air pressure actuation provided by at least one embodiment of the present disclosure, a medical cotton wool sand blasting layer is fixedly arranged on a contact end of the capsule body and a nasopharyngeal cavity of a person to be detected.
At least one embodiment of this disclosure provides in the nucleic acid detection nasal swab sampling device based on air pressure actuation, still includes: a storage device; a storage device for storing interstitial fluid, the storage device configured to removably couple with the primary container and seal the primary container; wherein, the capsule body is configured to be retracted into the main container to form an accommodating cavity for storing the tissue fluid discharged by the storage device.
In at least one embodiment of the present disclosure, a nasal swab sampling device for nucleic acid detection based on pneumatic actuation is provided, wherein the storage device comprises: a cover body and an auxiliary container; the cover body is provided with a liquid outlet hole; the auxiliary container is fixedly arranged on the outer surface of the cover body, and the liquid outlet hole is communicated with the auxiliary container.
At least one embodiment of this disclosure provides a nasal swab sampling device for nucleic acid detection based on pneumatic actuation, wherein the medical cotton wool blasting layer is located at the bottom of the inner cavity of the containing cavity.
At least one embodiment of the present disclosure provides a nasal swab sampling device for nucleic acid detection based on pneumatic actuation, wherein the mouth of the capsule is fixed to an outer wall or an inner wall of the main container and encloses the main container.
At least one embodiment of the present disclosure provides a pneumatic-actuation-based nucleic acid detecting nasal swab sampling device wherein the mouth of the bladder has a first flange and the mouth of the main container has a second flange, the first flange being sealingly disposed on the second flange.
At least one embodiment of this disclosure provides in the nucleic acid detection nasal swab sampling device based on air pressure actuation, still includes: a seal and a retaining ring; the sealing element is used for keeping the sealing of the first flanging and the second flanging; the positioning ring is configured to be fixedly connected with the second flanging and is matched with the second flanging to clamp the first flanging and the sealing piece.
At least one embodiment of this disclosure provides in the nucleic acid detection nasal swab sampling device based on air pressure actuation, still include: introducing a component; the introducing assembly is used for introducing the capsule body outside the main container into the main container when the air pressure in the air cavity reaches a set value.
In at least one embodiment of the present disclosure, a nasal swab sampling device for nucleic acid detection based on pneumatic actuation is provided, wherein the introducing component comprises: an elastic member; one end of the elastic member is fixedly disposed on the capsule, and the other end of the elastic member is fixedly disposed in the main tank.
The following provides a general description of a pneumatic-actuation-based nucleic acid detection nasal swab sampling device according to an embodiment of the present disclosure, with reference to the accompanying drawings.
Example 1
As shown in fig. 1, 2, 3, 5 and 6, a pneumatic drive-based nucleic acid detection nasal swab sampling device according to at least one embodiment of the present disclosure includes: capsule 10, primary reservoir 20, seal 30 and retaining ring 40. The main container 20 has an exhaust hole 21, a plug (not shown) is arranged in the exhaust hole 21, the main container 20 is configured to be hermetically connected with the capsule 10 and forms an air cavity 22, and the exhaust hole 21 is communicated with the air cavity 22; wherein the air chamber is filled with air and the capsule 10 is extended out of the main container 20 by the pressure.
In this embodiment, the mouth of the capsule 10 has a first flange 12 and the mouth of the main container 20 has a second flange 13.
In the present embodiment, the positioning ring 40 is configured to be fixedly connected to the second flange 13, and the positioning ring 40 cooperates with the second flange 13 to clamp the first flange 12 and the sealing element 30, so as to achieve a good sealing effect.
In the present embodiment, the diameter of the balloon 10 is gradually reduced along the extending direction to form a conical structure, and the medical cotton wool sandblasting layer 50 is fixedly disposed at the conical tip of the balloon 10; the medical cotton wool sand-blasting layer 50 has the same function as a cotton swab head, has an adsorption function on intranasal tissue cells, and improves the collection effect.
In this embodiment, the capsule 10 is retracted into the main container 20 to form a containing cavity 11 for medical staff to add tissue fluid and keep the activity of the sampled tissue, and at this time, the medical cotton wool sand blasting layer 50 on the capsule 10 is located in the containing cavity 11.
In the present embodiment, the capsule 10 is made of polyethylene plastic.
In the present embodiment, the sealing member 30 is a rubber ring.
When using, insert the utricule and take a sample in the person's of being examined's nasal cavity, open the cock body after the sample for inside gas outgoing takes in the utricule to the main tank can, in order to promote the recovery efficiency of utricule in this embodiment, can be equipped with air exhaust equipment, takes out the negative pressure in the air cavity, makes in the retraction to the main tank that the utricule can be quick.
Example 2
As shown in fig. 1, 4, 5 and 6, a pneumatic drive based nucleic acid detection nasal swab sampling device according to at least one embodiment of the present disclosure is substantially identical to embodiment 1 except that a resilient member 23 is provided in the main container 20;
in this embodiment, the elastic member 23 is located in the air chamber 22, one end of the elastic member 23 is fixedly connected to the inner bottom surface of the main tank 20, and the other end of the elastic member 23 is fixedly connected to the capsule 10.
For example, the elastic member 23 may be a latex tape having elasticity.
When using, insert the intracavitary sample of person's of being examined with the utricule, open the cock body after the sample for inside gas outgoing, the utricule receives in the effect retraction of elastomeric element to the main container. Compared with the embodiment 1, the capsule body can be quickly retracted into the main container without matching with an air suction mechanism.
Example 3
As shown in fig. 7-11, a pneumatic drive based nucleic acid detection nasal swab sampling device according to at least one embodiment of the present disclosure comprises: capsule 10, main container 20, storage means 60.
In this embodiment, the main container 20 has an air vent 21, the capsule 10 is fixed to the inner wall of the main container in a sealing manner and forms an air cavity 22, and the air vent 21 is communicated with the air cavity 22; wherein the air chamber is filled with air and the capsule 10 is extended out of the main container 20 by the pressure. Illustratively, the capsule 10 is bonded to the inner wall of the primary container 20.
In the embodiment, the diameter of the balloon 10 is gradually reduced along the extending direction to form a conical structure, and the medical cotton wool sandblasting layer 50 is fixedly arranged at the conical tip of the balloon 10; the medical cotton wool sand-blasting layer 50 has the same function as a cotton swab head, has an adsorption function on intranasal tissue cells, and improves the collection effect.
In the present embodiment, the storage device 60 includes: a lid body 61 and a sub-tank 62; the cover body 61 is provided with a liquid outlet 63; the sub-container 62 is fixedly disposed on the outer surface of the cover 61, and the liquid outlet 63 is communicated with the sub-container 62.
In this embodiment, the capsule 10 is retracted into the main container 20 to form a receiving chamber 11 for storing the tissue fluid discharged from the sub-container 62, and the medical cotton wool blasting layer 50 on the capsule 10 is located in the receiving chamber 11.
In the present embodiment, the sub-tank 62 is a rubber container, and the tissue fluid is stored in the sub-tank 62 and can be discharged by pressing.
In this embodiment, both ends of the main container 20 can be detachably connected to the cover 61, and sealing is achieved; for example, both ends of the main container 20 are provided with male screws (not shown), the lid body 61 is provided with female screws (not shown) matching the male screws, and both ends of the main container 20 can be screwed and sealed with the lid body 61.
In the present embodiment, the use of the cover body 61 makes it possible to prevent the gas filled in the gas chamber 22 from being discharged.
In the present embodiment, the elastic member 23 is provided inside the main tank 20; further, the elastic component 23 is located in the air cavity 22, one end of the elastic component 23 is fixedly connected with the inner ground of the main container 20, and the other end of the elastic component 23 is fixed in the capsule 10.
When using, insert the utricule and take a sample in examinee's the nasal cavity, then twist out the terminal lid of main container, can be in order to realize exhausting, treat that the utricule is quick to be retrieved back in the main container, install the top of main container with the lid, and then seal main container, through pressing vice container at last, make its inside tissue fluid flow in hold the intracavity.
Example 4
As shown in fig. 10-14, a pneumatic-based nucleic acid detecting nasal swab sampling device according to at least one embodiment of the present disclosure includes a capsule 10, a primary container 20, a storage device 60, and an introduction assembly 70. The main container 20 has a vent hole 21, and an air chamber 22 is formed between the main container 20 and the capsule 10.
In this embodiment, a medical cotton wool sandblasting layer 50 is fixedly disposed on the contact end of the bag 10 with the nasopharyngeal cavity of the subject.
In the present embodiment, the storage device 60 includes: a lid body 61 and a sub-tank 62; the cover body 61 is provided with a liquid outlet 63; the auxiliary container 62 is fixedly arranged on the outer surface of the cover body 61, the liquid outlet 63 is communicated with the auxiliary container 62, the auxiliary container 62 is a rubber container, the tissue fluid is stored in the auxiliary container 62, and the tissue fluid in the auxiliary container can be discharged by pressing; and the main container 20 is inserted into the cover body 61 to be sealed and coupled.
In this embodiment, the capsule 10 is configured to be retracted into the main container 20 to form a receiving chamber 11, and the receiving chamber 11 is used for storing the tissue fluid discharged from the sub-container 62.
In this embodiment, the medical cotton wool sandblasting layer 50 is located at the bottom of the inner cavity of the containing cavity 11.
In the present embodiment, the mouth of the capsule 10 is fixed to the outer wall of the main container 20 and seals the main container 20, and the cover 61 and the capsule 10 can jointly participate in the sealing of the main container 20, so as to achieve a good sealing effect. Illustratively, the mouth of the capsule 10 is bonded to the outer wall of the main container 20.
In this embodiment, the introduction assembly 70 is used to introduce the capsule 10, which is located outside the main container 20, into the main container 20 when the air chamber 22 is exhausted, and to exhaust the air in the air chamber 22.
In the present embodiment, the introducing component 70 includes: an elastic band 71 and a positioning plate 72; one end of the elastic band 71 is fixedly arranged on the capsule 10, the other end of the elastic band 71 is fixedly arranged on a positioning disc 72, the positioning disc 72 is positioned in the main container 20 and is fixedly connected with the main container 20, and an overflowing hole 73 is formed in the positioning disc 72.
In some embodiments, in order to avoid the leakage of interstitial fluid from the fluid outlet 63 during storage, a sealing layer (not shown) is provided on the cover body 61 to seal the fluid outlet 63, and when the sub-container 62 is pressed, the sealing layer is ruptured or failed under the action of pressure, so that the interstitial fluid can be discharged; illustratively, the sealing layer is a wax layer.
When the air inflation type nasal cavity mask is used, the cover body is detached, then air is inflated into the air cavity, so that air pressure in the air cavity is increased, the air bag body extends out of the main container under the action of the air pressure and forms a conical structure, and a worker can conveniently extend the air bag body into the nasal cavity of a detected person; after using up, with the gas outgoing in the gas chamber, the utricule receives in the effect of elastic webbing withdraws main container fast, installs the lid afterwards and presses vice container for interstitial fluid enters into and holds the intracavity, need collocation inflation equipment in this embodiment and use.
In the description herein, references to the description of the term "present embodiment," "some embodiments," "other embodiments," or "specific examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in the embodiments or examples of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Although embodiments of the present application have been shown and described above, the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included within the scope of the present invention; no element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such.
Claims (6)
1. A pneumatic drive-based nucleic acid detection nasal swab sampling device, comprising:
the capsule body is used for extending into the nasopharyngeal cavity of a person to be examined for sampling;
the main container is provided with an air inlet and outlet structure, the main container is configured to be in sealing connection with the bag body and forms an air cavity, and the air inlet and outlet structure is communicated with the air cavity; and
a storage device for storing interstitial fluid, the storage device configured to removably couple with the primary container and seal the primary container;
wherein, the capsule body is configured to be retracted into the main container to form a containing cavity for storing the tissue fluid discharged by the storage device;
the storage device comprises a cover body and an auxiliary container, wherein the cover body is provided with a liquid outlet hole;
wherein the secondary container is fixedly arranged on the outer surface of the cover body, the liquid outlet hole is communicated with the secondary container, tissue fluid is stored in the secondary container, and the secondary container is constructed to discharge the tissue fluid in the secondary container by pressing;
wherein the capsule body is configured to extend out of the main container according to the air pressure in the air cavity and/or to be retracted into the main container according to the air pressure in the air cavity.
2. The nasal swab sampling device for nucleic acid detection based on pneumatic driving as claimed in claim 1, wherein the bag body is fixedly provided with a medical cotton wool sandblasting layer at the contact end with the nasopharyngeal cavity of the person to be detected.
3. The nasal swab sampling device for pneumatic-based nucleic acid detection according to claim 2, wherein the medical cotton wool blasting layer is located at the bottom of the cavity of the accommodating cavity.
4. The pneumatic-based nucleic acid detecting nasal swab sampling device of claim 1, wherein the mouth of the bladder is secured to and seals the outer or inner wall of the primary container.
5. The pneumatic drive-based nucleic acid detection nasal swab sampling device of claim 1, further comprising:
and the introducing assembly is used for introducing the capsule body positioned outside the main container into the main container when the air pressure in the air cavity reaches a set value.
6. The nasal swab sampling device for pneumatic-based nucleic acid testing of claim 5, wherein the introduction assembly comprises:
an elastic member, one end of which is fixedly disposed on the capsule, and the other end of which is fixedly disposed in the main tank.
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| CN215605894U (en) * | 2021-04-15 | 2022-01-25 | 微因生物科技(杭州)有限公司 | Take buffer's nasopharynx swab |
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