CN219397360U

CN219397360U - Saliva collector

Info

Publication number: CN219397360U
Application number: CN202223548248.0U
Authority: CN
Inventors: 江光洪; 陈高明; 胡玉梅
Original assignee: Shenzhen Comma Medical Technology Co ltd; Biocomma Ltd
Current assignee: Huizhou Doudian Biotechnology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-07-25
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a saliva collector, which comprises a collecting pipe, a collector and a cover, wherein the collecting pipe is provided with a saliva accommodating cavity with an opening, the collecting pipe is also provided with a preserving fluid accommodating cavity positioned in the saliva accommodating cavity, the preserving fluid accommodating cavity is used for storing saliva protecting fluid, and the saliva accommodating cavity is used for accommodating saliva. The collector is detachably connected to the collection tube for guiding saliva into the saliva receiving chamber. The cap is removably attached to the collection tube. And a puncture structure is arranged on the cover and is used for communicating the saliva accommodating cavity with the preserving fluid accommodating cavity. The technical scheme of the utility model has the advantages of saving saliva collecting steps, and conveniently and rapidly completing saliva collection.

Description

Saliva collector

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a saliva collector.

Background

Human saliva contains a large amount of human cells, and human DNA (deoxyribonucleic acid) can be detected and extracted by saliva. Saliva DNA can replace blood DNA to complete various gene detection and analysis experiments. However, saliva is separated from the temperature of human body, human cells in saliva are easy to die, saliva DNA is easy to reproduce in saliva with high moisture content when being contacted with air during collection, and saliva DNA samples are polluted.

In order to solve the above problems, it is necessary to add a saliva preserving fluid to saliva, which enables the saliva to be stored at normal temperature and inhibits bacteria or viruses from proliferating in the saliva. In the related art, a storage tube for storing saliva and a preservation liquid tube for containing saliva preservation liquid are separately provided. The saliva collector collects saliva and guides the saliva into the storage tube, when the storage tube collects a preset amount of saliva, the quantitative saliva preservation liquid is immediately transferred into the storage tube from the preservation liquid tube by a liquid-transferring gun or the like, the storage tube is covered with a cover, and then the storage tube is shaken again to enable the saliva and the saliva preservation liquid to be fully mixed. However, the saliva collecting mode has a plurality of steps, and the operation is urgent, so that the saliva sample collecting efficiency is low and the saliva sample collecting quality is low.

Disclosure of Invention

The utility model mainly aims to provide a saliva collector, which aims to solve the problems that the existing saliva collection steps are more and not quick.

To achieve the above object, the present utility model provides a saliva collector including:

a collection tube provided with a saliva receiving chamber having a first opening for receiving saliva; the collecting pipe is also provided with a preservation liquid containing cavity positioned in the saliva containing cavity, and the preservation liquid containing cavity is used for storing saliva preservation liquid in a sealing mode;

a collector detachably connected to the collection tube for directing saliva into the saliva receiving chamber; and

A cap detachably connected to the collection tube; and a puncture structure is arranged on the cover and is used for communicating the saliva accommodating cavity with the preserving fluid accommodating cavity.

Optionally, the collection tube comprises a tube wall, a bottom wall, and a flexible membrane;

the bottom wall is arranged at one end of the pipe wall, and the flexible membrane is arranged in the pipe wall;

the bottom wall, the pipe wall and the flexible membrane are enclosed to form the preservation solution accommodating cavity for storing saliva preservation solution;

the tube wall and the flexible membrane are enclosed to form the saliva accommodating cavity for storing saliva;

the lid can dismantle connect in the pipe wall, the lid is equipped with puncture structure, puncture structure is used for puncturing the flexible membrane, intercommunication saliva holds the chamber with the preserving fluid holds the chamber.

Optionally, the tube wall comprises a first tube wall and a second tube wall;

the bottom wall is connected with one ends of the first pipe wall and the second pipe wall, the second pipe wall forms a second opening at the other end, and the bottom wall and the second pipe wall form the preservation solution accommodating cavity;

the first pipe wall is arranged on the periphery of the second pipe wall, and surrounds the bottom wall and the second pipe wall to form the saliva accommodating cavity with the first opening;

the flexible membrane is arranged at the second opening to seal the preservation fluid containing cavity, and the puncture structure is used for puncturing the flexible membrane and is communicated with the saliva containing cavity and the preservation fluid containing cavity.

Optionally, the first tube wall and the second tube wall are coaxially arranged.

Optionally, the length of the second pipe wall in the axial direction is smaller than the length of the first pipe wall in the axial direction.

Optionally, the tube wall further comprises a third tube wall, and the third tube wall is arranged on one side of the bottom wall far away from the first tube wall and forms a cover accommodating cavity with a third opening with the bottom wall; the cover is detachably connected to the cover accommodating cavity, and the cover accommodating cavity is used for accommodating the puncture structure.

Optionally, the cross section of the puncture structure is star-shaped or cross-shaped.

Optionally, the saliva collector further comprises a cap receiving cavity having a third opening, the cap receiving cavity being provided at an end of the collection tube remote from the first opening, the cap being detachably connected to the cap receiving cavity, the cap receiving cavity being adapted to receive the piercing structure.

Optionally, the collector comprises a funnel, a baffle and a connector;

the two sides of the partition board are respectively connected with the funnel and the connecting piece, and the funnel is used for guiding the collected saliva to flow to the direction of the partition board;

the partition board is also provided with an opening for saliva to pass through;

the connecting piece with the collecting pipe can dismantle the connection, just the connecting piece intercommunication first opening with the trompil is used for saliva to pass through in proper order the trompil with first opening gets into saliva holds the chamber.

Optionally, the openings are circular or annular, and the openings are distributed on the partition plate in an annular shape.

The technical scheme of the utility model adopts a scheme of adopting a two-cavity collecting pipe and a cover. Two accommodation cavities are arranged in the collecting pipe, one accommodation cavity is a preservation liquid accommodation cavity and used for packaging saliva preservation liquid, the other accommodation cavity is communicated with the outside and is a saliva accommodation cavity and used for collecting saliva samples. When saliva is collected, a saliva sample flows into the saliva receiving chamber. When a certain amount is collected, the collection is stopped, and the collection pipe is plugged by a cover. The saliva preservation solution and saliva are thoroughly mixed by standing, stirring or shaking the collection tube. After the saliva preservation solution and saliva are fully mixed, the saliva DNA sample can be stored for years at room temperature, and the growth of mould can be inhibited. Install in the collecting pipe both ends through lid and collector are integral type, facilitate the use. When the saliva collecting device is used, saliva can be directly collected, after the saliva collecting device is used, the collector is taken down from the opening end, the cover is taken down from the other end of the collecting pipe and is directly installed at the opening end of the collecting pipe, the puncture structure in the cover can directly puncture the sealing film of the preserving fluid, and the collecting pipe is turned upside down so that the saliva and the preserving fluid are fully mixed. Therefore, saliva preservation liquid does not need to be manually added into the saliva sample, the collection time is shortened, the saliva sample is enabled to be in contact with the outside air as little as possible, and the quality of the saliva sample is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of the structure of a saliva collector of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the collection tube of the saliva collector of the present utility model;

FIG. 3 is a schematic view of the structure of the cap of the saliva collector of the present utility model;

FIG. 4 is a semi-sectional view of the structure of the saliva collector of the present utility model;

FIG. 5 is a schematic view of the structure of a baffle of the saliva collector of the present utility model;

FIG. 6 is a schematic view of the saliva collector of the present utility model as it is being assembled;

FIG. 7 is a schematic view of the assembly of the saliva collector of the present utility model after collection.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Saliva collector	16	Flexible film
1	Collecting pipe	171	A first screw thread part
				11	Bottom wall	172	A second screw thread part
12	Pipe wall	2	Collector device
				121	First pipe wall	21	Funnel(s)
122	Second pipe wall	22	Partition board
				123	Third pipe wall	221	Perforating the hole
13	Saliva holding cavity	23	Connecting piece
				14	Preservation liquid holding cavity	3	Cover
15	Cover accommodating chamber	31	Puncture structure

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1, 6 and 7, the present utility model proposes an embodiment in which a saliva collector 100 comprises a collection tube 1 and a cap 3. The collecting tube 1 is provided with a saliva receiving chamber 13 having a first opening, the saliva receiving chamber 13 being for receiving saliva. The collection tube 1 is further provided with a preservation fluid containing cavity 14 in the saliva containing cavity 13, the preservation fluid containing cavity 14 being for hermetically storing saliva protecting fluid. The cap 3 is detachably connected to the collection tube 1. The lid 3 is provided with a piercing structure 31 for communicating the saliva accommodating chamber 13 with the preserving fluid accommodating chamber 14.

Specifically, the collection tube 1 has two chambers therein, one of which stores saliva preservation fluid, which is a preservation fluid-containing chamber 14, and the saliva preservation fluid is packaged with a frangible structure. The other chamber is empty and is used for collecting saliva samples, and is a saliva accommodating cavity 13, the two chambers are separated by a breakable structure, and after the breakable structure is broken, the two chambers are communicated. If the purpose of collecting saliva samples and saliva mixed liquor can be achieved without a breakable structure, the breakable structure can be eliminated. The cap 3 is provided with a piercing structure 31, and when the cap 3 is attached to the collection tube 1, the piercing structure 31 breaks the frangible structure to release saliva preservation fluid in the preservation fluid containing cavity 14.

Further, the breakable structure may be broken by external force such as shaking, pressing, etc., and may also be broken by special conditions such as temperature, HP value, etc.

Alternatively, the two accommodating chambers may be arranged in the same tubular structure or may be divided into two tubular structures. When the two chambers are arranged in the same tubular structure, one pipe is divided into two chambers by the breakable structure. When divided into two tubular structures, the two tubular structures can be juxtaposed or angularly connected, while the frangible structure of the chamber enclosing the saliva conserving liquid extends into the other tubular structure so that it can be broken by the piercing structure 31 on the lid 3.

Further, the optimal ratio of saliva sample to saliva preservation solution is 1:1, the volume ratio of the corresponding two chambers is slightly greater than 1:1. so that there is room for saliva and saliva preservation fluid to be received, flowed and mixed in the collecting tube 1.

Further, the collecting pipe 1 is made of transparent plastic materials, so that saliva samples in the collecting pipe 1 can be conveniently observed, and the outer side of the collecting pipe 1 is provided with a graduated scale for assisting in observation.

Through this embodiment, be equipped with two and hold the chamber in the collecting pipe 1, one of them holds the chamber for preserving fluid 14 for the encapsulation has saliva preserving fluid, and another holds the chamber intercommunication external world, holds the chamber for saliva 13, is used for collecting the saliva sample. When saliva is collected, a saliva sample flows into the saliva accommodating chamber 13. When a certain amount is collected, the collection is stopped, and the collection tube 1 is plugged with the cap 3. The saliva preservation solution and saliva are thoroughly mixed by standing, stirring or shaking the collection tube 1, etc. After the saliva preservation solution and saliva are fully mixed, the saliva DNA sample can be stored for years at room temperature, and the growth of mould can be inhibited.

In connection with fig. 2, the utility model proposes an embodiment in which the collection tube 1 comprises a tube wall 12, a bottom wall 11 and a flexible membrane 16. The bottom wall 11 is provided at one end of the tube wall 12, and the flexible membrane 16 is provided in the tube wall 12. The bottom wall 11, the tube wall 12 and the flexible membrane 16 enclose a preservation fluid containment chamber 14 for storing saliva preservation fluid. The tube wall 12 and the flexible membrane 16 enclose a saliva receiving chamber 13 for storing saliva. The cap 3 is detachably connected to the tube wall 12, the cap 3 being provided with a piercing structure 31, the piercing structure 31 being adapted to pierce the flexible membrane 16.

Specifically, the collecting pipe 1 is of a circular pipe-shaped structure, the side wall of the circular pipe-shaped structure is a pipe wall 12, one end of the circular pipe-shaped structure is opened, the other end of the circular pipe-shaped structure is sealed, and the sealing position is a bottom wall 11. Wherein the receiving space in the collecting tube 1 is separated by a flexible membrane 16 in the form of two receiving spaces. The saliva preserving fluid is stored in a containing cavity enclosed by the bottom wall 11, the pipe wall 12 and the flexible membrane 16, and the other cavity is empty and is used for collecting saliva samples.

Further, the flexible membrane 16 is a flexible structure such as an aluminum foil or a plastic film, and can be pierced by the piercing structure 31.

Through this embodiment, design two cavities in a pipe column structure, can reduce the complexity of collecting pipe 1 structure, not only do benefit to the production and processing of collecting pipe 1 more, also do benefit to saliva sample and saliva preservation liquid mixture. After the saliva sample is collected, the cap 3 is screwed on and seals the collecting tube 1, the puncture structure 31 on the cap 3 extends into the collecting tube 1, the flexible membrane 16 is punctured, saliva preservation liquid is released and mixed with the saliva sample, and the collection of the saliva sample is completed.

In connection with fig. 2, an embodiment of the present utility model is presented, wherein the tube wall 12 comprises a first tube wall 121 and a second tube wall 122. The first tube wall 121 and the bottom wall 11 enclose a saliva accommodating chamber 13. The second tube wall 122 is arranged in the saliva accommodating chamber 13, and the second tube wall 122, the bottom wall 11 and the flexible membrane 16 enclose a preserving fluid accommodating chamber 14. The cover 3 is detachably connected to the first tube wall 121.

Specifically, two tubular structures are provided, one of which is provided inside the other tubular structure, forming two accommodation chambers.

It will be appreciated that the ratio of saliva sample to saliva preservation fluid is 1 with the volume of the collection tube 1 unchanged: 1, the volumes of the holding fluid holding chamber 14 and the saliva holding chamber 13 have been determined, at which time the larger the bottom area of the tubular structure, the smaller the height. Therefore, when the inside of the collection tube 1 is partitioned into two cylindrical holding chambers having equal bottom areas and equal heights, the distance between the holding chamber for storing saliva preservation fluid and the flexible membrane 16 and the cap 3 is large, and the piercing structure 31 needs to be designed long. When the inside of the collecting tube 1 is divided into two cylindrical accommodating chambers and tubular accommodating chambers having equal bottom areas and equal heights, that is, the inside of the tube of the tubular accommodating chambers is a cylindrical accommodating chamber, the distance between the accommodating chamber storing saliva preservation liquid and the flexible membrane 16 and the cap 3 is short.

By this embodiment, the flexible membrane 16 of the preservation fluid containing cavity 14 is arranged at the opening close to the collecting tube 1, so that the puncture structure 31 of the cap 3 can be designed to be shorter, and the processing difficulty and the using difficulty of the cap 3 are reduced.

In connection with fig. 2, an embodiment of the present utility model is provided, in which the first pipe wall 121 and the second pipe wall 122 are coaxially disposed.

Specifically, the first pipe wall 121 is a circular pipe structure, the second pipe wall 122 is a circular pipe structure, and the center axes of the two pipe walls are coincident.

Further, the space in the second tube wall 122 is a preservation solution containing cavity 14 for storing saliva preservation solution. Between the first tube wall 121 and the second tube wall 122 is a saliva receiving chamber 13 for collecting saliva samples. The first tube wall 121 and the second tube wall 122 are coaxially arranged such that the receiving chamber storing the saliva conserving liquid is located at a central position storing the saliva sample.

It will be appreciated that the tube wall 12 is of circular tube construction, i.e. the collector tube 1 is of cylindrical construction, and that the cap 3 is connected to the collector tube 1, also of cylindrical construction. In order to puncture the flexible membrane 16 of the collection tube 1 and release saliva preservation fluid, a puncturing structure 31 is designed at the central axis of the cap 3.

By this embodiment, the flexible membrane 16 is located at the axial center of the collection tube 1, the puncture structure 31 is also located at the axial center of the cap 3, and when the cap 3 is connected to the collection tube 1, the puncture structure 31 will not shift the position of the flexible membrane 16 due to rotation or other position changes of the cap 3, so that the puncture structure 31 can puncture the flexible membrane 16 and release saliva preservation fluid.

In connection with fig. 2, an embodiment of the present utility model is proposed, in which the length of the second pipe wall 122 in the axial direction is smaller than that of the first pipe wall 121 in the axial direction.

Specifically, one end of the first tube wall 121 and one end of the second tube wall 122 are connected together to the bottom wall 11, the other end is open to the arrangement, and the first tube wall 121 is longer than the second tube wall 122.

It will be appreciated that the arrangement is such that the space between the first tube wall 121 and the second tube wall 122, i.e. the space of the saliva receiving chamber 13, extends out of a cylindrical chamber which is separated from the preserving fluid receiving chamber 14 by the flexible membrane 16.

Further, the arrangement is such that the volume of the saliva accommodating chamber 13 is larger than the volume of the preserving fluid accommodating chamber 14.

According to the embodiment, the optimal ratio of saliva to saliva preservation solution is 1:1, and the volume of the saliva accommodating cavity 13 is larger than that of the preservation solution accommodating cavity 14, so that a certain allowance space is arranged in the collecting pipe after collecting saliva and is adjacent to the cover, the saliva accommodating cavity 13 and the preservation solution accommodating cavity 14 are communicated, saliva can flow and mix with the saliva preservation solution, and the allowance space is convenient for subsequently extracting saliva samples in the collecting pipe 1.

In connection with fig. 2, an embodiment of the utility model is presented wherein the saliva collector 100 further comprises a cap receiving chamber 15 having a third opening, the cap receiving chamber 15 being provided at the end of the collection tube 1 remote from the first opening, the cap 3 being detachably connected to the cap receiving chamber 15, the cap receiving chamber 15 being adapted to receive the piercing structure 31.

By this embodiment, the cap 3 may be attached to the rear of the collection tube 1 when not in use, so that the collection tube 1 and the cap 3 do not need to be stored separately, facilitating the use of the entire saliva collector 100. Moreover, the cover accommodating cavity 15 is arranged so that the inside of the cover 3 and the puncture structure 31 are not exposed to the environment, thereby not only ensuring that the inside of the cover 3 is not easy to be polluted, so that a saliva sample is polluted when the cover 3 is used for plugging the collecting pipe 1, but also hiding the structure of the puncture structure 31, and preventing a user of the saliva collector 100 from being accidentally injured.

In particular, a cap receiving cavity 15 extends from one side of the collector tube 1, the wall of which cavity is provided with a screw thread or snap-fit arrangement, it being understood that the cap 3 is also provided with a corresponding screw thread or snap-fit arrangement, which allows the cap to be detachably connected to the cap receiving cavity 15. And the space of the cap receiving cavity 15 is also capable of receiving the piercing structure 31 of the cap 3.

In connection with fig. 2, the present utility model proposes an embodiment, in which the tube wall 12 further includes a third tube wall 123, and the third tube wall 123 is disposed on a side of the bottom wall 11 away from the first tube wall 121, and encloses a lid receiving cavity 15 with the bottom wall 11 and having a third opening. The cap 3 is detachably connected to the cap receiving cavity 15, the cap receiving cavity 15 being adapted to receive said piercing structure 31.

Specifically, the first tube wall 121 extends into the third tube wall 123, and a lid receiving cavity 15 is formed between the bottom wall 11 and the holding fluid receiving cavity 14 and the saliva receiving cavity 13, and the space of the lid receiving cavity 15 is sized to receive the piercing structure 31. The cover 3 may be coupled at the cover receiving cavity 15.

Through this embodiment, the first pipe wall 121 and the third pipe wall 123 are of the same structural design, so that the production and processing of the collecting pipe 1 are more convenient. The saliva receiving chamber 13, the preserving fluid receiving chamber 14 and the cap receiving chamber 15 have a generally cylindrical structure, so that the collecting tube 1 is more compact and simple in size. When using the collection tube 1, it is easier to handle and a plurality of collection tubes 1 are also easier to stack.

In connection with fig. 3, an embodiment of the present utility model is presented, wherein the cross section of the piercing structure 31 is star-shaped or cross-shaped.

Specifically, the maximum outer diameter of the puncture structure 31 is smaller than the inner diameter of the second tube wall 122, the puncture structure 31 is formed in a star shape or a cross shape by a plurality of ridges, and the outer diameter of one end, which is close to the collecting tube 1, is gradually reduced to form a tip. The height of the piercing structure 31 is such that the piercing structure 31 can extend into the holding fluid receiving chamber 14 to pierce the flexible membrane 16 when the cap 3 is connected to the collection tube 1.

With this embodiment, the cap 3, when attached to the collection tube 1, is able to puncture the flexible membrane 16 and release saliva preserving fluid. Meanwhile, after the star-shaped puncture structure 31 is arranged to enable the puncture structure 31 to extend into the preservation solution containing cavity 14, a certain channel is reserved for the saliva to flow through the saliva containing cavity 13, and the preservation solution containing cavity 14 cannot be blocked.

Referring to fig. 1, 2, 6 and 7, the present utility model proposes an embodiment in which the collection tube 1 is provided with a first screw portion 171 and a second screw portion 172. A first threaded portion 171 is provided at the end of the collection tube 1 adjacent to the opening for threaded connection to the cap 3. A second threaded portion 172 is provided at the end of the collection tube 1 remote from the opening for threaded connection to the cap 3. The first screw thread part 171 and the second screw thread part 172 are further provided with support parts for supporting and sealing the connection of the cap 3 and the collecting tube 1.

Specifically, the outer sides of the two ends of the first pipe wall 121 of the collecting pipe 1 are provided with external threads, and the support parts are arranged in the vicinity of the external threads. The inner side of the cap 3 is provided with an internal thread, and the cap 3 can be screwed to both sides of the collecting tube 1.

Further, a sealing ring is arranged inside the cover 3, so that the sealing performance of the cover 3 is improved.

Through this embodiment, lid 3 can threaded connection in collection pipe 1 both sides, realizes lid 3 and collection pipe 1's detachable connection, conveniently gathers, seals or uses saliva sample.

Referring to fig. 1, 6 and 7, the saliva collector 100 according to an embodiment of the present utility model includes a collector 2, and the collector 2 is detachably connected to the collecting tube 1 for guiding saliva into the saliva accommodating chamber 13.

Specifically, the collector 2 is of a funnel-shaped structure, a small opening section of the funnel is detachably connected to the collecting pipe 1, and a cavity of the collector 2 is communicated with an empty cavity of the collecting pipe 1, namely a cavity for collecting saliva samples.

Further, the small mouth end of the collector 2 is designed with internal threads, and can be connected with the collecting pipe 1 in a threaded manner. The large mouth end of the collector 2 is designed into a waist-shaped mouth, namely, two sides of a square are respectively connected with a semicircular shape.

With this embodiment, the threaded collector 2 is easier to use and disassemble, while the shape of the collector 2 more conforms to the shape of a person's mouth, so that the person being collected can use the saliva collector 100 more conveniently.

In connection with fig. 4 and 5, the utility model proposes an embodiment in which the collector 2 comprises a funnel 21, a baffle 22 and a connecting piece 23. The two sides of the baffle 22 are respectively connected with a funnel 21 and a connecting piece 23, and the funnel is used for guiding the collected saliva to flow to the direction of the baffle 22. The partition plate is also provided with an opening 221, and the opening 221 is used for passing saliva. The connection piece 23 is detachably connected to the collection tube 1 and the connection piece 23 communicates with a first opening and an aperture 221 for saliva to pass through the aperture 221 and the first opening in sequence into the saliva receiving chamber 13.

Specifically, the small mouth end of the funnel 21 is connected to the connector 23, the connector 23 is screwed onto the collection tube 1, and the cavity in the funnel 21 is communicated with the saliva accommodating chamber 13. A partition 22 is provided in the funnel 21 to separate the saliva receiving chamber 13 from the cavity in the funnel 21, and an opening 221 is provided in the partition 22.

By this embodiment, when collecting saliva, the collector 2 is connected to the collecting tube 1 by means of the connecting piece 23, the collector 2 is held by the mouth of the person to be collected, and saliva is guided into the collecting tube 1, wherein the partition 22 takes the function of a supporting structure and the function of isolation, and saliva flows into the saliva accommodating chamber 13 through the opening 221.

In connection with fig. 5, an embodiment of the present utility model is provided, in which the openings 221 are circular or annular, and the openings 221 are distributed annularly on the partition 22.

Specifically, the opening 221 may be in the shape of a sector ring or may be circular.

Further, the plurality of fan-shaped openings 221 form an approximately annular area, which is projected into the collection tube 1, the position of the openings 221 being located at the saliva receiving chamber 13. Similarly, a plurality of circular openings 221 can also form an approximately annular region.

With this embodiment, the aperture 221 directs saliva into the second chamber as it flows through the baffle 22, rather than first abutting the flexible membrane 16. Because saliva has certain viscosity, and the space in the collecting pipe 1 is relatively narrow. Saliva is firstly abutted against the flexible membrane 16 to be accumulated at the orifice of the collecting pipe 1 easily, so that air in the collecting pipe 1 is not easy to discharge, and subsequent saliva is not easy to flow in. The present embodiment can thus make it more convenient for the saliva collector 100 to collect saliva.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A saliva collector, the saliva collector comprising:

2. The saliva collector as recited in claim 1, wherein the collection tube comprises a tube wall, a bottom wall, and a flexible membrane;

3. The saliva collector as recited in claim 2, wherein the tube wall comprises a first tube wall and a second tube wall;

4. A saliva collector according to claim 3, wherein the first tube wall and the second tube wall are coaxially arranged.

5. A saliva collector according to claim 3, wherein the length of the second tube wall in the axial direction is less than the length of the first tube wall in the axial direction.

6. A saliva collector according to claim 3, wherein the tube wall further comprises a third tube wall, the third tube wall being provided on a side of the bottom wall remote from the first tube wall and enclosing with the bottom wall a lid receiving cavity having a third opening; the cover is detachably connected to the cover accommodating cavity, and the cover accommodating cavity is used for accommodating the puncture structure.

7. Saliva collector according to claim 1, wherein the cross-section of the piercing structure is star-shaped or cross-shaped.

8. The saliva collector as recited in claim 1, further comprising a cap receiving cavity having a third opening, the cap receiving cavity being provided at an end of the collection tube remote from the first opening, the cap being removably connected to the cap receiving cavity, the cap receiving cavity being adapted to receive the piercing structure.

9. A saliva collector according to any one of claims 1-8, wherein the collector comprises a funnel, a baffle and a connector;

10. The saliva collector as recited in claim 9, wherein the openings are circular or annular in shape and the openings are annularly distributed on the baffle.