CN112763270B

CN112763270B - Shell structure for sampling device and portable sampling device

Info

Publication number: CN112763270B
Application number: CN202011604081.8A
Authority: CN
Inventors: 席秋子; 邱华星
Original assignee: Suzhou Dingshi Medical Technology Co ltd
Current assignee: Suzhou Dingshi Medical Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-12-09
Anticipated expiration: 2040-12-29
Also published as: CN112763270A

Abstract

The invention provides a shell structure for a sampling device, which comprises a shell for forming a coating structure of the sampling device, wherein the shell is hollow inside and is opened at the top end of the shell to form a first cavity; the shell extends from the bottom surface to the first cavity to form a second cavity, and the bottom part of the first cavity is sunken inwards to form a third cavity; the second cavity is used for connecting a straw in the sampling device so as to suck sample liquid; the third cavity is used for receiving a buffer liquid cup in the sampling device. The invention also provides a portable sampling device. The suction tube and the buffer liquid cup in the sampling device are integrated in the shell, so that the sampling device is convenient to carry.

Description

Shell structure for sampling device and portable sampling device

Technical Field

The invention belongs to the field of fluorescence immunoassay, and particularly relates to a shell structure for a sampling device, and further particularly designs a portable sampling device.

Background

In the field of medical devices, a number of items for use in fluoroimmunoassay are well known. However, the inventors found that the conventional fluoroimmunoassay method has at least the following problems in collecting a liquid:

firstly, in the traditional collection process, a pipette is required to be installed on a pipette gun to collect sample liquid, then a pipette head is used to puncture a buffer liquid cup to collect buffer liquid, the sample liquid and the buffer liquid are mixed to carry out immunoassay, a plurality of liquids are required to be collected one by one in the collection process, the time required for collection is longer, and the fluorescence immunoassay efficiency is limited.

In view of the above, it is necessary to develop a housing structure for a sampling device to solve the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention mainly aims to provide the shell structure for the sampling device, and the shell structure is convenient for integrating the sampling device and carrying by reserving a containing space for accommodating the suction tube and the buffer liquid cup on the upper shell.

To achieve the above objects and other advantages in accordance with the present invention, there is provided a housing structure for a sampling device, comprising a housing for forming a covering structure for the sampling device; the shell is hollow inside and is opened at the top end of the shell to form a first cavity;

the shell extends from the bottom surface to the first cavity to form a second cavity, and the bottom part of the first cavity is inwards sunken to form a third cavity;

wherein the second cavity is used for connecting a straw in the sampling device;

the third cavity is used for receiving a buffer liquid cup in the sampling device.

Preferably, a bayonet is arranged on the inner wall of the second cavity and corresponds to a buckle arranged on the outer wall of the suction pipe.

Preferably, the bayonets are arranged on the inner walls of two sides of the corresponding second cavity and penetrate to the outer side of the shell.

Preferably, an annular raised skirt is provided on the outer edge of the housing.

On the other hand, another objective of the present invention is to provide a portable sampling device, which integrates a pipette head with a pipette gun, so as to facilitate the simultaneous absorption of sample liquid and buffer solution, simplify the operation steps, facilitate the use of personnel, and improve the analysis efficiency.

In order to achieve the above object according to the present invention, there is also provided a portable sampling device including: the shell structure as described above;

a straw detachably connected to the housing;

a buffer cup; and

a drainage member located within the first cavity;

wherein the drainage member comprises a drainage tube body; the drainage tube main body extends outwards to form a branch tube and a puncture part to correspond to the suction tube and the buffer liquid cup;

the branch tube and the puncturing part may be connected with the suction tube and the buffer cup to form a liquid passage, so that the liquid is guided into the drainage tube main body through the liquid passage.

Preferably, a sliding groove extending in the vertical direction is formed in the inner side wall of the first cavity, and a sliding block corresponding to the sliding groove is arranged on the outer wall of the drainage tube main body;

the drainage piece is limited by the sliding groove in the sliding direction, so that the drainage piece can reciprocate in the vertical direction.

Preferably, the drainage tube body is hollow inside to form a liquid mixing cavity for storing liquid;

the branch pipe is provided with a sample liquid channel from the bottom and extends into the liquid mixing cavity;

the puncture part is provided with a buffer solution channel from the bottom and extends into the liquid mixing cavity, and the bottom of the puncture part is provided with a protrusion block which extends downwards to form a puncture sharp head for puncturing an aluminum film.

Preferably, the bottom of the puncture part is provided with connecting ribs which are distributed in a radial shape;

the connecting ribs are intersected to form a central column positioned in the axis direction of the center of the puncturing part, and the puncturing pointed end is arranged on the central column.

Preferably, the puncturing part punctures an aluminum film coated on the buffer liquid cup;

the buffer cup is hollow inside to form a liquid containing cavity for containing buffer liquid, the liquid containing cavity is formed in the top of the buffer cup, and when the puncture part extends into the liquid containing cavity, the buffer cup is connected with the puncture part in a sealing mode.

Preferably, the bottom of the liquid containing cavity is conical, and the shape of the part of the connecting rib extending outwards from the bottom of the puncture part corresponds to the shape of the bottom of the liquid containing cavity.

Compared with the prior art, the invention has the beneficial effects that:

according to the shell structure for the sampling device, the accommodating space for receiving the suction pipe and the buffer liquid cup is reserved on the upper shell, so that the sampling device is integrated conveniently and is portable, the situation that the sampling device is inconvenient to carry outdoors or in special scenes is met, and the shell structure is simple in structure and convenient to use.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to make the technical solutions of the present invention practical in accordance with the contents of the specification, the following detailed description is given of preferred embodiments of the present invention with reference to the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:

FIG. 1 is a cross-sectional view of a housing of the present invention in a preferred embodiment;

FIG. 2 is a schematic perspective view of a sampling device according to a preferred embodiment of the present invention;

FIG. 3 is an exploded view of a sampling device in accordance with a preferred embodiment of the present invention;

FIG. 4 is a cross-sectional first view of a sampling device in a preferred embodiment of the present invention;

FIG. 5 is a second cross-sectional view of a sampling device in a preferred embodiment of the present invention;

FIG. 6 is a perspective view of a drainage member in accordance with a preferred embodiment of the present invention;

FIG. 7 is a bottom view of the drainage member in a preferred embodiment of the invention;

FIG. 8 is a cross-sectional view of a buffer cup in a preferred embodiment of the invention.

Shown in the figure:

1. a drainage member;

11. a drainage tube main body; 111. a liquid mixing cavity; 112. a slider;

12. a branch pipe; 121. a sample liquid channel;

13. a puncture section;

131. piercing the tip;

132. connecting ribs;

133. connecting blocks;

134. an extension block;

135. an isolation chamber;

136. a buffer channel;

2. a housing;

21. a first cavity; 211. a chute;

23. a second cavity; 231. a bayonet;

24. a third cavity;

3. a straw;

31. a straw body; 311. a linking end; 312. a liquid inlet end;

32. buckling;

4. a buffer cup;

41. a liquid cup body; 411. a liquid containing cavity;

42. and (3) an aluminum film.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, wherein like reference characters designate like parts throughout the several views, and wherein the described embodiments are illustrative only of a few embodiments, but not all embodiments, of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and generally are not intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

According to the technical solution of the present invention, as shown with reference to fig. 2 and 3, a portable sampling device comprises a housing 2 for forming a covering structure of the sampling device; wherein the housing 2 is hollow inside and open at its top end to form a first cavity 21;

referring to fig. 1, the housing 2 extends from the bottom surface toward the first cavity 21 to form a second cavity 23, and a bottom portion of the first cavity 21 is recessed to form a third cavity 24;

the second cavity 23 is used for connecting a suction tube 3 in the sampling device so as to suck sample liquid;

the third cavity 24 is used for receiving a buffer liquid cup 4 in the sampling device, and a buffer liquid is received in the buffer liquid cup 4;

a drainage member 1 disposed within the first cavity 21; the shell 2 is reserved with an accommodating space for accommodating the drainage piece 1, the suction pipe 3 and the buffer liquid cup 4, so that the sampling device is integrated conveniently and is convenient to carry, and the situation that the sampling device is inconvenient to carry outdoors or in special scenes is solved;

in a preferred embodiment, the drainage member 1 comprises a drainage tube body 11, the interior of which is hollow to form a liquid mixing cavity 111;

a branch pipe 12 provided at the bottom of the draft tube body 11; and

a puncturing part 13 located on the same side of the drain tube body 11 near the branch tube 12;

the branch pipe 12 is provided with a sample liquid channel 121 from the bottom thereof and extends into the liquid mixing cavity 111, and sample liquid is sucked into the liquid mixing cavity 111 through the branch pipe 12;

the puncture part 13 is provided with a buffer liquid channel 136 from the bottom thereof and extends into the liquid mixing cavity 111, and the bottom of the puncture part 13 is provided with a protrusion block which extends downwards to form a puncture sharp head 131 for puncturing an aluminum film;

specifically, referring to fig. 4 and 5, the drainage member 1 is driven by an external force, so that the drainage member 1 moves to the branch pipe 12 to be connected with the straw 3, and meanwhile, the puncture part 13 extends into the buffer cup 4, so that the branch pipe 12 and the straw 3 form a liquid channel of sample liquid, a liquid channel of buffer liquid is formed in the puncture part 13, and finally, the two liquids enter the liquid mixing cavity 111 to be mixed.

Referring to fig. 8, the puncturing part 13 punctures the aluminum film 42 covering the buffer cup 4, the buffer cup 4 is hollow to form a liquid containing cavity 411 for containing a buffer liquid, the liquid containing cavity 411 forms an opening at the top of the buffer cup 4, when the connecting block 133 extends into the liquid containing cavity 411 from the opening, the opening is hermetically connected with the outer edge of the connecting block 133, and when continuous pressing and space limitation occur, the buffer liquid in the liquid containing cavity 411 is pressed into the liquid mixing cavity 111 from the buffer liquid channel 136.

The buffer solution and the sample solution are mixed in the liquid mixing cavity 111 at the same time to form a solution required for fluorescence immunoassay, and the puncture part 13 is integrated on the drainage piece 1, so that the problem that a pipetting gun and a pipetting gun head need to be carried at the same time is solved, and the carrying convenience is improved; meanwhile, the puncturing part 13 and the branch pipe 12 can simultaneously collect two liquids and mix the two liquids in the liquid mixing cavity 111, so that the operation steps are simplified, and the analysis efficiency is improved.

The suction pipe 3 is detachably connected with the shell 2; specifically, a bayonet 231 is formed in the inner wall of the second cavity 23, the bayonet 231 corresponds to a buckle 32 arranged on the outer wall of the straw 3, the buckle 32 is arranged at one end of the straw 3 close to a connection end 311, the connection end 311 extends into the first cavity 21 and is hermetically connected with the branch pipe 12, and a liquid inlet end 312 at the other end of the straw 3 extends into a sample liquid container to suck sample liquid.

The bayonet 231 is disposed on the inner walls of the two sides corresponding to the second cavity 23 and penetrates the outer side of the housing 2, and the suction pipe 3 is disconnected from the housing 2 by pushing the snap 32 from the through hole of the outer side of the housing 2.

A sliding groove 211 extending along the vertical direction is formed in the inner side wall of the first cavity 21, and a sliding block 112 corresponding to the sliding groove 211 is arranged on the outer wall of the drainage tube main body 11; the drainage piece 1 is limited by the sliding groove 211 to slide in a direction so as to reciprocate along the vertical direction; furthermore, the outer edge of the shell 2 is provided with an annular raised skirt edge, so that a force application point is provided for an operator, and the drainage piece 1 can be conveniently driven to move relative to the shell.

As shown in fig. 6 and 7, the puncturing part 13 includes a connecting block 133, the extending direction of the connecting block 133 is parallel to the extending direction of the branch pipe 12, when the drainage member 1 is driven, the puncturing part 13 and the branch pipe 12 can move in the same direction to facilitate both to simultaneously extend into two containers containing different liquids, so as to suck the two liquids for mixing;

an extension block 134 is integrally connected to the top of the connection block 133, the extension block 134 is extended and combined to the side wall of the drainage tube body 11, and the connection block 133 and the extension block 134 are combined to form the main structure of the puncturing part 13.

The buffer channel 136 in the connection block 133 penetrates the connection block 133 up and down to form a hollow part and is communicated to the buffer channel 136 in the extension block 134;

connecting ribs 132 distributed in a radial manner are arranged in the hollow portion of the connecting block 133, so that a plurality of isolation cavities 135 are formed between the connecting ribs 132 and the hollow inner wall of the connecting block 133, and the isolation cavities 135 are communicated with the buffer liquid channel 136 in the extending block 134.

The connecting ribs 132 are intersected to form a central column located in the axial direction of the connecting block 133, the puncturing pointed end 131 is arranged on the central column, the aluminum film 42 is punctured through the puncturing pointed end 131, the aluminum film 42 is uniformly punctured by the puncturing part 13, the situation that the puncturing state is affected by overlong local aluminum film 42 is avoided, or part of the aluminum film 42 stretches into a buffer solution when the aluminum film is overlong, so that liquid is polluted, and the mixed solution is invalid.

The puncturing pointed end 131 is circular, the shape and the size of the puncturing pointed end 131 are the same or larger than the cross section of the central column, so that the puncturing pointed end 131 directly forms a whole with the connecting rib 132, after the puncturing pointed end 131 punctures the aluminum film 42, the joint of the puncturing pointed end 131 and the connecting rib 132 is pressed on the aluminum film 42, the aluminum film 42 is easily stretched due to high pressure, a stepped structure formed by the puncturing pointed end 131 and the central column is avoided, when the puncturing pointed end 131 punctures the aluminum film 42, the central column is in contact with the aluminum film 42, and the central column is difficult to be separated from the aluminum film 42 due to the fact that the contact area is increased and the pressure is reduced.

In a preferred embodiment, the opening is shaped and sized to conform to the outer edge of the connecting piece 133, and the connecting piece 133 extends into the opening to form a sealed connection.

In another preferred embodiment, the opening is smaller than the outer edge of the connecting block 133; liquid cup body 41 of buffer cup 4 is made by silica gel, works as connecting block 133 stretches into when flourishing liquid chamber 411, connecting block 133 struts the elastic opening, and liquid cup body 41 has certain elasticity and variability, so that the opening wraps up on connecting block 133 for the leakproofness is better.

Referring to fig. 5, the bottom of the liquid containing cavity 411 is tapered, the connecting rib 132 extends outwards from the bottom of the connecting block 133, the shape of the extending connecting rib 132 corresponds to the shape of the bottom of the liquid containing cavity 411, the contact area of the extending connecting rib 132 and the aluminum film 42 is reduced, and the pressure is increased, so that the connecting rib 132 can prop open the aluminum film 42.

The quantity of splice bar 132 is three, through splice bar 132 will hollow space in the connecting block 133 separates to form threely keep apart the chamber 135, keep apart the chamber 135 respectively with buffer solution passageway 136 intercommunication in the extension piece 134, through splice bar 132 struts the isolation with aluminium membrane 42, in order to guarantee buffer solution cup 4 normally impresses to buffer solution passageway 136 in.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any equivalent changes, modifications and evolutions made to the above embodiments according to the substantial technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A portable sampling device, comprising:

a shell structure comprising a shell (2) for forming a coating structure of the sampling device,

the shell (2) is hollow inside and is opened at the top end thereof to form a first cavity (21);

the shell (2) extends from the bottom surface to the first cavity (21) to form a second cavity (23), and the bottom part of the first cavity (21) is inwards recessed to form a third cavity (24);

wherein the second cavity (23) is used for connecting a straw (3) in the sampling device;

the third cavity (24) is used for receiving a buffer cup (4) in the sampling device;

the suction pipe (3) is detachably connected to the shell (2), the suction pipe (3) is provided with a joint end (311), and the joint end (311) extends into the first cavity (21);

a buffer cup (4); and

a drainage member (1) located within the first cavity (21);

wherein the drainage member (1) comprises a drainage tube body (11); the drainage tube body (11) extends outwards to form a branch tube (12) and a puncture part (13) to correspond to the suction tube (3) and the buffer liquid cup (4);

the branch pipe (12) and the puncture part (13) can be correspondingly connected with the suction pipe (3) and the buffer cup (4) to form a liquid channel, so that the liquid is guided into the drainage pipe body (11) through the liquid channel.

2. The sampling device according to claim 1, characterized in that a bayonet (231) is provided on the inner wall of the second cavity (23), and the bayonet (231) corresponds to the snap (32) provided on the outer wall of the pipette (3).

3. The sampling device according to claim 2, characterized in that said bayonet (231) is provided on the inner wall of both sides corresponding to said second cavity (23) and penetrates outside said housing (2).

4. The sampling device according to claim 3, characterized in that the outer edge of the housing (2) is provided with an annular projecting skirt.

5. The sampling device according to claim 4, wherein the inner side wall of the first cavity (21) is provided with a sliding groove (211) extending along the vertical direction, and the outer wall of the drainage tube main body (11) is provided with a sliding block (112) corresponding to the sliding groove (211);

the drainage piece (1) is limited by the sliding groove (211) in the sliding direction and is enabled to move back and forth in the vertical direction.

6. The sampling device according to claim 5, characterized in that the drainage tube body (11) is hollow inside to form a liquid mixing chamber (111) for storing liquid;

the branch pipe (12) is provided with a sample liquid channel (121) from the bottom and extends into the liquid mixing cavity (111);

the puncture part (13) is provided with a buffer solution channel (136) from the bottom and extends into the liquid mixing cavity (111), and the bottom of the puncture part (13) is provided with a protruding block which extends downwards to form a puncture sharp head (131) for puncturing an aluminum film.

7. The sampling device according to claim 6, characterized in that the bottom of the piercing section (13) is provided with radially distributed connection ribs (132);

the connecting ribs (132) are intersected to form a central column positioned in the central axis direction of the puncture part (13), and the puncture sharp head (131) is arranged on the central column.

8. The sampling device according to claim 7, characterized in that the piercing section (13) pierces an aluminium membrane (42) covering the buffer cup (4);

the buffer cup (4) is hollow inside to form a liquid containing cavity (411) for containing buffer liquid, the liquid containing cavity (411) is formed in the top of the buffer cup (4) to form an opening, and when the puncture part (13) extends into the liquid containing cavity (411), the buffer cup (4) is connected with the puncture part (13) in a sealing mode.

9. The sampling device according to claim 8, characterized in that the bottom of said chamber (411) is tapered, and the shape of the portion of said rib (132) projecting outwards from the bottom of said piercing part (13) corresponds to the shape of the bottom of said chamber (411).