CN120054670A

CN120054670A - Sampling device

Info

Publication number: CN120054670A
Application number: CN202411600990.2A
Authority: CN
Inventors: 廖冠乔; 游雅杰; 许芝旖
Original assignee: Everbright Technology Co ltd
Current assignee: Everbright Technology Co ltd
Priority date: 2023-11-29
Filing date: 2024-11-11
Publication date: 2025-05-30
Also published as: TW202521063A; TWI874010B; JP2025087606A

Abstract

The present invention relates to a sampling device, comprising: a container, provided with a containing chamber and provided with an opening and a liquid discharge port at two opposite ends, the opening, the liquid discharge port and the containing chamber are communicated with each other, an inner wall of the container is provided with a plurality of protrusions, the plurality of protrusions radially protrude into the containing chamber; a filter unit is arranged in the container and located between the containing chamber and the liquid discharge port; and a sampling unit, comprising a sampling body and a sampling piece made of a deformable absorption material, the sampling piece is arranged in the sampling body, the sampling piece can penetrate into the containing chamber and be radially squeezed by the plurality of protrusions.

Description

Sampling device

Technical Field

The invention relates to a sampling device which is used for collecting a sample.

Background

Many rapid screening products for infectious diseases today use oral or nasal specimens for screening, but the current specimen collection methods do not provide an accurate and effective specimen content quantification method. If quantitative analysis is required, an additional quantitative experiment must be performed after sample collection, but such a procedure is cumbersome and tends to reduce the importance of quantitative analysis because of insufficient convenience. Furthermore, there is a certain proportional relationship between the rapid screening result and the concentration of the analyte in the sample and the buffer solution in the rapid screening reagent, so that if the rapid screening result cannot be accurately quantified, errors of the data result are caused.

The prior art fast screening products are such as sample dripping type, crater type extrusion type, integral forming type and instrument extrusion type. However, the specimen dripping type is to drip the cassette with a dropper, and the force of squeezing the dropper is different, which cannot be quantified. The extrusion force cannot be controlled by the crater-type extrusion, and the quantitative effect is poor. The integrated saliva collecting sponge and the detection cartridge are integrated into one body and cannot be quantified. The saliva after the instrument extrusion type collection is put into the detecting instrument together with the cassette, and then the detecting instrument extrudes the saliva, however, the instrument extrusion type has the defects of high instrument cost, large volume and inapplicability to carry about.

Therefore, there is a need to provide a novel and advanced sampling device to solve the above-mentioned problems.

Disclosure of Invention

The invention mainly aims to provide a sampling device which is used for sampling and quantifying a sample.

The invention provides a sampling device which comprises a container, a filtering unit and a sampling unit, wherein the container is provided with a containing chamber, an opening and a liquid outlet are respectively arranged at two opposite end parts, the opening, the liquid outlet and the containing chamber are mutually communicated, a plurality of protruding parts are arranged on the inner wall of the container and radially protrude into the containing chamber, the filtering unit is arranged in the container and positioned between the containing chamber and the liquid outlet, the sampling unit comprises a sampling body and a sampling piece made of deformable absorbing materials, and the sampling piece is arranged on the sampling body, can penetrate into the containing chamber and is radially extruded by the plurality of protruding parts.

Preferably, the number of the plurality of protrusions is at least three, the chamber defines a central axis, and the plurality of protrusions are circumferentially disposed on the inner wall of the container around the central axis.

Preferably, the plurality of protrusions are circumferentially spaced apart from each other.

Preferably, in the above aspect, each of the protrusions has a radially protruding arcuate structure.

Preferably, the container includes a cylinder and a tube, the cylinder is sleeved on the tube, and the tube is integrally provided with the plurality of protruding parts.

Preferably, the tube body is pressed against the filter unit.

Preferably, the tube body is deformed integrally from outside to inside to protrude the plurality of protruding portions, and a plurality of concave portions are formed at positions corresponding to the plurality of protruding portions outside the tube body.

Preferably, the sampling unit further includes a sealing member disposed on the sampling body, the sealing member can seal the inner wall of the chamber in a ring manner to block the passage of fluid, and the sealing member can be axially clamped against a top end of the tube.

Preferably, a peripheral wall of the container is radially provided with a through hole adjacent to the opening, the through hole is communicated with the container, and the sealing member axially passes through the through hole.

Preferably, the number of the plurality of protruding portions is at least four, the chamber defines a central axis, and the plurality of protruding portions are circumferentially arranged on the inner wall of the container around the central axis; the plurality of protruding parts are circumferentially arranged at intervals; each protrusion is of a radial convex arc structure, the container comprises a bottom wall and a peripheral wall, one end of the peripheral wall is circumferentially connected with the bottom wall, the other end of the peripheral wall extends axially away from the bottom wall, the peripheral wall surrounds the container chamber and forms an opening at one end, the container defines a first height, the first height is a distance between the opening and the bottom wall, each protrusion extends axially to define a second height, the second height is smaller than the first height, the second height is smaller than a first height which is smaller than 0.6 times, the pipe body is pressed against the filter unit, a through hole is formed between the plurality of protrusions, the through hole is communicated with the liquid outlet and the container chamber, the through hole can be accessed by the sampling member, an outer diameter of the sampling member is smaller than a diameter of the opening and is larger than a minimum diameter of the through hole, the sampling member is respectively provided with a holding part and a connecting part, a cover part is arranged between the holding part and the connecting part in a radial direction, the second height is smaller than the first height, the pipe body is pressed against the first flange, the pipe body is arranged on the opening and the flange is arranged at a position which is smaller than a center line between the opening and the container, the flange is arranged between the opening and the flange, the flange is arranged at a position which is smaller than a center line of the opening and a position which is arranged between the opening and the flange, each of the protrusions is below the center line.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a first preferred embodiment of the present invention.

Fig. 2 is an exploded view of a first preferred embodiment of the present invention.

Fig. 3 is a top view of a first preferred embodiment of the present invention.

Fig. 4 is a perspective view of a tube body according to a first preferred embodiment of the present invention.

Fig. 5 to 7 are views illustrating a first preferred embodiment of the present invention.

Fig. 8 is a perspective view of a tube body according to a second preferred embodiment of the present invention.

Fig. 9 is a cross-sectional view of a second preferred embodiment of the present invention.

Wherein 1,1' is a sampling device, 10 ' is a container, 11 ' is a containing chamber, 12 ' is an opening, 13 ' is a liquid outlet, 14 ' is a cylinder, 15' is a pipe body, 16 ' is a concave part, 17 ' is a through hole, 18 ' is a bottom wall, 19 ' is a peripheral wall, 101 ' is a protruding part, 102 ' is a through hole, 20 ' is a filtering unit, 30 ' is a sampling unit, 31 ' is a sampling body, 32 ' is a sampling piece, 33 ' is a holding part, 34 ' is a connecting part, 341 ' is a first flange, 342 ' is a second flange, 35 ' is a cover part, 40 ' is a sealing piece, A is a central axis, H1 is a first height H2 is a second height, D1 is an outer diameter size, D2 is a caliber size, and D3 is a minimum aperture size.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The following examples are given to illustrate possible embodiments of the present invention, but are not intended to limit the scope of the invention, and the terms "a" or "an" as used herein are not intended to limit the number of the embodiments, but rather the number of the embodiments is also "a plurality" as required, and the scope of the embodiments is defined by the claims.

Referring to fig. 1 to 7, a first preferred embodiment of the present invention is shown, and a sampling device 1 of the present invention includes a container 10, a filtering unit 20 and a sampling unit 30.

The container 10 is provided with a chamber 11, and is provided with an opening 12 and a liquid outlet 13 at two opposite ends, the opening 12, the liquid outlet 13 and the chamber 11 are mutually communicated, a plurality of protruding parts 101 are arranged on an inner wall of the container 10, the plurality of protruding parts 101 radially protrude into the chamber 11, the filter unit 20 is arranged in the container 10 and is positioned between the chamber 11 and the liquid outlet 13, the filter unit 20 is filter paper, the sampling unit 30 comprises a sampling body 31 and a sampling member 32 made of deformable absorbing materials, the sampling member 32 is arranged on the sampling body 31, and the sampling member 32 can penetrate into the chamber 11 and be radially extruded by the plurality of protruding parts 101 to collect a sample. The sampling member 32 is made of a material such as a sponge, a swab, or other liquid-absorbing material, and the sampling member 32 can absorb or adhere to a sample (such as saliva, or other liquid sample).

Therefore, the sample on the sampling member 32 can be extruded by the plurality of protrusions 101 to flow out, and the volume of the sampling member 32 is fixed by the extrusion of the plurality of protrusions 101, so as to achieve the effects of collecting the sample and quantifying, and in addition, the filtering unit 20 is used for filtering impurities (such as food residues or other impurities) in the sample.

The liquid outlet 13 allows the sample to flow out.

The number of the plurality of protrusions 101 is at least three, the chamber 11 defines a central axis a, the plurality of protrusions 101 are circumferentially disposed around the central axis a on the inner wall of the container 10, in this embodiment, the number of the plurality of protrusions 101 is at least four, and in addition, the plurality of protrusions 101 are circumferentially spaced apart to uniformly press the sampling member 32.

Each protrusion 101 has a radially protruding arc structure, specifically, each protrusion 101 has an arc guiding surface at its top end, so that the sampling member 32 can smoothly pass between the protrusions 101 to be pressed, and the sampling member 32 is not damaged when it moves and rotates axially relative to the protrusions 101.

A through hole 102 is formed between the plurality of protruding parts 101, the through hole 102 is communicated with the liquid outlet 13 and the chamber 11, the through hole 102 can be used for the sampling piece 32 to be introduced, the outer diameter D1 of the sampling piece 32 is smaller than the aperture D2 of the opening 12 and larger than the minimum aperture D3 of the through hole 102, the sampling piece 32 can be smoothly introduced into the opening 12 and is not extruded from the opening 12 until penetrating into the through hole 102, so that a sample flows out from the liquid outlet 13, and the sample is prevented from splashing out of the opening 12.

The container 10 includes a cylinder 14 and a tube 15, the cylinder 14 is sleeved with the tube 15, and the tube 15 is integrally provided with the plurality of protrusions 101. The cylinder 14 and the tube 15 may be bonded (e.g., welded, adhered, or fastened) to each other to facilitate processing.

The tube 15 is pressed (pushed down) against the filter unit 20 so that the filter unit 20 can be firmly positioned.

The container 10 includes a bottom wall 18 and a peripheral wall 19, one end of the peripheral wall 19 is circumferentially connected to the bottom wall 18, the other end extends axially away from the bottom wall 18, the peripheral wall 19 encloses the chamber 11 and forms the opening 12 at one end, the container 10 defines a first height H1, the first height H1 is a distance between the opening 12 and the bottom wall 18, each protrusion 101 extends axially to define a second height H2, the second height H2 is smaller than the first height H1, and the second height H2 is smaller than the first height H1 which is 0.6 times. Preferably, the container 10 defines a centerline extending radially through the center, each of the protrusions 101 being below the centerline. Therefore, the sampling unit 30 is required to penetrate into the chamber 11 to a certain depth and then be pressed by the plurality of protrusions 101, so that the sample 32 is prevented from flowing out of the opening 12 and splashing to be attached to the hand of the user after being pressed.

The sampling unit 30 further includes a sealing member 40, the sealing member 40 is disposed on the sampling body 31, the sealing member 40 can seal the inner wall of the chamber 11 in a ring manner to block the fluid from passing through, and the sealing member 40 is an O-ring. Therefore, the airtight effect is achieved in the chamber 11, and the sealing member 40 can press the air in the chamber 11 when the chamber 11 is pushed downward, so as to prevent the sample from flowing backward and adhering to the hands of the user.

The opposite two ends of the sampling body 31 are respectively provided with a holding part 33 and a connecting part 34, a cover part 35 is radially and convexly arranged between the holding part 33 and the connecting part 34 of the sampling body 31, the sealing element 40 is arranged on the sampling body 31 and positioned below the cover part 35, the cover part 35 covers the opening 12 to achieve multi-layer protection, when the sampling element 32 is extruded out of the sample by the plurality of protruding parts 101 through the cover part 35 and the sealing element 40, the sample can be blocked by the cover part 35 and can not be ejected out of the opening 12, and the holding part 33 can be held by a hand to facilitate stable insertion of the sampling element 32 into the accommodating chamber 11 through the opening 12. In addition, the outer diameter of the cover 35 is smaller than or equal to the caliber D2 of the opening 12, the cover 35 passes through the opening 12 to the chamber 11, and the cover 35 guides the sampling unit 30 to move stably and axially in the chamber 11 so as to prevent the sampling unit from deflecting, so that the plurality of protrusions 101 press the volume of the sampling member 32 to be fixed.

A peripheral wall 19 of the container 10 is radially provided with a through hole 17 adjacent to the opening 12, the through hole 17 is communicated with the container 11, the sealing element 40 axially passes through the through hole 17, so that the sealing element 40 can achieve an airtight effect in the container 11 after passing through the through hole 17 to the lower part of the through hole 17, the sealing element 40 can be tightly sealed with the container 10, and smoothly passes through the opening 12 adjacent to the opening 12 into the container 11.

The sealing member 40 can be axially clamped against a top end of the tube 15, as shown in fig. 7, so that a downward pushing distance of the sealing member 40 in the chamber 11 can be limited, and the sealing member 40 can squeeze a fixed volume of the sample out of the liquid outlet 13 during the pushing process, so as to achieve an accurate quantitative effect.

The assembling portion 34 is i-shaped, the assembling portion 34 includes a first flange 341 and a second flange 342 spaced apart from each other, and the sampling member 32 is disposed between the first flange 341 and the second flange 342, so that the sampling member 32 is limited between the first flange 341 and the second flange 342.

Referring to fig. 8 to 9, a second preferred embodiment of the present invention is shown, wherein the tube body 15' of the sampling device 1' integrally deforms from outside to inside to protrude the plurality of protruding portions 101, and a plurality of concave portions 16 are formed at positions of the tube body 15' corresponding to the plurality of protruding portions 101. Therefore, a plurality of spaces are formed between the pipe body 15' and the cylinder 14 corresponding to the plurality of concave parts 16, so that the contact area between the pipe body 15' and the cylinder 14 is reduced, the combination of the pipe body 15' and the cylinder 14 is facilitated, and the advantages of saving materials and reducing weight are achieved.

It should be noted that the above embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present invention.

Claims

1. A sampling and inspection device, characterized in that it comprises:

A container is provided with a containing chamber and an opening and a liquid discharge port are respectively provided at two opposite ends, the opening, the liquid discharge port and the containing chamber are communicated with each other, and an inner wall of the container is provided with a plurality of protrusions, and the plurality of protrusions radially protrude into the containing chamber;

a filter unit disposed in the container between the chamber and the liquid discharge port; and

A sampling unit includes a sampling body and a sampling piece made of a deformable absorbing material. The sampling piece is arranged on the sampling body and can penetrate into the chamber and be radially squeezed by the plurality of protrusions.

2. The sampling and inspection device according to claim 1 is characterized in that the number of the plurality of protrusions is at least three, the chamber defines a central axis, and the plurality of protrusions are circumferentially arranged on the inner wall of the container around the central axis.

3. The sampling and inspection device according to claim 2 is characterized in that the plurality of protrusions are arranged at intervals in the circumferential direction.

4. The sampling and inspection device according to claim 1 is characterized in that each of the protrusions is a radially protruding arc-convex structure.

5. The sampling and inspection device according to claim 1 is characterized in that the container comprises a cylinder and a tube, the cylinder is sleeved on the tube, and the tube is integrally provided with the plurality of protrusions.

6 . The sampling and inspection device according to claim 5 , wherein the tube body is pressed against the filter unit.

7. The sampling and inspection device according to claim 5 is characterized in that the tube body is integrally deformed from the outside to the inside to protrude the plurality of protrusions, and a plurality of recesses are formed on the outside of the tube body corresponding to the plurality of protrusions.

8. The sampling and inspection device according to claim 5 is characterized in that the sampling and inspection unit further includes a sealing member, which is arranged on the sampling and inspection body, and the sealing member can be sealed against the inner wall of the chamber to block the passage of fluid, and the sealing member can be axially clamped against a top end of the tube body.

9. The sampling and inspection device according to claim 8 is characterized in that a through hole is radially penetrated through a peripheral wall of the container adjacent to the opening, the through hole is connected to the chamber, and the sealing member passes axially through the through hole.

10. The sampling and inspection device according to claim 9 is characterized in that the number of the plurality of protrusions is at least four, the chamber defines a central axis, and the plurality of protrusions are circumferentially arranged around the central axis on the inner wall of the container; the plurality of protrusions are circumferentially spaced; each of the protrusions is a radially protruding arc-convex structure; the container includes a bottom wall and a peripheral wall, one end of the peripheral wall is circumferentially connected to the bottom wall, and the other end extends axially in a direction away from the bottom wall, the peripheral wall surrounds the chamber and forms the opening at one end, the container defines a first height, the first height is the distance between the opening and the bottom wall, each of the protrusions extends axially to define a second height, the second height is less than the first height; the second height is less than 0.6 times the first height; the tube body presses against the filter unit; a plurality of protrusions form a through hole, the through hole connects the discharge port and the containing chamber, the through hole can be used for the sampling piece to pass through, an outer diameter of the sampling piece is smaller than a diameter of the opening and larger than a minimum aperture of the through hole; the sampling body is provided with a grip and a connecting portion at two opposite ends, the sampling body is provided with a cover portion radially protruding between the grip and the connecting portion, the sealing member is provided on the sampling body and is located below the cover portion, and the cover portion covers the opening; the outer diameter of the cover portion is smaller than or equal to the diameter of the opening, and the cover portion passes through the opening to the containing chamber; the connecting portion is I-shaped, and the connecting portion includes a first flange and a second flange spaced apart from each other, and the sampling piece is provided between the first flange and the second flange; the container defines a center line extending radially through the center, and each of the protrusions is lower than the center line.