WO2021254514A1

WO2021254514A1 - Biochemical test paper tube

Info

Publication number: WO2021254514A1
Application number: PCT/CN2021/101113
Authority: WO
Inventors: 喻晴; 魏鹏海; 周中人
Original assignee: 上海快灵生物科技有限公司; 上海妙灵生物工程有限公司; 上海金标生物科技有限公司
Priority date: 2020-06-19
Filing date: 2021-06-19
Publication date: 2021-12-23
Also published as: CN112916068A; CN214716765U

Abstract

A biochemical test paper tube (100), comprising a tube portion (110) and a cover portion (120). The tube portion (110) comprises a solution chamber (111), wherein the top end face of the solution chamber (111) is provided with a sealing platform (113), the sealing platform (113) is entirely arranged around the solution chamber (111), and when the cover portion (120) closes the tube portion (110), the sealing platform (113) is a certain distance from the bottom of the cover portion (120); and a test paper chamber (112) for accommodating and placing biochemical test paper. The biochemical test paper tube has the advantages that a reaction solution is pre-placed in the solution chamber (111), and the solution chamber (111) is sealed by using a sealing film (114), and there is no need for detection personnel to prepare the solution and transfer the solution, thereby reducing the operation steps; and when in use, the sealing film (114) is destroyed, and a sample to be detected is placed in the solution chamber (111), so that rapid detection can be performed, thereby improving the detection efficiency.

Description

Biochemical test paper tube

Technical field

The invention relates to the technical field of rapid detection devices, in particular to a biochemical test paper tube.

Background technique

When performing in vitro diagnosis or in vitro testing, in order to obtain qualitative results quickly, a combination of chromatography test paper and test tube is usually used as a rapid diagnostic tool or rapid detection tool. Generally speaking, the samples for diagnosis or testing usually have some dangers, such as certain toxicity and infectiousness. The used test tubes will be treated as medical waste.

However, the test tube in the related art has some defects. For example, in the detection, the preparation of the reaction solution, sampling and other operations are required, which is time-consuming and labor-intensive. In addition, the tube part and cover part of some test tubes are of separate design, and the cover part is easy to fall off from the tube part, causing the substances and solutions in the tube part to flow outwards, polluting the environment and endangering the lives of workers. In addition, the tube part and the cover part of some test tubes are designed as one-piece, but the sealing performance and connection firmness are not good. Under the action of external force, the cover part is easier to separate from the tube part, which will also cause the substance in the tube part, The solution flows outward.

At present, in the related technology, there is a situation that the reaction solution is prepared and used now, which leads to the problems of multiple detection steps and low detection efficiency, and no effective solution has been proposed.

Summary of the invention

The purpose of the present invention is to provide a biochemical test paper tube aiming at the deficiencies in the prior art.

In order to achieve the above objectives, the technical solutions adopted by the present invention are:

The invention provides a biochemical test paper tube, comprising a tube part and a cover part, the tube part comprising:

A solution cavity, a sealing platform is arranged on the top end surface of the solution cavity, the sealing platform is arranged all around the solution cavity, and the inner diameter of the nozzle is the maximum inner diameter of the pipe;

Test paper cavity, used to hold biochemical test paper;

When the cover part closes the tube part, the sealing platform and the top of the test paper cavity have a certain distance from the bottom of the cover part.

In one of the embodiments, the top end surface of the test paper cavity is lower than the top end surface of the tube portion.

In one of the embodiments, the cover part and the nozzle of the tube part are inserted into the fitting.

In one of the embodiments, there is a certain separation distance between the outer edge of the sealing platform and the tube wall of the tube portion, and the sealing platform is higher than the bottom surface of the tube wall and has a certain vertical distance.

In one of the embodiments, the horizontal distance between the sealing platform and the tube wall of the tube portion is at least 0.5 mm, and the vertical distance between the sealing platform and the tube wall is at least 0.5 mm.

In one of the embodiments, the width of the sealing platform is at least 1 mm.

In one of the embodiments, when the cover part closes the tube part, the distance between the sealing platform and the bottom of the cover part is at least 1 mm.

In one of the embodiments, the tube part further includes:

The sealing film is connected with the sealing platform to seal the solution cavity.

In one of the embodiments, the cover part of the biochemical test paper tube is connected to the tube part.

In one of the embodiments, the biochemical test paper tube further includes a connecting part, and the tube part and the cover part are connected through the connecting part.

In one of the embodiments, the cover includes:

A cavity is formed by the inner surface of the cover portion bulging outward.

In one of the embodiments, the longitudinal section of the cavity is trapezoidal, circular arc or triangular.

In one of the embodiments, the tube part further includes:

A counterbore unit, the counterbore unit being arranged on the top of the nozzle of the pipe part;

Wherein, when the cover part closes the tube part, the cover part cooperates with the counterbore unit.

In one of the embodiments, the longitudinal section of the counterbore unit is stepped.

In one of the embodiments, the counterbore unit includes:

A first counterbore, the first counterbore being arranged at the top of the nozzle of the pipe part;

A second counterbore, the second counterbore being arranged on the lower side of the first counterbore;

Wherein, the width of the cross section of the first counterbore is greater than the width of the cross section of the second counterbore.

In one of the embodiments, the tube part further includes:

The cover opening part is arranged in the first counterbore, the first end of the cover opening part is located at the inner wall of the first counterbore, and the second end of the cover opening part is located at the first counterbore. The outer wall of a counterbore or is located between the outer wall of the first counterbore and the inner wall of the first counterbore.

In one of the embodiments, the sealing film is arranged in the second counterbore and seals the solution cavity.

In one of the embodiments, the cover further includes:

A chamfering part, the chamfering part is arranged on the outer wall of the cover;

Wherein, when the cover part closes the tube part, the chamfering member is matched with the counterbore unit.

In one of the embodiments, the tube part further includes:

A first fitting part, the first fitting part being arranged on the inner wall of the upper part of the tube;

The cover part further includes:

A sealing member, the sealing member is arranged on the outer wall of the cover;

A second fitting part, the second fitting part being arranged on the outer wall of the cover;

Wherein, in the case where the cover portion closes the tube portion, the second fitting member is located on the upper side of the sealing member, and the second fitting member is fitted and connected to the first fitting member .

In one of the embodiments, the sealing member is an annular protrusion.

In one of the embodiments, the first fitting part is an annular groove, and the second fitting part is an annular protrusion.

In one of the embodiments, the width of the cross section of the second fitting member is smaller than the width of the cross section of the sealing member.

In one of the embodiments, there are a plurality of the first fitting parts, and the plurality of the first fitting parts are arranged at intervals along the axial direction of the tube portion.

In one of the embodiments, there are several second fitting parts, and several second fitting parts are arranged at intervals along the axial direction of the cover.

In one of the embodiments, the cover further includes:

A bursting component, the bursting component is arranged inside the cover;

Wherein, when the cover part closes the tube part, the bursting member destroys the sealing film.

In one of the embodiments, the biochemical test paper tube further includes:

Biochemical test paper, the biochemical test paper is arranged inside the test paper cavity;

Wherein, when the cover part closes the tube part, the sample solution receiving end of the biochemical test paper is close to the cover part.

In one of the embodiments, the length of the biochemical test paper is greater than the height of the test paper cavity.

In one of the embodiments, the difference between the length of the biochemical test paper and the height of the test paper cavity is 1 to 5 mm.

In one of the embodiments, the biochemical test paper is an immunochromatography test paper, and the immunochromatography test paper includes:

Substrate

A chromatographic membrane, the chromatographic membrane is arranged on the upper surface of the substrate;

A water-absorbent pad, the water-absorbent pad is arranged on the lower surface of the substrate;

Wherein, the chromatographic membrane and the water-absorbent pad are in contact with each other at the end of the substrate and transfer the solution.

In one of the embodiments, the end of the chromatographic membrane exceeds the end of the substrate by a certain distance;

The end of the absorbent pad exceeds the end of the substrate by a certain distance;

The end of the chromatographic membrane is in contact with the end of the absorbent pad and transfers the solution.

In one of the embodiments, the chromatographic membrane is also arranged on the lower surface of the substrate, and the end of the chromatographic membrane and the end of the absorbent pad are in contact with each other on the lower surface of the substrate to perform the solution. transfer.

In one of the embodiments, the absorbent pad is also arranged on the upper surface of the substrate, and the end of the chromatographic membrane and the end of the absorbent pad are in contact on the upper surface of the substrate and transfer the solution. .

In one of the embodiments, the immunochromatographic test paper further includes:

A bonding pad, the bonding pad is arranged on the substrate, the end of the bonding pad is in contact with the front end of the chromatography membrane and the solution is transferred to the chromatography membrane;

A guiding film, the guiding film is arranged on the substrate, the end of the guiding film is in contact with the front end of the bonding pad and transferring the solution to the bonding pad;

Wherein, the solution chromatography speed of the guiding membrane is lower than the solution chromatography speed of the binding pad.

In one of the embodiments, the thickness of the guiding film is less than 0.15 mm.

The sample pad is arranged on the substrate, and the end of the sample pad is in contact with the front end of the guiding film and transfers the solution to the guiding film.

The sample pad is arranged on the substrate, and the end of the guiding film is in contact with the front end of the sample pad and transfers the solution to the sample pad.

A sample limiting film, the sample limiting film is arranged on the substrate, the end of the sample limiting film is in contact with the front end of the guiding film, and the solution is transferred to the guiding film.

In one of the embodiments, the absorption saturation volume of the sample limiting membrane is 2-20 μl.

The filter pad is arranged on the substrate, and the end of the guiding membrane is in contact with the front end of the filter pad and transfers the solution to the filter pad.

The water-retaining pad is arranged close to the front end of the guiding film.

In one of the embodiments, the water-retaining pad of the immunochromatographic test paper fills the gap between the immunochromatographic test paper and the test paper fixing member.

A transparent protective film covering at least the chromatographic film and the bonding pad.

In one of the embodiments, the chromatographic membrane includes a detection line and a quality control line arranged in sequence.

In one of the embodiments, the lower surface of the end of the absorbent pad is in contact with the upper surface of the end of the chromatography membrane; or

The upper surface of the end of the absorbent pad is in contact with the lower surface of the end of the chromatography membrane.

In one of the embodiments, the lower surface of the end of the bonding pad is in contact with the upper surface of the front end of the chromatography membrane; or

The upper surface of the end of the bonding pad is in contact with the lower surface of the front end of the chromatography membrane.

In one of the embodiments, the lower surface of the end of the guiding film is in contact with the upper surface of the front end of the bonding pad; or

The upper surface of the end of the guiding film is in contact with the lower surface of the front end of the bonding pad.

In one of the embodiments, the lower surface of the end of the sample pad is in contact with the upper surface of the front end of the guiding film; or

The upper surface of the end of the sample pad is in contact with the lower surface of the front end of the guiding film.

In one of the embodiments, the lower surface of the end of the sample pad is in contact with the upper surface of the front end of the bonding pad; or

The upper surface of the end of the sample pad is in contact with the lower surface of the front end of the bonding pad.

In one of the embodiments, the lower surface of the end of the guiding film is in contact with the upper surface of the front end of the sample pad; or

The upper surface of the end of the guiding film is in contact with the lower surface of the front end of the sample pad.

In one of the embodiments, the lower surface of the end of the guiding film is in contact with the upper surface of the front end of the filter pad; or

The upper surface of the end of the guiding film is in contact with the lower surface of the front end of the filter pad.

In one of the embodiments, the lower surface of the end of the filter pad is in contact with the concave surface of the front end of the bonding pad; or

The upper surface of the end of the filter pad is in contact with the lower surface of the front end of the bonding pad.

In one of the embodiments, the lower surface of the end of the sample limiting film is in contact with the upper surface of the front end of the guiding film; or

The upper surface of the end of the sample limiting film is in contact with the lower surface of the front end of the guiding film.

In one of the embodiments, when the end of the absorbent pad is located on the upper surface of the substrate, and the front end of the absorbent pad is located on the lower surface of the substrate:

The length of the absorbent pad located on the upper surface of the substrate is greater than the length of the absorbent pad located on the lower surface of the substrate; or

The length of the absorbent pad on the upper surface of the substrate is equal to the length of the absorbent pad on the lower surface of the substrate; or

The length of the absorbent pad located on the upper surface of the substrate is less than the length of the absorbent pad located on the lower surface of the substrate.

In one of the embodiments, when the front end of the chromatography membrane is located on the upper surface of the substrate, and the end of the chromatography membrane is located on the lower surface of the substrate:

The length of the chromatography membrane on the upper surface of the substrate is greater than the length of the chromatography membrane on the lower surface of the substrate; or

The length of the chromatography membrane on the upper surface of the substrate is equal to the length of the chromatography membrane on the lower surface of the substrate; or

The length of the chromatography membrane on the upper surface of the substrate is less than the length of the chromatography membrane on the lower surface of the substrate.

In one of the embodiments, the detection line and the quality control line are located on the upper surface of the substrate; or

The detection line is located on the upper surface of the substrate, and the quality control line is located on the lower surface of the substrate; or

The detection line and the quality control line are located on the lower surface of the substrate.

In one of the embodiments, the biochemical test paper further includes:

A transparent hollow tube, the biochemical test paper is arranged inside the transparent hollow tube, and the transparent hollow tube is arranged inside the test paper cavity.

In one of the embodiments, one end of the transparent hollow tube is a closed end.

Compared with the prior art, the present invention adopts the above technical solutions and has the following technical effects:

In the biochemical test paper tube of the present invention, a reaction solution is preset in the solution cavity, and a sealing film is used to seal the solution cavity. There is no need for testing personnel to configure and transfer the solution, reducing operation steps; when in use, the sealing film is destroyed and the test The sample is put into the solution chamber, and rapid detection can be carried out, which improves the detection efficiency.

Description of the drawings

Figure 1 is a cross-sectional view of an unclosed state of a biochemical test paper tube according to an embodiment of the present application (1);

Figure 2 is a cross-sectional view of the closed state of the biochemical test paper tube according to an embodiment of the present application (1);

Figure 3 is a cross-sectional view (2) of the biochemical test paper tube in an unclosed state according to an embodiment of the present application;

4 is a cross-sectional view of the closed state of the biochemical test paper tube according to an embodiment of the present application (2);

Fig. 5 is a schematic diagram (1) of the unclosed state of the biochemical test paper tube according to an embodiment of the present application;

Figure 6 is a cross-sectional view of the biochemical test paper tube in an unclosed state according to an embodiment of the application (3);

Figure 7 is a cross-sectional view of the closed state of the biochemical test paper tube according to an embodiment of the application (3);

Figure 8 is a cross-sectional view of the biochemical test paper tube in an unclosed state according to an embodiment of the application (4);

Figure 9 is a cross-sectional view of the closed state of the biochemical test paper tube according to an embodiment of the present application (4);

FIG. 10 is a schematic diagram (2) of the unclosed state of the biochemical test paper tube according to an embodiment of the present application;

Figure 11 is a cross-sectional view (5) of the biochemical test paper tube in an unclosed state according to an embodiment of the present application;

Figure 12 is a cross-sectional view of the biochemical test paper tube in an unclosed state according to an embodiment of the application (6);

Figure 13 is a cross-sectional view of the closed state of the biochemical test paper tube according to an embodiment of the present application (5);

Figure 14 is a cross-sectional view of the biochemical test paper tube in an unclosed state according to an embodiment of the present application (7);

15 is a cross-sectional view of the closed state of the biochemical test paper tube according to an embodiment of the application (6);

Figure 16 is a schematic diagram (1) of an immunochromatographic test paper according to an embodiment of the present application;

Figure 17 is a cross-sectional view of an immunochromatographic test paper according to an embodiment of the present application (1);

Fig. 18 is a cross-sectional view of a biochemical test paper tube according to an embodiment of the present application (with biochemical test paper);

Figure 19 is a schematic diagram of an immunochromatographic test paper according to an embodiment of the present application (2);

Figure 20 is a cross-sectional view of an immunochromatographic test paper according to an embodiment of the present application (2);

Figure 21 is a schematic diagram of an immunochromatographic test paper according to an embodiment of the present application (3);

Figure 22 is a cross-sectional view of an immunochromatographic test paper according to an embodiment of the present application (3);

Figure 23 is a schematic diagram of an immunochromatographic test paper according to an embodiment of the present application (4);

Figure 24 is a cross-sectional view of an immunochromatographic test paper according to an embodiment of the application (4);

Figure 25 is a cross-sectional view of an immunochromatographic test paper according to an embodiment of the present application (5);

Figure 26 is a cross-sectional view of a transparent hollow tube according to an embodiment of the present application (1);

Figure 27 is a cross-sectional view of a transparent hollow tube according to an embodiment of the present application (2);

Fig. 28 is a cross-sectional view of a biochemical test paper tube (a biochemical test paper sheathed with a transparent hollow tube) according to an embodiment of the present application.

The reference signs are: 100, biochemical test paper tube; 110, tube part; 111, solution cavity; 112, test paper cavity; 113, sealing platform; 114, sealing film; 115, first counterbore; 116, second sink Hole; 117, cover opening part; 118, first fitting part; 120, cover part; 121, cavity; 122, limit part; 123, chamfering part; 124, bursting part; 125, sealing part; 126 , The second fitting part; 130, the connecting part;

200, biochemical test paper; 210, substrate; 220, chromatographic membrane; 221, test line; 222, quality control line; 230, absorbent pad; 240, binding pad; 250, guiding membrane; 260, sample pad; 270, Sample limited film; 280, transparent protective film;

300. Transparent hollow tube.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

The present invention will be further described below in conjunction with the drawings and specific embodiments, but it is not a limitation of the present invention.

Example 1

As shown in FIGS. 1 to 2, a biochemical test paper tube 100 includes a tube portion 110 and a cover portion 120, and the cover portion 120 is used to seal the tube portion 110.

The tube 110 includes a solution cavity 111, a test paper cavity 112, a sealing platform 113 and a sealing film 114. The axial direction of the solution chamber 111 is co-directed with the axial direction of the tube portion 110, and the solution chamber 111 is used for placing a solution, such as a reaction solution. The axial direction of the test paper cavity 112 is parallel to the axial direction of the solution cavity 111, and the test paper cavity 112 is used for placing an immunochromatographic test paper. The sealing platform 113 is arranged on the top end surface of the solution chamber 111 and is arranged all around the solution chamber 111. The sealing film 114 is connected with the sealing platform 113 to seal the solution cavity 111 and prevent the solution in the solution cavity 111 from flowing out.

When the lid 120 closes the tube 110, the top of the solution chamber 111 and the top of the test paper chamber 112 communicate.

Wherein, the solution cavity 111 is a regular-shaped cavity (such as a circular cavity, a rectangular cavity, and a trapezoidal cavity) or an irregular-shaped cavity. The test paper cavity 112 is a regular-shaped cavity (such as a circular cavity, a rectangular cavity, and a trapezoidal cavity) or an irregular shape.

In one of the embodiments, there may be several solution cavities 111, the axes of the several solution cavities 111 are parallel, at least one solution cavity 111 is used for placing biochemical reaction reagents or biochemical reaction solutions, and at least one solution cavity 111 is used for placing functions Sexual reaction reagents. Among them, functional reagents include, but are not limited to, degrading enzymes, lysis solutions, probes, buffers, diluents, etc., or reagents for subsequent reactions after the completion of the biochemical reaction.

In one of the embodiments, there may be several test paper cavities 112, the axes of the several test paper cavities 112 are parallel, and immunochromatographic test papers are placed in each test paper cavity 112, which can simultaneously detect different indicators of the same sample .

Wherein, a plurality of test paper cavities 112 are arranged around the axial direction of the tube 110 as a center.

There is a certain distance between the outer edge of the sealing platform 113 and the tube wall of the tube portion 110, and the sealing platform 113 is higher than the bottom surface of the tube wall and has a certain vertical distance.

Specifically, the width of the sealing platform 113 is at least 1 mm; there is a certain horizontal distance between the outer wall of the sealing platform 113 and the inner wall of the pipe 110, and is at least 0.5 mm; the bottom wall of the sealing platform 113 and the inner wall of the pipe 110 are different There is a certain vertical distance between them, and at least 0.5mm.

When the cover 120 closes the pipe 110, the top of the sealing platform 113 does not contact the bottom of the pipe 110, that is, there is a certain vertical distance between the top of the sealing platform 113 and the bottom of the pipe 110, and is at least 1 mm .

In addition, the top end surface of the sealing platform 113 and the top end surface of the pipe portion 110 may be located on the same horizontal plane; or, the top end surface of the sealing platform 113 is located below the top end surface of the pipe portion 110.

In addition, the top end surface of the test paper cavity 112 is lower than the top end surface of the tube portion 110.

Among them, when leaving the factory, the reaction solution can be preset in the solution chamber 111, and then the solution chamber 111 can be sealed with the sealing film 114; or after leaving the factory, the inspector can prepare the reaction solution after getting the biochemical test paper tube 100 and The reaction solution is placed inside the solution cavity 111, and finally the solution cavity 111 is sealed with a sealing film 114, and the biochemical test paper tube 100 is stored for later use.

In addition, the sealing film 114 can also seal the test paper cavity 112. Specifically, the test paper cavity 112 can be sealed before the immunochromatography test paper is placed in the test paper cavity 112, that is, to prevent foreign matter from entering the test paper cavity 112; or the test paper cavity 112 can be sealed when the immunochromatography test paper is placed in the test paper cavity 112, that is, when the immunochromatography test paper is placed in the test paper cavity 112, Keep the immunochromatographic test paper free from external substances before use.

Wherein, the sealing film 114 may be an aluminum foil film or a plastic film. The sealing film 114 can be assembled with the biochemical test paper tube 100 during the production process, can also be assembled with the biochemical test paper tube 100 before the transportation process, or can be assembled with the biochemical test paper tube 100 before the storage process.

In addition, the shape of the sealing film 114 is substantially the same as the shape of the cavity at the top of the solution chamber 111, that is, the cross-sectional area of the sealing film 114 is slightly larger than the cross-sectional area of the cavity at the top of the solution cavity 111. In this case, it is necessary to use an auxiliary tool to break the sealing film 114, such as a tool with a sharp point, a blunt end, and a blade.

In addition, the shape of the sealing film 114 is different from the shape of the cavity opening at the top of the solution chamber 111, that is, the sealing film 114 includes a sealing part and an extension part. The sealing part seals the solution chamber 111. Part of it is formed in one piece. The shape of the sealing part is basically the same as the shape of the cavity opening at the top of the solution chamber 111. The extension part is in a strip shape and is used to separate the sealing part from the solution chamber 111.

The cover 120 includes a cavity 121 formed by the inner surface of the cover 120 bulging outward, and is used to allow the solution in the solution cavity 111 to enter the cavity 121 when the biochemical test paper tube 100 is inclined. And contact with the immunochromatographic test paper in the test paper cavity 112.

Wherein, the longitudinal section of the cavity 121 is trapezoidal, circular arc or triangular.

In addition, the cover 120 further includes a limiting member 122 which is provided on the outer wall of the cover 120 and is used to cooperate with the top of the tube 110 when the cover 120 closes the tube 110.

Wherein, the limiting member 122 is an annular protrusion.

In addition, the biochemical test paper tube 100 further includes a connecting part 130 which is connected to the tube part 110 and the cover part 120 respectively.

Wherein, the tube portion 110, the cover portion 120, and the connecting portion 130 may be integrally connected, that is, the biochemical test paper tube 100 is a one-piece test tube. In this case, the connection part 130 may be a connection bar.

The method of use in this embodiment is as follows: destroy or remove the sealing film 114, put the sample to be tested into the solution chamber 111, and mix the reaction solution in the solution chamber 111 with the sample to be tested to obtain a mixed solution; seal with the cover 120 Tube portion 110; After reacting for a certain period of time, tilt the tube portion 110 so that the sample solution receiving end of the immunochromatographic test paper arranged in the test paper cavity 112 contacts the mixed solution, and the mixed solution is chromatographed on the immunochromatographic test paper; The test result can be obtained by observing the immunochromatographic test paper; after observing the test result, the biochemical test paper tube 100 can be directly treated as medical waste without worrying about the leakage of the material in the biochemical test paper tube 100.

Example 2

As shown in Figures 3 to 4, the biochemical test paper tube 100 includes a tube portion 110, a lid portion 120, and a connecting portion 130. The tube portion 110 and the lid portion 120 are connected by the connecting portion 130. Closed.

The tube portion 110 includes a solution cavity 111, a test paper cavity 112, a sealing platform 113, and a sealing film 114. The connection relationship and structure of the solution cavity 111, the test paper cavity 112, and the sealing film 114 are basically the same as those in the first embodiment, and will not be repeated here. .

The cover 120 includes a cavity 121, wherein the connection relationship and structure of the cavity 121 are basically the same as those in the first embodiment, and will not be repeated here.

In this embodiment, the cover 120 and the pipe 110 are externally fitted. Specifically, the maximum inner diameter of the cover 120 is the same as the outer diameter of the nozzle of the pipe 110, that is, the cover 120 is sleeved on the outside of the nozzle of the pipe 110.

Example 3

As shown in Figures 5-7, a biochemical test paper tube 100 includes a tube portion 110, a cover portion 120, and a connecting portion 130. The tube portion 110 and the cover portion 120 are connected by the connecting portion 130. Closed.

The tube portion 110 includes a solution cavity 111, a test paper cavity 112, a sealing platform 113, a sealing film 114, and a counterbore unit. The connection relationship and structure of the solution cavity 111, the test paper cavity 112, and the sealing film 114 are basically the same as those of the first embodiment. This will not be repeated here.

The counterbore unit is arranged on the top of the nozzle of the pipe 110 and is used to cooperate with the cover 120 when the cover 120 closes the pipe 110. The shape of the outer wall of the cover 120 matches the shape of the inner wall of the counterbore unit. It is used to prevent the cover 120 from being removed from the counterbore unit without external force damage.

The longitudinal section of the counterbore unit is stepped. Specifically, the counterbore unit includes at least a first counterbore 115 and a second counterbore 116. The first counterbore 115 is provided at the top of the nozzle of the pipe portion 110, and the second counterbore 116 is provided under the first counterbore 115. side.

When the lid 120 closes the tube 110, the limiting member 122 of the lid 120 cooperates with the first counterbore 115 of the tube 110, so that the upper surface of the limiting member 122 and the upper surface of the first counterbore 115 Located on the same level. Using this method of cooperation improves the anti-opening performance of the biochemical test paper tube 100. Without external force damage, it is difficult to separate the cover 120 from the tube 110 and prevent the test sample in the biochemical test paper tube 100 from leaking.

In addition, the width of the cross section of the first counterbore 115 is equal to the width of the cross section of the limiting member 122. Specifically, the inner diameter of the first counterbore 115 is equal to the outer diameter of the limiting member 122.

Wherein, the width of the cross section of the first counterbore 115 is greater than the width of the cross section of the second counterbore 116. Specifically, the inner diameter of the first counterbore 115 is larger than the inner diameter of the second counterbore 116.

In addition, the first counterbore 115 is also provided with a notch for accommodating the connecting portion 130.

In addition, the top of the solution cavity 111 (ie, the mouth of the cavity) and the top of the test paper cavity 112 (ie, the mouth of the cavity) are located in the second counterbore 116. Therefore, the sealing film 114 is disposed in the second counterbore 116 to seal at least the solution chamber 111.

In order to further improve the anti-opening performance of the biochemical test paper tube 100, as shown in FIGS. 6-7, the cover 120 further includes a chamfering member 123, which is arranged on the outer wall of the limiting member 122 and integrated with the limiting member 122 forming. In the case where the cover 120 closes the pipe 110, the width of the cross section of the upper end of the chamfering member 123 is smaller than the width of the cross section of the lower end of the chamfering member 123.

When the cover 120 closes the pipe 110, the limiting member 122 communicates with the chamfering member 123 and is provided in the first counterbore 115, that is, the upper surface of the limiting member 122, the upper surface of the chamfering member 123, and the first counterbore 115 The upper surface of 115 is on the same horizontal plane.

In addition, in order to obtain samples after testing in some cases, as shown in FIGS. 8-9, the tube 110 further includes an opening member 117, which is provided on the upper surface or inside of the first counterbore 115 for Under certain circumstances, the lid 120 is separated from the pipe 110 by the lid opening member 117.

Wherein, the cover opening part 117 is provided through the first counterbore 115. Specifically, the first end of the lid opening member 117 is located on the inner wall of the first counterbore 115, and the second end of the lid opening member 117 is located on the outer wall of the first counterbore 115, and the lid opening member 117 is passed through with the aid of an auxiliary tool, such as a pry Use a rod to lift the lid 120 to separate the lid 120 from the tube 110.

Alternatively, the lid opening member 117 is provided on the upper surface of the first counterbore 115. Specifically, the first end of the opening member 117 is located on the inner wall of the first counterbore 115, and the second end of the opening member 117 is located between the inner wall and the outer wall of the first counterbore 115, passing through the opening member with the aid of an auxiliary tool. 117, such as an opening pick, tilts the cover 120 to separate the cover 120 from the tube 110.

The usage method of this embodiment is basically the same as that of Embodiment 1, and will not be repeated here.

In this embodiment, when the cover part closes the pipe part, it is difficult to separate the cover part from the pipe part under the action of the counterbore unit; the effect of the chamfering part that is difficult to provide a force point, even if the external force is strong The counterbore unit and the chamfering part cannot separate the cover and the tube; in some cases, the cover can be separated from the tube by the opening part to recover the solution or substance in the biochemical test paper tube.

Example 4

As shown in Figures 12-13, a biochemical test paper tube 100 includes a tube portion 110, a lid portion 120, and a connecting portion 130. The tube portion 110 and the lid portion 120 are connected by the connecting portion 130. Closed.

The connection relationship and structure of the connecting portion 130 are basically the same as those of the first embodiment, and will not be repeated here.

The tube portion 110 includes a solution cavity 111, a test paper cavity 112, a sealing platform 113, a sealing film 114, and a counterbore unit. The connection relationship and structure of the solution cavity 111, the test paper cavity 112, the sealing film 114, and the counterbore unit are the same as those of the second embodiment. It's basically the same, so I won't repeat it here.

The cover 120 includes a cavity 121, a limiting member 122, and a bursting member 124. The connection relationship and structure of the cavity 121 and the limiting member 122 are basically the same as those in the first embodiment, and will not be repeated here.

The bursting component 124 is disposed inside the cover 120, its first end is connected to the inner bottom surface of the cover 120, and its second end is located at the opening of the cover 120. In the case where the cover 120 does not completely close the pipe 110, the second end of the bursting member 124 contacts the sealing film 114 to break the sealing film 114.

Wherein, the second end of the bursting component 124 may be a blunt end, a pointed end, or a blade part. It can break the sealing film 114 when it contacts the sealing film 114.

When the bursting member 124 is a blade portion, there are at least two blade portions for cutting the sealing film 114.

The method of use in this embodiment is as follows: first move the cover 120 to the tube 110 so that the bursting part 124 contacts and breaks the sealing film 114 to expose the solution cavity 111; put the sample to be tested, such as a throat swab, into the solution cavity 111; the cap 120 is closed to the tube 110, and the limiting component 121 of the cap 120 is immersed in the first counterbore 115; after the reaction in the solution chamber 111 is complete, the biochemical test paper tube 100 is tilted to make the reaction solution contact The immunochromatographic test paper in the test paper cavity 112, the reaction solution is chromatographed on the immunochromatographic test paper, and the test result can be obtained by observing the immunochromatographic test paper; after the test result is observed, the biochemical test paper tube 100 can be directly used as There is no need to worry about the leakage of the material in the biochemical test paper tube 100 in the treatment of medical waste.

In this embodiment, a bursting component is provided on the cover to destroy the sealing film, reducing the probability of pollution caused by artificially destroying the sealing film, and improving the accuracy of the detection result.

Example 5

As shown in Figures 14-15, a biochemical test paper tube 100 includes a tube portion 110, a lid portion 120, and a connecting portion 130. The tube portion 110 and the lid portion 120 are connected by the connecting portion 130. Closed.

The tube portion 110 includes a solution cavity 111, a test paper cavity 112, a sealing platform 113, a sealing film 114, a counterbore unit and a first fitting part 118, wherein the solution cavity 111, the test paper cavity 112, the sealing film 114, and the connection of the counterbore unit The relationship and structure are basically the same as those in Embodiment 2, and will not be repeated here.

The first fitting members 118 are provided on the inner wall of the top of the pipe portion 110, and the first fitting members 118 are arranged at intervals along the axial direction of the pipe portion 110.

Specifically, the first fitting part 118 is arranged on the inner wall of the second counterbore 116, and the first fitting part 118 is arranged at intervals along the axial direction of the second counterbore 116.

The cover 120 includes a cavity 121, a limiting component 122, a bursting component 124, a sealing component 125, and a second fitting component 126, wherein the connection relationship and structure of the cavity 121, the limiting component 122, and the bursting component 124 are the same Embodiment 3 is basically the same and will not be repeated here.

The sealing member 125 and the second fitting member 126 are spaced apart in the axial direction of the cover 120. When the lid 120 closes the pipe 110, the sealing member 125 is located on the lower side of the lid 120, and the second fitting member 126 is located on the upper side of the sealing member 125.

When the lid 120 closes the tube 110, the sealing member 125 seals the tube 110, and the second fitting member 126 is fitted and connected to the first fitting member 118 so that the lid 120 and the tube 110 are tightly connected. connect.

In one of the embodiments, the sealing member 125 is an annular protrusion whose outer diameter is equal to the inner diameter of the second counterbore 116 of the tube portion 110.

In one of the embodiments, the first fitting part 118 is an annular groove; the second fitting part 126 is an annular protrusion, the outer diameter of which is larger than the inner diameter of the second counterbore 116 of the tube portion 110, and is compared with the first A fitting part 118 fits tightly.

Through the sealing part, the first fitting part and the second fitting part of this embodiment, the tightness of the connection between the cover part and the pipe part is further improved, and the resistance to separate the cover part and the pipe part is greatly improved, which is effective Prevent leakage of the solution in the biochemical test paper tube, avoid polluting the environment, and prevent endangering life and health.

Example 6

This embodiment relates to biochemical test papers placed in the biochemical test paper tubes of Examples 1 to 4.

In this embodiment, the biochemical test paper is an immunochromatographic test paper as an example for description.

As shown in Figures 16-18, a biochemical test paper 200 includes a substrate 210, a chromatographic membrane 220, a water-absorbing pad 230, a bonding pad 240, and a guiding membrane 250, wherein the guiding membrane 250, the binding pad 240, and the chromatographic membrane The film 220 and the water absorbing pad 230 are sequentially arranged on the substrate 210.

The length of the biochemical test paper 200 is greater than the height of the test paper cavity 112. Generally speaking, the difference between the length of the biochemical test paper 200 and the height of the test paper cavity 112 is 1 mm to 5 mm, and the preferable difference is 2 mm and 3 mm.

In addition, when the lid 120 closes the tube 110, the sample solution receiving end of the biochemical test paper 200 extends into the cavity 122 of the lid 120.

The substrate 210 is made of plastic, such as self-adhesive plastic.

The guiding film 250 is disposed on the upper surface of the substrate 210, that is, the lower surface of the guiding film 250 and the upper surface of the substrate 210 are connected, such as by bonding. The end of the guiding film 250 is in contact with the front end of the bonding pad 240, and the guiding film 250 transfers the solution to the bonding pad 240.

The upper surface of the end of the guiding film 250 is in contact with the lower surface of the front end of the bonding pad 240, or the lower surface of the end of the guiding film 250 is in contact with the upper surface of the front end of the bonding pad 240.

Among them, the guiding film 250 is made of cellulose film.

Wherein, the thickness of the guiding film 250 is less than 0.15 mm.

The bonding pad 240 is disposed on the upper surface of the substrate 210, that is, the lower surface of the bonding pad 240 and the upper surface of the substrate 210 are connected, such as by bonding. The end of the bonding pad 240 is in contact with the front end of the chromatography membrane 220, and the bonding pad 240 transfers the solution to the chromatography membrane 220. Specifically, the upper surface of the end of the bonding pad 240 is in contact with the lower surface of the front end of the chromatography membrane 220, or the lower surface of the end of the bonding pad 240 is in contact with the upper surface of the front end of the chromatography membrane 220.

Among them, the bonding pad 240 is a colloidal gold pad.

Wherein, the bonding pad 240 is made of glass fiber, polyester film, cellulose filter paper, non-woven fabric and other materials.

The solution chromatography speed of the guiding membrane 250 is lower than the solution chromatography speed of the bonding pad 240.

The chromatographic membrane 220 is disposed at least on the upper surface of the substrate 210, that is, the lower surface of the chromatographic membrane 220 and the upper surface of the substrate 210 are connected, such as by bonding. The end of the chromatographic membrane 220 is in contact with the end of the absorbent pad 230, and the chromatographic membrane 220 transfers the solution to the absorbent pad 230.

Wherein, the chromatographic membrane 220 is further provided with a detection line 221 and a quality control line 222, which are sequentially arranged along the front end to the end of the chromatographic membrane 220.

Among them, the chromatography membrane 220 is made of nitrocellulose membrane.

The absorbent pad 230 is disposed at least on the bottom surface of the substrate 210, that is, the top surface of the absorbent pad 230 and the bottom surface of the substrate 210 are connected, such as by bonding. The end of the absorbent pad 230 is in contact with the end of the chromatography membrane 220.

Among them, the absorbent pad 230 is absorbent paper.

Wherein, the end of the chromatographic membrane 220 and the end of the absorbent pad 230 are in contact with the end of the substrate 210 and the solution is transferred.

In the first implementation of this embodiment, the end of the chromatography membrane 220 exceeds the end of the substrate 210 by a certain distance, the end of the absorbent pad 230 exceeds the end of the substrate 210 by a certain distance, and the end of the chromatography membrane 220 and the absorbent pad The end of 230 contacts and performs solution transfer, that is, the lower surface of the end of the chromatography membrane 220 and the upper surface of the end of the absorbent pad 230 contact and transfer the solution. In this embodiment, the chromatography membrane 220, the substrate 210, and the absorbent pad 230 form a sandwich structure.

In the second implementation of this embodiment, the chromatography membrane 220 is also disposed on the lower surface of the substrate 210, that is, the end of the chromatography membrane 220 is bent downward at the end of the substrate 210. Specifically, the upper surface of the end of the chromatography membrane 220 is in contact with the upper surface of the end of the absorbent pad 230 and the solution is transferred, or the lower surface of the end of the chromatography membrane 220 is in contact with the lower surface of the end of the absorbent pad 230 and the solution is transferred. transfer.

In this embodiment, the length of the chromatography membrane 220 located on the upper surface of the substrate 210 is greater than the length of the chromatography membrane 220 located on the lower surface of the substrate 210; or, the chromatography membrane 220 located on the upper surface of the substrate 210 The length of is equal to the length of the chromatography membrane 220 on the lower surface of the substrate 210; or, the length of the chromatography membrane 220 on the upper surface of the substrate 210 is less than the length of the chromatography membrane 220 on the lower surface of the substrate 210.

Preferably, the length of the chromatography membrane 220 located on the upper surface of the substrate 210 is greater than the length of the chromatography membrane 220 located on the lower surface of the substrate 210

In the third implementation of this embodiment, the absorbent pad 230 is also disposed on the upper surface of the substrate 210, that is, the end of the absorbent pad 230 is bent upward at the end of the substrate 210. Specifically, the upper surface of the end of the absorbent pad 230 is in contact with the upper surface of the end of the chromatography membrane 220 and the solution is transferred, or the lower surface of the end of the absorbent pad 230 is in contact with the lower surface of the end of the chromatography membrane 220 and the solution is transferred. transfer.

In this embodiment, the length of the absorbent pad 230 on the upper surface of the substrate 210 is greater than the length of the absorbent pad 230 on the lower surface of the substrate 210; or, the length of the absorbent pad 230 on the upper surface of the substrate 210 is equal to The length of the absorbent pad 230 on the bottom surface of the substrate 210; or, the length of the absorbent pad 230 on the top surface of the substrate 210 is less than the length of the absorbent pad 230 on the bottom surface of the substrate 210.

Preferably, the length of the absorbent pad 230 on the upper surface of the substrate 210 is smaller than the length of the absorbent pad 230 on the lower surface of the substrate 210.

In addition, in order to ensure that the end of the chromatography membrane 220 and the end of the absorbent pad 230 are in contact, a thin film is also provided at the end of the chromatography membrane 220 and the end of the absorbent pad 230. The thin film covers the chromatographic membrane 220 and the absorbent pad 230 to keep the chromatographic membrane 220 and the absorbent pad 230 in contact.

In this embodiment, the length of the biochemical test paper 200 is 2 cm to 4 cm, preferably 2.8 cm, 3.0 cm, 3.2 cm, 3.5 cm.

Example 7

As shown in Figures 19-20, a biochemical test paper 200 includes a substrate 210, a chromatographic membrane 220, an absorbent pad 230, a bonding pad 240, a guiding film 250, and a sample pad 260, wherein the sample pad 260, the guiding film 250, the bonding pad 240, the chromatographic membrane 220 and the absorbent pad 230 are arranged on the substrate 210.

Among them, the connection relationship, structure and composition of the substrate 210, the chromatographic membrane 220, the water-absorbing pad 230 and the bonding pad 240 are basically the same as those in Embodiment 1, and will not be repeated here.

The sample pad 260 is disposed on the upper surface of the substrate 210, that is, the lower surface of the sample pad 260 and the upper surface of the substrate 210 are connected, such as by bonding.

Among them, the sample pad 260 is made of glass fiber, polyester film, cellulose filter paper, non-woven fabric and other materials.

In the first implementation of this embodiment, the end of the sample pad 260 is in contact with the front end of the guiding film 250, and the sample pad 260 transfers the solution to the guiding film 250. Specifically, the upper surface of the end of the sample pad 260 is in contact with the lower surface of the front end of the guide film 250, or the lower surface of the end of the sample pad 260 is in contact with the upper surface of the front end of the guide film 250.

In the second implementation of this embodiment, the front end of the sample pad 260 is in contact with the end of the guiding film 250, and the guiding film 250 transfers the solution to the sample pad 260. Specifically, the upper surface of the end of the guiding film 250 is in contact with the lower surface of the front end of the sample pad 260, or the lower surface of the end of the guiding film 250 is in contact with the upper surface of the front end of the sample pad 260.

The end of the sample pad 260 is in contact with the front end of the bonding pad 240, and the sample pad 260 transfers the solution to the bonding pad 240. Specifically, the upper surface of the end of the sample pad 260 is in contact with the lower surface of the front end of the bonding pad 240, or the lower surface of the end of the sample pad 260 is in contact with the upper surface of the front end of the bonding pad 240.

In the third implementation of this embodiment, the immunochromatographic test paper includes two guiding films 250 respectively arranged on the front and back sides of the sample pad 260, that is, the end of the first guiding film 250 and the sample pad 260 The first guiding film 250 transfers the solution to the sample pad 260. Specifically, the upper surface of the end of the first guiding film 250 is in contact with the lower surface of the front end of the sample pad 260, or the lower surface of the end of the first guiding film 250 is in contact with the upper surface of the front end of the sample pad 260 .

The end of the sample pad 260 is in contact with the second guiding film 250, and the sample pad 260 transfers the solution to the second guiding film 250. The upper surface of the end of the sample pad 260 is in contact with the lower surface of the front end of the second guiding film 250, or the lower surface of the end of the sample pad 260 is in contact with the upper surface of the front end of the second guiding film 250.

Wherein, in the case where there is only one guiding membrane 250, the guiding membrane 250 may be the first guiding membrane; when there are two guiding membranes 250, the guiding membrane 250 close to the chromatographic membrane 220 may be The first guiding membrane, and the guiding membrane 250 away from the chromatographic membrane 220 may be the second guiding membrane.

In this embodiment, the solution chromatography speed of the sample pad 260 is greater than the solution chromatography speed of the guiding membrane 250.

In this embodiment, the length of the biochemical test paper 200 is 2 cm to 4 cm, preferably 3.2 cm, 3.5 cm.

Example 8

As shown in Figures 21-22, a biochemical test paper 200 includes a substrate 210, a chromatographic membrane 220, a water-absorbing pad 230, a bonding pad 240, a guiding film 250, and a sample limit film 270, wherein the sample limit film 270, the guide film The guiding film 250, the bonding pad 240, the chromatographic film 220 and the water absorption pad 230 are sequentially arranged on the substrate 210.

Among them, the connection relationship, structure and composition of the substrate 210, the chromatographic membrane 220, the water-absorbing pad 230, the bonding pad 240 and the guiding membrane 250 are basically the same as those of Embodiment 5, and will not be repeated here.

The sample limiting film 270 is disposed on the upper surface of the substrate 210, that is, the lower surface of the sample limiting film 270 is connected to the upper surface of the substrate 210, such as by bonding. The end of the sample limiting film 270 is in contact with the front end of the guiding film 250, and the sample limiting film 270 transfers the solution to the guiding film 250. Specifically, the upper surface of the end of the sample limiting film 270 is in contact with the lower surface of the leading end of the guiding film 250, or the lower surface of the end of the sample limiting film 270 is in contact with the upper surface of the leading end of the guiding film 250.

Wherein, the absorption saturation volume of the sample limiting membrane 270 is 2-20 μl, which can absorb a small amount of sample.

Among them, the sample limit film 270 is made of glass fiber, polyester film, cellulose filter paper and other materials.

In this embodiment, the length of the biochemical test paper 200 is 2 cm to 4 cm, preferably 3.3 cm, 3.5 cm, 3.7 cm.

Example 9

As shown in Figures 23-24, a biochemical test paper 200 includes a substrate 210, a chromatographic membrane 220, an absorbent pad 230, a bonding pad 240, a guiding membrane 250, a sample pad 260, and a sample limit film 270. The sample limit The membrane 270, the guiding membrane 250, the sample pad 260, the bonding pad 240, the chromatographic membrane 220 and the water absorption pad 230 are arranged on the substrate 210.

Among them, the connection relationship, structure and composition of the substrate 210, the chromatographic membrane 220, the absorbent pad 230, the bonding pad 240, the guiding membrane 250 and the sample pad 260 are the same as those of the second embodiment and the third embodiment of Example 6. It's basically the same, so I won't repeat it here.

In this embodiment, the length of the biochemical test paper 200 is 2 cm to 4 cm, preferably 3.6 cm or 3.8 cm.

Example 10

In this embodiment, the biochemical test paper is an immunochromatographic test paper as an example for description. As shown in FIG. 25, a biochemical test paper 200 includes a substrate 210, a chromatographic membrane 220, a water-absorbing pad 230, a bonding pad 240, a guiding film 250, and a transparent protective film 280, wherein the guiding film 250 and the bonding pad 240 , The chromatographic membrane 220 and the absorbent pad 230 are sequentially arranged on the substrate 210.

Among them, the connection relationship, structure and composition of the substrate 210, the chromatographic membrane 220, the water-absorbing pad 230, the bonding pad 240 and the guiding membrane 250 are basically the same as those of Embodiment 1, and will not be repeated here.

The lower surface of the transparent protective film 280 covers at least the bonding pad 240 and the chromatography film 220.

In this embodiment, the use of the transparent protective film 280 can prevent the bonding pad 240 and the chromatography film 220 from contacting the exogenous aqueous mixture, and improve the accuracy of the detection result of the chromatography test paper.

In addition, the transparent protective film 280 can also be applied to the biochemical test papers of Examples 6-8.

Example 11

As shown in FIG. 26, the biochemical test paper 200 further includes a transparent hollow tube 300. The transparent hollow tube 300 wraps the biochemical test paper 200 inside the transparent hollow tube 300, that is, the biochemical test paper 200 is disposed inside the transparent hollow tube 300.

The inner surface of the transparent hollow tube 300 is a hydrophobic surface.

The first end of the transparent hollow tube 300 is a closed end, and the second end is an open end. The purpose of setting the open end is to facilitate the movement of the biochemical test paper 200 from the opening to the inside of the transparent hollow tube 300.

In addition, the sample solution receiving end of the biochemical test paper 200 is located at the open end of the transparent hollow tube 300.

Wherein, the transparent hollow tube 300 is made of a transparent material, such as plastic or thermoplastic resin, which is convenient for observing the detection or diagnosis result of the biochemical test paper 200.

In one of the embodiments, as shown in FIG. 27, the width of the cross section of the second end of the open end of the transparent hollow tube 300 is larger than the inner diameter of the cross section of the first end of the open end. Preferably, the width of the cross section of the open end of the transparent hollow tube 300 decreases from the second end of the open end to the first end of the open end.

As shown in Figure 28, putting the biochemical test paper 200 covered with a transparent hollow tube 300 into the test paper cavity 112 of the biochemical test paper tube 100 can prevent the biochemical test paper 200 from directly contacting the inner surface of the test paper cavity 112 and prevent the test paper cavity 112 from being damaged. The surface tension of the inner surface affects the adsorption rate of the biochemical test paper 200.

The above descriptions are only preferred embodiments of the present invention, and do not limit the implementation and protection scope of the present invention. For those skilled in the art, they should be able to realize that all equivalents made by using the description and illustrations of the present invention are equivalent. The solutions obtained by substitutions and obvious changes should all be included in the protection scope of the present invention.

Claims

A biochemical test paper tube, comprising a tube part and a cover part, characterized in that the tube part comprises:

A solution cavity, a sealing platform is arranged on the top end surface of the solution cavity, the sealing platform is arranged all around the solution cavity, and the inner diameter of the nozzle is the maximum inner diameter of the pipe;

Test paper cavity, used to hold biochemical test paper;

When the cover part closes the tube part, the sealing platform and the top of the test paper cavity have a certain distance from the bottom of the cover part.
The biochemical test paper tube according to claim 1, wherein the top end surface of the test paper cavity is lower than the top end surface of the tube portion.
The biochemical test paper tube according to claim 1, wherein there is a certain separation distance between the outer edge of the sealing platform and the tube wall of the tube portion, and the sealing platform is higher than the bottom surface of the tube wall. And has a certain vertical distance.
The biochemical test paper tube according to any one of claims 1 to 3, wherein the tube part further comprises:

The sealing film is connected with the sealing platform to seal the solution cavity.
The biochemical test paper tube according to any one of claims 1 to 4, wherein the cover part of the biochemical test paper tube is connected to the tube part.
The biochemical test paper tube according to any one of claims 1 to 5, wherein the cover part comprises:

A cavity is formed by the inner surface of the cover portion bulging outward.
The biochemical test paper tube according to any one of claims 1 to 6, wherein the tube part further comprises:

A counterbore unit, the counterbore unit being arranged on the top of the nozzle of the pipe part;

Wherein, when the cover part closes the tube part, the cover part cooperates with the counterbore unit.
The biochemical test paper tube according to claim 7, wherein the counterbore unit comprises:

A first counterbore, the first counterbore being arranged at the top of the nozzle of the pipe part;

A second counterbore, the second counterbore being arranged on the lower side of the first counterbore;

Wherein, the width of the cross section of the first counterbore is greater than the width of the cross section of the second counterbore.
The biochemical test paper tube according to claim 7 or 8, wherein the cover part further comprises:

A chamfering part, the chamfering part is arranged on the outer wall of the cover;

Wherein, when the cover part closes the tube part, the chamfering member is matched with the counterbore unit.
The biochemical test paper tube according to any one of claims 1-9, wherein the cover part further comprises:

A bursting component, the bursting component is arranged inside the cover;

Wherein, when the cover part closes the tube part, the bursting member destroys the sealing film.
The biochemical test paper tube according to any one of claims 1-10, wherein the tube part further comprises:

A first fitting part, the first fitting part being arranged on the inner wall of the upper part of the tube;

The cover part further includes:

A sealing member, the sealing member is arranged on the outer wall of the cover;

A second fitting part, the second fitting part being arranged on the outer wall of the cover;

Wherein, in the case where the cover portion closes the tube portion, the second fitting member is located on the upper side of the sealing member, and the second fitting member is fitted and connected to the first fitting member .
The biochemical test paper tube according to any one of claims 1-11, wherein the biochemical test paper tube further comprises:

Biochemical test paper, the biochemical test paper is arranged inside the test paper cavity;

Wherein, when the cover part closes the tube part, the sample solution receiving end of the biochemical test paper is close to the cover part.
The biochemical test paper tube according to claim 12, wherein the length of the biochemical test paper is greater than the height of the test paper cavity.
The biochemical test paper tube according to claim 12 or 13, wherein the biochemical test paper further comprises:

A transparent hollow tube, the biochemical test paper is arranged inside the transparent hollow tube, and the transparent hollow tube is arranged inside the test paper cavity.
The biochemical test paper tube according to claim 14, wherein one end of the transparent hollow tube is a closed end.