CN219016326U - Liquid detection device - Google Patents

Abstract

The application discloses liquid detection device includes: the liquid adding and reacting container comprises a liquid adding part and a reacting part which are arranged independently and communicated with each other, wherein the liquid adding part forms a liquid adding cavity; the reaction part forms a reaction cavity, a detection groove is arranged in the cavity and is used for accommodating a plurality of test papers, and overflow holes are formed in the lower parts of the liquid adding and reaction container; the test paper fixing piece is used for fixing the plurality of test papers and is accommodated in the liquid adding and reacting container, and after the test papers are fixed, the lower ends of the test papers can be inserted into the detecting groove to react with the liquid to be detected; the shell is used for accommodating the liquid adding and reacting container, the test paper fixing piece and the test paper, the inner space of the shell is communicated with the overflow hole, and the shell is used for receiving liquid discharged from the overflow hole.

Description

Liquid detection device

Technical Field

The application relates to the technical field of detection, in particular to a liquid detection device.

Background

There are many types of diagnostic devices on the market today for detecting human or animal body fluids. These devices are increasingly used in households, mainly for the analysis of various liquids, such as body fluids, i.e. biological samples from humans or animals, such as urine, blood, saliva samples, etc. Most of the diagnostic devices used for testing in the market at present can only test one detection index, have single functions, cannot test multiple detection indexes at the same time, have smaller application range, and increase the body fluid sample size required to be collected after multiple measurements are performed for multiple times due to the limitation.

Because saliva (blood or urine, etc.) samples are inconvenient to store (urine needs to be collected fresh and needs to be detected within 2 hours), the saliva samples are generally taken and used at present, and the samples can be ensured not to be polluted or exchanged, so that the detection result is influenced.

Disclosure of Invention

In view of the above, the present application proposes a liquid detection device.

The liquid detection device includes: the liquid adding and reacting container (2 a) comprises a liquid adding part (2) and a reacting part (3) which are arranged independently and communicated with each other, wherein the liquid adding part (2) forms a liquid adding cavity (2 b); the reaction part (3) forms a reaction cavity (3 b) and is provided with one or more detection grooves (31) in the cavity for accommodating a plurality of test papers (5), and the lower part of the liquid adding and reaction container (2 a) is provided with an overflow hole (25 a);

the test paper fixing piece (4) is used for fixing the plurality of test papers and is accommodated in the liquid adding and reacting container (2 a), and after the test papers (5) are fixed, the lower ends of the test papers (5) can be inserted into the detecting groove (31) to react with the liquid to be detected;

the shell (6) is used for accommodating the liquid adding and reacting container (2 a), the test paper fixing piece (4) and the test paper (5), the inner space of the shell (6) is communicated with the overflow hole (25 a), and the shell (6) is used for receiving liquid discharged by the overflow hole (25 a); and

and a sealing piece (1) for sealing the shell.

In some embodiments, the liquid adding part (2) and the reaction part (3) are arranged side by side and are communicated with each other.

In some embodiments, the overflow hole (25 a) is arranged at the lower part of the liquid adding part (2) and is communicated with the liquid adding cavity (3 a); or the overflow holes (25 a) are arranged in the reaction part (3) and communicated with the reaction cavity (3 b), or the overflow holes are multiple and are respectively arranged in the liquid adding part (2) and the reaction part (3).

In some embodiments, the housing (6) has a transparent viewing window capable of exposing the test strip.

In some embodiments, the height of the bottom of the housing (6) is lower than the height of the bottom of the charging and reaction vessel (2 a).

In some embodiments, the housing (6) has at least one lifting support structure for lifting and supporting the charging and reaction vessel (2 a).

In some embodiments, the at least one lift support structure is a height adjustable structure.

In some embodiments, the size of the liquid adding opening at the upper part of the liquid adding part (2) is larger than that of the liquid outlet at the lower part, and the liquid adding part (2) is tightened from top to bottom to form a drainage channel.

In some embodiments, the liquid adding part (2) comprises a liquid storage and overflow section (25) at the bottom, and the overflow hole (25 a) is arranged in the liquid storage and overflow section (25).

In some embodiments, the reaction part (3) further comprises a guide part (32) arranged at two sides above the reaction cavity (3 b) for guiding the insertion of one or more test paper fixing pieces (4).

In some embodiments, a support limiter (33) for supporting and limiting the test paper holder (4) is provided at the bottom of the guide (32).

In some embodiments, the housing (6) comprises a first portion (61) cooperating with the charging portion (2) and a second portion (62) cooperating with the reaction portion (3), said housing completely accommodating the charging and reaction vessel (2 a).

In some embodiments, the liquid to be tested is a body fluid of a human or animal.

The embodiment of the application provides a liquid detection device which can detect liquid such as body fluid (saliva, urine and the like). The device has convenient to carry, and the structure is exquisite, and easy operation is quick, detects that the project can multiple combination, and is multiple, and the disposable body fluid volume of gathering characteristics such as less.

The liquid detection device can be used for simultaneously and rapidly detecting a plurality of projects, can be widely applied to the field of rapid detection of fluids, such as drug abuse detection, drug rapid detection and the like, and can be widely applied to sites such as on-site law enforcement of drug-taking criminals, drug-taking stations, hospitals, physical examination centers, families and the like.

Through the structural design of the application, the liquid (sample) to be detected and the position of the reaction cavity are separated to form a reaction which does not directly occur, redundant liquid (such as liquid which is inevitably over the range in manual operation and has overflow effect) to be discharged into the bottom of the shell, the smaller amount of liquid sample required by normal multiple detection reactions is kept, the reaction is scheduled with the test strip, and the detection result is automatic.

Drawings

Fig. 1 is a schematic view showing the appearance of a liquid detection device according to the present application.

Fig. 2 is an exploded view of the liquid detection device of the present application.

Fig. 3 is an enlarged schematic view of the element 2a of fig. 2.

Fig. 4 is a sectional view showing an assembled liquid detection device of the present application.

Fig. 5 is an exploded cross-sectional view of the liquid detection device of the present application.

Fig. 6 shows the position of the vent.

Fig. 7 shows the position of the cross support column.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

Fig. 1 is a schematic view showing the appearance of a liquid detection device according to the present application. Fig. 2 is an exploded view of the liquid detection device of the present application. As shown in fig. 1 and 2, the present application discloses a liquid detection device, specifically, a multi-joint detection reagent reaction device for liquid detection. The liquid herein may be a body fluid of a human or animal. The liquid detection device comprises a sealing piece 1, a liquid adding and reacting container 2a, a test paper fixing piece 4 for fixing at least one test paper 5 and a shell 6.

The closure 1 may be a sealing film for use as an upper end closure. The device can be integrally sealed by using the fixing modes such as viscosity, pressure, a buckle structure and the like, so that the environment-friendly and leak-free effect is achieved. "closed" herein includes both sealed and cases where the enclosure is closed only and not sealed under certain circumstances.

Fig. 3 is an enlarged schematic view of the element 2a of fig. 2. The liquid feeding and reacting vessel 2a includes a liquid feeding portion 2 and a reacting portion 3. The liquid adding part 2 and the reaction part 3 are separately arranged and communicated with each other. As used herein, "disposed solely" means that the two are not completely nested together or wrapped around each other, meaning that the two are partially independent of each other and partially connected to each other. In an alternative embodiment, the charging portion 2 and the reaction portion 3 are arranged side by side but communicate with each other, respectively forming a charging chamber 2b and a reaction chamber 3b communicating with each other. The filling chamber 2b can contain, for example, 0.5ml to 30ml of liquid, and the excess liquid can escape through overflow openings 25a provided in the lower part of the filling and reaction vessel 2 a.

The test strip holder 4 includes two holders 41 and 42 in the present embodiment, both of which have substantially the same structure and are each for accommodating a plurality of test strips 5.

The test paper fixing piece 4 is provided with a test paper groove. In this embodiment, the test strips 5 are used in combination, and therefore, the test strips have a plurality of test strip grooves, which are preferably vertical. The test strips 5 are arranged in the test strip grooves of the test strip fixing piece 4, the bottoms of all the test strips 5 are contacted with the bottoms of the detection grooves 31 at the lower part of the reaction part 3, namely, the lower ends of the test strips 5 extend into the detection grooves 31 so as to detect the test strips 5 respectively. The detection groove 31 may form the reaction chamber 3b described above, for example.

In other embodiments, the test strip holder 4 may be one or more. Each fixing piece can comprise a body, and a test paper groove is formed in the body and used for inserting or placing test paper. In this embodiment, the test paper fixing part 4 is a plate body, one side of the test paper fixing part can be a plane, a plurality of separated test paper grooves are formed in the other side of the test paper fixing part, different test paper grooves are separated through processed structures, and the test paper fixing part 4 also has a constraint structure for constraining displacement of the loaded test paper. In the present embodiment, the two fixing members 41, 42 each have a fool-proof limiting portion, such as the notches 41a, 42a; the fool-proof limiting structures are used for being matched with fool-proof limiting structures which are arranged on two sides of the interior of the reaction cavity and are close to the bottom, limiting is carried out, and reverse insertion is prevented. In this embodiment, the two fixtures 41 and 42 are mounted with the planes opposite, and the grooved sides are opposite for exposing the test strip 5 on both the front and back sides.

After the test strip 5 is inserted into the test strip holder 4, the tip of the test strip is protruded from the test strip holder 4 to be subsequently protruded into the detection groove 31 of the reaction part 3. I.e. the dimension of the test strip holder in the longitudinal direction shown in fig. 2 is smaller than the length of the test strip 5. After insertion of the test strip 5, the bottom of the test strip 5 extends beyond the test strip holder 4.

As shown in fig. 2, the size or area of the liquid inlet at the upper part of the liquid adding part 2 of the liquid adding and reacting container 2a is larger than that of the liquid outlet at the lower part. In the present embodiment, the liquid charging portion 2 is shaped as a solid of revolution, and the upper portion thereof has a shape with a larger diameter and a smaller upper portion, and in other embodiments, if the liquid charging portion 2 is shaped as a square or the like, the size of the upper portion thereof will be larger than the diameter or size of the lower portion. In some preferred embodiments, the diameter of the upper part of the liquid adding part 2 is generally larger than the diameter of the bottle mouth of a common disposable sampling tube, so that a sampling vessel such as a urine cup, a saliva collector and the like can be easily poured in, and the sample is prevented from leaking out.

The liquid adding part 2 is tightened from top to bottom to form a drainage channel, in some embodiments, the tightening mode can be gradual tightening or sectional tightening, in this embodiment, sectional tightening is performed, and the thinnest part is, for example, 0.5mm-5mm, and the experimental verification effect is better. Specifically, as shown in fig. 2, the filling portion 2 includes a first tightening segment 21, a first transition segment 22, a second tightening segment 23, a second transition segment 24, a liquid storage and overflow segment 25 from top to bottom (i.e., from top to bottom in fig. 2). The reaction part 3 is used for matching and installing the test paper fixing piece 4 and the test paper 5, and generating reaction.

As shown in fig. 6, the upper portion of the filling portion 2 has a vent hole 21a, and in this embodiment, the first tightening segment 21 is provided with the vent hole 21a for discharging gas. The liquid adding part 2 has smaller internal volume, for example, can contain 0.5ml-30ml of liquid, so as to fully utilize the liquid to be detected (smaller amount required for completing detection), avoid the need of excessive liquid to be detected, and facilitate the added liquid sample to be detected to slowly flow into the reaction part 3.

The liquid storage and overflow section 25 of the liquid adding part 2 is positioned at the middle lower part of the liquid adding part 2, and the liquid storage and overflow section 25 is provided with an overflow hole 25a, so that after a certain amount of liquid sample to be detected flows into the reaction part 3, the redundant liquid is discharged into the shell 6 with overflow effect through the overflow hole 25a, and a proper amount of the liquid sample to be reacted in the reaction part 3 is ensured. The term "lower-middle" as used herein refers to the upper part of the filling chamber 3, and all refer to the direction from the top to the bottom in fig. 2. The middle lower part can comprise the middle part of the liquid adding part 2 and the lower part, and the overflow hole 25a is arranged at the position, so that excessive sample discharge can be ensured, and the reaction is prevented from being influenced.

It is to be noted that the number, form and position of the overflow holes 25a are not particularly limited, and may be one or more, and may be various shapes. The overflow holes 25a may be located in the reaction part 3, or a circular or elongated overflow hole 25a may be added to the reaction part 3 based on the existing overflow holes 25a.

The reaction part 3 includes a reaction chamber 3b, and the reaction chamber 3b is provided in correspondence with a portion of the test paper which extends out after the test paper fixing member 4. The upper part of the reaction part 3 is a hollowed-out structure which is hollowed out, or only comprises a guide part for arranging two sides of a track for guiding the insertion of the test paper fixing piece 4. The reaction part 3 does not or incompletely shield the upper end and the middle part of the test paper 5, thereby avoiding influencing observation. The lower reaction chamber 3b has a detection groove 31, the detection groove 31 is used for accommodating the test paper 5, and the detection groove 31 may be one or more. The length of the protruding test strip 5, i.e., the length of the test strip 5 longer than the test strip holder 4, is approximately the same as the height of the test groove 31 so that the bottom of the test strip contacts the lower end of the test groove 31.

The housing 6 with overflow function comprises a first portion 61 cooperating with the filling part 2 and a second portion 62 cooperating with the reaction part 3, the first portion 61 comprising a housing having a diameter larger than the outer diameter of the filling part 2, the second portion 62 comprising a housing having a size larger than the reaction part 3 to completely accommodate the filling and reaction vessel 2 a. The second portion 62 of the housing 6 has a transparent viewing window to facilitate viewing of the reaction of the test strip 5. In some embodiments, the housing 6, the filling and reaction vessel 2a are all made of transparent material, and the use of transparent material provides the effect of having a viewing window in the housing 6 for viewing by the user. The housing 6, the liquid feeding and reaction vessel 2a and the test paper fixing member 4 may be manufactured by integrally molding.

The bottom surface of the housing 6 is a flat bottom surface and the upper and lower dimensions or diameters of the first portion 61 may be equal, i.e. the upper and lower portions may be identical or similar in shape, in view of this, the flat and large contact surface characteristics allow the device to stand upright on a table top without tipping during normal use.

Referring to fig. 7, after the liquid detecting apparatus is installed, the bottom of the housing 6 is lower than the bottom of the liquid feeding and reaction vessel 2a so that the liquid flowing out of the overflow hole 25a can flow into the housing 6 by gravity. In this embodiment, one or more lifting support structures 7 are provided inside the housing 6. The lifting support structure 7 is in this embodiment a plurality of cross support columns. The top surface of the cross support column is level, and the cross support column is used for lifting and supporting the liquid adding and reaction container 2a, limiting the liquid adding and the reaction container 2a to be level with the top surface of the device, and facilitating sealing by using the sealing piece 1. In other embodiments, the structure of the lifting support structure 7 is not limited, and all schemes capable of lifting and limiting the liquid feeding and the reaction vessel 2a are within the scope of the present application.

The lifting support structure 7 is made up from the inner surface of the housing 6 and may be formed integrally with the housing. The advantage of the arrangement of the lifting support structure 7 is that on the one hand the filling and reaction vessel 2a is raised to form a liquid space for overflow between the bottom of the shell 6 and the bottom of the filling and reaction vessel 2a, and on the other hand the filling and reaction vessel 2a, the test paper fixing piece, the test paper of different heights can be matched. The lifting support structure 7 can be arranged as an independent replaceable part, and when the lifting support structure 7 is applied to liquid adding and reaction containers 2a with different heights and test papers with different lengths, the lifting support structure 7 can be replaced, so that the flexibility of the application is improved. The lifting support structure 7 may also be a height-adjustable component, for example, the height of which may be adjusted by means of two-stage or three-stage drawing. When the test paper is applied to the liquid adding and reaction container 2a with different heights and test papers with different lengths, the lifting support structure 7 is pulled to adjust the height, so that the flexibility of the application is improved.

Fig. 1, 2, 4 and 5 show two test strip holders 4 arranged in opposite directions. In this embodiment, two test strip holders 41 and 42 are reversely installed into the guide portion 32 of the upper portion of the reaction portion 3, and the bottom of the guide portion 32 is provided with a supporting stopper 33, which may be a protrusion, to prevent the test strip holder 4 from being reversely installed while supporting and clamping the test strip holder 4.

The reagent sample can be directly poured into the liquid adding part 2 through an auxiliary tool (such as a sample collector of a common urine cup or a saliva collector and the like), the reagent sample in the liquid adding part 2 slowly flows into the reaction part 3, and when the sample is artificially added, the reagent sample possibly flows into the bottom of the shell 6 with an overflow effect along the overflow hole 25a when the sample amount required by the reaction is more than the sample amount, so that the sample reagent can be read out in the device normally.

When the device is used, firstly, the sealing piece 1 at the position of the liquid adding part 2 is lifted, liquid to be detected collected by an auxiliary tool (such as a urine cup or a saliva collector) is poured into the liquid adding cavity 2b, and a sample slowly enters the reaction cavity 3b from the bottom of the liquid adding cavity 2b along a flow channel;

secondly, the liquid to be measured in the liquid adding cavity 2b is discharged into the bottom of the pair of outer shells 6 with overflow function through the overflow holes 25a, and the sealing piece 1 at the upper part of the liquid adding cavity 2b is sealed;

thirdly, the test paper 5 in the reaction cavity 3b reacts with the liquid to be tested flowing into the bottom of the reaction cavity 3b;

then, after standing for a while, for example, for 3 to 8 minutes, the user can observe the detection result of each detection reagent strip through the transparent observation window.

According to the method, a certain amount of body fluid sample to be detected is directly poured, a part possibly added in the manual operation process is discharged to the bottom of the shell 6 with the overflow function, so that a proper amount of body fluid sample to be detected smoothly enters the reaction part 3 to react with the test paper 5, and detection is automatically started; through the shape design of big-end-up of liquid feeding portion 2, the condition that can splash to the upper segment in test paper 5 when avoiding directly pouring into the body fluid sample that awaits measuring leads to probably detecting inaccurately, makes the detection very convenient and need not very accurate operation. In addition, the liquid adding part 2 and the reaction part 3 are arranged separately, so that liquid adding and detection become two independent parts, and the purpose of automatic detection can be realized by utilizing a separate liquid adding machine, a separate detection machine or personnel to process respectively.

The embodiment of the application provides a multi-joint inspection reagent reaction device for body fluid detection, which can detect body fluid (saliva, urine and the like). The device has convenient to carry, and the structure is exquisite, and easy operation is quick, detects that the project can multiple combination, and is multiple, and the disposable body fluid volume of gathering characteristics such as less.

The multi-joint inspection reagent reaction device for body fluid detection can be used for simultaneously and rapidly detecting a plurality of projects, can be widely applied to the field of fluid rapid detection, such as drug abuse detection, drug rapid detection and the like, and can be widely applied to sites such as drug administration criminal police on-site law enforcement, drug withdrawal stations, hospitals, physical examination centers, families and the like.

Through the structural design of this application, liquid to be measured and reaction chamber position separate but communication structure, can be with unnecessary liquid to be measured (the liquid of unavoidable excess scope volume in the manual operation) is discharged into the shell bottom that has the overflow effect, keeps normal multiple detection reaction required liquid sample's less volume, takes place predetermined reaction with the test strip, automated inspection result.

While preferred embodiments of the present embodiments have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the present application.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.

The foregoing has described in detail a liquid detection device provided herein, and specific examples have been presented herein to illustrate the principles and embodiments of the present application, the above examples being provided only to assist in understanding the methods and core ideas of the present application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims (10)

1. A liquid detection device, comprising:

the liquid adding and reacting container (2 a) comprises a liquid adding part (2) and a reacting part (3) which are arranged independently and communicated with each other, wherein the liquid adding part (2) forms a liquid adding cavity (2 b); the reaction part (3) forms a reaction cavity (3 b) and is internally provided with a detection groove (31) for accommodating a plurality of test papers (5), and the lower part of the liquid adding and reaction container (2 a) is provided with an overflow hole (25 a);

the test paper fixing piece (4) is used for fixing the plurality of test papers and is accommodated in the liquid adding and reacting container (2 a), and after the test papers (5) are fixed, the lower ends of the test papers (5) can be inserted into the detecting groove (31) to react with liquid to be detected;

the shell (6) is used for accommodating the liquid adding and reacting container (2 a), the test paper fixing piece (4) and the test paper (5), the inner space of the shell (6) is communicated with the overflow hole (25 a), and the shell (6) is used for receiving liquid discharged by the overflow hole (25 a); and

and a sealing piece (1) for sealing the shell.

2. The liquid detection device according to claim 1, wherein the liquid adding portion (2) and the reaction portion (3) are arranged side by side and communicate with each other.

3. The liquid detection device according to claim 1, wherein the overflow hole (25 a) is provided at a lower portion of the liquid charging portion (2) and communicates with the liquid charging chamber (3 a); or the overflow holes (25 a) are arranged in the reaction part (3) and communicated with the reaction cavity (3 b), or the overflow holes are multiple and are respectively arranged in the liquid adding part (2) and the reaction part (3).

4. The liquid detection device according to claim 1, characterized in that the housing (6) has a transparent viewing window capable of exposing the test paper.

5. The liquid detection device according to claim 1, characterized in that the height of the bottom of the housing (6) is lower than the height of the bottom of the filling and reaction vessel (2 a).

6. The liquid detection device according to claim 5, characterized in that the housing (6) has at least one lifting support structure for lifting and supporting the liquid feeding and reaction vessel (2 a).

7. The liquid detection apparatus of claim 6, wherein the at least one lift support structure is a height adjustable structure.

8. The liquid detection device according to claim 1, wherein the size of the liquid filling opening at the upper part of the liquid filling part (2) is larger than the size of the liquid outlet at the lower part, and the liquid filling part (2) is tightened from top to bottom to form a drainage channel.

9. The liquid detection apparatus according to claim 1, wherein the reaction part (3) further includes guide parts (32) provided on both sides above the reaction chamber (3 b) for guiding insertion of one or more of the test paper holders (4).

10. The liquid detection device according to claim 9, characterized in that the bottom of the guide portion (32) is provided with a supporting and limiting member (33) for supporting and limiting the test paper fixing member (4).

Images