WO2015135266A1

WO2015135266A1 - Test strip sample pouring tank, drying analyzer and sample pouring and cleaning method thereof

Info

Publication number: WO2015135266A1
Application number: PCT/CN2014/080940
Authority: WO
Inventors: 丁建文; 周丰良
Original assignee: 爱威科技股份有限公司
Priority date: 2014-03-11
Filing date: 2014-06-27
Publication date: 2015-09-17
Also published as: CN103808947B; CN103808947A

Abstract

A test strip sample pouring tank (3) comprises a reaction tank (34) for containing a test strip (4); an openable and closeable negative-pressure cavity (32) communicated with the reaction tank (31) is arranged below the reaction tank (31); a drainage hole (33) for communication between the reaction tank (31) and the negative-pressure cavity (32) is arranged therebetween. The test strip (4) is placed in the reaction tank (31), the test strip (4) is completely soaked in a sample through sample pouring after the negative-pressure cavity (32) is closed, and after the test strip (4) is in full contact with the sample, the negative-pressure cavity (32) is opened to suck the sample into the negative-pressure cavity (32) via the drainage hole (33), and thus the sample within the test strip sample pouring tank (3) is removed by suction. Through the method of soaking the test strip (4) completely, the sample reacts with the test strip (4) accurately and sufficiently; furthermore, by means of the arrangement of the negative-pressure cavity (32), the sample is entirely removed so that erroneous results of detection of the test strip (4) caused by an inaccurate sample application, a missing sample application, excessive sample pouring and the like can be completely avoided, and therefore, the purpose of improving the accuracy of detection is realized. Also disclosed are a drying analyzer and a sample pouring and cleaning method thereof. The drying analyzer comprises a sampling needle (1) and the test strip sample pouring tank (3).

Description

Test strip rinsing tank, drying analyzer and leaching and cleaning method thereof

This application claims priority from the Chinese Patent Application submitted by the China Patent Office on March 11, 2014, with the application number 201410087595.9, and the invention titled "Test Strips, Drying Analyzers, and Leaching and Cleaning Methods" The entire contents of which are incorporated herein by reference.

Technical field

The invention relates to the technical field of medical in vitro diagnostic equipment, in particular to a test strip rinsing tank, a drying analyzer and a rinsing and cleaning method thereof. Background technique

In the in vitro diagnostic equipment for the test strips, there are three types of test strips and sample processing methods.

The first type of treatment is to use a precision syringe to control the amount of spotting, and directly place the drop of the sample on the test strip of each item attached to the test strip. This type of processing method has a simple structure, and the sample can be completed by using a sample needle that can be moved up and down and the precision syringe, and since the sample is added to each test paper pad one by one, the between the test paper pads is avoided. Mutual pollution.

However, the first type of loading method also has many defects. First, one-to-one loading adds a lot of mechanical actions to the instrument, thereby reducing the detection speed. In addition, long-term loading causes mechanical wear to affect the positioning accuracy of the needle. The urine is not added to the test paper pad to affect the result.

Second, in order to control the amount of urine specimens on each test paper pad in the spotting method, the diameter of the needle is small (0.6mm or less). For such a small needle diameter, due to the urine The occurrence of crystallization often causes the clogging of the sample needle to cause the instrument to malfunction, or the uneven loading of the sample, resulting in insufficient sample amount of the test paper pad and false negative.

Third, there is a certain error in the positioning of the sample needle and the test paper belt. This kind of error may cause the sample not to be accurately added to the center position of each test paper pad, resulting in uneven reaction of the test paper pad and insufficient results. .

Fourth, in the actual clinical test, it is found that each person's sample has different consistency and viscosity. Different samples may cause the needle to hang water, and the drop may not drop, leading to leakage, and even some detection items appear. The serious consequences of misjudgment. The second type of treatment is to use a precision syringe to control the leaching and deposit the sample on the test strip in the disposable test strip. This disposable test strip has a small amount of sample buffer space inside, which can be compared with the spotting method. . Enter more samples.

The treatment method of the treatment method is simple, and the leakage spot can be reduced to a certain extent, and the disposable test paper tank is used at the same time, and the test paper tank is not required to be cleaned.

However, due to the limited internal space of the disposable test strip, there is an overflow when there are too many samples, and when there are too few, there is a problem of insufficient leaching. In the actual clinical test, it is impossible for the sample to be continuously drained from the top of the test strip when the sample is leached. Due to the difference in viscosity of different samples, some test pieces are not sufficiently immersed and the reaction is not good. Some items have too many test pieces. When testing, there is still sample liquid on the test block, which forms a water film reflection, which does not recognize the true color, and the result is not accurate.

In the third type of treatment, the sample is directly immersed in a test tube containing the sample, and then the test strip is taken out and the test strip is transferred to the test portion. The processing method has a simple structure and no leaks.

However, in actual clinical tests, the test strip has a certain length. To ensure that it is completely immersed, it must be ensured that the sample size must be large. It is not controllable in actual operation. I don't know if it is completely soaked, if the test strip does not. Being completely immersed will cause some items above to be inaccurate. When the test strip is taken out after soaking, there are many residual samples on the test strip, which will spill around and affect the hygiene of the instrument.

Therefore, how to ensure the accurate and sufficient response of the test strip to improve the detection accuracy has become an important technical problem to be solved by those skilled in the art. Summary of the invention

The embodiment of the invention provides a test strip splicing groove to ensure that the reaction of the test strip is accurate and sufficient to improve the detection accuracy; the invention also provides a drying analyzer; the invention also provides a Drying analyzer leaching and cleaning methods.

To achieve the above object, the present invention provides the following technical solutions: a test strip rinsing tank includes a reaction tank for accommodating a test strip; an openable and closable negative pressure chamber communicating with the reaction tank is disposed under the reaction tank; the reaction tank and the negative chamber A drainage hole connecting the two is provided between the pressure chambers.

Preferably, in the test strip sprinkling groove, the support end surface of the reaction tank is provided with a plurality of protrusions for the test strip, and the plurality of recessed recesses communicate with each other.

Preferably, in the above-mentioned test strip sprinkling groove, the drain hole is provided in the recess between any two of the projections.

Preferably, in the test strip sampling tank, a plurality of the drainage holes arranged along the width direction of the reaction tank are disposed between any two of the protrusions, and the drainage holes communicate with the reaction tank And the negative pressure chamber, wherein the drainage hole is provided with a plurality of radial thin grooves at an inlet communicating with the reaction tank.

Preferably, in the test strip sampling tank, three of the drainage holes are arranged between the two of the protrusions along the width direction of the reaction tank, and the diameter of the drainage hole is 0.5 mm. -1.5mm.

Preferably, in the test strip sumping tank, a plurality of pipe joints connected thereto are disposed at a bottom of the negative pressure chamber, and a residual liquid lead-out pipe is connected to the pipe joint, and the remaining liquid is provided on the pipeline There is a solenoid valve for controlling its on-off and a waste liquid pump for providing drainage power, and a waste liquid tank is disposed at the end of the remaining liquid outlet pipe.

A drying analyzer comprising a sample needle and a test strip reaction tank, wherein the test strip reaction tank is a test strip rinsing tank according to any one of the above items.

Preferably, in the above drying analyzer, a cleaning tank for accommodating the cleaning liquid and a test tube for accommodating the sample, and a cleaning liquid piping system connected to the sampling needle through the one-way valve are further included.

Preferably, in the above drying analyzer, the first movement mechanism for controlling the horizontal and vertical movement of the sample needle in the direction of the test strip, and the driving of the test strip to the reaction tank and the test strip A second movement mechanism of the detection unit.

A method for rinsing and cleaning a dry analyzer, comprising the steps of:

1) The first motion mechanism drives the sample needle to the position of the test tube, and after quantitatively inhaling the sample in the test tube, the sample needle is driven to the top of the sample strip of the test strip on which the dried test strip has been placed; 2) The first motion mechanism drives the sample needle to move along the length of the test strip, and at the same time, the sample needle is hooked out to the test strip in the test strip at the set speed;

3) After the test strip fully absorbs the sample, open the solenoid valve and the waste liquid pump, and take out the remaining sample in the test strip rinsing tank;

4) the second moving mechanism drives the test strip after absorbing the sample to the test strip detecting unit to detect;

5) Close the solenoid valve and waste pump, and control the cleaning fluid to flow from the sample needle into the test strip rinsing tank. After cleaning for a predetermined time, turn on the waste pump and solenoid valve to remove the cleaning solution to complete the test strip rinsing tank. Cleaning.

Preferably, in the above-mentioned drying analyzer rinsing and cleaning method, after the step 2), the cleaning step is further included, and the first moving mechanism drives the sample needle to move to the cleaning tank to drain the residual sample in the sample needle and carry out the sputum. Cleaning of the inner and outer walls of the sample needle, the cleaning step is performed simultaneously with steps 3) and 4). After the cleaning is completed, the first motion mechanism drives the sample needle to the top of the test strip and rotates to step 5).

The test strip splicing tank provided by the invention comprises a reaction tank for accommodating the test strip; the openable and closed negative pressure chamber connected with the reaction tank is arranged below the reaction tank; and the reaction tank and the negative pressure chamber are provided with communication The drainage holes of both. The test strip is placed in the reaction tank. When the test strip is used to pour the test strip, the negative pressure chamber is closed, and then the sample is placed in the reaction tank so that the test strip is completely soaked by the sample. After the test strip is completely immersed, the negative pressure chamber is opened, and the sample in the reaction tank is completely extracted into the negative pressure chamber through the drainage hole, thereby discharging the sample in the rinsing tank and completely immersing through the test strip. The sample and the test strip are reacted accurately and fully, and the sample is completely excluded by the setting of the negative pressure chamber, thereby completely avoiding the wrong result of the test strip detection caused by spotting, leaking, excessive leaching and the like. , to achieve the purpose of improving the accuracy of detection. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

Figure 1 is a front cross-sectional view of a test strip splicing groove provided by the present invention; Figure 2 is a plan view of Figure 1;

FIG. 3 is a schematic structural view of a drying analyzer provided in the present application. detailed description

The embodiment of the invention discloses a test strip splicing groove, which ensures the reaction of the test strip is accurate and sufficient to improve the detection accuracy; the invention also provides a drying analyzer; the invention also provides a Drying analyzer leaching and cleaning methods.

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without the creative work are all within the scope of the present invention.

1 is a front cross-sectional view of a test strip splicing groove provided by the present invention; FIG. 2 is a top view of FIG. 1; and FIG. 3 is a schematic structural view of the dry chemistry analyzer provided in the present invention.

The invention provides a test strip sump, comprising a reaction tank 31 for accommodating a test strip; below the reaction tank 31, an openable and negative pressure chamber 32 communicating with the reaction tank 31 is provided; the reaction tank 31 and A drain hole 33 communicating between the negative pressure chambers 32 is provided. The test strip is placed in the reaction tank 31, and when the test strip is sprinkled by the test strip, the negative pressure chamber 32 is closed, and then the sample is placed in the reaction tank 31, so that the test strip is sampled. After completely immersing, after the test strip is completely immersed, the negative pressure chamber 32 is opened, and the sample in the reaction tank 31 is completely extracted into the negative pressure chamber 32 through the drainage hole 33, thereby extracting the sample in the rinsing tank 3 and passing through The method of completely immersing the test strip makes the sample and the test strip react accurately and fully, and completely eliminates the sample through the setting of the negative pressure chamber, thereby completely avoiding the occurrence of inaccurate spotting, leaking points, excessive leaching, etc. The wrong result of the test strip detection has achieved the purpose of improving the accuracy of the test.

In a specific embodiment of the present invention, the support end surface of the reaction tank 31 is provided with a plurality of protrusions 36 of the overhead test strip, and the plurality of recesses 37 between the plurality of protrusions 36 are in communication with each other. The test strip has a long strip structure, and the support end surface of the reaction tank is a strip reaction tank adapted to the strip structure of the test strip. The support end surface of the reaction tank 31 is provided with a plurality of protrusions 36 of the overhead test strip, and the support end surface of the reaction tank 31 is the inner bottom surface of the reaction tank 31, and the reaction tank 31 supports the test strip while accommodating the reaction sample. The test strip is erected by the protrusion 36, so as to prevent the test strip from directly adhering to the inner bottom surface of the reaction tank 31, and the sample strip is attached to the support end surface of the reaction tank 31 during the process of avoiding the sample discharge, so that the sample cannot be sampled. Completely discharged. Reaction tank 31 A plurality of protrusions 36 are disposed therein, and a plurality of protrusions 36 are formed between the protrusions 36. The recesses 37 communicate with each other to facilitate the flow of the sample and the discharge to the drainage holes 33. The projection 36 is a support structure of a strip-shaped structure arranged along the width direction of the reaction vessel 31 to achieve stable support and limit of the test strip.

In a specific embodiment of the invention, a recess 33 is provided in the recess 37 between any two projections 36. A plurality of protrusions 36 for erecting the test strips are disposed in the reaction tank 31, corresponding to the plurality of protrusion structures, and between any two protrusions 36, drainage is provided between both ends of the reaction tank 31 and the protrusions 36. The hole 33, after the negative pressure chamber 32 is opened, the sample can flow out from the corresponding position of the drainage hole 33, thereby speeding up the discharge speed of the sample, and also facilitating the complete discharge of the sample at different positions of the test strip, and avoiding the test caused by excessive leaching. The wrong result of the strip detection.

In a specific embodiment of the present invention, a plurality of drainage holes 33 are arranged between the two protrusions 36 along the width direction of the reaction tank 37. The drainage holes 33 communicate with the reaction tank 31 and the negative pressure chamber 32, and the drainage holes 33 A plurality of radially narrow grooves 35 are provided at the entrance of the communication reaction tank 31. The reaction tank 31 has a certain groove width. In order to further increase the discharge rate of the sample in the reaction tank 31, the drainage holes 33 are also provided in plurality in the width direction of the reaction tank 31, thereby further increasing the velocity of the sample flowing into the negative pressure chamber. Further, the reaction tank is further provided with a plurality of narrow grooves 35 communicating with the inlet of the drainage hole 33 at the side of the reaction tank 31, and the narrow groove 35 communicates with the drainage hole 33 and is radially distributed in the reaction tank 31 with the drainage hole 33 as an origin. Specifically, the narrow groove 35 is radially connected to the drainage hole, so that the sample in the reaction tank 31 can be concentrated to flow out through the flow guiding hole 33 to ensure complete discharge of the reaction sample.

In the present embodiment, any two projections 36 are provided with three drainage holes 33 arranged along the width direction of the reaction vessel 31, and the diameter of the drainage holes 33 is 0.5 mm - 1.5 mm. In accordance with the width of the reaction tank 31, the drainage holes 33 are provided in three, and are covered with a plurality of fine grooves 35 in the width direction of the reaction tank 31, which is more advantageous for the discharge of the sample. The drain hole 33 is provided as a through hole of 0.5 mm to 1.5 mm. When no negative pressure is provided in the negative pressure chamber 32, the sample or the cleaning liquid in the reaction tank 31 can be held in the reaction tank 31 by its own tension to ensure the sample and the test. Adequate contact with the strip, or sufficient contact between the cleaning solution and the rinsing tank. When a negative pressure is supplied in the negative pressure chamber 32, the excess sample or the cleaning liquid can flow the drain hole 33 to the negative pressure chamber 32 and be cleaned. Preferably, the drain hole 33 is set to lmm.

Of course, the number and size of the drainage holes 33 can be set according to the actual application environment of the test strips, and set according to the following principles. When the negative pressure chamber has no negative pressure, the excess sample liquid will not be automatically reacted. The groove 31 leaks into the negative pressure chamber 32, on the one hand, ensuring sufficient contact with the test strip after the sample is poured in. And reaction, on the other hand, when cleaning the rinsing tank, it can ensure that the cleaning liquid component contacts the rinsing tank to ensure the cleaning effect; when the negative pressure chamber 32 generates negative pressure, the excess sample liquid should be quickly poured into the negative pressure chamber. 32.

In a specific embodiment of the present invention, the bottom of the negative pressure chamber 32 is provided with a plurality of pipe joints 34 communicating therewith, and the pipe joint 34 is connected with a residual liquid outlet pipe 7 , and the remaining liquid outlet pipe 7 is provided with a control passage thereof. The broken solenoid valve 5 and the waste liquid pump 6 for supplying the liquid power are provided with a waste liquid tank 8 at the end of the remaining liquid take-out line 7. After the negative pressure is supplied in the negative pressure chamber 32, the sample (sample liquid) or the cleaning liquid in the reaction tank 31 is discharged from the external air pressure through the drain hole 33 into the negative pressure chamber 32. A plurality of pipe joints 34 are disposed at the bottom of the negative pressure chamber 32, the pipe joint 34 is connected with the residual liquid outlet pipe 7, and the residual liquid pumping pipe 7 is provided with a solenoid valve 5 and a waste liquid pump 6, and the waste liquid pump 6 provides discharge samples or cleaning. The power of the liquid, the solenoid valve 5 controls the opening and closing of the waste liquid pump 6 and the negative pressure chamber 32, and the negative pressure of the negative pressure chamber 32 is supplied through the waste liquid pump 6, to provide working power, and the waste liquid is provided at the end of the remaining liquid lead line 7. Barrel 8, collecting waste liquid. Specifically, the waste liquid pump 6 may be a gas-liquid dual-purpose pump or a vacuum pump, and the electromagnetic valve 5 is a normally closed type electromagnetic valve. The pipe joint 34 can be provided in plurality or one, and can be designed according to the actual structure of the sprinkling groove.

Based on the test strip rinsing tank 3 provided in the above embodiment, the present invention also provides a drying analyzer comprising a squirting needle 1 and a test strip reaction tank, the test paper provided on the drying analyzer The strip reaction tank is the test strip sprinkling tank 3 provided in the above embodiment.

Since the drying analyzer uses the test strip rinsing tank 3 of the above embodiment, the advantageous effects of the drying analyzer by the test strip rinsing tank 3 can be referred to the above embodiment.

In a specific embodiment of the present invention, the cleaning tank 9 for accommodating the cleaning liquid and the test tube 2 for accommodating the sample are further included, and the sampling needle 1 is connected to the cleaning liquid piping system through the one-way valve. A sample is placed in the test tube 2, and the sample in the test tube 2 is sampled by the sample needle 1 and added to the rinsing tank 3. After the sample is loaded, the sample needle 1 is placed in the cleaning tank 9 to complete the cleaning of the inner and outer walls. The rinsing tank 3 needs to be cleaned after the test is completed to prevent the residual sample from being contaminated by the subsequent sample detection. After the sample needle 1 sucks the cleaning liquid, it moves to the top of the rinsing tank, and opens the cleaning liquid pipeline system to open The one-way valve cleaning liquid is discharged into the rinsing tank 3 by the sputum needle 1. After immersing for a period of time, the solenoid valve and the waste liquid pump are turned on, the waste liquid is discharged, and the cleaning rinsing tank is completed.

In a specific embodiment of the present invention, the first movement mechanism for controlling the horizontal and vertical movement of the sample needle 1 in the direction of the test strip 4, and the step of driving the test strip 4 to the reaction tank 31 and the test strip detecting unit are further included. Second sports agency. The first moving mechanism can drive the sample needle 1 to move horizontally and vertically in the direction of the test strip, and the horizontal movement causes the sample needle 1 to be displaced between the test tube 2 and the squirting groove 3, and the up and down movement can be sampled in contact with the sample, or close to The rinsing tank 3 completes the leaching work. The second moving mechanism moves the test strip into the reaction tank 31 of the rinsing tank 3, and the test strip 4 is in contact with the sample in the reaction tank 31, and the test strip 4 and the sample are sufficiently ensured by the closing and opening of the negative pressure chamber 32. The reaction is then discharged through the negative pressure chamber 32. After the test strip is sufficiently contacted and reacted with the sample, the second moving mechanism takes the test strip 4 to the test strip detection unit for detection and finally moves into the waste paper tray.

Based on the drying analyzer provided in the above embodiment, the present invention also provides a method for leaching and cleaning the drying analyzer, comprising the steps of:

1) The first motion mechanism drives the sample needle 1 to the position of the test tube 2, and after the sample in the test tube 2 is quantitatively sucked, the sample needle 1 is driven to the top of the test strip of the test strip 4 where the test strip 4 has been placed.

The first motion mechanism drives the sample needle 1 to move horizontally, moves to the position of the test tube 2, and sucks the appropriate amount of the sample in the test tube 2, and then drives the sample needle 1 to move back to the test strip stripping tank 3 where the dried test strip 4 has been placed. Above. The test strip is placed on the raised structure of the reaction tank.

2) The first motion mechanism drives the sample needle 1 to move along the length of the test strip, and at the same time, the sample needle 1 is discharged to the rinsing tank at a set speed. Then, the first moving mechanism drives the sample needle 1 to gradually shift along the length of the test strip. During the movement, the sample needle 1 discharges all the samples according to the preset speed to achieve full contact and reaction between the sample and the test strip.

3) Test strip 4 After fully absorbing the sample, open the solenoid valve 5 and the waste pump 6. Pull out the test strip and leave the remaining sample in the sample tank 3.

After waiting for the test strip 4 to sufficiently absorb the sample, the solenoid valve 5 and the waste liquid pump 6 are turned on, and the excess sample leaks into the negative pressure chamber 32 and is withdrawn to the waste liquid tank 8 via the waste liquid pump 6.

4) The second motion mechanism drives the test strip 4 after the sample is taken up to the test strip detection unit for detection. After the sample is discharged, the second moving mechanism moves the test strip 4 after absorbing the sample to the test strip detecting unit for detection, and obtains the processing result of the sample.

5) Close the solenoid valve 5 and the waste liquid pump 6, and control the cleaning liquid to flow from the sample needle 1 into the test strip sampling tank 3. After cleaning for a predetermined time, turn on the waste liquid pump 6 and the solenoid valve 5 to remove the cleaning liquid and complete the test. Cleaning of the strip rinsing tank 3.

After the sample liquid is completely discharged, the solenoid valve 5 and the waste liquid pump 6 are closed, and the liquid is connected to the sample needle 1 The washing liquid pipeline system starts to feed the cleaning liquid into the reaction tank 31. After a predetermined time, the cleaning liquid thoroughly cleans the inner wall of the reaction tank, and then opens the electromagnetic valve 5 and the waste liquid pump 6, and the cleaning liquid is pumped away to complete the test strip. The cleaning of the sample tank 3 prevents the residual of the sample in the reaction tank 31 and causes cross-contamination between the samples, thereby affecting the subsequent detection results.

In a specific embodiment of the present invention, after step 2), the cleaning step is further included, the first moving mechanism drives the sample needle 1 to the cleaning pool 9, evacuates the residual sample in the sample needle, and performs the inner and outer walls of the sample needle 1 Cleaning. The cleaning liquid pipeline system controls the sampling needle 1 to suck the cleaning liquid, closes the electromagnetic valve 5 and the waste liquid pump 6, and after moving to the top of the sampling tank 3, the cleaning liquid is discharged from the inside of the sampling needle 1 to the sampling tank 3, and the cleaning is scheduled. After the time, the waste liquid pump 6 and the solenoid valve 5 are turned on to remove the cleaning liquid to complete the cleaning of the test strip rinsing tank 3. By thoroughly cleaning the sputum needle 1, it is possible to avoid contamination of the sample during different sampling processes. The cleaning step of the sample needle is synchronously performed with steps 3 and 4, after the cleaning is completed, the first motion mechanism drives the sample needle to the top of the test strip sampling slot, and proceeds to step 5), so that each working portion is restored to The predetermined position is convenient for the normal operation of the test.

The method completely immersed the test strip of the manual standard operation by immersing the test strip in the rinsing tank, and sucks the excess sample on the test strip, thereby completely avoiding the spotting and the missing point. The erroneous result of the test strip detection caused by excessive leaching, etc., achieves the purpose of improving the detection accuracy.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded to the broadest scope of the principles and novel features disclosed herein.

Claims

Rights request

1. A test paper strip pouring tank, characterized in that it includes a reaction tank (31) for accommodating test paper strips; an operable tank connected to the reaction tank (31) is provided below the reaction tank (31) An opening and closing negative pressure chamber (32); a drainage hole (33) is provided between the reaction tank (31) and the negative pressure chamber (32) to connect the two.

2. The test strip sample pouring tank according to claim 1, characterized in that the support end surface of the reaction tank (31) is provided with a plurality of protrusions (36) that elevate the test strip, and a plurality of The recesses (37) of the protrusions (36) are connected with each other.

3. The test strip pouring tank according to claim 2, characterized in that the drainage hole (33) is provided in the recess (37) between any two of the protrusions (36).

4. The test strip pouring tank according to claim 3, characterized in that, between any two of the protrusions (36), there are a plurality of holes arranged along the width direction of the reaction tank (31). The drainage hole (33) is connected to the reaction tank (31) and the negative pressure chamber (32), and the drainage hole (33) is connected to the entrance of the reaction tank (31). A plurality of radial fine grooves (35) are provided.

5. The test paper strip pouring tank according to claim 4, characterized in that three protrusions (36) arranged along the width direction of the reaction tank (31) are provided between any two of the protrusions (36). The drainage hole (33) has a diameter of 0.5mm-1.5mm.

6. The test strip pouring tank according to claim 1, characterized in that the bottom of the negative pressure chamber (32) is provided with a plurality of pipe joints (34) connected thereto, and the pipe joints (34) The residual liquid lead-out pipeline (7) is connected to the rear, and the residual liquid lead-out pipeline (7) is provided with a solenoid valve (5) that controls its on-off and a waste liquid pump (6) that provides liquid introduction power. A waste liquid bucket (8) is provided at the end of the liquid lead-out pipeline (7).

7. A drying analyzer, including a sample needle (1) and a test strip reaction tank, characterized in that the test strip reaction tank is a test strip according to any one of claims 1-6 Shower tank (3).

8. The drying analyzer according to claim 7, further comprising a cleaning tank (9) for accommodating cleaning fluid, a test tube (2) for accommodating samples, and a sample needle (1) Cleaning fluid pipeline system connected through one-way valve.

9. The drying analyzer according to claim 8, further comprising: controlling the A first movement mechanism that moves the sample needle (1) horizontally and up and down along the direction of the test strip, and a second movement mechanism that drives the test strip (7) to the reaction tank (31) and the test strip detection unit.

10. A method for sample pouring and cleaning of a drying analyzer, which is characterized by including the steps:

1) The first movement mechanism drives the sampling needle to the test tube position. After quantitatively sucking in the sample in the test tube, it drives the sampling needle to the top of the test strip sample bath where the dried test strip has been placed;

2) The first movement mechanism drives the sample needle to move along the length direction of the test strip, and at the same time, the sample needle evenly discharges the sample into the test strip sample slot at a set speed;

3) After the test paper strip fully absorbs the sample, open the solenoid valve and waste liquid pump, and draw out the remaining sample in the test strip sample bath;

4) The second movement mechanism drives the test strip after absorbing the sample to the test strip detection unit for detection;

5) Close the solenoid valve and the waste liquid pump, and control the cleaning liquid to flow from the sample needle into the test strip pouring tank. After cleaning for a predetermined time, open the waste liquid pump and the solenoid valve to draw away the cleaning liquid to complete the test strip pouring tank. Clean.

11. The drying analyzer sample pouring and cleaning method according to claim 10, characterized in that the step 2) further includes a cleaning step, in which the first movement mechanism drives the sample needle to move to the cleaning pool to empty the sample. The sample remains in the needle and the inner and outer walls of the sample needle are cleaned. The cleaning step is performed simultaneously with steps 3) and 4). After the cleaning is completed, the first movement mechanism drives the sample needle to the top of the test paper strip sample pouring tank and Go to step 5).