Testing system and testing method of full-automatic blood coagulation tester

Abstract

The invention discloses a testing system and a testing method of a full-automatic blood coagulation tester, and relates to the field of blood coagulation testers, the testing system of the full-automatic blood coagulation tester comprises a testing table and a box body, the box body is fixedly installed at the top end of the testing table, an anti-blocking assembly is installed on the side wall of one side of a sample adding needle, and the anti-blocking assembly is fixedly installed on the side wall of the other side of the sample adding needle. A leakage-proof assembly is mounted on the other side of the sample adding needle, and an adsorption assembly is mounted in the box body. The adsorption assembly is arranged, the output end of the motor drives a reciprocating lead screw to rotate, the reciprocating lead screw rotates to drive a threaded sleeve and a friction block to slide in a reciprocating mode in the horizontal direction, the friction block and an adsorption plate continuously rub to generate electrostatic interaction, and therefore impurities scattered in the box body are adsorbed in a concentrated mode; and only impurities at the adsorption plate need to be cleaned, so that the situation that workers still need to clean scattered impurities in the box body after subsequent testing is completed is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coagulation testers, in particular to a testing system and a testing method of a full-automatic coagulation tester. Background Art

[0002] The fully automatic coagulation tester is a medical electronic instrument used to measure the coagulation state of human blood and the risk of thrombosis. It is widely used in clinical diagnosis, treatment and scientific research. With the advancement of science and technology, the detection methods of thrombosis and hemostasis are also constantly developing and improving, providing a more convenient, accurate and reliable basis for clinical diagnosis and treatment.

[0003] For example, a rotary dosing type fully automatic coagulation tester proposed in announcement number CN102520200B includes a test system, a rotary dosing system, an inclined reagent refrigeration system, a cleaning system, and a chassis. The test system integrates four test channels and can work simultaneously; the rotary dosing system includes a rotary dosing arm module, a dosing needle module with constant temperature heating and liquid level detection functions, and a lead screw linear guide rail injection control system; the inclined reagent refrigeration system adopts an inclined installation method for reagent bottles, which saves reagents and avoids waste; the cleaning system includes an overflow cleaning module and a dual-channel peristaltic liquid inlet and discharge system. The tester has the advantages of accurate testing, precise dosing, reagent saving, long reagent storage time, constant temperature heating of the test system, high detection efficiency, simple operation, good cleaning effect, safe and efficient liquid discharge, and low noise.

[0004] At present, after the sampling needle is cleaned after use, some residual impurities will still remain. If it is not cleaned in time, it will become clogged over time, affecting the normal aspiration or discharge operation of the sampling needle. In addition, if the sampling needle is clogged, it will affect the normal aspiration or discharge process, resulting in dripping. In addition, if there is a sealing problem at the connection of the sampling needle, dripping will also occur, resulting in errors in the sample aspiration amount, affecting the test results. Moreover, after the residual impurities inside the sampling needle are cleaned out, they will be scattered on the bottom wall of the box. After the test is completed, the staff still needs to clean it, which is more cumbersome.

[0005] In view of the above problems, a testing system and a testing method for a fully automatic coagulation tester are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a test system and a test method for a fully automatic coagulation tester. By adopting the present device, the problem that, after the sample adding needle is used and cleaned, some residual impurities will still exist, affecting the normal liquid aspiration or discharge operation, and the dripping problem will cause errors in the sample aspiration amount, affecting the test results, and the residual impurities inside the sample adding needle will be scattered on the bottom wall of the box after being cleaned, making it inconvenient to recover and clean.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a test system of a fully automatic coagulation tester, comprising a test bench and a box, wherein the box is fixedly installed on the top of the test bench, and a sample position, a test position and a reagent position are fixedly installed inside the box, and the sample position, the test position and the reagent position are arranged in an arc shape, a rotating loading arm is installed inside the box, a cavity is opened inside the rotating loading arm, an exhaust pipe is fixedly connected to the top of the cavity, a solenoid valve is installed inside the exhaust pipe, a loading needle is fixedly connected to the bottom wall of the cavity, an anti-blocking component is installed on the side wall of one side of the loading needle, a leak-proof component is installed on the other side of the loading needle, and an adsorption component is installed inside the box.

[0008] Furthermore, the anti-blocking component includes an installation box, which is an arc-shaped structure, fixedly connected to the side wall of the sampling needle, and the top wall inside the installation box is symmetrically fixedly connected with a first spring, two of the first springs are commonly fixedly connected with an arc-shaped plate, the top of the arc-shaped plate is symmetrically fixedly connected with a second magnet, and the top wall inside the installation box is symmetrically fixedly connected with the first magnet.

[0009] Furthermore, each of the first magnets is magnetically attracted to the adjacent second magnet, an electromagnet is fixedly connected to the inner top wall of the installation box, a permanent magnet is fixedly connected to the inner top wall of the curved plate, a fourth magnet is embedded and fixedly connected to the inner side wall of the curved plate, a scraper ring is slidably connected to the inside of the sampling needle, a third magnet is embedded and fixedly connected to the outer side wall of the scraper ring, and the third magnet and the fourth magnet are magnetically attracted to each other.

[0010] Furthermore, the leak-proof component includes a sealing box, which is an arc-shaped structure. The sealing box is fixedly connected to the side wall of the sampling needle, and the inner wall of the sealing box is fixedly connected to a partition, and the partition is symmetrically penetrated and slidably connected to a connecting rod, and the top ends of the two connecting rods are commonly fixedly connected to a first piston plate, and the bottom ends are commonly fixedly connected to a second piston plate.

[0011] Furthermore, the first piston plate and the second piston plate are both sealingly and slidingly connected to the inner wall of the sealing box, the top of the first piston plate is symmetrically fixedly connected to the second spring, the top of each second spring is fixedly connected to the inner top wall of the sealing box, and the side wall of the sealing box is fixedly connected to the first connecting pipe.

[0012] Furthermore, one end of the first connecting tube is fixedly connected to the air extraction tube, a one-way air outlet valve is installed inside the first connecting tube, the side wall of the sealing box is fixedly connected to a pressure relief tube, a one-way air inlet valve is installed inside the pressure relief tube, the first connecting tube and the pressure relief tube are both located above the partition, an exhaust hole is provided on the side wall of the sealing box, the exhaust hole is located between the first piston plate and the partition, and a groove is provided on the bottom wall of the sampling needle.

[0013] Furthermore, the trough body is an arc-shaped structure, an airbag is fixedly connected to the inside of the trough body, the side wall of the sealing box is fixedly connected to a second connecting pipe, one end of the second connecting pipe passes through the side wall of the trough body and is fixedly connected to the airbag, a control valve is installed inside the second connecting pipe, and the second connecting pipe is located below the partition.

[0014] Furthermore, the adsorption assembly includes an adsorption plate, which is fixedly connected to the bottom wall of the box body, and the side walls of the adsorption plate are symmetrically fixedly connected with fixed blocks, one of the side walls of the fixed blocks is fixedly connected with a motor, and the output end of the motor is fixedly connected with a reciprocating screw.

[0015] Furthermore, one end of the reciprocating screw penetrates and is rotatably connected to the side walls of the two fixed blocks, the side walls of the reciprocating screw are threadedly connected with a threaded sleeve, the side walls of the threaded sleeve are fixedly connected with a friction block, and the friction block slides against the side walls of the adsorption plate.

[0016] The present invention also discloses a testing method of a testing system of a fully automatic coagulation tester, and the specific operating steps are as follows: S1: A cavity is provided inside the rotating sample loading arm, and a vacuum pipe is fixedly connected to the top of the cavity. The vacuum pipe is externally connected to a negative pressure pump to generate negative pressure for liquid aspiration; S2: The electromagnet is energized to generate like magnetic poles between the adjacent end faces of the electromagnet and the permanent magnet. The generated magnetic repulsion is used to push the arc plate downward, so that the first magnet is separated from the second magnet. Under the elastic action of the first spring, the arc plate is pushed downward along the outer wall of the sample needle. The magnetic attraction between the third magnet and the fourth magnet can make the scraper ring move synchronously with the arc plate, so that the scraper ring scrapes along the inner wall of the sample needle to scrape off the impurities remaining on the inner wall of the sample needle. S3: Close the solenoid valve inside the air extraction pipe, and open the one-way air outlet valve and the control valve, and extract air through an external negative pressure pump, so that the air between the sealing box and the first piston plate is extracted along the first connecting pipe and the air extraction pipe. In this process, the pressure difference between the sealing box and the first piston plate is used to drive the first piston plate to move up, and the second piston plate is driven to move up synchronously through the connecting rod. The pressure between the second piston plate and the partition plate is increased, and the air in between enters the airbag along the second connecting pipe, so that the airbag expands. The fully expanded airbag can block the port of the sampling needle; S4: Close the one-way air outlet valve and open the one-way air inlet valve. Under the elastic action of the second spring, the first piston plate is pushed to reset and move, and the second piston plate is driven to move downward synchronously through the connecting rod, so that the second piston plate moves to the original position. The pressure difference between the second piston plate and the partition is used to draw the air inside the airbag back to between the second piston plate and the partition along the second connecting pipe, so that the airbag shrinks, thereby opening the sample needle port, and then the liquid discharge operation is performed; S5: The reciprocating screw is driven to rotate through the output end of the motor. The reciprocating screw is used to drive the threaded sleeve and the friction block to slide back and forth in the horizontal direction. The friction block and the adsorption plate are continuously rubbed to generate static electricity, thereby centrally adsorbing and collecting the impurities scattered inside the box.

[0017] Compared with the prior art, the present invention has the following beneficial effects: By setting an anti-blocking component, the electromagnet is energized so that like magnetic poles are generated between the adjacent end faces of the electromagnet and the permanent magnet, and the generated magnetic repulsion is used to push the arc plate downward, so that the first magnet is separated from the second magnet, and under the elastic action of the first spring, the arc plate is pushed to move downward along the outer wall of the sample needle, wherein the fourth magnet is embedded in the inner wall of the arc plate, and the magnetic attraction between the third magnet and the fourth magnet is large enough to enable the scraper ring to move synchronously with the arc plate, so that the scraper ring is used to scrape along the inner wall of the sample needle to scrape off the impurities remaining on the inner wall of the sample needle, and the impurities remaining in the sample needle are cleaned out in time each time to ensure that the sample needle can be used normally, and to avoid clogging of the sample needle after repeated use, which affects the normal suction and discharge operations; by setting an anti-leakage component, the closed Close the solenoid valve inside the air extraction pipe, and open the one-way air outlet valve and the control valve, and extract air through an external negative pressure pump, so that the air between the sealing box and the first piston plate is extracted along the first connecting pipe and the air extraction pipe. In this process, the pressure difference between the sealing box and the first piston plate is used to drive the first piston plate to move up. At this time, the second spring is in a compressed state, and the second piston plate is driven to move up synchronously through the connecting rod. As the second piston plate moves up, the pressure between the second piston plate and the partition increases. At this time, the air between the second piston plate and the partition enters the airbag along the second connecting pipe, causing the airbag to expand. The fully expanded airbag can seal the port of the sample adding needle. Even if there are problems later, the sample already absorbed in the sample adding needle will not drip, thereby ensuring the sample sampling amount, reducing errors, and improving the test accuracy. By setting up an adsorption component, the reciprocating screw is driven to rotate through the output end of the motor, and the reciprocating screw is used to drive the threaded sleeve and the friction block to slide back and forth in the horizontal direction. The friction block and the adsorption plate are constantly rubbed against each other to generate static electricity, thereby centrally adsorbing impurities scattered inside the box. After the test is completed, only the impurities on the adsorption plate need to be cleaned, which reduces the need for staff to clean the impurities scattered inside the box after the test is completed, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the box body in the present invention; Figure 3 It is a structural schematic diagram of the rotating sample loading arm in the present invention; Figure 4 is a cross-sectional view of the rotary sample loading arm of the present invention; Figure 5 It is a cross-sectional view of the anti-blocking component and the sample addition needle in the present invention; Figure 6 for Figure 5 A partial enlarged schematic diagram of part A; Figure 7 It is a structural schematic diagram of the anti-blocking component in the present invention; Figure 8 It is a schematic diagram of the structure of the anti-leakage component in the present invention; Fig. 9 for Figure 8 A partial enlarged schematic diagram of part B; Fig.10 It is a schematic diagram of the main structure of the anti-leakage component in the present invention; Fig.11 It is a schematic diagram of the structure of the adsorption component in the present invention.

[0019] In the figure: 1, test bench; 11, box; 2, sample position; 21, test position; 22, reagent position; 3, rotating sample arm; 31, suction pipe; 32, chamber; 33, sample needle; 34, solenoid valve; 4, anti-blocking component; 41, installation box; 42, first spring; 43, arc plate; 44, first magnet; 45, second magnet; 46, electromagnet; 47, permanent magnet; 48, scraper ring; 49, third magnet; 410, fourth magnet; 5, leak-proof component; 51, seal Box; 52, partition; 53, first connecting pipe; 54, one-way air outlet valve; 55, pressure relief pipe; 56, one-way air inlet valve; 57, tank body; 58, air bag; 59, second connecting pipe; 510, control valve; 511, second spring; 512, first piston plate; 513, connecting rod; 514, second piston plate; 515, exhaust hole; 6, adsorption assembly; 61, adsorption plate; 62, fixed block; 63, motor; 64, reciprocating screw; 65, threaded sleeve; 66, friction block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In order to solve the technical problem that after the sample adding needle 33 is used and cleaned, some residual impurities may still exist. If it is not cleaned in time, it will be blocked over time, affecting the normal liquid suction or liquid discharge operation of the sample adding needle 33, such as Figure 1 - Figure 7 As shown, the following preferred technical solutions are provided: The test system of the fully automatic coagulation tester includes a test bench 1 and a box 11. The box 11 is fixedly installed on the top of the test bench 1. A sample position 2, a test position 21 and a reagent position 22 are fixedly installed inside the box 11. The sample position 2, the test position 21 and the reagent position 22 are arranged in an arc shape. A rotating sample loading arm 3 is installed inside the box 11. A cavity 32 is opened inside the rotating sample loading arm 3. The top of the cavity 32 is fixedly connected with an exhaust pipe 31. The exhaust pipe 31 is externally connected to a negative pressure pump for generating negative pressure to aspirate liquid. A solenoid valve 34 is installed inside the exhaust pipe 31. A sample loading needle 33 is fixedly connected to the bottom wall of the cavity 32. The rotating sample loading arm 3 drives the sample loading needle 33 to rotate into the specimen test tube of the sample position 2, and the sample is sampled by the negative pressure pump. Then the rotating sample loading arm 3 is rotated to the test position 21 for loading, and finally added to the reagent position 22 for testing. An anti-blocking component is installed on one side wall of the sample loading needle 33 4. By setting the anti-blocking component 4, the electromagnet 46 is energized, so that the electromagnet 46 and the adjacent end faces of the permanent magnet 47 generate like magnetic poles, and the generated magnetic repulsion is used to push the arc plate 43 downward, so that the first magnet 44 and the second magnet 45 are separated, and under the elastic action of the first spring 42, the arc plate 43 is pushed to move downward along the outer wall of the sample needle 33, wherein the inner wall of the arc plate 43 is embedded with a fourth magnet 410, and the magnetic attraction between the third magnet 49 and the fourth magnet 410 is large enough to make the scraper ring 48 move synchronously with the arc plate 43, so that the scraper ring 48 scrapes along the inner wall of the sample needle 33 to scrape off the impurities remaining on the inner wall of the sample needle 33, and the impurities remaining in the sample needle 33 are cleaned out in time each time, so as to ensure that the sample needle 33 can be used normally, and avoid the sample needle 33 from being blocked after being used many times, which affects the normal liquid suction and discharge operations.

[0022] The other side of the sample injection needle 33 is provided with a leak-proof component 5. By setting the leak-proof component 5, the solenoid valve 34 inside the air extraction pipe 31 is closed, and the one-way air outlet valve 54 and the control valve 510 are opened. The air is extracted by an external negative pressure pump, so that the air between the sealing box 51 and the first piston plate 512 is extracted along the first connecting pipe 53 and the air extraction pipe 31. In this process, the pressure difference between the sealing box 51 and the first piston plate 512 is used to drive the first piston plate 512 to move upward. At this time, the second spring 511 is in a compressed state, and the connecting rod 5 13 drives the second piston plate 514 to move upward synchronously. As the second piston plate 514 moves upward, the pressure between the second piston plate 514 and the partition plate 52 increases. At this time, the air between the second piston plate 514 and the partition plate 52 enters the airbag 58 along the second connecting tube 59, causing the airbag 58 to expand. The fully expanded airbag 58 seals the port of the sampling needle 33. Even if there are problems later, the sample already absorbed in the sampling needle 33 will not drip, thereby ensuring the sample sampling amount, reducing errors, and improving test accuracy.

[0023] An adsorption component 6 is installed inside the box 11. By setting up the adsorption component 6, the reciprocating screw 64 is driven to rotate through the output end of the motor 63. The reciprocating screw 64 is rotated to drive the threaded sleeve 65 and the friction block 66 to slide back and forth in the horizontal direction. The friction block 66 and the adsorption plate 61 are continuously rubbed to generate static electricity, thereby centrally adsorbing and collecting impurities scattered inside the box 11. After the test is completed, only the impurities at the adsorption plate 61 need to be cleaned, which reduces the need for staff to clean the impurities scattered inside the box 11 after the test is completed, thereby improving the practicality of the device.

[0024] The anti-blocking component 4 includes a mounting box 41, which is an arc-shaped structure. The mounting box 41 is fixedly connected to the side wall of the sample injection needle 33, and the inner top wall of the mounting box 41 is symmetrically fixedly connected with a first spring 42. The two first springs 42 are commonly fixedly connected with an arc-shaped plate 43, and the top of the arc-shaped plate 43 is symmetrically fixedly connected with a second magnet 45, and the inner top wall of the mounting box 41 is symmetrically fixedly connected with a first magnet 44.

[0025] Each first magnet 44 is magnetically attracted to the adjacent second magnet 45, an electromagnet 46 is fixedly connected to the inner top wall of the installation box 41, a permanent magnet 47 is fixedly connected to the top wall of the arc plate 43, a fourth magnet 410 is embedded and fixedly connected to the inner side wall of the arc plate 43, a scraper ring 48 is slidably connected inside the sample adding needle 33, a third magnet 49 is embedded and fixedly connected to the outer side wall of the scraper ring 48, and the third magnet 49 and the fourth magnet 410 are magnetically attracted to each other.

[0026] In this solution, due to the deposition of fibrin filaments, reagent residues or other accumulation of impurities inside the sample needle 33, the sample needle 33 may be clogged with impurities. Even if it is rinsed, the sample needle 33 has a small diameter and some impurities may remain inside the sample needle 33. If it is not cleaned, the sample needle 33 will inevitably be clogged after multiple tests, affecting the normal aspiration or discharge operation. After each test is completed and rinsed, the electromagnet 46 is energized to generate like magnetic poles between the adjacent end faces of the electromagnet 46 and the permanent magnet 47. The generated magnetic repulsion is used to push the arc plate 43 downward, so that the first magnet 44 is separated from the second magnet 45, and the elastic action of the first spring 42 pushes the arc plate 43 downward. The arc plate 43 moves downward along the outer wall of the sample needle 33, wherein the inner wall of the arc plate 43 is embedded with a fourth magnet 410, and the magnetic attraction between the third magnet 49 and the fourth magnet 410 is large enough to make the scraper ring 48 move synchronously with the arc plate 43, and the scraper ring 48 is a thin ring with a light material, so that the scraper ring 48 moves synchronously with the arc plate 43, so that the scraper ring 48 scrapes along the inner wall of the sample needle 33 to scrape off the impurities remaining on the inner wall of the sample needle 33, and the impurities remaining inside the sample needle 33 are cleaned out in time each time, so as to ensure that the sample needle 33 can be used normally, and avoid the sample needle 33 from being blocked after being used multiple times, which affects the normal liquid suction and discharge operations; When the arc plate 43 moves to the lower limit, by changing the current direction of the electromagnet 46, opposite magnetic poles are generated between the electromagnet 46 and the permanent magnet 47, and the generated magnetic attraction force is used to make the arc plate 43 start to slide downward. At this time, the first spring 42 is in a compressed state until the first magnet 44 contacts the second magnet 45, wherein the magnetic attraction force between the first magnet 44 and the second magnet 45 is greater than the elastic force of the first spring 42, so that the arc plate 43 can be limited for subsequent cleaning of the inside of the sample needle 33. The current flow direction of the electromagnet 46 can also be changed multiple times for multiple cleanings, so that impurities will not accumulate inside the sample needle 33, ensuring that the sample needle 33 can normally perform liquid aspiration or liquid discharge operations.

[0027] In order to solve the technical problem that if the sample needle 33 is blocked, it will affect the normal liquid aspiration or discharge process, resulting in dripping. In addition, if there is a sealing problem at the connection of the sample needle 33, it will also cause dripping, resulting in errors in the sample aspiration amount and affecting the test results, such as Figure 8-Figure 10 As shown, the following preferred technical solutions are provided: The leak-proof component 5 includes a sealing box 51, which is an arc-shaped structure. The sealing box 51 is fixedly connected to the side wall of the sampling needle 33. The inner wall of the sealing box 51 is fixedly connected to a partition 52. The partition 52 is symmetrically penetrated and slidably connected to a connecting rod 513. The top ends of the two connecting rods 513 are fixedly connected to a first piston plate 512, and the bottom ends are fixedly connected to a second piston plate 514.

[0028] The first piston plate 512 and the second piston plate 514 are both sealingly and slidingly connected to the inner wall of the sealing box 51, the top of the first piston plate 512 is symmetrically fixedly connected to the second spring 511, the top of each second spring 511 is fixedly connected to the inner top wall of the sealing box 51, and the side wall of the sealing box 51 is fixedly connected to the first connecting pipe 53.

[0029] One end of the first connecting tube 53 is fixedly connected to the exhaust tube 31, a one-way air outlet valve 54 is installed inside the first connecting tube 53, a pressure relief tube 55 is fixedly connected to the side wall of the sealing box 51, a one-way air inlet valve 56 is installed inside the pressure relief tube 55, the first connecting tube 53 and the pressure relief tube 55 are both located above the partition 52, an exhaust hole 515 is provided on the side wall of the sealing box 51, the exhaust hole 515 is located between the first piston plate 512 and the partition 52, and a groove 57 is provided on the bottom wall of the sampling needle 33.

[0030] The groove body 57 is an arc-shaped structure, and an airbag 58 is fixedly connected to the inside of the groove body 57. A second connecting pipe 59 is fixedly connected to the side wall of the sealing box 51. One end of the second connecting pipe 59 passes through the side wall of the groove body 57 and is fixedly connected to the airbag 58. A control valve 510 is installed inside the second connecting pipe 59. The second connecting pipe 59 is located below the partition 52.

[0031] In this solution, since the sample needle 33 has the problem of sample dripping during the liquid aspiration process, in order to avoid sample dripping, after the sample needle 33 completes the liquid aspiration, the solenoid valve 34 inside the air extraction pipe 31 is closed, and the one-way air outlet valve 54 and the control valve 510 are opened, and air is extracted by an external negative pressure pump, so that the air between the sealing box 51 and the first piston plate 512 is extracted along the first connecting pipe 53 and the air extraction pipe 31. In this process, the pressure difference between the sealing box 51 and the first piston plate 512 is used to drive the first piston plate 512 to move upward, and at this time, the second spring 511 is in the In the compressed state, the second piston plate 514 is driven to move upward synchronously through the connecting rod 513. As the second piston plate 514 moves upward, the pressure between the second piston plate 514 and the partition plate 52 increases. At this time, the air between the second piston plate 514 and the partition plate 52 enters the airbag 58 along the second connecting pipe 59, so that the airbag 58 expands. The fully expanded airbag 58 seals the port of the sample addition needle 33. Even if there are problems later, the sample already absorbed in the sample addition needle 33 will not drip, thereby ensuring the sample sampling amount, reducing errors, and improving the test accuracy. When it is necessary to discharge the sample inside the sampling needle 33, the one-way air outlet valve 54 is closed and the one-way air inlet valve 56 is opened. At this time, the control valve 510 is still open. After the one-way air inlet valve 56 is opened, the first piston plate 512 and the sealing box 51 are connected to the outside, and the negative pressure disappears. Under the elastic action of the second spring 511, the first piston plate 512 is pushed to reset and move. On the one hand, it is convenient for subsequent use. On the other hand, the first piston plate 512 moves downward, and the second piston plate 514 is driven to move downward synchronously through the connecting rod 513, so that the second piston plate 514 moves to its original position. The pressure difference between the second piston plate 514 and the partition 52 is used to make the air inside the airbag 58 be drawn back along the second connecting pipe 59 to between the second piston plate 514 and the partition 52, so that the airbag 58 shrinks, thereby opening the port of the sampling needle 33 and then performing the discharge operation.

[0032] In order to solve the problem that after the residual impurities in the sample adding needle 33 are cleaned out, they will be scattered on the bottom wall of the box body 11, and the staff will still need to clean them after the test is completed, which is a cumbersome technical problem. Figure 2 - Figure 3 and Fig.10 As shown, the following preferred technical solutions are provided: The adsorption assembly 6 includes an adsorption plate 61, which is fixedly connected to the inner bottom wall of the box body 11. The side walls of the adsorption plate 61 are symmetrically fixedly connected with fixed blocks 62, one of the side walls of the fixed blocks 62 is fixedly connected with a motor 63, and the output end of the motor 63 is fixedly connected with a reciprocating screw 64.

[0033] One end of the reciprocating screw 64 penetrates and is rotatably connected to the side walls of the two fixed blocks 62 . The side walls of the reciprocating screw 64 are threadedly connected with a threaded sleeve 65 . The side walls of the threaded sleeve 65 are fixedly connected with a friction block 66 . The friction block 66 slides against the side walls of the adsorption plate 61 .

[0034] In this solution: after the anti-blocking component 4 works, the impurities retained in the sample adding needle 33 will be cleaned out from the inside and scattered inside the box 11, which is inconvenient for subsequent staff to clean; when the impurities inside the sample adding needle 33 are cleaned, the driving motor 63 drives the reciprocating screw 64 to rotate through the output end of the motor 63, and the reciprocating screw 64 rotates to drive the threaded sleeve 65 and the friction block 66 to slide back and forth in the horizontal direction. The friction block 66 and the adsorption plate 61 are continuously rubbed to generate static electricity, thereby centrally adsorbing the impurities scattered inside the box 11 and collecting the impurities. After the test is completed, it is only necessary to clean the impurities at the adsorption plate 61. Compared with the staff who still need to clean the impurities scattered inside the box 11 after the test is completed, this device is simpler and more convenient, improves the practicality of the device, and improves the cleaning efficiency.

[0035] The test method of the test system of the fully automatic coagulation tester, the specific operation steps are as follows: Step 1: A cavity 32 is provided inside the rotating sample loading arm 3, and a suction pipe 31 is fixedly connected to the top of the cavity 32. The suction pipe 31 is externally connected to a negative pressure pump for generating negative pressure to aspirate liquid; Step 2: Energize the electromagnet 46 so that like magnetic poles are generated between the adjacent end faces of the electromagnet 46 and the permanent magnet 47. The generated magnetic repulsion is used to push the arc plate 43 downward, so that the first magnet 44 and the second magnet 45 are separated. Under the elastic action of the first spring 42, the arc plate 43 is pushed to move downward along the outer wall of the sample needle 33. The magnetic attraction between the third magnet 49 and the fourth magnet 410 can make the scraper ring 48 move synchronously with the arc plate 43, so that the scraper ring 48 scrapes along the inner wall of the sample needle 33 to scrape off the impurities remaining on the inner wall of the sample needle 33. Step 3: Close the solenoid valve 34 inside the exhaust pipe 31, and open the one-way air outlet valve 54 and the control valve 510, and exhaust air through an external negative pressure pump, so that the air between the sealing box 51 and the first piston plate 512 is extracted along the first connecting pipe 53 and the exhaust pipe 31. In this process, the pressure difference between the sealing box 51 and the first piston plate 512 is used to drive the first piston plate 512 to move upward, and the second piston plate 514 is driven to move upward synchronously through the connecting rod 513. The pressure between the second piston plate 514 and the partition plate 52 is increased, and the air therebetween enters the airbag 58 along the second connecting pipe 59, so that the airbag 58 expands. The fully expanded airbag 58 seals the port of the sample injection needle 33; Step 4: Close the one-way air outlet valve 54 and open the one-way air inlet valve 56. Under the elastic action of the second spring 511, the first piston plate 512 is pushed to reset and move, and the second piston plate 514 is driven to move downward synchronously through the connecting rod 513, so that the second piston plate 514 moves to the original position. The pressure difference between the second piston plate 514 and the partition plate 52 is used to draw the air inside the airbag 58 back to between the second piston plate 514 and the partition plate 52 along the second connecting pipe 59, so that the airbag 58 shrinks, thereby opening the port of the sample injection needle 33, and then the liquid discharge operation is carried out; Step 5: The reciprocating screw 64 is driven to rotate through the output end of the motor 63. The reciprocating screw 64 is used to rotate to drive the threaded sleeve 65 and the friction block 66 to slide back and forth in the horizontal direction. The friction block 66 and the adsorption plate 61 are continuously rubbed to generate static electricity, thereby centrally adsorbing and collecting the impurities scattered inside the box body 11.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test system for a fully automatic coagulation tester, comprising a test bench (1) and a housing (11), characterized in that: The box (11) is fixedly mounted on the top of the test bench (1); a sample position (2), a test position (21) and a reagent position (22) are fixedly mounted inside the box (11); the sample position (2), the test position (21) and the reagent position (22) are arranged in an arc shape; a rotating sample loading arm (3) is mounted inside the box (11); a cavity (32) is provided inside the rotating sample loading arm (3); a suction pipe (31) is fixedly connected to the top of the cavity (32); a solenoid valve (34) is mounted inside the suction pipe (31); a sample loading needle (33) is fixedly connected to the bottom wall of the cavity (32); an anti-blocking component (4) is mounted on one side wall of the sample loading needle (33); a leak-proof component (5) is mounted on the other side of the sample loading needle (33); and an adsorption component (6) is mounted inside the box (11).

2. The test system of the fully automatic coagulation tester according to claim 1, characterized in that: The anti-blocking component (4) comprises a mounting box (41), the mounting box (41) being an arc-shaped structure, the mounting box (41) being fixedly connected to the side wall of the sample injection needle (33), the inner top wall of the mounting box (41) being symmetrically fixedly connected to a first spring (42), two first springs (42) being commonly fixedly connected to an arc-shaped plate (43), the top end of the arc-shaped plate (43) being symmetrically fixedly connected to a second magnet (45), and the inner top wall of the mounting box (41) being symmetrically fixedly connected to a first magnet (44).

3. The test system of the fully automatic coagulation tester according to claim 2, characterized in that: Each of the first magnets (44) is magnetically attracted to an adjacent second magnet (45); an electromagnet (46) is fixedly connected to the inner top wall of the installation box (41); a permanent magnet (47) is fixedly connected to the top wall of the arc plate (43); a fourth magnet (410) is embedded and fixedly connected to the inner side wall of the arc plate (43); a scraper ring (48) is slidably connected to the inside of the sample injection needle (33); a third magnet (49) is embedded and fixedly connected to the outer side wall of the scraper ring (48); and the third magnet (49) and the fourth magnet (410) are magnetically attracted to each other.

4. The test system of the fully automatic coagulation tester according to claim 3, characterized in that: The leak-proof component (5) comprises a sealing box (51), the sealing box (51) being an arc-shaped structure, the sealing box (51) being fixedly connected to the side wall of the sample injection needle (33), the inner side wall of the sealing box (51) being fixedly connected to a partition (52), the partition (52) being symmetrically penetrated and slidably connected to connecting rods (513), the top ends of the two connecting rods (513) being fixedly connected to a first piston plate (512), and the bottom ends of the two connecting rods (513) being fixedly connected to a second piston plate (514).

5. The test system of the fully automatic coagulation tester according to claim 4, characterized in that: The first piston plate (512) and the second piston plate (514) are both sealingly and slidably connected to the inner wall of the sealing box (51); the top end of the first piston plate (512) is symmetrically and fixedly connected to the second spring (511); the top end of each second spring (511) is fixedly connected to the inner top wall of the sealing box (51); and the side wall of the sealing box (51) is fixedly connected to the first connecting pipe (53).

6. The test system of the fully automatic coagulation tester according to claim 5, characterized in that: One end of the first connecting tube (53) is fixedly connected to the exhaust tube (31), a one-way air outlet valve (54) is installed inside the first connecting tube (53), a pressure relief tube (55) is fixedly connected to the side wall of the sealing box (51), a one-way air inlet valve (56) is installed inside the pressure relief tube (55), the first connecting tube (53) and the pressure relief tube (55) are both located above the partition (52), an exhaust hole (515) is provided on the side wall of the sealing box (51), the exhaust hole (515) is located between the first piston plate (512) and the partition (52), and a groove (57) is provided on the bottom wall of the sample injection needle (33).

7. The test system of the fully automatic coagulation tester according to claim 6, characterized in that: The trough body (57) is an arc-shaped structure. An airbag (58) is fixedly connected to the interior of the trough body (57). A second connecting pipe (59) is fixedly connected to the side wall of the sealing box (51). One end of the second connecting pipe (59) passes through the side wall of the trough body (57) and is fixedly connected to the airbag (58). A control valve (510) is installed inside the second connecting pipe (59). The second connecting pipe (59) is located below the partition (52).

8. The test system of the fully automatic coagulation tester according to claim 7, characterized in that: The adsorption assembly (6) comprises an adsorption plate (61), the adsorption plate (61) being fixedly connected to the inner bottom wall of the box body (11), the side walls of the adsorption plate (61) being symmetrically fixedly connected to fixed blocks (62), one side wall of the fixed blocks (62) being fixedly connected to a motor (63), and the output end of the motor (63) being fixedly connected to a reciprocating screw (64).

9. The test system of the fully automatic coagulation tester according to claim 8, characterized in that: One end of the reciprocating screw (64) passes through and is rotatably connected to the side walls of the two fixed blocks (62); the side walls of the reciprocating screw (64) are threadedly connected to a threaded sleeve (65); the side walls of the threaded sleeve (65) are fixedly connected to a friction block (66); the friction block (66) slides against the side walls of the adsorption plate (61).

10. A method for testing a test system of a fully automatic coagulation tester, using the test system of the fully automatic coagulation tester according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: S1: A cavity (32) is provided inside the rotating sample loading arm (3), the top of the cavity (32) is fixedly connected to an air suction pipe (31), and the air suction pipe (31) is externally connected to a negative pressure pump for generating negative pressure to aspirate liquid; S2: energizing the electromagnet (46) so that like magnetic poles are generated between adjacent end faces of the electromagnet (46) and the permanent magnet (47). The generated magnetic repulsion is used to push the arc plate (43) downward, so that the first magnet (44) and the second magnet (45) are separated from each other. Under the elastic action of the first spring (42), the arc plate (43) is pushed downward along the outer wall of the sample needle (33). The magnetic attraction between the third magnet (49) and the fourth magnet (410) can cause the scraper ring (48) to move synchronously with the arc plate (43), so that the scraper ring (48) scrapes along the inner wall of the sample needle (33) to scrape off impurities remaining on the inner wall of the sample needle (33); S3: closing the solenoid valve (34) inside the air extraction pipe (31), and opening the one-way air outlet valve (54) and the control valve (510), and extracting air through an external negative pressure pump, so that the air between the sealing box (51) and the first piston plate (512) is extracted along the first connecting pipe (53) and the air extraction pipe (31). During this process, the pressure difference between the sealing box (51) and the first piston plate (512) is used to drive the first piston plate (512) to move upward, and the second piston plate (514) is driven to move upward synchronously through the connecting rod (513). The pressure between the second piston plate (514) and the partition (52) is increased, and the air therebetween enters the airbag (58) along the second connecting pipe (59), so that the airbag (58) expands. The fully expanded airbag (58) seals the port of the sample injection needle (33); S4: The one-way air outlet valve (54) is closed and the one-way air inlet valve (56) is opened. Under the elastic action of the second spring (511), the first piston plate (512) is pushed to reset and move, and the second piston plate (514) is driven to move downward synchronously through the connecting rod (513), so that the second piston plate (514) moves to the original position. The pressure difference between the second piston plate (514) and the partition plate (52) is used to draw the air inside the airbag (58) back to between the second piston plate (514) and the partition plate (52) along the second connecting pipe (59), so that the airbag (58) contracts, thereby opening the port of the sample injection needle (33), and then performing the liquid discharge operation; S5: The reciprocating screw (64) is driven to rotate by the output end of the motor (63). The reciprocating screw (64) is driven to rotate to drive the threaded sleeve (65) and the friction block (66) to slide back and forth in the horizontal direction. The friction block (66) and the adsorption plate (61) are continuously rubbed to generate static electricity, thereby centrally adsorbing and collecting impurities scattered inside the box (11).

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