Washing liquid system of blood coagulation analyzer

Abstract

The utility model discloses a blood coagulation analyzer washing liquid system which comprises a washing liquid unit and a waste liquid unit, and the washing liquid unit and the waste liquid unit are connected through a sample needle and a double-reagent needle. The cleaning liquid unit comprises a main cleaning module, a double-reagent needle cleaning module and a sample needle cleaning module. According to the scheme, equipment is simplified, cost is reduced, and cross contamination of specimens and reagents is avoided.

Description

Technical Field

[0001] The utility model relates to the field of cleaning systems, in particular to a cleaning solution system for a coagulation analyzer. Background Art

[0002] Coagulation analyzer is a medical clinical laboratory equipment (laboratory medical device). It is a routine testing equipment that is necessary in clinical practice to measure the content of various components in human blood, quantify biochemical analysis results, and provide reliable digital basis for clinical diagnosis of various diseases of patients. In existing coagulation analyzers, each test involves different samples and reagents. After the sample needle and reagent needle are used, there will be sample or reagent residues on their outer and inner walls. If they are not cleaned, it will affect the accuracy of the next test. Therefore, a solution for cleaning the sample needle and reagent needle is needed.

[0003] The existing equipment is cumbersome and costly, and requires the installation of multiple pipelines, multiple pumps in the multiple pipelines, and a corresponding number of cleaning stations. Using a single pipeline system to clean each needle takes up a large space in the instrument, and it is inconvenient to adaptively adjust the device according to the actual situation of the reagent needle and the sample needle. Therefore, it is urgent to design a coagulation analyzer washing liquid system to meet the actual needs of cleaning the sample needle and the reagent needle in the current coagulation analyzer. Utility Model Content

[0004] In response to the existing problems, the utility model provides a cleaning system for a coagulation analyzer, aiming to solve the problems of the existing coagulation analyzer cleaning system being cumbersome, costly, occupying a large space in the instrument, and inconvenient in adaptively adjusting the device according to the actual conditions of the reagent needle and the sample needle.

[0005] In order to solve the above problems, the utility model discloses a washing liquid system for a coagulation analyzer, comprising a washing liquid unit and a waste liquid unit, wherein the washing liquid unit and the waste liquid unit are connected via a sample needle and a double reagent needle; the washing liquid unit comprises a total washing module, a double reagent needle washing module and a sample needle washing module; the total washing module comprises a washing bucket, the washing bucket is connected to a first diaphragm pump, the first diaphragm pump is connected to a water tank via a pipeline, the water tank is connected to a second diaphragm pump via a pipeline, the second diaphragm pump is connected to a five-way valve, the five-way valve comprises a first water outlet and a second water outlet, the first water outlet is connected to the double reagent needle washing module, the second water outlet is connected to the sample needle washing module; the double reagent needle washing module The washing module includes a two-way threaded valve 1, which is connected to a three-way valve, which is connected to a first reagent needle and a second reagent needle, and a first plunger pump is provided between the two-way threaded valve 1 and the three-way valve to help the first reagent needle and the second reagent needle extract sample liquid; the sample needle cleaning module includes a two-way threaded valve 2, which is connected to a second plunger pump, and the second plunger pump is connected to the sample needle; the waste liquid unit includes a cleaning tank connected to the sample needle and the double reagent needle, the cleaning tank is connected to a buffer bottle, and the buffer bottle is connected to a third diaphragm pump; the water outlet end of the third diaphragm pump is connected to the first T-type tee, and the water outlet end of the first T-type tee is connected to the waste liquid barrel through the second T-type tee.

[0006] Furthermore, a diaphragm one-way valve is arranged between the cleaning barrel and the first diaphragm pump, a diaphragm one-way valve is arranged between the first T-type three-way, the second T-type three-way and the third diaphragm pump, and a diaphragm one-way valve is arranged between the second T-type three-way and the waste liquid barrel.

[0007] Furthermore, a double float sensor is provided in the water tank, an overflow port is provided above the water tank, the overflow port is connected to the waste liquid barrel and a diaphragm one-way valve is provided therebetween.

[0008] Furthermore, the five-way valve is connected to a capillary tube.

[0009] Furthermore, the buffer bottle is connected to a metal through-plate straight-through interface.

[0010] Furthermore, the buffer bottle is connected to a refrigeration tray.

[0011] Compared with existing utility models, utility models have the following advantages:

[0012] By setting up a total cleaning module to streamline the equipment, it is only necessary to use a five-way valve to divide its outlet into two parts and connect them to the sample needle cleaning module and the reagent needle cleaning module respectively, so as to clean the inner wall, reduce the cross contamination of specimens and reagents, and improve the accuracy and reliability of the experiment. In addition, when making adaptive adjustments according to the actual conditions of the reagent needle and the sample needle, the total cleaning module does not need to be adjusted, and only the sample needle cleaning module or the reagent needle cleaning module needs to be adjusted separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cleaning fluid unit of the utility model;

[0015] Figure 3 This is a schematic diagram of the waste liquid unit of the utility model;

[0016] In the figure: 1. cleaning liquid unit; 2. waste liquid unit; 3. double reagent needle; 301. first reagent needle; 302. second reagent needle; 4. sample needle; 5. total cleaning module; 6. double reagent needle cleaning module; 7. sample needle cleaning module; 8. first diaphragm pump; 9. water tank; 10. second diaphragm pump; 11. five-way valve; 12. first water outlet; 13. second water outlet; 14. two-way threaded valve one; 15. three-way valve; 16. first plunger pump; 17. two-way threaded valve two; 18. second plunger pump; 19. cleaning tank; 20. buffer bottle; 21. third diaphragm pump; 22. first T-type three-way 23. second T-type three-way; 24. waste liquid barrel; 25. cleaning barrel; 26. double float sensor; 27. overflow port; 28. capillary; 29 metal through-plate straight-through interface; 30. cold storage tray; DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 - Figure 3A washing liquid system of a coagulation analyzer comprises a washing liquid unit 1 and a waste liquid unit 2, wherein the washing liquid unit 1 and the waste liquid unit 2 are connected via a sample needle 4 and a double reagent needle 3; the washing liquid unit 1 comprises a total washing module 5, a double reagent needle washing module 6 and a sample needle washing module 7; the total washing module 5 comprises a washing barrel 25, the washing barrel 25 is connected to a first diaphragm pump 8, the first diaphragm pump 8 is connected to a water tank 9 via a pipeline, the water tank 9 is connected to a second diaphragm pump 10 via a pipeline, the second diaphragm pump 10 is connected to a five-way valve 11, the five-way valve 11 comprises a first water outlet 12 and a second water outlet 13, the first water outlet The port 12 is connected to the dual reagent needle cleaning module 6, and the second water outlet 13 is connected to the sample needle cleaning module 7; the dual reagent needle cleaning module 6 includes a two-way threaded valve 14, the two-way threaded valve 14 is connected to the three-way valve 15, the three-way valve 15 is connected to the first reagent needle 301 and the second reagent needle 302, and a first plunger pump 16 is provided between the two-way threaded valve 114 and the three-way valve 15 to help the first reagent needle 301 and the second reagent needle 302 extract the sample liquid; the sample needle cleaning module 7 includes a two-way threaded valve 17, the two-way threaded valve 17 is connected to the second plunger pump 18, and the second plunger pump 18 is connected to the sample needle 4;

[0019] It should be noted that the first diaphragm pump 8 pumps the cleaning liquid in the cleaning barrel 25 into the water tank 9, and a diaphragm one-way valve is set during the sampling process to prevent the cleaning liquid from flowing back; the second diaphragm pump 10 continuously pumps the cleaning liquid from the water outlet below the water tank 9 into the five-way valve 11; the two outlets of the five-way valve 11 are respectively connected to the dual-reagent needle cleaning module 6 and the sample needle cleaning module 7, and the cleaning liquid is continuously introduced into the dual-reagent needle cleaning module 6 and the sample needle cleaning module 7;

[0020] Double reagent needle cleaning part: When the double reagent needle is working, the two-way threaded valve 14 is turned on, and the cleaning liquid flows into the first plunger pump 16. The upper end of the first plunger pump 16 is connected to one end of the three-way valve 15. The three-way valve 15 is provided with two water outlets, which are respectively connected to the first reagent needle 301 and the second reagent needle 302. A magnetic baffle is provided inside the valve body of the three-way valve 15. Through its precise control, the water outlet can be alternately opened and closed, thereby realizing precise control of the double reagent needle operation process. During the double reagent needle spitting water, the two-way threaded valve 14 will be in a conducting state. At this time, one of the water outlets of the three-way valve 15 is connected to the first reagent needle 301 by default, thereby realizing the water spitting function of the first reagent needle 301; then the magnetic baffle moves to block this water outlet, and the other water outlet is connected to the second reagent needle 302 to realize the water spitting function of the reagent needle 2. When the double reagent needle extracts the sample, the two-way threaded valve 14 is closed, and the plunger of the first plunger pump 16 moves downward; when the double reagent needle spits out the sample, the two-way threaded valve 14 is closed, and the plunger of the first plunger pump 16 moves upward;

[0021] Sample needle cleaning part: When cleaning the sample needle, the two-way threaded valve 17 is turned on, and the cleaning liquid flows into the second plunger pump 18. The upper end of the second plunger pump 18 is connected to the sample needle. When the sample needle spits out water, the two-way threaded valve 17 will be in a turned-on state to realize the cleaning function of the sample needle. When the sample needle extracts the sample, the two-way threaded valve 17 is closed, and the plunger of the second plunger pump 18 moves downward. When the double reagent needle spits out the sample, the two-way threaded valve 17 is closed, and the plunger of the second plunger pump 18 moves upward.

[0022] The waste liquid unit 2 includes a cleaning tank 19 connected to the sample needle 4 and the dual reagent needle 3, the cleaning tank 19 is connected to a buffer bottle 20, and the buffer bottle 20 is connected to a third diaphragm pump 21; the waste liquid of the waste liquid unit 2 is combined into one path through a first T-type tee 22, and is collected with the pipeline waste liquid of the water tank 9 through a second T-type tee 23, and flows into the waste liquid barrel 24 together.

[0023] It should be noted that the waste liquid in the cleaning tank 19 flows into the buffer bottle 20 through the lower water outlet. A single float sensor is provided in the buffer bottle 20. When the float touches the top, the sensor switch is triggered to control the third diaphragm pump 21 to pump the waste liquid into the waste liquid barrel 24. The waste liquid pipeline of the sample needle and the waste liquid pipeline of the double reagent needle are combined into one through the first T-shaped tee 22, and are combined with the waste liquid in the water tank 9 through the second T-shaped tee 23, and finally flow into the waste liquid barrel 24 together.

[0024] A diaphragm check valve is arranged between the cleaning bucket 25 and the first diaphragm pump 8 , a diaphragm check valve is arranged between the first T-type three-way 22 , the second T-type three-way 23 and the third diaphragm pump 21 , and a diaphragm check valve is arranged between the second T-type three-way 23 and the waste liquid bucket 24 .

[0025] A double float sensor 26 is provided in the water tank 9 , and an overflow port 27 is provided above the water tank 9 . The overflow port 27 is connected to the waste liquid bucket 24 and a diaphragm one-way valve is provided therebetween.

[0026] It should be noted that when the upper float sensor of the double float sensor 26 fails and causes the water level to be too full, the overflow port 27 can directly drain the cleaning liquid into the waste liquid bucket 24, and a diaphragm one-way valve is provided between the overflow port 27 and the waste liquid bucket 24 to prevent the waste liquid from flowing back;

[0027] The five-way valve 11 is connected to the capillary tube 28 .

[0028] It should be noted that the five-way valve 11 is provided with four outlets, the upper outlet is connected to the capillary 28, and there are three outlets on the side, and the upper and lower outlets are closed by connector plugs; when the double reagent needle 3 and the sample needle 4 work and cause the pressure in the tube to increase, the cleaning liquid flows back to the water tank through the capillary 28 to balance the pressure in the tube. At the same time, since the inner diameter of the capillary 28 is small and the length is long, certain bubbles can be effectively eliminated during the liquid reflux process;

[0029] The buffer bottle 20 is connected to the metal plate through-port 29 .

[0030] It should be noted that the buffer bottle 20 is provided with two water outlets, the lower water outlet is connected to the third diaphragm pump 21, and the upper water outlet is connected to the metal through-plate straight-through interface 29, which can drain the waste liquid when the single float sensor fails and the water level is overfull;

[0031] The buffer bottle 20 is connected to a refrigeration tray 30 .

[0032] It should be noted that the water outlet at the lower end of the refrigerated tray 30 is connected to the buffer bottle 20, and condensed water is generated when the refrigerated tray is working.

[0033] During the operation of the washing system, under the control of a mechanical arm (not shown in the figure), the dual reagent needle 3 and the sample needle 4 enter the washing tank 19 to wash the outer walls of the dual reagent needle 3 and the sample needle 4. The outer wall and the inner wall are washed simultaneously.

[0034] The above structures are connected by threaded joints and PVC pipes.

[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coagulation analyzer washing liquid system, characterized in that: It comprises a cleaning liquid unit (1) and a waste liquid unit (2), wherein the cleaning liquid unit (1) and the waste liquid unit (2) are connected via a sample needle (4) and a double reagent needle (3); The cleaning liquid unit (1) comprises a general cleaning module (5), a dual reagent needle cleaning module (6) and a sample needle cleaning module (7); The total cleaning module (5) comprises a cleaning bucket (25), the cleaning bucket (25) is connected to a first diaphragm pump (8), the first diaphragm pump (8) is connected to a water tank (9) through a pipeline, the water tank (9) is connected to a second diaphragm pump (10) through a pipeline, the second diaphragm pump (10) is connected to a five-way valve (11), the five-way valve (11) comprises a first water outlet (12) and a second water outlet (13), the first water outlet (12) is connected to a dual-reagent needle cleaning module (6), and the second water outlet (13) is connected to a sample needle cleaning module (7); The dual reagent needle cleaning module (6) comprises a two-way threaded valve (14), the two-way threaded valve (14) is connected to a three-way valve (15), the three-way valve (15) is connected to a first reagent needle (301) and a second reagent needle (302), and a first plunger pump (16) is provided between the two-way threaded valve (14) and the three-way valve (15); The sample needle cleaning module (7) comprises a second two-way threaded valve (17), wherein the second two-way threaded valve (17) is connected to a second plunger pump (18), and the second plunger pump (18) is connected to the sample needle (4); The waste liquid unit (2) comprises a cleaning tank (19) connected to the sample needle (4) and the dual reagent needle (3), the cleaning tank (19) is connected to a buffer bottle (20), and the buffer bottle (20) is connected to a third diaphragm pump (21); The water outlet end of the third diaphragm pump (21) is connected to the first T-shaped tee (22), and the water outlet end of the first T-shaped tee (22) is connected to the waste liquid bucket (24) through the second T-shaped tee (23).

2. A coagulation analyzer washing liquid system according to claim 1, characterized in that: A diaphragm one-way valve is arranged between the cleaning bucket (25) and the first diaphragm pump (8), a diaphragm one-way valve is arranged between the first T-type three-way (22), the second T-type three-way (23) and the third diaphragm pump (21), and a diaphragm one-way valve is arranged between the second T-type three-way (23) and the waste liquid bucket (24).

3. A coagulation analyzer washing liquid system according to claim 1, characterized in that: A double float sensor (26) is arranged in the water tank (9), an overflow port (27) is arranged above the water tank (9), the overflow port (27) is connected to the waste liquid barrel (24), and a diaphragm one-way valve is arranged between the overflow port (27) and the waste liquid barrel (24).

4. A coagulation analyzer washing liquid system according to claim 1, characterized in that: The five-way valve (11) is connected to the capillary tube (28).

5. A coagulation analyzer washing liquid system according to claim 1, characterized in that: The buffer bottle (20) is connected to the metal through-plate straight-through interface (29).

6. A coagulation analyzer washing liquid system according to claim 1, characterized in that: The buffer bottle (20) is connected to a refrigeration tray (30).

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