A combined dry chemical detection and physical detection system

Abstract

This invention discloses a combined dry chemical detection and physical detection system, comprising a first valve and a second valve. The three ports of the first valve are respectively connected to the connection end of a sampling needle, the front cavity of a first syringe, and the inlet end of a physical detection module. The two ports of the second valve are respectively connected to the outlet end of the physical detection module and the front cavity of the second syringe. When the first valve is in a first state, the sampling needle is connected to the front cavity of the first syringe. When the first valve is in a second state, the sampling needle is connected to the inlet end of the physical detection module. When the second valve is in the first state, the outlet end of the physical detection module is connected to the front cavity of the second syringe. In this invention, when the sampling needle moves to the sample dispensing position for dry chemical dispensing, the physical detection sample and the dry chemical detection sample are separated by the first valve, thus not affecting the static state of the physical detection sample, thereby enabling physical detection during dry chemical dispensing.

Description

Technical Field

[0001] This utility model belongs to the field of liquid detection technology, and in particular relates to a system for combining dry chemical detection and physical detection. Background Technology

[0002] Currently, physical detection modules can utilize optical principles and a computer control system to test the specific gravity, turbidity, color, conductivity, and osmotic pressure of liquids. These modules are typically connected in series within the dry chemical detection tubing. For example, in patent publication CN102967701A, the physical detection module is connected in series within the dry chemical tubing. Both the physical detection sample and the dry chemical detection sample are aspirated together into the dry chemical tubing. This means that during the dry chemical sampling and dripping process of the urine instrument, the sample within the physical detection module cannot remain stationary, thus preventing physical detection from being performed. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this invention provides a system that combines dry chemical detection and physical detection, enabling physical detection during dry chemical sample preparation.

[0004] The objective of this utility model is achieved through the following technical solution: A dry chemical detection and physical detection combined system includes a first valve and a second valve. The three ports of the first valve are respectively connected to the connection end of the sampling needle, the front end cavity of the first syringe, and the liquid inlet end of the physical detection module. The two ports of the second valve are respectively connected to the liquid outlet end of the physical detection module and the front end cavity of the second syringe. When the first valve is in the first state, the connecting end of the sampling needle is connected to the front cavity of the first syringe; when the first valve is in the second state, the connecting end of the sampling needle is connected to the liquid inlet of the physical detection module. When the second valve is in the first state, the liquid outlet of the physical detection module is connected to the front end cavity of the second syringe; when the second valve is in the second state, the liquid outlet of the physical detection module is not connected to the front end cavity of the second syringe.

[0005] Furthermore, a first conduit is provided between one port of the first valve and the connection end of the sampling needle.

[0006] Furthermore, a bubble sensor is installed on the first pipeline.

[0007] Furthermore, a second conduit is provided between one port of the first valve and the front end cavity of the first syringe, a third conduit is provided between one port of the first valve and the inlet end of the physical detection module, and a fourth conduit is provided between the outlet end of the physical detection module and one port of the second valve.

[0008] Furthermore, a fifth conduit is provided between one port of the second valve and the front end cavity of the second syringe.

[0009] Furthermore, the dry chemical detection and physical detection combined system includes a third valve, the two ports of which are respectively connected to the main chamber of the first syringe and the front chamber of the second syringe; When the third valve is in the first state, the front end chamber of the second syringe is not connected to the main chamber of the first syringe; when the third valve is in the second state, the front end chamber of the second syringe is connected to the main chamber of the first syringe.

[0010] Furthermore, the dry chemical detection and physical detection combined system includes a sixth pipeline, the two ends of which are respectively connected to one port of the third valve and the fifth pipeline.

[0011] Furthermore, the third valve is a solenoid valve.

[0012] Furthermore, a pressure sensor is installed on the fifth tubing near the end of the second syringe. Furthermore, both the first and second valves are solenoid valves.

[0013] The beneficial effects of this utility model are as follows: With the first valve in its first state and the first syringe pulled, a sample can be drawn into the end of the first valve near the sampling needle. Then, by adjusting the first valve to its second state and the second valve in its first state, and pulling the second syringe, a portion of the sample can be drawn into the physical detection module for use as the physical detection sample, while the remaining sample is used as the dry chemical detection sample at the end of the first valve near the sampling needle. Adjusting the first valve back to its first state further separates the physical detection sample from the dry chemical detection sample, ensuring that the static state of the physical detection sample is not affected when the sampling needle moves to the dripping position for dry chemical dripping, thus enabling physical detection during dry chemical dripping. Attached Figure Description

[0014] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein: Figure 1 A connection diagram of this utility model is shown; Figure 2 The flowchart of the present invention is shown; In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0015] Figure label: 1. Sampling needle; 2. Bubble sensor; 3. First tubing; 4. First valve; 5. Third tubing; 6. Physical detection module; 7. Fourth tubing; 8. Second valve; 9. Fifth tubing; 10. Pressure sensor; 11. Second syringe; 12. Sixth tubing; 13. Third valve; 14. First syringe; 15. Second tubing. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] This invention provides a system for combining dry chemical detection and physical detection, such as... Figure 1 As shown, it includes a first valve 4 and a second valve 8. The three ports of the first valve 4 are respectively connected to the connection end of the sampling needle 1, the front end cavity of the first syringe 14 and the liquid inlet end of the physical detection module 6. The two ports of the second valve 8 are respectively connected to the liquid outlet end of the physical detection module 6 and the front end cavity of the second syringe 11. The first valve 4 can be a two-position three-way valve. When the first valve 4 is in the first state, the connecting end of the sampling needle 1 is connected to the front end cavity of the first syringe 14. When the first valve 4 is in the second state, the connecting end of the sampling needle 1 is connected to the liquid inlet of the physical detection module 6. The second valve 8 can be a two-position three-way valve or a two-position two-way valve. When the second valve 8 is in the first state, the liquid outlet of the physical detection module 6 is connected to the front end cavity of the second syringe 11. When the second valve 8 is in the second state, the liquid outlet of the physical detection module 6 is not connected to the front end cavity of the second syringe 11.

[0018] Understandably, when the first valve 4 is in the first state and the first syringe 14 is pulled, a sample can be drawn to the end of the first valve 4 near the sampling needle 1. Then, by adjusting the first valve 4 to the second state and the second valve 8 to the first state and pulling the second syringe 11, a portion of the sample can be drawn into the physical detection module 6 for use as a physical detection sample, while the remaining sample is used as a dry chemical detection sample at the end of the first valve 4 near the sampling needle 1. By adjusting the first valve 4 to the first state again, the physical detection sample and the dry chemical detection sample can be separated by the first valve 4. That is, when the sampling needle 1 moves to the drip position for dry chemical dripping, it will not affect the static state of the physical detection sample, thus enabling physical detection during dry chemical dripping.

[0019] It should also be noted that the dry chemical detection and physical detection combined system needs to be fixed on the corresponding moving module so that it can move to the sampling position or the drop position; the physical detection module 6 is existing technology, and its specific composition or structure will not be described in detail here.

[0020] In one embodiment, the dry chemical detection and physical detection combined system includes a third valve 13, the two ports of which are respectively connected to the main cavity of the first syringe 14 and the front cavity of the second syringe 11; The third valve 13 can be a two-position two-way valve. When the third valve 13 is in the first state, the front end cavity of the second syringe 11 is not connected to the main cavity of the first syringe 14. When the third valve 13 is in the second state, the front end cavity of the second syringe 11 is connected to the main cavity of the first syringe 14.

[0021] It is understandable that when the third valve 13 is in the second state, the front end chamber of the second syringe 11 is connected to the main chamber of the first syringe 14, so that the cleaning pressure can be injected into the main chamber of the first syringe 14 by the second syringe 11, which is beneficial to cleaning the main chamber and the front end chamber of the first syringe 14.

[0022] In one embodiment, a first conduit 3 is provided between one port of the first valve 4 and the connection end of the sampling needle 1; a second conduit 15 is provided between one port of the first valve 4 and the front end cavity of the first syringe 14; a third conduit 5 is provided between one port of the first valve 4 and the inlet end of the physical detection module 6; a fourth conduit 7 is provided between the outlet end of the physical detection module 6 and one port of the second valve 8; a fifth conduit 9 is provided between one port of the second valve 8 and the front end cavity of the second syringe 11; and the dry chemical detection and physical detection combined system includes a sixth conduit 12, the two ends of which are respectively connected to one port of the third valve 13 and the fifth conduit 9.

[0023] In one embodiment, a bubble sensor 2 is provided on the first pipeline 3 so as to detect whether there are bubbles in the sample in the first pipeline 3, thereby facilitating the determination of whether the amount of sample taken by the sampling needle 1 meets the detection requirements.

[0024] In one embodiment, a pressure sensor 10 is provided on the end of the fifth tubing 9 near the second syringe 11.

[0025] In one embodiment, the first valve 4, the second valve 8, and the third valve 13 are all solenoid valves, and the first valve 4, the second valve 8, and the third valve 13 can all be electrically connected to the corresponding control module to achieve automatic control.

[0026] Specifically, when the first valve 4 is de-energized, the first valve 4 is in the first state; when the first valve 4 is energized, the first valve 4 is in the second state. When the second valve 8 is de-energized, the second valve 8 is in the first state; when the second valve 8 is energized, the second valve 8 is in the second state. When the third valve 13 is de-energized, the third valve 13 is in the first state; when the third valve 13 is energized, the third valve 13 is in the second state.

[0027] like Figure 1 and Figure 2 As shown, the working process of this utility model includes the following steps: Both the first valve 4 and the third valve 13 are de-energized so that the front end of the first syringe 14 is connected to the connection end of the sampling needle 1; pull the first syringe 14 to draw about 200uL of sample to the end of the first valve 4 near the sampling needle 1; The first valve 4 is energized and the second valve 8 is de-energized, so that the sampling needle 1, the physical detection module 6 and the second syringe 11 are connected in sequence, and the first syringe 14 is no longer connected to the sampling needle 1; the second syringe 11 is pulled to draw part of the sample into the physical detection module 6 for use as a physical detection sample, and the remaining part of the sample is left at the end of the first valve 4 near the sampling needle 1 for use as a dry chemical detection sample. The first valve 4 and the third valve 13 are de-energized so that the front end cavity of the first syringe 14 is reconnected to the connection end of the sampling needle 1, and the test sample of physical detection is separated from the test sample of dry chemical detection by the first valve 4. Move sampling needle 1 to the sample drop position, and the sample to be tested in the physical detection module 6 will begin to stand still until it reaches a static state; The first syringe 14 is pushed to deliver a dry chemical drop through the sampling needle 1; at the same time, the sample for physical testing in the physical testing module 6 remains stationary and undergoes physical testing.

[0028] It should be noted that after the dry chemical sample drop and physical testing are completed, the cleaning solution is drawn in and then squeezed out to clean each pipeline.

[0029] It should also be noted that, since the physical detection sample and the dry chemical detection sample are separated by the first valve 4, the physical detection sample in the physical detection module 6 can also be allowed to stand during the dry chemical drop sample. That is, the dry chemical detection and physical detection combined system no longer requires additional standing time, thus saving this part of the standing time.

[0030] In summary, this utility model modifies the connection method of the physical detection module 6 by connecting the physical detection module 6 in parallel to the dry chemical sampling pipeline to ensure that the physical detection sample is completely stationary and can operate independently of the dry chemical detection process, so as not to affect the dry chemical detection throughput of the instrument.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A system for combining dry chemical detection and physical detection, characterized in that, It includes a first valve (4) and a second valve (8). The three ports of the first valve (4) are respectively connected to the connection end of the sampling needle (1), the front end cavity of the first syringe (14) and the liquid inlet end of the physical detection module (6). The two ports of the second valve (8) are respectively connected to the liquid outlet end of the physical detection module (6) and the front end cavity of the second syringe (11). When the first valve (4) is in the first state, the connecting end of the sampling needle (1) is connected to the front end cavity of the first syringe (14); when the first valve (4) is in the second state, the connecting end of the sampling needle (1) is connected to the liquid inlet of the physical detection module (6). When the second valve (8) is in the first state, the liquid outlet of the physical detection module (6) is connected to the front end cavity of the second syringe (11); when the second valve (8) is in the second state, the liquid outlet of the physical detection module (6) is disconnected from the front end cavity of the second syringe (11).

2. The dry chemical detection and physical detection combined system according to claim 1, characterized in that, A first conduit (3) is provided between one port of the first valve (4) and the connection end of the sampling needle (1).

3. The dry chemical detection and physical detection combined system according to claim 2, characterized in that, A bubble sensor (2) is installed on the first pipeline (3).

4. The dry chemical detection and physical detection combined system according to claim 1, characterized in that, A second pipeline (15) is provided between one port of the first valve (4) and the front end cavity of the first syringe (14), a third pipeline (5) is provided between one port of the first valve (4) and the liquid inlet of the physical detection module (6), and a fourth pipeline (7) is provided between the liquid outlet of the physical detection module (6) and one port of the second valve (8).

5. The dry chemical detection and physical detection combined system according to claim 1, characterized in that, A fifth conduit (9) is provided between one port of the second valve (8) and the front end cavity of the second syringe (11).

6. The dry chemical detection and physical detection combined system according to claim 5, characterized in that, Includes a third valve (13), the two ports of which are respectively connected to the main cavity of the first syringe (14) and the front cavity of the second syringe (11); When the third valve (13) is in the first state, the front end cavity of the second syringe (11) is not connected to the main cavity of the first syringe (14); when the third valve (13) is in the second state, the front end cavity of the second syringe (11) is connected to the main cavity of the first syringe (14).

7. The dry chemical detection and physical detection combined system according to claim 6, characterized in that, It includes a sixth pipeline (12), the two ends of which are respectively connected to one port of the third valve (13) and the fifth pipeline (9).

8. The dry chemical detection and physical detection combined system according to claim 6, characterized in that, The third valve (13) is a solenoid valve.

9. The dry chemical detection and physical detection combined system according to claim 5, characterized in that, A pressure sensor (10) is provided at one end of the fifth pipeline (9) near the second syringe (11).

10. The dry chemical detection and physical detection combined system according to claim 1, characterized in that, Both the first valve (4) and the second valve (8) are solenoid valves.

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