Blockage state monitoring and dredging device for sampling needle of urine and excrement analyzer

Abstract

The utility model discloses a blocking state monitoring and dredging device for a sampling needle of a urine and excrement analyzer. Comprising a main shell, a sample adding channel arranged in the main shell, a sample adding needle mounted at an output end below the sample adding channel, a flow velocity measuring unit for monitoring a flow velocity value in the sample adding channel, a blockage dredging unit for impacting and dredging a blockage point in the sample adding needle, and a measurement and control mainboard, gas is added into high-speed water flow through the air pump, original pure water flow impact is converted into cavitation water jet impact under the mixing action of the flow mixing protruding part, the impact vibration frequency on a blocking point is increased, and the impact effect is enhanced; besides, by means of the electromagnetic principle, liquid passing through the flow velocity monitoring section can penetrate through a magnetic field generated by a magnetic pole, so that the flowing liquid is regarded as cutting magnetic induction lines to move, an electric signal is generated at an electrode, flow velocity measurement is achieved, finally, the automatic monitoring effect of the blocking state is achieved, meanwhile, a buzzer is used for reminding workers, and the working efficiency is improved. And the real-time performance of troubleshooting is improved.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of blockage and unblocking technology, and more specifically, relate to a device for monitoring and unblocking the blockage status of a urine and stool analyzer sampling needle. Background Technology

[0002] Clogged sampling needles in urine or stool analyzers are a common instrument malfunction in clinical laboratories. The main causes include: excessively high sample viscosity (such as concentrated urine or viscous stool), the presence of solid particles in the sample (such as undigested food residue in stool or crystals in urine), and the accumulation of sediment in the sample. In routine testing, if symptoms such as no dispensing from the sampling needle, insufficient sample volume, or consecutive abnormal test results occur, the possibility of sampling needle clogging should be considered. Sampling needle clogging is both occasional and frequent; therefore, taking appropriate and feasible measures to promptly clear the clogging is crucial for the smooth operation of urine or stool analysis.

[0003] When a clogged sampling needle is confirmed, follow these steps: First, run the instrument's built-in flushing program multiple times to attempt to clear the blockage. If automatic flushing is ineffective, manually disassemble the sampling needle and use a syringe to draw distilled water or a dedicated cleaning solution for repeated flushing. If the blockage persists, immerse the sampling needle in cleaning solution to soften it, then gently unclog it using a fine needle or a specialized tool. If necessary, use an ultrasonic cleaner for deep cleaning. After clearing the blockage, carefully inspect the sampling needle for damage or deformation. Once confirmed, reinstall the sampling needle according to standard operating procedures, start the instrument, and run the test program to verify its operational status. Finally, use quality control samples for testing to ensure the accuracy and reliability of the instrument's results.

[0004] Although the above-mentioned common methods can achieve the effect of clearing blockages in urine / feces sampling needles, the following technical problems still exist: (1) In actual work, the blockage situation is usually identified and judged based on abnormal test results and other phenomena, combined with experience, and inexperienced testers may find it difficult to identify; (2) When the instrument's built-in flushing program cannot directly solve the blockage problem, the sampling needle needs to be manually disassembled, manually cleared and the blockage fault is eliminated before reinstallation. Therefore, the automatic flushing and clearing effect should be optimized to improve the impact on stubborn blockages. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a device for monitoring and clearing blockages in the sampling needle of a urine and stool analyzer. By introducing gas into a high-speed water flow using an air pump, and through the mixing action of the mixing protrusion, the original pure water flow impact is transformed into a cavitation water jet impact, increasing the impact vibration frequency on the blockage point and enhancing the impact effect. Furthermore, by utilizing electromagnetic principles, the liquid passing through the flow velocity monitoring section passes through the magnetic field generated by the magnetic poles, thus the flowing liquid is considered to be cutting magnetic field lines, generating an electrical signal at the electrode to achieve flow velocity measurement. Ultimately, this achieves automatic monitoring of the blockage status, while a buzzer alerts staff, improving the real-time nature of troubleshooting.

[0006] To achieve the above objectives, a device for monitoring and clearing blockage of a urine / stool analyzer sampling needle includes:

[0007] The main housing is fixed to the main body of the analyzer; the sample dispensing channel is located inside the main housing; the sample dispensing needle is installed at the output end below the sample dispensing channel; the flow rate measuring unit monitors the flow rate value in the sample dispensing channel; the blockage clearing unit is used to clear the blockage point in the sample dispensing needle; and the measurement and control main board.

[0008] The sample feeding channel includes a threaded connector that connects to the output end of the analyzer body, a flow rate monitoring section and a blockage removal section that are continuously connected below the threaded connector; the flow rate measurement unit is located in the flow rate monitoring section, and the blockage removal unit is located in the blockage removal section;

[0009] The blockage clearing unit includes a connecting port located on one side of the clearing implementation section, a self-push limiting valve located at the connecting port, a fluid input channel connected to the connecting port, a high-pressure water pump connected to the input end of the fluid input channel, an air injection pipe connected to the fluid input channel, and an air pump connected to the input end of the air injection pipe.

[0010] Preferably, the flow rate measurement unit includes:

[0011] A pair of opposite magnetic poles located on the pipe wall of the flow velocity monitoring section, and a pair of electrodes located on the inner wall of the flow velocity monitoring section, which are positioned at an intersection with the magnetic poles.

[0012] Preferably, the main housing sidewall is provided with a cleaning sub-cavity filled with cleaning fluid.

[0013] Preferably, the main housing sidewall is provided with a tool storage cavity, and a drain needle is inserted into the tool storage cavity.

[0014] Preferably, the sampling channel includes an expansion and slow-flow section located between the flow velocity monitoring section and the dredging implementation section.

[0015] Preferably, the blockage clearing unit includes a mixing protrusion disposed at the connection port for enhancing gas-liquid mixing.

[0016] Preferably, the blockage clearing unit includes:

[0017] A pull-back magnet is provided at the connection port; the self-push limiting valve is made of iron.

[0018] Preferably, the measurement and control motherboard is equipped with a buzzer.

[0019] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0020] This invention relates to a device for monitoring and clearing blockages in the sampling needle of a urine and fecal analyzer. An air pump introduces gas into a high-speed water flow, and under the mixing effect of the mixed-flow protrusion, the original pure water flow impact is transformed into a cavitation water jet impact, increasing the impact vibration frequency on the blockage point and enhancing the impact effect. Furthermore, by utilizing electromagnetic principles, the liquid passing through the flow velocity monitoring section passes through the magnetic field generated by the magnetic poles, thus the flowing liquid is considered to be cutting magnetic field lines, generating an electrical signal at the electrode to achieve flow velocity measurement. Ultimately, this achieves automatic monitoring of the blockage status. Simultaneously, a buzzer alerts staff, improving the real-time nature of troubleshooting. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a urine and stool analyzer sampling needle blockage monitoring and unblocking device according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the blockage clearing unit of a urine and stool analyzer sampling needle blockage monitoring and clearing device according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the flow rate measurement unit of a urine and stool analyzer sampling needle blockage monitoring and unblocking device according to an embodiment of the present invention;

[0024] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-body, 100-main housing, 110-cleaning secondary chamber, 120-tool storage chamber, 121-unblocking needle, 2-sample dispensing channel, 201-threaded connector, 202-flow rate monitoring section, 203-expansion and slow flow section, 204-unblocking implementation section, 3-flow rate measurement unit, 301-magnetic pole, 302-electrode, 4-blockage unblocking unit, 401-self-push limiting valve, 402-fluid input channel, 403-high pressure water pump, 404-air pump, 405-air injection pipe, 406-mixing protrusion, 407-reverse magnet, 5-control main board, 6-analyzer body, 7-sample dispensing needle. Detailed Implementation

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figures 1-3 As shown in this embodiment of the invention, the urine and stool analyzer sampling needle blockage monitoring and unblocking device includes:

[0030] The main housing 100 fixed to the main body 6 of the analyzer, the sample dispensing channel 2 provided in the main housing 100, the sample dispensing needle 7 installed at the output end below the sample dispensing channel 2, the flow rate measuring unit 3 for monitoring the flow rate value in the sample dispensing channel 2, the blockage clearing unit 4 for impacting and clearing the blockage in the sample dispensing needle 7, and the measurement and control main board 5.

[0031] The sample feeding channel 2 includes a threaded connector 201 connected to the output end of the analyzer body 6, a flow rate monitoring section 202 continuously connected below the threaded connector 201, and a blockage implementation section 204; the flow rate measurement unit 3 is located in the flow rate monitoring section 202, and the blockage clearing unit 4 is located in the blockage implementation section 204.

[0032] The blockage clearing unit 4 includes a connecting port located on one side of the clearing implementation section 204, a self-push limiting valve 401 rotatably located at the connecting port, a fluid input channel 402 connected to the connecting port, a high-pressure water pump 403 connected to the input end of the fluid input channel 402, an air injection pipe 405 connected to the fluid input channel 402, and an air pump 404 connected to the input end of the air injection pipe 405.

[0033] like Figure 1 and Figure 3 As shown in this embodiment of the invention, the flow velocity measurement unit 3 includes:

[0034] A pair of opposite magnetic poles 301 are positioned on the wall of the flow velocity monitoring section 202, and a pair of electrodes 302 are positioned at an intersection with the magnetic poles 301 and are located on the inner wall of the flow velocity monitoring section 202.

[0035] like Figure 1 As shown in this embodiment of the present invention, the main housing 100 has a cleaning sub-cavity 110 filled with cleaning fluid on its side wall.

[0036] like Figure 1 As shown in this embodiment of the utility model, the main housing 100 has a tool storage cavity 120 on its side wall, and a drain needle 121 is inserted into the tool storage cavity 120.

[0037] like Figure 1 and Figure 2 As shown in this embodiment of the utility model, the sampling channel 2 includes an expansion and slowing section 203 located between the flow rate monitoring section 202 and the dredging implementation section 204.

[0038] like Figure 2 As shown in this embodiment of the utility model, the blockage clearing unit 4 includes: a mixing protrusion 406 disposed at the connection port for enhancing gas-liquid mixing.

[0039] like Figure 2 As shown in this embodiment of the invention, the blockage clearing unit 4 includes:

[0040] A back-attracting magnet 407 is provided at the connection port; the self-push limiting valve 401 is made of iron.

[0041] like Figure 1 As shown in this embodiment of the utility model, the measurement and control motherboard 5 is equipped with a buzzer.

[0042] Working principle of this utility model:

[0043] S100: Under the control of the analyzer body 6, liquid is drawn in and ejected from the sampling needle 7. During the process, the liquid passing through the flow rate monitoring section 202 passes through the magnetic field generated by the magnetic pole 301, so the flowing liquid is regarded as cutting magnetic field lines. An electrical signal is generated at the electrode 302. The change in liquid flow rate will reflect different electrical information, thus realizing flow rate measurement. During the process, by adding an expansion slow flow section 203, the flow rate is slowed down by increasing the cross-section when the liquid is drawn in, which is beneficial to improving the flow rate measurement resolution and accuracy to a certain extent. The actual flow rate is compared with the theoretical flow rate value through the communication between the measurement and control motherboard 5 and the analyzer body 6 to automatically identify the blockage status.

[0044] S200: When a blockage is detected in the sampling needle, the buzzer sounds to alert the staff to remove the sample below the sampling needle and place it in any container. The high-pressure water pump 403 is then started to inject high-pressure water from the connection port and pass through the sampling needle, thereby impacting the internal blockage. Furthermore, gas is added to the high-speed water flow by the air pump 404, and under the mixing action of the mixing protrusion 406, the original pure water flow impact is transformed into a cavitation water jet impact, which increases the impact vibration frequency on the blockage and enhances the impact effect.

[0045] S300: When the blockage clearing unit 4 fails to function, the sample dispensing needle 7 can be manually unscrewed, and the blockage can be manually cleared using the cleaning sub-chamber 110 and the clearing needle 121.

[0046] In this embodiment of the invention, gas is introduced into the high-speed water flow by the air pump 404, and under the mixing action of the mixing protrusion 406, the original pure water flow impact is transformed into cavitation water jet impact, which increases the impact vibration frequency on the blockage point and enhances the impact effect. In addition, by using the electromagnetic principle, the liquid passing through the flow velocity monitoring section 202 will pass through the magnetic field generated by the magnetic pole 301, so the liquid flowing through is regarded as cutting the magnetic field lines, generating an electrical signal at the electrode 302 to realize flow velocity measurement, and finally realize the automatic monitoring effect of the blockage state. At the same time, the buzzer reminds the staff to wake up in time, improving the real-time performance of troubleshooting.

[0047] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A urine and feces analyzer sample adding needle clogging state monitoring and dredging device, characterized in that, The utility model relates to an analytical instrument, including: The main casing (100) fixed in the analyzer main body (6), the sample adding channel (2) arranged in the main casing (100), the sample adding needle (7) installed in the output end below the sample adding channel (2), the flow velocity measuring unit (3) for monitoring the flow velocity value in the sample adding channel (2), the blockage dredging unit (4) for impacting and dredging the block in the sample adding needle (7), the measurement and control mainboard (5); The sample adding channel (2) includes the threaded connector (201) connected with the output end of the analyzer main body (6), the flow velocity monitoring section (202) connected with the threaded connector (201) below and the dredging implementation section (204) connected with the flow velocity monitoring section (202) below, the flow velocity measuring unit (3) is arranged in the flow velocity monitoring section (202), and the blockage dredging unit (4) is arranged in the dredging implementation section (204); The blockage dredging unit (4) includes the communication port arranged on one side of the dredging implementation section (204), the self-propelled limiting valve (401) rotatably arranged in the communication port, the fluid input channel (402) connected with the communication port, the high-pressure water pump (403) connected with the input end of the fluid input channel (402), the air injection pipe (405) connected with the fluid input channel (402), and the air pump (404) connected with the input end of the air injection pipe (405).

2. The clogging state monitoring and dredging device for the sample adding needle of the urine and feces analyzer according to claim 1, characterized in that, The flow velocity measuring unit (3) includes: The pair of magnetic poles (301) arranged on the pipe wall of the flow velocity monitoring section (202) and the pair of electrodes (302) arranged on the inner wall of the flow velocity monitoring section (202) and kept in the cross position with the magnetic poles (301).

3. The clogging state monitoring and dredging device for the sample adding needle of the urine and feces analyzer according to claim 1, characterized in that, The side wall of the main casing (100) is provided with the cleaning auxiliary cavity (110) filled with cleaning liquid.

4. The clogging state monitoring and dredging device for the sample adding needle of the urine and feces analyzer according to claim 3, characterized in that, The side wall of the main casing (100) is provided with the tool storage cavity (120), and the dredging needle (121) is inserted and arranged in the tool storage cavity (120).

5. The clogging state monitoring and unblocking device for the sample adding needle of the urine and feces analyzer according to claim 1, characterized in that, The sample adding channel (2) includes the expansion and slow-flow section (203) arranged between the flow velocity monitoring section (202) and the dredging implementation section (204).

6. The clogging state monitoring and unclogging device for the sample adding needle of a urine and feces analyzer according to claim 1, characterized in that, The blockage dredging unit (4) includes the mixed flow protruding part (406) arranged at the communication port for strengthening the gas-liquid mixing.

7. The clogging state monitoring and unclogging device for the sample adding needle of the urine and feces analyzer according to claim 1, characterized in that, The blockage dredging unit (4) includes: The back-suction magnet (407) arranged at the communication port, and the self-propelled limiting valve (401) is made of iron.

8. The clogging state monitoring and dredging device for the sample adding needle of the urine and feces analyzer according to any one of claims 1-7, characterized in that, The measurement and control mainboard (5) is provided with a buzzer.

Images