Portable urine flow rate detection device and urine flow rate detection method

By designing a convenient urine flow rate detection device, the adjustable flow valve and laser sensor are used to simplify urine flow rate detection, solving the problems of high cost and complex maintenance in the existing technology, and achieving a low-cost and easy-to-maintenance urine flow rate Testing is suitable for preliminary evaluation of urination function.

CN119318487APending Publication Date: 2025-01-17AFFILIATED HUSN HOSPITAL OF FUDAN UNIV
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Patent Information

Application Number
CN202411696467.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-01-17

AI Technical Summary

Technical Problem

The existing urine flow rate detection device is costly, complex in maintenance, and is not suitable for low-cost and easy-to-maintenance needs. It is only used as a preliminary qualitative examination and requires other medical examinations to be confirmed in the future.

Method used

A convenient urine flow rate detection device is designed, including a container with an adjustable flow valve and a laser sensor. By controlling the discharge flow rate and observing the accumulated amount of urine, the urine flow rate is evaluated using windows and multi-color signal lights to simplify the detection process. .

Benefits of technology

It realizes low-cost and easy-to-maintain urine flow rate detection, can roughly check urination function, simplify operation and maintenance, reduce operation and maintenance costs, and is suitable for promotion and use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a portable urine flow rate detection device and a urine flow rate detection method, and the detection device comprises a lower housing which is internally provided with a first container; the upper shell is connected to the upper portion of the lower shell, a window is arranged on the side wall of the upper shell, and a liquid inlet guide pipe is arranged on the upper shell; the second container is connected to the lower shell and located in the upper shell, and a liquid discharge pipe is arranged at the bottom of the second container. According to the portable urine flow rate detection device and the urine flow rate detection method, the container capable of controlling the liquid discharge flow is arranged, the maximum cumulant of the urine remaining in the container can be controlled by controlling the liquid discharge flow, and the height reached by the maximum cumulant of the urine can serve as the evaluation basis of the urine flow rate. Only the specific liquid level height is defined on the surface of the container, whether urination is obstructed or not is qualitatively analyzed by comparing whether urination urine is higher than the liquid level or not, urine flow rate changes in the complete urination process do not need to be analyzed, and the device is simple in structure, convenient to use and low in operation and maintenance cost.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical detection equipment, and in particular to a portable urine flow rate detection device and a detection method. Background Art

[0002] Uroflowmetry is a non-invasive test that measures the amount of urine (mL) discharged per unit time (s) to assess the urethral patency and urination function of the patient, and to determine whether the patient has abnormalities such as urinary tract obstruction. The most important indicator of uroflowmetry is the maximum urinary flow rate, and other indicators include urine volume (mL), urination duration (s), etc. At present, most uroflowmetry detectors include brackets, funnels, urine collection cups, metering and data acquisition instruments, sensors, batteries and chargers, computer analysis software, printers, etc., with high costs, complex systems, and difficult maintenance. Uroflowmetry is only a qualitative initial test method to evaluate whether the urethral patency of the patient meets the standard. Other medical examinations are required for diagnosis. Therefore, expensive and sophisticated testing instruments are not required. Lower-cost and easy-to-maintain uroflowmetry devices are more suitable. Summary of the invention

[0003] In view of the technical problems existing in the urine flow rate detection device in the prior art, the first aspect of the present invention provides a portable urine flow rate detection device, comprising:

[0004] A lower shell body, in which a first container is arranged;

[0005] An upper shell body is connected to the upper part of the lower shell body, a side wall of the upper shell body is provided with a viewing window, and a liquid inlet conduit is provided on the upper shell body;

[0006] The second container is connected to the lower shell and is located inside the upper shell. A discharge pipe is provided at the bottom of the second container. The discharge pipe is located above the first container. A flow valve is provided on the discharge pipe to control the flow from the second container to the first container. The flow valve is a valve or a plurality of simple flow switches. Different flow switches correspond to different flow gears. The liquid flow from the second container to the first container is adjusted by adjusting the opening and closing of the valve or flow switch.

[0007] The upper end of the second container is connected to the lower end of the liquid inlet conduit, and the liquid inlet conduit is constructed to have a smooth inner surface, and the inner surface is set to be an inwardly concave arc surface, which can be tangent to the trajectory of urine entering from the liquid inlet;

[0008] The second container is provided with a scale mark, and the scale mark includes at least two marking lines;

[0009] After urine continues to enter the second container, if urine accumulates in the second container, it means that the maximum urine flow rate entering the second container is greater than the first urine flow rate. When the maximum accumulated urine volume in the second container is higher than the first mark line, it means that the maximum urine flow rate entering the second container is greater than the second urine flow rate. When the maximum accumulated urine volume in the second container is higher than the second mark line, it means that the maximum urine flow rate entering the second container is greater than the third urine flow rate.

[0010] Preferably, the viewing windows are arranged on at least three side walls of the upper shell.

[0011] Preferably, an inclined plane is provided above the upper shell body, the liquid inlet end of the liquid inlet conduit is connected to the inclined plane, and the angle between the inclined plane and the horizontal plane support is greater than 70 degrees.

[0012] Preferably, the liquid inlet conduit comprises a first curved surface and a second curved surface, the first curved surface is far away from the inclined surface, the second curved surface is close to the inclined surface, and the surface curvature of the first curved surface is smaller than the surface curvature of the second curved surface.

[0013] Preferably, the second container is constructed to include a first part and a second part, the first part is located below the liquid inlet conduit, the side wall of the second container is perpendicular to the horizontal plane, the angle between the first curved surface and the side wall of the second container is an obtuse angle, the bottom of the second curved surface is smoothly connected to the side wall of the second container, and the second part is close to the window.

[0014] Preferably, the first part and the second part of the second container are separated by a filter screen, the mesh number of the filter screen is 32-64 meshes, and the scale mark is arranged on the side of the second part close to the window.

[0015] A second aspect of the present invention provides a method for detecting urine flow rate, using the above-mentioned portable urine flow rate detection device, comprising the following steps:

[0016] Step 1: Adjust the opening of the flow valve;

[0017] Step 2: The person to be tested urinates toward the liquid inlet, so that the urine flows into the second container along the liquid inlet catheter;

[0018] Step 3: During this process, observe the urine level in the second container through the viewing window;

[0019] Step 4. If urine accumulates in the second container, it means that the maximum urine flow rate entering the second container is greater than the first urine flow rate; if the maximum accumulated urine volume in the second container is higher than the first mark line, it means that the maximum urine flow rate entering the second container is greater than the second urine flow rate; if the maximum accumulated urine volume in the second container is higher than the second mark line, it means that the maximum urine flow rate entering the second container is greater than the third urine flow rate.

[0020] The third aspect of the present invention provides a portable urine flow rate detection device, which also includes a laser sensor and a controller;

[0021] The laser sensors are arranged on both sides of the second part for detecting the height of urine in the second part, and the controller includes a multi-color signal light, and the controller is arranged to display signal lights of different colors according to a preset urine height;

[0022] Among them, the controller presets parameters of different gears according to the opening of the flow valve. Each gear parameter includes a minimum parameter and a maximum parameter. The multi-color signal lights include red, blue and green lights. When the liquid level is lower than the minimum parameter, the controller controls the red light to turn on. When the liquid level is between the minimum parameter and the maximum parameter, the controller controls the blue light to turn on. If the liquid level is higher than the maximum parameter, the controller controls the green light to turn on.

[0023] A fourth aspect of the present invention provides a method for detecting urine flow rate, using the above-mentioned portable urine flow rate detection device, comprising the following steps:

[0024] Step 1: Adjust the opening of the flow valve according to the needs of the person to be inspected;

[0025] Step 2: The person to be tested urinates toward the liquid inlet, so that the urine flows into the second container along the liquid inlet catheter;

[0026] Step 3. The controller controls the signal light to display different colors according to the liquid level of urine. For example, a green light indicates that urination is unobstructed, a blue light indicates that urination may be obstructed, and a red light indicates that urination is obstructed.

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] The present invention provides a convenient urine flow rate detection device and detection method, wherein a container capable of controlling the discharge flow rate is provided, and the maximum accumulated amount of urine remaining in the container can be controlled by controlling the discharge flow rate, and the height reached by the maximum accumulated amount of urine can be used as a basis for evaluating the urine flow rate. In the present application, only a specific liquid level height is defined on the surface of the container, and by comparing whether the urine discharged by the person to be tested is higher than the liquid level, a rough inspection is made as to whether the urination of the person to be tested is obstructed, and there is no need to analyze the urine flow rate changes during the complete urination process. The device has a simple structure and low operation and maintenance costs, and can effectively complete a rough inspection and evaluation of the urination function of the person to be tested, which is conducive to its popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of a portable urine flow rate detection device according to an embodiment of the present invention;

[0030] Figure 2 is a schematic cross-sectional structural diagram of a portable urine flow rate detection device according to an embodiment of the present invention;

[0031] Figure 3 is a schematic diagram of the cross-sectional structure of a liquid inlet conduit according to an embodiment of the present invention;

[0032] Figure 4 It is a schematic structural diagram of a second container according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to better understand the technical content of the present invention, specific embodiments are given in conjunction with the accompanying drawings as follows. It should be noted that the flow rate and urine flow rate parameters used are only used for exemplary description and have no medical guidance significance.

[0034] Example 1

[0035] like Figure 1 As shown, a portable urine flow rate detection device includes a lower shell 10, an upper shell 20 and a second container 30. The lower shell 10 and the upper shell 20 are both plastic shells. The upper shell 20 is located above the lower shell 10. A first container 12 is provided inside the lower shell 10. The upper shell 20 is detachably connected to the top of the lower shell 10.

[0036] like Figure 2 As shown, four pins 24 are provided at the bottom of the upper shell 20, and a plug hole is provided on the lower shell 10. When installing the upper shell 20, the pins 24 can be inserted into the plug hole.

[0037] A transparent cover plate 11 is provided on the outer side of the lower shell 10. The transparent cover plate 11 can be opened to facilitate taking out and placing the first container 12 inside. The first container is intended to collect urine flowing into the second container 30 and can be dumped after being full.

[0038] Furthermore, the second container 30 is connected to the lower shell 10 and is located inside the upper shell 20. A drain pipe 35 is provided at the bottom of the second container 30. The drain pipe 35 is located above the first container 12. A flow valve 34 is provided on the drain pipe 35 for controlling the maximum flow from the second container 30 to the first container 12.

[0039] A liquid inlet conduit 22 is provided on the upper shell 20, and a viewing window 202 is provided on the side wall of the upper shell 20, wherein the upper end of the second container 30 is connected to the lower end of the liquid inlet conduit 22, and the liquid inlet conduit 22 is constructed to have a smooth inner surface, and the inner surface is set to be an inwardly concave arc surface, which can be tangent to the trajectory of urine entering from the liquid inlet 21.

[0040] In this way, the person to be tested can urinate in the direction of the liquid inlet 21, and the urine flows into the second container 30 along the liquid inlet conduit 22, and finally flows into the first container 12 through the discharge pipe 35 for urine collection. In this process, since the flow valve 34 controls the maximum discharge flow of the second container 30, it is possible to determine whether the urine flow rate of the person to be tested is qualified by adjusting the maximum discharge flow of the discharge pipe 35. In addition, the person to be tested or the medical staff can observe the maximum accumulated amount of urine in the second container 30 inside through the window 202.

[0041] Assuming that the flow rate set at the flow valve 34 is 13 ml / s, when the person to be examined is urinating, if urine accumulates in the second container 30, it means that the urine flow rate of the person to be examined is greater than 13 ml / s.

[0042] The second container 30 is provided with scale marks, and the scale marks include at least two marking lines; after urine continues to enter the second container 30, if urine accumulates in the second container 30, it means that the maximum urine flow rate entering the second container 30 is greater than the first urine flow rate, when the maximum accumulated urine volume in the second container 30 is higher than the first marking line, it means that the maximum urine flow rate entering the second container 30 is greater than the second urine flow rate, and when the maximum accumulated urine volume in the second container 30 is higher than the second marking line, it means that the maximum urine flow rate entering the second container 30 is greater than the third urine flow rate.

[0043] Assuming that the person to be tested is a male aged 40 to 60, the first urine flow rate is set to 13 ml / s, the second urine flow rate is set to 18 ml / s, and the third urine flow rate is set to 22 ml / s based on existing medical experience. A urine flow rate less than 13 ml / s indicates obvious urination disorder, between 13 ml / s-18 ml / s indicates urination disorder, between 18 ml / s-22 ml / s indicates possible urination disorder, and greater than 22 ml / s indicates no urination disorder.

[0044] The flow rate set at the flow valve 34 is 13 ml / s. According to the urination time, urine flow rate and the size of the second container of different groups of people determined by existing medical experience, the first marking line is set at the a capacity of the second container 30 (corresponding to the second urine flow rate marking line), and the second marking line is set at the b capacity of the second container 30 (corresponding to the third urine flow rate marking line).

[0045] During the test, the person to be tested urinates. During the entire urination process, if no urine is accumulated in the second container 30, it is judged that the urine flow rate of the person to be tested is less than 13 ml / s, and there is obvious urination disorder; if the height of the maximum accumulated urine volume in the second container 30 is below the first mark line, it is roughly judged that the urine flow rate of the person to be tested is between 13 ml / s-18 ml / s, and there is urination disorder; if the height of the maximum accumulated urine volume in the second container 30 is between the first mark line and the second mark line, it is roughly judged that the urine flow rate of the person to be tested is between 18 ml / s-22 ml / s, and there may be urination disorder; if the height of the maximum accumulated urine volume in the second container 30 is higher than the second mark line, it is roughly judged that the urine flow rate of the person to be tested is greater than 22 ml / s, and there is no urination disorder.

[0046] Furthermore, the windows 202 are disposed on at least three side walls of the upper housing 20 .

[0047] In this way, when the person to be examined is urinating, the companion or medical staff can observe the maximum accumulated urine volume in the second container 30 through the window 202 to determine whether the person to be examined currently has urination difficulty and the degree of urination difficulty.

[0048] In an optional embodiment, an inclined surface 201 is provided above the upper shell 20, the liquid inlet end of the liquid inlet conduit 22 is connected to the inclined surface 201, and the angle between the inclined surface 201 and the horizontal plane support is greater than 70 degrees.

[0049] It can be understood that when the person to be tested urinates, the inclined liquid inlet 21 is conducive to the urine entering the liquid inlet conduit 22 along the inner wall of the liquid inlet conduit 22. Since urine has impact force, when the urine enters the liquid inlet conduit 22 along the inner wall of the liquid inlet conduit 22, it can flow downward along the inner wall of the liquid inlet conduit 22, thereby reducing the foam generated by the urine falling into the second container 30 and the interference with the liquid level fluctuation.

[0050] In a more preferred embodiment, Figure 3 As shown, the liquid inlet conduit 22 includes a first arc surface 221 and a second arc surface 222 . The first arc surface 221 is away from the inclined surface 201 , and the second arc surface 222 is close to the inclined surface 201 . The curvature of the first arc surface 221 is smaller than that of the second arc surface 222 .

[0051] When the person to be tested urinates into the liquid inlet 21, the urine can adhere to the surface of the first curved surface 221 along the tangential direction, so that the urine can flow smoothly downward, and the last part of the urine can also flow smoothly downward through the inner wall of the second curved surface 222, which can avoid uneven urine distribution caused by impact and lead to inaccurate urine flow rate.

[0052] like Figure 4 As shown, the second container 30 is constructed to include a first part 31 and a second part 32, the first part 31 is located below the liquid inlet conduit 22, the side wall of the second container 30 is perpendicular to the horizontal plane, the angle between the first curved surface 221 and the side wall of the second container 30 is an obtuse angle, the lower part of the second curved surface 222 is smoothly connected to the side wall of the second container 30, and the second part 32 is close to the window 202.

[0053] Among them, the first part 31 is connected to the bottom of the liquid inlet conduit 22, and the two are connected by a sealing ring 23 to prevent urine flowing down the liquid inlet conduit 22 from entering the outside of the second container 30. Since the urine flows to the first part 31 through the lower end of the liquid inlet conduit 22 and gradually accumulates in the second container 30, there is no urine flowing down above the second part 32 during this process. Therefore, the liquid level in the second part 32 is more stable and is not easily affected by water droplets to cause liquid level fluctuations.

[0054] Furthermore, the first part 31 and the second part 32 of the second container 30 are separated by a filter screen 33 , the mesh number of the filter screen 33 is 32-64 meshes, and a scale mark is set on a side of the second part 32 close to the window 202 .

[0055] In this way, the foam generated in the first part 31 can be filtered or punctured by the filter 33, so as to prevent the foam in the second part 32 from affecting the actual liquid level.

[0056] Example 2

[0057] A method for detecting urine flow rate, using the portable urine flow rate detection device in Example 1, comprises the following steps:

[0058] Step 1: Adjust the opening of the flow valve 34;

[0059] Step 2: The person to be tested urinates toward the liquid inlet 21, so that the urine flows into the second container 30 along the liquid inlet conduit 22;

[0060] Step 3: During the entire urination process, observe the maximum accumulated urine volume in the second container 30 through the viewing window 202;

[0061] Step 4: If no urine is accumulated in the second container 30, it is judged that the urine flow rate of the person to be tested is less than 13 ml / s, and there is obvious urination disorder; if the height of the maximum accumulated urine volume in the second container 30 is below the first mark line, it is roughly judged that the urine flow rate of the person to be tested is between 13 ml / s-18 ml / s, and there is urination disorder; if the height of the maximum accumulated urine volume in the second container 30 is between the first mark line and the second mark line, it is roughly judged that the urine flow rate of the person to be tested is between 18 ml / s-22 ml / s, and there may be urination disorder; if the height of the maximum accumulated urine volume in the second container 30 is higher than the second mark line, it is roughly judged that the urine flow rate of the person to be tested is greater than 22 ml / s, and there is no urination disorder.

[0062] In this embodiment, the height of urine accumulated in the second container 30 is mainly observed by the family members or medical staff of the person to be examined through the window 202, and this is used as the basis for judging the urine flow rate. The first marking line and the second marking line can also be used as rough inspection evaluation standards for people of different ages. If the person to be examined is over 60 years old, as long as the height of the maximum accumulated urine in the second container 30 is higher than the first marking line, urination dysfunction can be basically ruled out. If the person to be examined is between 40 and 60 years old, as long as the accumulated urine in the second container 30 exceeds the second marking line, urination dysfunction can be basically ruled out.

[0063] Example 3

[0064] A portable urine flow rate detection device further includes a laser sensor 40 and a controller 50.

[0065] The difference from the above-mentioned urine flow rate detection device is that the urine flow rate detection device proposed in this embodiment uses a laser sensor 40 to detect the liquid level.

[0066] Furthermore, laser sensors 40 are disposed on both sides of the second portion 32 for detecting the height of urine in the second portion 32, and the controller 50 includes a multi-color signal light, and the controller 50 is configured to display signal lights of different colors according to a preset urine height.

[0067] It can be understood that since the second part 32 does not have urine adhering to the wall and flowing down, but only includes accumulated urine and air, the liquid level of the urine has obvious stratification, and the position of the liquid level height can be detected by the laser sensor 40.

[0068] The laser sensor 40 includes a light transmitter 41 and a light receiver 42. The light transmitter 41 is a linear light source, and the light receiver 42 is a linearly distributed optical fiber receiver, which can receive light signals at each height layer. For example, if the urine is at the height of the a capacity mark in the container, the light signal below the a capacity mark is different from the light signal above the a capacity mark, which is used as the basis for judging the liquid level.

[0069] Furthermore, the controller 50 presets parameters of different gears according to the opening of the flow valve 34, and each gear parameter includes a minimum parameter and a maximum parameter. It should be understood that due to different age groups, the standards for whether the urine flow rate meets the standard are different. Therefore, for different age groups, the controller 50 provides corresponding virtual marking lines, and each age group corresponds to a different opening range of the flow valve 34.

[0070] Furthermore, the multi-color signal lights of the controller 50 include a red light, a blue light, and a green light. When the liquid level is lower than the minimum parameter, the controller 50 controls the red light to turn on. When the liquid level is between the minimum parameter and the maximum parameter, the controller 50 controls the blue light to turn on. If the liquid level is higher than the maximum parameter, the controller 50 controls the green light to turn on. Lights of different colors correspond to different maximum urine cumulative volume detection values.

[0071] It should be understood that the opening of the flow valve 34 can be set to 100%, 75%, 50%, etc., each opening corresponds to an age group of people to be inspected, and the controller 50 sets different virtual liquid level heights according to the standard.

[0072] Example 4

[0073] A method for detecting urine flow rate, using the portable urine flow rate detection device in Example 3 for detection, comprises the following steps:

[0074] Step 1: Adjust the opening of the flow valve 34 according to the characteristics of the target person to be inspected;

[0075] Step 2: The person to be tested urinates toward the liquid inlet 21, so that the urine flows into the second container 30 along the liquid inlet conduit 22;

[0076] Step 3, the controller 50 controls the signal light to display different colors according to the liquid level of urine, wherein a green light indicates no obstacle, a blue light indicates a suspected obstacle, and a red light indicates a functional disorder.

[0077] The difference from the above detection method is that the detection method shown in this embodiment does not require observation by the person to be tested or medical staff. After urinating, the person to be tested can judge whether there is any urination obstruction based on the color of the signal light.

[0078] In combination with the above embodiments, the present application sets up a container that can control the maximum flow rate of liquid discharge. By controlling the maximum flow rate of liquid discharge, the accumulated amount of urine remaining in the container can be controlled. The maximum height that the accumulated amount of urine can reach can be used as a basis for evaluating the urine flow rate. In the present application, only a specific liquid level height is defined on the surface of the container. By comparing whether the urine discharged by the person to be tested is higher than the liquid level, a rough inspection basis is made for whether the urination of the person to be tested is obstructed. There is no need to analyze the changes in urine flow rate during the complete urination process, and the urination function of the person to be tested can be effectively roughly inspected and qualitatively evaluated. The device has a simple structure, low cost, and convenient operation and maintenance, which is conducive to popularization and application.

Claims

1. A portable urine flow rate detection device, characterized in that: include: A lower shell (10) having a first container (12) disposed therein; An upper shell (20) is connected to the upper part of the lower shell (10), a side wall of the upper shell (20) is provided with a viewing window (202), and a liquid inlet conduit (22) is provided on the upper shell (20); a second container (30) connected to the lower housing (10) and located inside the upper housing (20); a drain pipe (35) is provided at the bottom of the second container (30); the drain pipe (35) is located above the first container (12); a flow valve (34) is provided on the drain pipe (35) for controlling the flow rate from the second container (30) to the first container (12); The upper end of the second container (30) is connected to the lower end of the liquid inlet conduit (22), and the liquid inlet conduit (22) is constructed to have a smooth inner surface, and the inner surface is set to be an inwardly concave arc surface, which is tangent to the trajectory of urine entering from the liquid inlet (21); The second container (30) is provided with a scale mark, and the scale mark includes at least two marking lines; After urine continues to enter the second container (30), if urine accumulates in the second container (30), it means that the maximum urine flow rate entering the second container (30) is greater than the first urine flow rate. When the maximum accumulated urine volume in the second container (30) is higher than the first mark line, it means that the maximum urine flow rate entering the second container (30) is greater than the second urine flow rate. When the maximum accumulated urine volume in the second container (30) is higher than the second mark line, it means that the maximum urine flow rate entering the second container (30) is greater than the third urine flow rate.

2. A portable urine flow rate detection device according to claim 1, characterized in that: The viewing windows (202) are arranged on at least three side walls of the upper shell (20).

3. A portable urine flow rate detection device according to claim 1, characterized in that: An inclined surface (201) is provided above the upper shell (20), the liquid inlet end of the liquid inlet conduit (22) is connected to the inclined surface (201), and the angle between the inclined surface (201) and the horizontal plane support is greater than 70 degrees.

4. A portable urine flow rate detection device according to claim 3, characterized in that: The liquid inlet conduit (22) comprises a first curved surface (221) and a second curved surface (222), the first curved surface (221) being away from the inclined surface (201), the second curved surface (222) being close to the inclined surface (201), and the surface curvature of the first curved surface (221) being smaller than the surface curvature of the second curved surface (222).

5. A portable urine flow rate detection device according to claim 4, characterized in that: The second container (30) is constructed to include a first part (31) and a second part (32), the first part (31) is located below the liquid inlet conduit (22), the side wall of the second container (30) is perpendicular to the horizontal plane, the angle between the first curved surface (221) and the side wall of the second container (30) is an obtuse angle, the lower part of the second curved surface (222) is smoothly connected to the side wall of the second container (30), and the second part (32) is close to the window (202).

6. A portable urine flow rate detection device according to claim 5, characterized in that: The first part (31) and the second part (32) of the second container (30) are separated by a filter (33), the mesh number of the filter (33) is between 32 and 64, and a scale mark is arranged on a side of the second part (32) close to the window (202).

7. A method for detecting urine flow rate, characterized in that: Using the portable urine flow rate detection device according to any one of claims 2 to 6 comprises the following steps: Step 1: Adjust the opening of the flow valve (34); Step 2: The person to be tested urinates toward the liquid inlet (21), so that the urine flows into the second container (30) along the liquid inlet conduit (22); Step 3: During this process, the urine level in the second container (30) is observed through the viewing window (202); Step 4: If urine accumulates in the second container (30), it means that the maximum urine flow rate entering the second container (30) is greater than the first urine flow rate. If the maximum accumulated urine volume in the second container (30) is higher than the first mark line, it means that the maximum urine flow rate entering the second container (30) is greater than the second urine flow rate. If the maximum accumulated urine volume in the second container (30) is higher than the second mark line, it means that the maximum urine flow rate entering the second container (30) is greater than the third urine flow rate.

8. A portable urine flow rate detection device according to claim 6, characterized in that: Also includes a laser sensor (40) and a controller (50); The laser sensors (40) are arranged on both sides of the second part (32) for detecting the height of urine in the second part (32), and the controller (50) comprises a multi-color signal light, and the controller (50) is configured to display signal lights of different colors according to a preset urine height; The controller (50) presets parameters of different gears according to the opening of the flow valve (34), each gear parameter includes a minimum parameter and a maximum parameter, and the multi-color signal light includes a red light, a blue light and a green light. When the liquid level is lower than the minimum parameter, the controller (50) controls the red light to turn on, when the liquid level is between the minimum parameter and the maximum parameter, the controller (50) controls the blue light to turn on, and if the liquid level is higher than the maximum parameter, the controller (50) controls the green light to turn on.

9. A method for detecting urine flow rate, characterized in that: Using the portable urine flow rate detection device according to claim 8 comprises the following steps: Step 1, adjusting the opening of the flow valve (34); Step 2: The person to be tested urinates into the liquid inlet (21), so that the urine flows into the second container (30) along the liquid inlet conduit (22); Step 3: The controller (50) controls the signal light to output signals of different colors according to the liquid level of the maximum accumulated urine volume.

10. A portable urine flow rate detection device according to claim 1, characterized in that: The flow valve is a valve or a plurality of flow switches, and different flow switches correspond to different flow gears.