Urine collection system capable of preventing cross contamination and used for urine three-cup test

Abstract

The utility model discloses a urine collecting system capable of preventing cross contamination and used for a urine three-cup test. The urine collecting system comprises a urine guiding pipeline unit, a flow control processing box and urine cups, the flow control processing box and the urine guiding pipeline unit are arranged to be two independent bodies, so that the urine guiding pipeline unit can be realized through a plastic pipeline, the cost is low, the urine guiding pipeline unit can be used as a disposable consumable and can be directly discarded after being used by a patient, mutual pollution among patients is prevented, and the reliability of a medical diagnosis result of a urine three-cup test is improved; a tail-section urine monitoring sensor is adopted to monitor the change of the liquid level state of the urine receiving funnel close to the port, if the liquid level drops to the port of the urine receiving funnel, the patient stops urinating, the urine section is tail-section urine, and the pipeline control valve group is commanded to control the urine guiding pipeline unit, so that the urine section enters a third urine cup; according to the scheme, the overflow connector is arranged at the position close to the funnel opening, the length of a urine flow public main road flow section is reduced as much as possible, and therefore mutual pollution between urine sections is prevented.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of urine collection technology for the three-glass urine test, and more specifically, relate to a urine collection system for the three-glass urine test that prevents cross-contamination. Background Technology

[0002] The three-glass urine test is a commonly used diagnostic tool in urology, used to initially locate the source of hematuria or pyuria. This method involves dividing urine into three segments—the first, middle, and last—during a continuous urination process and collecting each segment in a separate container for analysis. Abnormalities in each sample are then used to infer the location of the lesion. The procedure is as follows: During a continuous urination, the first 10-20 mL is collected as the first glass of urine, the last 10 mL as the third glass, and the middle portion as the second glass. If the test results show hematuria or pyuria, the urine is considered abnormal. The location of the lesion is then preliminarily determined based on the results of each sample. More specifically, an abnormal first glass suggests a lesion in the urethra; an abnormal third glass suggests a lesion in the posterior urethra, bladder neck, or trigone; and abnormal results in all three glasses suggest a lesion in the bladder or upper urinary tract. Although the three-glass urine test is of significant diagnostic value for patients with hematuria or pyuria, its clinical application is inconvenient due to the need for precise segmentation and collection of urine samples at different stages of urination. This inconvenience can lead to inaccurate sample collection, particularly since the initial and final urine volumes are difficult to control, thus affecting the accuracy of subsequent analysis. Therefore, proposing a urine collection system that facilitates the three-glass urine test is of great significance for promoting the high-quality clinical application of the test.

[0003] To address the aforementioned technical problems, Chinese invention patent CN117860305A discloses a field of urine collection auxiliary device technology, specifically relating to a disposable, simple, and precise three-cup urine collection device. The device includes a urine collector, the bottom of which is detachably connected to and connected to a U-shaped catheter assembly via a snap-fit. The U-shaped catheter assembly is used to collect the third segment of urine. The end of the U-shaped catheter assembly furthest from the urine collector is detachably connected to and connected to a diverter tube via a snap-fit. The bottom surface of the diverter tube near the U-shaped catheter assembly is detachably connected to and connected to a first urine collection cup via a snap-fit. The first urine collection cup is used to collect the first segment of urine. The side of the diverter tube furthest from the first urine collection cup is detachably connected to and connected to a second urine collection cup via a snap-fit. The second urine collection cup is used to collect the second segment of urine. This invention, by automatically and precisely separating and collecting the three segments of urine separately, not only facilitates patient use but also improves the work efficiency of nursing staff, the usefulness of tests, and the accuracy of diagnoses. Furthermore, Chinese utility model patent CN217886051U discloses an improved device for the three-cup urine test, including a urine cup body with an arc-shaped opening at the top; the urine cup body has a collection cavity for collecting urine, which includes a front collection cavity, a middle collection cavity, and a rear collection cavity; a first buoy is provided inside the front collection cavity; the front collection cavity includes a front side wall, and a first limiting plate for restricting the movement of the first buoy is provided at the top of the front side wall; a second buoy is provided inside the middle collection cavity; the middle collection cavity includes a middle side wall, and a second limiting plate for restricting the movement of the second buoy is provided at the top of the middle side wall; this utility model has a simple structure and ingenious design. The improved device for the three-cup urine test can automatically separate and collect the first, middle, and rear urine segments during normal urination without switching urine cups, thus improving the accuracy of the test results.

[0004] The above-mentioned patented technology has improved the accuracy of urine collection from three cups to a certain extent by designing a diversion and shunt flow path structure, but there are still the following technical problems and directions for improvement: (1) In the above-mentioned patented technology, there is a large area of ​​urine flow main channel in the diversion device, which leads to mutual contamination between the first, middle and last urine, which has a significant impact on the measurement results; (2) In the above-mentioned patented technology, due to the complex structure of the diversion channel, it is difficult to improve it into a low-cost disposable consumable. If it is reused, it will lead to mutual infection between patients; (3) The length of the urine flow main channel should be minimized as much as possible to reduce mutual contamination between the three cups of urine. At the same time, the diversion pipeline should be simplified to reduce material costs and be made into a disposable consumable to prevent mutual contamination between patients. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a urine collection system for the three-glass urine test that prevents cross-contamination. By setting the control unit and the tubing unit as two independent entities, the urine catheterization unit can be implemented through plastic tubing, which is inexpensive and can be used as a disposable consumable. It can be discarded directly after use by the patient, preventing cross-contamination between patients and improving the reliability of the medical diagnostic results of the three-glass urine test.

[0006] To achieve the above objectives, a urine collection system for the three-glass urine test, which prevents cross-contamination, comprises:

[0007] A urinary catheterization unit for collecting, diverting, and shunting urine; a flow control box and a urine cup that serve as the carrier of the urinary catheterization unit and are easy for the patient to hold;

[0008] The flow control processing box includes a box assembly consisting of a base shell and a cover shell that can be detachably closed; a status monitoring component for sensing the state of the urine cup being full and the state of the patient having finished urinating; a pipeline control valve group for controlling the flow section within the urinary catheter unit based on feedback information from the status monitoring component; and a positioning block assembly located on the inner surface of the base shell for positioning the urinary catheter unit and the urine cup.

[0009] The urinary catheterization unit includes a urinary cup that is snapped onto the upper surface of the flow control box, an overflow port located at the lower end of the urinary cup, a first U-shaped tube segment, an inverted U-shaped tube segment, a second U-shaped tube segment, and a discharge tube that are connected horizontally in sequence to the lower end of the overflow port, a first diverter tube connected to the middle section of the first U-shaped tube segment, a third diverter tube connected to the overflow port, and a second diverter tube connected to the middle section of the second U-shaped tube segment; the first diverter tube, the third diverter tube, and the second diverter tube are directly below the opening of the urinary cup.

[0010] Preferably, the housing assembly includes a handle disposed on the outer side of the base housing or the cover housing.

[0011] Preferably, the status monitoring component includes:

[0012] A full cup sensor fixed to the inner surface of the box assembly for monitoring the liquid level in the urine cup, and a final urine monitoring sensor fixed to the inner surface of the box assembly and located at the urine collection port for monitoring the liquid level drop.

[0013] Preferably, the pipeline control valve assembly includes:

[0014] A fourth control valve is provided at the inlet of the first positive U-shaped pipe section, a first control valve is provided at the first branch pipe, a second control valve is provided at the second branch pipe, and a third control valve is provided at the middle section of the inverted U-shaped pipe section.

[0015] Preferably, the overflow interface includes:

[0016] The funnel opening, the overflow loading area surrounding the funnel opening, the output port located on the lower surface of the overflow loading area and directly below the funnel opening, the baffle pipe extending upward along the output port and wrapping around the outer surface of the funnel opening to the lower end face of the funnel opening, and the overflow channel located between the inner wall of the baffle pipe and the outer wall of the funnel opening, which is the same as the passage connecting the funnel opening and the overflow loading area.

[0017] The output port is connected to the inlet of the first U-shaped pipe section.

[0018] Preferably, the urine cup is a one-piece structure.

[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] (1) The present invention provides a urine collection system for the three-glass urine test to prevent cross-contamination. By setting the control unit and the pipeline unit as two independent units, the urine catheterization pipeline unit can be realized through plastic pipeline. It is low cost and can be used as a disposable consumable. After the patient uses it, it can be directly discarded, which prevents mutual contamination between patients and improves the reference value of the medical diagnostic results of the three-glass urine test.

[0021] (2) The present invention provides a urine collection system for a three-cup urine test to prevent cross-contamination. It uses a terminal urine monitoring sensor to monitor the liquid level change near the port of the urine collection cup. If the liquid level drops to the port of the urine collection cup, it indicates that the patient has stopped urinating. This urine segment is the terminal urine segment. The command pipeline control valve group controls the catheterization pipeline unit to allow this segment of urine to enter the third urine cup. This scheme sets the overflow interface as close as possible to the funnel opening, minimizing the length of the common main flow segment of urine, thereby preventing cross-contamination between urine segments. In addition, to minimize cross-contamination between the first and second urine cups, the second control valve is controlled to close briefly when the first control valve is closed, so that the intermediate urine segment removes the residual components of the first urine segment, effectively reducing cross-contamination between the first and intermediate urine segments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the internal structure of a urine collection system for the three-glass urine test to prevent cross-contamination, according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the main structure of a urine collection system for the three-glass urine test to prevent cross-contamination according to an embodiment of the present invention;

[0024] Figure 3A partial enlarged view A shows a urine collection system for a three-glass urine test to prevent cross-contamination, according to an embodiment of this utility model.

[0025] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-flow control processing box, 100-box assembly, 101-base housing, 102-lid housing, 103-handle, 110-status monitoring assembly, 111-terminal urine monitoring sensor, 112-cup fullness sensor, 120-pipeline control valve assembly, 121-first control valve, 122-second control valve, 123-third control valve, 124-fourth control valve. Valve, 130-positioning block assembly, 2-urine catheterization unit, 201-urine collection funnel, 202-overflow interface, 2021-funnel inlet, 2022-overflow loading area, 2023-diaphragm tube, 2024-overflow channel, 203-first positive U-shaped tube section, 204-inverted U-shaped tube section, 205-second positive U-shaped tube section, 206-exhaust tube, 207-first diversion tube, 208-third diversion tube, 209-second diversion tube, 3-urine cup. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] like Figures 1-3 As shown in this embodiment of the invention, the urine collection system for the three-glass urine test to prevent cross-contamination includes:

[0031] The urinary catheterization unit 2 is used for collecting, diverting, and shunting urine; the flow control box 1, which serves as the carrier of the urinary catheterization unit 2 and is easy for the patient to handle; and the urine cup 3.

[0032] The flow control processing box 1 includes a box assembly 100 formed by a detachable cover of a base shell 101 and a cover shell 102, a status monitoring component 110 for sensing the full state of the urine cup 3 and the state of the patient urinating, a pipeline control valve group 120 for controlling the flow section of the urinary catheter unit 2 based on the feedback information from the status monitoring component 110, and a positioning block assembly 130 located on the inner surface of the base shell 101 for positioning the urinary catheter unit 2 and the urine cup 3.

[0033] The urinary catheterization unit 2 includes a urinary hopper 201 that is snapped onto the upper surface of the flow control box 1, an overflow port 202 located at the lower end of the urinary hopper 201, a first U-shaped tube segment 203, an inverted U-shaped tube segment 204, a second U-shaped tube segment 205 and a discharge tube 206 connected in a horizontal direction to the lower end of the overflow port 202, a first diversion tube 207 connected to the middle section of the first U-shaped tube segment 203, a third diversion tube 208 connected to the overflow port 202, and a second diversion tube 209 connected to the middle section of the second U-shaped tube segment 205; the first diversion tube 207, the third diversion tube 208 and the second diversion tube 209 are directly below the opening of the urinary cup 3.

[0034] like Figure 2 As shown in this embodiment of the present invention, the box assembly 100 includes a handle 103 disposed on the outer side of the base shell 101 or the cover shell 102.

[0035] like Figure 1 As shown in this embodiment of the present invention, the status monitoring component 110 includes:

[0036] A full-cup sensor fixed to the inner surface of the box assembly 100 for monitoring the liquid level of the urine cup 3, and a terminal urine monitoring sensor 111 fixed to the inner surface of the box assembly 100 and located at the port of the urine collection funnel 201 for monitoring the liquid level drop.

[0037] like Figure 1 As shown in this embodiment of the utility model, the pipeline control valve assembly 120 includes:

[0038] The fourth control valve 124 is located at the inlet of the first positive U-shaped pipe section 203, the first control valve 121 is located at the first diversion pipe 207, the second control valve 122 is located at the second diversion pipe 209, and the third control valve 123 is located in the middle section of the inverted U-shaped pipe section 204.

[0039] like Figure 1 and Figure 3 As shown in this embodiment of the utility model, the overflow interface 202 includes:

[0040] The funnel opening 2021, the overflow loading area 2022 surrounding the funnel opening 2021, the output port opened on the lower surface of the overflow loading area 2022 and located directly below the funnel opening 2021, the flow divider 2023 extending upward along the output port and wrapping around the outer surface of the funnel opening 2021 to the lower end face of the funnel opening 2021, and the overflow channel 2024 located between the inner wall of the flow divider 2023 and the outer wall of the funnel opening 2021, which is the same as the one that connects the funnel opening 2021 and the overflow loading area 2022;

[0041] The output port is connected to the inlet of the first U-shaped pipe section 203.

[0042] like Figure 1 As shown in this embodiment of the utility model, the urine cup 3 is a one-piece structure.

[0043] Working principle of this utility model:

[0044] First, open the box assembly 100, use the positioning block assembly 130 to install and position the entire urinary catheter unit 2, and then close the box assembly 100 to complete the assembly. Next, set the initial state of the pipeline control valve group 120 so that only the third control valve 123 is closed, while the other control valves are open. The patient holds the handle 103 and collects urine using the urine collection cup 201. The urine flows sequentially through the overflow port 202, the first U-shaped tube section 203, and the first diversion tube 207 into the first urine cup. When the cup-fullness sensor 112 detects that the first urine cup has reached full, it closes the first control valve 121 and opens the third control valve 123, completing the collection of the first cup of urine. Then, as the urine continues to flow downwards, to minimize cross-contamination between the first and second cups of urine, the second control valve 122 is briefly closed the instant the first control valve 12 is closed, allowing the intermediate urine stream to flow freely. After the first urine stream is cleared of any remaining components, the second control valve 122 is opened, allowing urine to enter the second U-shaped tube section 205 and flow into the second urine cup from the second diversion tube 209. When the cup full sensor 112 detects that the second urine cup is full, the second control valve 122 is closed, completing the collection of the second urine cup. Next, urination continues, and urine flows out from the discharge tube 206. After the patient finishes urinating, the urine level in the funnel gradually decreases and is detected by the end-of-stream urine monitoring sensor 111 near the funnel outlet, thereby controlling the closure of the fourth control valve 124. The remaining third urine in the funnel flows into the third cup through the overflow port 202, completing the three-cup urine collection. The urine cup 3 is then removed, and the entire catheterization unit 2 is discarded as a disposable consumable. A new catheterization unit 2 is then installed in the flow control processing box for the next patient to collect urine.

[0045] In this embodiment of the invention, a terminal urine monitoring sensor 111 is used to monitor the liquid level change near the port of the urine collection cup 201. If the liquid level drops to the port of the urine collection cup 201, it indicates that the patient has stopped urinating. This urine segment is the terminal urine segment. The command pipeline control valve group 120 controls the catheterization pipeline unit to allow this segment of urine to enter the third urine cup. This scheme sets the overflow interface as close as possible to the funnel opening, minimizing the length of the common main urine flow segment, thereby preventing cross-contamination between urine segments. In addition, to minimize cross-contamination between the first and second urine cups, the second control valve 122 is controlled to close briefly when the first control valve 12 is closed, allowing the intermediate urine segment to remove the residual components of the first urine segment, effectively reducing cross-contamination between the first and intermediate urine segments.

[0046] Furthermore, in this embodiment of the invention, by setting the control unit and the tubing unit as two independent entities, the urinary catheterization unit can be implemented through a plastic tubing, which is inexpensive and can be used as a disposable consumable. After use, it can be discarded directly, preventing cross-contamination between patients and improving the reliability of the three-glass urine test results.

[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 collection system for use in a urine three cup test that prevents cross contamination, characterized in that, The application relates to a urine collecting, guiding and shunting catheter line unit (2), a flow control processing box (1) serving as a carrier of the urine collecting, guiding and shunting catheter line unit (2) and facilitating the patient to hold, and a urine cup (3). The flow control processing box (1) comprises a box body assembly (100) formed by detachably covering a base shell (101) with a cover shell (102), a state monitoring assembly (110) for sensing the full state of the urine cup (3) and the urine emptying state of the patient, a line control valve group (120) for controlling the on-off of the flow section in the urine collecting, guiding and shunting catheter line unit (2) based on the feedback information of the state monitoring assembly (110), and a positioning block assembly (130) arranged on the inner surface of the base shell (101) and used for positioning the urine collecting, guiding and shunting catheter line unit (2) and the urine cup (3). The urine collecting, guiding and shunting catheter line unit (2) comprises a urine collecting funnel (201) clamped to the upper surface of the flow control processing box (1), an overflow interface (202) arranged at the lower end of the urine collecting funnel (201), a first positive U-shaped pipe section (203), an inverted U-shaped pipe section (204), a second positive U-shaped pipe section (205) and a discharge pipe (206) connected to the lower end of the overflow interface (202) in sequence in the horizontal direction, a first shunting pipe (207) connected to the middle section of the first positive U-shaped pipe section (203), a third shunting pipe (208) connected to the overflow interface (202), and a second shunting pipe (209) connected to the middle section of the second positive U-shaped pipe section (205); the first shunting pipe (207), the third shunting pipe (208) and the second shunting pipe (209) are opposite to the opening of the urine cup (3) in the lower direction. The box body assembly (100) comprises a hand holding handle (103) arranged on the outer surface of the base shell (101) or the cover shell (102).

2. The urine collecting system for preventing cross contamination in a urine test with three cups according to claim 1, wherein The state monitoring assembly (110) comprises a cup full state sensor fixed to the inner surface of the box body assembly (100) and used for monitoring the liquid level state of the urine cup (3), and a last section urine monitoring sensor (111) fixed to the inner surface of the box body assembly (100) and located at the port of the urine collecting funnel (201) and used for monitoring the liquid level drop.

3. The urine collecting system for preventing cross contamination in a urine test according to claim 1, wherein The line control valve group (120) comprises a fourth control valve (124) arranged at the inlet of the front section of the first positive U-shaped pipe section (203), a first control valve (121) arranged at the first shunting pipe (207), a second control valve (122) arranged at the second shunting pipe (209), and a third control valve (123) arranged at the middle section of the inverted U-shaped pipe section (204). The overflow interface (202) comprises 4. The urine collecting system for preventing cross contamination in a urine test according to claim 1, wherein ​ ​ 5. The urine collecting system for preventing cross contamination in a urine test according to claim 4, wherein ​ A funnel pipe mouth (2021), an overflow loading area (2022) surrounding the funnel pipe mouth (2021), an output port opened in the lower surface of the overflow loading area (2022) and located directly below the funnel pipe mouth (2021), a flow separation pipe (2023) extending upward along the output port and wrapping the outer surface of the funnel pipe mouth (2021) to the upper end surface of the funnel pipe mouth (2021), and an overflow channel (2024) between the inner wall of the flow separation pipe (2023) and the outer wall of the funnel pipe mouth (2021) penetrating through the funnel pipe mouth (2021) and the overflow loading area (2022); The output port is in communication with the inlet of the first positive U-shaped pipe section (203).

6. The urine collecting system for preventing cross contamination in a urine test with three cups according to any one of claims 1 to 5, characterized in that, The urine cup (3) is a connected structure.

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