Middle urine sampling device for urine analyzer
By adjusting the urine flow rate in real time and the device controlled by the sensor, the middle section of urine is dynamically stored, which solves the problem of mixing the anterior and tail sections of urine in traditional urine sampling, and improves the accuracy of urine analysis and sample purity.
Patent Information
- Application Number
- CN202510787055.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-13
- Publication Date
- 2025-09-05
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional urine sampling methods are difficult to accurately control the collection of middle urine, and are prone to mixing into the front and tail urine, resulting in inaccurate detection results and prone to overflow or insufficient sampling.
The rotation speed of the rotation impeller is driven by urine to reflect the urine flow in real time, dynamically adjust the capacity of storing the front part of urine, and control the electric telescopic rod and piston rod with the speed sensor to accurately store the middle part of urine, prevent backflow and pollution, and use the impact force of the water flow to clean the device.
Accurate collection of the middle section of urine is achieved, avoiding interference from the detection results, improving the accuracy of urine analysis, and ensuring the purity and cleanliness of the sample.
Smart Images
Figure CN120594166A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of urine sampling, and in particular relates to a mid-section urine sampling device for a urine analyzer. Background Art
[0002] Urinalysis is a crucial step in medical diagnosis, widely used for screening and differential diagnosis of urinary system diseases, as well as assisting in the diagnosis and treatment of other systemic diseases. Therefore, the accuracy of urinalysis results is highly dependent on the quality of the sample, especially the midstream urine collection.
[0003] Traditional urine sampling methods usually use natural urination, which is difficult to control accurately and easily mixed with the front and tail urine, affecting the accuracy of the test results. It is impossible to adjust the storage capacity in real time according to the urine flow rate, which can easily lead to overflow or insufficient sampling.
[0004] Therefore, a mid-stream urine sampling device for a urine analyzer is needed to solve the technical problems in the prior art that mid-stream urine sampling is easily mixed with front- and tail-stream urine and easily causes mid-stream urine overflow or insufficient sampling. Summary of the Invention
[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a urine mid-stream sampling device for a urine analyzer. The present application uses urine to drive the rotation speed of the rotating impeller to reflect the urine flow in real time, dynamically adjusts the capacity for storing the front urine, accurately collects the front urine, and at the same time dynamically adjusts the mid-stream urine entering the urine sampling cup, solving the technical problems of mid-stream urine overflow or insufficient sampling in the prior art, preventing backflow when sampling the front urine, avoiding interference with the test results, improving the accuracy of urine analysis, and using the impact force of the water flow to discharge and clean the residual urine, solving the technical problem of the front and tail urine being easily mixed in when sampling the mid-stream urine in the prior art.
[0006] To solve the above technical problems, the present invention adopts the following technical solutions: This solution proposes a mid-stream urine sampling device for a urine analyzer, comprising a bracket, a urine collecting funnel fixedly connected to the top wall of the bracket, a urinary catheter fixedly connected to the bottom wall of the bracket, one end of the urinary catheter being connected to the urine collecting funnel, a sampling assembly fixedly connected to one side of the bottom wall of the bracket, the sampling assembly being close to the other end of the urinary catheter, a sampling bucket fixedly connected to the guide tube, and the sampling bucket and the sampling assembly being connected via an trachea; The inner wall of the urine collecting funnel is rotatably connected to a rotating impeller, the top wall of the bracket is fixedly connected to a speed sensor, and one end of the rotating impeller rotates through the urine collecting funnel and is in contact with the speed sensor.
[0007] Preferably, a water inlet plate is fixedly connected to the upper part of the inner circumferential wall of the sampling barrel, a water inlet one-way valve is fixedly connected to the water inlet plate, a movable plate is longitudinally slidably connected to the inner circumferential wall of the sampling barrel, a liquid storage cavity is provided between the movable plate and the water inlet plate, a drain one-way valve is fixedly connected to the movable plate, a spike is fixedly connected to the bottom wall of the sampling barrel, and the spike is coaxially arranged with the drain one-way valve.
[0008] Preferably, an electric telescopic rod is fixedly connected to the outer circumferential wall of the sampling barrel, the electric telescopic rod is electrically connected to the speed sensor, the output end of the electric telescopic rod is fixedly connected to the movable plate, and a first piston rod is fixedly connected to the outer circumferential wall of the sampling barrel, and the telescopic end of the first piston rod is fixedly connected to the movable plate.
[0009] Preferably, the sampling assembly includes a placement plate, a guide frame and a second piston rod, the side wall of the placement plate is fixedly connected to the bracket, the placement plate is close to the other end of the catheter away from the urine collecting funnel, the guide frame is connected to the placement plate, the second piston rod is connected to the guide frame, the base end of the second piston rod is connected to the base end of the first piston rod through the trachea, the guide frame includes a guide rod and a driving plate, the guide rod is symmetrically longitudinally slidably connected to the placement plate, the driving plate is fixedly connected to the top of the guide rod, and the base end of the second piston rod is fixedly connected to the side wall of the driving plate.
[0010] Preferably, a spring is sleeved on the guide rod, and both ends of the spring are fixedly connected to the top wall of the placement plate and the bottom wall of the driving plate respectively. The telescopic end of the second piston rod is fixedly connected to a baffle, and the baffle is close to the other end of the catheter.
[0011] The beneficial effects achieved by the present invention using the above structure are as follows: 1. This application uses urine to drive the rotation speed of the impeller to reflect the urine flow in real time, dynamically adjust the capacity of the front urine storage, accurately collect the front urine, and dynamically adjust the mid-stream urine entering the urine sampling cup. When sampling the front urine, backflow is prevented to avoid interference with the test results and improve the accuracy of urine analysis. The impact force of the water flow is used to discharge residual urine and clean the catheter and sampling bucket. 2. The telescopic distance of the electric telescopic rod is controlled according to the amount of urine, and the distance between the water inlet plate and the movable plate is changed. The capacity of the liquid storage chamber is automatically adjusted according to the urine flow rate. The water inlet check valve and the drain check valve work together to prevent urine backflow or contamination in the liquid storage chamber, ensuring the purity of the mid-stream urine sample. It can also be disinfected while discharging urine during cleaning. 3. The telescopic distance of the electric telescopic rod can be controlled according to the amount of urine. The first piston rod can be compressed, and the compressed air enters the second piston rod to adjust the axial distance between the baffle and the catheter. The amount of urine collected in the middle part can be adjusted according to the change of urine volume. 4. After the collection of the front urine is completed, the middle urine is collected. As the middle urine is collected, the collection volume of the middle urine can be adjusted according to the change of urine volume, driving the baffle to block the catheter, stop the urine from flowing into the urine sampling cup, avoid the tail urine from flowing out, and prevent the tail urine from contaminating the middle urine sample. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention.
[0013] Figure 1 This is a schematic diagram of the overall structure of a mid-section urine sampling device for a urine analyzer proposed by the present invention; Figure 2 This is a schematic diagram of the support connection structure of a urine mid-section sampling device for a urine analyzer proposed by the present invention; Figure 3 This is a schematic diagram of the connection structure of the urine collecting funnel of the mid-section urine sampling device for a urine analyzer proposed by the present invention; Figure 4 This is a schematic diagram of the catheter connection structure of a mid-section urine sampling device for a urine analyzer proposed by the present invention; Figure 5 This is a schematic diagram of the connection structure of a sampling barrel of a mid-section urine sampling device for a urine analyzer proposed by the present invention; Figure 6 This is a schematic diagram of the connection structure of the sampling components of the mid-section urine sampling device for a urine analyzer proposed by the present invention.
[0014] In the accompanying drawings: 1. bracket, 2. urine collecting funnel, 3. catheter, 4. sampling bucket, 5. sampling assembly, 21. rotating impeller, 22. speed sensor, 23. support plate, 24. nozzle, 401. water inlet plate, 402. moving plate, 403. spikes, 501. placement plate, 503. driving plate, 504. spring, 505, guide rod, 507, second piston rod, 508. baffle, 601. electric telescopic rod, 603, first piston rod.
[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0017] Example 1, as Figures 1-6 As shown, the present invention proposes a mid-section urine sampling device for a urine analyzer, comprising a bracket 1, a urine collecting funnel 2 being fixedly connected to the top wall of the bracket 1, a urinary catheter 3 being fixedly connected to the bottom wall of the bracket 1, one end of the urinary catheter 3 being connected to the urine collecting funnel 2, a sampling assembly 5 being fixedly connected to one side of the bottom wall of the bracket 1, the sampling assembly 5 being close to the other end of the urinary catheter 3, a sampling bucket 4 being fixedly connected to the urinary catheter 3, and the sampling bucket 4 being connected to the sampling assembly 5; The inner wall of the urine collecting funnel 2 is rotatably connected to a rotating impeller 21 , and the top wall of the bracket 1 is fixedly connected to a speed sensor 22 . One end of the rotating impeller 21 rotates through the urine collecting funnel 2 and contacts the speed sensor 22 .
[0018] like Figure 1-Figure 2 and Figure 4-Figure 5 As shown, a water inlet plate 401 is fixedly connected to the upper part of the inner circumferential wall of the sampling bucket 4, and a water inlet one-way valve is fixedly connected to the water inlet plate 401, and the flow direction of the water inlet one-way valve is from top to bottom. A movable plate 402 is longitudinally slidably connected to the inner circumferential wall of the sampling bucket 4, and a liquid storage chamber is provided between the movable plate 402 and the water inlet plate 401. A drain one-way valve is fixedly connected to the movable plate 402, and the flow direction of the drain one-way valve is from bottom to top. A spike 403 is fixedly connected to the bottom wall of the sampling bucket 4, and the spike 403 is coaxially arranged with the drain one-way valve. The diameters of the drain one-way valve and the water inlet one-way valve are smaller than the urinary catheter 3. When the movable plate 402 drives the drain one-way valve to contact the spike 403, the spike 403 opens the drain one-way valve.
[0019] like Figure 1-Figure 2 and Figure 4-Figure 5 As shown, an electric telescopic rod 601 is fixedly connected to the outer circumferential wall of the sampling barrel 4, and the electric telescopic rod 601 is electrically connected to the speed sensor 22. The output end of the electric telescopic rod 601 is fixedly connected to one side of the bottom wall of the movable plate 402. A first piston rod 603 is fixedly connected to the outer circumferential wall of the sampling barrel 4, and the initial state of the first piston rod 603 is an extended state. The telescopic end of the first piston rod 603 is fixedly connected to the other side of the bottom wall of the movable plate 402. When the electric telescopic rod 601 drives the movable plate 402 to move, the air in the first piston rod 603 is compressed.
[0020] like Figure 1-Figure 2 、 Figure 4 and Figure 6 As shown, the sampling assembly 5 includes a placement plate 501, a guide frame and a second piston rod 507. The side wall of the placement plate 501 is fixedly connected to the bottom wall of the bracket 1. The guide frame is connected to the placement plate 501. The placement plate 501 is close to the other end of the catheter 3. The second piston rod 507 is connected to the guide frame. The guide frame includes a guide rod 505 and a driving plate 503. The guide rod 505 is symmetrically and longitudinally slidably connected to the placement plate 501. The driving plate 503 is fixedly connected to the top of the guide rod 505. The base end of the second piston rod 507 is fixedly connected to the side wall of the driving plate 503. The initial state of the second piston rod 507 is a contracted state. In the state, when the air in the first piston rod 603 is compressed, the compressed air enters the second piston rod 507, and a spring 504 is sleeved on the guide rod 505. The two ends of the spring 504 are respectively fixedly connected to the top wall of the placement plate 501 and the bottom wall of the driving plate 503. The telescopic end of the second piston rod 507 is fixedly connected to a baffle 508, and the baffle 508 is close to the other end of the catheter 3. In the initial state of the second piston rod 507, the baffle 508 is coaxially arranged with the catheter 3, and the diameter of the baffle 508 is larger than the diameter of the catheter 3. When the compressed air enters the second piston rod 507, the second piston rod 507 drives the baffle 508 away from the catheter 3.
[0021] like Figure 1-Figure 3 As shown, a support plate 23 is fixedly connected to one side of the top wall of the bracket 1 , and a nozzle 24 is fixedly connected to the support plate 23 , and the nozzle 24 faces the rotating impeller 21 .
[0022] The bracket 1 is placed in the bathroom, and the nozzle 24 is connected to the external water pump. The urine sampling cup is placed on the driving plate 503. When urinating, the urine is aligned with the rotation direction of the rotating impeller 21, and the urine flows into the urine receiving funnel 2. The urine passes through the urine receiving funnel 2 and impacts the rotating impeller 21. The speed sensor 22 only detects the speed of the rotating impeller 21 for the first few seconds. When the rotating impeller 21 rotates at a fast speed, the patient's initial urine volume is large and the patient's urine volume is large. When the rotating impeller 21 rotates at a slow speed, the patient's initial urine volume is small and the patient's urine volume is small. The amount of urine is determined based on the flow rate of the patient's initial urine volume. The speed sensor 22 controls the telescopic distance of the electric telescopic rod 601 based on the amount of urine. The electric telescopic rod 601 is started, and the electric telescopic rod 601 drives the movable plate 402 away from the water inlet plate 401, and adjusts the capacity of the liquid storage chamber according to the amount of urine of the patient. Then the electric telescopic rod 601 stops, and the urine passes through the urine collecting funnel 2 through the rotating impeller 21 and enters the urinary catheter 3, and then enters the sampling bucket 4. The urine passes through the water inlet one-way valve on the water inlet plate 401 and enters the liquid storage chamber to collect the front urine. When the front urine in the liquid storage chamber is full, the water inlet one-way valve is closed, and the front urine in the liquid storage chamber cannot flow back. The electric telescopic rod 601 also compresses the first piston rod 603, and the air in the first piston rod 603 is compressed into the second piston rod 507, and the second piston rod 507 drives the baffle 508 to move. The more urine the amount, the longer the distance the second piston rod 507 drives the baffle 508 to move, according to the patient's urine. The distance between the axis of the baffle 508 and the axis of the urinary catheter 3 is adjusted. After the front urine is collected, the middle urine flows into the urine sampling cup through the urinary catheter 3. The urine in the urine sampling cup gradually increases, pushing the driving plate 503 to move, driving the guide rod 505 to move on the placement plate 501, and at the same time compressing the spring 504, driving the plate 503 to push the second piston rod 507 and the baffle 508 to move. When the baffle 508 is coaxially arranged with the urinary catheter 3, since the diameter of the baffle 508 is larger than the diameter of the urinary catheter 3, the baffle 508 blocks the urinary catheter 3, and the urine in the urinary catheter 3 stops flowing into the urine sampling cup. When the distance between the axis of the baffle 508 and the axis of the urinary catheter 3 is longer, more urine is required to flow into the urine sampling cup to drive the baffle 508 to block the urinary catheter 3, so that the collection amount of the middle urine can be adjusted according to the change of urine volume. The urine sampling cup is removed, and at the same time, the external water pump draws disinfectant water into the nozzle 24, and the disinfectant water flows through the nozzle 24 to the rotating impeller 21. The flow rate generated by the water pump far exceeds the flow rate of urine. The speed sensor 22 controls the electric telescopic rod 601 to extend to the limit, and the electric telescopic rod 601 drives the movable plate 402 to approach the spike 403. The spike 403 opens the drainage one-way valve on the movable plate 402 to discharge the urine in the liquid storage chamber. The high-flow water also enters the urinary catheter 3, enters the liquid storage chamber through the water inlet one-way valve on the water inlet plate 401, and is discharged through the drainage one-way valve to clean the sampling bucket 4. Since the diameter of the drainage one-way valve and the water inlet one-way valve is smaller than that of the urinary catheter 3, the disinfectant water also pushes the urine at the tail end of the urinary catheter 3 to be discharged, cleaning the urinary catheter 3, and the disinfectant water stops entering the nozzle 24. The electric telescopic rod 601 is reset and ready for the next sampling.
[0023] The above description of the present invention and its embodiments is non-limiting. The accompanying drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design of a structure and embodiment similar to the technical solution, they shall fall within the scope of protection of the present invention.
Claims
1. A urine mid-section sampling device for a urine analyzer, comprising a bracket (1), a urine collecting funnel (2) fixedly connected to the top wall of the bracket (1), a urinary catheter (3) fixedly connected to the bottom wall of the bracket (1), one end of the urinary catheter (3) being in communication with the urine collecting funnel (2), and characterized in that: A sampling assembly (5) is fixedly connected to one side of the bottom wall of the bracket (1), and the sampling assembly (5) is close to the other end of the urinary catheter (3). A sampling barrel (4) is fixedly connected to the urinary catheter (3), and the sampling barrel (4) is connected to the sampling assembly (5).
2. A urine midstream sampling device for a urine analyzer according to claim 1, characterized in that: The inner wall of the urine collecting funnel (2) is rotatably connected to a rotating impeller (21), the top wall of the bracket (1) is fixedly connected to a rotation speed sensor (22), and one end of the rotating impeller (21) is arranged in contact with the rotation speed sensor (22).
3. A mid-section urine sampling device for a urine analyzer according to claim 2, characterized in that: A water inlet plate (401) is fixedly connected to the upper portion of the inner circumferential wall of the sampling barrel (4), a movable plate (402) is longitudinally slidably connected to the inner circumferential wall of the sampling barrel (4), and a liquid storage cavity is provided between the movable plate (402) and the water inlet plate (401).
4. A mid-stream urine sampling device for a urine analyzer according to claim 3, characterized in that: An electric telescopic rod (601) is fixedly connected to the outer circumferential wall of the sampling barrel (4), the electric telescopic rod (601) is electrically connected to the rotation speed sensor (22), and the output end of the electric telescopic rod (601) is fixedly connected to the movable plate (402).
5. The mid-stream urine sampling device for a urine analyzer according to claim 4, characterized in that: A first piston rod (603) is fixedly connected to the outer circumferential wall of the sampling barrel (4), and a telescopic end of the first piston rod (603) is fixedly connected to the movable plate (402).
6. A mid-stream urine sampling device for a urine analyzer according to claim 5, characterized in that: The sampling assembly (5) includes a placement plate (501), a guide frame, and a second piston rod (507), wherein the side wall of the placement plate (501) is fixedly connected to the bracket (1), the guide frame is connected to the placement plate (501), the second piston rod (507) is connected to the guide frame, and the base end of the second piston rod (507) is connected to the base end of the first piston rod (603) through an air pipe.
7. A mid-stream urine sampling device for a urine analyzer according to claim 6, characterized in that: The telescopic end of the second piston rod (507) is fixedly connected to a baffle (508), and the baffle (508) is close to the end of the urinary catheter (3) away from the urine collecting funnel (2).