A quantitative sampling and mixing device for urine

Abstract

The utility model relates to a kind of quantitative sampling and mixing device of urine, the device is used to drive airflow and form positive pressure or negative pressure, for mixing or quantitative suction liquid, including body, liquid storage tube, liquid suction tube, inlet and outlet air port, mixing device, sampling key, mixing key, air duct, flow sensor and fan unit, the liquid storage tube, inlet and outlet air port, sampling key, mixing key and air duct are all installed on body, the flow sensor and fan unit are installed in air duct, the inlet and outlet air port and liquid storage tube are all communicated with air duct, the liquid storage tube and liquid suction tube are communicated, the sampling key and mixing key are respectively connected with fan unit communication connection.The utility model is by being provided with sampling key and mixing key, for controlling fan unit forward rotation or reverse rotation, to form positive pressure or negative pressure, quantitative sampling when positive pressure, negative pressure when urine is uniformly mixed, air flow is monitored in real time by flow sensor, to realize quantitative sampling.

Description

Technical Field

[0001] This utility model relates to the field of quantitative sampling and mixing technology, and in particular to a device for quantitative sampling and mixing of urine. Background Technology

[0002] Urine testing is a commonly used method in medical diagnosis, widely applied in the diagnosis and monitoring of various diseases such as kidney disease, urinary system disease, and diabetes. In the urine testing process, sample collection, mixing, and quantitative sampling are crucial steps that directly affect the accuracy and reliability of the test results.

[0003] Currently, urine samples are typically collected and processed using the following methods:

[0004] 1. Traditional manual collection and processing: Healthcare workers collect urine samples using ordinary urine cups, then manually transfer the samples to test tubes or other containers for mixing and quantitative sampling. This method is cumbersome and prone to sample contamination and human error.

[0005] 2. Semi-automatic urine analyzer: Some medical institutions use semi-automatic urine analyzers, which assist in some operations but still require manual intervention, such as manually mixing or transferring samples. This type of equipment may have insufficient accuracy in mixing and quantitative sampling, and its cost is relatively high.

[0006] 3. Disposable urine collection cups: There are also some disposable urine collection cups on the market, but these products usually only solve the problem of sample collection and lack effective mixing and quantitative sampling functions, still requiring additional tools and operating procedures.

[0007] Chinese patent application CN112057115A discloses a urine quantitative sampling device, which includes a cup body and a cover body. The cup body has a collection port and a sampling port. The cover body includes a sealing outer cover for sealing the collection port and a sampling cap for sealing the sampling port. A separator is provided inside the cup body, and the sealing outer cover is sealed to the separator to divide the liquid-containing cavity of the cup body into a closed collection cavity and a closed quantitative sampling cavity. An exhaust device is provided on the sealing outer cover to release the internal air pressure of the cup body when sealing it. This patent achieves quantitative sampling by pre-setting a sealed cavity of a certain size. However, the quantitative sampling size of this patent cannot be arbitrarily changed, the quantitative sampling process is inaccurate, and it cannot uniformly mix the urine.

[0008] Therefore, improving a quantitative sampling device that can accurately sample and uniformly mix urine is an urgent problem to be solved. Utility Model Content

[0009] The purpose of this invention is to overcome the defects of the prior art and provide a device for quantitative sampling and mixing of urine.

[0010] The objective of this utility model can be achieved through the following technical solutions:

[0011] According to one aspect of the present invention, a quantitative sampling and mixing device for urine is provided. The device is used to drive airflow and form positive or negative pressure for mixing or quantitatively aspirating liquid. It includes a main body, a liquid storage tube, a suction tube, an air inlet and outlet, a mixer, a sampling key, a mixing key, an air duct, a flow sensor, and a fan unit. The liquid storage tube, air inlet and outlet, sampling key, mixing key, and air duct are all mounted on the main body. The flow sensor and fan unit are mounted in the air duct. The air inlet and outlet and the liquid storage tube are both connected to the air duct. The liquid storage tube and the suction tube are connected. The sampling key and the mixing key are respectively communicatively connected to the fan unit.

[0012] As a preferred technical solution, the suction tube is movably installed on the top of the body and extends into the storage tube.

[0013] As a preferred technical solution, the length of the suction tube in the liquid storage tube is greater than the length of the air duct in the liquid storage tube.

[0014] As a preferred technical solution, the device further includes a scale, which is installed in the liquid storage tube.

[0015] As a preferred technical solution, the liquid storage tube and the main body are movably connected.

[0016] As a preferred technical solution, the liquid storage tube and the body are threaded together.

[0017] As a preferred technical solution, the device further includes a sealing ring, which is installed at the connection between the main body and the liquid storage tube, and at the connection between the main body and the liquid suction tube.

[0018] As a preferred technical solution, the device further includes a control unit, which is communicatively connected to the mixing key, the sampling key, the flow sensor, and the fan unit.

[0019] As a preferred technical solution, the device further includes a display screen and buttons, both of which are mounted on the main body and are communicatively connected to the control unit.

[0020] As a preferred technical solution, the liquid suction tube is installed at the bottom of the mixer.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This utility model uses sampling and mixing keys to control the forward or reverse rotation of the fan unit, thereby creating positive or negative pressure. When under positive pressure, quantitative sampling is performed, and when under negative pressure, urine is mixed evenly. The air flow rate is monitored in real time by a flow sensor, thus achieving quantitative sampling.

[0023] 2. The liquid storage tube and the main body of this utility model are connected in a movable manner, specifically by a threaded connection, which facilitates the replacement of the liquid storage tube and avoids cross-contamination from urine.

[0024] 3. This utility model also includes a sealing ring, which can increase the airtightness of the connection between the liquid storage tube and the main body, and prevent gas leakage that could affect sampling.

[0025] 4. This utility model also includes a display screen and buttons for adjusting the size of the sampled value and displaying the current value in real time on the display screen. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0028] Figure 3 This is an installation diagram of the present invention;

[0029] 1. Main body; 2. Liquid storage tube; 3. Liquid suction tube; 4. Air inlet and outlet; 5. Mixer; 6. Sampling button; 7. Mixing button; 8. Air duct; 9. Fan unit; 10. Sealing ring; 11. Display screen; 12. Buttons. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0031] To address the inconveniences in sample collection, mixing, and quantitative sampling in existing technologies, this invention provides a quantitative sampling and mixing device for urine. This invention uses sampling and mixing buttons to control the forward or reverse rotation of a fan unit, thereby creating positive or negative pressure. Positive pressure enables quantitative sampling, while negative pressure enables uniform mixing of urine. A flow sensor monitors airflow in real time, thus achieving quantitative sampling. The device features a movable connection between the storage tube and the main body, specifically a threaded connection, for easy replacement of the storage tube and to prevent cross-contamination during urine transport. A sealing ring is also included to increase the airtightness of the connection between the storage tube and the main body, preventing gas leakage that could affect sampling. Furthermore, a display screen and buttons are provided for adjusting the sampling value, with the current value displayed in real time.

[0032] Example 1

[0033] like Figures 1-3 As shown, a quantitative sampling and mixing device for urine is disclosed. The device is used to drive airflow and form positive or negative pressure for mixing or quantitatively aspirating liquid. It includes a main body 1, a liquid storage tube 2, a suction tube 3, an air inlet / outlet 4, a mixer 5, a sampling button 6, a mixing button 7, an air duct 8, a flow sensor, and a fan unit 9. The liquid storage tube 2, air inlet / outlet 4, sampling button 6, mixing button 7, and air duct 8 are all mounted on the main body. The flow sensor and fan unit 9 are mounted in the air duct 8. The air inlet / outlet 4 and liquid storage tube 2 are both connected to the air duct 8. The liquid storage tube 2 is connected to the suction tube 3. The sampling button 6 and mixing button 7 are respectively communicatively connected to the fan unit 9.

[0034] In this embodiment, the technical principle of this invention is to achieve quantitative sampling or mixing by inhaling or venting air. The airflow inside the device is either expelled or drawn in, creating a pressure difference that causes urine to flow within the container. During quantitative sampling, the continuous expulsion of air creates a pressure difference, causing urine to automatically enter the storage tube. By controlling the volume of expelled air, the liquid volume can be controlled. During mixing, the airflow generates bubbles and eddies in the urine. The rising bubbles and rotating eddies effectively agitate the urine, ensuring a uniform distribution of its components. Repeatedly pressing the mixing button during exhalation and inhalation further enhances the mixing effect by repeatedly expelling and inhaling air into and out of the container. This air-venting mixing method is similar to the principle of common pneumatic stirring, but it is achieved through a simple mechanical structure without the need for an additional power source.

[0035] The airflow direction during the mixing process is sequentially: air inlet / outlet 4, fan unit 9, liquid storage pipe 2, liquid suction pipe 3, and mixer 5; the airflow direction during the suction process is sequentially: mixer 5, liquid suction pipe 3, liquid storage pipe 2, flow sensor, fan unit 9, and air inlet / outlet 4.

[0036] The operation of this device is simple and efficient. The specific steps are as follows:

[0037] 1. Insert the reservoir tube: Insert the reservoir tube into the disposable container, ensuring that it is connected to the inside of the container.

[0038] 2. Insert the suction tube: Connect the suction tube to the reservoir tube to ensure that it can properly aspirate urine.

[0039] 3. Mixing operation: Press the mixing button to mix the urine by changing the airflow through the air inlet and outlet.

[0040] 4. Quantitative sampling: Press the liquid sampling button to draw a specific volume (e.g., xml) of urine according to the internally set quantitative mechanism.

[0041] 5. Replacement of parts: After use, replace the disposable container, storage tube and suction tube to avoid cross-contamination.

[0042] Disposable containers and storage tubes: Disposable containers are used to collect urine samples, and storage tubes are inserted into the containers to store the mixed urine. The two work together to ensure the integrity of the sample during collection and processing.

[0043] Storage tube and aspiration tube: The storage tube is connected to the aspiration tube, which draws urine through the storage tube to ensure that the sample can be accurately drawn after mixing.

[0044] Mixing bonds and airflow channels: The mixing bonds control the airflow at the inlet and outlet to achieve mixing of urine. The bubbles and eddies generated by the exhaust and intake of airflow effectively agitate the urine, ensuring a uniform distribution of its components.

[0045] Dispensing button and metering mechanism: The dispensing button uses an internal metering mechanism to dispense a fixed amount of urine. Each time the dispensing button is pressed, the piston or pump moves at a consistent stroke and speed to ensure that the volume of urine dispensed is the same each time.

[0046] Disposable and replaceable parts: Both the reservoir tube and the aspirator tube are for single use only and should be replaced after each use to avoid cross-contamination of samples and ensure the independence and reliability of each test.

[0047] The suction tube 3 is movably mounted on the top of the main body 1 and extends into the storage tube 2. The length of the suction tube 3 in the storage tube 2 is greater than the length of the air duct 8 in the storage tube 2. The device also includes a scale, which is installed in the storage tube 2.

[0048] In this embodiment, the suction tube 3 is movably mounted on the main body 1. The connection is divided into two parts that can be secured to each other using a snap-fit ​​mechanism, allowing for opening and closing and thus enabling the replacement of the suction tube 3. The length of the suction tube 3 within the liquid storage tube 2 should be greater than the length of the air duct 8 within the liquid storage tube 2 to prevent liquid from being drawn into the air duct 8 during sampling due to the suction tube 2 being too short. A graduated scale is provided to visually indicate the current liquid volume.

[0049] The liquid storage tube 2 and the main body 1 are movably connected. The liquid storage tube 2 and the main body 1 are threadedly connected. The device also includes a sealing ring 10, which is installed at the connection between the main body 1 and the liquid storage tube 2, and at the connection between the main body 1 and the suction tube 3.

[0050] In this embodiment, a threaded connection is provided for easy replacement; at the same time, a sealing ring is provided at the connection to enhance airtightness and prevent gas leakage, which could lead to inaccurate sampling.

[0051] The device also includes a control unit, which is communicatively connected to the mixing key 7, the sampling key 6, the flow sensor, and the fan unit 9.

[0052] The device also includes a display screen 11 and buttons 12, both of which are mounted on the main body 1 and are communicatively connected to the control unit.

[0053] In this embodiment, button 12 can dynamically adjust the current sampling value and display it on the display screen.

[0054] The suction tube 3 is installed at the bottom of the mixer 5.

[0055] In this embodiment, the suction tube 3 is installed at the bottom of the mixer 5 to facilitate airflow through the liquid from bottom to top for thorough mixing.

[0056] Example 2

[0057] This invention uses a fan to drive the airflow, which can be replaced by a miniature piston or a metering pump. When the liquid dispensing button is pressed, the piston or pump body is driven to draw a fixed volume of urine from the storage tube.

[0058] The quantitative sampling value is determined by its internal structural parameters (such as piston stroke, pump chamber volume, etc.). By precisely designing these parameters, it is possible to extract a specific volume (such as xml) of urine.

[0059] Each time the dispensing button is pressed, the piston or pump moves at a consistent speed and stroke, ensuring that the volume of urine drawn each time is the same, thus guaranteeing the repeatability and accuracy of quantitative dispensing.

[0060] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A device for quantitative sampling and mixing of urine, the device being used to drive airflow and create positive or negative pressure for mixing or quantitatively aspirating liquid, characterized in that, The device includes a main body (1), a liquid storage tube (2), a suction tube (3), an air inlet / outlet (4), a mixer (5), a sampling key (6), a mixing key (7), an air duct (8), a flow sensor, and a fan unit (9). The liquid storage tube (2), the air inlet / outlet (4), the sampling key (6), the mixing key (7), and the air duct (8) are all installed on the main body. The flow sensor and the fan unit (9) are installed in the air duct (8). The air inlet / outlet (4) and the liquid storage tube (2) are both connected to the air duct (8). The liquid storage tube (2) is connected to the suction tube (3). The sampling key (6) and the mixing key (7) are respectively connected to the fan unit (9).

2. The urine quantitative sampling and mixing device according to claim 1, characterized in that, The suction tube (3) is movably installed on the top of the body (1) and extends into the storage tube (2).

3. The urine quantitative sampling and mixing device according to claim 2, characterized in that, The length of the suction tube (3) in the storage tube (2) is greater than the length of the air duct (8) in the storage tube (2).

4. The urine quantitative sampling and mixing device according to claim 1, characterized in that, The device also includes a scale installed in the liquid storage tube (2).

5. The urine quantitative sampling and mixing device according to claim 1, characterized in that, The liquid storage tube (2) and the main body (1) are movably connected.

6. The urine quantitative sampling and mixing device according to claim 5, characterized in that, The liquid storage tube (2) and the body (1) are threaded together.

7. The urine quantitative sampling and mixing device according to claim 1, characterized in that, The device also includes a sealing ring (10), which is installed at the connection between the body (1) and the liquid storage tube (2) and at the connection between the body (1) and the liquid suction tube (3).

8. The urine quantitative sampling and mixing device according to claim 1, characterized in that, The device also includes a control unit, which is communicatively connected to the mixing key (7), the sampling key (6), the flow sensor, and the fan unit (9).

9. A quantitative sampling and mixing device for urine according to claim 8, characterized in that, The device also includes a display screen (11) and buttons (12), both of which are mounted on the main body (1). The display screen (11) and buttons (12) are respectively connected to the control unit.

10. A quantitative sampling and mixing device for urine according to claim 1, characterized in that, The suction tube (3) is installed at the bottom of the mixer (5).

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