Sample diversion structure for urine routine test based on kidney damage

Abstract

The utility model relates to urine routine detection technical field, and disclose a sample diversion structure for urine routine detection based on kidney damage, including the diversion ring of installation at the opening at the bottom of dropper, its characterized in that: diversion ring is vertical hollow body, and inside installation is used for traction from the surface tension of urine that drops out of dropper opening diversion structure, the utility model discloses through diversion structure makes urine directly whole from the sliding of diversion ring opening, the test paper detection area under whole diversion ring will be contacted by the urine that slowly slides down at this moment, and then the surface tension of test paper detection area will also influence the urine in diversion ring in reverse, finally urine drops on the surface of test paper detection area, completes stable even and large -area's coverage, reaches the beneficial effect of the urine stable even of the dropper in the improvement urine routine detection makes it drop in test paper detection area.

Description

Technical Field

[0001] This utility model relates to the field of routine urine testing technology, specifically a sample diversion structure for routine urine testing based on kidney injury. Background Technology

[0002] Kidney injury refers to a condition where the kidneys are subjected to various internal and external factors, leading to abnormalities in their structure and function. When kidney injury occurs, the structure and function of the kidneys change rapidly, resulting in alterations in the composition of urine. Routine urinalysis provides clues for the diagnosis of kidney injury by qualitatively and semi-quantitatively analyzing various components in urine, such as cells, casts, proteins, and electrolytes.

[0003] The technology for detecting kidney injury is very mature. For example, the prior art CN209059682U specification, paragraph 0048, discloses that "the urine detection device is located on the outside of the diaper on the front of the person, and the upper area of ​​the absorbent layer of the detection area has a horizontally fixed acute kidney injury detection area to facilitate the absorbent pad to absorb the urine that has penetrated into the sample pad and to uniformly pass through the conjugate release pad and reaction membrane..." or CN207894937U specification, paragraph 0016, discloses that "open the box cover 7, then take out the sampling device 10 and the test card 1, then insert the test card 1 into the detection cavity 8, and then operate..." Block 12 moves the movable plate 11 to the left, exposing the positioning hole 9. The sampling device here can directly sample the patient's urine. Specifically, when sampling, first press the top cover 104 and loosen it to separate it from the sampling cylinder 101. Then, insert the bottom of the sampling head 106 into the urine. Then, slowly release the top cover 104. Under the action of the spring 103, the piston 105 will move upward and suck the urine into the sampling cylinder 101, thereby greatly improving the sampling effect. Finally, insert the sampling head 106 into the positioning hole 9 and press the top cover 104 down to make the urine in the sampling device 10 drip into the detection area on the test card 1...

[0004] The aforementioned existing technologies require the use of test strips for routine urine testing to detect kidney damage. Both require a dropper to collect urine and then drip it onto the test area of ​​the test strip. However, there is a problem with uneven dripping. This is because the dropper in the existing technology uses negative pressure and air pressure to collect and squeeze out urine. If too much force is used, too much urine will be squeezed out and will not leave the test area of ​​the test strip, which will contaminate the equipment. If too little urine is squeezed out, it will not be able to cover the test area of ​​the test strip, making it difficult to obtain results. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a sample guide structure for routine urine testing based on kidney injury, which has advantages such as improving the dropper in routine urine testing to ensure stable and uniform urine droplets in the test strip detection area, thus solving the aforementioned technical problems.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a sample guide structure for routine urine testing based on kidney injury, including a guide ring installed at the bottom opening of the dropper. The guide ring is a vertical hollow body, and a guide structure for pulling the surface tension of urine dripping from the dropper opening is installed on the inner side. The flow guiding structure includes: The flow guide bristles are laid out from top to bottom and located below the bottom opening of the dropper. They are also placed on the top or bottom of the inner side of the flow guide ring, and the surface of the flow guide bristles also contacts the inner wall of the flow guide ring.

[0007] As a preferred technical solution of this utility model, a retaining ring is also installed on the top of the guide brush bristles. The retaining ring is a hollow ring body, and the two are fixedly connected. The retaining ring and the multiple guide brush bristles installed around the bottom surface combine to form a hollow cone shape that is smaller at the top and larger at the bottom.

[0008] As a preferred technical solution of this utility model, the guide brush bristles are hard bristles, and the diameter of a single guide brush bristle is 0.01 mm.

[0009] As a preferred technical solution of this utility model, multiple guide bristles extend downward at the bottom and move towards the inner wall of the retaining ring, forming an inclined posture.

[0010] As a preferred technical solution of this utility model, the outer surface of the retaining ring is also laterally connected with positioning rods. The minimum number of positioning rods is two. The two positioning rods are respectively installed at both ends of the outer surface of the retaining ring. One side of the positioning rod is fixedly connected to the retaining ring, and the other side is fixedly connected to the inner wall of the guide ring.

[0011] As a preferred technical solution of this utility model, the flow guiding structure also includes a through hole opened at the bottom of the side wall of the retaining ring. The through hole is opened around the side wall of the retaining ring and extends through its inner and outer sides. The through hole is located below the flow guiding bristles.

[0012] As a preferred technical solution of this utility model, the flow guiding structure also includes a groove. The groove is opened around the inner wall of the flow guiding ring. The longitudinal section of the groove on the inner wall of the flow guiding ring is arc-shaped. The arc-shaped groove has a small curvature at the top and bottom ends and a large curvature in the middle end. The flow guiding bristles are installed around the lower end of the groove. The flow guiding bristles are attached to the inner wall of the groove and extend downward to the outer side of the opening below the flow guiding ring. The part of the flow guiding bristles in the flow guiding ring is also attached to the inner wall of the flow guiding ring.

[0013] Compared with the prior art, this utility model provides a sample diversion structure for routine urine testing based on kidney injury, which has the following beneficial effects: This invention utilizes the principle that pressing the dropper compresses the urine inside, causing it to surge towards the bottom opening. The urine flowing from the dropper's opening directly contacts the guide bristles. The capillary action on the slender guide bristles, combined with the flow along the wetting front, pulls the urine along the solid surface. Some urine moves faster along the guide bristles, while another drips downwards along the hollow retaining ring. With multiple guide bristles angled, the initial portion of urine, guided by tension, flows radially downwards towards the guide ring, covering a larger area. This portion then contacts the through-hole, spreading out near the contact point. Because of the surface area of ​​the urine... Under the influence of surface tension, urine tends to maintain a spherical shape. However, under the combined influence of the surface tension of the guide ring and gravity, the urine gradually deforms into a flat shape, with its edge extending towards the surrounding holes, thus creating a second deceleration. At this point, the urine dripping down along the hollow retaining ring comes into contact with this part of the urine. The combined gravity overcomes the tension limit, and the urine slides directly from the opening of the guide ring. At this time, the entire test strip detection area below the guide ring is contacted by the slowly sliding urine. Then, the surface tension of the test strip detection area also affects the urine inside the guide ring. Finally, the urine drips onto the surface of the test strip detection area, achieving stable, uniform, and large-area coverage. This achieves the beneficial effect of improving the dropper in routine urinalysis by making the urine drip onto the test strip detection area more stable and uniform. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model; Figure 2 This is a front sectional view of the overall structure of Embodiment 1 of this utility model; Figure 3 This is a front sectional view of the flow guide ring structure according to Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model; Figure 5 This is a front sectional view of the overall structure of Embodiment 2 of this utility model; Figure 6 This is a front cross-sectional view of the flow guide ring structure in Embodiment 2 of this utility model.

[0015] Among them: 1. Dropper; 2. Guide ring; 3. Guide brush bristles; 301. Snap ring; 302. Positioning rod; 303. Through hole; 4. Groove. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 do not 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see Figure 1-6 A sample guide structure for routine urine testing based on kidney injury includes a guide ring 2 installed at the bottom opening of a dropper 1. The guide ring 2 is a vertical hollow body, and a guide structure for pulling the surface tension of urine dripping from the opening of the dropper 1 is installed on its inner side. The flow guiding structure includes: The flow guide bristles 3 are laid out from top to bottom and are located below the bottom opening of the dropper 1. They are also set on the top or bottom of the inner side of the flow guide ring 2. The surface of the flow guide bristles 3 also contacts the inner wall of the flow guide ring 2.

[0020] Furthermore, the outer edge of the top of the guide ring 2 is fixedly connected to the outer edge of the opening of the dropper 1, forming an integrated unit.

[0021] The hollow conical bristles 3, which are larger at the top and smaller at the bottom, cause the urine squeezed out from the outlet of the dropper 1 to come into contact with the bristles 3. At this time, the capillary action of the urine on the surface of the slender bristles 3 and the flow along the wetting front are superimposed, causing the urine to be pulled along the solid surface. At this time, part of the urine will move more quickly along the bristles 3, while the other part will drip down along the hollow retaining ring 301.

[0022] Furthermore, the guide bristles 3 are hard bristles, and the diameter of a single guide bristle 3 is 0.01 mm.

[0023] The guide bristles 3, with a diameter of 0.01 mm, can be placed inside the guide ring 2. Currently, the diameter of the dropper 1 sold on the market is 2-5 mm. Since the guide ring 2 of this application is directly connected to the opening of the dropper 1 and the inner diameter of the two is the same, the inner diameter of the guide ring 2 is also 2-5 mm. The use of 0.01 mm guide bristles can ensure that there is enough space to accommodate them inside the guide ring 2.

[0024] By setting multiple guide bristles 3 at an angle, the urine that is first guided by tension will flow along the guide bristles 3 to the bottom of the guide ring 2, and will flow in a radial pattern, covering a larger area and wider range.

[0025] The retaining ring 301 is fixedly connected by the positioning rod 302, and then the positioning rod 302 is fixed to the inner side of the guide ring 2 to form a stable support for the guide brush bristles 3.

[0026] Furthermore, the flow guiding structure also includes a through hole 303 opened at the bottom of the side wall of the retaining ring 301. The through hole 303 is opened around the side wall of the retaining ring 301 and extends through its inner and outer sides. The through hole 303 is located below the flow guiding bristles 3.

[0027] The bristles 3, the guide ring 2, the retaining ring 301, and the positioning rod are all made of medical-grade plastic, specifically polyetheretherketone (PEEK). Utilizing PEEK's high chemical stability, strong corrosion resistance, and insolubility in common solvents, it will not chemically react with urea, uric acid, inorganic salts, proteins, and glucose in urine at room temperature and pressure. Therefore, it will not cause changes in the test results when used in routine urine tests. Please note that the use of PEEK in this application is solely based on its stable properties, and the use of PEEK is limited to a visible structure. The technical solution is achieved through structural means, without any material modifications. Furthermore, the fixed connections or installations in this application are all achieved using adhesive, specifically epoxy resin adhesive.

[0028] Example 1 In this embodiment, the dropper 1 is a commercially available disposable medical pipette with a capacity of 10ml. Since this dropper is readily available and its cost per unit is approximately 0.1 yuan, it will not be described in detail here. See the attached instruction manual. Figure 1As shown, by pinching the air bladder at the top of dropper 1 to expel air, the bottom opening of dropper 1 is inserted into the urine. At this time, the entire guide ring 2 of this embodiment is inserted into the urine, including the through hole 303. Then, the air bladder of dropper 1 is released, and a negative pressure is generated inside dropper 1 to draw urine into dropper 1. Then, the bottom of the dropper is removed from the urine and aligned with the detection area of ​​the test strip. The test strip is a very common routine urine test strip for kidney injury, which is mentioned in the background documents of this application. As already disclosed, this application will not elaborate further. When the dropper 1 is pressed, the urine inside is squeezed and begins to flow towards the opening at the bottom. Due to the narrow opening of the dropper 1, the urine forms a narrow tube effect, further increasing its speed. The ejected urine then splashes around after impacting the detection area of ​​the test strip, a common mistake caused by the user's inability to control the force. In this embodiment, once the urine flows out from the opening of the dropper 1, it directly contacts the guide bristles 3. At this time, the urine undergoes... The capillary action and the flow along the wetting front combine to pull the urine along the solid surface. At this point, some of the urine moves faster along the guide bristles 3, while another part drips downwards along the hollow retaining ring 301. When multiple guide bristles 3 are set at an angle, the urine initially guided by tension flows downwards along the guide bristles 3 towards the guide ring 2 in a radial, scattering pattern, covering a larger area. Then, this portion of urine contacts the through-hole 303. Since polyetheretherketone is insoluble in water... When the urine comes into contact with the through-hole 303, it will begin to spread out. Due to the surface tension of the urine, it tends to maintain a spherical shape. However, under the combined influence of the surface tension of the guide ring 2 and gravity, the urine will gradually deform into a flat shape, with its edge extending towards the surrounding holes, thus forming a second deceleration. At this time, the urine dripping down along the hollow retaining ring 301 will come into contact with this part of the urine. The combined force of gravity will overcome the tension limit, and the urine will slide directly from the opening of the guide ring 2, as shown in the instruction manual. Figure 2 As shown, at this time, the entire test strip detection area below the guide ring 2 will be contacted by the slowly sliding urine. Then, the surface tension of the test strip detection area will also affect the urine in the guide ring 2. Finally, the urine drips onto the surface of the test strip detection area. By first accelerating part of the urine and then decelerating the accelerated urine, the impactful urine is broken down, slowed down, and spread out, achieving stable, uniform, and large-area coverage.

[0029] In use, pressing the dropper 1 compresses the urine inside, causing it to surge towards the opening at the bottom. The urine flowing from the opening directly contacts the guide bristles 3. The capillary action on the surface of the slender guide bristles 3, combined with the flow along the wetting front, pulls the urine along the solid surface. Some of the urine moves faster along the guide bristles 3, while the rest drips downwards along the hollow retaining ring 301. When multiple guide bristles 3 are set at an angle, the portion of urine initially guided by tension flows downwards along the guide bristles 3 towards the guide ring 2. Furthermore, the urine flows radially in a dispersed manner, covering a larger area and wider range. This portion of urine then contacts the through-hole 303, where it begins to spread. Due to surface tension, it tends to maintain a spherical shape. However, under the combined influence of surface tension and gravity in the guide ring 2, the urine gradually deforms, forming a flattened shape. Its edges extend towards the surrounding holes, creating a second deceleration effect. At this point, subsequent urine dripping down along the hollow retaining ring 301 contacts this portion of urine. The combined force of gravity overcomes the tension limitation, causing the urine to slide directly from the opening of the guide ring 2, as per the instruction manual. Figure 2 As shown, at this time, the entire test strip detection area below the guide ring 2 will be contacted by the slowly sliding urine. Then, the surface tension of the test strip detection area will also affect the urine in the guide ring 2. Finally, the urine drips onto the surface of the test strip detection area, completing a stable, uniform and large-area coverage.

[0030] Example 2 In this embodiment, a groove 4 is directly formed in the middle part of the inner side of the guide ring 2, as shown in the attached specification. Figure 6 As shown, the groove 4 is shaped like a spindle with a diameter that is smaller at both ends and larger in the middle. At this time, the inner diameter of the guide ring 2 is larger than the inner diameter of the opening of the dropper 1. Furthermore, the operation of drawing and squeezing urine in this embodiment is the same as in embodiment one, so the process will not be described again. When the dropper 1 is pressed, the urine inside the dropper 1 is squeezed and begins to flow towards the opening at the bottom. The urine flowing out of the opening of the dropper 1 will move quickly down along the channel at the upper end of the guide ring 2 and contact the groove 4. At this time, according to Bernoulli's principle, the same amount of urine is dispersed to a larger cross-section, and the flow rate slows down. Then, the slowed-down urine contacts the multiple guide bristles 3 inside the groove 4. The capillary action of the urine on the surface of the multiple slender guide bristles 3 is superimposed with the flow along the wetting front, so that the urine is divided into multiple streams along the solid surface and is pulled along. Then, the multiple streams of urine evenly distributed by the multiple guide bristles 3 flow evenly and slowly to the detection area of ​​the test strip.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sample guide structure for routine urine testing based on kidney injury, comprising a guide ring (2) installed at the bottom opening of a dropper (1), characterized in that: The guide ring (2) is a vertical hollow body, and a guide structure is installed on the inner side to pull the surface tension of the urine dripping from the opening of the dropper (1); The flow guiding structure includes: The flow guide bristles (3) are laid out from top to bottom and located below the bottom opening of the dropper (1), and are set on the top or bottom of the inner side of the flow guide ring (2). The surface of the flow guide bristles (3) also contacts the inner wall of the flow guide ring (2).

2. The sample diversion structure for routine urine testing based on kidney injury according to claim 1, characterized in that: The guide bristles (3) are hard bristles, and the diameter of a single guide bristle (3) is 0.01 mm.

3. A sample diversion structure for routine urine testing based on kidney injury according to claim 1 or 2, characterized in that: The top of the guide brush bristles (3) is also equipped with a retaining ring (301). The retaining ring (301) is a hollow ring body, and the two are fixedly connected. The retaining ring (301) and the multiple guide brush bristles (3) installed around the bottom surface form a hollow cone shape that is smaller at the top and larger at the bottom.

4. The sample diversion structure for routine urine testing based on kidney injury according to claim 3, characterized in that: The outer surface of the retaining ring (301) is also laterally connected with a positioning rod (302). The number of positioning rods (302) is at least two. The two positioning rods (302) are respectively installed at both ends of the outer surface of the retaining ring (301). One side of the positioning rod (302) is fixedly connected to the retaining ring (301) and the other side is fixedly connected to the inner wall of the guide ring (2).

5. The sample diversion structure for routine urine testing based on kidney injury according to claim 4, characterized in that: The flow guiding structure also includes a through hole (303) at the bottom of the side wall of the retaining ring (301). The through hole (303) surrounds the side wall of the retaining ring (301) and extends through its inner and outer sides. The through hole (303) is located below the flow guiding bristles (3).

6. The sample diversion structure for routine urine testing based on kidney injury according to claim 2, characterized in that: The flow guiding structure also includes a groove (4), which is opened around the inner wall of the flow guiding ring (2). The longitudinal section of the groove (4) on the inner wall of the flow guiding ring (2) is arc-shaped. The arc-shaped groove (4) has a small arc at the top and bottom and a large arc at the middle. The lower end of the groove (4) is surrounded by flow guiding bristles (3). The flow guiding bristles (3) are attached to the inner wall of the groove (4) and extend downward to the outer side of the opening below the flow guiding ring (2). The part of the flow guiding bristles (3) in the flow guiding ring (2) is also attached to the inner wall of the flow guiding ring (2).

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