Urine sampling device for clinical laboratory

Abstract

The invention discloses a urine sampling device for a clinical laboratory, relates to the technical field of urine sampling and detection, and aims to solve the technical problem that middle-section urine samples are difficult to collect due to physiological degeneration of old people, and the urine sampling device comprises a receiving cup, a collecting and filtering mechanism, a cutting assembly, an extrusion unit and a backflow unit. In the aspect of urine filtration, the collecting and filtering mechanism works cooperatively by means of the bearing cylinder, the circulating cylinder and other components, particles in urine are filtered accurately, and the particles are prevented from interfering with medical urine detection; the front section of urine is accurately intercepted and impurities are removed through the intercepting assembly; when the urine volume is insufficient, the extrusion unit and the backflow unit are tacitly matched to automatically supplement the urine sample volume, in addition, the urine flowing form can be optimized by arranging a cone in the circulation channel, all the assemblies are easy, convenient and flexible to operate, the overall structure is stable and good in sealing performance, and various medical urine detection requirements can be met; a high-quality urine sample is provided, and clinical examination work is powerfully supported.

Description

Technical Field

[0001] The present invention relates to the technical field of urine sampling, and more specifically, to a urine sampling device for a clinical laboratory. Background Art

[0002] Urine, as an important excretion pathway for human metabolic wastes, its components and characteristics can accurately reflect the health status of the human body; in terms of urinary system diseases, whether it is inflammatory diseases such as glomerulonephritis and cystitis, or stone diseases such as kidney stones and bladder stones, or urinary system tumors, characteristic changes corresponding thereto may appear in the urine;

[0003] The presence of particles in urine may be caused by physiological factors, pathological factors, etc. The characteristics of crystalline particles: Calcium oxalate crystals are usually colorless and transparent octahedrons, similar to envelope shapes, uric acid crystals have diverse morphologies, and can be rhombic, needle-shaped, flaky, etc. in yellow or brownish red, and calcium phosphate crystals are colorless and transparent triangular prisms or needles, often arranged in bundles or in a star shape; The characteristics of stone particles: The components of these particles are consistent with the corresponding stone components. For example, calcium oxalate stone particles are harder in texture, rough on the surface, and in a mulberry-like shape; Uric acid stone particles are usually yellow or brown, softer in texture, and smooth or granular on the surface, etc.

[0004] Urine tests have requirements for the amount of urine, and the required urine volumes for different test items vary: Routine urine examination: Generally, 5 - 10 milliliters of urine need to be collected. Urinary sediment analysis: Usually, 5 - 10 milliliters of urine are also required. Urine culture: Generally, 10 - 20 milliliters of urine need to be collected. 24-hour urinary protein quantification, other special examinations: Such as the detection of urine potassium, urine sodium, urine calcium, urine phosphorus, etc., usually also require a certain amount of urine to be collected according to specific test methods and instrument requirements, generally 5 - 10 milliliters or more to ensure the reliability of test results.

[0005] However, when collecting urine samples with particles in urine for testing, it may block the pipeline of the urine analyzer or affect the optical path system of the instrument, resulting in inaccurate instrument test results. For example, when there are a large number of bacterial clumps in urine, it may interfere with the counting and morphological observation of formed components such as red blood cells and white blood cells, making it impossible for doctors to accurately judge the real situation in the urine. At the same time, it changes the chemical properties such as the acidity, alkalinity, and specific gravity of urine, thereby affecting the accuracy of other test indicators;

[0006] At the same time, in the clinical medical process, due to physiological function degradation such as prostate hyperplasia and bladder function decline in the elderly, it leads to difficult urination and inability to provide a sufficient amount of midstream urine, greatly interfering with the normal progress of the detection work, resulting in a significant reduction in the accuracy of the test results and making it impossible to carry out urine tests. In view of this, we propose a urine sampling device for a clinical laboratory. Summary of the Invention

[0007] The object of the present invention is to provide a urine sampling device for a clinical laboratory to solve the technical problem of difficult collection of mid-stream urine samples due to physiological degradation of the elderly.

[0008] To solve the above technical problems, the present invention provides the following technical solution: A urine sampling device for a clinical laboratory, including a receiving cup, a collection and filtration mechanism, an interception component, a squeezing unit, and a reflux unit. The output end of the receiving cup is cross-connected with a vertical tube, and the bottom of the vertical tube is threadedly connected with a sampling tube;

[0009] The collection and filtration mechanism includes a receiving cylinder, a circulation cylinder, a cylindrical valve, a receiving plate, and an arc surface; the receiving cylinder, the circulation cylinder, the cylindrical valve, and the receiving plate move up or down simultaneously. The rotation of the cylindrical valve can discharge the front-section urine sample or collect the mid-stream urine sample. And when collecting the mid-stream urine sample, the rotation of the receiving plate can change the flow direction of the urine sample, and through the arc surface, the particulate matter in the urine sample precipitates at the lowest point of the arc surface, realizing the effects of non-stop discharge, collection, and filtration of the urine sample;

[0010] The interception component is arranged in the rubber interlayer at the output end of the receiving cup, and sealing rubber plates are respectively fixedly connected to the inner walls on both sides of the rubber interlayer; the squeezing unit includes a number of V-shaped frames arranged inside the rubber interlayer, and sliders are arranged on both sides of each V-shaped frame; the reflux unit includes L-shaped tubes arranged in a fan-shaped array inside the rubber interlayer. By squeezing the rubber interlayer, the two sealing rubber plates are closely attached, and the rubber interlayer forms a seal. During the squeezing process of the rubber interlayer, the V-shaped frames move through the sliders, causing the lower part of the rubber interlayer to become shriveled, squeezing the intercepted urine sample into the upper half of the rubber interlayer, and then by continuously squeezing the rubber interlayer, the urine sample is replenished into the sampling tube with insufficient urine sample volume through the L-shaped tubes. In terms of urine filtration in the present invention, the collection and filtration mechanism relies on the coordinated operation of components such as the receiving cylinder and the circulation cylinder to accurately filter the particulate matter in the urine and prevent it from interfering with medical urine tests; through the interception component, the front-section urine is accurately intercepted and impurities are excluded; when the urine volume is insufficient, the squeezing unit and the reflux unit cooperate tacitly to automatically replenish the urine sample volume. In addition, the device can optimize the urine flow pattern by setting a conical shape in the circulation passage. Each component is simple and flexible to operate, the overall structure is stable and the seal is good, and it can meet various medical urine test requirements, providing high-quality urine samples and strongly supporting clinical inspection work.

[0011] Preferably, a chute is opened on one side of the output end of the receiving cup, a waist-shaped groove is opened on the side surface of the vertical tube, the collection and filtration mechanism is arranged inside the vertical tube, and the interception component, the squeezing unit, and the reflux unit are arranged at the output end of the receiving cup.

[0012] Preferably, the receiving tube is movably sleeved inside the vertical tube, the flow tube is fixedly connected to the bottom of the receiving tube, the cylindrical valve portion is rotatably connected inside the flow tube, and the receiving plate is fixedly connected to the bottom of the flow tube.

[0013] Preferably, the collecting and filtering mechanism further comprises an inflow hole, which is provided on the side surface of the receiving tube, and the receiving tube surface and the inflow hole are symmetrically structured and fixedly connected with an adjustment handle, and the adjustment handle passes through the waist-shaped groove.

[0014] Preferably, an outflow passage is provided on the side surface of the circulation tube, and a circulation hole is provided on the side surface of the circulation tube below the outflow passage.

[0015] Preferably, the upper surface of the cylindrical valve is provided with an inclined surface, the inclined surface and the outflow channel form an inclined channel, and the cylindrical valve is sealed and adapted with the flow cylinder, and a plug is fixedly connected to the bottom of the cylindrical valve, and the plug is sealed and adapted with the flow hole;

[0016] When the cylindrical valve rotates, the inclined surface and the blocking piece respectively form an inclined channel or a closed channel with the outflow channel and the flow hole for the urine sample to flow. When the receiving cylinder moves up, the closed channel can prevent the front urine from entering. When the closed channel moves down, it can receive the middle urine sample.

[0017] Preferably, a sandwich plate is fixedly connected to the inner wall at the top of the sampling tube, a first spring is fixedly connected to the inner wall at the bottom of the sandwich plate, a sealing plate is fixedly connected to the top of the first spring, the sealing plate is sealingly adapted to the sandwich plate, the upper surface of the sealing plate is in movably contact with the lower surface of the receiving plate, a linear telescopic rod is fixedly connected to the top of the cylindrical valve, a knob is fixedly connected to the top of the linear telescopic rod, and the knob is arranged on the top surface of the vertical tube.

[0018] Preferably, the interception assembly further comprises a secondary pipe, the secondary pipe is slidably connected to one side of the receiving cup output end through a guide plate, and the guide plate is slidably connected inside the slide groove, and the guide plate is symmetrically provided with a guide groove on one side close to the secondary pipe;

[0019] When the rubber interlayer is expanded, a gap is left between the two sealing rubber plates, and part of the front urine flows into the rubber interlayer from the gap, so as to intercept part of the front urine and remove the particles in the urine to supplement the insufficient capacity of the middle urine; when the rubber interlayer is closed, the two rubber interlayers are squeezed against each other to form a seal.

[0020] Preferably, the extrusion unit further includes a plurality of first hinge frames. Each two of the first hinge frames are fixedly connected to both ends of the V-shaped frame. An arc-shaped rod is arranged on the side surface of each first hinge frame. A torsion spring is movably sleeved on the pin of each V-shaped frame, and both ends of the torsion spring are fixedly connected to the V-shaped frame and the rubber interlayer respectively. The inner wall of the rubber interlayer is symmetrically provided with straight grooves. Each pair of opposite straight grooves corresponds to the position of the V-shaped frame. Each slider is slidably connected to the inside of the straight groove. A second hinge frame is fixedly connected to one side of each slider. The inner wall of each second hinge frame is symmetrically provided with clamping grooves, and the clamping grooves are adapted to the side surface of the first hinge frame;

[0021] When the rubber interlayer is closing, the slider moves in an arc, causing the first hinge frame to rotate out of the clamping groove, articulate with the arc-shaped rod, and apply a force to the V-shaped frame through the torsion spring. The sliders move towards each other, pulling the lower part of the rubber interlayer to close it, so that the urine at the bottom is moved to the upper part inside the rubber interlayer by the extrusion force. And during this process, the gas flows out from the L-shaped pipe to dredge the inside of the L-shaped pipe.

[0022] Preferably, the reflux unit further includes a plurality of holes. The plurality of holes are all arranged in an annular array on the top surface of the L-shaped pipe. A plurality of sealing grooves are symmetrically arranged on the inner walls of the two sealing rubber plates. Each pair of opposite sealing grooves corresponds to the position of the L-shaped pipe. The L-shaped pipe is sleeved inside each pair of opposite sealing grooves. A folding plate is movably sleeved on the top of each L-shaped pipe, and both sides of the folding plate are in movable contact with the inner wall of the rubber interlayer. The output ends of the plurality of L-shaped pipes are jointly and fixedly communicated with a conical disk, and the conical disk is sleeved inside the receiving cup;

[0023] When the urine in the front section flows in the receiving cup, the flow pattern of the urine is changed through the surface shape of the conical disk, and it flows into the rubber interlayer through the diversion groove to intercept the filtered urine in the front section; during the closing process of the rubber interlayer, the gas inside the rubber interlayer flows out from the L-shaped pipe to dredge the L-shaped pipe, and the intercepted urine flows into the surface of the arc-shaped surface in the vertical pipe from the L-shaped pipe to supplement the sampling pipe with insufficient urine sample volume.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. In terms of urine filtration, the collection and filtration mechanism of the present invention relies on the coordinated operation of components such as the receiving cylinder and the circulation cylinder to accurately filter the particulate matter in the urine and prevent it from interfering with medical urine detection; through the interception component, the urine in the front section is accurately intercepted and impurities are removed; when the urine volume is insufficient, the extrusion unit and the reflux unit cooperate tacitly to automatically supplement the urine sample volume. In addition, the device can optimize the urine flow pattern by setting a conical shape in the circulation passage. Each component is simple and flexible to operate, the overall structure is stable and the sealing is good, and it can meet various medical urine detection requirements, provide high-quality urine samples, and strongly support clinical inspection work.

[0026] 2. The secondary pipeline of the intercepting component of the present invention slides in the chute on one side of the output end of the receiving cup through the guide vane. The rubber interlayer is connected between the secondary pipeline and the receiving cup. There are gaps left by the sealing rubber plates on both inner walls when the rubber interlayer is expanded, allowing the urine in the front section to flow in. This design can accurately intercept a part of the urine in the front section, and at the same time exclude the particulate matter in the urine, avoiding the influence of the possible impurities in the front-section urine on the detection of the middle-section urine, ensuring the purity of the middle-section urine sample, and providing guarantee for accurate detection. Moreover, this design can also prevent the problem of insufficient volume of the middle-section urine caused by various reasons, ensuring the smooth progress of the urine detection work.

[0027] 3. When the urine volume is insufficient in the present invention, the extrusion unit plays a role. The secondary pipeline moves towards the receiving cup to squeeze the rubber interlayer. During the closing process, the slider moves in an arc. The first hinge frame moves out of the card slot and is movably connected to the arc-shaped rod, enabling the slider to be hinged to the V-shaped frame. The torsion spring applies a force to the V-shaped frame, causing the lower part of the rubber interlayer to close first, squeezing the urine at the bottom into the top. At the same time, when the rubber interlayer closes, the internal gas in the L-shaped pipe of the reflux unit first flows out to dredge the pipeline, and then the squeezed urine flows into the vertical pipe from the L-shaped pipe and is located on the arc surface, and then flows into the sampling pipe through precipitation, effectively supplementing the sample volume and solving the problem that the detection cannot be carried out or the result is inaccurate due to insufficient sample volume.

[0028] 4. In the present invention, the conical disc of the reflux unit is sleeved inside the receiving cup. When the urine in the front section flows in the receiving cup, the surface shape of the conical disc can change the urine flow pattern, making it easier for the urine to flow through the diversion groove into the rubber interlayer, thereby increasing the storage volume of the urine in the front section. This not only helps to more fully intercept the urine in the front section, but also optimizes the entire sampling process by reasonably guiding the urine flow, further improving the practicality and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0030] Figure 2 is a structural sectional schematic diagram of the present invention in the use state of intercepting the urine sample in the front section;

[0031] Figure 3 is of the present invention Figure 2 is an enlarged structural schematic diagram of part A in

[0032] Figure 4 is of the present invention Figure 2 is an enlarged structural schematic diagram of part B in

[0033] Figure 5 is a structural sectional schematic diagram of the present invention in the use state of sampling the urine sample in the middle section;

[0034] Figure 6 Schematic diagram of the three-dimensional explosion structure of the present invention, showing the three-dimensional explosion of the intercepting component;

[0035] Figure 7 Schematic diagram of the three-dimensional enlarged structure of the collection and filtration mechanism of the present invention;

[0036] Figure 8 Schematic diagram of the three-dimensional explosion structure of the collection and filtration mechanism of the present invention;

[0037] Figure 9 Schematic diagram of the sectional structure of the intercepting component of the present invention;

[0038] Figure 10 Schematic diagram of the internal structure of the rubber sandwich layer of the present invention;

[0039] Figure 11 Schematic diagram of the three-dimensional enlarged structure of the extrusion unit of the present invention;

[0040] Figure 12 Schematic diagram of the three-dimensional explosion structure of the extrusion unit of the present invention;

[0041] Figure 13 For the present invention Figure 12 Enlarged structure diagram at position C;

[0042] Figure 14 Schematic diagram of the three-dimensional assembly structure of the present invention.

[0043] Explanation of the reference numerals in the figure: 1, receiving cup; 11, vertical pipe; 12, sampling pipe; 13, chute; 14, waist-shaped slot; 2, collection and filtration mechanism; 21, receiving cylinder; 211, inflow hole; 212, adjusting handle; 22, circulation cylinder; 221, outflow channel; 222, circulation hole; 23, cylindrical valve; 231, inclined surface; 232, blocking piece; 24, receiving plate; 241, arc surface; 25, sandwich plate; 251, first spring; 252, sealing plate; 26, linear telescopic rod; 261, knob; 3, intercepting component; 31, sub-pipeline; 311, guide vane; 312, guide groove; 32, rubber sandwich layer; 33, sealing rubber plate; 4, extrusion unit; 41, V-shaped frame; 411, first hinge frame; 412, arc rod; 413, torsion spring; 42, straight slot; 43, slider; 431, second hinge frame; 432, clamping groove; 5, reflux unit; 51, L-shaped pipe; 511, hole; 52, sealing groove; 53, folded plate; 54, conical disc. Detailed implementation manners

[0044] Example 1,

[0045] As Figure 1-2 And Figure 5-9As shown in the figure, a urine sampling device for a clinical laboratory involved in an embodiment of the present invention includes a receiving cup 1, a collection and filtration mechanism 2, an interception component 3, a squeezing unit 4, and a reflux unit 5;

[0046] The output end of the receiving cup 1 is cross-connected with a vertical pipe 11. The bottom of the vertical pipe 11 is threadedly connected with a sampling pipe 12. A chute 13 is provided on one side of the output end of the receiving cup 1, and a waist-shaped groove 14 is provided on the side surface of the vertical pipe 11;

[0047] The collection and filtration mechanism 2 is arranged inside the vertical pipe 11, and the interception component 3, the squeezing unit 4, and the reflux unit 5 are arranged at the output end of the receiving cup 1;

[0048] The collection and filtration mechanism 2 includes a receiving cylinder 21. The receiving cylinder 21 is movably sleeved inside the vertical pipe 11. An inflow hole 211 is provided on the side surface of the receiving cylinder 21. The inflow hole 211 is adapted to the flow channel of the receiving cup 1. A regulating handle 212 is fixedly connected to the surface of the receiving cylinder 21 symmetrically with the inflow hole 211. The regulating handle 212 passes through the waist-shaped groove 14. The bottom of the receiving cylinder 21 is fixedly connected with a flow-through cylinder 22. An outflow channel 221 is provided on the side surface of the flow-through cylinder 22. A through hole 222 is provided on the side surface of the flow-through cylinder 22 below the outflow channel 221. A cylindrical valve 23 is rotatably connected inside the flow-through cylinder 22. An inclined surface 231 is provided on the upper surface of the cylindrical valve 23. The inclined surface 231 and the outflow channel 221 form an inclined channel, and the cylindrical valve 23 closes the flow space of the flow-through cylinder 22. A blocking piece 232 is fixedly connected to the bottom of the cylindrical valve 23, and the blocking piece 232 is hermetically adapted to the through hole 222. The bottom of the flow-through cylinder 22 is fixedly connected with a receiving plate 24. The receiving plate 24 is slidably connected inside the vertical pipe 11 and is hermetically adapted. The upper surface of the receiving plate 24 is an arc surface 241, and the arc surface 241 is adapted to the inner wall of the receiving cup 1. The inner wall of the top of the sampling pipe 12 is fixedly connected with a sandwich plate 25. A first spring 251 is fixedly connected to the inner wall of the bottom of the sandwich plate 25. The top of the first spring 251 is fixedly connected with a sealing plate 252. The sealing plate 252 is hermetically adapted to the sandwich plate 25. The upper surface of the sealing plate 252 is in movable contact with the lower surface of the receiving plate 24. A linear expansion and contraction rod 26 is fixedly connected above the inclined surface 231 of the cylindrical valve 23. The top of the linear expansion and contraction rod 26 is fixedly connected with a knob 261, and the knob 261 is arranged on the top surface of the vertical pipe 11.

[0049] Specifically, the inflow hole 211 is coaxial with the output end of the receiving cup 1. The receiving cylinder 21 moves upward or downward, causing the inflow hole 211 to contact the inner wall of the vertical pipe 11 to form a seal. When moving downward, the inflow hole 211 is coaxial with the output end of the receiving cup 1 and can receive urine. The circulation cylinder 22 is vertically coaxial with the vertical pipe 11. The cylindrical valve 23 rotates to seal or allow the outflow channel 221 and the circulation hole 222 to communicate. When in communication, urine flows from the outflow channel 221 into the vertical pipe 11 above the arc surface 241. Particles contained in the urine precipitate at the lowest point of the arc surface 241. After precipitation, the water level of the urine rises and flows into the interior of the circulation cylinder 22 through the circulation hole 222. When sealed, the blocking piece 232 seals the circulation hole 222, and the outflow channel 221 is hermetically adapted to the surface of the cylindrical valve 23. The receiving cylinder 21 is located above the vertical pipe 11, and the circulation cylinder 22 is located in the middle of the circulation space of the receiving cup 1. When urine is flowing, it can prevent the front-section urine from flowing into the interior of the circulation cylinder 22. The receiving plate 24 moves upward or downward in the vertical pipe 11. Moving upward causes the arc surface 241 to be adapted to the inner wall of the receiving cup 1 to form a channel, and moving downward causes the receiving plate 24 to be located below the interior of the vertical pipe 11 to form a precipitation chamber for filtering particles in the urine. The sealing plate 252 moves up and down in the sandwich plate 25 due to the upward or downward movement of the receiving plate 24, forming a sealed or open state of the opening of the sampling pipe 12 for collecting urine.

[0050] In terms of filtration, the collection and filtration mechanism 2 of the present invention precisely filters urine particles through the coordinated operation of the receiving cylinder 21, the circulation cylinder 22, the cylindrical valve 23, and the receiving plate 24 to prevent them from interfering with the detection. Through the design of the interception component 3, the front-section urine is precisely intercepted and impurities are excluded. When the urine volume is insufficient, the extrusion unit 4 and the reflux unit 5 cooperate tacitly to automatically supplement the sample volume. In addition, a conical component is arranged in the circulation channel of the device to optimize the urine flow pattern. Each component is simple and flexible to operate, the overall structure is stable and well-sealed, and it can adapt to various detection requirements. Whether it is a conventional or special detection, it can provide high-quality urine samples, strongly supporting clinical laboratory work.

[0051] Embodiment 2

[0052] As Figure 3 、 Figure 6 and Figure 9-10 shown, in the embodiment of the present invention, the interception component 3 includes a sub-pipeline 31. The sub-pipeline 31 is slidably connected to one side of the output end of the receiving cup 1 through a guide vane 311, and the guide vane 311 is slidably connected inside the chute 13. The guide vane 311 is symmetrically provided with guide grooves 312 on the side close to the sub-pipeline 31. The sub-pipeline 31 and the opposite end of the receiving cup 1 are jointly fixedly connected with a rubber sandwich 32. Sealing rubber plates 33 are respectively fixedly connected to the inner walls on both sides of the rubber sandwich 32, and the opposite sides of the two sealing rubber plates 33 are in movable contact.

[0053] Specifically, the telescopic or stretching of the auxiliary pipeline 31 causes the rubber interlayer 32 to expand or close. When the rubber interlayer 32 expands, a gap is left between the two sealing rubber plates 33. The urine in the front section flows into the rubber interlayer 32 through the gap, so as to intercept part of the urine in the front section, and exclude the particulate matter in the urine, preventing the insufficient volume of the urine in the middle section and affecting the urine test. When the rubber interlayer 32 closes, the two rubber interlayers 32 squeeze each other to make the rubber interlayer 32 form a seal.

[0054] In the present invention, the auxiliary pipeline 31 of the interception component 3 slides in the chute 13 on one side of the output end of the receiving cup 1 through the guide vane 311. The rubber interlayer 32 is connected between the auxiliary pipeline 31 and the receiving cup 1. A gap is left between the sealing rubber plates 33 on both inner walls when the rubber interlayer 32 expands, allowing the urine in the front section to flow in. This design can accurately intercept part of the urine in the front section, and at the same time exclude the particulate matter in the urine, avoiding the influence of the possible impurities in the front section urine on the urine test in the middle section, ensuring the purity of the urine sample in the middle section, providing a guarantee for accurate detection. Moreover, this design can also prevent the problem of insufficient volume of the urine in the middle section caused by various reasons, ensuring the smooth progress of the urine test work.

[0055] Embodiment 3

[0056] As Figure 3 、 Figure 9 and Figure 11-13 shown, in the embodiment of the present invention, the extrusion unit 4 includes a plurality of V-shaped frames 41. The plurality of V-shaped frames 41 are connected to the inner wall of the bottom of the rubber interlayer 32 in a fan-shaped array through pins. Two first hinge frames 411 are fixedly connected to both ends of each V-shaped frame 41. An arc-shaped rod 412 is arranged on the side surface of each first hinge frame 411. A torsion spring 413 is movably sleeved on the pin of each V-shaped frame 41, and both ends of the torsion spring 413 are fixedly connected to the V-shaped frame 41 and the rubber interlayer 32 respectively. The inner wall of the rubber interlayer 32 is symmetrically provided with straight grooves 42, and every two opposite straight grooves 42 correspond to the position of the V-shaped frame 41. A slider 43 is slidably connected inside every two opposite straight grooves 42. A second hinge frame 431 is fixedly connected to one side of each slider 43. A clamping groove 432 is symmetrically arranged on the inner wall of each second hinge frame 431, and the clamping groove 432 is adapted to the side surface of the first hinge frame 411.

[0057] Specifically, the telescopic or stretching of the auxiliary pipe 31 causes the rubber interlayer 32 to expand or close. During the closing process of the rubber interlayer 32, the slider 43 moves in an arc, causing the first hinge frame 411 to move out of the card slot 432. And the first hinge frame 411 is movably connected to the arc-shaped rod 412, further enabling the slider 43 to be hinged to the V-shaped frame 41. And a force is applied to the V-shaped frame 41 through the torsion spring 413, so that the lower part of the rubber interlayer 32 is closed first, squeezing the urine at the bottom into the top inside the rubber interlayer 32; during the expansion process of the rubber interlayer 32, every two opposite sliders 43 move in opposite directions, making the first hinge frame 411 sleeved in the card slot 432, so that the slider 43 is fixed to the V-shaped frame 41 to receive the urine in the previous section.

[0058] When the urine volume is insufficient in the present invention, the extrusion unit 4 plays a role. The auxiliary pipe 31 moves towards the receiving cup 1 to squeeze the rubber interlayer 32. During the closing process, the slider 43 moves in an arc, the first hinge frame 411 moves out of the card slot 432 and is movably connected to the arc-shaped rod 412, enabling the slider 43 to be hinged to the V-shaped frame 41. The torsion spring 413 applies a force to the V-shaped frame 41, so that the lower part of the rubber interlayer 32 is closed first, squeezing the bottom urine into the top. At the same time, when the rubber interlayer 32 is closed, the internal gas in the L-shaped pipe 51 of the reflux unit first flows out to dredge the pipeline, and then the squeezed urine flows into the vertical pipe 11 from the L-shaped pipe 51 and is located on the arc surface 241, and then flows into the sampling pipe 12 after precipitation, effectively supplementing the sample volume and solving the problem that the detection cannot be carried out or the result is inaccurate due to insufficient sample volume.

[0059] Embodiment 4

[0060] As Figure 4 and Figure 10 shown, as another embodiment of the present invention, the reflux unit 5 includes a plurality of L-shaped pipes 51. The plurality of L-shaped pipes 51 are fixedly connected to the inner wall of the top of the rubber interlayer 32 in a fan-shaped array. A plurality of holes 511 are formed in an annular array on the top surface of each L-shaped pipe 51. A plurality of sealing grooves 52 are symmetrically formed in the inner walls of the two sealing rubber plates 33. Every two opposite sealing grooves 52 correspond to the position of the L-shaped pipe 51, and the L-shaped pipe 51 is sleeved inside every two opposite sealing grooves 52. A folding plate 53 is movably sleeved on the top of each L-shaped pipe 51, and both sides of the folding plate 53 are in movable contact with the inner wall of the rubber interlayer 32. The output ends of the plurality of L-shaped pipes 51 are fixedly connected and communicated with a conical disk 54, and the conical disk 54 is sleeved inside the receiving cup 1.

[0061] Specifically, during the closing process of the rubber interlayer 32, the gas inside the rubber interlayer 32 flows out from the L-shaped tube 51 to dredge the L-shaped tube 51. Then, the intercepted urine flows into the vertical tube 11 from the L-shaped tube 51 and is located on the arc surface 241, thereby supplementing the insufficient urine sample volume. Moreover, when the front-section urine flows in the receiving cup 1, the surface shape of the conical disk 54 changes the urine flow pattern, and the urine flows into the rubber interlayer 32 through the diversion groove 312, so as to increase the storage amount of the front-section urine.

[0062] In the present invention, the conical disk 54 of the reflux unit 5 is sleeved inside the receiving cup 1. When the front-section urine flows in the receiving cup 1, the surface shape of the conical disk 54 can change the urine flow pattern, making it easier for the urine to flow into the rubber interlayer 32 through the diversion groove 312, thereby increasing the storage amount of the front-section urine. This not only helps to intercept the front-section urine more fully, but also optimizes the entire sampling process by reasonably guiding the urine flow, further improving the practicability and reliability of the device.

[0063] Working principle: This embodiment provides a urine sampling device for a laboratory. For the front-section urine partial sampling, the urine flows in the receiving cup 1. When passing through the conical disk 54, the urine flow pattern is changed by its surface shape, causing part of the front-section urine to flow downward from the diversion groove 312 and flow into the interior of the rubber interlayer 32 through the gap between the two sealing rubber plates 33, and the rest of the urine flows out from the auxiliary pipeline 31;

[0064] For the middle-section urine sampling: By pressing the adjustment handle 212, the receiving cylinder 21, the circulation cylinder 22, the cylindrical valve 23 and the receiving plate 24 are simultaneously moved downward, and then the cylindrical valve 23 is rotated to make the inclined surface 231 rotate towards the outflow channel 221 to form an inclined channel and the circulation hole 222 is unblocked. At this time, the inflow hole 211 is communicated with the circulation channel of the receiving cup 1, and the middle-section urine flows into the interior of the circulation cylinder 22 through the inflow hole 211 and flows out from the inclined channel, and is precipitated in the vertical tube 11 above the receiving plate 24. The particulate matter is located at the lowest point of the arc surface 241. As the urine level continuously rises, it flows into the interior of the receiving plate 24 through the circulation hole 222. At the same time, when the receiving plate 24 moves downward, the sealing plate 252 is pushed to open the opening of the sampling tube 12, and the urine sample enters the sampling tube 12;

[0065] Sampling tube 12 for supplementing insufficient urine volume: When the urine volume is insufficient, by applying a force to the auxiliary pipeline 31, making it move towards the receiving cup 1, applying extrusion pressure on both sides of the rubber interlayer 32, the two sealing rubber plates 33 move towards each other, and a sealed cavity is formed within the rubber interlayer 32. Among them, when the rubber interlayer 32 is squeezed, the slider 43 moves in an arc, the first hinge frame 411 moves out of the clamping groove 432, enabling the second hinge frame 431 to be hinged to the arc-shaped rod 412, resulting in multi-angle movement between the V-shaped frame 41 and the slider 43, and applying a force to the V-shaped frame 41 through the torsion spring 413. The V-shaped frame 41 rotates, and the slider 43 slides within the straight groove 42. Relative to the two sliders 43, the inner walls on both sides of the rubber interlayer 32 move towards each other, realizing that the lower half of the rubber interlayer 32 fits tightly first. The air in the sealed cavity flows out from the L-shaped tube 51, which can dredge the L-shaped tube 51. The urine sample inside it flows upward through extrusion, and the rubber interlayer 32 is continuously squeezed, causing the urine inside it to flow out from the L-shaped tube 51 and flow into the vertical tube 11 above the receiving plate 24, and then flow into the sampling tube 12 through precipitation. During the continuous squeezing of the rubber interlayer 32, the input port of the L-shaped tube 51 is supported by the folding plate 53, preventing the input port from fitting with the inner wall of the rubber interlayer 32 and affecting the urine flow effect.

[0066] The embodiments disclosed in the present invention are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A urine sampling device for laboratory use, comprising a receiving cup, a collecting and filtering mechanism, an intercepting component, an extruding unit, and a reflux unit, characterized in that: The output end of the receiving cup is cross-connected with a vertical pipe, and the bottom of the vertical pipe is threadedly connected with a sampling tube; The collecting and filtering mechanism comprises a receiving tube, a circulation tube, a cylindrical valve, a receiving plate and an arc surface; the receiving tube, the circulation tube, the cylindrical valve and the receiving plate move upward or downward at the same time, and the rotation of the cylindrical valve can discharge the front urine sample or collect the middle urine sample, and when collecting the middle urine sample, the rotation of the receiving plate can change the flow direction of the urine sample, and through the arc surface, the particles in the urine sample are precipitated at the lowest point of the arc surface, so as to achieve the effect of discharge, collection and filtration of the urine sample without stopping; The intercepting assembly is arranged in the rubber interlayer at the output end of the receiving cup, and the inner walls on both sides of the rubber interlayer are fixedly connected with sealing rubber plates respectively; the extrusion unit includes a plurality of V-shaped frames arranged inside the rubber interlayer, and sliders are arranged on both sides of each V-shaped frame; the reflux unit includes L-shaped tubes arranged in a fan-shaped array inside the rubber interlayer, and by squeezing the rubber interlayer, the two sealing rubber plates are tightly fitted, and the rubber interlayer forms a seal. During the squeezing of the rubber interlayer, the V-shaped frame moves through the slider, so that the lower part of the rubber interlayer is shrunk, and the intercepted urine sample is squeezed into the upper part of the rubber interlayer, and then by continuously squeezing the rubber interlayer, the urine sample is supplemented into the sampling tube with insufficient urine sample capacity through the L-shaped tube.

2. A urine sampling device for laboratory use according to claim 1, characterized in that: A slide groove is provided on one side of the receiving cup output end, a waist-shaped groove is provided on the side surface of the vertical tube, the collecting and filtering mechanism is arranged inside the vertical tube, and the intercepting assembly, the extrusion unit and the reflux unit are arranged at the receiving cup output end.

3. A urine sampling device for laboratory use according to claim 2, characterized in that: The receiving tube is movably sleeved inside the vertical tube, the flow tube is fixedly connected to the bottom of the receiving tube, the cylindrical valve part is rotatably connected inside the flow tube, and the receiving plate is fixedly connected to the bottom of the flow tube.

4. A urine sampling device for laboratory use according to claim 3, characterized in that: The collecting and filtering mechanism also includes an inflow hole, which is arranged on the side surface of the receiving tube. The receiving tube surface and the inflow hole are symmetrically structured and fixedly connected with an adjustment handle, and the adjustment handle passes through the waist-shaped groove.

5. A urine sampling device for laboratory use according to claim 4, characterized in that: An outflow passage is provided on the side surface of the circulation tube, and a circulation hole is provided on the side surface of the circulation tube below the outflow passage.

6. A urine sampling device for laboratory use according to claim 5, characterized in that: The upper surface of the cylindrical valve is provided with an inclined surface, the inclined surface and the outflow channel form an inclined channel, and the cylindrical valve is sealed and adapted with the flow cylinder, and a plug is fixedly connected to the bottom of the cylindrical valve, and the plug is sealed and adapted with the flow hole; When the cylindrical valve rotates, the inclined surface and the blocking piece respectively form an inclined channel or a closed channel with the outflow channel and the flow hole for the urine sample to flow. When the receiving cylinder moves up, the closed channel can prevent the front urine from entering. When the closed channel moves down, it can receive the middle urine sample.

7. A urine sampling device for laboratory use according to claim 6, characterized in that: The top inner wall of the sampling tube is fixedly connected with a sandwich plate, the bottom inner wall of the sandwich plate is fixedly connected with a first spring, the top of the first spring is fixedly connected with a sealing plate, the sealing plate is sealingly adapted to the sandwich plate, the upper surface of the sealing plate is in movable contact with the lower surface of the receiving plate, the top of the cylindrical valve is fixedly connected with a linear telescopic rod, the top of the linear telescopic rod is fixedly connected with a knob, and the knob is arranged on the top surface of the vertical tube.

8. A urine sampling device for laboratory use according to claim 7, characterized in that: The interception assembly also includes a secondary pipe, which is slidably connected to one side of the receiving cup output end through a guide plate, and the guide plate is slidably connected inside the chute, and the guide plate is symmetrically provided with a guide groove on one side close to the secondary pipe; When the rubber interlayer is expanded, a gap is left between the two sealing rubber plates, and part of the front urine flows into the rubber interlayer from the gap, so as to intercept part of the front urine and remove the particles in the urine to supplement the insufficient capacity of the middle urine; when the rubber interlayer is closed, the two rubber interlayers are squeezed against each other to form a seal.

9. The urine sampling device for laboratory use according to claim 8, characterized in that: The extrusion unit further comprises a plurality of first articulated frames, each of the two first articulated frames are fixedly connected to the two ends of the V-shaped frame, a curved rod is arranged on the side surface of each first articulated frame, a torsion spring is movably sleeved on the latch pin of each V-shaped frame, and the two ends of the torsion spring are respectively fixedly connected to the V-shaped frame and the rubber interlayer, the inner wall of the rubber interlayer is symmetrically structured with straight grooves, each of the two relatively straight grooves corresponds to the position of the V-shaped frame, each of the sliders is slidably connected inside the straight groove, one side of each slider is fixedly connected to a second articulated frame, and the inner wall of each second articulated frame is symmetrically structured with a slot, and the slot is adapted to the side of the first articulated frame; When the rubber interlayer is closing, the slider moves in an arc shape, causing the first hinge frame to rotate out of the slot and hinged with the arc rod, and exerts a force on the V-shaped frame through the torsion spring. The slider moves towards each other, pulling the lower part of the rubber interlayer to close it, thereby causing the urine at the bottom to move to the upper part of the rubber interlayer through the squeezing force, and during the squeezing process, gas flows out from the L-shaped tube to clear the inside of the L-shaped tube.

10. The urine sampling device for laboratory use according to claim 9, characterized in that: The reflux unit further comprises a plurality of holes, which are formed in an annular array on the top surface of the L-shaped tube, the inner walls of the two sealing rubber plates are formed in a symmetrical structure with a plurality of sealing grooves, and each pair of two sealing grooves corresponds to the position of the L-shaped tube, and the L-shaped tube is sleeved inside each pair of two sealing grooves, each L-shaped tube top is movably sleeved with a folding plate, and both sides of the folding plate are movably in contact with the inner wall of the rubber interlayer, and the output ends of the plurality of L-shaped tubes are commonly fixedly connected with a conical disk, and the conical disk is sleeved inside the receiving cup; When the front urine flows in the receiving cup, the shape of the surface of the conical disk changes the flow pattern of the urine, and the urine flows into the rubber interlayer through the guide groove to intercept the filtered front urine; in the process of closing the rubber interlayer, the gas inside the rubber interlayer flows out from the L-shaped tube to clear the L-shaped tube, and the intercepted urine flows from the L-shaped tube to the surface of the arc surface inside the vertical tube to supplement the sampling tube with insufficient urine sample capacity.

Images