A midstream urine non-polluting sampling device

Abstract

The present invention relates to the technical field of medical sampling devices, and discloses a midstream urine pollution-free sampling device, comprising a collection cup, a gripping handle arranged at the top of the collection cup, an inner liner arranged inside the collection cup, an eaves arranged at the top of the liner, an overflow port arranged on the surface of the eaves, a sample tube inserted at the bottom of the collection cup, and a partition component arranged in the collection cup, wherein the partition component specifically comprises a diaphragm arranged above the eaves. The midstream urine pollution-free sampling device, by setting the partition component, when collecting urine, the front urine falls into the inner liner, after the inner liner overflows, the hanging belt is removed from the hanging column, the diaphragm is separated from the inner wall of the collection cup by the impact of urine, and the midstream urine that subsequently enters flows into the collection cup from the overflow port, and is finally collected into the sample tube, so that the diaphragm separates the midstream urine from the front urine, avoids the mixing of the midstream urine and the front urine, ensures the purity of the midstream urine, and improves the accuracy of the test result.

Description

Technical Field

[0001] The invention relates to the technical field of medical sampling devices, in particular to a midstream urine pollution-free sampling device. Background Art

[0002] Urine testing is a common medical examination method. The health status of the human body can be understood through the analysis of urine, such as routine urine examination, urine sediment examination, urine biochemical examination and urine bacterial culture. These tests are meaningful for early detection of diseases, monitoring of disease progression and auxiliary diagnosis. When obtaining urine samples for testing, patients are generally asked to urinate into a collection cup, and then a small amount is poured into a sample test tube and sealed for preservation.

[0003] The patent publication number CN219147662U discloses a mid-stream urine sampling device, including: a main urine cup, a urine sampling component, a one-way blocking component, and a primary urine cup; the urine sampling component is connected to the main urine cup, and the primary urine cup is connected to the bottom of the main urine cup, and a one-way blocking component is provided between the main urine cup and the primary urine cup. When the main urine cup of the utility model receives urine, the urine immediately flows into the primary urine cup in a one-way direction, and the urine sampling component samples mid-stream urine from the main urine cup, and the sampled urine is all mid-stream urine, ensuring that the test results are more accurate.

[0004] The prior art has the following defects:

[0005] During urine testing, since the front urine may be contaminated by bacteria at the external urethral orifice, the back urine may be affected by sediment in the bladder, and the midstream urine is relatively pure and can better reflect the true condition of the urinary system, in order to improve the accuracy of the test results, most staff will recommend collecting midstream urine samples. However, collecting midstream urine samples will cause great inconvenience to the patient, as the patient needs to excrete part of the urine, then force urination in the midstream, insert the collection cup, and continue to urinate. When the collection cup is about to overflow, the patient must force urination in the midstream again, remove the collection cup, and then continue to complete the urination. Two forced midstream urinations will damage the bladder detrusor muscle and micturition reflex system, and will also cause discomfort to the human body.

[0006] Some hospitals will have collection cups for midstream urine samples. The principle is to design an overflow port, and the front urine accumulates at the bottom of the cup, and the midstream urine flows out of the overflow port into the sample test tube, thus completing the collection of midstream urine. However, since urine has a certain initial pressure when it is discharged, and is affected by gravity when it flows into the collection cup from top to bottom, when the urine impacts the collection cup, it does not stay on the surface of the urine, which will cause the midstream urine to mix with the front urine accumulated at the bottom of the collection cup, resulting in the obtained midstream urine being impure, affecting the test results. Summary of the invention

[0007] In view of the problem in the prior art that midstream urine is mixed with forestream urine, resulting in impure midstream urine, a pollution-free sampling device for midstream urine is proposed.

[0008] The present application provides a midstream urine pollution-free sampling device, the purpose of which is to obtain pure midstream urine.

[0009] The technical scheme of the present invention is: a midstream urine pollution-free sampling device, comprising a collection cup, a gripping handle arranged at the top of the collection cup, an inner liner arranged inside the collection cup, an eaves plate arranged at the top of the inner liner, an overflow port arranged on the surface of the eaves plate, a sample tube inserted into the bottom of the collection cup, and a partition assembly arranged in the collection cup, wherein the partition assembly specifically comprises a diaphragm arranged above the eaves plate, a hanging belt arranged at the top of the diaphragm, a hanging column arranged on the surface of the gripping handle, and a hanging hole arranged at one end of the hanging belt away from the diaphragm;

[0010] The liner is located at the center of the collection cup, the top of the eaves extends toward the inner wall of the collection cup and fits therewith, the diaphragm fits the collection cup and the eaves, the diaphragm is made of elastic silicone, the diaphragm is a quadrilateral, and the other three sides except the top edge are adhered to the collection cup and the liner, the hanging belt extends upward along the inner wall of the collection cup, and is buckled on the hanging column through the hanging hole.

[0011] Furthermore, the upper opening of the collection cup is arranged in a "V" shape, and an arc-shaped buffer zone is arranged at the bottom of the "V", and the gripping handle is located above the buffer zone.

[0012] Furthermore, an impact zone is provided on the surface of the buffer zone, the impact zone is in a water drop shape, and the impact zone is located above the lining.

[0013] Furthermore, the diaphragm is laid in the impact zone, and the top edge of the diaphragm is flush with the top edge of the impact zone.

[0014] Furthermore, a stabilizing component is provided between the collection cup, the gripping handle and the diaphragm, and the stabilizing component specifically includes an inner cavity and air holes opened inside the wall of the collection cup, and an adsorption port opened on the inner wall of the collection cup;

[0015] One end of the air hole is connected to the inner cavity, and the other end passes through the end of the gripping handle away from the collection cup. The adsorption port is connected to the inner cavity, and the adsorption port is distributed in the impact area and extends to both sides and is evenly laid in the coverage area of ​​the diaphragm.

[0016] Furthermore, the stabilizing assembly also includes a plug hole opened on the inner wall of the collection cup, an elastic plate arranged on the top edge of the diaphragm, and a plug arranged on the surface of the elastic plate;

[0017] The plug hole is communicated with the inner cavity, the plug passes through the inner cavity and is inserted into the plug hole, and the elastic plate is in contact with the inner wall of the impact zone.

[0018] Furthermore, the stabilizing assembly further comprises a mounting groove formed on the surface of the gripping handle, and an air bag disposed inside the mounting groove;

[0019] The installation groove is communicated with the air hole, and the hanging belt passes through the surface of the airbag to press the airbag into the installation groove.

[0020] Furthermore, a urination assembly is arranged on the outside of the collection cup, and the urination assembly specifically comprises a front urination opening and a middle and rear urination opening opened on the surface of the collection cup, and a front urination tube and a middle and rear urination tube respectively inserted into the front urination opening and the middle and rear urination opening;

[0021] The front urination opening penetrates into the inner lining, the front urination tube and the middle and rear urination tube are both located below the gripping handle, the front urination tube is located at the top of the lining, and the middle and rear urination tube is higher than the inner bottom wall of the collection cup.

[0022] Furthermore, a collecting component is arranged at the bottom of the collecting cup, and the collecting component specifically comprises a connecting hole opened at the bottom of the collecting cup, a sealing plate arranged inside the connecting hole, an extending plate arranged at the bottom of the sealing plate, and a spring arranged between the sealing plate and the inner wall of the connecting hole;

[0023] The extension plate extends downward to the opening at the bottom of the communicating hole, and the extension plates are distributed in a ring array around the contour of the sealing plate, and the sample tube is pressed against the bottom of the extension plate.

[0024] Beneficial effects of the present invention:

[0025] 1. By setting up the separation component, when collecting urine, the front urine falls into the lining. After the lining is overflowing, the hanging belt is removed from the hanging column, and the traction is lost. The diaphragm is separated from the inner wall of the collection cup by the impact of urine, and the middle urine that enters subsequently flows into the collection cup from the overflow port and is finally collected into the sample tube. In this way, the diaphragm separates the middle urine and the front urine to avoid mixing of the middle urine and the front urine, thereby ensuring the purity of the middle urine and improving the accuracy of the test results.

[0026] 2. The surface of the buffer zone is provided with an impact zone in the shape of a water droplet. The impact zone is located above the inner lining. The discharged urine impacts the upper part of the impact zone. Affected by the shape of the impact zone, the urine diffuses downward along the inner wall of the impact zone, unloading most of the impact force, reducing the urine that is reduced to the surroundings when impacted, and preventing urine from being stained on the patient's hands.

[0027] 3. By arranging the front urination tube and the middle and rear urination tube, the excess urine in the collection cup and the liner can be discharged, avoiding excessive urine in the front section of the liner and the middle section of the collection cup, which may overflow. The patient can urinate completely, which also reduces the burden on the patient when holding the device, making the patient hold it more steadily. The front urination tube is arranged at a high position of the liner, so that part of the urine is stored in the liner, which lowers the overall center of gravity of the device and further improves the stability of the patient's holding. At the same time, the urine stored in the liner can support the soft diaphragm, avoiding the diaphragm being squeezed into the liner by urine when urine accumulates between the diaphragm and the collection cup.

[0028] 4. By setting up a stabilizing component and using a vacuum pump to draw the inner cavity to a negative pressure state, the diaphragm can be adsorbed on the surface of the collection cup through the adsorption port, making the fit between the diaphragm and the inner wall of the collection cup more stable, thus preventing the diaphragm from being separated from the collection cup in advance during storage and transportation of the equipment, or when impacted by urine, allowing the front urine to enter the collection cup.

[0029] 5. Through the cooperation of the hanging strap and the air bag, the hanging strap provides traction for the diaphragm and provides compression for the air bag, so that the stability of the fit between the diaphragm and the collection cup can be ensured. When using, first remove the hanging column. When the diaphragm needs to be released, just pinch the air bag to open the air hole. This allows one-handed operation, and the operation is simple, avoiding trembling of the patient's holding hand, which may cause urine to spill.

[0030] 6. By setting an elastic plate, after the pores are opened, the elastic plate loses traction and returns to its original shape, becoming vertical. In this way, the elastic plate and the inner wall of the impact zone form a D-shaped opening, which facilitates urine to enter between the diaphragm and the collection cup, and avoids the diaphragm and the inner wall of the collection cup fitting too closely, affecting the collection of midstream urine. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the upper part of the pollution-free sampling device for midstream urine of the present invention;

[0032] Figure 2 This is a schematic diagram of the lower part of the pollution-free sampling device for midstream urine of the present invention;

[0033] Figure 3 This is a disassembly diagram of the present invention;

[0034] Figure 4 This is a schematic diagram of the upper side of the collection cup of the present invention;

[0035] Figure 5 This is a schematic diagram of the upper side of the inner liner of the present invention;

[0036] Figure 6 It is a side schematic diagram of the inner liner of the present invention;

[0037] Figure 7It is a schematic diagram of the separation component of the present invention;

[0038] Figure 8 It is a schematic diagram of the diaphragm of the present invention;

[0039] Fig. 9 A schematic diagram of the grip handle of the present invention;

[0040] Fig.10 A top view of the present invention;

[0041] Fig.11 For the present invention Fig.10 Sectional view at AA;

[0042] Fig.12 For the present invention Fig.11 Enlarged view of point A in the middle;

[0043] Fig.13 For the present invention Fig.11 Enlarged view of point B in the middle;

[0044] Fig.14 For the present invention Fig.11 Enlarged view of center C.

[0045] In the figure:

[0046] 1. Collection cup; 2. Holding handle; 3. Lining; 4. Eaves; 5. Overflow port; 6. Sample tube; 7. Partition assembly; 71. Diaphragm; 72. Hanging strap; 73. Hanging column; 74. Hanging hole; 8. Stabilizing assembly; 81. Inner cavity; 82. Air hole; 83. Adsorption port; 84. Plug hole; 85. Elastic plate; 86. Plug; 87. Mounting slot; 88. Air bag; 9. Urinating assembly; 91. Front urination port; 92. Middle and rear urination port; 93. Front urination tube; 94. Middle and rear urination tube; 10. Collection assembly; 101. Connecting hole; 102. Sealing plate; 103. Extension plate; 104. Spring; 11. Impact zone. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0048] Example 1, reference Figure 1-14, which is the first embodiment of the present invention, provides a midstream urine pollution-free sampling device, including a collection cup 1, a gripping handle 2 arranged at the top of the collection cup 1, an inner lining 3 arranged inside the collection cup 1, an eaves board 4 arranged at the top of the inner lining 3, an overflow port 5 arranged on the surface of the eaves board 4, a sample tube 6 inserted into the bottom of the collection cup 1, and a partition component 7 arranged in the collection cup 1. The partition component 7 specifically includes a diaphragm 71 arranged above the eaves board 4, a hanging belt 72 arranged at the top of the diaphragm 71, a hanging column 73 arranged on the surface of the gripping handle 2, and a hanging hole 74 arranged at the end of the hanging belt 72 away from the diaphragm 71;

[0049] Specifically, the collection cup 1 and the gripping handle 2 are integrally formed. When the collection cup 1 and the gripping handle 2 are formed, two symmetrical parts are processed by injection molding equipment, and then the two parts are spliced ​​together. The lining 3 is located at the center of the collection cup 1, and the top of the eaves 4 extends toward the inner wall of the collection cup 1 and fits therewith. A sealing gasket is provided at the joint between the eaves 4 and the collection cup 1, and the lining 3 and the eaves 4 are integrally formed; the diaphragm 71 fits the collection cup 1 and the eaves 4, and the diaphragm 71 is made of elastic silicone. The diaphragm 71 is a quadrilateral, and except for The remaining three sides outside the top edge are adhered to the collection cup 1 and the lining 3. The hanging strap 72 extends upward along the inner wall of the collection cup 1 and is hooked on the hanging post 73 through the hanging hole 74. The hanging strap 72 and the diaphragm 71 are integrally formed, and the hanging post 73 is fixedly connected to the holding handle 2. The upper opening of the collection cup 1 is set in a "V" shape, and a circular arc-shaped buffer zone is set at the bottom of the "V", and the holding handle 2 is located above the buffer zone; the diaphragm 71 is laid in the impact zone 11, and the top edge of the diaphragm 71 is flush with the top edge of the impact zone 11.

[0050] By setting the partition component 7, when collecting urine, the front urine falls into the liner 3. After the liner 3 is overflowing, the hanging belt 72 is removed from the hanging column 73, and the traction force is lost. The diaphragm 71 is separated from the inner wall of the collection cup 1 by the impact of the urine, and the middle urine that enters subsequently flows into the collection cup 1 from the overflow port 5 and is finally collected in the sample tube 6. In this way, the diaphragm 71 separates the middle urine and the front urine to avoid mixing of the middle urine and the front urine, thereby ensuring the purity of the middle urine and improving the accuracy of the test results.

[0051] Specifically, an impact zone 11 is provided on the surface of the buffer zone. The impact zone 11 is in the shape of a water drop and is located above the lining 3. The discharged urine impacts the top of the impact zone 11. Affected by the shape of the impact zone 11, the urine diffuses downward along the inner wall of the impact zone 11, thereby removing most of the impact force and reducing the urine that is reduced to the surroundings when impacted, thereby preventing urine from getting on the patient's hands.

[0052] A urination assembly 9 is disposed on the outside of the collection cup 1. The urination assembly 9 specifically includes a front urination opening 91 and a middle and rear urination opening 92 provided on the surface of the collection cup 1, and a front urination tube 93 and a middle and rear urination tube 94 respectively inserted into the front urination opening 91 and the middle and rear urination opening 92.

[0053] Specifically, the front urination opening 91 penetrates into the interior of the lining 3, the front urination tube 93 and the middle and rear urination tube 94 are both located below the gripping handle 2, the front urination tube 93 and the middle and rear urination tube 94 are threadedly connected to the front urination opening 91 and the middle and rear urination opening 92 respectively, the front urination tube 93 is located at the top of the lining 3, and the middle and rear urination tube 94 is higher than the inner bottom wall of the collection cup 1.

[0054] By providing the front urine drainage tube 93 and the middle and rear urine drainage tube 94, the excess urine in the collection cup 1 and the inner liner 3 can be discharged, avoiding the situation where there is too much front urine in the inner liner 3 and the middle urine in the collection cup 1 overflowing, and also reducing the burden on the patient when holding the device, making the patient hold it more steadily. The front urine drainage tube 93 is provided at a high position of the inner liner 3, so that part of the urine is stored in the inner liner 3, thereby lowering the overall center of gravity of the device and further improving the stability of the patient's holding. At the same time, the urine stored in the inner liner 3 can support the soft diaphragm 71, avoiding the diaphragm 71 being squeezed into the inner liner 3 by urine when urine is stored between the diaphragm 71 and the collection cup 1.

[0055] The bottom of the collection cup 1 is arranged on the collection component 10, and the collection component 10 specifically includes a communication hole 101 opened at the bottom of the collection cup 1, a sealing plate 102 arranged inside the communication hole 101, an extension plate 103 arranged at the bottom of the sealing plate 102, and a spring 104 arranged between the sealing plate 102 and the inner wall of the communication hole 101;

[0056] Specifically, the extension plate 103 is fixedly connected to the sealing plate 102 , and extends downward to the opening at the bottom of the connecting hole 101 . The extension plates 103 are distributed in a circular array around the contour of the sealing plate 102 , and the sample tube 6 is pressed against the bottom of the extension plate 103 .

[0057] Example 2, reference Figure 1-14 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a stabilizing component 8 is provided between the collection cup 1, the gripping handle 2 and the diaphragm 71. The stabilizing component 8 specifically includes an inner cavity 81 and an air hole 82 provided inside the wall of the collection cup 1, a suction port 83 provided on the inner wall of the collection cup 1, a mounting groove 87 provided on the surface of the gripping handle 2, and an air bag 88 provided inside the mounting groove 87;

[0058] Specifically, one end of the air hole 82 is connected to the inner cavity 81, and the other end passes through the end of the holding handle 2 away from the collection cup 1. The suction port 83 is connected to the inner cavity 81. The suction port 83 is distributed in the impact area 11 and extends to both sides, and is evenly laid in the coverage area of ​​the diaphragm 71. When the equipment is used, it needs to be coordinated with a vacuum pump and a suction pipe; the installation groove 87 is connected to the air hole 82, and the hanging belt 72 passes through the surface of the air bag 88 to press the air bag 88 into the installation groove 87.

[0059] By providing a stabilizing component 8 and utilizing a vacuum pump to draw the inner cavity 81 to a negative pressure state, the diaphragm 71 can be adsorbed onto the surface of the collection cup 1 through the adsorption port 83, thereby making the fitting state between the diaphragm 71 and the inner wall of the collection cup 1 more stable, thereby preventing the diaphragm 71 from being separated from the collection cup 1 in advance during storage and transportation of the equipment, or when impacted by urine, thereby allowing the forepartum urine to enter the collection cup 1.

[0060] Through the cooperation of the hanging strap 72 and the air bag 88, the hanging strap 72 provides traction for the diaphragm 71 and provides compression for the air bag 88, so that the stability of the fit between the diaphragm 71 and the collection cup 1 can be ensured. When in use, the hanging column 73 is first removed. When the diaphragm 71 needs to be released, it is only necessary to pinch the air bag 88 to open the air hole 82. In this way, one-handed operation can be achieved, and the operation is simple, which avoids trembling of the patient's holding hand and causes urine to spill.

[0061] The stabilizing assembly 8 further includes a plug hole 84 opened on the inner wall of the collection cup 1, an elastic plate 85 disposed on the top edge of the diaphragm 71, and a plug 86 disposed on the surface of the elastic plate 85;

[0062] Specifically, the socket 84 is connected to the inner cavity 81, the plug 86 passes through the inner cavity 81 and is inserted into the socket 84, a sealing ring is set in the part where the plug 86 enters the socket 84, the elastic plate 85 is in contact with the inner wall of the impact area 11, the elastic plate 85 is adhered to the diaphragm 71, and the elastic plate 85 is straight when not subject to force.

[0063] By setting the elastic plate 85, after the air hole 82 is opened, the elastic plate 85 loses traction and returns to its original shape, becoming vertical. In this way, the elastic plate 85 and the inner wall of the impact zone 11 form a D-shaped opening, which facilitates urine to enter between the diaphragm 71 and the collection cup 1, and avoids the diaphragm 71 and the inner wall of the collection cup 1 from fitting too closely, which affects the collection of mid-stream urine.

[0064] Based on Examples 1-2, the working principle of the midstream urine pollution-free sampling device of the present invention is as follows:

[0065] During installation, the spring 104 is sleeved on the outside of the extension plate 103, and one end of the spring 104 is glued to the surface of the sealing plate 102. The extension plate 103 is then inserted into the connecting hole 101 from the inside of the collection cup 1, and the other end of the spring 104 is glued to the connecting hole 101.

[0066] Glue is applied to the top edge of the diaphragm 71, and then the elastic plate 85 is adhered to the surface of the diaphragm 71, and the plug 86 penetrates the diaphragm 71; the liner 3 is inserted into the collection cup 1, and the front urination opening 91 and the middle and rear urination opening 92 are facing the direction of the gripping handle 2. After the liner 3 is placed stably, the diaphragm 71 is laid into the collection cup 1, and the plug 86 is first inserted into the insertion hole 84, and then the hanging belt 72 is buckled on the hanging column 73 through the hanging hole 74, and then the diaphragm 71 is smoothed along the inner wall of the collection cup 1 and the surface of the eaves board 4 to make it fit tightly.

[0067] Insert the suction pipe into the air hole 82. After the suction pipe passes over the mounting groove 87, turn on the vacuum pump, and the air in the air hole 82 and the inner cavity 81 is sucked out to form a negative pressure environment. The plug 86 is adsorbed in the plug hole 84, and the adsorption port 83 in the diaphragm 71 is adsorbed on the inner wall of the collection cup 1. After the diaphragm 71 is fixed, remove the hanging belt 72 from the hanging column 73, and then insert the air bag 88 into the mounting groove 87. Then, the hanging belt 72 is buckled on the hanging column 73 again. The hanging belt 72 presses the air bag 88 into the mounting groove 87. Press the air bag 88 on the outside of the hanging belt 72 with your fingers, and slowly fix the suction to draw out the air hole 82. After the suction pipe is withdrawn to the other side of the air bag 88, the air bag 88 blocks the air hole 82. After the suction pipe is completely pulled out, glue is applied to the other three sides of the diaphragm 71 except the top edge to fix it to the collection cup 1 and the eaves board 4.

[0068] When in use, the device is removed from the package, and then the front urination tube 93 and the middle and rear urination tube 94 are respectively inserted into the front urination port 91 and the middle and rear urination port 92, and the sample tube 6 is inserted into the connecting hole 101. The sample tube 6 pushes the sealing plate 102 upward and away from the connecting hole 101 through the extension plate 103, so that the sample tube 6 is connected with the collection cup 1.

[0069] The hanging strap 72 is peeled off from the hanging column 73, and then the patient holds the holding handle 2 with one hand, presses the thumb on the surface of the air bag 88, and brings the collection cup 1 close to the private parts to discharge urine. The urine enters and impacts the impact area 11 on the inner wall of the collection cup 1, and then flows into the lining 3. The urine in the lining 3 continues to increase. When the urine reaches the front urination opening 91, the urine is discharged from the front urination tube 93.

[0070] After the front section urination tube 93 starts to discharge urine, the patient uses the thumb to pinch the air bag 88. After the air bag 88 ruptures, the air hole 82 is opened, the inner cavity 81 returns to the normal pressure state, and no longer produces adsorption force on the diaphragm 71 and the plug 86. The elastic plate 85 rebounds and changes from a bent state to a straight state, so that a "D"-shaped opening appears between the elastic plate 85 and the inside of the collection cup 1. Urine flows in from here, and the diaphragm 71 is stretched open by the urine. The urine flows to the bottom of the collection cup 1 through the overflow port 5, and then enters the sample tube 6 through the connecting hole 101. As the urine continues to enter, the excess urine at the bottom of the collection cup 1 is discharged from the middle and rear section urination tube 94. After urination is completed, the sample tube 6 is removed from the collection cup 1 and sealed.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A midstream urine non-contamination sampling device, comprising a collection cup (1), a gripping handle (2) disposed at the top of the collection cup (1), an inner lining (3) disposed inside the collection cup (1), an eaves plate (4) disposed at the top of the inner lining (3), an overflow port (5) disposed on the surface of the eaves plate (4), a sample tube (6) inserted into the bottom of the collection cup (1), characterized in that: It also includes a partition assembly (7) disposed in the collection cup (1), the partition assembly (7) specifically comprising a diaphragm (71) disposed above the eaves plate (4), a hanging strap (72) disposed on the top of the diaphragm (71), a hanging column (73) disposed on the surface of the gripping handle (2), and a hanging hole (74) disposed at an end of the hanging strap (72) away from the diaphragm (71); The inner lining (3) is located at the center of the collection cup (1), the top of the eaves (4) extends toward the inner wall of the collection cup (1) and fits therewith, the diaphragm (71) fits the collection cup (1) and the eaves (4), the diaphragm (71) is made of elastic silicone, the diaphragm (71) is a quadrilateral, and the other three sides except the top side are adhered to the collection cup (1) and the inner lining (3), the hanging belt (72) extends upward along the inner wall of the collection cup (1), and is hung on the hanging column (73) through the hanging hole (74); An impact zone (11) is provided on the surface of the buffer zone inside the collection cup (1), the impact zone (11) is in the shape of a water drop, and the impact zone (11) is located above the inner lining (3); A stabilizing component (8) is disposed between the collection cup (1), the gripping handle (2) and the diaphragm (71), and the stabilizing component (8) specifically comprises an inner cavity (81) and an air hole (82) provided inside the wall of the collection cup (1), and an adsorption port (83) provided on the inner wall of the collection cup (1); One end of the air hole (82) is in communication with the inner cavity (81), and the other end passes through the end of the gripping handle (2) away from the collection cup (1). The adsorption port (83) is in communication with the inner cavity (81). The adsorption port (83) is distributed in the impact zone (11) and extends to both sides and is evenly laid in the coverage area of ​​the diaphragm (71). The stabilizing component (8) further comprises a plug hole (84) formed on the inner wall of the collection cup (1), an elastic plate (85) disposed on the top edge of the diaphragm (71), and a plug (86) disposed on the surface of the elastic plate (85); The plug hole (84) is in communication with the inner cavity (81), the plug (86) passes through the inner cavity (81) and is inserted into the plug hole (84), and the elastic plate (85) is in contact with the inner wall of the impact zone (11); The stabilizing component (8) further comprises a mounting groove (87) formed on the surface of the gripping handle (2), and an air bag (88) disposed inside the mounting groove (87); The mounting groove (87) is communicated with the air hole (82), and the hanging belt (72) passes through the surface of the air bag (88) to press the air bag (88) into the mounting groove (87).

2. The pollution-free midstream urine sampling device according to claim 1, characterized in that: The upper opening of the collection cup (1) is arranged in a "V" shape, and an arc-shaped buffer zone is arranged at the bottom of the "V", and the holding handle (2) is located above the buffer zone.

3. The pollution-free sampling device for midstream urine according to claim 2, characterized in that: The diaphragm (71) is laid in the impact zone (11), and the top edge of the diaphragm (71) is flush with the top edge of the impact zone (11).

4. The pollution-free sampling device for midstream urine according to claim 3, characterized in that: The outer side of the collection cup (1) is provided with a urination assembly (9), which specifically comprises a front urination opening (91) and a middle-rear urination opening (92) provided on the surface of the collection cup (1), and a front urination tube (93) and a middle-rear urination tube (94) respectively plugged into the front urination opening (91) and the middle-rear urination opening (92); The front urination opening (91) penetrates into the interior of the inner lining (3); the front urination tube (93) and the middle and rear urination tube (94) are both located below the gripping handle (2); the front urination tube (93) is located at the top of the inner lining (3), and the middle and rear urination tube (94) is higher than the inner bottom wall of the collection cup (1).

5. The pollution-free midstream urine sampling device according to claim 4, characterized in that: The bottom of the collection cup (1) is arranged on the collection component (10), and the collection component (10) specifically comprises a communication hole (101) opened at the bottom of the collection cup (1), a sealing plate (102) arranged inside the communication hole (101), an extension plate (103) arranged at the bottom of the sealing plate (102), and a spring (104) arranged between the sealing plate (102) and the inner wall of the communication hole (101); The extension plate (103) extends downward to the opening at the bottom of the communicating hole (101), and the extension plates (103) are distributed in a ring array around the contour of the sealing plate (102), and the sample tube (6) is pressed against the bottom of the extension plate (103).

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