CN111329529B - A urine collection device for urine testing that can avoid contamination - Google Patents

Abstract

The invention relates to the field of urological clinic detection, in particular to a urine sampling device capable of avoiding pollution for urinalysis. The urine sample splash-proof device comprises a funnel, wherein a sample pipe and an overflow port are arranged at the lower end of the funnel, the sample pipe is detachably connected to the funnel and used for receiving urine in the funnel, redundant urine in the funnel is discharged after the sample pipe is filled with the urine through the overflow port, and the splash-proof mechanism can reduce the liquid level of a urine sample in the sample pipe in the process that the sample pipe is detached from the funnel, so that the pollution caused by the splashing of the urine sample easily caused by the filling of the urine sample in the sample pipe is avoided. The invention can avoid the pollution caused by touching the urine by the hands of the patient in the urine sample collection process and improve the urine sampling success rate.

Description

A urine collection device for urine testing that can avoid contamination

technical field

The invention relates to the field of urology outpatient testing, in particular to a urine collection device for urine testing that can avoid pollution.

Background technique

Urine routine is one of the "three routines" items of medical examination. Many kidney diseases can appear proteinuria or formed elements in the urine sediment in the early stage. It is also of great reference value for the diagnosis of some systemic diseases and diseases that affect urine changes in other organs of the body, such as diabetes, blood diseases, liver and gallbladder diseases, and epidemic hemorrhagic fever. At the same time, the urine test can also reflect the treatment effect and prognosis of some diseases, and the corresponding symptoms can be judged through this test.

In the prior art, urine samples for testing are usually collected in a sample tube by the patient himself. During the collection of urine samples, due to the small diameter of the sample tube, the patient cannot control the precise urination into the sample tube. Therefore, urine is usually discharged into a disposable plastic cup first, and then the urine sample in the plastic cup is poured into the sample tube. During the process of pouring urine from the plastic cup into the sample tube, the patient, especially the elderly patient with poor coordination, can easily spill the urine on the patient's hand holding the sample tube. Enhance the patient's discomfort and disgust; on the other hand, if the amount of urine spilled in the plastic cup is large, the amount of urine transferred to the sample tube is small, and the test requirements cannot be met, and the patient needs to wait for the next time. Urine collection takes a lot of time.

SUMMARY OF THE INVENTION

The invention aims to provide a urine collection device for urine test that can avoid pollution, avoid the pollution caused by the patient's hand touching the urine during the urine sample collection process, and improve the success rate of urine sampling.

In order to solve the above technical problems, the technical solution adopted in the present invention is: a urine collection device for urine testing that can avoid pollution, comprising a funnel, a sample tube and an overflow port are arranged at the lower end of the funnel, and the sample tube is detachably connected to the The funnel is used to receive the urine in the funnel. The overflow port is used to discharge the excess urine in the funnel after filling the sample tube. It also includes an anti-splash mechanism. The anti-splash mechanism can be removed from the funnel when the sample tube is removed. During the process, the liquid level of the urine sample in the sample tube is lowered, so as to avoid the urine sample splashing pollution that is easily generated due to the full filling of the urine sample in the sample tube.

Preferably, it also includes a base block with a cavity, the small end of the funnel is connected to the upper edge of the base block, the sample tube is detachably connected to the lower edge of the base block, the overflow port is opened on the side of the base block, and the funnel is , the sample tube and the overflow port are all communicated with the cavity.

Preferably, the anti-splash mechanism is the sample tube itself, the sample tube is made of plastic material, a pleated section is arranged in the middle of the sample tube, and the sample tube is installed on the base block in the compressed state of the pleated section, which can be The volume of the sample tube is increased by stretching the pleated section, so that the liquid level of the urine sample in the sample tube is relatively lowered.

Preferably, the anti-splash mechanism includes the sample tube itself and an extension section arranged in the cavity, and the upper end of the sample tube can be butted with the extension section to increase the volume of the sample tube, so that the liquid level of the urine sample in the sample tube can be increased. relative decline.

Preferably, the extension section is made of plastic material and is concentrically distributed directly above the sample tube, the outer circumference of the lower part of the extension section is provided with an outer thread that can match the inner thread at the inner circumference of the top of the sample tube, and the upper edge of the extension section is provided with external threads. The welding point is fixed with the inner wall of the cavity, and a limit ring is arranged on the extension section at the upper end of the external thread. The limit ring can cooperate with the upper end of the sample tube to lock the sample tube and the extension section.

Preferably, a threaded hole for fitting the sample tube is provided at the lower edge of the base block.

Preferably, the anti-splash mechanism includes a first baffle plate arranged in the sample tube and a second baffle plate arranged in the cavity, the first baffle plate divides the inner cavity of the sample tube into a perfusion cavity and an overflow cavity, the first baffle plate The upper edge of the baffle and the lower edge of the second baffle are in close contact so that the first baffle and the second baffle form a baffle, and the baffle makes the urine in the cavity flow toward the filling cavity and the overflow port. And isolate the urine in the cavity from flowing into the overflow cavity, in the process of removing the sample tube from the base block, the urine in the upper part of the perfusion cavity can be made to flow between the upper edge of the first partition and the lower edge of the second partition. The gap created between them flows into the overflow chamber.

Preferably, an inverted U-shaped pipe is arranged through the second baffle, and the height of the end of the U-shaped pipe in the perfusion cavity is higher than the height of the end of the U-shaped pipe in the overflow cavity. The corresponding end of the U-shaped pipe is matched with a head, and the head is provided with small holes for air circulation between the U-shaped pipe and the overflow cavity.

Preferably, a straight hole for inserting and fitting the sample tube in an interference manner is arranged on the lower edge of the base block, and a guide for sliding with the guide protrusion fixed on the upper end of the sample tube is arranged on the hole wall of the straight hole. The guide groove is S-shaped.

Preferably, the funnel is made of foldable paper or plastic, the lower end of the funnel is bonded and fixed on the threaded joint, and the threaded joint is fitted in the threaded hole opened on the upper edge of the base block.

beneficial effect

In the present invention, there is a funnel, and the patient can directly discharge urine into the sample tube through the big end of the funnel, avoiding the operation of secondary urine transfer through other props, thereby avoiding the urine caused by the secondary transfer process. Contamination from spills and waste of urine samples. It also has an overflow port, and the excess urine can be discharged from the overflow port after filling the sample tube, so that the patient can usually urinate during the urine sample collection process, and the sample tube can be split after the urination is completely completed. It is suitable for patients with insufficient urination control.

Since the sample tube filled with urine sample is very easy to be splashed and polluted during the process of splitting and sending for inspection, the present invention also has an anti-splashing mechanism, and the anti-splashing mechanism is in the process of removing the sample tube from the funnel. Lower the liquid level of the urine sample in the sample tube, so that the liquid level of the urine sample is lower than the distance from one end of the mouth of the sample tube, so as to avoid the urine sample splashing pollution easily caused by the full filling of the urine sample in the sample tube. .

Description of drawings

1 is a schematic structural diagram of Embodiment 1 of the present invention;

Fig. 2 is the state schematic diagram under the disassembled state of the sample tube in Fig. 1;

3 is a schematic structural diagram of Embodiment 2 of the present invention;

Fig. 4 is the partial enlarged schematic diagram of A part in Fig. 3;

FIG. 5 is a schematic diagram of the state after the sample tube in FIG. 4 is moved up to the docking with the extension section;

FIG. 6 is a schematic view of the state after the sample tube in FIG. 5 is taken out from the cavity of the base block;

7 is a schematic structural diagram of Embodiment 3 of the present invention;

FIG. 8 is a schematic view of the state after the sample tube in FIG. 7 is taken out from the cavity of the base block;

9 is a schematic structural diagram of Embodiment 4 of the present invention;

Fig. 10 is a schematic diagram of the intermediate state of the sample tube in Fig. 9 being taken out from the cavity of the base block;

11 is a schematic view of the end of the U-shaped tube in FIG. 7 located in the overflow chamber of the sample tube;

12 is a schematic diagram of the fitting installation of the sample tube and the base block in Embodiment 4 of the present invention;

Labels in the figure: 1, funnel, 2, threaded joint, 3, base block, 4, cavity, 5, overflow port, 6, pleated section, 7, sample tube, 701, perfusion cavity, 702, overflow cavity , 8, extension, 9, welding point, 10, limit ring, 11, external thread, 12, urination table, 13, second partition, 14, first partition, 15, U-shaped pipe, 16, seal Head, 17, Small hole, 18, Guide groove, 19, Guide protrusion.

Detailed ways

A urine collection device for urine testing that can avoid contamination of the present invention includes a base block 3 having a cavity 4 . The shape of the base block 3 is a rectangle or a round cake, a funnel 1 is connected above the base block 3, a detachable sampling pipe is connected to the lower part of the base block 3, and an overflow port 5 is arranged on the side of the base block 3 . During the urine sample collection process, the patient can directly urinate to the big end of the funnel 1 , and the urine in the funnel 1 fills the sample tube 7 and is discharged from the overflow port 5 . An extension tube can be connected to the overflow port 5 to facilitate the discharge of overflowed urine to the toilet. The funnel 1 is made of foldable paper or plastic to reduce the volume of the present invention and facilitate portability. The lower end of the funnel 1 is bonded and fixed on the threaded joint 2 , and the threaded joint 2 is fitted in the threaded hole opened on the upper edge of the base block 3 . In the application process, after the patient removes the present invention from the packaging bag, unfolds the funnel 1 to urinate toward the big end of the funnel 1 to collect urine samples. The overflow port 5 is flush with the lower edge of the cavity 4, which ensures the smooth discharge of urine in the cavity 4 and avoids the accumulation of urine in the cavity 4, and the accumulated urine is removed from the sample after the sample tube 7 is removed. Tube 7 is leaking.

The present invention also includes an anti-splash mechanism, which can lower the liquid level of the urine sample in the sample tube 7 during the process of removing the sample tube 7 from the funnel 1, so as to avoid the urine in the sample tube 7 The urine sample is easily contaminated by the overflow of the sample. The anti-splash mechanism enables the patient to always keep the liquid level in the sample tube 7 lower than the mouth of the sample tube 7 during the process of removing the sample tube 7 and sending it for inspection, so as to prevent the urine sample from being damaged by vibration or shaking. Spills from the sample tube 7 cause contamination.

The above-mentioned anti-splash mechanism in the present invention can be realized in various ways, and the following is a complete description of it through four embodiments:

Example 1:

The splash-proof mechanism in this embodiment is the sample tube 7 itself. The sample tube 7 is made of plastic material, and the upper end of the sample tube 7 is fitted in a threaded hole opened at the bottom of the base block 3 through a threaded structure. In the middle of the sample tube 7 is provided a corrugated section 6 which is similar to the elbow part in the drinking straw. The corrugated section 6 can reduce the volume of the sample tube 7 by compression, or expand the volume of the sample tube 7 by stretching. As shown in FIG. 1 , the sample tube 7 in this embodiment is installed on the base block 3 when the corrugated section 6 is in a compressed state. In FIG. 1 , the sample tube 7 is filled with urine sample, and the excess urine has been discharged through the overflow port 5 . At this time, the lower end of the sample tube 7 can be held by hand and pulled downward, so that the pleated section 6 is unfolded and reaches the state shown in FIG. 2 . As the volume of the sample tube 7 increases, the urine sample liquid level originally flush with the mouth of the sample tube 7 is lowered to a certain distance below the mouth of the sample tube 7 . After the urine sample liquid level drops relatively, the sample tube 7 can be rotated until the sample tube 7 is unscrewed from the base block 3 .

In order to avoid the vibration generated by the pulling of the pleated section 6 causing the urine sample to be spilled from the filled sample tube 7 and stained on the outer wall of the sample tube 7, the base block 3 in this embodiment is located in the threaded hole during the airborne drop. An annular protrusion is provided at the upper end to form the urination table 12 . The outer edge of the urination table 12 is arc-shaped and the initial installation position of the upper edge of the sample tube 7 is flush with the upper edge of the urination table 12 . Through the above structure, the urine sample is collected at the bottom of the cavity 4 through the urination table 12 after the shock generated by the pull-down pleated section 6 causes the urine sample to be spilled, and the sample tube 7 will not be released from the threaded hole after the sample tube 7 is unscrewed from the threaded hole. dripping.

Further, in order to completely prevent the urine splashed on the bottom of the cavity 4 from dripping from the threaded holes, a urinary catheter inclined towards the overflow port 5 can be provided at the bottom of the cavity 4, so that the urine is splashed from the sample tube 7. The spilled urine flows into the overflow port 5 through the catheter and is discharged.

Example 2:

The sample tube 7 in this embodiment is also installed in the threaded hole in the lower part of the base block 3 in a threaded manner. As shown in FIGS. 3 and 4 , the anti-splash mechanism includes the sample tube 7 itself and an extended section 8 disposed in the cavity 4 and located directly above the sample tube 7 .

The extension section 8 is made of plastic material and is distributed concentrically on the sample tube 7. The sample tube 7 is rotated upward to complete the docking between the sample tube 7 and the extension section 8, thereby indirectly increasing the volume of the sample tube 7, so that the The liquid level originally flush with the mouth of the sample tube 7 is lower than the distance from one end of the upper edge of the extension section 8 after docking, so as to achieve a splash-proof tool for removing the sample tube 7 and sending it for inspection.

The outer periphery of the lower part of the extension section 8 is provided with an outer thread 11 that can be matched with the inner thread at the inner peripheral position of the top of the sample tube 7, and the lower part of the extension section 8 is a tapered NPT thread, which is convenient to realize the inner thread of the top of the sample tube 7. Circumferential internal thread butt. The upper edge of the extended section 8 is fixed to the inner wall of the cavity 4 by a welding spot 9 formed by ultrasonic spot welding, and the number of the welding spots 9 is two and distributed symmetrically. A limit ring 10 is provided on the extension section 8 at the upper end of the external thread 11 to cooperate with the upper end of the sample tube 7 .

FIG. 3 and FIG. 4 show the state in which the sample tube 7 of the present embodiment is fully filled and the excess urine has been discharged from the overflow port 5 . At this time, the sample tube 7 is rotated upward, so that the upper end of the sample tube 7 and the lower end of the extension section 8 are connected with each other through threads, and the state shown in FIG. 5 is achieved. In FIG. 5 , the liquid level of the urine sample has been lower than the upper edge of the integral container composed of the sample tube 7 and the extension section 8 by a certain distance, and the upper edge of the sample tube 7 is in close contact with the lower edge of the limit ring 10 . As the sample tube 7 continues to be rotated upwards, the integral torque formed by the sample tube 7 and the extension 8 is exerted on the two welding points 9 . Both solder joints 9 are slightly welded, so that the patient can twist the solder joints 9 off when a small torque is applied to the sample tube 7 . After twisting and breaking the welding point 9, the sample tube 7 is reversely rotated, so that the sample tube 7 is completely released from the threaded hole, and the state shown in FIG. 6 is reached.

In this embodiment, the urine spilled due to shaking or vibration during the process of rotating the sample tube 7 to make it dock with the extension section 8 is the same as in Embodiment 1. Cooperate with the introduction overflow port 5 to discharge. After the sample tube 7 is unscrewed, it will not drip out of the threaded hole due to the accumulation of urine in the cavity 4 .

Example 3:

In this embodiment, the lower edge of the base block 3 is provided with a straight hole for inserting and fitting the sample tube 7 in an interference manner. As shown in FIG. 7 , the anti-splash mechanism in this embodiment includes a first partition 14 arranged in the sample tube 7 and a second partition 13 arranged in the cavity 4 . The first partition 14 divides the inner cavity of the sample tube 7 into a perfusion cavity 701 on the right and an overflow cavity 702 on the left. The perfusion chamber 701 is located below the funnel 1 and the overflow chamber 702 is offset from the funnel 1 . The upper edge of the first partition 14 and the lower edge of the second partition 13 are in close contact so that the first partition 14 and the second partition 13 form a flow guide. During the sampling process, the baffle plate flows the urine in the cavity 4 toward the filling cavity 701 and the overflow port 5 and prevents the urine in the cavity 4 from flowing into the overflow cavity 702 .

FIG. 7 shows a state in which the filling cavity 701 is fully filled in this embodiment, and the excess urine has been discharged from the cavity 4 through the overflow port 5 . At this time, the patient pulls the sample tube 7 downward, overcoming the frictional force of the straight hole on the sample tube 7 to pull the sample tube 7 out of the base block 3, the upper edge of the first separator 14 and the second separator 13 A gap is created between the lower edges. The filled urine sample in the perfusion chamber 701 is automatically entered into the overflow chamber 702 at the gap, and reaches the state shown in FIG.

In this embodiment, the discharge method of the spilled urine produced by pulling out the sample tube 7 is the same as that in Embodiment 1 and will not be repeated. At the same time, in order to avoid the large-scale urine splashing caused by the rapid pull-out of the sample tube 7 because the urine in the perfusion cavity 701 is too late to be discharged to the overflow cavity 702 because the sample tube 7 is reported too fast, this implementation For example, as shown in FIG. 12, two symmetrical guide protrusions 19 are arranged on the outer wall of the top of the sample tube 7, and two guide grooves 18 are symmetrically arranged on the hole wall of the straight hole. The guide grooves 18 It is S-shaped, including a vertical upper section, a middle transverse section and a vertical lower section, and the upper end of the vertical upper section is closed, which plays the role of positioning the sample tube 7 with the installation. The lower end of the vertical lower section is open, so that the sample tube 7 can be smoothly pulled out from the straight hole. Through the above arrangement of the guide protrusions 19 and the guide grooves 18, the extraction process of the sample tube 7 is divided into three stages: the first stage, the guide protrusion 19 slides down the vertical upper section, the first partition 14 and the second The partitions 13 are separated from each other, and the urine sample begins to flow into the overflow chamber 702 from the perfusion chamber 701; in the second stage, the guide column rotates horizontally along the middle transverse section, and the urine sample in the perfusion chamber 701 completely flows into the overflow chamber 702 during the rotation; In the third stage, the guide column slides down the vertical lower section to remove the sample tube 7 from the base block 3 .

Example 4:

The difference between this embodiment and Embodiment 3 is that a U-shaped tube 15 is provided on the second partition plate 13, and more urine samples in the perfusion cavity 701 can be sucked into the overflow cavity 702 through the U-shaped tube 15, so that the The liquid level of the urine sample in the sample tube 7 has a larger distance from the nozzle of the sample tube 7, so as to achieve a better anti-splash effect.

As shown in FIG. 9 , the U-shaped tube 15 is in an upside-down state, and the middle portion of the U-shaped tube 15 is fixed in the hole formed on the second partition plate 13 and sealed by sealant. The height of the end of the U-shaped pipe 15 in the perfusion chamber 701 is higher than that of the end of the U-shaped pipe 15 in the overflow chamber 702 , as shown in FIG. The matching head 16 is provided with a small hole 17 for air circulation between the U-shaped pipe 15 and the overflow cavity 702 .

FIG. 9 shows the state in which the filling cavity 701 is full and the excess urine has been discharged from the cavity 4 through the overflow port 5 . At this time, the urine sample liquid level does not pass the upper edge of the U-shaped tube 15, and under the action of the small holes 17 on the head 16, the urine is filled with the U-shaped tube 15 from the left end of the U-shaped tube 15 from the perfusion chamber 701. into the overflow cavity 702 through the tiny hole 17 . At this time, when the sample tube 7 is pulled down, the urine in the perfusion chamber 701 enters the overflow chamber 702 through the gap between the first baffle 14 and the second baffle 13, and on the other hand, because of the U-shaped tube 15 The left end of the U-shaped tube 15 is separated from the sealing head 16, and the urine in the U-shaped tube 15 is discharged into the overflow chamber 702 in large quantities, so that a negative pressure is generated in the U-shaped tube 15, resulting in the urine sample in the perfusion chamber 701 under the action of atmospheric pressure. The left end of the U-shaped tube 15 continuously inhales the urine sample in the perfusion chamber 701, bypasses the upper edge of the first partition 14, and continues to discharge into the overflow chamber 702 through the right end of the U-shaped tube 15, and finally reaches as shown in FIG. 10 . status. The urine sample liquid level in the perfusion chamber 701 and the overflow chamber 702 is substantially equal, and compared with Example 3, the urine sample liquid level in the perfusion chamber 701 is significantly lower than the mouth of the sample tube 7 .

In order to prevent the urine sample from being sucked into the overflow chamber 702 by a large amount through the U-shaped tube 15 and the small hole 17 before pulling the sample tube 7 downward, the urine sample liquid level in the overflow chamber 702 is too high, so that the urine sample is too high in the downward direction. When the sample tube 7 is pulled out, the urine sample in the perfusion chamber 701 can no longer be sucked into the overflow chamber 702 . In this embodiment, the number of small holes 17 is 1-2, the diameter of which is 0.2-0.6mm, and only the air communication between the U-shaped pipe 15 and the overflow chamber 702 is realized, so that the urine sample liquid level of the perfusion chamber 701 is realized. After passing the upper edge of the U-shaped pipe 15 , it can enter the U-shaped pipe 15 under the principle of the communicating device.

This embodiment also has the same guide grooves 18 and guide protrusions 19 as those of the third embodiment. By the rotation process of the guide protrusion 19 in the middle transverse section, the urine sample is completed from the perfusion chamber 701 into the overflow chamber 702 through the gap between the first partition 14 and the second partition 13 and the U-shaped tube 15 .

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A urine collection device for urine testing that can avoid pollution, characterized in that it comprises a funnel (1), and a sample tube (7) and an overflow port (5) are provided at the lower end of the funnel (1). (7) Removably connected to the funnel (1) and used to receive the urine in the funnel (1), and the overflow port (5) is used for the excess urine in the funnel (1) to be filled with the sample tube (7). Drainage also includes an anti-splash mechanism, which can lower the liquid level of the urine sample in the sample tube (7) during the process of removing the sample tube (7) from the funnel (1), thereby avoiding The urine sample in the sample tube (7) is filled with the urine sample, which is easy to cause the urine sample to be splashed and polluted; It also includes a base block (3) with a cavity (4), the small end of the funnel (1) is connected to the upper edge of the base block (3), and the sample tube (7) is detachably connected to the lower part of the base block (3). Along, the overflow port (5) is opened on the side of the base block (3), and the funnel (1), the sample tube (7) and the overflow port (5) are all communicated with the cavity (4); The splash-proof mechanism includes a first baffle (14) arranged in the sample tube (7) and a second baffle (13) arranged in the cavity (4), the first baffle (14) separating the sample The inner cavity of the tube (7) is divided into a perfusion cavity (701) and an overflow cavity (702), and the upper edge of the first partition (14) and the lower edge of the second partition (13) are in close contact to make the first partition (14) and the second partition plate (13) form a baffle plate, the baffle plate flows the urine in the cavity (4) towards the perfusion cavity (701) and the overflow port (5) and isolates the cavity (4) ) flows into the overflow chamber (702), and during the process of removing the sample tube (7) from the base block (3), the urine in the upper part of the perfusion chamber (701) can be removed from the first partition (701). 14) The gap created between the upper edge and the lower edge of the second partition plate (13) flows into the overflow chamber (702). 2. A urine collection device for urine testing that can avoid contamination according to claim 1, characterized in that: the splash-proof mechanism is the sample tube (7) itself, and the sample tube (7) is made of plastic material, A pleated section (6) is provided in the middle of the sample tube (7), and the sample tube (7) is installed on the base block (3) when the pleated section (6) is in a compressed state, and can be stretched through the pleated section (6). ) increases the volume of the sample tube (7), so that the liquid level of the urine sample in the sample tube (7) is relatively lowered. 3 . The urine collection device for urine testing that can avoid contamination according to claim 1 , characterized in that: a threaded hole for fitting the sample tube ( 7 ) is provided at the lower edge of the base block ( 3 ). 4 . 4. A urine collection device for urine testing that can avoid contamination according to claim 1, characterized in that: an inverted U-shaped tube (15) is provided through the second partition (13), and the U-shaped tube ( 15) The height of the end located in the perfusion cavity (701) is higher than the height of the end located in the overflow cavity (702), and the corresponding end of the U-shaped pipe (15) is provided in the overflow cavity (702) The matching head (16) is provided with a small hole (17) for air circulation between the U-shaped pipe (15) and the overflow cavity (702). 5 . The urine collection device for urine testing that can avoid contamination according to claim 1 , characterized in that: the lower edge of the base block ( 3 ) is provided with a sample tube ( 7 ) that is inserted and fitted in an interference manner. 6 . A straight hole, the hole wall of the straight hole is provided with a guide groove (18) for the guide protrusion (19) fixed on the upper end of the sample tube (7) to cooperate and slide, and the guide groove (18) is S-shaped. 6. A urine collection device for urine testing that can avoid pollution according to claim 1, characterized in that: the funnel (1) is made of foldable paper or plastic, and the lower end of the funnel (1) is bonded and fixed to the threaded joint (2), the threaded joint (2) is fitted in the threaded hole opened on the upper edge of the base block (3).

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