Liquid middle-section sampling device

Abstract

The utility model discloses a liquid middle-section sampling device, which relates to the technical field of sampling devices, and comprises a guider, a fluid director and a seesaw, a liquid channel is arranged in the guider, one end of the guider is a liquid inlet, and the other end of the guider is a liquid outlet; the fluid director is connected with the guider, a sampling channel communicated with the liquid channel is arranged in the fluid director, the top end of the sampling channel is a sampling inlet, and the bottom end of the sampling channel is a sampling outlet; the seesaw is rotationally arranged in the guider, a flow divider is arranged at the end, close to the liquid inlet, of the seesaw, and a liquid storage bin is arranged at the end, close to the liquid outlet, of the seesaw; when the urine sampling device is used, initial-section urine enters the urine channel, passes through the flow divider and crosses the sampling inlet, middle-section urine enters the sampling channel from the flow channel holes and is collected in the liquid storage device, sampling of the middle-section urine is finished, follow-up urine passes through the lower portion of the seesaw and is finally discharged from the liquid outlet, and when the urine sampling device is used for sampling, urine holding is not needed. And a more comfortable use feeling is brought to a sampler.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a liquid mid-section sampling device. Background Art

[0002] Body fluid sampling and testing is a commonly used auxiliary means of clinical disease screening.

[0003] Urine test is a kind of body fluid sampling test in medicine. It is widely used in clinical practice and can diagnose whether there is early kidney disease, urinary tract infection, etc. However, different urine samples are required according to different diseases. Sexually transmitted diseases such as HPV and syphilis require first-stream urine sample testing, and kidney diseases require mid-stream urine samples. Clinical laboratory standards require that during routine urine tests, the mid-stream urine of the subject must be taken (mid-stream urine is urine from the bladder. In routine urine tests, the test results of mid-stream urine are more accurate and can more truly reflect the situation in the body). Do not take first-stream urine (because there will be more red and white blood cells and bacteria in the initial urine, which is mainly used to detect whether there are abnormalities in the urethra). Therefore, when the patient collects urine, he needs to urinate a part of the urine first and collect the middle urine so that the red and white blood cells and bacteria in the urethra can be washed away, and the collected urine test is more accurate.

[0004] Urinalysis currently mainly involves collecting urine using a urine cup. However, for patients, children, and the elderly, using the existing urine cup requires them to urinate for a while and then hold the urine, then use the urine cup to collect the midstream urine, and then hold the urine again to prevent the latter urine from contaminating the midstream urine. This operation method is extremely inconvenient for patients, children, and the elderly.

[0005] In view of this, a liquid mid-section sampling device is urgently needed. Summary of the invention

[0006] In view of the problems existing in the prior art, the utility model solves the problems with the following technical structure.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A liquid mid-section sampling device comprises: a guide, a flow guide and a seesaw, wherein a liquid channel is arranged in the guide, one end of the guide is a liquid inlet, and the other end is a liquid outlet;

[0009] The flow guide is connected to the guide, and a sampling channel communicating with the liquid channel is arranged in the flow guide, the top of the sampling channel is a sampling inlet, and the bottom of the sampling channel is a sampling outlet;

[0010] The seesaw is rotatably arranged in the guide, a diverter is arranged at one end of the seesaw near the liquid inlet, a liquid storage bin is arranged at one end of the seesaw near the liquid outlet, the liquid storage bin is used to store liquid, the weight of the diverter is greater than the weight of the liquid storage bin, and when the sum of the weight of the liquid storage bin and the weight of the liquid loaded into the liquid storage bin is greater than the weight of the diverter, the seesaw rotates.

[0011] Its further characteristic is that

[0012] Both sides of the seesaw are provided with mounting shafts, and both sides of the liquid channel are provided with positioning grooves, and the mounting shafts are clamped in the corresponding positioning grooves.

[0013] The seesaw divides the liquid channel into two layers, the upper part of the seesaw is the first channel, and the lower part of the seesaw is the second channel.

[0014] A baffle is arranged between the liquid inlet and the liquid outlet, and the baffle is arranged on the top of the sampling inlet and close to the liquid outlet.

[0015] Both sides of the liquid channel are provided with mounting grooves, and the mounting grooves extend from the liquid outlet to the positioning grooves on the same side.

[0016] A check valve is arranged at the top of the sampling channel, and a plurality of flow channel holes are arranged on the check valve.

[0017] An air guide channel is arranged in the deflector, an air inlet of the air guide channel is arranged at the bottom end of the deflector, and an air outlet of the air guide channel is arranged at the top of the deflector.

[0018] The air outlet of the air guiding channel is arranged in the liquid channel, and the air outlet of the air guiding channel faces one side of the liquid outlet.

[0019] Both sides of the liquid storage bin are inwardly concave to form a flow channel.

[0020] The flow guide is arranged between the liquid inlet and the liquid outlet, a second baffle is arranged on the top of the flow guide, and the second baffle is located on the side of the flow guide close to the liquid outlet.

[0021] The above structure of the utility model can achieve the following beneficial effects:

[0022] When in use, the initial urine enters the urine channel, passes through the diverter, crosses the sampling inlet, and reaches the liquid storage tank at the other end of the seesaw, until the weight of the liquid storage tank at one end of the seesaw exceeds the weight of the diverter end of the seesaw. The seesaw rotates, the liquid storage tank moves downward, and the diverter moves upward, so that the liquid inlet and the sampling inlet are connected, and then the middle urine reaches the sampling inlet, enters the sampling channel from multiple flow channel holes, and is collected in the liquid storage tank. When the sampling of the middle urine is completed, the subsequent urine passes from the bottom of the seesaw and is finally discharged from the liquid outlet. When using the present application for sampling, there is no need to hold urine, which brings a more comfortable use experience to the sampler. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of this embodiment;

[0024] Figure 2 is a cross-sectional schematic diagram of this embodiment;

[0025] Figure 3 is a cross-sectional schematic diagram of the present embodiment in use;

[0026] Figure 4 is a three-dimensional cross-sectional schematic diagram of this embodiment;

[0027] Figure 5 It is a bottom view of this embodiment;

[0028] Figure 6 Schematic diagram of the structure of the seesaw in this embodiment.

[0029] In the figure: 100, guide; 110, liquid channel; 111, liquid inlet; 112, liquid outlet; 113, positioning groove; 114, mounting groove; 200, flow guide; 210, sampling channel; 211, sampling inlet; 212, sampling outlet; 220, air guide channel; 230, guide plate; 300, seesaw; 310, diverter; 311, counterweight; 320, liquid storage tank; 330, mounting shaft; 400, check valve; 410, flow channel hole; 500, baffle. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0031] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0032] The device disclosed in the utility model is suitable for: sampling liquid, especially for the need to distinguish the initial section of the liquid from the middle section (or the middle section and later sections), and guide the liquid in the middle section to a sampling test tube or other liquid storage device. Liquid sampling includes but is not limited to urine sampling, discharge the first section of urine, and sample the middle section of urine. If used for urine collection, the device can be made into at least two versions to accommodate children, adults and the elderly.

[0033] The following is combined with Figure 1-Figure 6 Taking urine sampling as an example, this application is further described in detail.

[0034] refer to Figure 1-Figure 4 A liquid mid-section sampling device shown in the figure comprises: a guide 100, a liquid channel 110 is arranged in the guide 100, one end of the guide 100 is a liquid inlet 111, urine enters the liquid channel 110 from the liquid inlet 111, in order to facilitate urine to enter the urine channel 110 and reduce the situation of urine splashing, the liquid inlet 111 is set to be funnel-shaped, and the other end of the guide 100 is a liquid outlet 112, the liquid outlet 112 is used to discharge the first-section urine and the terminal urine except the sampled middle-section urine, when in use, the liquid outlet 112 is generally facing the urine pool or other urine discharge location to avoid urine contamination of the environment;

[0035] refer to Figure 1-Figure 5As shown, the flow guide 200 is used to guide the sampled middle urine, and a sampling channel 210 is arranged therein. The top of the sampling channel 210 is a sampling inlet 211. The sampling channel 210 is connected with the liquid channel 110 through the sampling inlet 211. The optimal position of the sampling inlet 211 is located at the bottom wall of the liquid channel 110. When urine flows through the sampling inlet 211, the urine enters the sampling channel 210. The bottom end of the sampling channel 210 is a sampling outlet 212. The sampling outlet 212 is connected to an external liquid storage device (such as a sampling test tube, etc.) and enters the sampling channel. The urine in 210 enters the reservoir from the sampling outlet 212. In order for the urine level in the deflector 200 to rise to the top of the sampling channel 210 as the urine enters, the top of the reservoir should be flush with the top of the deflector 200 or urine will not leak out of the connection between the reservoir and the deflector 200; when the liquid level in the sampling channel 210 reaches the top of the sampling channel 210 (i.e., flush with the bottom wall of the liquid channel 110, completing the mid-stream urine sampling), the subsequent urine flows directly from the top of the sampling channel 210, and is finally discharged from the liquid outlet 112 until the urination is completed.

[0036] Further optimization is that Figure 2 and Figure 3 As shown, in order to prevent subsequent urine from entering the sampling channel 210 and mixing with the sampled midstream urine to contaminate the sampled midstream urine, a check valve 400 is provided at the top of the sampling channel 210. The midstream urine enters the sampling channel 210 through a plurality of flow channel holes 410 on the check valve 400. When the liquid level reaches the check valve 400, since the aperture of the flow channel hole 410 is very small, the tension of the liquid prevents the subsequent urine from convecting with the urine in the sampling channel 210, thereby reducing the occurrence of subsequent urine contaminating the sampled urine.

[0037] refer to Figure 4-Figure 5As shown, in order to separate the first-pass urine from the middle-pass urine and prevent the first-pass urine from entering the sampling channel, a seesaw 300 is rotatably arranged in the guide 100 to drain the first-pass urine. The specific structure of the seesaw 300 is that a diverter 310 is arranged at one end of the seesaw 300 close to the liquid inlet 111 (a plurality of counterweights 311 are arranged on the top surface of the diverter 310, and the weight and number of the counterweights 311 are set according to actual needs, and two adjacent counterweights 311 are arranged at the same time. 1 are drainage channels for liquid to pass through), in the initial state, the suspension end of the diverter 310 extends to the side of the sampling inlet 211 close to the liquid inlet 111, and the suspension end of the diverter 310 is in contact with the bottom wall of the urine channel 110, so as to isolate the sampling inlet 211 from the liquid inlet 111. When the initial urine enters the urine channel 110, it passes through the diverter 310 and crosses the sampling inlet 211 to reach the other end of the seesaw 300, and the seesaw 300 is close to the bottom wall of the urine channel 110. A liquid storage tank 320 is provided near the liquid outlet 112 (the weight of the diverter 310 end of the seesaw 300 is greater than the weight of the liquid storage tank 320 end of the seesaw 300). The initial urine guided by the diverter 310 enters the liquid storage tank 320, so that the weight of the liquid storage tank 320 end of the seesaw 300 gradually increases until it exceeds the weight of the diverter 310 end of the seesaw 300. At this time, the seesaw 300 rotates, that is, the liquid storage tank 320 moves downward, and the diverter 310 It moves upward to connect the liquid inlet 111 with the sampling inlet 211, and then the middle urine reaches the sampling inlet 211, enters the sampling channel 210 from the multiple flow channel holes 410, and is collected in the liquid reservoir. When the sampling of the middle urine is completed, the subsequent urine passes from the bottom of the seesaw 300 (the seesaw 300 divides the liquid channel 110 into two layers, the top of the seesaw 300 is the first channel, and the bottom of the seesaw 300 is the second channel), and is finally discharged from the liquid outlet 112.

[0038] refer to Figure 3-Figure 4As shown, the seesaw 300 is rotatably arranged in the guide 100, and its installation is carried out in a more convenient manner as much as possible. In this embodiment, installation shafts 330 are arranged on both sides of the seesaw 300, or one installation shaft 330 penetrates the seesaw 300 and extends to both sides of the seesaw 300, and positioning grooves 113 are arranged on both sides of the liquid channel 110. During installation, the two installation shafts 330 are respectively clamped in the corresponding installation grooves 114 or the two ends of one installation shaft 330 are respectively clamped in the corresponding positioning grooves 113, so that the seesaw 300 can be installed in the guide 100. In order to achieve the purpose of free rotation inside, and in order to further improve the assembly efficiency, mounting grooves 114 extending from the liquid outlet 112 to the positioning grooves 113 on the same side are provided on both sides of the liquid channel 110. During installation, the end of the mounting shaft 330 is placed in the corresponding mounting groove 114 from one end of the liquid outlet 112, and then the seesaw 300 is pushed into the guide 100, so that the seesaw 300 slides on the two mounting grooves 114 and is finally guided to the two positioning grooves 113, thereby completing the assembly of the seesaw 300. In order to prevent the seesaw 300 from falling off, the depth of the positioning groove 113 is greater than the mounting groove 114.

[0039] refer to Figure 2-Figure 3 As shown, in actual use, urine may pass through the liquid channel 110 directly from above the seesaw 300, which will affect the sampling result. In order to avoid this situation, a baffle 500 is arranged between the liquid inlet 111 and the liquid outlet 112. The bottom of the baffle 500 extends to the side of the sampling inlet 211 close to the liquid outlet 112. A liquid outlet is reserved at the bottom of the baffle 500. When urine enters the urine channel 110, it is blocked by the baffle 500 and passes through the bottom of the baffle 500, so that urine is prevented from passing through the liquid channel 110 directly from above the seesaw 300, and the urine is guided to the diverter 310 or the sampling inlet 211. When the seesaw 300 rotates and the diverter 310 tilts up, the upper end surface of the diverter 310 can contact the baffle 500, so that a urination space for subsequent urine to pass through is reserved at the bottom of the liquid storage bin 320, thereby maintaining the smoothness of urine passage.

[0040] refer to Figure 2-Figure 4As shown, when urine enters the sampling channel 210, in order to prevent the air pressure in the sampling channel 210 and the liquid reservoir from being too high, which prevents urine from entering, an air guide channel 220 is provided in the deflector 200. The air inlet of the air guide channel 220 is preferably provided at the bottom end of the deflector 200 (on the same side as the sampling outlet 212), and the air outlet of the air guide channel 220 is provided at the top of the deflector 200. The air outlet of the air guide channel 220 can be provided on the outside of the deflector 200 and the guide 100. In this embodiment, the air outlet of the air guide channel 220 is provided on the inner side of the liquid channel 110. In order to prevent urine from entering the air guide channel 220, blocking the air guide channel 220 and affecting the air outlet effect, a guide plate is provided to guide the air outlet of the air guide channel 220 to the side facing the liquid outlet 112, and the guide plate 230 (as shown in FIG. Figure 2 The arrangement as shown in the figure can also achieve the effect of making the end of the sampling inlet 211 away from the liquid inlet 111 higher than the end of the sampling inlet 211 close to the liquid inlet 111, so that it has a barrier effect. When the midstream urine reaches the sampling inlet 211, it will not directly cross the sampling inlet 211, but will be blocked by the guide plate 230 to enter from the sampling inlet 211.

[0041] refer to Figure 6 As shown, the device can be designed into two models to be suitable for children and adults respectively. Since the urine volume of children and adults is different (adults urinate more at a time, and the amount of first-stage urine is relatively more), both sides of the liquid storage tank 320 are concave inward to form an overflow channel. When used by a group with a large urine volume, part of the first-stage urine diverted to one side of the liquid storage tank 320 by the diverter 310 will be directly discharged from the liquid outlet 112 from the overflow channel on both sides of the liquid storage tank 320, and the other part enters the liquid storage tank 320, so that a reasonable amount of first-stage urine is discharged and the sampling of mid-stage urine is more accurate. Of course, in order to achieve the above purpose, liquid storage tanks 320 with different capacities and diverters 310 with different weights can also be designed to achieve the purpose of eliminating different amounts of first-stage urine to adapt to different groups of people. Of course, when allocating them to samplers, seesaws of different specifications can be provided according to different groups of people to maximize the sampling accuracy of mid-stage urine.

[0042] Further optimization is that, in order to reduce production costs and improve production efficiency, the guide 100 and the guide 200 are integrated and adopt one-time injection molding. When in use, the seesaw 300 only needs to be installed in the guide 100, so that the user can operate and use it independently, which is convenient for the user.

[0043] As a further optimization, the present application can also sample first-pass urine. It only requires choosing not to install the seesaw 300 when in use. After the first-pass urine enters the urine channel, it directly enters the sampling channel 210 from the sampling inlet 211. When the urine level in the sampling channel 210 reaches the top of the sampling channel 210, the subsequent urine directly passes over the sampling inlet 211 and is discharged from the liquid outlet 112.

[0044] In summary, when the present application is used, the initial urine enters the urine channel 110, passes through the diverter 310 and crosses the sampling inlet 211, and reaches the liquid storage tank 320 at the other end of the seesaw 300, until the weight of the liquid storage tank 320 at one end of the seesaw 300 exceeds the weight of the diverter 310 at one end of the seesaw 300, the seesaw 300 rotates, the liquid storage tank 320 moves downward, and the diverter 310 moves upward, so that the liquid inlet 111 and the sampling inlet 211 are connected, and then the middle urine reaches the sampling inlet 211, enters the sampling channel 210 from multiple flow channel holes 410, and is collected in the liquid storage tank. When the sampling of the middle urine is completed, the subsequent urine passes from the bottom of the seesaw 300 and is finally discharged from the liquid outlet 112. When sampling is performed using the present application, there is no need to hold urine, which brings a more comfortable use experience to the sampler.

[0045] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A liquid mid-section sampling device, characterized in that: include: A guide (100), a flow guide (200) and a seesaw (300), wherein a liquid channel (110) is provided in the guide (100), one end of the guide (100) is a liquid inlet (111), and the other end is a liquid outlet (112); The flow guide (200) is connected to the guide (100), and a sampling channel (210) is provided in the flow guide (200) and is communicated with the liquid channel (110), the top end of the sampling channel (210) is a sampling inlet (211), and the bottom end of the sampling channel (210) is a sampling outlet (212); The seesaw (300) is rotatably arranged in the guide (100); a diverter (310) is arranged at one end of the seesaw (300) close to the liquid inlet (111); a liquid storage bin (320) is arranged at one end of the seesaw (300) close to the liquid outlet (112); the liquid storage bin (320) is used to store liquid; the weight of the diverter (310) is greater than the weight of the liquid storage bin (320); when the sum of the weight of the liquid storage bin (320) and the weight of the liquid loaded into the liquid storage bin (320) is greater than the weight of the diverter (310), the seesaw (300) rotates.

2. A liquid mid-section sampling device according to claim 1, characterized in that: The seesaw (300) is provided with mounting shafts (330) on both sides, the liquid channel (110) is provided with positioning grooves (113) on both sides, and the mounting shafts (330) are clamped in the corresponding positioning grooves (113).

3. A liquid mid-section sampling device according to claim 1, characterized in that: The seesaw (300) divides the liquid channel (110) into two layers, the upper portion of the seesaw (300) is a first channel, and the lower portion of the seesaw (300) is a second channel.

4. A liquid mid-section sampling device according to claim 1, characterized in that: A baffle (500) is provided between the liquid inlet (111) and the liquid outlet (112), and the baffle (500) is provided at the top of the sampling inlet (211) and close to the liquid outlet (112).

5. A liquid mid-section sampling device according to claim 4, characterized in that: Mounting grooves (114) are provided on both sides of the liquid channel (110), and the mounting grooves (114) extend from the liquid outlet (112) to the positioning grooves (113) on the same side.

6. A liquid mid-section sampling device according to claim 1, characterized in that: A check valve (400) is provided at the top end of the sampling channel (210), and a plurality of flow channel holes (410) are provided on the check valve (400).

7. A liquid mid-section sampling device according to claim 1, characterized in that: An air guide channel (220) is arranged in the deflector (200), an air inlet of the air guide channel (220) is arranged at the bottom end of the deflector (200), and an air outlet of the air guide channel (220) is arranged at the top of the deflector (200).

8. A liquid mid-section sampling device according to claim 7, characterized in that: The air outlet of the air guide channel (220) is arranged in the liquid channel (110), and the air outlet of the air guide channel (220) faces one side of the liquid outlet (112).

9. A liquid mid-section sampling device according to claim 1, characterized in that: Both sides of the liquid storage bin (320) are inwardly recessed to form a flow channel.

10. The liquid mid-section sampling device according to claim 1, characterized in that: The flow guide (200) is arranged between the liquid inlet (111) and the liquid outlet (112), and a second baffle is arranged at the top of the flow guide (200), and the second baffle is located on a side of the flow guide (200) close to the liquid outlet (112).

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