Flow guider of sampling device

Abstract

The utility model discloses a fluid director of a sampling device, which relates to the technical field of sampling devices and comprises a fluid director, a lifting device and a liquid channel, one end of the liquid channel is a liquid inlet, and the other end of the liquid channel is a liquid outlet; a diversion inlet is formed in the top of the fluid director, a diversion outlet is formed in the bottom end of the fluid director, and the lifting device is arranged in the fluid director; according to the utility model, the fluid director is arranged, and the lifting device is arranged in the fluid director, so that first-section urine enters the fluid director through the fluid director, and the lifting device rises along with the rising of the liquid level of the urine in the fluid director until the lifting device moves to the limiting step and closes the fluid director, so that subsequent middle-section urine directly passes through the upper part of the fluid director; the first-stage urine cannot be polluted by subsequent urine, in the sampling process of the first-stage urine, a user does not need to interrupt urination, the urine cannot be splashed out, and a comfortable and sanitary urine collecting process is brought to the user.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a flow guide of a 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. Urine test, according to the time of urination, urine is divided into front urine, middle urine and back urine. The urine collection device currently used in clinical practice is generally a main urine cup plus a test tube, which allows patients to collect urine by themselves. The shortcomings of this method are: 1. When the urine cup is almost full, you need to stop urinating, otherwise it will cause urine to overflow onto your hands, especially for the elderly, children, and patients who find it difficult to effectively control the interruption and pause when urinating, which will cause discomfort to the user; 2. The excess urine in the urine cup needs to be poured into the urine pool; 3. Front urine is one of the non-invasive samples used for diagnostic purposes, such as for detecting urogenital infections (such as Chlamydia trachomatis) and other sexually transmitted infections. In order to ensure the accuracy of the detection structure, it is necessary to ensure that the front urine is not diluted or contaminated by the subsequent middle urine during sampling.

[0004] In view of the above, there is a need for a flow director of a sampling device for accurately sampling the initial volume of a liquid flow (eg, urine). Summary of the invention

[0005] In view of the problems existing in the prior art, the utility model solves the problems with the following technical structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A flow guide of a sampling device, comprising: a flow guide, and a lifting device, wherein the top of the flow guide is provided with a flow guide inlet, and the bottom of the flow guide is provided with a flow guide outlet; the lifting device is arranged in the flow guide;

[0008] A limiting step is provided at the diversion inlet, and when the lifting device is located at the diversion inlet, the lifting device fits with the limiting step, and the lifting device closes the diversion inlet;

[0009] A liquid channel is arranged above the diversion inlet, one end of the liquid channel is a liquid inlet, and the other end of the liquid channel is a liquid outlet. The diverter is connected with the liquid channel through the diversion inlet.

[0010] Its further characteristic is that

[0011] A sampling channel is provided in the deflector, support ribs are provided on the inner wall of the sampling channel, and the lifting device is provided between the support ribs.

[0012] The lifting device is configured as a float valve, and the float valve can float on a liquid.

[0013] A limiting protrusion is arranged at the bottom of the supporting rib.

[0014] The lifting device moves between the limiting step and the limiting protrusion.

[0015] An air guide channel is arranged in the deflector, and an air inlet of the air guide channel is arranged at the bottom end of the deflector.

[0016] The liquid channel is provided with an intermediate channel, the upper end of the intermediate channel is a flow port, the lower end of the intermediate channel is a discharge port, and the discharge port is arranged above the side of the guide inlet away from the liquid outlet or directly above the guide inlet.

[0017] The deflector is cylindrical.

[0018] The flow guide is detachably connected to the liquid storage device, and the liquid storage device, the flow guide and the liquid channel are interconnected.

[0019] The air outlet of the air guiding channel is located in the liquid outlet channel, and the air outlet of the air guiding channel faces one side of the liquid outlet.

[0020] The above structure of the utility model can achieve the following beneficial effects:

[0021] The device is provided with a flow guide and a lifting device in the flow guide. After the initial urine enters the liquid channel, the initial urine first enters the flow guide through the flow guide inlet, and is collected in an external liquid storage device through the flow guide. The lifting device rises with the rise of the liquid level of the urine in the flow guide until it moves to the limit step and closes the flow guide inlet. In this way, the subsequent middle urine passes directly over the flow guide inlet and is finally discharged from the liquid outlet. The initial urine will not be contaminated by the subsequent urine, and during the sampling process of the initial urine, the user does not need to interrupt urination and urine will not splash, thereby providing the user with a comfortable and hygienic urine collection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the three-dimensional structure of this embodiment;

[0023] Figure 2 It is a schematic diagram of the structural cross-section of this embodiment;

[0024] Figure 3 This is a schematic diagram of the structure when the lifting device in this embodiment blocks the diversion inlet;

[0025] Figure 4 is a planar structural cross-sectional view of the guide and the deflector in this embodiment;

[0026] Figure 5 is a sectional view of the three-dimensional structure of the guide and the deflector in this embodiment;

[0027] Figure 6 Schematic diagram of the structure of the lifting device in this embodiment;

[0028] Figure 7 is a three-dimensional structural cross-sectional view of the lifting device in this embodiment;

[0029] Figure 8 It is a bottom view of this embodiment.

[0030] In the figure: 100, guide; 110, liquid channel; 111, liquid inlet; 112, liquid outlet; 113, liquid inlet channel; 114, intermediate channel; 115, liquid outlet channel; 116, flow outlet; 117, discharge outlet; 118, liquid inlet; 119, guide plate; 200, flow guide; 210, guide channel; 211, flow guide inlet; 212, flow guide outlet; 220, sampling channel; 230, air guide channel; 300, lifting device; 400, supporting ribs; 410, limiting protrusion; 500, annular limiting step. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] The device disclosed by 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 initial section to a sampling tube or other liquid storage device. Liquid sampling includes but is not limited to urine sampling, collecting the front section urine, and guiding the middle section urine (or the middle section and later sections).

[0034] The following is combined with Figure 1-Figure 8 This application is described in further detail.

[0035] refer to Figure 1-Figure 4 The guide of a 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 the urine to enter the liquid channel 110 and reduce the splashing of urine, the liquid inlet 111 is arranged in a funnel shape, and the other end of the guide 100 is a liquid outlet 112, the liquid outlet 112 is used to discharge midstream urine and terminal urine outside the midstream urine, when in use, the liquid outlet 112 is generally facing the urine pool or other urine discharge locations to avoid urine contaminating the environment.

[0036] refer to Figure 1-Figure 4 As shown, the flow guide 200 is used to guide the sampled initial urine, and a flow guide inlet 211 is provided at the top, and a flow guide outlet 212 is provided at the bottom. The flow guide 200 is connected to the guide 100, and the optimal position of the flow guide inlet 211 is located at the bottom wall of the liquid channel 110. When the initial urine flows through the flow guide inlet 211, the urine enters the flow guide 200 and is discharged from the flow guide outlet 212 at the bottom of the flow guide 200. When in use, the flow guide outlet 212 needs to be connected to an external liquid storage device (such as a sampling test tube, etc.), so the flow guide outlet 212 is connected to the external liquid storage device (such as a sampling test tube, etc.). 12 The discharged urine enters the reservoir. In order for the urine level in the diverter 200 to rise to the diversion inlet 211 as the urine enters, the top of the reservoir should be flush with the top of the diverter 200 or the connection between the reservoir and the diverter 200 should be sealed to prevent urine from leaking out. When the liquid level in the diverter 200 reaches the diversion inlet 211 (that is, the liquid level is flush with the bottom wall of the liquid channel 110, and the initial urine sampling is completed), the subsequent urine flows directly over the diversion inlet 211 and is finally discharged from the liquid outlet 112 until the urination is completed.

[0037] refer to Figure 2 As shown, in order to further improve the convenience of liquid collection, the liquid storage device is mounted on the deflector from the bottom of the deflector 200, and the two are detachably connected. When connected, the liquid storage device, the deflector 200, and the liquid channel 110 are connected. In order to ensure that the urine level in the deflector 200 will rise to the diversion inlet 211 as the urine enters, the top of the liquid storage device should be flush with the top of the deflector 200 or the connection between the liquid storage device and the deflector 200 should be sealed. If it is a sealed connection, a seal can be set at the bottom of the deflector 200 to improve the sealing effect.

[0038] refer to Figure 3-Figure 7As shown, in order to prevent the subsequent urine from entering the deflector 200 and mixing with the sampled first-pass urine to contaminate the first-pass urine, a lifting device 300 that can float on the liquid level is provided in the deflector 200. The specific shape of the lifting device 300 is adapted to the diversion inlet 211. The lifting device 300 can adopt a float valve that can float on the liquid. As the first-pass urine enters the deflector 200, the urine level in the deflector 200 rises, and the lifting device 300 rises accordingly until the lifting device 300 floats to the diversion inlet 211 (as shown in FIG. 2 ). Figure 2 and Figure 3 As shown), the diversion inlet 211 is closed, so that when subsequent urine passes through the diversion inlet 211, it directly passes over the diversion inlet 211 and is finally discharged from the liquid outlet 112.

[0039] refer to Figure 2-Figure 5 As shown, the specific structure of the flow guide 200 can be: the flow guide 200 is preferably cylindrical, a sampling channel 220 is arranged in the flow guide 200, the bottom end of the sampling channel 220 is a flow guide outlet 212, at least two support ribs 400 extending along the extension direction of the sampling channel 220 are arranged on the ring side of the sampling channel 220, a guide channel 210 is between the two support ribs 400, the top outlet of the guide channel 210 is a flow guide inlet 211, the sampling channel 220 is connected with the flow guide inlet 211 through the guide channel 210, the lifting device 300 is limited by the support ribs 400 in the sampling channel, and is slidably arranged up and down in the guide channel 210 (in order to prevent the lifting device 300 from sliding off the bottom of the plurality of support ribs 400, the lifting device 300 is provided at the bottom of the support ribs 400). A limiting protrusion 410 is provided), so that the initial urine enters from the diversion inlet 211, passes through the guide channel 210, enters the sampling channel 220 on the ring side, and then is discharged from the diversion outlet 212 to the liquid storage device. As the urine enters, the liquid level in the guide channel 210 rises, causing the lifting device 300 to float, and in order to improve the sealing effect of the lifting device 300, an annular limiting step 500 is provided at the diversion inlet 211. When the lifting device 300 reaches the diversion inlet 211, the lifting device 300 fits with the annular limiting step 500 to close the diversion inlet 211. During design, in order to ensure that the lifting device 300 achieves a sealing effect, the inner side surface of the annular limiting step 500 should be flush with the inner side of the support rib 400.

[0040] refer to Figure 2-Figure 5As shown, in order to avoid residual urine on the top of the lifting device 300 after the initial urine sampling is completed, which is inconvenient for subsequent processing, the liquid channel 110 is divided into three sections, including a liquid inlet channel 113, an intermediate channel 114 and a liquid outlet channel 115 which are arranged in sequence from the liquid inlet 111 to the liquid outlet 112; wherein, the place where the liquid inlet channel 113 merges into the intermediate channel 114 is a flow outlet 116 (the upper end of the intermediate channel), and the other end of the intermediate channel 114 is a flow outlet 117 (the lower end of the intermediate channel), and the liquid inlet 118 of the liquid inlet channel 113 is arranged on one side of the diversion inlet 211, the flow outlet 116 is higher than the flow outlet 117, the diverter 200 is arranged below the intermediate channel 114, the flow outlet 116 is higher than the flow outlet 117, the diverter 200 is arranged below the intermediate channel 114, and the liquid inlet 118 of the liquid inlet channel 113 is The best position of the bottom is to be flush with the diversion inlet 211. The liquid channel 110 as a whole extends downward from the liquid inlet 111 to the side 112. When the lifting device 300 closes the diversion inlet 211, the urine from the liquid inlet channel 113 is blocked by the lifting device 300 and directly enters the liquid outlet channel 115 from the discharge port 117. In this way, it is ensured that urine will not remain in the device after the sampling is completed. In order to ensure that urine enters the diverter 200 first, the discharge port 117 is arranged above the side of the diversion inlet 211 away from the liquid outlet 112 or directly above the diversion inlet 211. The optimal design is that the middle channel 114 is vertically arranged, the diversion inlet 211 is directly below the middle channel 114, the discharge port 117 is arranged directly above the diversion inlet 211, and the opening of the discharge port 117 can be designed to be smaller than the diameter of the diversion inlet 211.

[0041] refer to Figure 5-Figure 8 As shown, when urine enters the sampling channel 220, in order to prevent the air pressure in the sampling channel 220 and the liquid reservoir from being too high, which prevents urine from entering, an air guide channel 230 is provided in the deflector 200, and the air inlet of the air guide channel 230 is provided at the bottom end of the deflector 200, and the air outlet of the air guide channel 230 is provided in the liquid channel 110, and the air outlet of the air guide channel 230 faces the side of the liquid outlet 112. In this embodiment, the air outlet of the air guide channel 230 is provided on the inner side of the liquid channel 110. In order to prevent urine from entering the air guide channel 230 and blocking the air guide channel 230, thereby affecting the air outlet effect, a guide plate 119 is provided to guide the air outlet of the air guide channel 230 to the side facing the liquid outlet 112.

[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 lifting device 300 only needs to be installed in the guide 100, and then it can be used, which is convenient for users to operate and use independently.

[0043] In summary, the device is provided with a guide 100 and a flow guide 200, and a lifting device 300 is provided in the flow guide 200. After the initial urine enters the guide 100, it will be guided into the flow guide 200, and collected in an external liquid storage device through the flow guide 200. The lifting device 300 rises with the rise of the liquid level of the urine in the flow guide 200 until the diversion inlet 211 is closed. In this way, the subsequent middle urine passes directly over the diversion inlet 211 and is finally discharged from the liquid outlet 112. The initial urine will not be contaminated by the subsequent urine, and during the initial urine sampling process, the user does not need to interrupt urination, and urine will not splash, giving the user a comfortable and hygienic urine collection process.

[0044] 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 flow guide for a sampling device, characterized in that: include: A flow guide (200) and a lifting device (300), wherein the top of the flow guide (200) is provided with a flow guide inlet (211), and the bottom of the flow guide (200) is provided with a flow guide outlet (212); the lifting device (300) is arranged in the flow guide (200); A limiting step (500) is provided at the diversion inlet (211); when the lifting device (300) is located at the diversion inlet (211), the lifting device (300) fits the limiting step (500), and the lifting device (300) closes the diversion inlet (211); A liquid channel (110) is provided above the flow guide inlet (211); one end of the liquid channel (110) is a liquid inlet (111); the other end of the liquid channel (110) is a liquid outlet (112); and the flow guide (200) is connected to the liquid channel (110) via the flow guide inlet (211).

2. The flow guide of the sampling device according to claim 1, characterized in that: The flow guide (200) is provided with a sampling channel (220), the inner wall of the sampling channel (220) is provided with support ribs (400), and the lifting device (300) is arranged between the support ribs (400).

3. The flow guide of the sampling device according to claim 1, characterized in that: The lifting device (300) is configured as a float valve, and the float valve can float on liquid.

4. The flow guide of the sampling device according to claim 2, characterized in that: A limiting protrusion (410) is provided at the bottom of the supporting rib (400).

5. The flow guide of the sampling device according to claim 4, characterized in that: The lifting device (300) moves between the limiting step (500) and the limiting protrusion (410).

6. The flow guide of the sampling device according to claim 1, characterized in that: An air guide channel (230) is arranged in the deflector (200), and an air inlet of the air guide channel (230) is arranged at the bottom end of the deflector (200).

7. The flow guide of the sampling device according to claim 1, characterized in that: The liquid channel is provided with an intermediate channel (114), the upper end of the intermediate channel (114) is a flow port (116), the lower end of the intermediate channel is a discharge port (117), and the discharge port (117) is provided above a side of the diversion inlet (211) away from the liquid outlet (112) or directly above the diversion inlet (211).

8. The flow guide of the sampling device according to claim 1, characterized in that: The deflector (200) is cylindrical.

9. The flow guide of the sampling device according to claim 1, characterized in that: The flow guide (200) is detachably connected to the liquid storage device, and the liquid storage device, the flow guide (200) and the liquid channel (110) are interconnected.

10. The flow guide of the sampling device according to claim 6, characterized in that: The air outlet of the air guide channel (230) is located in the liquid outlet channel (115), and the air outlet of the air guide channel (230) faces one side of the liquid outlet (112).

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