Liquid sampling device

Abstract

The utility model discloses a liquid sampling device, which relates to the technical field of sampling devices and comprises a guider and a fluid director, 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; a diversion inlet is formed in the top of the fluid director, and a diversion outlet is formed in the bottom end of the fluid director; according to the utility model, by arranging the guider and the fluid director, after entering the guider, the first-section urine is guided into the fluid director and is collected in an external liquid storage device through the fluid director, and when the liquid level of the urine in the fluid director reaches the fluid director inlet, the subsequent middle-section urine passes through the upper part of the fluid director inlet and is finally discharged from the fluid outlet; the first-stage urine cannot be polluted by subsequent urine, in the first-stage urine sampling process, a user does not need to interrupt urination, 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 liquid sampling device. Background Art

[0002] 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, mid-stream urine and back urine. With the development of the level of computational molecular detection, the detection of sexually transmitted infections by front urine is rapidly popularized, for example, it is used to detect urogenital infections (such as Chlamydia trachomatis) and other sexually transmitted infections. Standardized front urine collection has become the key to the accuracy of the test. The urine collection device currently used in clinical practice is generally a main urine cup plus a test tube, allowing patients to collect it by themselves. The shortcomings of this method are: 1. When urinating, when the urine cup is almost full, you need to stop urinating, otherwise it will cause urine to overflow onto your hands. It is especially difficult for the elderly, children, and patients to effectively control the interruption and pause when urinating. 2. The collection of front urine is difficult to standardize. In order to ensure the accuracy of the test results, it is necessary to ensure that the front urine is not diluted or contaminated by the subsequent mid-stream urine during sampling.

[0003] In view of the above, there is a need for a liquid sampling device for accurately sampling the initial volume of a liquid flow (eg, urine). Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model solves the problems with the following technical structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A liquid sampling device, comprising: a guide, a flow guide, the guide comprising an intermediate channel and a liquid outlet channel, the intermediate channel being connected to the liquid outlet channel, the end of the intermediate channel away from the liquid outlet channel being a flow port, the end of the intermediate channel close to the liquid outlet channel being a discharge port, the end of the liquid outlet channel close to the discharge port being a liquid outlet inlet, and the end of the liquid outlet channel away from the discharge port being a liquid outlet;

[0007] The end of the flow guide close to the flow outlet is a flow guide inlet, the end of the flow guide away from the flow outlet is a flow guide outlet, and the flow guide is connected with the middle channel through the flow outlet;

[0008] The discharge port is arranged above the side of the diversion inlet away from the liquid outlet or directly above the diversion inlet.

[0009] Its further characteristic is that

[0010] The flow-through opening is higher than the flow-discharging opening.

[0011] 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.

[0012] 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.

[0013] A lifting device is arranged in the deflector, and when the lifting device reaches the deflector inlet, the lifting device closes the deflector inlet.

[0014] A guide plate is arranged at the air outlet of the air guide channel, and the guide plate surrounds the air outlet of the air guide channel and guides the air to the side facing the liquid outlet.

[0015] The flow guide is detachably connected to the liquid storage device, and the liquid storage device, the middle channel, the liquid outlet channel, and the flow guide are interconnected.

[0016] The above structure of the utility model can achieve the following beneficial effects:

[0017] The device is provided with a guide and a flow diverter. After the initial urine enters the guide, it will be guided into the flow diverter and collected in an external liquid storage device through the flow diverter. When the liquid level of the urine in the flow diverter reaches the flow diversion inlet, the subsequent middle urine passes over the flow diversion inlet and is finally discharged from the liquid outlet. 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, thereby providing the user with a comfortable and hygienic urine collection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of this embodiment;

[0019] Figure 2 It is a schematic diagram of the structural cross-section of this embodiment;

[0020] Figure 3 It is a structural schematic diagram of the lifting device in this embodiment when blocking the diversion inlet;

[0021] Figure 4 is a planar structural cross-sectional view of the guide and the deflector in this embodiment;

[0022] Figure 5 is a sectional view of the three-dimensional structure of the guide and the deflector in this embodiment;

[0023] Figure 6 Schematic diagram of the structure of the lifting device in this embodiment;

[0024] Figure 7 is a three-dimensional structural cross-sectional view of the lifting device in this embodiment;

[0025] Figure 8 It is a bottom view of this embodiment.

[0026] 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 outlet 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

[0027] 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.

[0028] 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.

[0029] 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).

[0030] The following is combined with Figure 1-Figure 8 This application is described in further detail.

[0031] refer to Figure 1-Figure 4A liquid 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] refer to Figure 2-Figure 5 As shown, in order to avoid urine residue 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 side of the liquid outlet 112; wherein, the end of the intermediate channel 114 away from the liquid outlet channel 115 is a flow outlet 116, the end of the intermediate channel 114 close to the liquid outlet channel 115 is a discharge outlet 117, the end of the liquid outlet channel 115 close to the discharge outlet 117 is a liquid outlet inlet 118, the end of the liquid outlet channel 115 away from the discharge outlet 117 is the liquid outlet 112, the discharge outlet 117 is arranged above the side of the diversion inlet 211 away from the liquid outlet 112 or directly above the diversion inlet 211, and the flow outlet 116 is higher than the discharge outlet 118. The drainage port 117 is provided at the bottom of the middle channel 114, and the bottom end of the drainage port 117 is preferably flush with the diversion inlet 211. 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 drainage 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 drainage port 117 is provided 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 drainage port 117 directly below the middle channel 114 is opposite to the diversion inlet 211, and the liquid outlet inlet 118 is provided on one side of the middle channel 114.

[0036] refer to Figure 5-Figure 8As 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 at the air outlet of the air guide channel 230 to guide the air outlet of the air guide channel 230 to the side facing the liquid outlet 112.

[0037] 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.

[0038] 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.

[0039] 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 sampling device, characterized in that: include: A guide (100) and a flow guide (200), wherein the guide (100) comprises an intermediate channel (114) and a liquid outlet channel (115), wherein the intermediate channel (114) is in communication with the liquid outlet channel (115), wherein one end of the intermediate channel (114) away from the liquid outlet channel (115) is a flow outlet (116), and one end of the intermediate channel (114) close to the liquid outlet channel (115) is a discharge outlet (117), and one end of the liquid outlet channel (115) close to the discharge outlet (117) is a liquid outlet inlet (118), and one end of the liquid outlet channel (115) away from the discharge outlet (117) is a liquid outlet (112); The end of the flow guide (200) close to the flow outlet (117) is a flow guide inlet (211), and the end of the flow guide (200) away from the flow outlet (117) is a flow guide outlet (212). The flow guide (200) is connected to the middle channel (114) through the flow outlet (117); The discharge port (117) is arranged above a side of the diversion inlet (211) away from the liquid outlet (112) or directly above the diversion inlet (211).

2. A liquid sampling device according to claim 1, characterized in that: The flow-through opening (116) is higher than the flow-discharging opening (117).

3. A liquid 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).

4. A liquid sampling device according to claim 3, 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).

5. The liquid sampling device according to claim 1, characterized in that: A lifting device (300) is arranged inside the deflector (200); when the lifting device (300) reaches the deflector inlet (211), the lifting device (300) closes the deflector inlet (211).

6. A liquid sampling device according to claim 4, characterized in that: A guide plate (119) is provided at the air outlet of the air guide channel (230), and the guide plate (119) surrounds the air outlet of the air guide channel 230 and guides the air to the side facing the liquid outlet (112).

7. The liquid 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 intermediate channel (114), the liquid outlet channel (115), and the flow guide (200) are interconnected.

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