Blending device and urinalysis instrument

Abstract

The utility model discloses a blending device and a urinalysis instrument. According to the utility model, the blending device is provided with a first port and a second port which are positioned on the same side; a first flow channel, a uniform mixing cavity and a second flow channel which are connected with the first port and the second port and are connected in sequence are arranged in the uniform mixing device; the first flow channel, the uniform mixing cavity and the second flow channel are positioned above the first port and the second port; the inner diameter of the uniform mixing cavity is larger than that of the first flow channel and that of the second flow channel. Therefore, the structure is simple and small, and a better mixing effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of urine testing equipment technology, and in particular to a mixing device and a urine testing instrument. Background Technology

[0002] With increasing human lifespan, the importance of health care and maintenance has received growing attention. Urine can reflect a person's health status to a certain extent, and quantitative analysis of urine components can reveal diseases of the pancreas and kidneys. Urine analysis is an important indicator for detecting a person's physical condition, typically testing for pH, protein, occult blood, specific gravity, glucose, ketones, urobilinogen, nitrates, white blood cells, bilirubin, and vitamin C, reflecting a range of indicators of the body. Urine tests are usually conducted in hospitals. Due to strained medical resources, patients often have to queue to register, see a doctor, pay fees, collect urine samples, and wait for batches of urine tests before queuing for results, which is time-consuming and laborious.

[0003] Currently, home-use urine analyzers are available on the market. These analyzers require the urine sample to be mixed with reagents before testing. How to achieve better mixing to improve testing accuracy is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device and a urine analyzer that are simple in structure, compact, and can achieve better mixing results.

[0005] To solve the above-mentioned technical problems, the present invention provides a mixing device, wherein the mixing device has a first port and a second port located on the same side; the mixing device has a first flow channel, a mixing cavity, and a second flow channel connected to the first port and the second port in sequence; the first flow channel, the mixing cavity, and the second flow channel are located above the first port and the second port; the inner diameter of the mixing cavity is larger than the inner diameter of the first flow channel and the second flow channel.

[0006] Compared with the prior art, this utility model embodiment has the advantages of setting up a first flow channel, a mixing chamber, and a second flow channel. By passing the liquid into the mixing device and repeatedly passing it through the first flow channel, the mixing chamber, and the second flow channel, the liquid can be fully mixed. Moreover, the first flow channel, the mixing chamber, and the second flow channel are located above the first port and the second port, and the first port and the second port are located on the same side. This structure provides a space for the liquid to flow and mix, while making comprehensive use of the internal space. The overall structure is simple and compact, and mixing can be achieved without excessively long flow channels. It also saves space when installed in a urine analyzer.

[0007] In one embodiment, the distance from the connection point of the first flow channel and the mixing cavity to the first port and the second port is less than the distance from the connection point of the second flow channel and the mixing cavity to the first port and the second port.

[0008] In one embodiment, the first flow channel and the second flow channel are tangentially connected to the top and bottom of the mixing chamber, respectively.

[0009] In one embodiment, the inner wall of the mixing cavity includes a first arc surface and a second arc surface opposite to the first arc surface, both of which are arc surfaces protruding outward;

[0010] The walls of the first flow channel and the walls of the second flow channel are both connected to the first arc surface and the second arc surface, and the first flow channel smoothly transitions to the first arc surface; the second flow channel smoothly transitions to the second arc surface.

[0011] In one embodiment, the first arc surface and the second arc surface are circular arc surfaces with the same diameter and the same arc length, and the tangents at both ends of the first arc surface and the second arc surface are parallel to each other.

[0012] In one embodiment, the inner wall of the mixing cavity includes a first arc surface and a second arc surface opposite to the first arc surface, both of which are arc surfaces protruding outward;

[0013] The radius of the first arc surface ranges from 5mm to 8mm, and the arc length ranges from 7mm to 10mm;

[0014] The radius of the second arc surface ranges from 5mm to 8mm, and the arc length ranges from 7mm to 10mm.

[0015] In one embodiment, the first flow channel has multiple sets of first bends, and at least two sets of the multiple first bends have different bending directions;

[0016] The second flow channel has multiple sets of second bends, and at least two sets of the multiple second bends have different bending directions;

[0017] The mixing device is connected to a drive pump module, which drives the liquid to flow back and forth in the first flow channel, the mixing chamber, and the second flow channel to achieve liquid mixing.

[0018] In one embodiment, multiple sets of the first bends and multiple sets of the second bends are symmetrically arranged on both sides of the mixing cavity along the center of the mixing cavity.

[0019] In one embodiment, the mixing device has a mixing plate and a detection sensor disposed on the mixing plate; the first flow channel, the mixing cavity, and the second flow channel are all disposed within the mixing plate, the mixing plate is a transparent plate, and the detection sensor is opposite to the mixing cavity to detect the liquid in the mixing cavity.

[0020] This embodiment also provides a urine analyzer, which includes: a mixing device as described in any one of the above, a drive pump module, and a control module, wherein the control module is electrically connected to the drive pump module; the control module is used to control the drive pump module to drive liquid into the mixing device from either the first port or the second port, and to drive the liquid to flow back and forth between the first flow channel, the mixing chamber, and the second flow channel to achieve liquid mixing; the control module is also used to drive the liquid to retreat after driving the liquid forward for a preset time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the mixing device according to one embodiment of the present invention;

[0022] Figure 2 and Figure 3 This is a cross-sectional view of a mixing device according to an embodiment of the present invention;

[0023] Reference numerals: 100, mixing device; 1, first port; 2, second port; 3, first flow channel; 31, bend; 32, bend; 4, mixing chamber; 41, first arc surface; 42, second arc surface; 5, second flow channel; 6, mixing plate; 7, detection sensor. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0025] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0026] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are merely illustrative of the essential spirit of the technical solution of this utility model.

[0027] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0028] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0029] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0030] The urine analyzer can be used on a toilet seat or independently to obtain urine samples. It can remove air bubbles from the sample or water and is suitable for routine urinalysis, such as 14 ascorbic acid tests, including vitamin C (VC), white blood cells (WBC), urobilinogen (URO), bilirubin (BIL), occult blood (BLD), nitrite (NIT), pH, protein (PRO), urine specific gravity (SG), urine ketones (KET), urine glucose (GLU), urine creatinine (CR), urine calcium (CA), and a comprehensive value of urine uric acid (based on the CKD-EPI algorithm) for microalbumin (MA) + urine uric acid + UACR (urine microalbumin / creatinine ratio) + UPCR (urine protein / creatinine ratio).

[0031] The embodiments of this utility model are described below with reference to the accompanying drawings.

[0032] One embodiment of this utility model relates to a mixing device 100. For example... Figure 1 , Figure 2 and Figure 3As shown, the mixing device 100 is used in a urine analyzer. The mixing device 100 has a first port 1 and a second port 2 located on the same side. The mixing device 100 has a first flow channel 3, a mixing chamber 4, and a second flow channel 5 connected sequentially to the first port 1 and the second port 2. The first flow channel 3, the mixing chamber 4, and the second flow channel 5 are located above the first port 1 and the second port 2. The inner diameter of the mixing chamber 4 is larger than the inner diameters of the first flow channel 3 and the second flow channel 5. In use, the first port 1 can be used as the inlet and the second port 2 as the outlet, or vice versa, depending on the application requirements. Taking the first port 1 as the inlet and the second port 2 as the outlet as an example, the mixed liquid can be fed into the mixing device 100, flowing into the first flow channel 3, then into the mixing chamber 4, and then into the second flow channel 5. Afterward, the liquid is drawn back into the mixing chamber 4 and flows back into the first flow channel 3, repeating this process multiple times to achieve thorough mixing of the liquid.

[0033] By setting up a first flow channel 3, a mixing chamber 4, and a second flow channel 5, liquid is introduced into the mixing device 100 and flows back and forth between the first flow channel 3, the mixing chamber 4, and the second flow channel 5, achieving thorough mixing of the liquid. Furthermore, the first flow channel 3, the mixing chamber 4, and the second flow channel 5 are located above the first port 1 and the second port 2, and the first port 1 and the second port 2 are located on the same side. This structure provides a specific space for liquid to flow and mix while making comprehensive use of the internal space. The overall structure is simple and compact, and mixing can be achieved without excessively long flow channels, saving space when installed in a urine analyzer.

[0034] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, the distance from the connection point of the first flow channel 3 and the mixing chamber 4 to the first port 1 and the second port 2 is less than the distance from the connection point of the second flow channel 5 and the mixing chamber 4 to the first port 1 and the second port 2. This creates a flow difference between the upstream and downstream sides when the liquid flows through the mixing chamber 4, allowing the liquid to mix thoroughly.

[0035] Optionally, such as Figure 1 , Figure 2 and Figure 3 As shown, the first flow channel 3 and the second flow channel 5 are tangentially connected to the top and bottom of the mixing chamber 4, respectively. The liquid can first enter the mixing chamber 4 from the first flow channel 3 and then flow into the second flow channel 5, and then flow back to achieve reciprocating flow. Alternatively, it can first flow into the mixing chamber 4 from the second flow channel 5 and then enter the first flow channel 3, and then flow back to achieve reciprocating flow. This can be set according to the actual situation, making the mixing device 100 more widely applicable.

[0036] Furthermore, such as Figure 2 and Figure 3As shown, the inner wall of the mixing chamber 4 includes a first arc surface 41 and a second arc surface 42 opposite to the first arc surface 41. Both the first arc surface 41 and the second arc surface 42 are arc surfaces protruding outward. The walls of the first flow channel 3 and the second flow channel 5 are connected to the first arc surface 41 and the second arc surface 42, and the first flow channel 3 smoothly transitions to the first arc surface 41, and the second flow channel 5 smoothly transitions to the second arc surface 42.

[0037] In addition, such as Figure 2 and Figure 3 As shown, the first arc surface 41 and the second arc surface 42 are circular arc surfaces with the same diameter and the same arc length, and the tangents at both ends of the first arc surface 41 and the second arc surface 42 are parallel to each other.

[0038] Furthermore, such as Figure 2 and Figure 3 As shown, the radius of the first arc surface 41 ranges from 5mm to 8mm, and the arc length ranges from 7mm to 10mm. Optionally, the radius of the first arc surface 41 is 6mm or 7mm, and the arc length is 7.85mm or 8mm. The radius of the second arc surface 42 ranges from 5mm to 8mm, and the arc length ranges from 7mm to 10mm. Optionally, the radius of the second arc surface 42 is 6mm or 7mm, and the arc length is 7.85mm or 8mm. The diameters of the first flow channel 3 and the second flow channel 5 range from 1mm to 2mm, more preferably 1.5mm. The required mixed liquid volume for testing is approximately 55µm. Multiple experiments have shown that the above-mentioned dimensions of the mixing chamber 4, the first flow channel 3, and the second flow channel 5 can ensure that the liquid is fully mixed during the mixing process.

[0039] Furthermore, such as Figure 2 and Figure 3 As shown, the first flow channel 3 has multiple sets of first bends, with at least two sets of first bends having different bending directions. The second flow channel 5 has multiple sets of second bends, with at least two sets of second bends having different bending directions. Specifically, taking the first flow channel 3 as an example, the first flow channel 3 has a set of longitudinally extending bends 31 and a set of horizontally extending bends 32. The horizontally extending bends 32 extend to connect with the first port 1, and the longitudinally extending bends 31 connect the horizontally extending bends 32 and the mixing chamber 4. The bends 31 connect to the wall of the first arc surface 41 and extend horizontally to be tangent to the first arc surface 41. The second flow channel 5 is similar, thus allowing the mixed liquid to have multiple flow directions and impact forces, facilitating liquid mixing.

[0040] In addition, the mixing device 100 is connected to a drive pump module, which drives the liquid to flow back and forth in the first flow channel 3, the mixing chamber 4, and the second flow channel 5 to achieve liquid mixing. The drive pump module can be an air pump or a peristaltic pump, which pushes the liquid into the first flow channel 3 until it flows into the second flow channel 5, and then pushes the liquid back into the first flow channel 3, repeating this process multiple times. This allows the liquid to pass through the first arc surface 41 and the second arc surface 42 and enter the mixing chamber 4 for agitation, thereby achieving thorough mixing of the liquid.

[0041] Furthermore, such as Figure 2 and Figure 3 As shown, multiple sets of first bends and multiple sets of second bends are symmetrically arranged on both sides of the mixing chamber 4 along the center of the mixing chamber 4. Thus, while the flow channel is relatively long and the liquid has multiple flow directions, the volume of the mixing device 100 is not increased. The overall structure is simple, but the practical effect is strong.

[0042] In addition, such as Figure 1 As shown, the mixing device 100 includes a mixing plate 6 and a detection sensor 7 disposed on the mixing plate 6. The first flow channel 3, the mixing chamber 4, and the second flow channel 5 are all located within the mixing plate 6, which is transparent. The detection sensor 7 is positioned opposite the mixing chamber 4 to detect the liquid within it. The detection sensor 7 includes a light source and a photosensitive sensor, which are respectively positioned at corresponding locations on the mixing plate 6. The mixing plate 6 is made of transparent material. The light source is an LED light source used to illuminate the liquid within the mixing chamber 4, while the photosensitive sensor senses the light emitted by the light source after illuminating the mixed liquid, thereby detecting the liquid composition.

[0043] Another embodiment of this utility model relates to a urine analyzer. For example... Figure 1 As shown, the urine analyzer includes: a mixing device 100 as described in the above embodiment, a drive pump module, and a control module, wherein the control module is electrically connected to the drive pump module. The control module is used to control the drive pump module to drive liquid into the mixing device 100 from either the first port 1 or the second port 2, and to drive the liquid to flow back and forth between the first flow channel 3, the mixing chamber 4, and the second flow channel 5 to achieve liquid mixing; the control module is also used to drive the liquid to retreat after a preset time of forward movement.

[0044] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0045] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0046] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A mixing device, characterized in that, The mixing device has a first port and a second port on the same side; the mixing device has a first flow channel, a mixing cavity, and a second flow channel connected to the first port and the second port in sequence; the first flow channel, the mixing cavity, and the second flow channel are located above the first port and the second port; the inner diameter of the mixing cavity is larger than the inner diameter of the first flow channel and the second flow channel.

2. The mixing device according to claim 1, characterized in that, The distance from the connection point of the first flow channel and the mixing cavity to the first port and the second port is less than the distance from the connection point of the second flow channel and the mixing cavity to the first port and the second port.

3. The mixing device according to claim 2, characterized in that, The first flow channel and the second flow channel are tangentially connected to the top and bottom of the mixing chamber, respectively.

4. The mixing device according to claim 3, characterized in that, The inner wall of the mixing chamber includes a first arc surface and a second arc surface opposite to the first arc surface, both of which are arc surfaces protruding outwards; The walls of the first flow channel and the walls of the second flow channel are both connected to the first arc surface and the second arc surface, and the first flow channel smoothly transitions to the first arc surface; the second flow channel smoothly transitions to the second arc surface.

5. The mixing apparatus according to claim 4, characterized in that, The first arc surface and the second arc surface are circular arc surfaces with the same diameter and the same arc length, and the tangents at both ends of the first arc surface and the second arc surface are parallel to each other.

6. The mixing apparatus according to claim 1, characterized in that, The inner wall of the mixing chamber includes a first arc surface and a second arc surface opposite to the first arc surface, both of which are arc surfaces protruding outwards; The radius of the first arc surface ranges from 5mm to 8mm, and the arc length ranges from 7mm to 10mm; The radius of the second arc surface ranges from 5mm to 8mm, and the arc length ranges from 7mm to 10mm.

7. The mixing apparatus according to claim 1, characterized in that, The first flow channel has multiple sets of first bends, and at least two sets of the multiple first bends have different bending directions. The second flow channel has multiple sets of second bends, and at least two sets of the multiple second bends have different bending directions; The mixing device is connected to a drive pump module, which drives the liquid to flow back and forth in the first flow channel, the mixing chamber, and the second flow channel to achieve liquid mixing.

8. The mixing apparatus according to claim 7, characterized in that, Multiple sets of the first bend and multiple sets of the second bend are symmetrically arranged on both sides of the mixing cavity along the center of the mixing cavity.

9. The mixing apparatus according to claim 1, characterized in that, The mixing device has a mixing plate and a detection sensor disposed on the mixing plate; the first flow channel, the mixing cavity, and the second flow channel are all disposed inside the mixing plate, the mixing plate is a transparent plate, and the detection sensor is opposite to the mixing cavity to detect the liquid inside the mixing cavity.

10. A urine analyzer, characterized in that, The urine analyzer includes: a mixing device as described in any one of claims 1-9, a drive pump module, and a control module, wherein the control module is electrically connected to the drive pump module; The control module is used to control the drive pump module to drive the liquid to enter the mixing device from either the first port or the second port, and drive the liquid to flow back and forth between the first flow channel, the mixing chamber and the second flow channel to achieve liquid mixing; the control module is also used to drive the liquid to retreat after driving the liquid forward for a preset time.

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