Device for measuring urine sugar concentration

Abstract

The application discloses a device for measuring urine sugar concentration, which comprises a prism body and a shell. The prism body comprises a first accommodating space, an interface, a first light-transmitting surface, a second light-transmitting surface, a third light-transmitting surface and a light-out surface. The first accommodating space accommodates urine. The interface is formed on the bottom surface of the first accommodating space. The first light-transmitting surface is formed on the first side surface of the first accommodating space. The second light-transmitting surface is formed on the second side surface of the first accommodating space opposite to the first light-transmitting surface. The third light-transmitting surface is arranged opposite to the interface. The light-out surface is arranged corresponding to the interface. The shell comprises a second accommodating space, a first light-out port and a second light-out port. The second accommodating space accommodates the prism body. The first light-out port has a first aperture and is arranged corresponding to the light-out surface of the prism body. The second light-out port has a second aperture and is arranged corresponding to the first light-out port, wherein the first aperture is less than or equal to the second aperture.

Description

Technical Field

[0001] This invention relates to a device for measuring liquid concentration, and more particularly to a device for measuring urine glucose concentration. Background Technology

[0002] A high or low level of glucose in urine indicates that the glomeruli have filtered too much sugar from the blood, preventing the renal tubules from fully absorbing it, and resulting in the excretion of glucose in the urine. Generally, when blood glucose levels exceed 180 mg / dL, glucose will appear in the urine. A positive result for urine glucose may indicate that the individual has a risk of diabetes, pancreatitis, liver disease, thyroid disease, or other conditions.

[0003] Elevated urine glucose is often considered a causal link to elevated blood sugar. However, because current blood glucose testing is an invasive procedure involving drawing blood, it creates psychological burden for the test subject, thus reducing their willingness to continue testing. Therefore, it is common for test subjects to delay testing, only to discover later that their elevated blood sugar has already caused the aforementioned conditions.

[0004] Furthermore, urine glucose testing currently primarily uses enzyme methods, with glucose oxidase method test strips being the most common. However, while test strips are inexpensive, the testing time is 30-60 seconds, lacking real-time accuracy for end users. Moreover, human judgment of color changes on the test strip is prone to error, thus reducing efficiency. Additionally, test strips have storage issues, easily deteriorating due to air and moisture, thus affecting the accuracy of urine glucose assessment.

[0005] Given the prevalence of diabetes among the Chinese population, the development of a non-invasive testing device to help individuals detect urine glucose in a non-invasive manner has become an urgent research topic. Summary of the Invention

[0006] In view of the above problems, the present invention discloses a device for measuring urine glucose concentration, comprising a prism body and a housing. The prism body includes a first accommodating space, an interface, a first light-transmitting surface, a second light-transmitting surface, a third light-transmitting surface, and a light-emitting surface. The first accommodating space contains urine. The interface is formed on the bottom surface of the first accommodating space. The first light-transmitting surface is formed on a first side surface of the first accommodating space. The second light-transmitting surface is formed on a second side surface of the first accommodating space opposite to the first light-transmitting surface. The third light-transmitting surface is disposed opposite to the interface. The light-emitting surface is disposed corresponding to the interface. The housing includes a second accommodating space, a first light-emitting port, and a second light-emitting port. The second accommodating space accommodates the prism body. The first light-emitting port has a first aperture and is disposed corresponding to the light-emitting surface of the prism body. The second light-emitting port has a second aperture and is disposed corresponding to the first light-emitting port, wherein the first aperture is less than or equal to the second aperture. When the first incident light beam enters the interior of the prism body, it is directed towards the interface and reflected by the interface to the light-emitting surface. It then exits the interior of the prism body through the light-emitting surface and exits through the first and second light-emitting ports. When the second incident light beam enters the interior of the prism body, it is directed towards the first light-transmitting surface and exits the interior of the prism body. It then enters the first receiving space, penetrates the urine within the first receiving space, and enters the second light-transmitting surface. After entering the interior of the prism body from the second light-transmitting surface, it is directed towards the third light-transmitting surface and exits the interior of the prism body from the third light-transmitting surface. The urine glucose concentration measuring device calculates a refractive index based on the first incident light beam exiting the interior of the housing, and calculates an absorbance based on the second incident light beam exiting the interior of the prism body. It then calculates a urine glucose concentration based on the refractive index and absorbance.

[0007] As described above, the urine glucose concentration measuring device of the present invention can simultaneously or individually detect the refractive index and absorbance of light. Combining the absorption and refraction characteristics, it can analyze urine glucose concentration without the need for a focusing element as a light source, thus simplifying optical path alignment. Furthermore, the urine glucose concentration measuring device of the present invention eliminates the need for lenses or eyepieces, reducing the overall size of the structure. In addition, the urine glucose concentration measuring device of the present invention eliminates the need for filters or polarizers, reducing production costs. Moreover, the urine glucose concentration measuring device of the present invention offers several advantages for urine glucose detection, including the elimination of chemical reagents and test strips, reduced human interpretation errors through instrument-based reading of detection information, the absence of oxygen and humidity degradation issues through optical detection, increased detection frequency through optical detection, and easy collection of test data for statistical analysis and real-time health management. Attached Figure Description

[0008] Figure 1A and Figure 1B These are the first and second perspective views of the device for measuring urine glucose concentration according to the present invention;

[0009] Figures 2A to 2D This is a perspective view, an exploded view, a top view, and a cross-sectional view of the device for measuring urine glucose concentration according to the present invention.

[0010] Figure 3A and Figure 3B This is a schematic diagram of light reflection and light penetration through liquid for the device for measuring urine glucose concentration according to the present invention;

[0011] Figures 4A to 4C This is a schematic diagram of the reflected light from the urine glucose concentration measuring device of the present invention;

[0012] Figures 5A to 5D This is a schematic diagram of the first incident light beam incident on the device for measuring urine glucose concentration according to the present invention;

[0013] Figure 6 This is a schematic diagram illustrating the relationship between urine concentration and absorbance according to the present invention;

[0014] Figure 7 This is a schematic diagram illustrating the relationship between urinary glucose concentration and absorbance and refractive index according to the present invention; and

[0015] Figure 8 This is a block diagram of the device for measuring urine glucose concentration according to the present invention.

[0016] [Symbol Explanation]

[0017] 3: Device for measuring urine glucose concentration

[0018] 1: Prism Body

[0019] 10: First storage space

[0020] 11: First light-transmitting surface

[0021] 12: Second translucent surface

[0022] 13: Third light-transmitting surface

[0023] 14: Light-emitting surface

[0024] 15: Light-receiving surface

[0025] 16: First reflective surface

[0026] 17: Second reflective surface

[0027] Q: Urine

[0028] 100: Interface

[0029] S1: First light source

[0030] S2: Second light source

[0031] L1: First incident beam

[0032] L2: Second beam

[0033] D1: First light sensor

[0034] D2: Second Light Sensor

[0035] 2: Shell

[0036] 20: Second Accommodation Space

[0037] 21: First light output port

[0038] 22: Second light output port

[0039] 23: Start button

[0040] 24: Display Unit

[0041] 25: Power button

[0042] 26:Outer wall

[0043] 261: Perforation

[0044] 27: First receiving slot

[0045] 28: Second receiving slot

[0046] 30: Empty Space

[0047] 31: Input Unit

[0048] 32: Detection Unit

[0049] 33: Processing Unit

[0050] θ: Preset tilt angle

[0051] θ1: First included angle

[0052] θ2: Second included angle

[0053] A, B, C: Urine glucose characteristic curves Detailed Implementation

[0054] Please see Figure 1A and Figure 1B These are first and second perspective views of the prism body of the urine glucose concentration measuring device of the present invention. The prism body 1 includes a first accommodating space 10, a first light-transmitting surface 11, a second light-transmitting surface 12, a third light-transmitting surface 13, and a light-emitting surface 14. The first accommodating space 10 contains urine Q. An interface 100 is formed on the bottom surface of the first accommodating space 10. The first light-transmitting surface 11 is formed on the first side surface of the first accommodating space 10. The second light-transmitting surface 12 is formed on the second side surface of the first accommodating space 10 opposite to the first light-transmitting surface 11. The third light-transmitting surface 13 is disposed opposite to the interface 100. The light-emitting surface 14 is disposed corresponding to the interface 100.

[0055] Please see Figures 2A to 2D This is a perspective view, exploded view, top view, and cross-sectional view of the urine glucose concentration measuring device of the present invention. The urine glucose concentration measuring device 3 includes a prism body 1 and a housing 2. The housing 2 includes a second accommodating space 20, a first light-emitting port 21, and a second light-emitting port 22. The second accommodating space 20 accommodates the prism body 1. The first light-emitting port 21 has a first aperture and is correspondingly arranged with the light-emitting surface 14 of the prism body 1. The second light-emitting port 22 has a second aperture and is correspondingly arranged with the first light-emitting port 21, wherein the first aperture is less than or equal to the second aperture. Furthermore, in one embodiment of the present invention, the first light-emitting port 21 is in the shape of a single slit, and the first light-emitting port 21 and the second light-emitting port 22 form a trumpet-shaped opening, that is, the aperture size of the first light-emitting port 21 to the second light-emitting port 22 gradually increases from narrow to wide. In addition, the housing 2 further includes a start button 23, a display unit 24, and a power button 25. The start button 23 controls the on / off state of the first light source S1, the first light sensor D1, the second light source S2, the second light sensor D2, and the display unit 24. The display unit 24 displays the measurement data of urine, that is, the urine glucose concentration value. The power button 25 is electrically connected to the power supply unit (not shown), which is electrically connected to the display unit 24, the start button 25, and each light source to supply power to these components.

[0056] Please see Figure 2B The device for measuring urine glucose concentration further includes an outer wall 26, a first light source S1, a first light sensor D1, a second light source S2, and a second light sensor D2. The outer wall 26 is attached to a surface of the housing 2 and the light incident surface 15 of the prism body 1 (e.g., Figure 1A As shown), a first receiving space 10 is formed in the prism body 1. Furthermore, since the first receiving space 10 of the prism body 1 is an open space, in one embodiment of the present invention, the outer wall 26 is attached to the light-incident surface 15 of the prism body 1, making the first receiving space 10 a space capable of holding urine. In other embodiments of the present invention, the first receiving space 10 of the prism body 1 can also be a closed space capable of holding urine. A first light source S1 is disposed on the outer wall 26, below the interface 100, and generates a first incident light beam L1. In other words, the first incident light beam L1 is incident on the interface 100 from bottom to top. A first light sensor D1 is disposed on the second light-out port 22 to receive the first incident light beam L1, wherein the surface of the housing 2 is parallel to the second light-out port 22. The housing 2 further includes a first receiving groove 27 and a second receiving groove 28, and a second light source S2 is disposed in the first receiving groove 27 of the housing 2 to generate a second incident light beam L2. The second light sensor D2 is disposed in the second receiving groove 28 of the housing 2 to receive the second incident light beam L2, wherein the first receiving groove 27 and the second receiving groove 28 are arranged in parallel.

[0057] Please see Figure 2D The light-emitting surface 14 of the prism body 1 and the bottom surface of the second accommodating space 20 of the housing 2 form a hollow space 30, which is a space for light transmission. After the first incident light beam L1 exits the interior of the prism body 1 through the light-emitting surface 14 of the prism body 1, it exits the interior of the housing 2 through the hollow space 30, the first light-emitting port 21 and the second light-emitting port 22, and is directed towards the first light sensor D1 set on the second light-emitting port 22.

[0058] Please see Figure 3A and Figure 3B This is a schematic diagram of light reflection and light penetration through a liquid for the device for measuring urine glucose concentration according to the present invention. Figure 3A As shown, and in conjunction with reference Figure 2D After the first incident light beam L1 generated by the first light source S1 enters the interior of the prism body 1, it is directed toward the interface 100 and reflected by the interface 100 to the light-emitting surface 14. The light beam then exits the interior of the prism body 1 through the light-emitting surface 14 and passes through the first light-emitting port 21 and the second light-emitting port 22 to the first light sensor D1 located at the light-emitting port 22 of the housing 2, thereby measuring the refractive index of the urine Q. Figure 3B As shown, and in conjunction with reference Figure 2B After the second incident beam L2 generated by the second light source S2 enters the interior of the prism body, it is directed towards the first light-transmitting surface 11. After exiting the interior of the prism body from the first light-transmitting surface 11, it enters the first accommodating space 10, penetrates the urine Q within the first accommodating space 10, and then enters the second light-transmitting surface 12. After entering the interior of the prism body from the second light-transmitting surface 12, it is directed towards the third light-transmitting surface 13. After exiting the interior of the prism body from the third light-transmitting surface 13, it enters the second light sensor D2 disposed within the housing 2. The concentration of the urine Q is calculated by measuring the first incident beam L1 passing through the light-emitting surface 14, the first light-emitting port 21, and the second light-emitting port 22 using the first light sensor D1. The absorbance of the urine Q is calculated by measuring the second incident beam D2 passing through the third light-transmitting surface 13 using the second light sensor D2.

[0059] As described above, based on basic optical principles, light undergoes refraction and reflection when it enters different media. Therefore, by placing the first light sensor D1 at the second light outlet 22 of the housing, the concentration of urine Q can be calculated by measuring the brightness (refractive intensity) of the reflected first incident beam L1. Furthermore, since the urine Q absorbs light energy after passing through it, reducing its brightness, a second light sensor D2 is placed on the housing. By measuring the brightness of the received second incident beam L2, the absorbance of urine Q can be calculated.

[0060] like Figure 1A , Figure 1B and Figure 3A As shown, the prism body 1 further includes a light-incident surface 15 adjacent to the interface 100. In one embodiment of the present invention, the light-incident surface 15 is perpendicularly adjacent to the interface 100. The first incident beam L1 of the first light source S1 enters the interior of the prism body 1 through the light-incident surface 15 and then shines on the interface 100.

[0061] like Figure 1A , Figure 1B and Figure 3B As shown, the third light-transmitting surface 13 is adjacent to the light-incident surface 15. In one embodiment of the present invention, the third light-transmitting surface 13 is perpendicularly adjacent to the light-incident surface 15, and the second incident beam L2 enters the interior of the prism body 1 from the third light-transmitting surface 13 and then shines on the first light-transmitting surface 11.

[0062] like Figure 3A As shown, the light-emitting surface 14 is adjacent to the third light-transmitting surface 13, and the light-emitting surface 14 and the light-incident surface 15 are respectively adjacent to opposite sides of the third light-transmitting surface 13. An angle θ is formed between the light-emitting surface 14 and the third light-transmitting surface 13, and this angle θ is an obtuse angle, between 105 degrees and 165 degrees. In a preferred embodiment of the present invention, the angle θ is 135 degrees.

[0063] Please see Figure 3B The prism body 1 further includes a first reflective surface 16 and a second reflective surface 17. When the second incident beam L2 generated by the second light source S2 enters the interior of the prism body 1, the second incident beam L2 first shines on the first reflective surface 16, and after being reflected by the first reflective surface 16, it shines on the first light-transmitting surface 11. After exiting the interior of the prism body 1 from the first light-transmitting surface 11, it enters the first accommodating space 10 and penetrates the urine Q in the first accommodating space 10. Then it shines on the second light-transmitting surface 12, and after entering the interior of the prism body 1 from the second light-transmitting surface 12, it shines on the second reflective surface 17. After being reflected by the second reflective surface 17, it shines on the third light-transmitting surface 13, and then exits the interior of the prism body 1 from the third light-transmitting surface 13 and enters the second light sensor D2 disposed in the housing 2. The first reflective surface 16 is adjacent to the first light-transmitting surface 11 and has a first included angle θ1 between them. The first included angle θ1 is an acute angle, between 15 degrees and 75 degrees. In a preferred embodiment of the present invention, the first included angle θ1 is preferably 45 degrees. The first reflective surface 16 is set at the first included angle θ1 according to the angle at which the second incident light beam L2 is incident on the third light-transmitting surface 13. The second reflective surface 17 is adjacent to the second light-transmitting surface 12 and has a second included angle θ2 between them. The second included angle θ2 is an acute angle, between 15 degrees and 75 degrees. In a preferred embodiment of the present invention, the second included angle θ2 is preferably 45 degrees. The second reflective surface 17 is set at the second included angle θ2 according to the angle at which the second incident light beam L2 is reflected after being incident on the first reflective surface 16.

[0064] Please refer to the following: Figure 3A and Figure 3B In this embodiment of the invention, the first reflective surface 16 and the second reflective surface 17 are respectively triangular blocks arranged around the two sides of the first accommodating space 10, and form the first accommodating space 10 with the interface 100 (bottom surface) of the first accommodating space 10. It should be noted that although the first accommodating space 10 cannot be formed into a closed space by the first triangular block, the second triangular block and another protrusion in the drawings of the invention, in fact the prism body 1 is disposed in the second accommodating space 20 of the housing 2, and the light-incident surface 15 is in contact with the wall surface inside the second accommodating space 20 of the housing 2, so that the first accommodating space 10 of the prism body 1 forms a closed space to accommodate urine Q.

[0065] Please see Figures 4A to 4C This is a schematic diagram of the reflected light from the device for measuring urine glucose concentration according to the present invention. As shown in the figure, the light-emitting surface 14 of the prism body 1 is located on one side opposite the light-incident surface 15. The first incident light beam L1 reflected by the interface 100 passes through the light-emitting surface 14, the first light-emitting port 21 and the second light-emitting port 22 of the housing 2, and then enters the first light sensor D1. According to optical principles, in order to measure the first incident light beam L1 passing through the light-emitting surface 14, the first light-emitting port 21 and the second light-emitting port 22, the setting angle and area of ​​the light-emitting surface 14 and the apertures of the first light-emitting port 21 and the second light-emitting port 22 must be configured. Furthermore, according to Snell's Law, given the refractive index of the medium of the prism body 1 and the incident angle of the first incident light beam L1 at the interface 100, the refractive index of the medium of the urine Q can be calculated based on the range of reflection angles generated by the first incident light beam L1 when passing through the interface 100 with different refractive indices (different solutions). The higher the refractive index of urine Q, the more light is refracted, and the less light is reflected. Therefore, the first light sensor D1 receives less reflected light from the first incident beam L1 (e.g., Figure 4A and Figure 4B As shown), therefore, based on the range of refractive indices of the medium into which the first incident beam L1 is incident on different urine fluids Q, and the corresponding range of reflection angles, the default tilt angle θ and area of ​​the light-emitting surface 14 can be defined and configured, and the aperture sizes of the first light-emitting port 21 and the second light-emitting port 22 can be calculated. That is, the preset tilt angle θ and preset area of ​​the light-emitting surface 14, as well as the aperture sizes of the first light-emitting port 21 and the second light-emitting port 22, are set according to the reflection angle generated by the first incident beam L1 from the interface 100, and the preset tilt angle θ is set with the interface 100 as the reference angle.

[0066] In a preferred embodiment of the present invention, a first light source S1 is disposed in a through hole 261 in the outer wall 26 of the housing 2, and is positioned corresponding to the normal position of the center of the light-incident surface 15 of the prism body 1, so that the first incident light beam L1 can be evenly incident on the light-incident surface 15. A first light sensor D1 is disposed on the second light-out port 22 of the housing 2, thereby being able to evenly receive the first incident light beam L1 passing through the light-out surface 14, the first light-out port 21, and the second light-out port 22.

[0067] Please see Figures 5A to 5D This is a schematic diagram of the first incident light beam incident on the device for measuring urine glucose concentration according to the present invention. In practice, in order to measure the reflected light after the first incident light beam L1 is incident on the prism body 1, and to measure the light after the second light beam L2 passes through the urine Q, in embodiments of the present invention, the first light source S1 and the second light source S2 include halogen lamps, gas lamps, lasers, LEDs, or other light-emitting elements. Regarding the reflected light after the first incident light beam L1 is incident on the prism body 1, since the light beams generated by these light sources are emitted outwards at 360 degrees, the light rays incident on the prism body 1 in the first half can be distinguished as follows: Figures 5A to 5D The light from the four parts. (For example...) Figure 5A As shown, when the first incident beam L1 is incident on the interface 100 of the prism body 1, its reflected light is emitted towards the light-emitting surface 14 and then incident on the first light sensor D1. Figure 5B As shown, when the first incident beam L1 is incident on the prism body 1, since there is no surface or interface 100 in the incident direction that causes it to reflect, the incident beam is emitted directly towards the outside of the prism body 1. Figure 5C As shown, when the first incident beam L1 is incident on the light-emitting surface 14 of the prism body 1, since the incident angle of the first incident beam L1 is exactly the angle of total internal reflection formed with the light-emitting surface 14, the reflected first incident beam L1 enters in other directions of the prism body 1 and exits towards the outside of the prism body 1. Figure 5D As shown, when the first incident beam L1 is incident on the third light-transmitting surface 13 of the prism body 1, the angle of the reflected light it produces does not point towards the light-emitting surface 14, but rather it is emitted outward in other directions of the prism body 1. Accordingly, the first light sensor D1, which is located at the second light-emitting port 22, only receives the reflected light incident on the interface 100 of the prism body 1.

[0068] Please see Figure 6This diagram illustrates the relationship between urine concentration and absorbance in this invention. Since the urine concentration Q causes differences in absorbance, the urine concentration Q can be calculated by measuring its absorbance. According to the Beer-Lambert law, when a parallel ray is incident perpendicularly on a sample, the absorbing material in the sample absorbs some of the photon energy, reducing the intensity of the transmitted light. The absorbed energy (A) is positively correlated with the sample absorption coefficient (α), optical path length (sample length) (L), and concentration (c), as shown below:

[0069] A=αLc

[0070] The absorbed energy can be considered as absorbance (A). Therefore, when light passes through a sample, some of its energy is absorbed by the sample, and the remaining light passes through the sample. Thus, the absorbance of the sample can be calculated from the energy difference between the incident light (I0) and the transmitted light (I). The absorbance is defined as follows:

[0071]

[0072] Furthermore, after the second incident beam L2 is incident on the first reflective surface 16, it is reflected by the first reflective surface 16 and transmitted to the urine Q. The urine Q absorbs some of the photon energy, weakening the intensity of the transmitted light. It is then reflected by the second reflective surface 17 to the second light sensor D2. The higher the concentration of urine Q, the more light energy is absorbed, and therefore the weaker the intensity of the transmitted light. The absorbance can be determined from the ratio of the light source intensity to the transmitted light, and thus the concentration of urine Q can be calculated.

[0073] Please see Figure 7 This diagram illustrates the relationship between urinary glucose concentration and absorbance and refractive index according to the present invention. Because different concentrations of urine Q result in different light absorption ratios, different urine concentrations will have different urinary glucose characteristic curves A, B, and C. The present invention measures the absorbance and refractive index of urine, determines the urinary glucose characteristic curves A, B, and C by measuring the absorbance, and then calculates the corresponding urinary glucose concentration by measuring the refractive index of light entering urine Q, i.e., the refractive index of the urine, and based on the refractive index and the urinary glucose characteristic curves A, B, and C determined by the absorbance. In one embodiment of the present invention, the housing 2 further includes a storage module (not shown) that stores a database containing multiple urinary glucose characteristic curves for the processing module to quickly calculate and compare the corresponding urinary glucose concentration.

[0074] For example, the absorbance of urine glucose characteristic curve A is a%, the absorbance of urine glucose characteristic curve B is b%, and the absorbance of urine glucose characteristic curve C is c%, where a>b>c. The urine refractive index measured by this invention is n. Therefore, when calculating urine glucose concentration, urine glucose characteristic curve A can be determined first based on the absorbance a% calculated above, and then the corresponding urine glucose concentration x (mg / dl) can be calculated based on urine glucose characteristic curve A and the calculated refractive index n.

[0075] Please see Figure 8 This is a block diagram of the urine glucose concentration measuring device of the present invention. The urine glucose concentration measuring device 3 further includes an input unit 31, a detection unit 32, and a processing unit 33. The input unit 31 is electrically connected to the power supply unit and includes a first light source S1 and a second light source S2, generating a start signal to trigger the first light source S1 and the second light source S2. The detection unit 32 includes a first light sensor D1 and a second light sensor D2, electrically connected to the power supply unit and the input unit 31, respectively receiving and sensing the first incident light beam L1 and the second incident light beam L2 emitted by the first light source S1 and the second light source S2, which generate transmitted, reflected, and refracted light through the interface 100 between the urine and the prism body 1. The processing unit 33 is electrically connected to the detection unit 32 and the display unit 24, and calculates the refractive index based on the first incident light beam L1 received by the first light sensor D1, and calculates the absorbance based on the second incident light beam L2 received by the second light sensor D2, and displays the calculation results on the display unit 24.

[0076] In one embodiment of the present invention, the prism body 1 is made of glass, plastic, or other light-transmitting materials. The interface 100, first light-transmitting surface 11, second light-transmitting surface 12, third light-transmitting surface 13, light-emitting surface 14, light-incident surface 15, first reflective surface 16, and second reflective surface 17 of the prism body 1 can be smooth surfaces, rough surfaces, coated surfaces, blocking surfaces, or surfaces with other processing methods. The prism body 1 is processed by methods including grinding, bonding, molding, injection molding, or other processing methods.

[0077] In one embodiment of the present invention, the first light sensor D1 and the second light sensor D2 include a photodetector diode, a photodetector diode array, a spectrometer, a CCD sensor, or other photosensitive elements.

[0078] In summary, the urine glucose concentration measuring device of this invention can simultaneously or individually detect the refractive and absorbance of light. By combining the absorption and refraction characteristics, it can analyze urine glucose concentration without the need for a focusing element as a light source, thus simplifying optical path alignment. Furthermore, the device eliminates the need for lenses or eyepieces, reducing the overall size of the structure. Additionally, it eliminates the need for filters or polarizers, lowering production costs. Moreover, the device offers several advantages for urine glucose detection, including eliminating the need for chemical reagents and test strips, reducing human error through instrument-based interpretation, avoiding oxygen and humidity degradation issues through optical detection, increasing detection frequency, and facilitating data collection for statistical analysis and real-time health management.

Claims

1. A device for measuring urine glucose concentration, characterized in that, Include: A single prism body, comprising: A first accommodating space, for holding a urine; An interface is formed on the bottom surface of the first accommodating space; A first light-transmitting surface is formed on a first side of the first accommodating space; A second light-transmitting surface is formed on a second side surface of the first accommodating space, opposite to the first light-transmitting surface; A third light-transmitting surface is set relative to the interface. One surface that produces light should be set to correspond to the interface. Upon entering the light surface, it is adjacent to the interface; and A housing comprising: A second accommodating space for accommodating the prism body; A first light-emitting port has a first aperture and is disposed corresponding to the light-emitting surface of the prism body; A second light-emitting port has a second aperture and is configured to correspond to the first light-emitting port; Wherein the first caliber is less than or equal to the second caliber; When a first incident beam is directed toward the light-incident surface of the prism body and enters the interior of the prism body, the first incident beam is further directed toward the interface and reflected by the interface to the light-exiting surface, and then exits the interior of the prism body through the light-exiting surface and exits the interior of the housing through the first light-exiting port and the second light-exiting port. When a second incident light beam is directed toward the third light-transmitting surface of the prism body and enters the interior of the prism body, the second incident light beam is further directed toward the first light-transmitting surface, and after exiting the interior of the prism body from the first light-transmitting surface, it enters the first receiving space, penetrates the urine in the first receiving space, and then enters the second light-transmitting surface. After entering the interior of the prism body from the second light-transmitting surface, it is directed toward the third light-transmitting surface and exits the interior of the prism body from the third light-transmitting surface. One of the devices for measuring urine glucose concentration calculates a refractive index based on the first incident light beam emitted from inside the housing, and calculates an absorbance based on the second incident light beam emitted from inside the prism body, and calculates a urine glucose concentration based on the refractive index and the absorbance.

2. The device for measuring urine glucose concentration as described in claim 1, characterized in that, The third light-transmitting surface is adjacent to the light-incident surface, and the second incident light beam enters the interior of the prism body from the third light-transmitting surface and then shines on the first light-transmitting surface.

3. The device for measuring urine glucose concentration as described in claim 2, characterized in that, The light-emitting surface is adjacent to the third light-transmitting surface, and the light-emitting surface and the light-incident surface are respectively adjacent to opposite sides of the third light-transmitting surface.

4. The device for measuring urine glucose concentration as described in claim 3, characterized in that, Also includes: A first reflective surface, adjacent to the first light-transmitting surface; A second reflective surface, adjacent to the second light-transmitting surface; When the second incident light beam enters the interior of the prism body, it first strikes the first reflective surface, and after being reflected by the first reflective surface, it strikes the first light-transmitting surface. After exiting the interior of the prism body from the first light-transmitting surface, it enters the first accommodating space, penetrates the urine in the first accommodating space, and then strikes the second light-transmitting surface. After entering the interior of the prism body from the second light-transmitting surface, it first strikes the second reflective surface, and after being reflected by the second reflective surface, it strikes the third light-transmitting surface, and then exits the interior of the prism body from the third light-transmitting surface.

5. The device for measuring urine glucose concentration as described in claim 1, characterized in that, The first light-emitting port and the second light-emitting port form a funnel-shaped opening.

6. The device for measuring urine glucose concentration as described in claim 1, characterized in that, The first light outlet is a single slit.

7. The device for measuring urine glucose concentration as described in claim 1, characterized in that, Also includes: An outer wall, which fits a surface of the housing and the light-incident surface of the prism body, and has a perforation; A first light source is disposed in the perforation of the outer wall and corresponds to the light-incident surface of the prism body, and generates the first incident beam. A first light sensor is disposed on the second light outlet to receive the first incident light beam; wherein the surface of the housing is parallel to the second light outlet; A second light source, disposed in a first receiving groove of the housing, generates the second incident light beam; and A second light sensor is disposed in a second receiving groove of the housing to receive the second incident light beam; The first receiving groove and the second receiving groove are arranged in parallel.

8. The device for measuring urine glucose concentration as described in claim 7, characterized in that, The light-emitting surface and a bottom surface of the second accommodating space form a hollow space. After the first incident light beam exits the interior of the prism body through the light-emitting surface, it exits the interior of the housing through the hollow space, the first light-emitting port, and the second light-emitting port.

9. The device for measuring urine glucose concentration as described in claim 8, characterized in that, The housing contains: One start button activates at least one light source; A display unit shows a measurement result of the urine; and A power button is electrically connected to a power supply unit, which is electrically connected to the display unit and the start button.

10. The device for measuring urine glucose concentration as described in claim 9, characterized in that, It also includes a processing unit electrically connected to the power supply unit, the first light sensor and the second light sensor, which calculates the refractive index based on the first incident light beam received by the first light sensor and calculates the absorbance based on the second incident light beam received by the second light sensor, and the processing unit further calculates the urinary glucose concentration based on the refractive index and the absorbance.

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