A high-precision detection module suitable for a portable urine analyzer

Abstract

The application relates to the technical field of medical devices, in particular to a high-precision detection module suitable for a portable urine analyzer, which comprises a base, two light-emitting units, an emission plate, a first wire, a detection plate, a second wire, a receiving detection plate and a photosensitive receiving chip, the base is provided with two diffuse reflection cavities, and the light-emitting unit comprises an IR patch LED and an RGB patch LED; the IR patch LED and the two RGB patch LEDs in the application are all patch LEDs, the conventional straight-inserted LED is changed into a patch LED, the problem that the detection module has certain differences and the detection precision of the urine analyzer is affected due to the fact that the straight-inserted LED axial line two-section assembly structure of the existing optical system makes it difficult to guarantee that the straight-inserted LED lampwick light spot coaxiality is completely consistent is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, and particularly relates to a high-precision detection module suitable for a portable urine analyzer. BACKGROUND

[0002] Urine testing is one of the three routine projects of modern medical clinical testing, and plays a very important role in the diagnosis of diseases. The dry-chemical urine analyzer is a special instrument for clinical urine testing matched with dry-chemical test paper. The dry-chemical urine analyzer determines the urine analysis test paper soaked with urine by using the reflection photoelectric colorimetric method, and converts the determination result into a semi-quantitative result of the corresponding project.

[0003] At present, the optical system of the urine analyzer mostly adopts a straight insertion type LED axial line two-section assembly structure. In the assembly process, there is a certain fitting gap due to the design itself, and the coaxiality of the light spot of the straight insertion type LED lamp core is difficult to guarantee completely consistent, so that the detection module has certain difference, thereby affecting the detection precision of the urine analyzer. SUMMARY

[0004] The present application relates to the technical field of medical devices, and particularly relates to a high-precision detection module suitable for a portable urine analyzer.

[0005] To achieve the above-mentioned purpose, the present application provides a high-precision detection module suitable for a portable urine analyzer, which comprises a base, two light-emitting units, an emission plate, a first wire, a detection plate, a second wire, a receiving detection plate and a photosensitive receiving chip.

[0006] The base has two diffuse reflection cavities, and the two diffuse reflection cavities are located on both sides of the base. The two light-emitting units are respectively located inside the two diffuse reflection cavities. The light-emitting unit comprises an IR patch LED and an RGB patch LED. The IR patch LED is fixedly connected with the base and located inside the base. The RGB patch LED is fixedly connected with the base and located inside the base. The emission plate is fixedly connected with the base and located on the side edge of the base. The first wire is connected with the emission plate and located on the side edge of the emission plate. The detection plate is fixedly connected with the base and located on the side edge of the base. The second wire is connected with the detection plate and located on the side edge of the detection plate. The receiving detection plate is connected with the first wire and the second wire and located on the top of the base. The photosensitive receiving chip is fixedly connected with the base and located between the base and the receiving detection plate.

[0007] The high-precision detection module suitable for the portable urine analyzer further comprises a glass cover plate; the glass cover plate is fixedly connected with the base and located at the bottom of the base.

[0008] The included angle between the emission optical axis of the two IR patch LEDs and the base axis is 37°.

[0009] The inner wall of the diffuse reflection cavity has ground glass granular texture.

[0010] The photosensitive receiving chip is parallel to the bottom surface of the base.

[0011] The high-precision detection module suitable for the portable urine analyzer comprises two IR patch LEDs and two RGB patch LEDs, the two light emitting units are symmetrically distributed with the photosensitive receiving chip as the axis, the test paper is placed below the base during use, the two IR patch LEDs and the two RGB patch LEDs emit light, the light is irradiated on the test paper through the diffuse reflection cavity, and the test paper is detected by using the reflected light photoelectric colorimetry; the IR patch LED and the two RGB patch LEDs are patch LEDs, the diffuse reflection cavity is arranged, the light spot is uniformly spread on the test paper, the conventional straight insertion type LED is replaced by the patch LED, the volume is effectively reduced, the volume of the portable urine analyzer is reduced, the existing optical system adopts the straight insertion type LED axis two-section assembly structure, the coaxiality of the straight insertion type LED light spot is difficult to guarantee completely consistent, the detection module has certain difference, and the detection precision of the urine analyzer is affected. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced.

[0013] Figure 1 is a structural schematic diagram of the high-precision detection module suitable for the portable urine analyzer.

[0014] Figure 2 is an exploded view of the high-precision detection module suitable for the portable urine analyzer.

[0015] Figure 3 is a light path principle schematic diagram of the high-precision detection module suitable for the portable urine analyzer.

[0016] 1-base, 2-emitting unit, 3-emitting plate, 4-first wire, 5-detection plate, 6-second wire, 7-receiving detection plate, 8-photosensitive receiving chip, 9-glass cover plate, 11-diffuse reflection cavity, 21-IR patch LED, 22-RGB patch LED. DETAILED DESCRIPTION

[0017] Please refer to Figures 1-3 wherein, Figure 1 is a structure diagram of a high-precision detection module suitable for a portable urine analyzer, Figure 2 is an exploded view of a high-precision detection module suitable for a portable urine analyzer, Figure 3 is a schematic diagram of the light path principle of a high-precision detection module suitable for a portable urine analyzer.

[0018] The application provides a high-precision detection module suitable for a portable urine analyzer, comprising a base 1, two emitting units 2, an emitting plate 3, a first wire 4, a detection plate 5, a second wire 6, a receiving detection plate 7 and a photosensitive receiving chip 8. The above-mentioned scheme solves the problem that the existing optical system adopts a straight-in type LED axis line two-section type assembly structure, so that the coaxiality of the straight-in type LED lamp core light spot is difficult to guarantee completely consistent, thereby causing certain difference of the detection module, and affecting the detection precision of the urine analyzer.

[0019] For this specific embodiment, the base 1 has two diffuse reflection cavities 11, two of which are located on both sides of the base 1; two light emitting units 2 are respectively located inside the two diffuse reflection cavities 11, the light emitting unit 2 includes an IR patch LED 21 and an RGB patch LED 22, the IR patch LED 21 and the base 1 are fixedly connected and located inside the base 1, the RGB patch LED 22 and the base 1 are fixedly connected and located inside the base 1; the emission plate 3 and the base 1 are fixedly connected and located on the side of the base 1; the first wire 4 is connected with the emission plate 3 and located on the side of the emission plate 3; the detection plate 5 and the base 1 are fixedly connected and located on the side of the base 1; the second wire 6 is connected with the detection plate 5 and located on the side of the detection plate 5; the receiving detection plate 7 is connected with the first wire 4 and the second wire 6 respectively and located on the top of the base 1; the photosensitive receiving chip 8 and the base 1 are fixedly connected and located between the base 1 and the receiving detection plate 7. Two IR patch LEDs 21 and two RGB patch LEDs 22 are patch type lamp beads, and two light emitting units 2 are symmetrically distributed with the photosensitive receiving chip 8 as the axis; when in use, the test paper is placed below the base 1, two IR patch LEDs 21 and two RGB patch LEDs 22 emit light, and the light irradiates on the test paper through the diffuse reflection cavity 11, and the test paper is detected by using the reflected light photoelectric colorimetry; the IR patch LED 21 and the two RGB patch LEDs 22 of the present application are all patch type lamp beads, by setting the diffuse reflection cavity 11, the light spot is uniformly spread on the test paper strip, and at the same time, because the conventional straight insertion type LED is replaced by the patch LED, the volume is effectively reduced, which is beneficial to the volume reduction of the portable urine analyzer, solves the problem that the existing optical system adopts the straight insertion type LED axis line two-section type assembly structure, so that the coaxiality of the straight insertion type LED lamp core light spot is difficult to guarantee completely consistent, thereby causing certain difference of the detection module, and affecting the detection precision of the urine analyzer.

[0020] Among them, the high-precision detection module suitable for portable urine analyzer further includes a glass cover plate 9; the glass cover plate 9 and the base 1 are fixedly connected and located at the bottom of the base 1. The glass cover plate 9 can prevent water mist from entering the diffuse reflection cavity 11 to interfere with the detection result.

[0021] Secondly, the included angle formed by the emission axis line of two IR patch LEDs 21 and two RGB patch LEDs 22 and the axis line of the base 1 is 37°.

[0022] At the same time, the inner wall of the diffuse reflection cavity 11 has a frosted granular texture. By arranging the frosted granular texture on the inner wall of the diffuse reflection cavity 11, the emitted light is more uniform.

[0023] In addition, the photosensitive receiving chip 8 is parallel to the bottom surface of the base 1. The photosensitive receiving chip 8 is provided with a photosensitive sensor. By arranging the photosensitive receiving chip 8 to be parallel to the bottom surface of the base 1, uniform light from two places in the 37° symmetric direction of the axis can be received at the same time, so that the stability of the detection result is greatly improved.

[0024] In use, the two IR patch LEDs 21 and the two RGB patch LEDs 22 are patch type lamp beads, and the two light emitting units 2 are symmetrically distributed around the photosensitive receiving chip 8. In use, the test paper is placed below the base 1, the two IR patch LEDs 21 and the two RGB patch LEDs 22 emit light, the light is irradiated onto the test paper through the diffuse reflection cavity 11, and the test paper is detected by using the reflected light photoelectric colorimetry. The glass cover plate 9 is arranged at the bottom of the base 1, and the glass cover plate 9 can prevent water mist from entering the diffuse reflection cavity 11 to interfere with the detection result. By arranging the frosted granular texture on the inner wall of the diffuse reflection cavity 11, the emitted light is more uniform. The included angle between the emission axis of the two IR patch LEDs 21 and the two RGB patch LEDs 22 and the axis of the base 1 is 37°, and the photosensitive receiving chip 8 is parallel to the bottom surface of the base 1. Uniform light from two places in the 37° symmetric direction of the axis can be received at the same time, so that the stability of the detection result is greatly improved. The IR patch LED 21 and the two RGB patch LEDs 22 of the present application are patch type lamp beads. By arranging the diffuse reflection cavity 11, the light spot is uniformly spread on the test paper strip. At the same time, the conventional straight insertion type LED is replaced by a patch LED, and the volume is effectively reduced, which is beneficial to the volume reduction of the portable urine analyzer. The existing optical system adopts a straight insertion type LED axis two-section assembly structure, so that the coaxiality of the straight insertion type LED light spot is difficult to guarantee completely consistent, thereby causing certain difference in the detection module, and affecting the detection precision of the urine analyzer.

[0025] The above disclosure is only one or more preferred embodiments of the present application, and cannot limit the scope of the rights of the present application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A high-precision detection module suitable for a portable urine analyzer, characterized in that, it comprises a base, two light-emitting units, an emission plate, a first wire, a detection plate, a second wire, a receiving detection plate and a photosensitive receiving chip; the base has two diffuse reflection cavities, and the two diffuse reflection cavities are located on both sides of the base; the two light-emitting units are respectively located inside the two diffuse reflection cavities, the light-emitting unit comprises an IR patch LED and an RGB patch LED, the IR patch LED is fixedly connected with the base and located inside the base, the RGB patch LED is fixedly connected with the base and located inside the base; the emission plate is fixedly connected with the base and located on the side edge of the base; the first wire is connected with the emission plate and located on the side edge of the emission plate; the detection plate is fixedly connected with the base and located on the side edge of the base; the second wire is connected with the detection plate and located on the side edge of the detection plate; the receiving detection plate is connected with the first wire and the second wire respectively and located on the top of the base; the photosensitive receiving chip is fixedly connected with the base and located between the base and the receiving detection plate; the included angle between the emission optical axis of the two IR patch LEDs and the emission optical axis of the two RGB patch LEDs and the axis line of the base is 37°; the inner wall of the diffuse reflection cavity has ground glass granular texture; the photosensitive receiving chip is parallel to the bottom surface of the base.

2. A high precision detection module suitable for use in a portable urine analyzer as claimed in claim 1, characterized in that, The high-precision detection module suitable for the portable urine analyzer further comprises a glass cover plate; the glass cover plate is fixedly connected with the base and located on the bottom of the base.

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