Small urine high-speed collection analyzer

Abstract

The utility model discloses a small urine high-speed collection analyzer which comprises a reagent bin structure and a printing structure which are packaged between an upper cover and a lower cover, the reagent bin structure comprises a sliding rail seat, a rack reagent bin, a reagent strip, a receiving plate, an LED lamp, a cover plate and a motor, the rack reagent bin is installed on the sliding rail seat and is in sliding fit with the sliding rail seat, the motor drives the rack reagent bin to move, the reagent strip is placed in the rack reagent bin, a light path seat is installed above the rack reagent bin, and the light path seat is connected with the light path seat. A green LED lamp and a red LED lamp are mounted on the light path seat, a receiving plate is arranged above the light path seat and receives light rays emitted from the reagent strip, and a cover plate covers the other end above the rack reagent bin. By reducing the structure of the reagent bin, the size of the whole urine analyzer is greatly reduced, and the urine analyzer is small and convenient to carry. A high-speed acquisition circuit is used for acquiring signals reflected by two light sources respectively, and the same effect as that of two light path acquisition circuits is achieved.

Description

Technical Field

[0001] This utility model relates to a urine analyzer for laboratory use, specifically a small high-speed urine collection and analysis instrument. Background Technology

[0002] The urine analyzer determines the results based on the color changes produced by the reaction of several specific components in the urine with the test strip. By identifying the color changes in the reaction reagent area, the analyzer calculates and outputs the test results.

[0003] Existing urine analyzers are relatively large, making them inconvenient to carry and use. Currently, optical signal acquisition includes single-channel and multi-channel signal acquisition. Single-channel signal acquisition mainly consists of photoelectric monitoring, conversion circuit, sampling and amplification circuit, and data processing module. Multi-channel signal acquisition, on the other hand, requires the same resources for each signal acquisition, increasing the number of components, size, and cost. Summary of the Invention

[0004] To address the issues of bulky and inconveniently portable urine analyzers, this invention provides a small, high-speed urine collection and analysis instrument.

[0005] This utility model provides the following technical solution:

[0006] A small high-speed urine collection and analysis instrument, comprising a reagent compartment structure and a printing structure, which are encapsulated between an upper cover and a lower cover;

[0007] The reagent compartment structure includes a slide rail base, a rack reagent compartment, a reagent strip, a receiving plate, LED lights, a cover plate, and a motor. The rack reagent compartment is mounted on the slide rail base and slides in conjunction with the slide rail base. The motor drives the rack reagent compartment to move. The reagent strip is placed inside the rack reagent compartment. A light path base is installed at one end of the rack reagent compartment. A green LED light and a red LED light are installed on the light path base. A receiving plate is set above the light path base. The receiving plate receives the light emitted back from the reagent strip. A cover plate is placed at the other end of the rack reagent compartment.

[0008] A rack is provided on one side of the rack reagent compartment, and a long groove is provided on the other side of the rack reagent compartment for accommodating reagent strips;

[0009] The printing structure includes a paper tray cover, a printer, a paper tray box, and buttons. The paper tray box contains printing paper, and the printer is installed inside the paper tray box and the paper tray cover.

[0010] Furthermore, a gear is connected to the shaft end of the motor, and the motor drives the gear to mesh with the rack, thereby driving the rack reagent chamber to move back and forth.

[0011] Furthermore, the slide rail seat has a long track, and the bottom of the rack reagent compartment has a groove that mates with the long track.

[0012] Furthermore, a main control board, buttons, and a battery are installed between the upper and lower covers. The buttons are installed on the upper cover, with the main control board aligned below them. The main control board and the battery are installed inside the lower cover.

[0013] The main control board has a main control chip, which is an STM32F429IGT6. The main control chip transmits signals to the red LED and green LED through the traffic light channel on the main control chip. A photodiode controls the alternating flashing of the traffic lights onto the reagent strip.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By reducing the size of the reagent compartment, the overall size of the urine analyzer is greatly reduced, making it a compact and portable instrument.

[0016] 2. The main control chip controls the red and green lights to flash alternately, and the alternating flashing signal is transmitted to the amplification circuit. This eliminates the need for a signal amplification and acquisition circuit, reduces the number of components, lowers production costs, and increases system stability. Attached Figure Description

[0017] Figure 1 This is a view of the exterior of the present invention.

[0018] Figure 2 This is an exploded view of the present invention.

[0019] Figure 3 This is a schematic diagram of the reagent compartment structure of this utility model.

[0020] Figure 4 This is an enlarged schematic diagram of the reagent compartment driven by the motor of this utility model.

[0021] Figure 5 This is a schematic diagram of the present invention.

[0022] Figure 6 This is the pin diagram of the main control chip (STM32F429IGT6) of this utility model.

[0023] Figure 7 This is a schematic diagram showing the relationship between the amplifier circuit and the high-speed ADC of this utility model.

[0024] In the diagram: 1. Top cover; 2. Paper tray cover; 3. Screen bracket; 4. Display screen; 5. Receiver board; 6. Green LED light; 7. Red LED light; 8. Optical path holder; 9. Main control board; 10. Printer; 11. Printing paper; 12. Paper tray box; 13. Button; 14. Cover plate; 15. Rack and pinion reagent compartment; 151. Rack; 152. Long groove; 153. Slide groove; 16. Motor; 161. Gear; 17. Slide rail holder; 171. Long track; 18. Battery; 19. Bottom cover; 20. Reagent strip. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 The present invention relates to a small high-speed urine collection and analysis instrument, comprising a reagent compartment structure and a printing structure, wherein the reagent compartment structure and the printing structure are encapsulated between an upper cover 1 and a lower cover 19.

[0027] The reagent compartment structure includes a slide rail base 17, a rack and pinion reagent compartment 15, a reagent strip 20, a receiving plate 5, LED lights, a cover plate 14, and a motor 16. The rack and pinion reagent compartment 15 is mounted on the slide rail base 17 and slides in conjunction with the slide rail base 17. The motor 16 drives the rack and pinion reagent compartment 15 to move, allowing it to slide normally on the slide rail base 17. The reagent strip 20 is placed inside the rack and pinion reagent compartment 15. A light path base 8 is installed at one end of the rack and pinion reagent compartment 15, and a green LED light 6 and a red LED light 7 are installed on the light path base 8. A receiving plate 5 is set above the light path base 8 to receive the light emitted from the reagent strip 20. The other end of the rack and pinion reagent compartment 15 is covered by a cover plate 14 to prevent external light from interfering with the test.

[0028] A rack 151 is provided on one side of the rack reagent compartment 15, and a long groove 152 is provided on the other side of the rack reagent compartment 15 for accommodating reagent strips 20.

[0029] The shaft end of the motor 16 is connected to the gear 161. The motor 16 drives the gear 161 to mesh with the rack 151, thereby driving the rack reagent chamber 15 to move back and forth.

[0030] The slide rail seat 17 has a long track 171 inside, and the bottom of the rack reagent compartment 15 has a groove 153 that matches the long track 171.

[0031] Test strip 20 reacts after coming into full contact with urine, and is used to detect the content of various components in urine.

[0032] The display screen 4 is installed inside the top cover 1, and the display screen 4 is supported by the screen bracket 3.

[0033] The printing structure includes a paper tray cover 2, a printer 10, a paper tray box 12, and a button 13. The paper tray box 12 contains printing paper 11, and the printer 10 is located inside the paper tray box 12 and the paper tray cover 2.

[0034] The main control board 9, button 13 and battery 18 are also installed between the upper cover 1 and the lower cover 19. Button 13 is installed on the upper cover 1, and the lower part of button 13 is aligned with the main control board 9. The main control board 9 and battery 18 are installed inside the lower cover 19.

[0035] Figure 6 As shown, the main control board 9 has a main control chip, which is an STM32F429IGT6.

[0036] The signal is transmitted to the red LED 7 and green LED 6 through the traffic light channel control on the main control chip. A photodiode controls the alternating flashing of the traffic lights to illuminate the reagent strip 20. The alternating flashing of the traffic lights replaces the use of two centralized acquisition circuits, which simplifies the circuit, improves stability, and reduces costs.

[0037] Figure 5 As shown, the main control chip data processing flow is as follows:

[0038] 1. Begin;

[0039] 2. Has data acquisition ended? If no, the I / O output will show a high or low level signal; if yes, data acquisition has ended and the I / O output will be turned off.

[0040] 3. Input the signal to the traffic light control circuit and transmit it to the red LED 7 and the green LED 6;

[0041] 4. The flashing of the traffic lights in the traffic light control circuit is controlled by a photodiode, and the signal is amplified and processed by an amplifier circuit before being sent to a high-speed ADC.

[0042] 5. If the high-speed ADC acquires the voltage signal, the acquisition ends, data analysis and processing are performed, and the data is saved and the process ends; otherwise, feedback is sent to the high-speed ADC.

[0043] Figure 7 The diagram shows the relationship between the amplifier circuit and the high-speed ADC. The amplifier circuit includes a cross-group amplifier and a non-inverting amplifier.

[0044] The cross-group amplifier uses a portion of the LTC728XT14 / R6 to convert the current of D1 into a voltage signal. The weak voltage signal is then amplified by the non-inverting amplifier LTC728XT14 / R6 until it can be stably recognized by the subsequent MCP3221A5T-I / OT. Note that the amplification factor should be adjusted according to the actual value. The signal is then converted into a digital quantity by the high-speed ADC of model MCP3221A5T-I / OT and transmitted to the main control chip STM32 via the IIC communication protocol.

[0045] The photodiode model number is OSD9-IM.

[0046] This invention uses a high-speed acquisition circuit to acquire signals reflected from two light sources, and through data processing and analysis, achieves the same effect as a two-path optical acquisition system, simplifying the circuit design and improving the overall system stability.

[0047] The red / green lights flash alternately. Part of the integrated operational amplifier can be used as a constant current source for the lights, and another part can be used as a voltage amplifier. The red / green lights shine on the reagent strip and reflect the light to the photodiode, which converts it into a weak electrical signal. The subsequent stage amplifies and processes the weak signal and sends it to the STM32 via a high-speed analog-to-digital converter (ADC). The STM32 can control the switching on and off of the red / green lights and the switching time, so that a single signal acquisition circuit can be used to acquire and convert both red and green light signals.

[0048] Working principle: The reagent strip contains reactants that react with components in urine, causing a color change. An LED light shines on the reagent strip; because the color change occurs, and the concentration of the analyte in the urine varies, the intensity of the color change and the reflectivity also differ, resulting in varying light intensities. This allows for the sequential determination of the concentration of each component in the urine.

[0049] Verification Summary:

[0050] The performance of the instrument in this invention meets the performance requirements of industry standards.

[0051] This utility model has the following advantages:

[0052] 1. By reducing the size of the reagent compartment, the overall size of the urine analyzer is greatly reduced, making it a compact and portable instrument with an overall size of 178*87*46mm.

[0053] 2. The main control chip controls the red and green lights to flash alternately. The alternating flashing signal is transmitted to the amplification circuit through the photodiode, eliminating the need for a signal amplification and acquisition circuit, reducing the number of components, lowering production costs, and increasing system stability.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A compact urine high-speed collection analyzer, characterized by: The reagent bin structure and the printing structure are encapsulated between the upper cover (1) and the lower cover (19); The reagent bin structure comprises a sliding rail seat (17), a rack reagent bin (15), a reagent strip (20), a receiving plate (5), an LED lamp, a cover plate (14) and a motor (16), the rack reagent bin (15) is installed on the sliding rail seat (17), the rack reagent bin (15) is in sliding fit with the sliding rail seat (17), the motor (16) drives the rack reagent bin (15) to move, the reagent strip (20) is placed in the rack reagent bin (15), a light path seat (8) is installed at one end above the rack reagent bin (15), the green LED lamp (6) and the red LED lamp (7) are installed on the light path seat (8), the receiving plate (5) is arranged above the light path seat (8), the receiving plate (5) receives the light emitted from the reagent strip (20), the other end above the rack reagent bin (15) is covered with the cover plate (14); One side of the rack reagent bin (15) is provided with a rack (151), and the other side of the rack reagent bin (15) is provided with a long groove (152) for accommodating the reagent strip (20); The printing structure comprises a paper bin cover (2), a printer (10), a paper bin box (12) and a key (13), the paper bin box (12) is provided with the printing paper (11), and the paper bin box (12) and the paper bin cover (2) are provided with the printer (10).

2. The compact urine high-speed collection analyzer according to claim 1, characterized in that: The main control board (9), the key (13) and the battery (18) are further installed between the upper cover (1) and the lower cover (19), the key (13) is installed on the upper cover (1), the key (13) is aligned below the main control board (9), and the main control board (9) and the battery (18) are installed in the lower cover (19).

3. The compact urine high-speed collection analyzer according to claim 2, characterized in that: The main control board (9) is provided with a main control chip, and the main control chip adopts STM32F429IGT6.

4. The compact urine high-speed collection analyzer according to claim 1, characterized in that: The shaft end of the motor (16) is connected with a gear (161), the motor (16) drives the gear (161) to engage with the rack (151), and drives the rack reagent bin (15) to move forward and backward.

5. The compact, high-speed urine collection and analysis device of claim 1, wherein: The sliding rail seat (17) is provided with a long rail (171), and the bottom of the rack reagent bin (15) is provided with a sliding groove (153) matched with the long rail (171).

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