Photoelectric device and detection method of blood lipid analyzer

Abstract

The application provides a photoelectric device and a detection method of a blood lipid analyzer, wherein the photoelectric device comprises a lower assembly, a middle assembly and an upper assembly, a first light transmission hole is arranged on the fixing support, the lower assembly is provided with a main printed circuit board and an emitting light source arranged on the main printed circuit board, the middle assembly is provided with a sub printed circuit board and an ambient light receiving device arranged on the sub printed circuit board, the main printed circuit board and the sub printed circuit board are respectively connected to two sides of the first light transmission hole, and the emitting light source and the ambient light receiving device are arranged corresponding to the first light transmission hole, and the ambient light receiving device is used for receiving ambient light intensity in the blood lipid analyzer before and after the emitting light source is turned on. The application sets the ambient light receiving device, can obtain corresponding ambient light source influence factors and light source aging factors, thus can make necessary correction on the detection and operation process of the test strip, and thus improves the test strip detection accuracy of the blood lipid analyzer.

Description

Technical Field

[0001] This invention belongs to the field of blood lipid detection and analysis technology, specifically relating to a photoelectric device and detection method for a blood lipid analyzer. Background Technology

[0002] As is well known, existing portable blood lipid analyzers insert a blood-containing test strip cartridge into the analyzer. After starting the instrument, three light sources emit light sequentially onto the surface of the test strip, which is then reflected sequentially to the light source receiving device. After calculation, the screen displays the blood's biochemical indicators. However, the photoelectric stacked structure only has three light sources and three light source receiving devices. It does not consider the interference of ambient light when the light source is not turned on, the difference in light intensity caused by the offset of the welding position of the optical path components, the aging of the light source, the weakening of the light intensity of the light source and the light source receiving device due to the through holes in the optical path, and the impact of dust accumulation on the surface of the light source receiving device on the measurement accuracy. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a photoelectric device and detection method for a blood lipid analyzer, which is equipped with an ambient light receiving device that can obtain the corresponding ambient light source influence factor and light source aging factor by detecting the real-time ambient light intensity change, thereby enabling necessary corrections to the test strip detection and calculation process, thereby improving the test strip detection accuracy of the blood lipid analyzer and extending the service life of the blood lipid analyzer.

[0004] To address the aforementioned problems, this invention provides a photoelectric device for a lipid analyzer, comprising: a lower assembly, a middle assembly, and an upper assembly sequentially stacked on a fixed support. The fixed support has a first light-transmitting hole. The lower assembly has a main printed circuit board and an emitting light source disposed thereon. The middle assembly has a sub-printed circuit board and an ambient light receiving device disposed thereon. The main printed circuit board and the sub-printed circuit board are respectively connected to both sides of the first light-transmitting hole, and the emitting light source and the ambient light receiving device are arranged corresponding to the first light-transmitting hole. The ambient light receiving device is used to receive the ambient light intensity inside the lipid analyzer before and after the emitting light source is turned on.

[0005] Preferably, a first elastic seal is sandwiched between the main printed circuit board and the fixed bracket, the first elastic seal being disposed around the emitting light source; and / or, a second elastic seal is sandwiched between the sub-printed circuit board and the fixed bracket, the second elastic seal being disposed around the ambient light receiving device.

[0006] Preferably, the sub-printed circuit board is further provided with a reflected light receiving device, the reflected light receiving device and the ambient light receiving device are respectively disposed on opposite sides of the sub-printed circuit board, and the sub-printed circuit board is further provided with a second light-transmitting hole, the second light-transmitting hole passing through the opposite sides of the sub-printed circuit board and correspondingly disposed with the first light-transmitting hole to form the same light path.

[0007] Preferably, the upper component includes a cartridge for holding test strips, and the lipid analyzer further includes a cartridge fixing bracket. The cartridge is connected to the cartridge fixing bracket, and the cartridge fixing bracket has a third light-transmitting hole. A filter is disposed in the third light-transmitting hole, and the third light-transmitting hole, the second light-transmitting hole, and the first light-transmitting hole form a light path.

[0008] Preferably, the filter wavelength is λ, 614nm≤λ≤634nm; and / or, the transmittance of the filter is not less than 93%.

[0009] Preferably, a third elastic seal is provided between the card holder fixing bracket and the side of the sub-printed circuit board away from the fixing bracket.

[0010] Preferably, the emitting light source has three sets, the ambient light receiving device has three sets, and the reflected light receiving device has three sets, with one of the three sets of emitting light sources, one of the three sets of ambient light receiving devices, and one of the three sets of reflected light receiving devices forming a corresponding arrangement of the same optical path.

[0011] Preferably, any one of the first elastic seal, the second elastic seal, and the third elastic seal includes a sealing base and three through holes formed on the sealing base.

[0012] The present invention also provides a photoelectric device detection method for a lipid analyzer, wherein the photoelectric device of the lipid analyzer is the aforementioned photoelectric device of the lipid analyzer, comprising:

[0013] The real-time ambient light intensity acquisition step involves acquiring the first real-time ambient light intensity Ic1 inside the blood lipid analyzer via an ambient light receiving device before the emitting light source is turned on; and acquiring the second real-time ambient light intensity Ic2 inside the blood lipid analyzer via an ambient light receiving device after the emitting light source is turned on.

[0014] The step of obtaining the light source aging factor involves acquiring the preset ambient light intensity value of the lipid analyzer, and calculating the aging factor A of the emitted light source based on the first real-time ambient light intensity Ic1, the second real-time ambient light intensity Ic2, and the preset ambient light intensity value. f ;

[0015] The test result output steps, combined with the aging factor Af Acquire and output the test results of the test strip.

[0016] Preferably, before the step of outputting the detection result, the method further includes:

[0017] The step of obtaining the environmental light source influence factor is to obtain the preset background light intensity Ic0 of the blood lipid analyzer, and calculate the environmental light source influence factor Ef based on the first real-time ambient light intensity Ic1 and the preset background light intensity Ic0.

[0018] The test result output step also incorporates the ambient light source influence factor Ef to obtain and output the test results of the test strip.

[0019] This invention provides a photoelectric device and detection method for a blood lipid analyzer. Based on the prior art, the blood lipid analyzer is equipped with an ambient light receiving device, which is used to detect the corresponding real-time ambient light intensity before and after the emission light source is turned on. By detecting the changes in the real-time ambient light intensity, the corresponding ambient light source influence factor and light source aging factor can be obtained, thereby enabling necessary corrections to the test strip detection and calculation process, thus improving the test strip detection accuracy of the blood lipid analyzer and extending the service life of the blood lipid analyzer. Attached Figure Description

[0020] Figure 1 This is an exploded structural diagram of the lipid analyzer according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram (cross-section) of the internal structure of the lipid analyzer according to an embodiment of the present invention;

[0022] Figure 3 for Figure 2 A top view of the middle layer components, specifically showing the side of the sub-printed circuit board facing the upper layer components;

[0023] Figure 4 for Figure 3 Left side view;

[0024] Figure 5 for Figure 2 The bottom view of the middle layer components shows the side of the sub-printed circuit board facing the lower layer components.

[0025] Figure 6 This is a schematic diagram of the photoelectric device detection method of a blood lipid analyzer according to another embodiment of the present invention.

[0026] The reference numerals in the attached figures are as follows:

[0027] 1. Lower layer assembly; 11. Main printed circuit board; 12. Emitting light source; 2. Middle layer assembly; 21. Sub-printed circuit board; 22. Ambient light receiver; 23. Reflected light receiver; 24. Second light-transmitting hole; 3. Upper layer assembly; 31. Card holder; 32. Test strip; 4. Fixing bracket; 41. First light-transmitting hole; 51. First elastic seal; 52. Second elastic seal; 53. Third elastic seal; 6. Card holder fixing bracket; 61. Filter. Detailed Implementation

[0028] See also Figures 1 to 6 As shown in the embodiment of the present invention, a blood lipid analyzer is provided, comprising: a lower component 1, a middle component 2, and an upper component 3 stacked sequentially on a fixed support 4. The fixed support 4 has a first light-transmitting hole 41. The lower component 1 has a main printed circuit board 11 and an emitting light source 12 disposed thereon. The middle component 2 has a sub-printed circuit board 21 and an ambient light receiving device 22 disposed thereon. The main printed circuit board 11 and the sub-printed circuit board 21 are respectively connected to both sides of the first light-transmitting hole 41, and the emitting light source 12 and the ambient light receiving device 22 are disposed corresponding to the first light-transmitting hole 41. The ambient light receiving device 22 is used to receive the ambient light intensity inside the blood lipid analyzer before and after the emitting light source 12 is turned on. In this technical solution, an ambient light receiving device 22 is added to the blood lipid analyzer based on the existing technology. It is used to detect the corresponding real-time ambient light intensity before and after the emission light source 12 is turned on. In this way, the corresponding ambient light source influence factor and light source aging factor can be obtained by detecting the changes in the real-time ambient light intensity. This allows for necessary corrections to the test strip detection and calculation process, thereby improving the test strip detection accuracy of the blood lipid analyzer and extending the service life of the blood lipid analyzer.

[0029] Preferably, a first elastic seal 51 is sandwiched between the main printed circuit board 11 and the fixed bracket 4, and the first elastic seal 51 is arranged around the emitting light source 12; and / or, a second elastic seal 52 is sandwiched between the sub-printed circuit board 21 and the fixed bracket 4, and the second elastic seal 52 is arranged around the ambient light receiving device 22. In this technical solution, the arrangement of the first elastic seal 51 and the second elastic seal 52 places the corresponding emitting light source 12 and ambient light receiving device 22 in a more independent and sealed space, effectively preventing interference from light sources on other optical paths, which is beneficial to further improving the accuracy of the blood lipid analyzer's detection results. It is also understood that the first elastic seal 51 and the second elastic seal 52 can effectively prevent external dust from entering the corresponding optical path, thereby preventing dust contamination of the optical path and causing deviation in the detection results.

[0030] Furthermore, the sub-printed circuit board 21 is also provided with a reflected light receiving device 23. The reflected light receiving device 23 and the ambient light receiving device 22 are respectively disposed on opposite sides of the sub-printed circuit board 21. The sub-printed circuit board 21 is also constructed with a second light-transmitting hole 24, which passes through the opposite sides of the sub-printed circuit board 21 and is correspondingly disposed with the first light-transmitting hole 41 to form the same optical path. Further still, the upper component 3 includes a card holder 31 for mounting the test strip 32. The blood lipid analyzer also includes a card holder fixing bracket 6. The card holder 31 is connected to the card holder fixing bracket 6. The card holder fixing bracket 6 is constructed with a third light-transmitting hole, and a filter 61 is disposed in the third light-transmitting hole. The third light-transmitting hole, the second light-transmitting hole 24, and the first light-transmitting hole 41 form an optical path. For details, please refer to... Figure 2 The structure shown in the figure illustrates the path of the light emitted by the light source 12. Specifically, the light emitted by the light source 12 passes through the first light-transmitting hole 41, the second light-transmitting hole 24, the third light-transmitting hole, and the filter 61 disposed thereon to reach the test strip 32. After being reflected by the test strip 32, the light passes through the filter 61 and the third light-transmitting hole in sequence to reach the reflected light receiving device 23, thereby measuring the value of the reflected light spectrum. The detection result is then obtained through analysis and calculation in the prior art. At the same time, since the ambient light receiving device 22 is added in this invention, the detection result obtained by the aforementioned analysis and calculation can be corrected by using the measured light source aging factor and the ambient light source influence factor. Therefore, the accuracy of the detection result can be improved, thereby ensuring the extension of the service life of the blood lipid analyzer.

[0031] Preferably, the filtering wavelength of the filter 61 is λ, 614nm≤λ≤634nm; and / or, the transmittance of the filter 61 is not less than 93%, which can reduce the loss caused by light passing through the filter twice and further improve the detection accuracy.

[0032] In some embodiments, a third elastic seal 53 is sandwiched between the card holder fixing bracket 6 and the side of the sub-printed circuit board 21 away from the fixing bracket 4. The purpose of setting the third elastic seal 53 is the same as that of setting the first elastic seal 51 and the second elastic seal 52, and will not be described in detail here.

[0033] As a specific implementation method, such as Figures 1 to 5 As shown, the emission light source 12 has three sets, the ambient light receiving device 22 has three sets, and the reflected light receiving device 23 has three sets. One of the three sets of emission light sources 12, one of the three sets of ambient light receiving devices 22, and one of the three sets of reflected light receiving devices 23 form a corresponding arrangement of the same optical path. That is, the blood lipid analyzer has three independent and non-interfering detection optical paths at the same time, so that the same test strip can be detected three times simultaneously, thereby detecting three different sets of biochemical parameters.

[0034] In one specific implementation, any one of the first elastic seal 51, the second elastic seal 52, and the third elastic seal 53 includes a sealing base and three through holes constructed on the sealing base. In this technical solution, one elastic seal can be used to correspond to three optical paths at the same time, without the need to set a separate corresponding seal for each optical path, thus making the installation simpler. The first elastic seal 51, the second elastic seal 52, and the third elastic seal 53 can be formed by rubber gaskets, for example.

[0035] According to an embodiment of the present invention, see Figure 6 As shown, a test strip detection method is also provided, using the aforementioned lipid analyzer, including:

[0036] The real-time ambient light intensity acquisition step involves acquiring the first real-time ambient light intensity Ic1 inside the blood lipid analyzer via the ambient light receiving device 22 before the emitting light source 12 is turned on; and acquiring the second real-time ambient light intensity Ic2 inside the blood lipid analyzer via the ambient light receiving device 22 after the emitting light source 12 is turned on.

[0037] The step of obtaining the light source aging factor involves acquiring the preset ambient light intensity value of the blood lipid analyzer, and calculating the aging factor A of the emitting light source 12 based on the first real-time ambient light intensity Ic1, the second real-time ambient light intensity Ic2, and the preset ambient light intensity value. f;

[0038] The test result output steps, combined with the aging factor A f Acquire and output the test results of the test strip.

[0039] Furthermore, prior to the step of outputting the detection result, the following steps are also included:

[0040] The step of obtaining the environmental light source influence factor is to obtain the preset background light intensity Ic0 of the blood lipid analyzer, and calculate the environmental light source influence factor Ef based on the first real-time ambient light intensity Ic1 and the preset background light intensity Ic0.

[0041] The test result output step also incorporates the ambient light source influence factor Ef to obtain and output the test results of the test strip.

[0042] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A method for detecting lipids using a photoelectric device in a blood lipid analyzer, characterized in that, The photoelectric device of the lipid analyzer includes: a lower component (1), a middle component (2), and an upper component (3) stacked sequentially on a fixed bracket (4). The fixed bracket (4) has a first light-transmitting hole (41). The lower component (1) has a main printed circuit board (11) and an emitting light source (12) disposed thereon. The middle component (2) has a sub-printed circuit board (21) and an ambient light receiving device (22) disposed thereon. The main printed circuit board (11) and the sub-printed circuit board (21) are respectively connected to the two sides of the first light-transmitting hole (41), and the emitting light source (12) and the ambient light receiving device (22) correspond to the first light-transmitting hole (41). A light-transmitting hole (41) is provided, and the ambient light receiving device (22) is used to receive the ambient light intensity inside the blood lipid analyzer before and after the emission light source (12) is turned on; a reflected light receiving device (23) is also provided on the sub-printed circuit board (21), and the reflected light receiving device (23) and the ambient light receiving device (22) are respectively provided on opposite sides of the sub-printed circuit board (21). A second light-transmitting hole (24) is also constructed on the sub-printed circuit board (21), and the second light-transmitting hole (24) passes through the opposite sides of the sub-printed circuit board (21) and is correspondingly provided with the first light-transmitting hole (41) to form the same light path; the method includes the following steps: The real-time ambient light intensity acquisition step involves acquiring the first real-time ambient light intensity Ic1 in the blood lipid analyzer through the ambient light receiving device (22) before the emission light source (12) is turned on; and acquiring the second real-time ambient light intensity Ic2 in the blood lipid analyzer through the ambient light receiving device (22) after the emission light source (12) is turned on. The step of obtaining the light source aging factor is to obtain the preset ambient light intensity value of the blood lipid analyzer, and calculate the aging factor Af of the emitting light source (12) based on the first real-time ambient light intensity Ic1, the second real-time ambient light intensity Ic2 and the preset ambient light intensity value. The test result output step involves obtaining and outputting the test results of the test strip by combining the aging factor Af. Before the step of outputting the detection results, the following is also included: The step of obtaining the environmental light source influence factor is to obtain the preset background light intensity Ic0 of the blood lipid analyzer, and calculate the environmental light source influence factor Ef based on the first real-time ambient light intensity Ic1 and the preset background light intensity Ic0. The test result output step also incorporates the ambient light source Ef influence factor to obtain and output the test results of the test strip.

2. The method according to claim 1, characterized in that, A first elastic seal (51) is sandwiched between the main printed circuit board (11) and the fixed bracket (4), the first elastic seal (51) being arranged around the emitting light source (12); and / or, a second elastic seal (52) is sandwiched between the sub-printed circuit board (21) and the fixed bracket (4), the second elastic seal (52) being arranged around the ambient light receiving device (22).

3. The method according to claim 2, characterized in that, The upper component (3) includes a cartridge (31) for mounting test strips (32). The lipid analyzer also includes a cartridge fixing bracket (6). The cartridge (31) is connected to the cartridge fixing bracket (6). The cartridge fixing bracket (6) has a third light-transmitting hole. A filter (61) is provided in the third light-transmitting hole. The third light-transmitting hole, the second light-transmitting hole (24), and the first light-transmitting hole (41) form a light path.

4. The method according to claim 3, characterized in that, The filter wavelength of the filter (61) is λ, 614nm≤λ≤634nm; and / or, the transmittance of the filter (61) is not less than 93%.

5. The method according to claim 3, characterized in that, A third elastic seal (53) is sandwiched between the card holder fixing bracket (6) and the side of the sub-printed circuit board (21) away from the fixing bracket (4).

6. The method according to claim 5, characterized in that, The emitting light source (12) has three sets, the ambient light receiving device (22) has three sets, and the reflected light receiving device (23) has three sets. One of the three sets of emitting light sources (12) is configured to form the same optical path as one of the three sets of ambient light receiving devices (22) and one of the three sets of reflected light receiving devices (23).

7. The method according to claim 6, characterized in that, Any one of the first elastic seal (51), the second elastic seal (52), and the third elastic seal (53) includes a sealing base and three through holes constructed on the sealing base.

Images