CN220340227U

CN220340227U - Biochemical instrument

Info

Publication number: CN220340227U
Application number: CN202321860704.7U
Authority: CN
Inventors: 陈文强; 葛敏东; 洪金和; 朱志良; 周琦杰
Original assignee: Ningbo Xinchuang Future Biotechnology Co ltd
Current assignee: Ningbo Xinchuang Future Biotechnology Co ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-01-12
Anticipated expiration: 2033-07-14

Abstract

The utility model provides a biochemical analyzer: the device comprises a shell, a chip bin, a chip driving assembly and an optical detection assembly, wherein the chip bin is arranged in the shell and is used for accommodating a microfluidic chip; the optical detection assembly comprises a light source and an optical signal detector, wherein the light source is arranged above the detection position and is used for emitting light rays to the sample on the detection position, and the optical signal detector is arranged below the detection position and is used for receiving the light rays passing through the sample on the detection position; the light outlet of the light source is connected with a condenser, and the condenser is positioned above the detection position and is used for gathering light beams emitted by the light source; the light beam emitted by the light source can be concentrated by connecting the light-emitting opening of the light source with the condenser, so that the light intensity emitted by the light source is improved, the precision of the light passing through the sample is conveniently and accurately controlled, and the precision of the biochemical detection result is further improved.

Description

Biochemical instrument

Technical Field

The utility model relates to the technical field of microfluidic biochemical detection, in particular to a biochemical analyzer.

Background

The biochemical analyzer is an instrument for measuring a certain specific chemical component in body fluid by adopting a photoelectric colorimetric principle, is a means for medical detection of human body fluid or blood in hospitals, can provide a very favorable information basis for clinical diagnosis and treatment of diseases and whether the diseases are in a healthy state, and has a vital role in the fields of clinical biochemistry, clinical immunology, blood cell technology and the like.

The current common biochemical analyzer generally comprises a chip bin, a chip driving assembly and an optical detection assembly, wherein the chip bin is used for placing a microfluidic chip, the chip driving assembly drives the microfluidic chip to circumferentially rotate, so that a sample in the microfluidic chip reacts with a reagent, the sample in the chip rotates to a detection position, and finally, the biochemical detection value of the sample is detected through the optical detection assembly.

The optical detection assembly generally comprises a light source and an optical signal detector, wherein light rays emitted by the light source pass through a sample on a detection position, are received by the optical signal detector, are processed by the optical signal processor and are transmitted to the display device. However, the light emitted by the light source may be partially scattered, so that the light intensity is weakened, which is difficult to control accurately and affects the accuracy of the biochemical detection result.

Disclosure of Invention

The utility model aims to solve the technical problems that: overcomes the defects of the prior art and provides a biochemical analyzer which can improve the intensity and the precision of a light source and further improve the precision of a detection result.

The technical proposal of the utility model is to provide a biochemical analyzer with the following structure:

the device comprises a shell, a chip bin, a chip driving assembly and an optical detection assembly, wherein the chip bin is arranged in the shell and is used for accommodating a microfluidic chip, the chip driving assembly is used for driving the microfluidic chip in the chip bin to rotate, and the optical detection assembly is used for detecting a sample on the microfluidic chip; the optical detection assembly comprises a light source and an optical signal detector, wherein the light source is arranged above the detection position and is used for emitting light rays to the sample on the detection position, and the optical signal detector is arranged below the detection position and is used for receiving the light rays passing through the sample on the detection position; the light outlet of the light source is connected with a condenser, and the condenser is positioned above the detection position and is used for gathering light beams emitted by the light source.

After adopting above structure, the biochemical analyzer of the utility model has the following advantages compared with the prior art:

the light beam emitted by the light source can be concentrated by connecting the light-emitting opening of the light source with the condenser, so that the light intensity emitted by the light source is improved, the precision of the light passing through the sample is conveniently and accurately controlled, and the precision of the biochemical detection result is further improved.

Preferably, a collimator is connected to the optical signal detector at a position directly below the detection position, and the collimator is used for reducing scattered light entering the optical signal detector. The collimator can convert scattered light passing through the sample into parallel light, so that the detection of the optical signal detector is facilitated, and the accuracy is improved.

Preferably, the optical detection assembly further comprises an optical signal processor, a display screen is arranged on the shell, and the optical signal processor is electrically connected with the optical signal detector and the display screen respectively; the optical signal processor is used for receiving the signals transmitted by the optical signal detector and transmitting the processed data to the display screen. The display screen can accurately display detection data, so that a worker can conveniently acquire detection results.

Preferably, a maintenance channel is arranged in the shell, one end of the maintenance channel extends to the light source, the other end of the maintenance channel extends out of the shell and forms an opening, and a cover plate is connected at the opening in an openable way. After the arrangement, the maintenance of the subsequent light source is convenient, the biochemical analyzer is not required to be completely disassembled when the light source is replaced, and the light source can be replaced by a maintenance tool through the maintenance channel only by detaching the cover plate on the opening of the maintenance channel.

Preferably, the chip driving assembly comprises a transmission seat, a first driving motor and a second driving motor; the driving seat is used for being connected with a driving part of the microfluidic chip, the output end of the first driving motor is connected with the bottom of the driving seat and used for driving the driving seat to circumferentially rotate, and the output end of the second driving motor is in transmission connection with the first driving motor and used for driving the first driving motor and the driving seat to vertically move up and down. The second driving motor can drive the first driving motor and the transmission seat to vertically move upwards, so that the transmission seat is connected with the driving part of the microfluidic chip, the first driving motor can drive the transmission seat and the microfluidic chip to circumferentially rotate, samples in the microfluidic chip react with reagents, and the samples in the microfluidic chip are controlled to rotate to a detection position, so that the optical detection assembly can conveniently detect the samples.

Preferably, a tray for accommodating the microfluidic chip is slidably connected in the chip bin, a through hole penetrating through the upper end and the lower end of the tray is formed in the tray, and the through hole is used for allowing the transmission seat to penetrate through and is connected with the driving part of the microfluidic chip.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a longitudinal cross-sectional view of the present utility model.

Fig. 3 is a transverse cross-sectional view of the present utility model.

Reference numerals illustrate:

1. the device comprises a shell, 11, a display screen, 12, a maintenance channel, 13, a cover plate, 2, a chip bin, 21, a tray, 22, a through hole, 3, a chip driving assembly, 31, a transmission seat, 32, a first driving motor, 4, an optical detection assembly, 41, a light source, 42, an optical signal detector, 43, a condenser, 44 and a collimator.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the specific examples.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model, while the terms "first", "second", etc. are merely names for distinguishing the respective components, and have no major and minor relationships, and thus should not be construed as limiting the present utility model.

As shown in fig. 1, 2 and 3, the present utility model discloses a biochemical analyzer:

the device comprises a shell 1, a chip bin 2, a chip driving assembly 3 and an optical detection assembly 4, wherein the chip bin 2, the chip driving assembly 3 and the optical detection assembly 4 are arranged in the shell 1, the chip bin 2 is used for accommodating a microfluidic chip, the chip driving assembly 3 is used for driving the microfluidic chip in the chip bin 2 to rotate, and the optical detection assembly 4 is used for detecting a sample on the microfluidic chip.

The optical detection assembly 4 comprises a light source 41, an optical signal detector 42 and an optical signal processor (not shown in the figure), wherein the light source 41 is arranged above the detection position and is used for emitting light to the sample on the detection position, and the optical signal detector 42 is arranged below the detection position and is used for receiving the light passing through the sample on the detection position; a light collector 43 is connected to the light outlet of the light source 41, and the light collector 43 is located above the detection position and is used for collecting the light beam emitted by the light source 41; the shell 1 is provided with a display screen 11, and the optical signal processor is respectively and electrically connected with the optical signal detector 42 and the display screen 11; the optical signal processor is configured to receive the signal transmitted by the optical signal detector 42, and transmit the processed data to the display screen 11; the display screen 11 can accurately display detection data, so that a worker can conveniently acquire detection results.

The light beam emitted by the light source 41 can be concentrated by connecting the light collector 43 at the light outlet of the light source 41, so that not only the light intensity emitted by the light source 41 is improved, but also the precision of the light passing through the sample is conveniently and accurately controlled, and the precision of the biochemical detection result is further improved.

A collimator 44 is connected to the optical signal detector 42 at a position directly below the detection position, and the collimator 44 is used to reduce scattered light entering the optical signal detector 42. The collimator 44 converts scattered light passing through the sample into parallel light for detection by the optical signal detector 42 to improve accuracy. The light source 41 may be a halogen lamp, and the condenser 43 and the collimator 44 are all of the prior art, which will not be described in detail herein.

The casing 1 is provided with a maintenance channel 12, one end of the maintenance channel 12 extends to the light source 41, the other end extends to the outside of the casing 1 and forms an opening, and the opening is connected with the cover plate 13 through a screw. After the arrangement, the subsequent maintenance of the light source 41 is facilitated, the light source 41 can be replaced by a maintenance tool through the maintenance channel 12 without completely disassembling the biochemical analyzer when the light source 41 is replaced, and only the cover plate 13 on the opening of the maintenance channel 12 is required to be disassembled.

The chip driving assembly 3 comprises a transmission seat 31, a first driving motor 32 and a second driving motor (not shown in the figure); the transmission seat 31 is used for connecting a driving part of the microfluidic chip, the output end of the first driving motor 32 is connected with the bottom of the transmission seat 31 and used for driving the transmission seat 31 to rotate circumferentially, and the output end of the second driving motor is connected with the first driving motor 32 in a transmission way and used for driving the first driving motor 32 and the transmission seat 31 to move vertically up and down; the first driving motor 32 may be a stepping motor, and the second driving motor may be a linear motor. The second driving motor can drive the first driving motor 32 and the transmission seat 31 to vertically move upwards, so that the transmission seat 31 is connected with the driving part of the microfluidic chip, the first driving motor 32 can drive the transmission seat 31 and the microfluidic chip to circumferentially rotate, so that samples in the microfluidic chip react with reagents, and the samples in the microfluidic chip are controlled to rotate to a detection position, and the optical detection assembly 4 can conveniently detect the samples.

The chip bin 2 is slidably connected with a tray 21 for accommodating the microfluidic chip, a through hole 22 penetrating through the upper end and the lower end of the tray 21 is arranged on the tray 21, and the through hole 22 is used for allowing a transmission seat 31 to penetrate through and is connected with a driving part of the microfluidic chip.

The foregoing is merely illustrative of the present utility model, and the scope of the present utility model is not limited thereto, and any changes or substitutions that may be easily contemplated by those skilled in the art within the scope of the present utility model should be included within the scope of the present utility model, and the scope of the present utility model shall be defined by the appended claims.

Claims

1. The biochemical analyzer comprises a shell (1), and a chip bin (2), a chip driving assembly (3) and an optical detection assembly (4) which are arranged in the shell (1), wherein the chip bin (2) is used for accommodating a microfluidic chip, the chip driving assembly (3) is used for driving the microfluidic chip in the chip bin (2) to rotate, and the optical detection assembly (4) is used for detecting a sample on the microfluidic chip; the method is characterized in that: the optical detection assembly (4) comprises a light source (41) and an optical signal detector (42), wherein the light source (41) is arranged above a detection position and is used for emitting light rays to a sample on the detection position, and the optical signal detector (42) is arranged below the detection position and is used for receiving the light rays passing through the sample on the detection position; the light outlet of the light source (41) is connected with a condenser (43), and the condenser (43) is positioned above the detection position and is used for collecting light beams emitted by the light source (41).

2. The biochemical analyzer according to claim 1, wherein: a collimator (44) is connected to the optical signal detector (42) at a position right below the detection position, and the collimator (44) is used for reducing scattered light entering the optical signal detector (42).

3. The biochemical analyzer according to claim 1 or 2, characterized in that: the optical detection assembly (4) further comprises an optical signal processor, the shell (1) is provided with a display screen (11), and the optical signal processor is electrically connected with the optical signal detector (42) and the display screen (11) respectively; the optical signal processor is used for receiving the signal transmitted by the optical signal detector (42) and transmitting the processed data to the display screen (11).

4. The biochemical analyzer according to claim 1, wherein: a maintenance channel (12) is arranged in the shell (1), one end of the maintenance channel (12) extends to the light source (41), the other end of the maintenance channel extends to the outside of the shell (1) and forms an opening, and a cover plate (13) is connected at the opening in an openable mode.

5. The biochemical analyzer according to claim 1, wherein: the chip driving assembly (3) comprises a transmission seat (31), a first driving motor (32) and a second driving motor; the driving seat (31) is used for being connected with a driving part of the microfluidic chip, the output end of the first driving motor (32) is connected with the bottom of the driving seat (31) and used for driving the driving seat (31) to circumferentially rotate, and the output end of the second driving motor is connected with the first driving motor (32) in a transmission manner and used for driving the first driving motor (32) and the driving seat (31) to vertically move up and down.

6. The biochemical analyzer according to claim 5, wherein: the chip bin (2) is slidably connected with a tray (21) for accommodating the microfluidic chip, a through hole (22) penetrating through the upper end and the lower end of the tray (21) is formed in the tray (21), and the through hole (22) is used for allowing a transmission seat (31) to penetrate through and is connected with a driving part of the microfluidic chip.