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CN-224231244-U - Device for detecting repeated sample suction precision of pipettor

CN224231244UCN 224231244 UCN224231244 UCN 224231244UCN-224231244-U

Abstract

The application discloses a device for detecting repeated sample suction precision of a pipettor, which comprises a horizontal moving structure, a vertical cantilever structure, a telescopic arm structure and a control part, wherein the upper part of the horizontal moving structure is provided with a moving seat which moves horizontally along the horizontal moving structure, one end of the vertical cantilever structure is fixedly connected with the moving seat, the other end of the vertical cantilever structure is movably connected with the upper part of the telescopic arm structure, the vertical cantilever structure and the horizontal moving structure vertically cross through the moving seat, the lower part of the telescopic arm structure is provided with a connecting part, the connecting part is detachably connected with a pipettor, the connecting part can move up and down along the telescopic arm structure in a telescopic way, the control part is connected with the horizontal moving structure, the moving seat, the vertical cantilever structure, the telescopic arm structure and the connecting part in a signal control way, and the control part can control signals of the horizontal moving structure, the moving seat, the vertical cantilever structure, the telescopic arm structure and the connecting part. The application can efficiently detect whether the sample suction precision of the liquid transfer device meets the precision requirement, and has the advantages of simple structure and simple and convenient operation.

Inventors

  • WU RONG
  • XU ZHENFENG
  • LI JIANFENG
  • WANG GANG

Assignees

  • 无锡莱思生物科技有限公司

Dates

Publication Date
20260512
Application Date
20250519

Claims (8)

  1. 1. The device for detecting repeated sample suction precision of the pipettor is characterized by comprising a horizontal moving structure (1), a vertical cantilever structure (3), a telescopic arm structure (4) and a control part (6), wherein the upper part of the horizontal moving structure (1) is provided with a moving seat (2) which moves horizontally along the horizontal moving structure (1), one end of the vertical cantilever structure (3) is fixedly connected with the moving seat (2), the other end of the vertical cantilever structure (3) is movably connected with the upper part of the telescopic arm structure (4), the vertical cantilever structure (3) and the horizontal moving structure (1) are vertically crossed through the moving seat (2), the lower part of the telescopic arm structure (4) is provided with a connecting part (5), the connecting part (5) is detachably connected with the pipettor, the connecting part (5) can move vertically and telescopically along the telescopic arm structure (4), and the control part (6) is connected with the horizontal moving structure (1), the moving seat (2), the vertical cantilever structure (3), the connecting part (5) can be connected with a control signal control part (6), and the signal control part (4) can be connected with the horizontal moving seat (4).
  2. 2. The device for detecting repeated sample suction precision of a pipette according to claim 1, wherein the horizontal moving structure (1) comprises a horizontal moving frame (11), a horizontal moving track (12) and a horizontal moving power device (13), the horizontal moving power device (13) comprises a horizontal moving driving motor (14) and a horizontal moving belt structure (15), the moving seat (2) is in sliding connection with the horizontal moving track (12), a fixing sheet (21) is arranged at the bottom of the moving seat (2), and the fixing sheet (21) is fixedly connected with the horizontal moving belt structure (15).
  3. 3. The device for detecting repeated sample suction precision of a pipette according to claim 2, wherein the movable base (2) comprises a movable connecting plate (22) at the upper end and a movable clamping groove (23) at the lower end, the movable clamping groove (23) is matched with the horizontal movable track (12), and the movable connecting plate (22) is fixedly connected with the vertical cantilever structure (3).
  4. 4. The device for detecting repeated sample suction precision of a pipette according to claim 3, wherein the horizontal moving track (12) and the moving clamping groove are provided with two paths in a matching way.
  5. 5. The device for detecting repeated sample suction precision of a pipette according to claim 1, wherein the vertical cantilever structure (3) comprises a cantilever frame (31), a cantilever moving track (32) and a cantilever moving power device (33), the cantilever moving power device (33) comprises a cantilever moving driving motor (34) and a cantilever moving belt structure (35), and the cantilever moving track (32) is in sliding connection with the telescopic arm structure (4).
  6. 6. The device for detecting repeated sample suction precision of a pipette according to claim 5, wherein the telescopic arm structure (4) comprises a telescopic frame (41), a telescopic moving clamping groove (42) and a telescopic fixing piece (44) are arranged at the top end of the telescopic frame (41), the telescopic moving clamping groove (42) is matched with the cantilever moving track (32), the telescopic fixing piece (44) is fixedly connected with the cantilever moving belt structure (35), the device further comprises a telescopic power device (43), the moving end of the telescopic power device (43) is provided with the connecting part (5), the connecting part (5) can be connected with the pipette, and the telescopic power device (43) is of a screw motor structure.
  7. 7. The device for detecting repeated sample suction accuracy of a pipette according to claim 6, wherein the cantilever moving rail (32) and the telescopic moving clamping groove (42) are provided with two paths.
  8. 8. The device for detecting repeated sample suction precision of a pipette according to claim 1, wherein the connecting part (5) comprises a connecting plate (51), a plurality of connecting holes (52) are formed in the connecting plate (51), and the connecting plate is detachably connected with the pipette through the connecting holes (52) by using connecting screws.

Description

Device for detecting repeated sample suction precision of pipettor Technical Field The utility model relates to the technical field of fluorescent immunity quantitative analysis, in particular to a device for detecting repeated sample suction precision of a pipettor. Background The fluorescence immunoassay technology utilizes the combination of the high sensitivity of the fluorescence technology and the high specificity of the immunological technology, and provides a detection technology which cannot be replaced by other methods and has a unique style for immunology, clinical histochemistry and laboratory diagnosis. The carrier, automatic fluorescent immunity quantitative analyzer, is used in detecting serum antibody, diagnosing and researching autoimmune disease, tumor immunity, etc. in addition to bacteria, virus, protozoa, worm, fungus, etc. and diagnosing relevant diseases. In the working process of the automatic fluorescence immunoassay quantitative analyzer, a certain amount of sample is sucked by a liquid transfer device and transferred to a reagent card, the quantitative sample is dripped on the reagent card, and then quantitative analysis and detection are carried out. The accuracy of quantitative analysis of the analyzer is directly related to the sample sucking accuracy of the pipette, and particularly after the analyzer is used for the first time and used for multiple times, the sample sucking accuracy of the pipette needs to be detected, namely whether the sucking amount of the pipette is fixed each time and whether the downward detection depth of the pipette is kept at a corresponding depth below the liquid level each time needs to be confirmed, so that the accuracy of quantitative analysis of the analyzer is ensured. Therefore, in practical use of the analyzer, it is often necessary to rapidly detect the sample suction precision of the pipette, so as to ensure the accuracy of quantitative analysis of the analyzer. The application discloses a device for detecting repeated sample suction precision of a liquid transfer device, which aims to efficiently detect whether the sample suction precision of the liquid transfer device meets the precision requirement and ensure the accuracy of quantitative analysis of an analyzer. Disclosure of utility model Aiming at the problems in the related art, the application discloses a device for detecting the repeated sample suction precision of a liquid dispenser, which can efficiently detect whether the sample suction precision of the liquid dispenser meets the precision requirement. In order to achieve the above purpose, the present application provides the following technical solutions: The utility model provides a detect device of pipettor repeated sample suction precision, including horizontal migration structure, vertical cantilever structure, telescopic arm structure and control portion, horizontal migration structure upper portion is equipped with along horizontal migration structure horizontal migration's removal seat, vertical cantilever structure one end and removal seat fixed connection, vertical cantilever structure other end and telescopic arm structure upper portion remove to be connected, vertical cantilever structure passes through the removal seat perpendicular alternately with horizontal migration structure, telescopic arm structure lower part is equipped with connecting portion, connecting portion detachable connection pipettor, connecting portion can follow telescopic arm structure and reciprocate, but control portion and horizontal migration structure, remove the seat, vertical cantilever structure, telescopic arm structure, connecting portion signal control connects, control portion can carry out signal control to horizontal migration structure, remove the seat, vertical cantilever structure, telescopic arm structure, connecting portion. The working principle of the application is as follows: The parameter setting stage comprises the steps of firstly moving a horizontal moving structure and a vertical cantilever structure through a control part, enabling a liquid shifter to move to a detection point and a measurement point, placing a detection measuring cup containing a certain amount of liquid at the position of the detection point, placing an empty measurement measuring cup at the measurement point, determining positioning coordinates of the detection point and the measurement point through a controller, setting the repetition times of detection, and starting automatic detection after parameter setting is completed. And in the automatic detection stage, after the parameter setting is finished, starting automatic detection, repeatedly moving the liquid transfer device at the detection point and the measurement point, and automatically finishing the liquid suction process and the liquid dropping process according to the preset detection repetition times until the detection is finished. In the automatic detection stage, a detector observes