AUTOANALYZER

• Main Authors: OCHI MANABU, NAKAJIMA KEI, ETO JUN, SUZUKI YOICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 17.05.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide an autoanalyzer with which it is possible to adjust a relative position of a dispensing nozzle to the object to which to dispense, in a short time with high accuracy.SOLUTION: An autoanalyzer 10 according to the present invention comprises: a dispensing device 11 that includes a dispensing nozzle 113 that draws in and discharges liquid; an object 200 to which to dispense, which is a container to contain the liquid drawn in and discharged by the dispensing nozzle 113; an imaging unit 122 that captures the images of the dispensing nozzle 113 and the object 200 to which to dispense; and a control unit 111 that controls the dispensing device 11 and the imaging unit 122. A vertical distance between a tip 113a of the dispensing nozzle 113 and an upper end of the object 200 to which to dispense is set to a relative height L2 of the dispensing nozzle 113 and the object 200 to which to dispense. The control unit 111 acquires the relative height L2 and corrects, using a relationship between the relative height L2 and the number of pixels to correct, a target position 202 of the tip 113a of the dispensing nozzle 113 in the object 200 to which to dispense, or a position of the tip 113a of the dispensing nozzle 113, in an image 201 captured by the imaging unit 122.SELECTED DRAWING: Figure 5B 【課題】本発明は、分注対象物に対する分注ノズルの位置を、短時間で精度良く調整できる自動分析装置を提供する。【解決手段】本発明による自動分析装置１０は、液体の吸引と吐出を行う分注ノズル１１３を備える分注装置１１と、分注ノズル１１３が吸引と吐出を行う液体を収容する容器である分注対象物２００と、分注ノズル１１３と分注対象物２００を撮像する撮像部１２２と、分注装置１１と撮像部１２２を制御する制御部１１１とを備える。分注ノズル１１３の先端部１１３ａと分注対象物２００の上端部との上下方向の距離を、分注ノズル１１３と分注対象物２００の相対高さＬ２とする。制御部１１１は、相対高さＬ２を取得し、相対高さＬ２と補正ピクセル数との関係を用いて、撮像部１２２が撮像した画像２０１上での、分注ノズル１１３の先端部１１３ａの分注対象物２００における目標位置２０２又は分注ノズル１１３の先端部１１３ａの位置を補正する。【選択図】図５Ｂ