Automatic chemical analyzing method and apparatus
Discrete type automated chemical analytic apparatus
Apparatus for effecting automatic analysis
Liquid handling apparatus
Automated apparatus for photometrically detecting immunological agglutinating reactions
Automatically operating analysis apparatus Patent #: 4459265
ApplicationNo. 06/928459 filed on 11/10/1986
US Classes:702/22, Chemical analysis356/246, Fluid containers (e.g., cells or cuvettes)422/64, Means is turntable (circular)422/67, With specific analytical program control means700/271Refinement or purification or rejuvenation
ExaminersPrimary: Lall, Parshotam S.
Assistant: Mattson, Brian M.
Attorney, Agent or Firm
International ClassesG01N 35/02 (20060101)
G01N 35/04 (20060101)
G01N 35/10 (20060101)
Foreign Application Priority Data1985-11-19 JP
AbstractAn automatic chemical analyzer including a cuvette wheel having a number of cuvette holding recesses formed along a periphery thereof, a driving unit for rotating the cuvette wheel in a stepwise manner, an automatic cuvette loader for supplying cuvettes into cuvette holding recesses of the cuvette wheel, a sample delivery device for supplying samples into cuvettes held on the cuvette wheel, a reagent delivery device for supplying reagents into cuvettes held on the cuvette wheel, a colorimeter for measuring an optical density of test liquids contained in cuvettes, a washing device for washing cuvettes, and an automatic cuvette unloader for removing cuvettes out of the cuvette wheel. The analyzer further comprises a central control device for controlling the automatic cuvette loader and unloader such that after a cuvette has been repeatedly used a predetermined maximum number of times, the relevant cuvette is removed from the cuvette wheel and a new cuvette is supplied into the cuvette holding recess from which the cuvette has been just removed.