Loading disk for photometric analyzer of rotary cuvette type

Abstract

Abstract A LOADING DISK CHARACTERIZED BY EXTREMELY RAPID AND EFFICIENT MIXING A LIQUID TRANSFER IS PROVIDED FOR USE IN A PHOTOMETRIC ANALYZER OF THE ROTARY CUVETTE TYPE. THE DISK, WHICH IS ADAPTED TO THE CENTRALLY DISPOSED WITHIN A CUVETTE ROTOR HOUSING AN ANNULAR ARRAY OF SAMPLE ANALYSIS CUVETTES, FACILITATES LOADING, MIXING, AND TRANSFER OF INDIVIDUAL SAMPLES AND REAGENTS TO RESPECTIVE CUVETTES WHERE PHOTOMETRIC ANALYSIS TAKES PLACE. THE LOADING DISK DEFINES AN ANNULAR ARRAY OF SAMPLE AND REAGENT CHAMBERS OR CAVITIES WITH ONE PAIR OF ADJACENT CHAMBERS BEING PROVIDED TO SUPPLY EACH RESPECTIVE SAMPLE ANALYSIS CUVETTE. EACH PAIR OF CHAMBERS IS ADAPTED TO RECEIVE AND RETAIN SEPARATE VOLUMES OF SAMPLE AND REAGENT LIQUIDS WHEN THE LOADING DISK AND CUVETTE ROTOR ARE STATIONARY AND TO DISCHARGE THE LIQUIDS WHEN THE LOADING DISK AND ROTOR ARE ROTATED. MIXING CHAMBERS, ONE FOR EACH PAIR OF SAMPLE AND REAGENT CHAMBERS, ARE DISPOSED RADIALLY OUTWARD FROM THE SAMPLE AND REAGENT CHAMBERS ON RADII POSITIONED ANGULARLY INTERMEDIATE THE CHAMBERS IN EACH RESPECTIVE PAIR OF CHAMBERS. FIRST PASSAGEWAYS CONNECT, IN PARALLEL, THE SAMPLE AND REAGENT CHAMBERS IN EACH PAIR OF CHAMBERS TO CORRESPONDING MIXING CHAMBERS. SECOND PASSAGEWAYS PROVIDE DISCHARGE MEANS FROM THE MIXING CHAMBERS TO RESPECTIVE CUVETTES. ROTATION OF THE LOADING DISK AND CUVETTE ROTOR CAUSES THE LIQUIDS IN EACH PAIR OF SAMPLE AND REAGENT CHAMBERS TO FLOW IN PARALLEL FORM THOSE CHAMBER, THROUGH THE FIRST PASSAGEWAYS TO THE MIXING CHAMBERS WHERE THEY ARE MIXED, AND THEN THROUGH THE SECOND PASSAGEWAYS TO RESPECTIVE SAMPLE ANALYSIS CUVETTES FOR PHOTOMETRIC ANALYSIS.

Inventors

• 👤 W Shults
• 👤 W Maddox
• 👤 R Coleman

Bibliographic Details