Patent ID: 11959931
Assignee: VENTANA MEDICAL SYSTEMS, INC.
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 11:
12. A system for treating a biological sample, comprising:
at least one dispenser for dispensing a liquid reagent;
at least one dispense detector locatable between an outlet of the at least one dispenser and the biological sample, the dispense detector comprising at least two arrays, each of the at least two arrays comprise one or more emitters and one or more corresponding receivers, wherein one or more light paths between the one or more emitters and the one or more corresponding receivers of the at least two arrays are arranged about 90 degrees relative to each other, and wherein spaces between the one or more emitters and the one or more corresponding receivers form one or more detection regions of the at least one dispense detector, wherein the one or more emitters and the corresponding one or more receivers of the first of the at least two arrays are opposite the one or more emitters and corresponding one or more receivers of a second of the at least two arrays to form an anti-parallel configuration; and
a dispense detection unit configured to receive a signal from the at least one dispense detector during a dispensing event and output a detected dispense event of the liquid reagent from the at least one dispenser.