Dry slide assay using reduced reading window
AssigneeOrtho-Clinical Diagnostics, Inc.
InventorsZhong Ding, Andrew M. Kirsch, Edward R. Scalice, Benjamin Wojtasiewicz
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Abstract
The present disclosure is directed to a method and apparatus for performing an assay on a dry slide or other solid media using a reduced reading window. In an embodiment, method of performing at least one assay comprises obtaining an image of a fluid sample located on a dry slide, positioning a reading window to correspond to an area of the fluid sample in the image, determining an interference area within the reading window based on light intensity, reducing the reading window to eliminate the interference area from the reading window, and performing at least one assay using the reduced reading window.
Claims20
A method of performing at least one assay comprising:
- obtaining, in a processor of a control unit, an image of a fluid sample located on a dry slide;
- positioning, via the processor of the control unit, a reading window to correspond to an area of the fluid sample in the image;
- determining, via the processor of the control unit, an interference area within the reading window based on light intensity;
- reducing, via the processor of the control unit, the reading window to eliminate the interference area from the reading window;
- and
- performing, via the control unit, at least one assay using the reduced reading window.
A method of performing at least one assay comprising:
- dispensing a fluid sample on a dry slide;
- dispensing a washing fluid onto the fluid sample on the dry slide;
- obtaining, via a processor of a control unit, an image of the dry slide;
- positioning, via the processor of the control unit, a reading window to correspond to an area of the fluid sample in the image;
- reducing, via the processor of the control unit, the reading window to exclude an interference area caused by the washing fluid;
- and
- performing, via the control unit, at least one assay using the reduced reading window.
An apparatus for performing at least one assay comprising:
- a slide reception location configured to receive at least one dry slide having a fluid sample located thereon;
- a dispenser configured to dispense a washing fluid onto the fluid sample on the dry slide;
- and
- a control unit configured to:
- (i) position a reading window to correspond to an area of the fluid sample in the image;
- (ii) reduce the reading window to exclude an interference area caused by the washing fluid;
- and (iii) perform at least one assay using the reduced reading window.
Dependencies are inferred from the claim text.