The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 1996
Filed:
May. 02, 1994
Thomas M Baer, Mountain View, CA (US);
Louis J Dietz, Mountain View, CA (US);
Robert S Dubrow, San Carlos, CA (US);
Paul G Hayter, Los Altos, CA (US);
Michael Hodges, Palo Alto, CA (US);
Bala S Manian, Los Altos Hills, CA (US);
Robert J Shartle, Livermore, CA (US);
Biometric Imaging, Inc., Mountain View, CA (US);
Abstract
The apparatus and method of the present invention disclose a scanning imaging cytometer wherein an unprocessed biological fluid sample is reacted with a fluorescently-labeled binding agent. The reacted sample undergoes minimal processing before it is placed into a capillary tube. The sample is optically scanned and fluorescence excitation is recorded from a plurality of columnar regions of the capillary tube, each columnar region generally defined by the spot size of the excitation beam and the depth dimension of the capillary tube. A spatial filter of a sufficient pinhole diameter is selected to allow simultaneous volumetric detection of all fluorescent targets in each columnar region.