Flow cytometry apparatus with improved light beam adjustment
Patent 4989977 Issued on February 5, 1991. Estimated Expiration Date: 
February 5, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 5, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3826364 3838912 Measuring device for the measurement of fluid flow rates Fluorescence analysis of stained particles Multidimensional slit-scan flow system Apparatus and method for detecting platelets in whole blood Patent #: 4577964 InventorApplicationNo. 760205 filed on 07/29/1985US Classes:356/338With photocell detectionExaminersPrimary: Rosenberger, Richard A.Attorney, Agent or FirmInternational ClassG01N 021/64AbstractA flow cytometry apparatus for determining one or more characteristics of particles or the like flowing in a liquid stream includes a nozzle for generating a liquid flow stream for moving particles therethrough substantially one at a time. A light source provides a beam of focused light to illuminate the particles moving in the stream. A beam steering member is positioned to adjust the focal point of the light beam on the particles by refracting the light beam to cause a displacement of the focal point. At least one detector is provided for detecting light and for associating that light with one or more characteristics of each particle. | |
