Chemistry: analytical and immunological testing – Biological cellular material tested
Reexamination Certificate
2007-06-19
2007-06-19
Soderquist, Arlen (Department: 1743)
Chemistry: analytical and immunological testing
Biological cellular material tested
C209S003100, C209S003200, C209S003300, C209S004000, C209S127400, C209S552000, C209S571000, C209S576000, C209S577000, C209S578000, C209S579000, C209S906000, C250S461200, C422S073000, C422S082050, C422S082080, C422S082090, C422S082110, C436S164000, C436S172000
Reexamination Certificate
active
10819745
ABSTRACT:
An optical illumination and monitoring subsystem controls the operation of a flow cytometer having a carrier fluid that flows along a channel coupled to a droplet generator, which controls a point at which droplets break off from the carrier fluid, and a droplet sorter that is operative to cause selected droplets to be sorted along one or more droplet travel paths. The subsystem is operative to illuminate a respective droplet monitoring location along each of one or more droplet travel paths with a respective beam of light, such as that sourced from a common laser. In response to backscatter reflection from a droplet passing through the respective beam of light at a respective droplet monitoring location, the amplitude of the beam of light is increased. Then the droplet is monitored for the presence of a particle therein exhibiting detectable fluorescence as a result of the increase in the amplitude of the respective beam of light.
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Burr Robert C.
Lary Todd P.
Snow Christopher W.
Alter Mitchell E.
Beckman Coulter Inc.
Soderquist Arlen
Wands Charles E.
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