Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals
Reexamination Certificate
2006-05-19
2009-11-03
Chin, Christopher L (Department: 1641)
Chemistry: analytical and immunological testing
Involving an insoluble carrier for immobilizing immunochemicals
C435S287100, C435S287200, C435S288700, C435S808000, C436S043000, C436S524000, C436S525000, C436S805000, C422S063000, C422S082050
Reexamination Certificate
active
07611905
ABSTRACT:
A surface plasmon resonance (SPR) assay apparatus has an assay stage, which is loadable with a sensor unit. The sensor unit has a prism, thin film, flow cell and flow channel for flow of sample. A multiple pipette assembly accesses the flow channel in the assay stage, and introduces the sample into the flow channel. A light source applies illuminating light to the thin film to satisfy a total reflection condition. A photo detector receives the illuminating light reflected by the thin film to output a signal. A pressing mechanism presses the sensor unit on the assay stage for holding in a direction of the access of the pipette assembly. The pressing mechanism includes a movable pad for contacting the sensor unit. A slider moves the pad to press the sensor unit. A spring plunger adjusts pressure of the pad to the sensor unit.
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patent: 5965456 (1999-10-01), Malmqvist et al.
patent: 3-294605 (1991-12-01), None
Kunuki Yoshiyuki
Muraishi Katsuaki
Chin Christopher L
FUJIFILM Corporation
Sughrue & Mion, PLLC
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