Flow-cell device

Details Flow-cell device Flow-cell device

1988-04-18

1991-04-16

Rosenberger, Richard A.

Optics: measuring and testing

For optical fiber or waveguide inspection

356410, 356 39, G01N 2100, G01N 2185

Patent

active

050077325

ABSTRACT:
A sheath flow type flow-cell device for plow-cytometer which comprises a first inlet for sheath fluid, a flow passage communicated with the first inlet and contracted toward downstream, the flow passage having a substantially rectangular cross section, a straight capillary flow passage connected to the flow passage downstream thereof, the capillary flow passage having a substantially rectangular cross section, a second inlet for sample fluid, a nozzle communicating with the second inlet and opened within the flow passage in the same direction as the flow direction of the straight capillary flow passage, a discharge port provided at a terminal end of the straight capillary flow passage, and flow regulating means for regulating the flow of the sheath fluid in the straight capillary flow passage to be a laminar flow having a gradient of flow velocity.

REFERENCES:
patent: 3649829 (1972-03-01), Randolph
patent: 3893766 (1975-07-01), Hogg
patent: 3967265 (1976-06-01), Jacob
patent: 4352558 (1982-10-01), Eisert
patent: 4737025 (1988-04-01), Steen
patent: 4781459 (1988-11-01), Suzuki
Review of Scientific Instruments, vol. 55, No. 9, Sep. 1984, pp. 1375-1400, New York, U.S.
The Journal of Histochemistry and Cytochemistry, vol. 25, No. 7, pp. 774-780.
Biophysical Journal, vol. 23, 1987, pp. 7-13.

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