Patent · US Active

Light guiding measuring cell for use in flow cytometry

US10281389B2 · kind B2 · utility

1Cited by

9References

16Claims

0Family size

Assignee

HERAEUS QUARZGLAS GMBH & CO. KG · DE

Inventors

Stefan Weidlich · Hetzles, DE
Clemens Schmitt · Walldürn, DE
Jörg Werner · Oschatz, DE
Markus Schmidt · Seibersbach, DE
Jens Kobelke · Jena, DE

Key dates

Filing date	Sep 8, 2015
Grant date	May 7, 2019
Priority date	—
Expiry date	Jan 28, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01N2201/08
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A measuring cell includes a cavity for receiving a test sample to be used in a particle detection apparatus. The measuring cell is configured as an optical waveguide for guiding a light beam. The waveguide has a core which has a refractive index nK, extends along a longitudinal axis of the waveguide, has a cross-sectional area AK of less than 80 μm2 in a cross section perpendicular to the longitudinal axis, and which is surrounded by a cladding having a smaller refractive index than nK. The cavity forms a channel. The channel extends along the longitudinal axis, is formed inside of or in contact with the core, and has at least one open end with an opening area AH of less than 0.2 μm2.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.