Title:
METHOD OF ESTABLISHING AT LEAST ONE ENVELOPED FLOW IN A CHANNEL
Document Type and Number:
WIPO Patent Application WO2001069203
Kind Code:
A3
Abstract:
With a method of establishing an enveloped flow in a channel, in the channel an envelopment area (3) with a channel section (6, 7) is configured to which a stub with an outlet is connected, where the stub, which can be configured as a polyhedron, is arranged substantially at right-angles to the envelopment area and with the plane of the outlet substantially at right-angles to the channel section. An inlet channel (9, 11) and an outlet channel (8, 10) are connected to the envelopment area. By providing a narrowing-down in the cross-section of the channel in immediate extension of the envelopment area (3), a hydrodynamic focussing of the sample fluid is achieved when a fluid, such as a sample fluid, is introduced into the stub, and a carrier fluid is introduced into the inlet channel. The advantage of the invention is that since it is necessary only to have two fluid inlets, a relatively simple structure can be established, which can be built up in a monolithic manner, e.g. by injection moulding.
Inventors:
LARSEN ULRIK DARLING (DK)
WOLFF ANDERS (DK)
TELLEMAN PIETER (DK)
WOLFF ANDERS (DK)
TELLEMAN PIETER (DK)
Application Number:
PCT/DK2001/000156
Publication Date:
September 26, 2002
Filing Date:
March 09, 2001
Export Citation:
Assignee:
SCANDINAVIAN MICRO BIODEVICES (DK)
LARSEN ULRIK DARLING (DK)
WOLFF ANDERS (DK)
TELLEMAN PIETER (DK)
LARSEN ULRIK DARLING (DK)
WOLFF ANDERS (DK)
TELLEMAN PIETER (DK)
International Classes:
G01N15/14; (IPC1-7): G01N15/14
Foreign References:
| US4988619A | 1991-01-29 | |||
| US5808737A | 1998-09-15 | |||
| EP0288029A2 | 1988-10-26 |
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