Title:
LIQUID DELIVERY APPARATUS AND LIQUID DELIVERY METHOD
Document Type and Number:
WIPO Patent Application WO/2008/007532
Kind Code:
A1
Abstract:
A chamber chip (17) is provided with a pre-branching chamber (21), a branching
chamber (22) and a guiding flow channel (24) for connecting such chambers. The
branching chamber (22) has a separating wall (22c) which partitions the chamber
into two branching chambers (29A, 29B). A wall surface (22a) on the side of a rotating
shaft (13) of the branching chamber (22) has an obtuse extending angle (θe)
from an outlet end section (24b) of the guiding flow channel (24). The chamber
chip (17) rotates about the rotating shaft (13), and a liquid (23) flows into the
branching chamber (22) from the pre-branching chamber (21) through a guiding
flow channel (24). The liquid (23) is selectively supplied to one of the branching
chambers (29A, 29B) by a Coriolis force operated in a direction opposite to rotating
directions (R1, R2) about the rotating shaft (13).
Inventors:
OZAKI NOBUHIKO
Application Number:
PCT/JP2007/062695
Publication Date:
January 17, 2008
Filing Date:
June 25, 2007
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
OZAKI NOBUHIKO
OZAKI NOBUHIKO
International Classes:
G01N35/00; G01N35/08; G01N37/00
Other References:
THILO BRENNER ET AL.: "A FLOW SWITCH BASED ON CORIOLIS FORCE", PROCEEDINGS OF MUTAS 2003 SEVENTH INTERNATIONAL CONFERENCE ON MICRO TOTAL ANALYSIS SYSTEMS, vol. 2, October 2003 (2003-10-01), pages 903 - 906, XP003024632
Attorney, Agent or Firm:
TANAKA, Mitsuo et al. (IMP Building 3-7, Shiromi 1-chome, Chuo-ku, Osaka-sh, Osaka 01, JP)
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