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Title:
DISPENSING CYLINDER, AND DISPENSING DEVICE AND DISPENSING TREATMENT METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2018/038019
Kind Code:
A1
Abstract:
The present invention relates to a dispensing cylinder and to a dispensing device and dispensing treatment method which use the dispensing cylinder, and the purpose of the present invention is to provide a high-precision dispensing cylinder that is compact and easily handled and that is also capable of performing dispensing treatment of both minute amounts and large amounts of a liquid using a single mechanism, and a dispensing device using the dispensing cylinder and a dispensing treatment method using the dispensing cylinder. The dispensing cylinder has: a cylinder having a cavity in the inside thereof; a nozzle to which a dispensing chip can be mounted, the nozzle being provided to one end of the cylinder, and a through-hole communicating with the cavity and extending along the axial direction of the cavity being provided in the nozzle; and a plunger provided so as to be able to slide along the axial direction through the inside of the cavity; the cavity having a large-diameter region having a large-diameter internal peripheral surface, and a small-diameter region having a small-diameter internal peripheral surface, the small-diameter region being provided on a nozzle side of the large-diameter region, and the plunger being configured so as to have a thick shaft part provided so as to be able to slide through the large-diameter region, and a thin shaft part protruding along the axial direction from a distal end of the thick shaft part and being provided so as to be able to slide to the small-diameter region.

Inventors:
TAJIMA HIDEJI (JP)
NAKAMURA KAZUHIRO (JP)
SUGIYAMA YU (JP)
Application Number:
PCT/JP2017/029679
Publication Date:
March 01, 2018
Filing Date:
August 18, 2017
Export Citation:
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Assignee:
UNIVERSAL BIO RESEARCH CO LTD (JP)
International Classes:
G01N35/10; B01J4/02; B01L3/02; G01N1/00
Foreign References:
JPS62170852A1987-07-27
JP2013250191A2013-12-12
US3831816A1974-08-27
JPH0694584A1994-04-05
JPH0929111A1997-02-04
JP2002214244A2002-07-31
JP2011000490A2011-01-06
Other References:
See also references of EP 3502710A4
Attorney, Agent or Firm:
DOBASHI Jun et al. (JP)
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