Title:
【発明の名称】体積センサのない微量分注デバイス、分注デバイス配列、および微量分注デバイスの使用用途
Document Type and Number:
Japanese Patent JP3463929
Kind Code:
B2
Abstract:
A volume sensor-free microdosing device comprises a pressure chamber which is at least partly delimited by a displacer, an actuating device for actuating the displacer, the volume of the pressure chamber being adapted to the changed by actuating the displacer, a media reservoir which is in fluid communication with the pressure chamber, an outlet opening which is in fluid communication with the pressure chamber, and a control mechanism. The control mechanism drives the microdosing device in such a way that a small change of volume of the pressure chamber volume is effected per unit time by a movement of the displacer from a first position to a predetermined second position, the second position of the displacer defining a larger volume of the pressure chamber than the first position, so as to suck a fluid volume into the pressure chamber, and that, in a second phase, a large volume change of the pressure chamber volume is effected per unit time by a movement of the displacer from the second position to the first position, so as to eject a defined fluid volume from the outlet opening in this way.
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Inventors:
Zengerle Rollant
Freigang Michael
Hay Nicolaus
Gluer holger
Freigang Michael
Hay Nicolaus
Gluer holger
Application Number:
JP2000528369A
Publication Date:
November 05, 2003
Filing Date:
January 14, 1999
Export Citation:
Assignee:
Hahn-Sickert-Geselschaft Fuer Angewante Forschung A Fau
International Classes:
B01J4/00; B01L3/02; B05B9/04; F04B19/00; G01N31/20; F04B43/04; G01F11/08; G01N35/10; C40B60/14; G01N35/00; (IPC1-7): B01J4/00; F04B19/00; G01N31/20; G01N35/10
Domestic Patent References:
| JP8332425A | ||||
| JP5172060A | ||||
| JP4194380A | ||||
| JP4353279A | ||||
| JP680075A | ||||
| JP9500949A |
Attorney, Agent or Firm:
Michihiro Okada