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1. WO2002003078 - LIQUID DISPENSING METHOD AND DEVICE

Publication Number WO/2002/003078
Publication Date 10.01.2002
International Application No. PCT/JP2000/004390
International Filing Date 30.06.2000
Chapter 2 Demand Filed 30.06.2000
IPC
B01L 3/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
3Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
02Burettes; Pipettes
G01N 35/10 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
35Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/-G01N33/148; Handling materials therefor
10Devices for transferring samples to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
CPC
B01L 2200/14
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
2200Solutions for specific problems relating to chemical or physical laboratory apparatus
14Process control and prevention of errors
B01L 2300/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
2300Additional constructional details
10Means to control humidity and/or other gases
B01L 3/021
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
3Containers or dishes for laboratory use, e.g. laboratory glassware
02Burettes; Pipettes
021Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
B01L 3/0241
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
3Containers or dishes for laboratory use, e.g. laboratory glassware
02Burettes; Pipettes
0241Drop counters; Drop formers
G01N 2035/1025
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
35Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
10Devices for transferring samples ; or any liquids; to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
1009Characterised by arrangements for controlling the aspiration or dispense of liquids
1025Fluid level sensing
G01N 35/1016
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
35Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
10Devices for transferring samples ; or any liquids; to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
1009Characterised by arrangements for controlling the aspiration or dispense of liquids
1016Control of the volume dispensed or introduced
Applicants
  • HITACHI, LTD. [JP]/[JP] (AllExceptUS)
  • ROCHE DIAGNOSTICS GMBH [DE]/[DE] (AllExceptUS)
  • TOKIWA, Yukie [JP]/[JP] (UsOnly)
  • IMAI, Kyoko [JP]/[JP] (UsOnly)
  • SIEGFRIED, Lotterer [DE]/[DE] (UsOnly)
  • FRIEDEMANN, Krause [DE]/[DE] (UsOnly)
Inventors
  • TOKIWA, Yukie
  • IMAI, Kyoko
  • SIEGFRIED, Lotterer
  • FRIEDEMANN, Krause
Agents
  • TAKADA, Yukihiko
Priority Data
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) LIQUID DISPENSING METHOD AND DEVICE
(FR) PROCEDE ET DISPOSITIF DE DISTRIBUTION DE LIQUIDE
Abstract
(EN) Water is sucked into a dispensing tip (2) from a liquid container (8), and later air is sucked at a first speed and then at a speed higher then the first speed, thereby atomizing or forming into droplets the sucked water in the dispensing tip (2) to increase an air relative humidity in the dispensing tip (2). A specified time later, a liquid to be dispensed is sucked into the dispensing tip (2). Whereby, a vaporization amount, in the dispensing tip (2), of the liquid to be dispensed is kept minute and constant to enable an accurate dispensing in amount of the liquid.
(FR) De l'eau, contenue dans un réservoir (8), est aspirée dans un embout (2) à une première vitesse puis à une vitesse supérieure à cette première vitesse, ce qui permet d'atomiser ou de pulvériser l'eau aspirée dans l'embout (2) pour augmenter l'humidité relative à l'air dans cet embout (2). Au bout d'un temps déterminé, un liquide à distribuer est aspiré dans l'embout (2). Un volume vaporisé, dans l'embout (2), du liquide à distribuer est ainsi gardé minime et constant pour permettre la distribution d'une quantité précise de liquide.
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