IP Library Granted Patent US 10,451,643
Granted Patent B2
US 10,451,643 · App. 15/308,914 · Granted Oct 22, 2019

Sample dispensing device and nozzle tip for sample dispensing device

Inventors: Kouichi Obari (Tokyo, JP); Eiji Takaya (Tokyo, JP); Takashi Otsu (Tokyo, JP)
Assignee: Hitachi High-Technologies Corporation
G01N35/1011B01L3/0275G01N1/00G01N35/10B01L2200/026B01L2300/12G01N2035/00346G01N2035/00534G01N2035/103
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Quick Facts
Patent No.
US 10,451,643
App. No.
15/308,914
Granted
Oct 22, 2019
Kind
B2
Abstract

The sample dispensing device sucks a liquid sample from a predetermined container and then discharges the sample to another container. The sample dispensing device includes a nozzle tip that sucks and holds the sample; a dispensing nozzle to which the nozzle tip can be detachably attached via a fitting part; a dispensing nozzle position control means that controls the position of the dispensing nozzle with respect to the predetermined container and the other container; a nozzle tip removing means that removes the nozzle tip from the dispensing nozzle; and a discarding box into which water can be supplied, and in which the nozzle tip removed from the dispensing nozzle is discarded. The nozzle tip is made of a water-soluble material, and after being removed from the dispensing nozzle by the nozzle tip removing means, the nozzle tip is dissolved by water in the discarding box.

Claims (22)

1. A sample dispensing apparatus that sucks a liquid sample from a predetermined container and then discharges the sample to another container, the sample dispensing apparatus comprising:

a nozzle tip that sucks and holds the sample;

a dispensing nozzle to which the nozzle tip is detachably attached through a fitting part of the nozzle; and

a discarding box configured to have a liquid supplied therein and configured to receive the nozzle tip in a state where the nozzle tip is detached from the dispensing nozzle,

wherein the nozzle tip is made of a material which is soluble in the liquid and is configured to be dissolved in the liquid in the discarding box, and

wherein the discarding box has stirring means that stirs the liquid in the discarding box.

2. The sample dispensing apparatus according to claim 1 , wherein the material of the nozzle tip is a water-soluble resin.

3. The sample dispensing apparatus according to claim 1 , wherein the discarding box has a heater configured to control the temperature of the liquid in the discarding box.

4. The sample dispensing apparatus according to claim 1 , comprising a valve and a drain hose connected through the valve to the discarding box at a first end and a second end of the drain hose is configured to be connected to a waste liquid treatment equipment.

5. The sample dispensing apparatus according to claim 1 , wherein the material of the nozzle tip is soluble in water as the liquid.

6. The sample dispensing apparatus according to claim 1 , wherein the material of the nozzle tip is soluble in furfural as the liquid.

7. A sample dispensing apparatus that sucks a liquid sample from a predetermined container and then discharges the sample to another container, the sample dispensing apparatus comprising:

a nozzle tip that sucks and holds the sample;

a dispensing nozzle to which the nozzle tip is detachably attached through a fitting part of the nozzle; and

a discarding box configured to have a liquid supplied therein and configured to receive the nozzle tip in a state where the nozzle tip is detached from the dispensing nozzle,

wherein the nozzle tip is made of a material which is soluble in the liquid and is configured to be dissolved in the liquid in the discarding box, and

wherein the discarding box has a heater configured to control the temperature of the liquid in the discarding box.

8. The sample dispensing apparatus according to claim 7 , wherein the discarding box has a stirring device that stirs the liquid in the discarding box.

9. The sample dispensing apparatus according to claim 7 , comprising a valve and a drain hose connected through the valve to the discarding box at a first end and a second end of the drain hose is configured to be connected to a waste liquid treatment equipment.

10. The sample dispensing apparatus according to claim 7 , wherein the material of the nozzle tip is soluble in water as the liquid.

11. The sample dispensing apparatus according to claim 7 , wherein the material of the nozzle tip is soluble in furfural as the liquid.

12. The sample dispensing apparatus according to claim 7 , wherein the material of the nozzle tip is a water-soluble resin.

Assignments (2)
CHANGE OF NAME AND ADDRESS Recorded Mar 30, 2020
From: HITACHI HIGH-TECHNOLOGIES CORPORATION
To: HITACHI HIGH-TECH CORPORATION
Reel/Frame 052259/0227 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2016
From: OBARI, KOUICHI; TAKAYA, EIJI; OTSU, TAKASHI
To: HITACHI HIGH-TECHNOLOGIES CORPORATION
Reel/Frame 040327/0988 →
Priority Claims (1)
JP 2014-105121 · May 21, 2014 · national
Continuity (1)
Related Publication 20170059600A1 · Mar 2, 2017