A nozzle device comprising: a nozzle body having a nozzle portion on a distal end portion of an aliquoting/dispensing pipe through which a specimen is aliquoted and dispensed; a ball provided in the nozzle body and elastically deformable by compression; an aliquoting/dispensing tip having a barrel portion in which the nozzle body including the ball is inserted; and a ball compressing mechanism which is provided in the nozzle body, configured elastically to deform the ball by compression so that the diameter of the ball increases with the nozzle body including the ball inserted in the barrel portion of the aliquoting/dispensing tip, thereby pressing the ball airtightly against an inner peripheral surface of the barrel portion of the tip, when the tip is attached to the nozzle body, and configured to remove a compressive force from the ball so that the diameter of the ball is reduced, thereby separating the ball from the inner peripheral surface of the barrel portion of the tip, when the tip is detached from the nozzle body.

Title
Nozzle device for aliquoting and dispensing specimen incorporated reference
Application Number
200610075558
Publication Number
1967257
Application Date
April 20, 2006
Publication Date
May 23, 2007
Inventor
Itoh Teruaki
Agent
kouyang jie
Assignee
Ids
IPC
B01L 03/00
G01N 01/00
G01N 35/08