Apparatus for aspirating and discharging a sample quantity
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 24, 2002
Grant Date -
N/A
app pub date -
Apr 18, 2000
filing date -
Apr 20, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
It has been hard to suck the high viscosity sample by using the syringe and to stop the suction of the sample. A sample sucking-discharging device in the invention comprises an injector provided with a cylinder and a piston installed in the cylinder so as to move up and down; a main body for holding the cylinder of the injector; a gear or a pair of gears held in the main body so as to rotate on an axis right-angled to the moving direction of the piston; a first rack, of which one end is connected with the piston, for moving with meshing to the gear or the pair of gears; and, a second rack held in the main body so as to move in the direction opposite to or crossing with the moving direction of the first rack.
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