Abstract: There is provided a pipette device capable of adjusting a collection amount in a short time. A pipette device 1 adjusting a volume of a cylinder portion “a” by the axial-direction movement of a plunger 3 caused by the rotation of a push rod 5 includes a speed increasing mechanism 35 provided between a pipette main body 2 and the push rod 5 and increasing a speed of input rotation to transmit the input rotation with the increased speed to the push rod 5.

Abstract: There is provided a pipette device adaptable to a decrease in diameter of a pipette main body and costing lower. A pipette device 1 in which a plunger 3 is inserted in a cylinder portion “a” of a pipette main body 2 to be movable in an axial direction and the plunger 3 is moved to change a cylinder volume includes seal ring portions 15c, 15d formed on and integrally with one of an inner peripheral surface of the cylinder portion “a” and an outer peripheral surface of the plunger 3 to seal a gap between the cylinder portion “a” and the plunger 3.

Abstract: There is provided a pipette device capable of adjusting a collection amount in a short time. A pipette device 1 adjusting a volume of a cylinder portion “a” by the axial-direction movement of a plunger 3 caused by the rotation of a push rod 5 includes a speed increasing mechanism 35 provided between a pipette main body 2 and the push rod 5 and increasing a speed of input rotation to transmit the input rotation with the increased speed to the push rod 5.