Patent ID: 9358538
Filing Date: 2016-06-07
CPC Classification: B01L

Claim Text:
1. A pipette device, comprising: a fluid chamber having an enclosed volume of working fluid; a piston that partially defines the fluid chamber, the piston being movable to displace the working fluid within the fluid chamber; and a diaphragm that partially defines the fluid chamber, the diaphragm having a chamber side in contact with the working fluid and an opposite side that displaces a measurement volume of fluid outside the fluid chamber when the piston moves to displace a volumetric amount of working fluid, wherein the pipette device is adapted to deamplify fluid displacement within the fluid chamber at said opposite side of the diaphragm at least partly via elastic deformation of the diaphragm, whereby the measurement volume is less than the volumetric amount of working fluid displaced by the piston.