Patent ID: 8088342
Filing Date: 2012-01-03
Classification: B01L,G10L

Abstract:
1. A hand-held pipettor comprising: a piston received in one end of a cylinder; a pipettor tip removably secured to an opposite end of said cylinder; a manually driven plunger for reciprocating said piston through a selected stroke along a longitudinal axis to aspirate fluid into and to expel the thus aspirated fluid from said pipettor tip; mutually spaced stop members engagable with said manually driven plunger to define together a range of the stroke; a mechanism including a stepper motor and a rotatable member defining one of said stop members, said mechanism being responsive to control signals for adjusting a range of said stroke by adjusting a position of said rotatable member along said longitudinal axis; a central processing unit; and a voice recognition system that decodes verbal commands and outputs the result to said central processing unit, which in turn generates said control signals.