Patent ID: 8900527

Claim:
A device for aspirating and dispensing more than one liquid sample, said device comprising: a main body comprising a receiving part, two or more adjacent pipetting units extending vertically parallel to each other, each of said pipetting units comprising: an interacting part releasably engaging the receiving part of the main body in a fixed position; an interface for interacting with an interface of a pipette tip; and an upper frame and a lower frame each configured to receive and mount a module, at least one module present in the upper or lower frame of each pipetting unit, wherein the modules of two adjacent pipetting units are mounted in a staggered fashion between the upper frame of one of the two or more adjacent pipetting units and the lower frame of a second adjacent pipetting unit, said modules comprising at least one of: a pump for aspirating and dispensing a liquid, a Y-axis actuator, and a Z-axis actuator, wherein said Y-axis actuator and said Z-axis actuator function independently, or an electronic module for controlling functions of said pipetting unit; and an X-transfer mechanism connected to said main body to which said pipetting units are connected.