System and method for accurate measuring volume of liquid in a pipette

Abstract

A pipette control system (220) comprises a computing device (230) with a pipetting module and a first communication interface (234); and a pipette (30) with a sampling tube, a piston assembly, a piston drive mechanism, a second communication interface (190) and a microprocessor. The pipetting module has a computer code to define an operation to be performed by the pipette, and the first interface sends electronic signals to the second interface to define the operation. - A pipette control system (220) comprises a computing device (230) with a pipetting module and a first communication interface (234); and a pipette (30) with a sampling tube, a piston assembly, a piston drive mechanism, a second communication interface (190) and a microprocessor. The pipetting module has a computer code to define an operation to be performed by the pipette, and the first interface sends electronic signals to the second interface to define the operation. The microprocessor is coupled to the second communication interface and controls the piston drive mechanism to perform the pipette operation defined by the electronic signals. The operation is selected from an update installed software operation, a serial number entry operation, a calibration operation, a production automation operation, a data transfer operation, an execute program operation, a new mode integration operation or a servicing operation. - Independent claims are included for the following: - (1) a method of using the interface in a display of the computing device; - (2) and a method of responding to user inputs to a user interface presented in the display of the device.

Description

field of invention

[0001] The present invention generally relates to a pipette for aspirating and dispensing adjustable volumes of liquid. More specifically, the present invention relates to a liquid sampling pipette for measuring precise volumes of liquid. Background of the invention

[0002] In pharmaceutical, gene and protein research, biological research, drug discovery laboratories, and other biotechnology applications, pipettes are used to manipulate laboratory samples in a variety of laboratory procedures. Use the pipette to draw a certain volume of liquid into the pipette. The volume of liquid can then be dispensed into one or more dispense volumes. The piston drive mechanism moves the piston assembly to control the uptake and dispensing of specific volumes of liquid. Pipettes can be manually operated, wherein the user manually controls the speed and volume of liquid aspirated or dispensed using a pressure sensitive knob. Alternatively, the pipette can be operate...

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