Electronic pipettor
First Claim
Patent Images
1. A hand-held, electronic pipettor comprising:
- an elongated body adapted to be held in the hand of the user;
a touch wheel control located on a front side of the body to be operated by the user;
a run button located on the pipettor to be operated by the user;
an ejector button located on the pipettor to be operated by the user;
a dot matrix user interface display located on the front side of the pipettor above the touch wheel control,a microprocessor; and
menu-driven software for controlling information displayed on the user interface display and for programming the microprocessor to operate the pipettor wherein at least some of the information is displayed as a menu of options;
wherein the touch wheel control comprises a circular touch pad that translates rotational movement of a thumb or finger into cursor movements on the display in order to navigate the menu-driven software.
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Abstract
A hand-held electronic pipettor is designed particularly to be programmed and operated with one hand for the convenience of the user. It uses a capacitance touchpad control for programming, and a separate run button for the operating mode. Internal components are located so that the center of gravity of the pipettor is located within the palm of the user. Flash memory stores an empirically derived table that correlates aspiration volume to motor steps and a separate empirically derived table the correlates dispensing volumes to motor steps.
30 Citations
7 Claims
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1. A hand-held, electronic pipettor comprising:
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an elongated body adapted to be held in the hand of the user; a touch wheel control located on a front side of the body to be operated by the user; a run button located on the pipettor to be operated by the user; an ejector button located on the pipettor to be operated by the user; a dot matrix user interface display located on the front side of the pipettor above the touch wheel control, a microprocessor; and menu-driven software for controlling information displayed on the user interface display and for programming the microprocessor to operate the pipettor wherein at least some of the information is displayed as a menu of options; wherein the touch wheel control comprises a circular touch pad that translates rotational movement of a thumb or finger into cursor movements on the display in order to navigate the menu-driven software. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification