Fine control system for a glass electrode or the like

Abstract

An improved system for finely and precisely controlling the operational position of a glass electrode, micropipette, micro surgical knife or the like with the aid of hydraulic remote control devices including hydraulic hoses is disclosed. This system includes a control stand with an actuator assembly firmly mounted thereon, said actuator assembly comprising X-, Y- and Z-coordinate actuators, a first fine adjusting device for roughly adjusting the X- and Y-coordinate actuators and a second fine adjusting device for adjusting the Z-coordinate actuator and moreover finely adjusting the X- and Y-coordinate actuators. A glass electrode or the like to be finely located is adjustably mounted on the actuator assembly. The first fine adjusting device comprises two fine adjusting handle devices adapted to adjust hydraulic pressure in a hydraulic chamber by turning a handle with operator's fingers and adjusted hydraulic pressure is transmitted to both the X- and Y-coordinate actuators on the control stand so as to effect rough positioning. The second fine adjusting device includes a micrometer head with a number of calibrations engraved thereon so that the Z-coordinate actuator is adjusted by turning the handle of the micrometer head and both the X- and Y-coordinate actuators are finely adjusted by swing movement of the whole micrometer head about the center of a movable ball.