Specially adapted for use with the Nanoliter Injector for oo­cyte in­jec­tion and similar applications, this joystick-controlled mi­cro­ma­n­ip­u­la­tor al­lows an easy “steer­ing” motion that translates normal hand move­ment into smooth sub-millimeter shifts. Viewed mi­cro­scop­i­cal­ly, move­ment of the tool-tip cor­re­sponds naturally to hand move­ment, so ac­cu­rate resolution is intuitive and quick.