Narishige

The NMN-21 is designed to operate without drifting - one of the most critical problems in delicate patch clamping work. The unit has no hydraulic system (which can cause drifting because of temperature changes), and no springs. Jitters transmitted via the control knob, a typical limitation of manual systems, are minimized to avoid their vibrations reaching the electrode tips and disrupting fine manipulations. Since the NMN-21 is motorless, has no actuator, yet its compact body is sufficiently stable for use with multichannel micromanipulation systems, even electromagnetic disturbance is eliminated. If required, the unit can be fixed to the top of an isolation table with the specially designed GJ-12 magnet stand (optional).
The slider, which is one of the main mechanisms of a micromanipulator, actually consists of two independent sliders; one used inside, the other outside. When the operator touches the control knob, which is connected to one slider, vibrations are caused. To overcome this problem, the control knob is fixed independently, separate from the slider.

     
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