title: A special holder allows replacement of the recording barrel of a 'piggy-back' multibarrel microelectrode.
abstract: A new form of multibarrel micropipette is described. The special holder has several advantages: it can be quickly replaced if it is damaged; the multi-barrel injection portion of the pipette and the drugs it contains can be reused; contamination by spill-over of drugs from one barrel to another is prevented and pressure techniques can be applied using this micro-electrode.
mesh_terms: D004566:Electrodes; D004594:Electrophysiology / Q000295:instrumentation*; D007478:Iontophoresis / Q000295:instrumentation; D008845:Microinjections / Q000295:instrumentation; D009482:Neurophysiology / Q000295:instrumentation*