Fine Wire Electrodes

We offer two different types of fine wire electrode, each electrode comprising of two sterilized fine-wires with hooked ends suitable for intra muscular recordings supplied in different length needles. The shorter 30mm needles are used for shallow insertions, while the longer 50mm needles are suitable for placement in deeper muscles.

Both lengths of fine wire electrode are supplied in packages of ten (10) electrodes - each electrode is supplied in an individual sterilized package, ready for use without requiring any preparation. Each wire has a 6mm, bare connection end, suitable for thumb-screw or spring connection to our fine-wire preamplifiers, and a 2mm exposed, insertion length. A brief guide to fine-wire needle usage is included with each shipment.

Specification

The completed assemblies are sterilized by gamma radiation, minimum dose of 25kGy with the sterilization validated using the VD-max method (AAMI TIR 27). Nelson Labs in Salt Lake City, UT performs lab testing services for the electrode manufacturer in conjunction with Sterigenics (the contract irradiator).

Each wire is 200mm long, the individual wires are 0.051 mm diameter, 304 series stainless steel with green nylon insulation for improved visibility. Each pair of wires has bare hooked sensor ends with a 2mm exposed sensor (the insulation is offset to avoid short circuits) in the cannula resulting in an insulated tail approximately 130-150mm long, depending on the length of the cannula (50mm or 30mm).

The equipment connection ends of each pair of wires are clean and free of insulation for 5mm, suitable for connection to any EMG system designed for bi-polar, intra muscular, fine-wire recording.

All electrodes have a minimum expiration period of one year from the date of purchase.