Microelectrode Neurography "Needles"
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Catalog Number: UN
Special tip configuration to facilitate recording and stimulating single or multi-unit nerve activity through the skin with minimal pain. Provided with manipulating tab and low mass lead to aid in accurate manual placement and support while in the nerve.
FHC Microneurography Electrodes (referred to as needles by many) were developed to record multi-unit peripheral nerve activity in humans. The tip taper is dramatically shorter and broader than our standard microelectrodes and convex to facilitate a minimally painful penetration through the skin. These tungsten electrodes can be provided with a variety of shank diameters and impedances to satisfy various recording requirements. A number of termination options are available to aid in the placement and support of the electrode in the nerve. They are also typically provided with a 15mm square manipulating tab to aid in accurate placement. Alternatively, an insulated floating termination can be provided to allow the electrode to move with the target tissue. Our microneurography electrodes are available in an uninsulated configuration as well for use as a reference electrode.
Catalog Number UN123456(iin)
1 Configuration
A: Active Needles, box of 12 insulated with selected tip impedance.
R: Reference Needles, box of 12, no insulation.
P: Active and Reference Pairs, box of 6 each.
X: Special/Specify
2,3 Electrode Length in millimieters:
35mm standard, if not specified.
4 Shank Diameter
E: .005" (125μm)
F: .008" (200μm)
G: .010" (250μm)
X: Special/Specify
5 Impedance
For Active needles only. Reference needles have no impedance.
A: 50kΩ - 100kΩ
B: 300kΩ - 500kΩ
C: 800kΩ - 1.2MΩ
1: 1MΩ ± .2MΩ
2: 2MΩ ± .4MΩ
3: 3MΩ ± .6MΩ
4: 4MΩ ± .8MΩ
5: 5MΩ ± 1MΩ
6: 6MΩ ± 1.2MΩ
7: 7MΩ ± 1.4MΩ
8: 8MΩ ± 1.6MΩ
9: 9MΩ ± 1.8MΩ
0: 10MΩ ± 2.9MΩ
N: No Zap (high)
R: Reference Needle
X: Special/Specify
6 Termination Options
R: Male pin and tab
S: Spiral lead
T: Sprial lead, male pin
U: Spiral lead, mini-banana plug
L: Floating termination
D: No pin, insulation not stripped
E: No pin, insulation stripped 5mm
G: No pin, insulation stripped 10mm
H: No pin, insulation stripped 15mm
J: No pin, insulation stripped 20mm
M: Male pin only (no tab)
X: Special (not listed)
