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Metal Electrode Selection Guide for Profile C
April 26, 2013
NOTE: A heat treated tip is ideal for penetrating tough membranes. (It is not recommended for chronic implantation.) This process is performed using a microforge in which the heating element is positioned in close proximity to the tip in order to melt the Parylene-C distal to the exposed metal. It provides a smooth transition and produces better adherence of the Parylene-C to the metal. Both the KT and non-KT electrodes are heat-treatable. The heat treatment is applied only to the parylene coating. The heat melts the parylene so it feathers down close to the shank near where the tip is exposed. This removes the abrupt edge where the parylene has been removed to create the tip exposure. The purpose is to prevent the parylene from delaminating from the electrode during implantation into tissue which could catch on the edge. Heat treatment does not work well in chronic applications, because the feather edge is susceptible to fluid intrusion overtime, which will alter the impedance characteristics of the electrode unfavorably.
To have your electrodes heat treated, just add the suffix “H” to any of the “KT” numbers. This treatment incurs an additional cost. Please call for pricing.
Profile C Microelectrodes
Platinum Iridium
Platinum Iridium Profile C Comparison Chart, 51 mm
Order code | Length | Insulation Thickness |
Shaft Diameter |
Nominal Impedance ±20% |
Tip Diameter |
Typical Use | Quantity |
---|---|---|---|---|---|---|---|
PTM23B10KT | 51mm | 3µ | 0.356mm | 1.0MΩ | 1-2µ | Single and multi unit recording, stimulation, chronic implants. | Package of 10 |
Platinum Iridium Profile C Comparison Chart, 305 mm
Order code | Length | Insulation Thickness |
Shaft Diameter |
Nominal Impedance ±20% |
Tip Diameter |
Typical Use | Quantity |
---|---|---|---|---|---|---|---|
PTM123B05KT | 305mm | 3µ | 0.61mm | 0.5MΩ | 1-2µ | Deep brain studies | Package of 5 |
Tungsten
Tungsten Profile C Comparison Chart, 76 mm long, 0.145 mm shaft
Order code |
Length | Insulation Thickness |
Shaft Diameter |
Nominal Impedance ±20% |
Tip Diameter |
Typical Use |
---|---|---|---|---|---|---|
TM31C05KT | 76mm | 1µ | 0.145 mm | 0.5 MΩ | 1µ | Recording from small tightly packed cells |
TM31C20KTH | 76mm | 1µ | 0.145 mm | 2..0 MΩ | 1µ | Recording from small tightly packed cells |
TM31C40KT | 76mm | 1µ | 0.145 mm | 4.0 MΩ | 1µ | Recording from small tightly packed cells |
TM31C40KTH | 76mm | 1µ | 0.145 mm | 4.0 MΩ | 1µ | Recording from small tightly packed cells |
TM33C05KT | 76mm | 1µ | 0.145 mm | 0.5 MΩ | 1µ | Single unit and stim / chronic use |
TM33C10KT | 76mm | 1µ | 0.145 mm | 1.0 MΩ | 1µ | Single unit and stim / chronic use |
TM33C20KT | 76mm | 1µ | 0.145 mm | 2.0 MΩ | 1µ | Single unit and stim / chronic use |
TM33C20KTH | 76mm | 1µ | 0.145 mm | 2.0 MΩ | 1µ | Single unit and stim / chronic use |
TM33C40KT | 76mm | 1µ | 0.145 mm | 4.0 MΩ | 1µ | Single unit and stim / chronic use |
TM33C40KTH | 76mm | 1µ | 0.145 mm | 4.0 MΩ | 1µ | Single unit and stim / chronic use |
Tungsten Profile C Comparison Chart, 76 mm long, 0.216 mm shaft
Order code |
Length | Insulation Thickness |
Shaft Diameter |
Nominal Impedance ±20% |
Tip Diameter |
Typical Use |
---|---|---|---|---|---|---|
TM31A10KTB | 76mm | 1µ | 0.216 mm | 1.0 MΩ | 1µ | Multi unit and single unit recording and microstimulation |
TM31A10KTH | 76mm | 1µ | 0.216 mm | 1.0 MΩ | 1µ | Multi unit and single unit recording and microstimulation |
TM31A20KT | 76mm | 1µ | 0.216 mm | 2.0 MΩ | 1µ | Multi unit and single unit recording and microstimulation |
TM31A50KT | 76mm | 1µ | 0.216 mm | 5.0 MΩ | 1µ | Multi unit and single unit recording and microstimulation |
TM31A50KTH | 76mm | 1µ | 0.216 mm | 5.0 MΩ | 1µ | Multi unit and single unit recording and microstimulation |
TM33A10KT | 76mm | 3µ | 0.216 mm | 1.0 MΩ | 1µ | Multi unit and single unit recording and microstimulation |
TM33A10KTH | 76mm | 3µ | 0.216 mm | 1.0 MΩ | 1µ | Multi unit and single unit recording and microstimulation |
TM33A20KT | 76mm | 3µ | 0.216 mm | 2.0 MΩ | 1µ | Multi unit and single unit recording and microstimulation |
Tungsten Profile C Comparison Chart, 76 mm long, 0.356 mm shaft
Order code |
Length | Insulation Thickness |
Shaft Diameter |
Nominal Impedance ±20% |
Tip Diameter |
Typical Use |
---|---|---|---|---|---|---|
TM33B01KT | 76mm | 3µ | 0.356 mm | 0.1 MΩ | 1-2µ | Single and multi unit recording and microstimulation |
TM33B01KTB | 76mm | 3µ | 0.356 mm | 0.1 MΩ | 1-2µ | Single and multi unit recording and microstimulation |
TM33B01KTH | 76mm | 3µ | 0.356 mm | 0.1 MΩ | 1-2µ | Single and multi unit recording and microstimulation |
TM33B05KTH | 76mm | 3µ | 0.356 mm | 0.5 MΩ | 1-2µ | Single and multi unit recording and microstimulation |
TM33B10KTB | 76mm | 3µ | 0.356 mm | 1.0 MΩ | 1-2µ | Single and multi unit recording and microstimulation |
TM33B10KTH | 76mm | 3µ | 0.356 mm | 1.0 MΩ | 1-2µ | Single and multi unit recording and microstimulation |
TM33B20KT | 76mm | 3µ | 0.356 mm | 2.0 MΩ | 1-2µ | Single and multi unit recording and microstimulation |
TM33B20KTH | 76mm | 3µ | 0.356 mm | 2.0 MΩ | 1-2µ | Single and multi unit recording and microstimulation |
Tungsten Profile C Comparison Chart, 127 mm long
Order code |
Length | Insulation Thickness |
Shaft Diameter |
Nominal Impedance ±20% |
Tip Diameter |
Typical Use |
---|---|---|---|---|---|---|
TM53B05KT | 127mm | 3µ | 0.356 mm | 0.5 MΩ | 1µ | Deep penetrations |
TM53A15KT | 127mm | 3µ | 0.216 mm | 1.5 MΩ | 2µ | Deep penetrations for single and multi unit recording and stimulation |
TM53A05KT | 127mm | 3µ | 0.216 mm | 0.5 MΩ | 2µ | Deep penetrations for single and multi unit recording and stimulation |
TM53A20KT | 127mm | 3µ | 0.216 mm | 2.0 MΩ | 2µ | Deep penetrations for single and multi unit recording and stimulation |
TM53B20KT | 127mm | 3µ | 0.356 mm | 2.0 MΩ | 1µ | Deep penetrations |
TM53A10KT | 127mm | 3µ | 0.216 mm | 1.0 MΩ | 2µ | Deep penetrations for single and multi unit recording and stimulation |
TM53B10KT | 127mm | 3µ | 0.356 mm | 1.0 MΩ | 1µ | Deep penetrations |
TM53A10KTH | 127mm | 3µ | 0.216 mm | 1.0 MΩ | 2µ | Deep penetrations for single and multi unit recording and stimulation. Heat treated. |
Elgiloy/Stainless
Order code | Length | Insulation Thickness |
Shaft Diameter |
Nominal Impedance ±20% |
Tip Diameter |
Typical Use | Quantity |
---|---|---|---|---|---|---|---|
SSM123B10KT | 76mm | 3µ | 0.61mm | 1.0 M | 1-2µ | Deep brain studies | Package of 5 |
SSM123B20KT | 76mm | 3µ | 0.61 mm | 1.0 M | 1-2µ | Deep brain studies | Package of 5 |
SSM123B05KT | 76mm | 3µ | 0.61 mm | 0.5 M | 1-2µ | Deep brain studies | Package of 5 |
Pure Iridium
Order code | Length | Insulation Thickness |
Shaft Diameter |
Nominal Impedance ±20% |
Tip Diameter |
Typical Use |
---|---|---|---|---|---|---|
IRM23E05KT | 50mm | 3µ | 0.180 mm | 0.5 MΩ | 2-3µ | Multiunit & ERP recording & stimulation |
IRM23E15KT | 50mm | 3µ | 0.180 mm | 1.5 MΩ | 1-2µ | Single and multiunit recording and stimulation |
IRM23E20KT | 50mm | 3µ | 0.180 mm | 2.0 MΩ | 1-2µ | Greater selectivity & microstimulation |
IRM23E25KT-H | 50mm | 3µ | 0.180 mm | 2.5 MΩ | 1-2µ | Greater selectivity - small cells |
IRM23E30KT | 50mm | 3µ | 0.180 mm | 3.0 MΩ | 1-2µ | Greater selectivity - small cells |
IRM23E50KT-H | 50mm | 3µ | 0.180 mm | 5.0 MΩ | 1-2µ | Greater selectivity - small cells |
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