Probe Specifications



U-ProbeV-ProbeS-Probe
ApplicationIn vivo; acuteIn vivo; acuteIn vivo; acute
Channel counts8, 16 24, or 328, 16 24, or 328, 16 24, or 32
Total Probe Length30 to 150mm30 to 150mm30 to 150mm
Probe OD185 to 360μm185 to 360μm185 to 360μm
Reinforcement tube length5 to 125mm5 to 125mm5 to 125mm
Reinforcement tube outer diameters460 or 640μm460 or 640μm460 or 640μm
Electrode construction15μm Pt/Ir electrode site diameter, circuar shape, HML insulated (polyimide), and secured in medical-grade epoxy15μm Pt/Ir electrode site diameter, circuar shape, HML insulated (polyimide), and secured in medical-grade epoxy15μm Pt/Ir electrode site diameter, circuar shape, HML insulated (polyimide), and secured in medical-grade epoxy
Electrode configurationsSingle, stereotrode or tetrodeSingleSingle, stereotrode or tetrode
Inter-electrode spacing50μm, 75μm, 100μm, 150μm, or 200μm along length of probe;
50μm within stereotrode or tetrode group
50μm, 75μm, 100μm, 150μm, or 200μm along length of probe50μm, 75μm, 100μm, 150μm, or 200μm along length of probe;
50μm within stereotrode or tetrode group
Distance from tip to the closest electrode siteDependant on probe diameter

185 probe diameter: 320μm; 210 probe diameter: 360μm; 236 probe diameter: 410μm

260 probe diameter: 450μm; 300 probe diameter: 520μm; 320 probe diameter: 560μm

360 probe diameter: 620μm

Dependant on probe diameter:

185 probe diameter: 320μm; 210 probe diameter: 360μm; 236 probe diameter: 410μm

260 probe diameter: 450μm; 300 probe diameter: 520μm; 320 probe diameter: 560μm

360 probe diameter: 620μm

 

Dependant on probe diameter
Stimulation optionsSingle: Up to four fluid capillaries and/or optic fibers

Stereotrode or Tetrode: Up to two fluid capillaries and optic fibers

Single: Up to four fluid capillaries and/or optic fibersSingle: Up to four fluid capillaries and/or optic fibers

Stereotrode or Tetrode: Up to two fluid capillaries and optic fibers

 

Fluid capillary ID40μm40μm40μm
Fluid capillary OD60μm60μm60μm
Optic fiber OD50μm50μm50μm
Connector interface8 channel: CON/8o50m-10P
16 channel: 2x CON/8o50m-10P, CON/16m-V or CON/16o25m-18P
24 channel: 3x CON/8o50 or CON/32m-V32 channel: CON/32m-V
8 channel: CON/8o50m-10P
16 channel: 2x CON/8o50m-10P, CON/16m-V or CON/16o25m-18P
24 channel: 3x CON/8o50 or CON/32m-V32 channel: CON/32m-V
8 channel: CON/8o50m-10P
16 channel: 2x CON/8o50m-10P, CON/16m-V or CON/16o25m-18P
24 channel: 3x CON/8o50 or CON/32m-V32 channel: CON/32m-V
LifespanRobust and reusable with a minimum of thirty penetrations, likely many moreRobust and reusable with a minimum of thirty penetrations, likely many moreRobust and reusable with a minimum of thirty penetrations, likely many more
Thumbtack ProbeFloating Microelectrode ArrayMicrowire Array
ApplicationsIn vivo; chronic or acuteIn vivo; chronicIn vivo; chronic or acute
Electrode channels8, 16, or 24N/AN/A
Probe length3mmN/AN/A
Shaft diameter210μm or 500μmN/AN/A
Electrode Sites15μm or 40μm diameter, platinum/iridiumN/AN/A
Tip profileRounded, dome-shapedN/AN/A
Inter-electrode spacing50 to 500μm400μmN/A
Distance from tip to electrode450μmN/AAvailable in increments of 250μm, beginning with 250μm
Silicone tube length between connector and probe10cmN/AN/A
Silicone disk dimensions8mm diameter disk,
0.15mm thick
N/AN/A
Connector interface8mm diameter disk,
0.15mm thick
N/AN/A
Electrode materialN/APlatinum/iridium, pure iridium, or activated pure iridiumN/A
Tip diameterN/A1 to 6μmN/A
ImpedanceN/A10kΩ to 5MΩStainless steel wire:
– 25μm is 0.6 to 0.9MΩ
– 50μm is 0.4 to 0.6MΩ
Platinum/iridium wire:
– 25μm is 0.4 to 0.8MΩ
– 50μm is 0.2 to 0.4MΩ
Electrode countN/A4 to 324 to 32
Electrode lengthN/Aup to 10mmN/A
Electrode configurationsN/AN/A2×4, 4×4, 2×8, 4×8, etc.
Reference electrodeN/AAvailable, but optionalN/A
Reference electrode lengthN/A2.5 to 10mmN/A
Reference wireN/AN/AAvailable, but optional
Ground optionsN/AElectrode or wireN/A
Ground electrode lengthN/A2.5 to 10mmN/A
Ground wireN/AN/AAvailable in stainless steel or silver
Ground wire lengthN/AN/A80mm
Ground wire positioningN/AN/AExtends from the base of the connector
Array dimensionsN/A16 channel array:
1.95 x 2.45 x 0.50 mm
32-channel array:
1.80 x 4.00 x 0.50 mm
N/A
Wire materialN/AN/AStainless steel or platinum/iridium
Wire insulationN/AN/APolyimide or Teflon
Wire bundle/cable lengthN/A1.5 to 20cmN/A
Wire bundle/cable materialN/AGold wires covered with a silicone elastomerN/A
Wire diameterN/A25μm25 or 50μm
Connector countN/ASingle or double1 to 6
Connector typeN/ACON/16o25m-18P
CON/16m-V
CON/32m-V
CON/32o25m-36P
Any Omnetics connector that is compatible with any Plexon headstage
RowsN/AN/A1 to 12
Row spacingN/AN/AAvailable in increments of 250μm, beginning with 250μm
Epoxy lengthN/AN/A3 to 5mm
Length of wire enveloped in PEGN/AN/A1 to 23mm
Length of wire exposed beyond PEGN/AN/A1 to 10mm