Probe Specifications



U-Probe V-Probe S-Probe
Application In vivo; acute In vivo; acute In vivo; acute
Channel counts 8, 16 24, or 32 8, 16 24, or 32 8, 16 24, or 32
Total Probe Length 30 to 150mm 30 to 150mm 30 to 150mm
Probe OD 185 to 360μm 185 to 360μm 185 to 360μm
Reinforcement tube length 5 to 125mm 5 to 125mm 5 to 125mm
Reinforcement tube outer diameters 460 or 640μm 460 or 640μm 460 or 640μm
Electrode construction 15μm Pt/Ir electrode site diameter, circuar shape, HML insulated (polyimide), and secured in medical-grade epoxy 15μm Pt/Ir electrode site diameter, circuar shape, HML insulated (polyimide), and secured in medical-grade epoxy 15μm Pt/Ir electrode site diameter, circuar shape, HML insulated (polyimide), and secured in medical-grade epoxy
Electrode configurations Single, stereotrode or tetrode Single Single, stereotrode or tetrode
Inter-electrode spacing 50μm, 75μm, 100μm, 150μm, or 200μm along length of probe;
50μm within stereotrode or tetrode group
50μm, 75μm, 100μm, 150μm, or 200μm along length of probe 50μm, 75μm, 100μm, 150μm, or 200μm along length of probe;
50μm within stereotrode or tetrode group
Distance from tip to the closest electrode site 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:

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

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

 

Fluid capillary ID 40μm 40μm 40μm
Fluid capillary OD 60μm 60μm 60μm
Optic fiber OD 50μm 50μm 50μm
Connector interface 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
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
Lifespan Robust and reusable with a minimum of thirty penetrations, likely many more Robust and reusable with a minimum of thirty penetrations, likely many more Robust and reusable with a minimum of thirty penetrations, likely many more
Thumbtack Probe Floating Microelectrode Array Microwire Array
Applications In vivo; chronic or acute In vivo; chronic In vivo; chronic or acute
Electrode channels 8, 16, or 24 N/A N/A
Probe length 3mm N/A N/A
Shaft diameter 210μm or 500μm N/A N/A
Electrode Sites 15μm or 40μm diameter, platinum/iridium N/A N/A
Tip profile Rounded, dome-shaped N/A N/A
Inter-electrode spacing 50 to 500μm 400μm N/A
Distance from tip to electrode 450μm N/A Available in increments of 250μm, beginning with 250μm
Silicone tube length between connector and probe 10cm N/A N/A
Silicone disk dimensions 8mm diameter disk,
0.15mm thick
N/A N/A
Connector interface 8mm diameter disk,
0.15mm thick
N/A N/A
Electrode material N/A Platinum/iridium, pure iridium, or activated pure iridium N/A
Tip diameter N/A 1 to 6μm N/A
Impedance N/A 10kΩ to 5MΩ Stainless 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 count N/A 4 to 32 4 to 32
Electrode length N/A up to 10mm N/A
Electrode configurations N/A N/A 2×4, 4×4, 2×8, 4×8, etc.
Reference electrode N/A Available, but optional N/A
Reference electrode length N/A 2.5 to 10mm N/A
Reference wire N/A N/A Available, but optional
Ground options N/A Electrode or wire N/A
Ground electrode length N/A 2.5 to 10mm N/A
Ground wire N/A N/A Available in stainless steel or silver
Ground wire length N/A N/A 80mm
Ground wire positioning N/A N/A Extends from the base of the connector
Array dimensions N/A 16 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 material N/A N/A Stainless steel or platinum/iridium
Wire insulation N/A N/A Polyimide or Teflon
Wire bundle/cable length N/A 1.5 to 20cm N/A
Wire bundle/cable material N/A Gold wires covered with a silicone elastomer N/A
Wire diameter N/A 25μm 25 or 50μm
Connector count N/A Single or double 1 to 6
Connector type N/A CON/16o25m-18P
CON/16m-V
CON/32m-V
CON/32o25m-36P
Any Omnetics connector that is compatible with any Plexon headstage
Rows N/A N/A 1 to 12
Row spacing N/A N/A Available in increments of 250μm, beginning with 250μm
Epoxy length N/A N/A 3 to 5mm
Length of wire enveloped in PEG N/A N/A 1 to 23mm
Length of wire exposed beyond PEG N/A N/A 1 to 10mm