|
CCU1 CONSTANT CURRENT UNIT |
|
Certain
electrode types and/or experimental conditions can produce
a significant variation in electrode impedance. In these cases,
the Model CCU1 can be used to convert constant voltage stimulation
to constant current. Applications include: cortical, depth,
nerve and surface stimulation; EMG stimulation, tissue lesion
making and others.
|
| Method
of Isolation |
|
No
Built-in Isolation |
| Intended
Use |
|
Research;
DC and Pulsatile; High Current Levels |
| Constant
Voltage Ranges |
|
50
ľA to 50 mA in 3 ranges |
| Output
Waveform |
|
DC
and pulses. 50 ľA to 50 mA output current in three ranges with
150 volt compliance |
| Compatibility |
|
S48,
S88, S11, S8800 Stimulators |
| Power |
|
Powered
by stimulus pulses, no additional power source required |
| Physical
Size |
|
4.75"
W x 3.25" H x 5.5" D
(12 cm x 8.25 cm x 14 cm) |
|
Weight |
|
1.75
lbs. (0.8 kg) |
| Model
CCU1 |
|
Constant
Current Unit and manual |
| Model
M578H96 |
|
Spare
CCU1 manual |
|
|
|
ELECTRODES (with GRASS SAFELEAD™ Protected Terminals) |
|
Model
F-BSE1
Bipolar Stimulating
The F-BSE1 Bipolar Stimulating Electrode may be used with
any Isolated Grass Stimulator or Stimulus Isolation Unit.
It may be gas or steam sterilized and is completely autoclavable.
The interelectrode distance is set at 5 mm but can be adjusted.
The electrode tips are highly polished gold-plated silver
balls. The electrode wire is insulated so only the gold ball
tips are exposed.
|
|
| Tips |
|
2
mm diameter polished gold-plated balls |
| Electrode
Wire Length |
|
2
inches (50 mm) |
| Interelectrode
Distance |
|
Adjustable,
set to 5 mm |
| Probe
Body |
|
Delrin®,
5 inches (13 cm) long, covered with Polyolefin tubing |
| Cable |
|
Twisted
pair, silicone coated, 12 feet (3.6 m) terminating in 0.059-inch
diameter (1.5 mm) insulated female connectors |
| |
Model
F-E10S2 Bipolar
Surface Stimulating Electrode
Contains two 8 mm diameter stainless-steel electrodes in Delrin
holder. 21 mm interelectrode distance. Includes 30-inch (76
cm) lead wires with 0.059-inch (1.5 mm) diameter insulated female
jacks. |
| |
Model
F-E10SG1 Ground
Electrode
Velcro® circumferential bandage-type electrode for arms.
Used in somatosensory EP studies. Six-month warranty. |
| |
|
|
Model
F-E10SG2
Grounding Electrode
Same
as F-E10SG1 except larger for legs.
|
|
|
Model
F-BSE1
|
|
Bipolar
Stimulating Electrode
|
| Model
F-E10S2 |
|
Bipolar
Surface Stimulating Electrode |
| Model
F-E10SG1 |
|
Ground
Electrode |
| Model
F-E10SG2 |
|
Grounding
Electrode |
|
|
