New Access to the Brain
Products
Ambulatory EEG Recorder
The PL-EEG Ambulatory EEG option ALPHA-D16 is an affordable and comprehensive upgrade of your PL-Winsor system for continuous longterm recording of your patient's EEG data at home, in the clinic or up a mountain!
- Very small and lightweight ambulatory recorder with 16 channels, a digital marker channel (for two internal and/or or two external marker switches) and a special channel for battery monitoring.
- 14 EEG channels with one reference and two bipolar channels for ECG, EMG or EOG.
- All channels have an impedance check function.
- Two cells of rechargeables allow continuous operating times up to 60 hours.
- The recorder can be controlled by a PC or Laptop via serial interface (optically decoupled) or an optional wireless transmission (Bluetooth). Predefined measurings also can be started at the recorder directly.
- Data is stored on a Compact Flash Card 512MB to 4GB. In the standard configuration the recorder produces about 15 MBytes of data per hour, so that a 512 MB card allows measuring times up to 34 hours.
- Data can be transmitted to a host computer by serial link or Bluetooth during measurement/recording.
- Once the data is transferred to the PL-EEG database, optional seizure and spike detection software can be used to analyse the data. Along withpatient event markers data can be reviewed quickly and accurately using the easy-to-use segment marking functions.
- PL-Winsor's easy-to-use data pruning is ideal for saving and archiving specific points of interest for comparison with previous diagnostic EEG records or video recordings.
Specification
Dimensions
- Size: 12 x 6.5 x 2.2 cm
- Weight: 170 g (including rechargeables and memory card)
Channels
- 14 EEG channels (6 + 8 channels with REF / 2 bipolar channels)
- Bipolar channels can be modified for ECG, EOG or EMG
- Marker channel
- Battery channel
Technical data of EEG channels
- Amplification rate 615
- Input range ± 2 mV
- Input noise 1.2 µVpp
- Input impedance > 100 MΩ
- Common mode rejection ratio > 77 dB (@50 Hz)
- Frequency range 0.5 ... 60 Hz
- Time constant 0.33 s
Conversion
- Two eight-channel A/D-converters
- Resolution 16 Bit (65536 steps) = 61 nV / Bit
- Sample rate can be set by software (128 or 256 Hz recommended)
Data storage
- Compact Flash Cards (512 MBytes to 4 GBytes)
Power Supply
- Two AA rechargeables (NiMH) or batteries
- Power consumption from 0.5 mA (sleep mode) to 30 mA max.
Operating time
- Up to 60 hours with one set of rechargeables
Connectors
- Three connectors for electrode cables
- One connector for serial port (connection to PC via optical isolated interface)
Accessories
- Two sets of rechargeables, charger and tester
- Compact Flash Card 512 MB
- Optical isolated serial interface (incl. USB adapter)
- Card reader (with USB interface)
- Carrying pouch for the recorder
- Transport case