Products
The PL-EEG Headbox family allows for a close adaption to your special diagnostical purposes.
- PL-230
The 21+2 channel headbox for standard EEG applications.
Class I BF certified.
- PL-351
The 32+3 channel headbox with patient key option for standard and advanced EEG applications. Class I CF certified for use in demanding environment - such as OR and ICU.
- PL-440
The convertible 44 channel amplifier allows recordings with 32 EEG inputs and up to 23 polygraphic inputs (with a max. of 45 channels). Class I CF certified.
Beside an electrode cap, a mini junction box and a patient key or other response device, a polygraphy pannel for registration of body movements, position, oxygen saturation, thoracic and abdominal movements, snoring and other DC parameters, EP and EKP can be connected to the headbox. The 11 additional referencial EEG inputs (see picture, upper row of inputs) can be converted into polygraphic inputs by a special multi-connector plug without modifying the hardware of the headbox. This flexible structure allows a lab to upgrade its instruments without purchasing a completely new system, and to use the same headbox for different types of examinations like standard EEG and PSG (sleep polygraphy).
- PL-450
A headbox to record 32 EEG channels and 9 polygraphic or sensor channels for sleep and epilepsie diagnostics, Class I CF certified.
- PL-700
Two combined PL-351 headboxes for improved clinical productivity developed both for the Neurological and ENT/Sleep approach. You may either record 64 EEG channels ref. and 6 polygraphic channels (Class I BF certified), or use the system as two separate PL-351 headboxes (Class I CF).
All head boxes provide the same high data acquisition quality, a TCP/IP network interface, mini head box and electrode cap option.
Behind its front panel of 21 cm width and 16 cm height, a PL-EEG headbox hides high-quality electronic components, and the skill and phantasy of an experienced hardware and software development team.
- Integrated PC
An integrated PC manages transfer of the acquired data via network, and controls the optional photic stimulator allowing for user-definable photic stimulation sequences without any restrictions.
- Analog to digital conversion in the PL-EEG headbox
Conventional pre-amplifiers transfer analog signals to a recording station where they are converted into digital data. Inside PL-EEG headboxes, the signals are digitised at source, and transferred as digital data to the PL-EEG station. Digital data transfer is faster and safer - and the cable from the PL-EEG station to the headbox can be much longer than is possible with analog data transfer: up to 100 m. In fact, nothing more than the electrodes and the headbox would be required in the examination room. The recording station can then be placed in another room, which is ideal for long term recordings and sleep studies.
- High quality waveforms
With analog filters, unwanted frequencies from muscle activity contaminate the waveform far above the filter's cut-off frequencies. For this reason, analog filtering is reduced to a minimum in the PL-EEG headbox. After a first analog filtering, the waveform is sampled at selectable frequencies of 128 Hz up to 1 kHz. Then, a digital filtering is performed within the headbox which allows a data reduction without loss of data quality.
- Reliable network technology
PL-EEG headboxes communicate via the TCP/IP protocol allowing for connection to standard interfaces of computers and notebooks as well as to network wall sockets, e.g. for continuous epilepsy and intensive care monitoring. The acquired data are temporarily saved inside the headboxes to get over intermittend data transfer problems of less reliable network connections.
See more about PL-EEG networks.

Polygraphy Box