HSE-HA NEURODYN for Neurologic Studies
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- 16-channel data acquisition software for Neurologic experiments
For Windows®
- To measure and evaluate signals such as EEG, aortic and venous
blood pressure, aortic blood flow, pO2, pCO2, pH, temperature,
etc.
- Can be extended to other haemodynaic and respiratory parameters
- Analysis of somatosensory evoked potentials and cerebral
autoregulation as option available
- Easy to use, reduced settings by using configuration files
- Storage of raw data with possibility for replay (complete
experiments can be replayed)
- Indication of the measured signals and parameters online
in numerical tabular form or graphical detail and trend windows
- Allows data exchange interface by converting the data into
the ASCII delimited format
- Monitors the experimental sequence by placing event markers
and concentration information
- Very easy graphical selection of specific data points by
cursors for evaluation, data reduction and export
- Export of a raw data sequence into ASCII delimited format
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The HSE-HA NEURODYN software can be adapted to virtually any
experimental investigation for neurologic experiments. Acquisition
can cover signals such as EEG, aortic and venous blood pressure,
aortic flow, pO2, pCO2, pH, temperature, etc. It can be extended
to many other circulation or respiratory signals. Various parameters
can be derived from these signals, e.g. systolic, diastolic, mean
and heart rate, minimal, maximal, and mean flows, etc. During
data acquisition, all acquired signals and derived parameters
are stored on the hard disc and can be displayed on the screen.
EEG analysis using FFT is done in the replay mode.
Dedicated options for controlling and evaluating somatosensoric
evoked potentials as well as cerebral autoregulation (or both)
are available.
The HSE-HA NEURODYN software is available in a basic version which
includes the minimal necessary algorithms that can be upgraded
to a more complex system including all the available algorithms.
The configuration of the system is defined in configuration files
to reduce the amount of settings necessary and to ensure a stable
and secure system. The user only needs to calibrate the signals
and fix the graphics scaling. All the hardware definitions and
algorithms used are defined in the configuration files. This reduces
the amount of information necessary in the SOP and the possibility
of wrong settings. The configuration files can be changed and
the software used in combination with a set of different configuration
files to match the different experiments.
The HSE-HA Data Acquisition Hardware for NEURODYN software
is available in three versions:
- PLUGSYS Version for direct connection to PLUGSYS System
- Stand Alone Version
- Stand Alone Version USB
Hardware Requirements for Haemodyn:
The PLUGSYS and Stand Alone versions require the following
computer hardware:
- Computer PC Pentium at least 500 MHz with one free PCI-slot,
RAM 128 Mbytes or better 256 Mbytes
- Operating System Windows® 2000/NT or XP
- Hard Disk Space at least 20 Gbytes
- Floppy Drive 1.44 Mbytes
- CD-ROM Drive Required
- Monitor 17 or 19
- Backup Media MO drive, CD recorder or ZIP drive
Commonly used signals on neurologic experiments are:
- EEG Electroencephalogram
- AP Arterial Pressure
- VP Venous Pressure
- AF Arterial Blood Flow
The basic version of NEURODYN calculates the following parameters:
online:
- From All Pressure signals: Systolic, Diastolic and Mean Pressure,
Heart Rate
- From All Flows signals: Mean, Max. and Min. Flow
After the experiment in replay mode:
From EEG:
- FFT evaluation with power spectrum
- Bandpass Filter display and evaluation for Alpha, Beta, Theta
and Delta wave activity
Optional software modules are available for:
- Somatosensory stimulation control and evaluation
- Cerebral autoregulation control and evaluation
- Other cardiovascular signals
- LVP module: LVPsys, LVPdia, LVPEDP, dP/dtmin, dP/dtmax, Heart
Rate, Mean Pressure
- LVP Advanced module: Tau, Time to Peak (Contractility Time),
Relaxation Time and Contractility Index CI = dP/dtmax / P
- Flow Advanced module: Endsystolic Flow, Enddiastolic Flow
- Respiration Module: Respiratory Rate, Max. Inspiratory Flow,
Max. Expiratory Flow, Tidal Volume

HUGO SACHS ELEKTRONIK-HARVARD
APPARATUS GmbH
Gruenstrasse 1 · D-79232 March-Hugstetten · GERMANY
Phone: +49 (0) 76 65 - 92 00-0 · Fax: +49 (0) 76 65 - 92
00-90