Introduction

The systems described in this section are diagnostic units designed to provide the medical team with specific information about patient status in the fields of neurology, with the utility of laboratory-based, ambulatory, and long-term electroencephalographic monitoring, and sleep disorder medicine with the application of instrumentation designed to monitor various physiological functions during the night.

Grass pioneered the design of both types of instrumentation having designed the first reliable electroencephalographs post World War II, which were later used to study the EEG during the sleep-wake cycle in the 1950s. Indeed, the reliability and economical operation of these early electroencephalographs played a significant role in the advancement of knowledge in these areas.

TWin®, a Windows-based EEG, and PSG software platform is used in most systems including the review stations. A complete line of accessories include printers, video instrumentation for the synchronization of the electrographic data with the patient image, and various sensors and transducers for monitoring physiological signals.

A comprehensive line of clinical systems is marketed under the Grass Technologies trademark. Some of the more popular models covered in this catalog are:

PSG Systems EEG/LTM Systems
Comet XL Lab-based PSG
compact and versatile with up to 50 available channels and TWin software
Comet XL Lab-based EEG
compact and versatile with up to 50 available channels and TWin software
Comet Portable PSG
compact and versatile with up to 50 available channels and TWin software
Comet Portable EEG
compact and versatile with up to 50 available channels and TWin software
AURA PSG Ambulatory Systems
a compact and versatile 25-channel Ambulatory system with TWin software
TREA Ambulatory EEG System
TREA is the newest ambulatory EEG systemwith 25-channel and has the capability of recording data for 72-hours
AURA PSG LITE Ambulatory Sleep Screener
16-channel Ambulatory Sleep Screener with TWin software. Use it at home for ambulatory screening and use it in the lab for a full PSG.

AURA24 Ambulatory EEG System
provides 24-hour Ambulatory EEG recording with 28 channels with data storage to an internal CompactFlash card

SleepTrek3 Portable Sleep Screener
6-channel Type III Home Sleep Screener is a small lightweight physiological data recorder specifically designed to assist the clinician in the diagnosis of sleep-disordered breathing
Beehive Horizon Long-term Monitoring
40-channel system. Features include ultra small AURA amplifiers for the patient to wear, Panorama synchronized digital video and audio, and powerful TWin software with exclusive SzAC spike and seizure detection software. Upgrades to 128 channels.
 

Beehive Horizon Portable
Video EEG & Epilepsy Monitoring with 32-channels