Featuring The Albert Grass Heritage® PSG

The Albert Grass Heritage PSG System are state-of-the-art polysomnographs with features, versatility and quality that you have come to expect from Grass. The System features the precise and versatile Neurodata Amplifier System, Windows-based PSG software, specially developed precious metal Electrode Selectors, and the highest quality computer hardware. The Heritage PSG System is the first digital PSG ready to carry on the Grass tradition as the Gold Standard in sleep recordings.

The Heritage PSG includes miniature precious metal electrode selectors which offer a unique solution for electrode substitution without disturbing the sleeping subject. A push of the button allows access to spare electrodes from the Heritage cart. With this system, complete new recording montages can be created from a remote location.

Each channel of the Heritage utilizes a dedicated "Gold Standard" fully programmable amplifier with independent amplification and filter settings for signal fidelity. All low pass filters are active anti-aliasing filters for superb performance. True patient isolation is maintained and the wide parameters allow each amplifier to be used for any signal type. For special applications such as pH, esophageal pressure, respiratory flow, requiring DC signal processing from various transducers, optional DC amplifiers can be provided.

The Heritage is supplied with very friendly 32-channel acquisition software. Gamma is a Windows-based package designed specifically for all-night polysomnography. It offers an extremely easy to use, highly interactive interface that all sleep professionals will find powerful and friendly. Gamma provides special scoring functions for marking and annotating records in real-time and also during review. The sleep report generator creates highly formatted comprehensive sleep scoring reports from the scoring information, including trend charts, staging hypnograms and more. Powerful analysis features include Zoom views, Trend views, and FFT Spectral Analysis. Additional calculations on channel waveform segments include MIN, MAX and MEAN values, Standard deviation, Integral, Area, Rate in B/M, Peak-Peak voltages, and Time and Amplitude readings at the cursors.

Real-time data is stored on the system internal hard drive with data archiving to CD-R/RW. Each CD-R/RW can hold up 650 or 700 MB of data. Enough for approximately eight, 16-channel all-night recordings. The Heritage is network ready and allows for viewing, scoring, printing, or archiving data.

Digital video is offered for the Heritage for capturing the sleeping subject. This option provides synchronous video and data to be captured on the system hard drive. Both black and white and color cameras can be provided.