The BIS tm system Biofeedback Incentive System tm is a visual analog display on a computer CRT screen of the inspiration and expiration breathing pattern, and in effect defines the entire respiratory cycle. See US Patent No. A very simple linear inspiration and expiration breathing pattern is shown. By definition, as Tidal Volume and Respiratory Rate are fundamental to any breathing pattern, this Volume versus Time display is referred to a the Primary Breathing Pattern . This makes full use of the display area, but the benefits of this display are much more subtle.
Standard displays show small breaths with a small waveform and big breaths with a big waveform.
The small and large breath display in the BIS system looks exactly the same. Likewise a standard display shows a rapid breathing rate as a short, rapidly repeating waveform, and a slow breathing rate as a longer, slowly repeating waveform. Whether a patient is large and breathing slowly, or small and breathing rapidly, their Primary Breathing Pattern is displayed in a standard manner for comparison and research purposes. This is a significant advantage if one is trying to imprint a new breathing pattern in a patient, and a very unique value of this display method will be apparent in the Ventilator Weaning System section. This display technique is under Copyright protection.