Abstract: A system and method obtains a respiration parameter of an animal or human, such as respiratory rate, from a blood pressure, volumetric blood flow, blood velocity or stroke volume signal from a sensor for the animal or human. Specifically, the signal is processed to develop an amplitude versus time waveform. A sequence of selected features derived from individual cardiac cycles of the amplitude versus time waveform over a selected time interval are extracted from the developed amplitude versus time waveform. A mathematical model is fitted to the extracted sequence of selected features to yield a fitted mathematical model. The physiologic parameter information is computed from the fitted mathematical model.
Type:
Grant
Filed:
October 29, 2001
Date of Patent:
September 30, 2003
Assignee:
Transoma Medical, Inc.
Inventors:
Gregory P. Doten, Brian P. Brockway, Robert V. Brockway, Richard A. Fundakowski