Enhanced Ventilation Waveform Device

The Portal is a joint project of MATTO and the MTTC. The development and implementation of the portal has been paid for by the MTTC, Beth Israel Deaconess Medical Center, Boston Biomedical Research Institute, Boston University, Brandeis University, Caritas St. Elizabeth's Medical Center, Boston Children's Hospital, Dana Farber Cancer Institute, Harvard University, Joslin Diabetes Center, Massachusetts Eye and Ear Infirmary, Massachusetts General Hospital, McLean Hospital, Northeastern University, The Schepens Eye Research Institute, and Tufts University.

Intellectual Property

ID:		98-16
IP Type:		Licensable Technology
Title:		Enhanced Ventilation Waveform Device
Inventor:		Lutchen, Kenneth R.
Summary:		A novel ventilator waveform having an enhanced inspiratory flow pattern is ideally suited for determining and effective Òinspiratory impedanceÓ in ventilator-dependent patients, and/or patients with severe obstruction resulting in expiratory flow-limitation. This waveform is refered to herein as the ÒEnhanced Ventilator WaveformÓ (EVW). The EVW maintains ventilatory support while simultaneously providing an accurate and sensible assessment of the mechanical status of the lungs or total respiratory system. The EVW technique of the present invention ensures that normal (tidal) volume levels are delivered during each inspiration, and that expiration remains passive. Furthermore, accurate estimation of lung resistance and elastance is established for several frequencies surrounding the primary ventilator breathing rate. From the resistance and elastance data, the mean level and structural distribution of airway verss tissue constriction conditions in the lung can be inferred. Additionally, the distribution of delivered gas is more uniform (ie more beneficial to the patient) with the EVW, as compared to conventional waveforms.
Tech Type:		Medical Devices
URL:		http://ctf-fmfe.bu.edu/NoPDF.htm
Contact:		Sean Lee, seanlee@bu.edu, 617 353 4567
Organization:		Boston University

Display all intellectual properties for Lutchen, Kenneth R.
Display all intellectual properties for Boston University