Inversion-based feed-forward compensation of inspiratory trigger dynamics in medical ventilators
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United States of America Patent
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Aug 5, 2014
Grant Date -
Mar 25, 2010
app pub date -
Sep 24, 2009
filing date -
Sep 25, 2008
priority date (Note) -
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Abstract
A ventilator and method of ventilator control. The ventilator includes a pneumatic system for providing and receiving breathing gas, and a controller operatively coupled with the pneumatic system. The controller employs closed-loop control to provide positive breathing assistance to a patient. Supplemental feed-forward compensatory assistance is also provided, in addition to and independently of that commanded by the closed-loop control. The supplemental assistance may be determined, set or selected based on a ventilator parameter and/or an operator parameter, and/or as an automatic ongoing compensatory mechanism responding to varying patient respiratory demand.
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