Methods and systems for adaptive base flow and leak compensation

US9498589B2 · kind B2 · utility

Assignee

• Covidien LP · US

Inventors

• Mehdi M. Jafari · Laguna Hills, US
• Milenko Masic · San Diego, US
• Rhomere S. Jimenez · Winchester, US
• Jeffrey K. Aviano · Escondido, US
• Edward R. McCoy · Vista, US

Key dates

• Filing date: Dec 31, 2011
• Grant date: Nov 22, 2016
• Expiry date: Aug 17, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2230/40
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

This disclosure describes systems and methods for providing adaptive base flow scheduling during ventilation of a patient to optimize patient-machine synchrony and accuracy of estimated exhaled as well as inhaled tidal volumes. Further, this disclosure describes systems and methods for providing adaptive inspiratory trigger threshold scheduling during the adaptive base flow scheduling. Further still, this disclosure describes systems and methods for determining an estimated leak flow and adjusting the adaptive base flow scheduling and the adaptive inspiratory trigger threshold scheduling based on the estimated leak flow. Moreover, this disclosure describes systems and methods for determining a change in the estimated leak flow and adjusting the adaptive base flow scheduling and the adaptive inspiratory trigger threshold scheduling based on the change in the estimated leak flow.