The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2014
Filed:
May. 12, 2006
Magdy Younes, Toronto, CA;
Magdy Younes, Toronto, CA;
YRT Limited, Winnipeg, Manitoba, CA;
Abstract
A method and device for generating a signal that mirrors changes in the level of effort exerted by respiratory muscles of patients on mechanical ventilatory support comprising: monitoring and storing airway pressure (P), rate of gas flow (F), and volume of gas flow (V), and generating a composite pressure signal using resistive pressure units (K) determined from elapsed data and selected to minimize step changes in the calculated signal and elastic pressure units (K) determined from elapsed data by steps comprising: —scanning stored F or Pduring exhalation and identifying where their trajectory transiently reverses direction to detect transients; —selecting points within the exhalation that are at preselected distances away from the transients; —calculating the value of Krequired to force the values of the calculated signal at said selected points in elapsed breaths to be substantially equal when the selected value of Kis used as the flow coefficient.