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:
Jul. 21, 2009
Filed:
Jun. 23, 2005
Paul B. Blanch, Alachua, FL (US);
Vikas Meka, Gainesville, FL (US);
Neil R. Euliano, Gainesville, FL (US);
Paul B. Blanch, Alachua, FL (US);
Vikas Meka, Gainesville, FL (US);
Neil R. Euliano, Gainesville, FL (US);
Convergent Engineering, Inc., Gainesville, FL (US);
Abstract
The present invention describes a method and apparatus for non-invasive prediction of the 'intrinsic positive end-expiratory pressure' (PEEPi) which is secondary to a trapping of gas, over and above that which is normal in the lungs; the presence of PEEPi imposes an additional workload upon the spontaneously breathing patient. Several indicators or markers are presented to detect and quantify PEEPnon-invasively The markers may include an expiratory air flow versus expiratory air volume trajectory, an expiratory carbon dioxide flow versus expiratory air volume trajectory, an expiratory carbon dioxide volume to expiratory air volume ratio, an expiratory air flow at onset of inhalation, a model of an expiratory waveform, a peak to mid-exhalation airflow ratio, duration of reduced exhaled airflow, and a Capnograph waveform shape.