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:
Oct. 03, 2017
Filed:
Dec. 22, 2015
Acist Medical Systems, Inc., Eden Prairie, MN (US);
Todd M. Suchecki, Robbinsdale, MN (US);
Alan K. Evans, Otsego, MN (US);
ACIST Medical Systems, Inc., Eden Prairie, MN (US);
Abstract
Described herein are methods and systems for calculating a corrected Fractional Flow Reserve (FFR). An illustrative method includes delivering a first pressure sensing device including a pressure sensor to a location in a blood vessel having a stenosis, positioning the pressure sensor distal to the stenosis, measuring the distal pressure, measuring the proximal pressure, and calculating a corrected FFR using the measured proximal and distal pressures and applying a correction factor or correction equation. The corrected FFR may approximate a FFR that would have been obtained if the pressure measured downstream of the stenosis was measured using a second pressure sensing device having a second maximum cross-sectional area in a distal portion of the second pressure sensing device that is different from the first maximum cross-sectional area.