发明名称 |
INTRAVASCULAR SENSING METHOD AND SYSTEM |
摘要 |
Methods and systems for calculating a corrected Fractional Flow Reserve. Methods include delivering a pressure sensing device including a pressure sensor to a location in an artery having a stenosis, positioning the pressure sensor distal to the stenosis, measuring the distal pressure, measuring the proximal pressure, and calculating a corrected Fractional Flow Reserve using the measured proximal and distal pressures and applying a correction factor or correction equation. The correction factor or correction equation corrects for changes in the measured distal pressure caused by a presence of the pressure sensing device. A data set of correction factors or correction equations may be stored in a memory component of the system. The corrected Fractional Flow reserve may approximate the Fractional Flow Reserve that would be obtained if a different sized device was used to measure the distal pressure, such as a pressure sensing guidewire having a 0.014 inch outer diameter. |
申请公布号 |
EP2706908(A1) |
申请公布日期 |
2014.03.19 |
申请号 |
EP20120731771 |
申请日期 |
2012.05.11 |
申请人 |
ACIST MEDICAL SYSTEMS, INC. |
发明人 |
SUCHECKI, TODD, M.;EVANS, ALAN, K. |
分类号 |
A61B5/0215;A61B5/02 |
主分类号 |
A61B5/0215 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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