发明授权
- 专利标题： Assessing cardiac contractility and cardiovascular interaction
- 专利标题（中）： 评估心脏收缩力和心血管相互作用
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申请号： US962847申请日： 1997-11-03
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公开(公告)号： US6090047A公开(公告)日： 2000-07-18
- 发明人: David A. Kass , Hideaki Senzaki , Chen-Huan Chen
- 申请人： David A. Kass , Hideaki Senzaki , Chen-Huan Chen
- 申请人地址： MD Baltimore
- 专利权人： Johns Hopkins University, School of Medicine
- 当前专利权人： Johns Hopkins University, School of Medicine
- 当前专利权人地址： MD Baltimore
- 主分类号： A61B5/029
- IPC分类号： A61B5/029 ; G06F17/00 ; A61N5/00
摘要：
A novel method for estimating the end-systolic pressure-volume relationship (ESPVR) is presented. The method provides for accurate estimation of the ESPVR from a single beat of the cardiac cycle. The method is based on normalized human time varying elastance curves [E.sub.N (t.sub.N)]. The ESPVR is estimated from one beat using PV data measured at normalized time t.sub.N and end-systole (t.sub.max) to predict intercept: ##EQU1## and slope: E.sub.max(SB) =P(t.sub.max)/[V(t.sub.max)-V.sub.0(SB) ]. The present invention provides a method for ESPVR estimation which is non-invasive and particularly applicable for bedside applications.
公开/授权文献
- US5323198A Film winding apparatus 公开/授权日：1994-06-21
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