发明名称 |
Methods for detecting propensity for fibrillation |
摘要 |
A method for detecting a heart disorder comprises examination of a phase-plane plot (PPP) of a patient electrocardiogram (EKG). The PPP's degree of deterministic chaos may be measured by a processor. Analysis of the PPP may indicate a propensity for fibrillation, that is, indicate both the risk of fibrillation and its actual onset (cases where risk is 100 percent). A second method for detecting a heart disorder comprises examination of a frequency-domain transform (such as an FFT) of a patient EKG. An automatic defibrillating device may comprise means for delivering a variable shock, the size of which is determined at least in part by the FFT's peak energy. A method for detecting drug toxicity comprises examination of a parameter time constant for an action-potential duration (APD) restitution curve which is constructed for the patient.
|
申请公布号 |
US5678561(A) |
申请公布日期 |
1997.10.21 |
申请号 |
US19950567176 |
申请日期 |
1995.12.11 |
申请人 |
CEDARS-SINAI MEDICAL CENTER |
发明人 |
KARAGUEUZIAN, HRAYR S.;DIAMOND, GEORGE A.;KHAN, STEVEN S.;DENTON, TIMOTHY A.;EVANS, STEVEN |
分类号 |
A61N1/08;A61N1/38;A61N1/39;G06F17/00;(IPC1-7):A61B5/045 |
主分类号 |
A61N1/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|