发明名称 |
MONITORING HEMODYNAMIC STATUS BASED ON INTRACARDIAC OR VASCULAR IMPEDANCE |
摘要 |
<p>This disclosure relates to monitoring intracardiac or vascular impedance to determine a change in hemodynamic status by detecting changes in an impedance parameter over cardiac cycles. An example method includes measuring a plurality of impedance values of a path within a patient over time, wherein the path includes at least one blood vessel or cardiac chamber of the patient, and wherein the impedance values vary as a function of blood pressure within the at least one vessel or chamber, determining a plurality of values of an impedance parameter over time based on the measured impedance values, wherein each of the impedance parameter values is determined based on a respective sub-plurality of the impedance values, comparing at least one of the impedance parameter values to at least one prior impedance parameter value, and identifying a change in a cardiovascular parameter related to the blood pressure based on the comparison.</p> |
申请公布号 |
EP2211702(A1) |
申请公布日期 |
2010.08.04 |
申请号 |
EP20090790576 |
申请日期 |
2009.07.17 |
申请人 |
MEDTRONIC, INC. |
发明人 |
ZIELINSKI, TODD, M.;HETTRICK, DOUGLAS, A.;ROUW, MATTIAS |
分类号 |
A61B5/0215;A61B5/053;A61N1/365 |
主分类号 |
A61B5/0215 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|