David R. Hampton;Daniel Yerkovich;Cynthia P. Jayne;Patricia O'Hearn;Paula Lank;William E. Crone;Tae H. Joo;Ronald E. Stickney;James W. Taylor
发明人:
Tae H. Joo,Ronald E. Stickney,Cynthia P. Jayne,Paula Lank,Patricia O'Hearn,David R. Hampton,James W. Taylor,William E. Crone,Daniel Yerkovich,Patricia OHearn
申请号：
US13032250
公开号：
US08239024B2
申请日:
2011.02.22
申请国别(地区):
US
年份:
2012
代理人:
摘要：
The presence of a cardiac pulse in a patient is determined by evaluating physiological signals in the patient. In one embodiment, a medical device evaluates two or more different physiological signals, such as phonocardiogram (PCG) signals, electrocardiogram (ECG) signals, patient impedance signals, piezoelectric signals, and accelerometer signals for features indicative of the presence of a cardiac pulse. Using these features, the medical device determines whether a cardiac pulse is present in the patient. The medical device may also be configured to report whether the patient is in a VF, VT, asystole, or PEA condition, in addition to being in a pulseless condition, and prompt different therapies, such as chest compressions, rescue breathing, defibrillation, and PEA-specific electrotherapy, depending on the analysis of the physiological signals. Auto-capture of a cardiac pulse using pacing stimuli is further provided.
