Randolph K. Armstrong;Albert A. Rodriguez;Steven E. Maschino
发明人:
Randolph K. Armstrong,Albert A. Rodriguez,Steven E. Maschino
申请号：
US11925746
公开号：
US08942798B2
申请日:
2007.10.26
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A method, apparatus, and system for determining an adverse operational condition associated with a lead assembly in an implantable medical device used for providing a therapeutic electrical signal to a cranial nerve. A first impedance associated with the lead assembly configured to provide the therapeutic electrical signal to a cranial nerve is detected. A determination is made as to whether the first impedance is outside a first predetermined range. A second impedance is detected. The detection of the second impedance is performed within a predetermined period of time from the time of the detection of the first impedance. A determination is made as to whether the second impedance is outside a second predetermined range. If the first impedance is outside the first range and the second impedance is outside the second range, the implantable medical device is prevented from providing the therapeutic electrical signal.
