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REDUCTION OR ELIMINATION OF PACE POLARIZATION EFFECTS
专利权人:
Inc.;Medtronic
发明人:
Robert W. Stadler,Subham Ghosh
申请号:
US14216100
公开号:
US20140277247A1
申请日:
2014.03.17
申请国别(地区):
US
年份:
2014
代理人:
摘要:
The present disclosure relates to cardiac evoked response detection and, more particularly, reducing polarization effects in order to detect an evoked response following delivery of a stimulation pulse. An implantable medical device (IMD) is configured to deliver a ventricular pacing pulse. A signal is sensed in response to the ventricular pacing stimulus. A window is placed over the sensed signal to obtain a set of data from the signal after a paced event. The set of data extracted from the sensed signal comprises a maximum amplitude, a maximum time associated with the maximum amplitude, a minimum amplitude, and a minimum time associated with the minimum amplitude. Responsive to processing the extracted data, the window is delayed to avoid polarization effects. A determination is then made as to whether the ventricular pacing stimulus is capturing the paced ventricle in response to determining whether the maximum time is greater than the minimum time.
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