发明名称 |
Method and apparatus for blanking T-waves from combipolar atrial cardiac signals based on expected T-wave locations |
摘要 |
The stimulation device blanks T-waves from the atrial channel of an electrical cardiac signal by employing a T-wave blanking interval localized to the expected location and duration of the T-wave. To this end, the stimulation device determines the average interval between an R-wave and a T-wave in the patient in which the device is implanted and also determines the average duration of a T-waves within the patient. A T-wave blanking interval is initiated following the average R-T interval subsequent to detection of an R-wave and lasts for a period of time equal to the average T-wave duration. In this manner, highly localized T-wave blanking is achieved permitting P-waves or other atrial signals to be detected during remaining non-blanked portions of the atrial channel of the cardiac signal at least for the purposes of atrial rate detection. The relatively short T-wave blanking interval of the invention is particularly well suited for use in combipolar sensing systems. Method and apparatus implementations are described.
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申请公布号 |
US6862471(B1) |
申请公布日期 |
2005.03.01 |
申请号 |
US20010033254 |
申请日期 |
2001.10.25 |
申请人 |
PACESETTER, INC. |
发明人 |
MCCLURE KELLY H.;FLORIO JOSEPH J.;BORNZIN GENE A. |
分类号 |
A61B5/0452;(IPC1-7):A61B5/045 |
主分类号 |
A61B5/0452 |
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