发明名称 |
SYSTEMS AND METHODS FOR SELECTIVELY UPDATING CARDIAC MORPHOLOGY DISCRIMINATION TEMPLATES FOR USE WITH IMPLANTABLE MEDICAL DEVICES |
摘要 |
Techniques are provided for updating a morphology template used to discriminate abnormal cardiac rhythms. In one example, a non-weighted candidate morphology template is generated based on far-field R-wave morphology. A weighted candidate morphology template is generated based on an ensemble average of the non-weighted candidate morphology template and a previous (i.e. active) morphology template. The previous morphology template is then selectively updated based on a comparison of additional R-waves against both the non-weighted and the weighted candidate templates. Thereafter, abnormal cardiac rhythms such as ventricular tachycardia and supraventricular tachycardia are discriminated using the updated morphology template based on newly-detected far-field R-waves. These techniques provide a method for updating the morphology discrimination template in response to long-term changes in morphology due to cardiac remodeling or cardiac disease progression. |
申请公布号 |
US2014052012(A1) |
申请公布日期 |
2014.02.20 |
申请号 |
US201213587807 |
申请日期 |
2012.08.16 |
申请人 |
SNELL JEFFERY D.;SLOMAN LAURENCE S.;MORLEY BRUCE A.;PACESETTER, INC. |
发明人 |
SNELL JEFFERY D.;SLOMAN LAURENCE S.;MORLEY BRUCE A. |
分类号 |
A61B5/0464 |
主分类号 |
A61B5/0464 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|