发明授权
US07203544B2 Detection of evoked post-stimulation potentials, in particular atrial potentials in an active implantable medical device such as cardiac pacemaker, defribillator, cardiovertor or multisite device
有权
诱发后刺激电位的检测,特别是主动植入式医疗装置如心脏起搏器,除颤器,心律转换器或多器件装置中的心房电位
- 专利标题: Detection of evoked post-stimulation potentials, in particular atrial potentials in an active implantable medical device such as cardiac pacemaker, defribillator, cardiovertor or multisite device
- 专利标题(中): 诱发后刺激电位的检测,特别是主动植入式医疗装置如心脏起搏器,除颤器,心律转换器或多器件装置中的心房电位
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申请号: US10745472申请日: 2003-12-22
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公开(公告)号: US07203544B2公开(公告)日: 2007-04-10
- 发明人: Thierry Legay , Dominique Decoene
- 申请人: Thierry Legay , Dominique Decoene
- 申请人地址: FR Montrouge
- 专利权人: Ela Medical S.A.S.
- 当前专利权人: Ela Medical S.A.S.
- 当前专利权人地址: FR Montrouge
- 代理机构: Orrick Herrington & Sutcliffe LLP
- 优先权: FR0216724 20021226
- 主分类号: A61N1/37
- IPC分类号: A61N1/37
摘要:
Detection of an evoked post-stimulation potential, in particular atrial potentials, in an active implantable medical device such as a cardiac pacemaker, a defibrillator, a cardioveter, or a multisite device. This device applies a stimulation pulse (40), then shorts-circuit for a discharge period (42, OCD) the output circuit, which includes discharging a connection capacitor, the self-impedance of the probe, and the impedance of the interface heart-electrode. A detection circuit includes an amplifier and a blanking circuit to temporarily uncouple the input terminal from the amplifier. A sequencer control circuit activates during a first time (micro blanking) the blanking circuit throughout the stimulation pulse (40), activates the discharging circuit with a delay after the application of the stimulation pulse, then inhibits the blanking circuit for a listening period (44), defining at least part of this delay, so as to authorize detection by the amplifier, during the listening period, of the evoked post-stimulation potentials, and then activates the blanking circuit a second time (BLANKING) after the listening period throughout the discharge period (42, OCD).
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