US20060293591A1 Implantable medical device with MRI and gradient field induced capture detection methods

摘要

• 问题:MRI magnetic field在telemetry antenna和lead conductor上诱发电压电流,可导致组织热损伤和误刺激
• 方案:实时双路monitoring(antenna+lead voltage)+自动MRI-safe mode切换,包括inhibit pacing/sensing或设置overdrive rate
• 效果:未公开/无定量
• 形态:权利要求20条,可调维度:antenna和lead voltage阈值、采样率、M-out-of-N检测条件、safe mode持续时间和具体参数

关联

• 原文(Google Patents):https://patents.google.com/patent/US20060293591A1/en
• 危害:Hazard-rf-heating
• 危害:Hazard-rf-malfunction