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1. 发明授权

US07221977B1 Method and apparatus for measuring battery depletion in implantable medical devices 有权
标题翻译：用于测量可植入医疗器械中电池耗尽的方法和装置
公开(公告)号：US07221977B1
公开(公告)日：2007-05-22
申请号：US10877215
申请日：2004-06-25
申请人： Lyle Weaver , Charles Neder , Louis Wong
发明人： Lyle Weaver , Charles Neder , Louis Wong
IPC分类号： A61N1/00
CPC分类号： A61N1/3708 , A61N1/08
摘要： A method and apparatus for measuring battery depletion in an implantable medical device is presented. The apparatus includes first and second switch pairs disposed in series between the battery and a load, and connected in a parallel arrangement with respect to one another. A capacitor is connected in a first polarity between the battery and the load when only first and fourth switches are closed and in a second polarity when only second and third switches are closed. A comparator circuit causes the switches to reverse the capacitor's polarity based on a comparison of the voltage drop across the capacitor to a threshold value. A counter counts the number of times the capacitor reverses polarity, which is proportional to the amount of charge transferred from the battery during its lifetime in the device and indicative of the battery's level of depletion.
摘要翻译：提出了一种用于测量可植入医疗装置中的电池消耗的方法和装置。该装置包括串联设置在电池和负载之间的第一和第二开关对，并且以相对于彼此并联的方式连接。当仅第一和第四开关闭合时，电容器以电池和负载之间的第一极性连接，并且当仅第二和第三开关闭合时，电容器以第二极性连接。比较器电路使得开关根据电容器两端的电压降与阈值的比较来反转电容器的极性。计数器对电容器反转极性的次数进行计数，这与在器件寿命期间从电池传输的电荷量成比例，并指示电池的耗尽水平。

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