专利名称：ECG LEAD-OFF DETECTION USING PHASE
SHIFT OF RECOVERED TRANSTHORACIC
IMPEDANCE RESPIRATION SIGNAL去皱纹的方法
发明人：William J. Derby, JR.
鸦雀无声的近义词
申请号：US12239549赞美词
申请日：20080926
公开号：US20100081949A1
公开日：
20100401一个人的好天气
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摘要：A lead-off detector is disclod for detection of a change of connection state of one or more of the electrical leads which are ud to connect a physiological monitoring
device, such as an Electrocardiogram (“ECG”) monitoring device, with the subject, e.g. patient, being monitored. The disclod lead-off detector detects such changes rapidly and is not nsitive to electrical noi or thermal fluctuations. For example, the disclod embodiments may detect disconnection and/or connection of one or more electrical leads and may further detect connection and/or disconnection of one or more electrical leads from the monitoring device, the subject, intervening coupling devices, or a combination thereof. In one embodiment, the disclod lead-off detector is ud in conjunction with a three lead ECG monitor with Transthoracic Impedance Respiration (“TIR”) functionality but may also be utilized with other types of physiological monitoring devices. The disclod lead-off detector measures a pha difference between a signal transmitted to the subject and a signal received therefrom. Wherein the electrical leads are properly connected, the pha difference will be below a defined threshold. However, when one or more of the electrical leads becomes disconnected in some manner, the pha difference between the transmitted signal and the received signal will exceed the threshold. In an alternate embodiment, the clock frequency of
the transmitted signal is further compared with the clock frequency of the received signal to detect transitions between the lead connection states and indicate a lead-off event so as avoid noi generated therefrom, referred to as “lead noi”, from being further procesd.鲜虾菌菇汤
申请人：William J. Derby, JR.
地址：Bethlehem PA US
国籍：US
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