Lev A. Koyrakh,Eric J. Voth,John A. Hauck,Jeffrey A. Schweitzer
申请号：
US12980515
公开号：
US09113807B2
申请日:
2010.12.29
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A system for determining a location of an electrode of a medical device (e.g., a catheter) in a body of a patient includes a localization block for producing an uncompensated electrode location, a motion compensation block for producing a compensation signal (i.e., for respiration, cardiac, etc.), and a mechanism for subtracting the compensation signal from the uncompensated electrode location. The result is a corrected electrode location substantially free of respiration and cardiac artifacts. The motion compensation block includes a dynamic adaptation feature which accounts for changes in a patients respiration patterns as well as intentional movements of the medical device to different locations within the patients body. The system further includes an automatic compensation gain control which suppresses compensation when certain conditions, such as noise or sudden patch impedance changes, are detected.
