ST. JUDE MEDICAL ATRIAL FIBRILLATION DIVISION INC.
发明人:
KOYRAKH, LEV, A.,SCHWEITZER, JEFFREY, A.,STARKS, DANIEL, R.,CARBONERA, CARLOS
申请号：
EP11848900
公开号：
EP2618730A4
申请日:
2011.09.13
申请国别(地区):
EP
年份:
2014
代理人:
摘要：
A method of detecting dislodgement of a navigational reference for a localization system (8) includes securing a reference catheter (29), including at least one reference localization element, at an initial reference location within a localization field. The positions of one or more of the reference localization elements are monitored for a perceived displacement that suggests that the reference catheter (29) has become dislodged from the initial reference location (e.g., a displacement above a certain threshold, such as about 4 mm). The direction of this perceived displacement may then be further analyzed (e.g., compared to a predicted or most likely direction of displacement) to determine whether there has been an actual dislodgement of the reference catheter (29), and, if so, an appropriate signal (e.g., an audible or visual warning) may be generated. Upon dislodgement, guidance may be provided to aid the practitioner in restoring the reference catheter (29) to its initial location.
