Back to results
US 2005/0038482 A1Published application
EMI detection for implantable medical devices
AssigneeCardiac Pacemakers, Inc.
InventorsDavid Yonce, Luke Babler
Life of this patent
Estimating the term…
Abstract
A method and system for the detection of electromagnetic interference is disclosed in which a telemetry coil or other magnetic sensor is used to detect a magnetic signal. If a magnetic signal is determined to be a non-telemetry signal and is time-correlated with the onset of an increase in heart rate, electromagnetic interference is assumed to be present.
Claims20
A method for operating an implantable cardiac device in order to detect the presence of electromagnetic interference (EMI), comprising:
- monitoring a heart rate via a sensing channel which incorporates an implanted lead;
- monitoring for the presence of a magnetic signal with a magnetic sensor;
- determining whether a detected magnetic signal is a magnetic noise signal or a valid telemetry signal;
- and,
- detecting the presence of EMI if detection of a magnetic noise signal is time-correlated with an increase in the monitored heart rate.
2 more elements
An implantable cardiac device configured to detect the presence of electromagnetic interference (EMI), comprising:
- means for monitoring a heart rate via a sensing channel which incorporates an implanted lead;
- means for monitoring for the presence of a magnetic signal with a magnetic sensor;
- means for determining whether a detected magnetic signal is a magnetic noise signal or a valid telemetry signal;
- and,
- means for detecting the presence of EMI if detection of a magnetic noise signal is time-correlated with an increase in the monitored heart rate.
2 more elements
Dependencies are inferred from the claim text.