DETECTION OF FUNCTION OF IMPLANTED MEDICAL DEVICES
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Abstract
A monitoring system and method for monitoring signals from an implantable medical device are disclosed. The monitoring system and method include a monitor configured to detect a radio frequency artifact from the signals of the implantable medical device and circuitry for processing the radio frequency artifact from the signals of the implantable medical device.
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Citations
67 Claims
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1-44. -44. (canceled)
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45. A method for monitoring a signal from an implantable medical device comprising:
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filtering voltage samples from multiple channels of the signal;
detecting at least one of a leading edge and a trailing edge for a pulse;
measuring width of a pulse;
measuring amplitude of the pulse;
validating the pulse;
classifying the pulse; and
storing information about the pulse. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. A system for monitoring a signal from an implantable medical device comprising:
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means for filtering voltage samples from multiple channels of the signal;
means for detecting a leading and trailing edge for a pulse;
means for measuring width of a pulse;
means for validating the pulse;
means for classifying the pulse; and
means for storing information about the pulse. - View Dependent Claims (56, 59, 60, 61, 62, 63, 64, 65)
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57-58. -58. (canceled)
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67. A method for monitoring a signal from an implantable medical device comprising:
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filtering voltage samples from multiple channels of the signal;
processing the signal to determine where pacing stimulus artifact occurs in an ECG and identify heart beats that are paced and heart beats that are not paced and occurrences of pacing that fail to stimulate a heart beat;
detecting at least one of a leading edge and a trailing edge for a pulse, wherein at least one of the leading edge and the trailing edge is detected when the absolute value of the difference between two consecutive samples exceeds a threshold;
measuring width of a pulse wherein the width is measured by determining the difference in time between the leading edge and the trailing edge;
measuring amplitude of the pulse wherein the amplitude is measured by finding a sample having the most extreme value compared to zero between the leading edge and trailing edge;
validating the pulse;
classifying the pulse; and
storing information about the pulse.
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Specification