Method and apparatus for post-processing of episodes detected by a medical device
First Claim
1. A method of post-processing of sensing data generated by and stored within an implantable medical device, comprising:
- receiving the sensing data from the implantable medical device with an external access device, wherein the sensing data includes sensed atrial events and sensed ventricular events;
determining, with the external access device, in response to the received data, instances where the implantable medical device identified a cardiac event being detected in response to the sensing data; and
determining, with the external access device, in response to the received sensing data, which one of the atria or the ventricles of a heart associated with the sensing data initiated conduction of the heart by at least determining which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart,wherein determining which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart comprises;
identifying a spatial reference point within a portion of the received sensing data comprising sensed atrial and ventricular events from a plurality of cardiac cycles, wherein the spatial reference point is an identified cardiac interval within the received sensing data;
generating a window around the spatial reference point, the window comprising a subset of the sensed ventricular events, in response to the spatial reference point, wherein the subset of the sensed ventricular events comprises a plurality of the sensed ventricular events;
determining numbers of the sensed atrial events between the ventricular events within the subset of sensed ventricular events; and
determining which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart based on the numbers of the sensed atrial events between the ventricular events within the subset of sensed ventricular events.
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Abstract
A method and system of post-processing of sensing data generated by a medical device that includes transmitting a plurality of stored sensing data generated by the medical device to an access device, the stored sensing data including sensed atrial events and sensed ventricular events. The access device determines, in response to the transmitted data, instances where the medical device identified a cardiac event being detected in response to the sensing data, and determines, in response to the transmitted sensing data, whether one of the sensed ventricular events and the sensed atrial events is initiating conduction of a heart associated with the stored sensing data.
50 Citations
8 Claims
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1. A method of post-processing of sensing data generated by and stored within an implantable medical device, comprising:
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receiving the sensing data from the implantable medical device with an external access device, wherein the sensing data includes sensed atrial events and sensed ventricular events; determining, with the external access device, in response to the received data, instances where the implantable medical device identified a cardiac event being detected in response to the sensing data; and determining, with the external access device, in response to the received sensing data, which one of the atria or the ventricles of a heart associated with the sensing data initiated conduction of the heart by at least determining which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart, wherein determining which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart comprises; identifying a spatial reference point within a portion of the received sensing data comprising sensed atrial and ventricular events from a plurality of cardiac cycles, wherein the spatial reference point is an identified cardiac interval within the received sensing data; generating a window around the spatial reference point, the window comprising a subset of the sensed ventricular events, in response to the spatial reference point, wherein the subset of the sensed ventricular events comprises a plurality of the sensed ventricular events; determining numbers of the sensed atrial events between the ventricular events within the subset of sensed ventricular events; and determining which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart based on the numbers of the sensed atrial events between the ventricular events within the subset of sensed ventricular events. - View Dependent Claims (2, 3, 4)
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5. A system for post-processing of sensing data associated with identification of a cardiac event, comprising:
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an implantable medical device generating and storing a plurality of sensing data, wherein the sensing data includes sensed atrial events and sensed ventricular events; an access device located externally from the implantable medical device; and an interface for receiving the sensing data from the implantable medical device with the external access device, wherein the external access device determines, in response to the received data, instances where the medical device identified a cardiac event being detected in response to the sensing data, and which one of the atria or the ventricles of a heart associated with the sensing data initiated conduction of the heart by at least determining which one of the sensed ventricular events and the sensed atrial events is initiating conduction of the heart, wherein the access device; identifies a spatial reference point within a portion of the received sensing data comprising sensed atrial and ventricular events from a plurality of cardiac cycles; generates a window around the spatial reference point, the window comprising a subset of the sensed ventricular events, in response to the spatial reference point, wherein the subset of the sensed ventricular events comprises a plurality of the sensed ventricular events, and wherein the spatial reference point is an identified cardiac interval within the received sensing data; determines numbers of the sensed atrial events between the ventricular events within the subset of sensed ventricular events; and determines which one of the sensed ventricular events or the sensed atrial events initiated conduction of the heart based on the numbers of the sensed atrial events between the ventricular events within the subset of sensed ventricular events. - View Dependent Claims (6, 7, 8)
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Specification