Cardiac response classification using retriggerable classification windows
First Claim
1. A method of classifying a cardiac response to a pacing stimulation, comprising:
- delivering the pacing stimulation to a heart;
establishing a first classification window subsequent to delivery of the pacing stimulation;
sensing a cardiac signal in the first classification window;
establishing a second classification window if a trigger characteristic of the cardiac signal is detected in the first classification window;
sensing the cardiac signal in the second classification window if the second classification window is triggered; and
classifying the cardiac response to the pacing stimulation based on one or more characteristics of the cardiac signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and devices for classifying a cardiac response to pacing involve establishing a retriggerable cardiac response classification window. A first cardiac response classification window is established subsequent to delivery of a pacing pulse. A cardiac signal following the pacing stimulation is sensed in the first classification window. A second cardiac response classification may be triggered if a trigger characteristic is detected in the first classification window. The cardiac signal is sensed in the second classification window if the second classification window is established. The cardiac response to the pacing stimulation is determined based on characteristics of the cardiac signal. The cardiac response may be determined to be one of a captured response, a non-captured response; a non-captured response added to an intrinsic beat, and a fusion/pseudofusion beat, for example.
-
Citations
61 Claims
-
1. A method of classifying a cardiac response to a pacing stimulation, comprising:
-
delivering the pacing stimulation to a heart;
establishing a first classification window subsequent to delivery of the pacing stimulation;
sensing a cardiac signal in the first classification window;
establishing a second classification window if a trigger characteristic of the cardiac signal is detected in the first classification window;
sensing the cardiac signal in the second classification window if the second classification window is triggered; and
classifying the cardiac response to the pacing stimulation based on one or more characteristics of the cardiac signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
-
-
39. A medical device, comprising:
-
a pulse delivery system configured to deliver a pacing stimulation to a heart;
a sensing system configured to a sense cardiac signal following delivery of the pacing stimulation;
a control system, coupled to the sensing system, and configured to establish a first classification window subsequent to delivery of the pacing stimulation, establish a second classification window if a trigger characteristic of the cardiac signal is detected in the first classification window, and classify the cardiac response to the pacing stimulation based on one or more characteristics of the sensed cardiac signal. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
-
-
60. A medical system, comprising:
-
means for delivering the pacing stimulation to a heart;
means for establishing a first classification window subsequent to delivery of the pacing stimulation;
means for sensing a cardiac signal in the first classification window;
means for establishing a second classification window if a trigger characteristic of the cardiac signal is detected in the first classification window;
means for sensing the cardiac signal in the second classification window if the second classification window is triggered; and
means for classifying the cardiac response to the pacing stimulation based on one or more characteristics of the cardiac signal.
-
-
61. A medical system, comprising:
-
means for delivering the pacing stimulation to a heart;
means for establishing a first classification window subsequent to delivery of the pacing stimulation;
means for sensing a cardiac signal in the first classification window;
means for establishing a second classification window if a trigger characteristic of the cardiac signal is detected in the first classification window;
means for sensing the cardiac signal in the second classification window if the second classification window is triggered;
means for defining one or more detection regions respectively associated with one or more cardiac response types;
means for detecting one or more cardiac signal peaks; and
means for classifying the cardiac response to the pacing stimulation based on a relationship between the cardiac signal peaks and the detection regions.
-
Specification