Method for discriminating anodal and cathodal capture
First Claim
1. A method for discriminating between cathodal and anodal cardiac capture during bipolar electrical stimulation, the method comprising:
- delivering a first pacing pulse using a first candidate cathode electrode positioned along a heart chamber and a universal anode;
measuring a first control response to the first pacing pulse;
delivering a plurality of second pacing pulses using a plurality of candidate bipoles comprising the first candidate cathode electrode paired with each of a plurality of anodes positioned along the heart chamber;
measuring a bipolar response to the plurality of second pacing pulses for each of the plurality of candidate bipoles;
establishing a threshold response and a threshold range;
comparing the first control response to the threshold response;
responsive to the first control response meeting the threshold response, classifying the first control response as normal and comparing each of the bipolar responses to the first control response; and
classifying each of the bipolar responses for the plurality of candidate bipoles, wherein a given bipolar response for an associated candidate bipole of the plurality of bipoles is classified as normal if the given bipolar response is within the threshold range of the first control response and classified as abnormal if the bipolar response is outside the threshold range of the first control response.
0 Assignments
0 Petitions
Accused Products
Abstract
An implantable device and associated method discriminate between cathodal and anodal capture during electrical stimulation. A control response to a pacing pulse delivered using a candidate cathode electrode and a universal anode and responses to bipolar pacing pulses delivered using candidate bipoles including the candidate cathode are measured. Responsive to the control response meeting a threshold response, the control response is classified as normal and each of the responses for the candidate bipoles are compared to the control response. The responses for the candidate bipoles are each classified based on the comparison.
-
Citations
23 Claims
-
1. A method for discriminating between cathodal and anodal cardiac capture during bipolar electrical stimulation, the method comprising:
-
delivering a first pacing pulse using a first candidate cathode electrode positioned along a heart chamber and a universal anode; measuring a first control response to the first pacing pulse; delivering a plurality of second pacing pulses using a plurality of candidate bipoles comprising the first candidate cathode electrode paired with each of a plurality of anodes positioned along the heart chamber; measuring a bipolar response to the plurality of second pacing pulses for each of the plurality of candidate bipoles; establishing a threshold response and a threshold range; comparing the first control response to the threshold response; responsive to the first control response meeting the threshold response, classifying the first control response as normal and comparing each of the bipolar responses to the first control response; and classifying each of the bipolar responses for the plurality of candidate bipoles, wherein a given bipolar response for an associated candidate bipole of the plurality of bipoles is classified as normal if the given bipolar response is within the threshold range of the first control response and classified as abnormal if the bipolar response is outside the threshold range of the first control response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A medical device for discriminating between cathodal and anodal cardiac capture, comprising:
-
a plurality of electrodes for sensing cardiac signals and delivering cardiac pacing pulses; a therapy delivery module for delivering cardiac pacing pulses to a patient'"'"'s heart via the plurality of electrodes; cardiac signal sensing circuitry for receiving signals from the plurality of electrodes; a memory storing an established threshold response and an established threshold range; and a controller configured to; control the therapy delivery module to deliver a first pacing pulse using a first candidate cathode electrode positioned along a heart chamber and a universal anode; measure a first control response to the first pacing pulse; control the therapy delivery module to deliver a plurality of second pacing pulses using a plurality of candidate bipoles comprising the first candidate cathode electrode paired with each of a plurality of anodes positioned along the heart chamber; measure a bipolar response to the second pacing pulses for each of the plurality of candidate bipoles; compare the first control response to the threshold response; responsive to the first control response meeting the threshold response, classifying the first control response as normal and comparing each of the bipolar responses to the first control response; and classify each of the bipolar responses for the plurality of candidate bipoles, wherein a given bipolar response for an associated candidate bipole of the plurality of bipoles is classified as normal if the given bipolar response is within the threshold range of the first control response and classified as abnormal if the given bipolar response is outside the threshold range of the first control response. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A non-transitory computer-readable medium storing a set of instructions which when implemented in a medical device cause the device to perform a method for discriminating between cathodal and anodal cardiac capture, the method comprising:
-
delivering a first pacing pulse using a first candidate cathode electrode positioned along a heart chamber and a universal anode; measuring a first control response to the first pacing pulse; delivering a plurality of second pacing pulses using a plurality of candidate bipoles comprising the first candidate cathode electrode paired one at a time with each of a plurality of anodes positioned along the heart chamber; measuring a bipolar response to the second pacing pulses for each of the plurality of candidate bipoles; establishing a threshold response and a threshold range; comparing the first control response to the threshold response; responsive to the first control response meeting the threshold response, classifying the first control response as normal and comparing each of the bipolar responses to the first control response; and classifying each of the bipolar responses for the plurality of candidate bipoles, wherein a given bipolar response for an associated candidate bipole of the plurality of bipoles is classified as normal if the given bipolar response is within the threshold range of the first control response and classified as abnormal if the bipolar response is outside the threshold range of the first control response.
-
Specification