System and method for triggered pacing
First Claim
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1. A method for controlling automated delivery of therapeutic stimulation pulses by a medical device system including an intracardiac pacemaker implanted in a patient, the method comprising:
- acquiring by an implantable medical device sensing module a first cardiac signal using a first pair of electrodes selected from a plurality of available electrode pairs that are implanted outside the cardiovascular system, the plurality of available electrodes defining at least one sensing vector that is approximately parallel with a cranial-caudal axis of the patient;
generating a first electrocardiogram (ECG) signal from the received first cardiac signal;
identifying a P-wave from the ECG signal;
transmitting a wireless trigger signal from the implantable medical device to the intracardiac pacemaker in response to identifying the P-wave; and
delivering a pacing therapy by the pacemaker in response to the trigger signal.
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Abstract
A medical device system including an intracardiac pacemaker is configured to receive by an implantable medical device sensing module a first cardiac signal using a first pair of electrodes implanted outside the cardiovascular system and identify a P-wave from the first cardiac signal. The system transmits a wireless trigger signal to the intracardiac pacemaker in response to identifying the P-wave. The intracardiac pacemaker delivers a pacing therapy in response to the trigger signal.
147 Citations
21 Claims
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1. A method for controlling automated delivery of therapeutic stimulation pulses by a medical device system including an intracardiac pacemaker implanted in a patient, the method comprising:
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acquiring by an implantable medical device sensing module a first cardiac signal using a first pair of electrodes selected from a plurality of available electrode pairs that are implanted outside the cardiovascular system, the plurality of available electrodes defining at least one sensing vector that is approximately parallel with a cranial-caudal axis of the patient; generating a first electrocardiogram (ECG) signal from the received first cardiac signal; identifying a P-wave from the ECG signal; transmitting a wireless trigger signal from the implantable medical device to the intracardiac pacemaker in response to identifying the P-wave; and delivering a pacing therapy by the pacemaker in response to the trigger signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An implantable medical device system, comprising:
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a first device comprising a sensing module coupled to a plurality of electrodes implanted outside the cardiovascular system of a patient and configured to; receive by the sensing module a first cardiac signal using a first pair of electrodes of the plurality of electrodes, the plurality of electrodes defining at least a first sensing vector that is approximately parallel with a cranial-caudal axis of the patient; generate a first electrocardiogram (ECG) signal based on the first cardiac signal; identify a P-wave using the first ECG signal; a trigger signal emitting device controlled by the first device to emit a wireless trigger signal in response to the identified P-wave; and an intracardiac pacemaker configured to detect the wireless trigger signal and deliver a pacing therapy in response to the wireless trigger signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A non-transitory, computer-readable storage medium storing a set of instructions that cause an implantable medical device system including an intracardiac pacemaker to perform a method, the method comprising:
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acquiring by an implantable medical device sensing module a first cardiac signal using a first pair of electrodes of a plurality of available electrode pairs that are implanted outside the cardiovascular system, the first pair of electrodes defining a sensing vector that is approximately parallel to a cranial-caudal axis of the patient; generating a first electrocardiogram (ECG) signal based on the first cardiac signal; identifying a P-wave from the first ECG signal; transmitting a wireless trigger signal from an emitting device to the intracardiac pacemaker in response to identifying the P-wave; and delivering a pacing therapy by the pacemaker in response to the trigger signal.
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Specification