Method and apparatus for determining the coronary sinus vein branch accessed by a coronary sinus lead
First Claim
1. A system for determining the position of an electrode in a patient'"'"'s heart, the system comprising:
- an electrode; and
a processing device configured to receive a first cardiac electrical signal representative of a first electrical event of an intracardiac depolarization wavefront sensed by the electrode during a heartbeat of the heart and a second cardiac electrical signal representative of a second electrical event of the intracardiac depolarization wavefront sensed by the electrode during the heartbeat, and to calculate a position of the electrode in or near the heart based at least in part upon a time interval between first and second electrical events during the heartbeat.
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Abstract
Systems and methods for determining the coronary sinus vein branch location of a left ventricle electrode are disclosed. The systems and methods involve detecting the occurrence of electrical events within the patient'"'"'s heart including sensing one or more of the electrical events with the electrode and then analyzing the electrical events to determine the electrode'"'"'s position. The determination of electrode position may be used to automatically adjust operating parameters of a VRT device. Furthermore, the determination of electrode position may be made in real-time during installation of the electrode and a visual indication of the electrode position may be provided on a display screen.
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Citations
20 Claims
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1. A system for determining the position of an electrode in a patient'"'"'s heart, the system comprising:
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an electrode; and a processing device configured to receive a first cardiac electrical signal representative of a first electrical event of an intracardiac depolarization wavefront sensed by the electrode during a heartbeat of the heart and a second cardiac electrical signal representative of a second electrical event of the intracardiac depolarization wavefront sensed by the electrode during the heartbeat, and to calculate a position of the electrode in or near the heart based at least in part upon a time interval between first and second electrical events during the heartbeat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for use in determining the position of an electrode in a left ventricle area of a patient'"'"'s heart, the device comprising:
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a first input configured to receive a first cardiac electrical signal representative of a first electrical event of an intracardiac depolarizing wavefront within the heart sensed by the electrode during a heartbeat of the heart; a second input configured to receive a second cardiac electrical signal representative of a second electrical event of the intracardiac depolarization wavefront sensed by the electrode during the heartbeat; and a processor configured to receive the first cardiac electrical signal and the second cardiac electrical signal, and to calculate a position of the electrode based at least in part upon a time interval between first and second electrical events during at least one heart cycle. - View Dependent Claims (12, 13)
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14. A method for determining a position of an electrode located within a left ventricle area of a heart, the method comprising:
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detecting a first depolarization event within an intracardiac depolarization wavefront of the heart sensed by the electrode during a heartbeat of the heart; detecting a second depolarization event of the intracardiac depolarization wavefront sensed by the electrode during the heartbeat; measuring a first interval between the first depolarization event and the second depolarization event; and determining from at least the first interval whether the electrode has a lateral/posterior position or an anterior position within the left ventricle area. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification