Method and apparatus for determing 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 sensed by the electrode over a time window spanning a plurality of heartbeats and a second cardiac electrical signal representative of a second electrical event sensed by the electrode over the time window, and to calculate a position of the electrode in or near the heart based at least in part upon an average time interval between the first and second electrical events occurring during each heartbeat within the time window.
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Accused Products
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.
67 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 sensed by the electrode over a time window spanning a plurality of heartbeats and a second cardiac electrical signal representative of a second electrical event sensed by the electrode over the time window, and to calculate a position of the electrode in or near the heart based at least in part upon an average time interval between the first and second electrical events occurring during each heartbeat within the time window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. 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 sensed repeatedly by the electrode over a time window spanning a plurality of heartbeats and a second cardiac electrical signal representative of a second electrical event repeatedly sensed by the electrode over the time window, and to calculate a position of the electrode in or near the heart based at least in part upon a comparison of an average time interval between the first and second electrical events during each heartbeat within the time window to a threshold value; and wherein the processing device is configured to determine, based on the average time interval, whether the electrode has a lateral/posterior position or an anterior position. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method for determining a position of an electrode located in a ventricle area of a patient'"'"'s heart, the method comprising:
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detecting a first depolarization for each of a plurality of intracardiac depolarization wavefronts sensed by the electrode over a time window spanning a plurality of heartbeats; detecting a second depolarization event for each of the plurality of intracardiac depolarization wavefronts sensed by the electrode over the time window; measuring a plurality of first time intervals between the first depolarization event and the second depolarization event occurring during each heartbeat within the time window; computing an average time interval based on the first time intervals measured over the time window; and determining from the average time interval whether the electrode has a lateral/posterior position or an anterior position within the ventricle area. - View Dependent Claims (18, 19, 20)
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Specification