Body-surface mapping system
AssigneeSt. Jude Medical, Atrial Fibrillation Division, Inc.
InventorsEric J. VOTH, Don C. Deno
Life of this patent
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Abstract
A body-surface mapping system is disclosed that uses a plurality of electrodes to map at least a portion of a human torso without having to adjust the positions of the electrodes. The body-surface mapping system energizes groupings or regions of electrodes, then compares and adjusts the current driven through each grouping or region of electrodes to produce near-uniform fields. The electrodes of the body-surface mapping system may be interconnected by wires capable of sensing interelectrode distances, such that the system can reconstruct a detailed model of a patient's torso surface. The body-surface mapping system may also use a catheter in addition to the body surface electrodes to compute both endocardial and epicardial voltage distributions.
Claims21
A cardiac electrical activity mapping system comprising:
- a garment adapted to fit a portion of a surface of a patient's body and including a plurality of electrodes operable to sense cardiac electrical activity from the surface of the patient's body;
- and
- a computer system comprising:
- a memory that stores the cardiac electrical activity sensed by the plurality of electrodes;
- and
- a software program that reconstructs a map of cardiac electrical activity from the cardiac electrical activity sensed by the plurality of electrodes.
A method for measuring cardiac electrical activity comprising:
- applying a garment including a plurality of electrodes operable to sense cardiac electrical activity to a surface of a patient's body;
- coupling the plurality of electrodes to a computer system;
- measuring cardiac electrical activity using the plurality of electrodes;
- and
- using the computer system to construct a map of the cardiac electrical activity measured using the plurality of electrodes.
A method of mapping cardiac electrical activity comprising:
- applying a garment including a plurality of sensors operable to sense cardiac electrical activity to a surface of a patient's body;
- sensing cardiac electrical activity using the plurality of sensors;
- and
- mapping the sensed cardiac electrical activity.
Dependencies are inferred from the claim text.