Endocardial mapping system
First Claim
Patent Images
1. An endocardial mapping catheter assembly comprising:
- (a) a plurality of insulated wires braided throughout their length into an interlocking weave;
(b) a distal portion of the interlocking weave being expandable from a first generally cylindrical shape to a second expanded shape; and
(c) a plurality of electrodes on the distal portion of the insulated wires, each electrode in electrical communication with a single wire, and with each wire being in electrical communication with no more than a single electrode.
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Abstract
A system for mapping electrical activity of a patient'"'"'s heart includes a set of electrodes spaced from the heart wall and a set of electrodes in contact with the heart wall. Voltage measurements from the electrodes are used to generate three-dimensional and two-dimensional maps of the electrical activity of the heart.
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Citations
19 Claims
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1. An endocardial mapping catheter assembly comprising:
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(a) a plurality of insulated wires braided throughout their length into an interlocking weave;
(b) a distal portion of the interlocking weave being expandable from a first generally cylindrical shape to a second expanded shape; and
(c) a plurality of electrodes on the distal portion of the insulated wires, each electrode in electrical communication with a single wire, and with each wire being in electrical communication with no more than a single electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An endocardial mapping catheter assembly comprising
(a) an elongated flexible lead body having an interior lumen and proximal and distal ends; -
(b) at least twenty-four insulated wires in the lumen extending from the proximal to the distal end of the lead body, the wires collectively being braided together to form a wire assembly;
(c) an expandable portion of the wire assembly near the distal end of the flexible lead body, the expandable portion being expandable from a first generally cylindrical shape to a second expanded shape;
(d) the majority of wires in the wire assembly each having a single electrode in the expandable portion of the wire assembly;
(e) an electrical plug on the proximal end of the flexible lead body, the electrical plug having a plurality of connections, each connection being in electrical communication with one of the wires.
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11. An endocardial mapping catheter assembly comprising:
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(a) a plurality of insulated wires surrounded by an insulating material, (b) a braid comprised of a combination of the insulated wires in an interlocking weave, (c) a flexible material surrounding a first portion of the braid, forming a flexible lead body, the flexible material not surrounding a second portion of the braid, the second portion of the braid forming an array, the array being deformable into a predictable geometric shape, (d) at least twenty-four electrodes on the braided wire array, each electrode in electronic communication with a single wire in the array. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification