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US 12,599,433 B2Granted
Apparatus and method for intra-cardiac mapping and ablation
AssigneeKardium Inc.
InventorsDaniel Gelbart, Samuel Victor Lichtenstein
Life of this patent
Estimating the term…
Abstract
An intra-cardiac mapping system is based on locating the ports through which blood flows in or out the heart chambers. For many procedures, such as ablation to cure atrial fibrillation, locating the pulmonary veins and the mitral valve accurately allows to perform a Maze procedure. The location of the ports and valves is based on using the convective cooling effect of the blood flow. The mapping can be performed by a catheter-deployed expandable net or a scanning catheter. The same net or catheter can also perform the ablation procedure.
Claims35
A medical system comprising:
- a catheter including a meshed structure, the meshed structure including a plurality of vertices, each vertex of at least a first vertex of the plurality of vertices being where four segments of the meshed structure are attached, the meshed structure comprising a proximal end and a distal end, the meshed structure configured to be delivered to a bodily organ with the distal end ahead of the proximal end, and the first vertex located on the meshed structure between the proximal end and the distal end of the meshed structure;
- and
- a control computer operatively coupled via a wire connection configuration to the meshed structure and configured, for at least the first vertex of the plurality of vertices, to cause delivery of tissue ablative energy to tissue at least proximate a first segment of the four segments of the meshed structure attached at the first vertex independently of causing delivery of tissue ablative energy to tissue at least proximate a second segment of the four segments of the meshed structure attached at the first vertex.
A medical system comprising:
- a catheter including a meshed structure including a plurality of vertices and a plurality of segments between the plurality of vertices;
- and
- a control computer operatively coupled via a wire connection configuration to the meshed structure and configured to independently control a first portion of the meshed structure to sense a tissue characteristic and to cause a second portion of the meshed structure to cause tissue ablation, the second portion of the meshed structure distinct from the first portion of the meshed structure, and the second portion and the first portion coupled to a same particular vertex of the plurality of vertices, a group of segments of the plurality of segments attached at the same vertex.
A medical system comprising:
- a catheter including a meshed structure;
- and
- a control computer operatively coupled to a plurality of control leads that are coupled to the meshed structure to cause tissue ablation or a sensing operation,
- wherein the meshed structure is configured to expand from a compressed configuration to an expanded configuration, the plurality of control leads hanging within the meshed structure at least in the expanded configuration, and each control lead of the plurality of control leads coupled to a different portion of the meshed structure than every other control lead of the plurality of control leads, and
- wherein the meshed structure comprises a plurality of segments and a plurality of vertices, each vertex of the plurality of vertices being where more than two segments of the plurality of segments are attached, and each control lead of at least some of the plurality of control leads is coupled to a location on the meshed structure between two vertices of the plurality of vertices.
2 more elements
A medical system comprising:
- a catheter including a meshed structure comprising a plurality of segments, the meshed structure including a plurality of vertices, each vertex of the plurality of vertices being where more than two segments of the plurality of segments are attached;
- and
- a control computer operatively coupled to a plurality of control leads that are coupled to the meshed structure among the vertices of the meshed structure to cause tissue ablation or a sensing operation, the control leads distinct from the plurality of segments.
A medical system comprising:
- a catheter including a meshed structure, the meshed structure including a plurality of vertices, the meshed structure comprising a proximal end and a distal end, the meshed structure configured to be delivered to a bodily organ with the distal end ahead of the proximal end, and a first vertex of the plurality of vertices located on the meshed structure between the proximal end and the distal end of the meshed structure, and a first segment of the meshed structure leading into the first vertex of the plurality of vertices stiffer than a second segment of the meshed structure leading into the first vertex of the plurality of vertices;
- and
- a control computer operatively coupled via a wire connection configuration to the meshed structure and configured to cause delivery of tissue ablative energy to tissue at least proximate at least a portion of the meshed structure.
Dependencies are inferred from the claim text.