Mapping and ablation applicators
Inventors
Turovskiy, Roman • KIRKLAND, David R. • Danitz, David J. • MOOSAVI, David • QUINTOS, Rodel • Bradway, Ryan C. • Denison, Andy E. • Montgomery, Dylan R • D'Aquanni, Peter J.
Assignees
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Publication Number
US-12446944-B2
Publication Date
2025-10-21
Expiration Date
Abstract
Devices and methods for mapping tissue, such as cardiac tissue, and applying electrical energy to ablate the tissue may include an applicator region comprising two or more wire electrodes that extend between the arms of the device as well as a plurality of mapping and/or sensing electrodes (e.g., ring electrodes) on the arms and/or the elongate body. These devices may sense electrical activity using the mapping electrodes and may deliver energy between the first wire electrode and the second wire electrode to ablate, for example, cardiac tissue.
Core Innovation
The invention relates to an ablation and mapping device for applying electrical energy. The device includes an elongate body and an applicator region extending from a distal end region, with a first wire electrode and a second wire electrode extending between a first arm and a second arm and arranged substantially parallel to one another. The applicator region is configured to deliver energy between the first wire electrode and the second wire electrode.
The device further includes a plurality of mapping electrodes on the first and second arms and on the elongate body. In representative embodiments, the wire electrodes are maintained in relation to one another during application against target tissue, and the first wire electrode remains substantially parallel to the second wire electrode as the applicator region is applied against a target tissue.
Additional aspects include an insulating cover or coating extending along one non-tissue contacting side of a length of the first and second wire electrodes, and a minimum inter-wire spacing d as the applicator region is applied against a target tissue. Mapping implementations include mapping ring electrodes, including mapping ring electrodes radially outward from the first and second wire electrodes and/or on an outer support extending radially outward from a circumference of the first and second wire electrodes.
Claims Coverage
The document includes three independent claims directed to an ablation and mapping device with an elongate body and a distal applicator region delivering energy between two substantially parallel wire electrodes. Across the independent claims, the inventive features include paired wire electrodes arranged between first and second arms, maintaining parallelism or a minimum separation distance during application, and integrating mapping electrodes and mapping ring electrodes with an insulating cover or coating on a non-tissue-contacting side.
Paired substantially parallel wire electrodes delivering energy
An elongate body with an applicator region extending from a distal end region, the applicator region including a first wire electrode extending between a first arm and a second arm, and a second wire electrode extending between the first arm and the second arm, wherein the second wire electrode is substantially parallel to the first wire electrode, and wherein the applicator region is configured to deliver energy between the first wire electrode and the second wire electrode.
Insulating cover or coating on a non-tissue contacting side
An elongate body with an applicator region extending from a distal end region, the applicator region including first and second wire electrodes attached to first and second arms and/or the distal end region so the first wire electrode remains substantially parallel to the second wire electrode as the applicator region is applied against a target tissue, and an insulating cover or a coating extending along one non-tissue contacting side of a length of the first and second wire electrodes between the first arm to the second arm, wherein the applicator region is configured to deliver energy between the first wire electrode and the second wire electrode.
Mapping ring electrodes radially outward with minimum separation d
An elongate body with an applicator region extending from a distal end region, the applicator region including a first wire electrode and a second wire electrode attached to first and second arms and/or the distal end region so the first wire electrode is separated from the second wire electrode by a minimum distance, d, as the applicator region is applied against a target tissue, and a plurality of mapping ring electrodes on the first and second arms and on the elongate body including mapping ring electrodes radially outward from the first and second wire electrodes and/or on an outer support extending radially outward from a circumference of the first and second wire electrodes, wherein the applicator region is configured to deliver energy between the first wire electrode and the second wire electrode.
Overall claim coverage centers on ablation and mapping devices that apply electrical energy using a paired wire-electrode applicator region with substantially parallel wire electrodes maintained during application, optionally with an insulating cover or coating on a non-tissue contacting side, and optionally with a minimum inter-electrode separation distance d. Mapping is achieved via provided mapping electrodes on arms and body and via mapping ring electrodes arranged on and radially outward from the arms and/or an outer support in relation to the wire electrodes.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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