High resolution cardiac mapping electrode array catheter
First Claim
Patent Images
1. A mapping device for analyzing body tissue, comprising:
- an elongate shaft having a proximal section and a distal section;
an electrode assembly having a first side surface and a second side surface coupled to the distal section of the elongate shaft, the electrode assembly having a collapsed configuration and an expanded configuration;
a plurality of inflatable pockets disposed on the second side surface, the plurality of inflatable pockets being separated by one or more seams that enable the electrode assembly to curve into a desired orientation;
a steering mechanism coupled to the distal section, the steering mechanism configured to steer the distal section; and
wherein the electrode assembly includes a plurality of splines including a central mid spline and a plurality of electrodes disposed on at least some of the plurality of splines, wherein the electrode assembly has a generally planar structure when expanded.
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Abstract
Devices, systems, and methods for performing a mapping procedure on body tissue are disclosed. An example mapping device for mapping a tissue surface includes an elongate shaft and an electrode assembly. The electrode assembly includes a plurality of splines and a plurality of electrodes disposed on at least some of the splines. The electrode assembly is capable of moving between a collapsed configuration and an expanded configuration. In the expanded configuration, the electrode assembly may have a generally planar structure.
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Citations
20 Claims
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1. A mapping device for analyzing body tissue, comprising:
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an elongate shaft having a proximal section and a distal section; an electrode assembly having a first side surface and a second side surface coupled to the distal section of the elongate shaft, the electrode assembly having a collapsed configuration and an expanded configuration; a plurality of inflatable pockets disposed on the second side surface, the plurality of inflatable pockets being separated by one or more seams that enable the electrode assembly to curve into a desired orientation; a steering mechanism coupled to the distal section, the steering mechanism configured to steer the distal section; and wherein the electrode assembly includes a plurality of splines including a central mid spline and a plurality of electrodes disposed on at least some of the plurality of splines, wherein the electrode assembly has a generally planar structure when expanded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mapping system for analyzing body tissue, comprising:
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an imaging and control system; a handle in electrical communication with the imaging and control system; an elongate shaft connected to the handle and extending distally therefrom, the elongate shaft having a proximal section and a distal section; and an electrode assembly having a first side surface and a second side surface coupled to the distal section of the elongate shaft, the electrode assembly capable of moving between a collapsed configuration and an expanded configuration, wherein the second side surface includes a plurality of inflatable pockets attached thereto, the plurality of pockets being separated by one or more seams that allow the plurality of inflatable pockets to curve into a desired orientation, the electrode assembly comprising; a central mid spline; a first spline having a proximal end secured to the central mid spline, a distal end secured to the central mid spline, and an intermediate region laterally spaced a distance from the central mid spline; and a second spline having a proximal end secured to the central mid spline, a distal end secured to the central mid spline, and an intermediate region laterally spaced a distance from the central mid spline; a first plurality of electrodes secured to the central mid spline; a second plurality of electrodes secured to the first spline; and a third plurality of electrodes secured to the second spline. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A mapping system for analyzing body tissue, comprising:
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an imaging and control system; a handle in electrical communication with the imaging and control system; an elongate shaft connected to the handle and extending distally therefrom, the elongate shaft having a proximal section and a distal section; and an electrode assembly having a first side surface and a second side surface coupled to the distal section of the elongate shaft, the electrode assembly comprising; an elastomeric polymeric backing on the second side surface comprising a plurality of inflatable pockets, wherein each pair of adjacent inflatable pockets, of the plurality of inflatable pockets, are separated by one or more seams that allow the plurality of inflatable pockets to curve into a desired orientation; a central mid spline including a telescoping region and having a length extending from a proximal end to a distal end of the electrode assembly; a first pair of splines each having a proximal end, a distal end, and an intermediate region laterally spaced a distance from the central mid spline, the proximal ends of the first pair of splines secured to the central mid spline at a first location along the length of the central mid spline and the distal ends of the first pair of splines secured to the central mid spline at a second location distal to the first location along the length of the central mid spline; a second pair of splines each having a proximal end, a distal end, and an intermediate region laterally spaced a distance from the central mid spline, the proximal ends of the second pair of splines secured to the central mid spline at a third location proximal to the first location along the length of the central mid spline and the distal ends of the second pair of splines secured to the central mid spline at the second location along the length of the central mid spline; a third pair of splines each having a proximal end, a distal end, and an intermediate region laterally spaced a distance from the central mid spline, the proximal ends of the third pair of splines secured to the central mid spline at a fourth location proximal to the third location along the length of the central mid spline and the distal ends of the third pair of splines secured to the central mid spline at a fifth location distal to the second location along the length of the central mid spline; a first plurality of electrodes secured to the central mid spline; a second plurality of electrodes secured to the first pair of splines; and a third plurality of electrodes secured to the second pair of splines; wherein the first, second, and third plurality of electrodes are disposed on the first side surface of the electrode assembly.
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Specification