US 9,687,166 B2 · High resolution cardiac mapping electrode array catheter

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.

Drawings

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Drawings

Claims20

Dependent claims

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.

3 more elements

A mapping system for analyzing body tissue, comprising:

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.

10 more elements

A mapping system for analyzing body tissue, comprising:

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.

12 more elements

Dependencies are inferred from the claim text.

Description4,954 words

Summary973 words

#The present disclosure relates generally to a medical device for creating anatomical and electrical maps of the heart. More specifically, the present disclosure pertains to a steerable catheter with a conformal planar electrode array for creating high resolution anatomical and electrical maps of the heart.

#Cardiac mapping has become a standard practice in the cardiac electrophysiology practice. An anatomical map created by a catheter and mapping system provides a means of navigating the intercardiac space with minimal use of fluoroscopy. More importantly the voltage and activation maps generated using these system provide crucial information to diagnose and treat various arrhythmias. However, it may be desirable to provide a device for high resolution mapping of the epicardial surface.

#The disclosure relates generally to a mapping device including a generally planar electrode assembly for mapping body tissue. Accordingly, one illustrative embodiment is a mapping device for analyzing body tissue including an elongate shaft having a proximal section and a distal section. An electrode assembly having a first side surface and a second side surface may be coupled to the distal section of the elongate shaft. The electrode assembly may be capable of moving between a collapsed configuration and an expanded configuration. The electrode assembly may further include a plurality of splines including a central mid spline and a plurality of electrodes disposed on at least some of the plurality of splines.

Brief description of the drawings4 figures

#The invention may be more completely understood in consideration of the following detailed description of various embodiments in connection with the accompanying drawings, in which:

#FIG. 1 is a schematic view of a mapping device in accordance with an illustrative embodiment;

#FIG. 2 illustrates a distal end region of an illustrative mapping device in a first configuration;

Detailed description3,893 words

#While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit aspects of the invention to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

#For the following defined terms, these definitions shall be applied, unless a different definition is given in the claims or elsewhere in this specification.

#All numeric values are herein assumed to be modified by the term “about”, whether or not explicitly indicated. The term “about” generally refers to a range of numbers that one of skill in the art would consider equivalent to the recited value (i.e., having the same function or result). In many instances, the term “about” may be indicative as including numbers that are rounded to the nearest significant figure.

Facts

Application

14/512,065Filed 10 Oct 2014 · us provisional application

Priority

14 Oct 2013

Published

US 2015/0105645 A116 Apr 2015

Granted

27 Jun 2017

Term ends

2 Jun 2035

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 235 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification8 codes

A61B 5/287
Invasive: holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
A61B 5/341
Displays specially adapted therefor: vectorcardiography [VCG]
A61B 5/361
Detecting specific parameters of the electrocardiograph cycle: detecting fibrillation
A61B 5/363
Detecting specific parameters of the electrocardiograph cycle: detecting tachycardia or bradycardia

Timeline

14 Oct 2013Priority claimedParent application 61/890,733
10 Oct 2014Application filedUS 14/512,065
9 Apr 2015Assigned to Boston Scientific Scimed, Inc.assignment of assignor's interest
16 Apr 2015PublishedUS 2015/0105645 A1
27 Jun 2017GrantedUS 9,687,166 B2
12 Oct 2026TodayWithin its term
2 Jun 2035Term endsEstimated, includes 235 days of adjustment

High resolution cardiac mapping electrode array catheter

Life of this patent

High resolution cardiac mapping electrode array catheter

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims20

Description4,954 words

Drawings

Classification8 codes

Life of this patent

Description4,954 words