Catheter having closed electrode assembly with spines of uniform length

Patent metadata

Field	Value
Publication number	US-10602948-B2
Application number	US-201916278082-A
Country	US
Kind code	B2
Filing date	Feb 16, 2019
Priority date	Jun 30, 2015
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A catheter comprising an elongated catheter body, and an electrode assembly distal of the catheter body, the assembly comprising a plurality of spines, wherein each spine has a distal end that is connected to the distal end of at least one other spine, wherein each spine has an electrode-carrying portion, the electrode-carrying portions of all spines of the assembly being in a single common plane, and wherein all spines of the assembly have a uniform exposed total length.

First claim

What is claimed is:

1. A catheter comprising:
an elongated catheter body having a longitudinal axis and defining a first plane containing the longitudinal axis and a second plane containing the longitudinal axis that is perpendicular to the first plane;
a first spine disposed distal to the catheter body and to a first side of the second plane, the first spine comprising:
at least two first linear portions extending along a path intersecting the second plane;
a first electrode-carrying portion disposed in the first plane;
a first distal end; and
a first exposed total length; and

a second spine disposed distal to the catheter body and to the first side of the second plane, the second spine comprising:
at least two second linear portions extending along a path intersecting the longitudinal axis;
a second electrode-carrying portion disposed in the first plane;
a second distal end connected to the first distal end; and
a second exposed total length equal to the first exposed total length.

2. The catheter of claim 1 , wherein each of the first electrode-carrying portion and second electrode-carrying portion comprises a linear portion.

3. The catheter of claim 2 , wherein the first electrode-carrying portion extends parallel to the second electrode-carrying portion.

4. The catheter of claim 2 , wherein the first electrode-carrying portion and second electrode-carrying portion extend parallel to the longitudinal axis.

5. The catheter of 1 , wherein the first spine and second spine comprise longitudinal symmetry with respect to the longitudinal axis.

6. The catheter of claim 1 , further comprising a first mirror counterpart of the first spine and a second mirror counterpart of the second spine, the first mirror counterpart and the second mirror counterpart being disposed on a second side of the second plane.

7. The catheter of claim 1 , wherein the first spine and second spine each include at least a divergent proximal portion.

8. The catheter of claim 1 , wherein the first spine and second spine each include at least a convergent distal portion.

9. The catheter of claim 1 , wherein at least the first spine or the second spine includes a divergent proximal portion and a convergent proximal portion that is distal of the divergent proximal portion.

10. The catheter of claim 1 , wherein at least the first spine or the second spine includes a convergent distal portion and a divergent distal portion that is proximal of the convergent distal portion.

11. The catheter of claim 1 , wherein the first spine and the second spine include a nonconductive covering.

12. The catheter of claim 1 , wherein the first spine and the second spine each include at least one ring electrode.

13. The catheter of claim 1 , wherein the first spine and the second spine each include at least one irrigated ring electrode.

14. The catheter of claim 1 , further comprising:
a third spine disposed distal to the catheter body and to a second side of the second plane, the third spine comprising:
at least two third linear portions extending along a path intersecting the second plane;
a third electrode-carrying portion disposed in the first plane;
a third distal end; and
a third exposed total length; and

a fourth spine disposed distal to the catheter body and to the second side of the second plane, the fourth spine comprising:
at least two fourth linear portions extending along a path intersecting the longitudinal axis;
a fourth electrode-carrying portion disposed in the first plane;
a fourth distal end connected to the third distal end; and
a fourth exposed total length equal to the third exposed total length.

15. The catheter of claim 14 , wherein the first and second spines are joined to define a closed configuration and the third and fourth spines are joined to define a closed configuration.

16. The catheter of claim 14 , wherein the first, second, third and fourth spines define a closed configuration array in which the array is without any spine whose distal end is free and unconnected to another spine.

17. The catheter of claim 14 , wherein the first exposed total length equals the third exposed total length.

Assignees

• Biosense Webster Israel Ltd

Inventors

• Wu Steven
• Min Sungwoo

Classifications

• A61B2018/00839

  Bioelectrical parameters, e.g. ECG, EEG · CPC title

• A61B2018/00351

  Heart · CPC title

• A61N1/0476

  Array electrodes (including any electrode arrangement with more than one electrode for at least one of the polarities) · CPC title

• A61B2018/00267

  having a basket shaped structure · CPC title

• A61B2018/1467

  using more than two electrodes on a single probe · CPC title