Catheter with multiple electrode assemblies for use at or near tubular regions of the heart
First Claim
1. A catheter comprising:
- an elongated catheter body generally defining a catheter axis;
a distal electrode assembly mounted on a distal end of the catheter body, the distal electrode assembly having a first elongated member defining a longitudinal axis and a plurality of spines surrounding the first elongated member and converging at their proximal and distal ends, each spine comprising at least one electrode and having a curvature so that the spine bows radially outwardly from the first elongated member;
a proximal electrode assembly mounted on the distal end of the catheter body proximal of the distal electrode assembly and having a second elongated member configured with a generally radial portion and a generally circular portion generally transverse to the catheter axis, the generally circular portion comprising a plurality of electrodes;
an intermediate section between the catheter body and the proximal electrode assembly, the plurality of spines of the distal electrode assembly being fixedly mounted at their proximal ends to the intermediate section;
a control handle at a proximal end of the catheter body;
a first tensile member extending between the control handle and the distal electrode assembly; and
a second tensile member extending through the catheter body and into the intermediate section,wherein the control handle is configured for user manipulation of the first tensile member to change the curvature of the spines and for user manipulation of the second tensile member to deflect the intermediate section.
1 Assignment
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Accused Products
Abstract
A catheter with ablation and potential sensing capabilities is adapted for outer circumferential contact with an opening of a tubular region and inner circumferential contact within the tubular region. The catheter has a proximal electrode assembly and a distal electrode assembly for ablation of an ostium and potential sensing inside the pulmonary vein so that it is possible to obtain ECG signals inside a pulmonary vein when ablating around the ostium. The distal electrode assembly has an elongated member defining a longitudinal axis and a plurality of spines surrounding the member and converging at their proximal and distal ends, where each spine has at least one electrode and a curvature so that the spine bows radially outwardly from the member. The proximal electrode assembly has a proximal electrode assembly has an elongated member configured with a generally radial portion and a generally circular portion generally transverse to the catheter axis, where the generally circular portion comprising a plurality of electrodes. The control handle advantageously allows a user to manipulate a tensile member for changing the curvature of the spine.
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Citations
17 Claims
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1. A catheter comprising:
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an elongated catheter body generally defining a catheter axis; a distal electrode assembly mounted on a distal end of the catheter body, the distal electrode assembly having a first elongated member defining a longitudinal axis and a plurality of spines surrounding the first elongated member and converging at their proximal and distal ends, each spine comprising at least one electrode and having a curvature so that the spine bows radially outwardly from the first elongated member; a proximal electrode assembly mounted on the distal end of the catheter body proximal of the distal electrode assembly and having a second elongated member configured with a generally radial portion and a generally circular portion generally transverse to the catheter axis, the generally circular portion comprising a plurality of electrodes; an intermediate section between the catheter body and the proximal electrode assembly, the plurality of spines of the distal electrode assembly being fixedly mounted at their proximal ends to the intermediate section; a control handle at a proximal end of the catheter body; a first tensile member extending between the control handle and the distal electrode assembly; and a second tensile member extending through the catheter body and into the intermediate section, wherein the control handle is configured for user manipulation of the first tensile member to change the curvature of the spines and for user manipulation of the second tensile member to deflect the intermediate section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification