Selectable eccentric remodeling and/or ablation
AssigneeVessix Vascular, Inc.
InventorsTHOMAS A. STEINKE, CORBETT W. STONE, STEPHEN O. ROSS, BRIAN S. KELLEHER, RAPHAEL M. MICHEL, DONALD H. KOENIG
Life of this patent
Estimating the term…
Abstract
A catheter and catheter system for treatment of a blood vessel of a patient include an elongate flexible catheter body with a radially expandable structure. A plurality of electrodes or other electrosurgical energy delivery surfaces can radially engage material to be treated when the structure expands. A material detector near the distal end of the catheter body may measure circumferential material distribution, and a power source selectively energizes the electrodes to eccentrically treat of a body lumen.
Claims32
An apparatus for renal neuromodulation, the apparatus comprising:
- a catheter configured for intravascular placement within a renal blood vessel of a human patient;
- an expandable balloon at a distal portion of the catheter, wherein the expandable balloon is configured to vary between a delivery configuration and a deployed configuration sized to fit within the renal blood vessel;
- a first electrode having a first pair of bipolar contacts attached to the expandable balloon;
- and
- a second electrode having a second pair of bipolar contacts attached to the expandable balloon,
- wherein the first electrode and the second electrode are spaced apart lengthwise and angularly offset from one another when the expandable balloon is in the deployed configuration,
- wherein each of the first electrode and the second electrode is configured to deliver thermal energy to less than a full circumference of the renal blood vessel of the patient.
An apparatus for treating a patient, the apparatus comprising:
- a catheter configured for intravascular placement within a blood vessel of a human patient;
- an expandable balloon at a distal portion of the catheter, wherein the expandable balloon is configured to vary between a delivery configuration and a deployed configuration sized to fit within the blood vessel;
- a first electrode having a first pair of bipolar contacts attached to the expandable balloon;
- and
- a second electrode having a second pair of bipolar contacts attached to the expandable balloon,
- wherein the first electrode and the second electrode are spaced apart lengthwise and angularly offset from one another when the expandable balloon is in the deployed configuration,
- wherein each of the first electrode and the second electrode is configured to deliver thermal energy to less than a full circumference of the blood vessel of the patient.
Dependencies are inferred from the claim text.