MULTI-DIRECTIONAL DEFLECTABLE CATHETER APPARATUSES, SYSTEMS, AND METHODS FOR RENAL NEUROMODULATION
First Claim
1. A multi-directional deflectable catheter apparatus for thermally modulating renal nerves from within a renal artery of a patient, the catheter apparatus comprising:
- an elongated tubular shaft extending along an axis, the elongated tubular shaft having a proximal end and a distal end;
a handle proximal to the proximal end of the elongated tubular shaft;
a flexible tubular structure distal from the distal end of the elongated tubular shaft, the flexible tubular structure adapted to make a transitional bend from the aorta of the patient to the renal artery;
a multi-directional deflectable assembly distal from the flexible tubular structure;
a flexure control element coupled to the multi-directional deflectable assembly;
a flexure controller carried by the handle and coupled to the flexure control element, the flexure controller adapted to apply a force via the flexure control element to the multi-directional deflectable assembly; and
a thermal element carried by or distal from the multi-directional deflectable assembly;
wherein the multi-directional deflectable assembly is adapted for flexure in at least two radial directions in a common plane through the axis of the elongated tubular shaft upon application of force via the flexure control element;
wherein the multi-directional deflectable assembly is adapted upon flexure to position the thermal element in contact with an inner wall of the renal artery.
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Accused Products
Abstract
Multi-directional deflectable catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a catheter treatment device comprising an elongated shaft. The elongated shaft is sized and configured to deliver a thermal element to a renal artery via an intravascular path. Thermally or electrical renal neuromodulation may be achieved via direct and/or via indirect application of thermal and/or electrical energy to heat or cool, or otherwise electrically modulate, neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers.
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Citations
47 Claims
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1. A multi-directional deflectable catheter apparatus for thermally modulating renal nerves from within a renal artery of a patient, the catheter apparatus comprising:
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an elongated tubular shaft extending along an axis, the elongated tubular shaft having a proximal end and a distal end; a handle proximal to the proximal end of the elongated tubular shaft; a flexible tubular structure distal from the distal end of the elongated tubular shaft, the flexible tubular structure adapted to make a transitional bend from the aorta of the patient to the renal artery; a multi-directional deflectable assembly distal from the flexible tubular structure; a flexure control element coupled to the multi-directional deflectable assembly; a flexure controller carried by the handle and coupled to the flexure control element, the flexure controller adapted to apply a force via the flexure control element to the multi-directional deflectable assembly; and a thermal element carried by or distal from the multi-directional deflectable assembly; wherein the multi-directional deflectable assembly is adapted for flexure in at least two radial directions in a common plane through the axis of the elongated tubular shaft upon application of force via the flexure control element; wherein the multi-directional deflectable assembly is adapted upon flexure to position the thermal element in contact with an inner wall of the renal artery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A multi-directional deflectable catheter apparatus for thermally modulating renal nerves from within a renal artery of a patient, the catheter apparatus comprising:
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an elongated tubular shaft extending along an axis, the elongated tubular shaft having a proximal end and a distal end; a handle proximal to the proximal end of the elongated tubular shaft; a flexible tubular structure distal from the distal end of the elongated tubular shaft, the flexible tubular structure adapted to make a transitional bend from the aorta of the patient to the renal artery; a multi-directional deflectable assembly distal from the flexible tubular structure, the multi-directional deflectable assembly having a circumferentially-positioned spine; a flexure control element coupled to the multi-directional deflectable assembly; a flexure controller carried by the handle and coupled to the flexure control element, the flexure controller adapted to apply a force via the flexure control element to the multi-directional deflectable assembly; and a thermal element carried by or distal from the multi-directional deflectable assembly; wherein the multi-directional deflectable assembly is adapted for flexure in at least two radial directions in a plane through the axis of the elongated tubular shaft upon application of force via the flexure control element; wherein the multi-directional deflectable assembly is adapted upon flexure to position the thermal element in contact with an inner wall of the renal artery. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification