Catheter assemblies comprising a direct heating element for renal neuromodulation and associated systems and methods
First Claim
1. A catheter apparatus, comprising:
- an elongated tubular shaft having a proximal portion and a distal portion;
a therapeutic assembly at the distal portion of the elongated tubular shaft and configured to be located at a target location within a renal artery of a patient, the therapeutic assembly comprising;
a control member having a tubular structure and a lumen therethrough and having a pre-formed helical shape;
a direct heating element having one or more heating wires carried by and wrapped around the control member;
a flexible tube having a lumen disposed between the control member and the direct heating element; and
an occlusion element at the distal portion of the elongated tubular shaft in which the control member and the direct heating element are positioned.
1 Assignment
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Accused Products
Abstract
Catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present technology, for example, is directed to a treatment device having a direct heating element configured to be delivered to a renal blood vessel. The treatment device is selectively transformable between a delivery or low-profile state and a deployed state. The direct heating element is housed within an occlusion element which is sized and shaped so that the direct heating element contacts an interior wall of the occlusion element, an outer wall of which is simultaneously in contact with the inner wall of a renal blood vessel when the treatment assembly is in the deployed state. The direct heating element is configured to apply thermal energy to heat neural fibers that contribute to renal function.
921 Citations
16 Claims
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1. A catheter apparatus, comprising:
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an elongated tubular shaft having a proximal portion and a distal portion; a therapeutic assembly at the distal portion of the elongated tubular shaft and configured to be located at a target location within a renal artery of a patient, the therapeutic assembly comprising; a control member having a tubular structure and a lumen therethrough and having a pre-formed helical shape; a direct heating element having one or more heating wires carried by and wrapped around the control member; a flexible tube having a lumen disposed between the control member and the direct heating element; and an occlusion element at the distal portion of the elongated tubular shaft in which the control member and the direct heating element are positioned. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A catheter apparatus, comprising:
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an elongated tubular shaft having a proximal portion and a distal portion; and a therapeutic assembly disposed at the distal portion of the elongated shaft and adapted to be located at a target location within a renal artery of a human patient, the therapeutic assembly comprising; an occlusion element; a control member comprising a pre-formed helical shape, wherein the control member is a tubular structure having a lumen therethrough; and a direct heating element that includes a first insulation layer that is in direct contact with the control member, a second insulation layer and a heating wire that is in between the first insulation layer and the second insulation layer, the heating wire being wrapped around the control member, wherein the control member and the direct heating element are within the occlusion element.
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Specification