Apparatus and method of assessing transvascular denervation
First Claim
1. A catheter apparatus for assessing denervation comprising:
- an elongated catheter body having a proximal end and a distal end and a longitudinal axis extending in a longitudinal direction between the distal end and the proximal end;
a deployable structure coupled to the catheter body, the deployable structure being deployable outwardly from the longitudinal axis and contractible inwardly toward the longitudinal axis of the catheter body, the deployable structure comprising a deployable sleeve having a semi-compliant outer shell and a non-compliant inner shell, wherein the semi-compliant outer shell is configured to stretch outwardly from the longitudinal axis away from the non-compliant inner shell in a deployed arrangement of the deployable structure, wherein at least a portion of the catheter body is disposed inside the deployable sleeve;
one or more ablation elements disposed on the deployable sleeve to move outwardly and inwardly with the deployable sleeve, the one or more ablation elements being powered to apply ablation energy to a vessel of a patient;
one or more stimulation elements disposed on the deployable sleeve to move outwardly and inwardly with the deployable sleeve, the one or more stimulation elements being powered to supply nerve stimulating signals to the vessel; and
one or more recording elements spaced from the one or more stimulation elements, the one or more recording elements being disposed on the deployable sleeve to move outwardly and inwardly with the deployable sleeve and being configured to record evoked electrical responses of the vessel in response to the nerve stimulating signals.
1 Assignment
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Accused Products
Abstract
A catheter apparatus for assessing denervation comprises: an elongated catheter body; a deployable structure coupled to the catheter body, the deployable structure being deployable outwardly from and contractible inwardly toward the longitudinal axis of the catheter body; one or more ablation elements disposed on the deployable structure to move outwardly and inwardly with the deployable structure; one or more stimulation elements spaced from each other and disposed on the deployable structure to move with the deployable structure, the stimulation elements being powered to supply nerve stimulating signals to the vessel; and one or more recording elements spaced from each other and from the stimulation elements, the recording elements being disposed on the deployable structure to move with the deployable structure, the recording elements configured to record response of the vessel to the nerve stimulating signals.
144 Citations
18 Claims
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1. A catheter apparatus for assessing denervation comprising:
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an elongated catheter body having a proximal end and a distal end and a longitudinal axis extending in a longitudinal direction between the distal end and the proximal end; a deployable structure coupled to the catheter body, the deployable structure being deployable outwardly from the longitudinal axis and contractible inwardly toward the longitudinal axis of the catheter body, the deployable structure comprising a deployable sleeve having a semi-compliant outer shell and a non-compliant inner shell, wherein the semi-compliant outer shell is configured to stretch outwardly from the longitudinal axis away from the non-compliant inner shell in a deployed arrangement of the deployable structure, wherein at least a portion of the catheter body is disposed inside the deployable sleeve; one or more ablation elements disposed on the deployable sleeve to move outwardly and inwardly with the deployable sleeve, the one or more ablation elements being powered to apply ablation energy to a vessel of a patient; one or more stimulation elements disposed on the deployable sleeve to move outwardly and inwardly with the deployable sleeve, the one or more stimulation elements being powered to supply nerve stimulating signals to the vessel; and one or more recording elements spaced from the one or more stimulation elements, the one or more recording elements being disposed on the deployable sleeve to move outwardly and inwardly with the deployable sleeve and being configured to record evoked electrical responses of the vessel in response to the nerve stimulating signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A catheter apparatus for assessing denervation comprising:
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an elongated catheter body having a proximal end and a distal end and a longitudinal axis extending in a longitudinal direction between the distal end and the proximal end, a portion of the catheter body including a plurality of holes; a structure coupled to the catheter body, the structure comprising a deployable sleeve, wherein at least a portion of the catheter body is disposed inside the deployable sleeve; one or more ablation elements disposed on the deployable sleeve and being powered to apply ablation energy to a vessel; one or more stimulation elements disposed on the deployable sleeve, the one or more stimulation elements being powered to supply nerve stimulating signals to the vessel; one or more recording elements spaced from each other and from the one or more stimulation elements, the one or more recording elements being disposed on the deployable sleeve and being configured to record evoked electrical responses of the vessel in response to the nerve stimulating signals; and wherein the portion of the catheter body disposed inside the deployable sleeve is configured to facilitate deployment of the deployable sleeve outwardly from the longitudinal axis of the catheter body to move the one or more ablation elements, the one or more stimulation elements, and the one or more recording elements outwardly to a deployed arrangement, and wherein the structure comprises a plurality of draw strings extending from inside the portion of the catheter body disposed inside the deployable sleeve through the plurality of holes to the deployable sleeve to draw the deployable sleeve radially inwardly relative to the catheter body in an undeployed arrangement. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification