Ablation catheters and systems including rotational monitoring means
First Claim
1. A method for monitoring the circumferential ablation history of a renal artery, the method comprising:
- ablating a first area on the renal artery using an ablation system comprising a catheter handle, an elongate catheter body, and an electrode;
rotating the catheter handle by a first predetermined rotational angle indicated by a means for monitoring an angular rotation of the catheter handle during an ablation procedure, said rotating the catheter handle comprising rotating the electrode by the first predetermined rotational angle;
recording the first predetermined rotational angle; and
ablating a second area on the renal artery using the ablation system.
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Accused Products
Abstract
The present disclosure provides an improved ablation catheter. In particular, the present disclosure provides an improved renal denervation ablation catheter and system including a catheter handle and a means for tracking, monitoring, and/or recording the circumferential angular history of the renal denervation ablation catheter handle. The renal denervation ablation catheters in accordance with the present disclosure are well-suited for use with a renal denervation ablation system that can record the circumferential angular history of the renal denervation catheter handle, and hence the circumferential angular ablation history of the catheter electrode within a vessel, and use this data in combination with other known information to estimate the percent circumferential denervation of the vessel.
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Citations
20 Claims
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1. A method for monitoring the circumferential ablation history of a renal artery, the method comprising:
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ablating a first area on the renal artery using an ablation system comprising a catheter handle, an elongate catheter body, and an electrode; rotating the catheter handle by a first predetermined rotational angle indicated by a means for monitoring an angular rotation of the catheter handle during an ablation procedure, said rotating the catheter handle comprising rotating the electrode by the first predetermined rotational angle; recording the first predetermined rotational angle; and ablating a second area on the renal artery using the ablation system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 20)
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8. An ablation catheter system comprising:
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a rotatable catheter handle comprising a means for monitoring a rotational angle of the catheter handle; an elongate catheter body; and an electrode configured to rotate with rotational movement of the rotatable catheter handle. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for estimating the circumferential percent renal denervation for a renal artery, the method comprising:
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initializing an ablation system including an ablation catheter comprising a catheter handle, an elongate catheter body, and an electrode; ablating a first area on the renal artery using the ablation system; rotating the catheter handle by a first predetermined rotational angle indicated by a means for monitoring an angular rotation of the catheter handle during an ablation procedure, wherein said rotating the catheter handle also rotates the electrode by the first predetermined rotational angle; recording the first predetermined rotational angle; ablating a second area on the renal artery using the ablation system; and using an average ablation spot size, a diameter of the artery, and circumferential angle for each ablation to estimate the circumferential percent renal denervation for the artery. - View Dependent Claims (18, 19)
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Specification