System and method for ultrasound ablation of tissue while compensating for collateral tissue
US9907983B2 · kind B2 · utility
15Cited by
136References
33Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 28, 2012 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | May 4, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2007/0078
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tissue ablation method for treating atrial fibrillation in a patient comprises locating an ostium of a pulmonary vein and positioning an interventional catheter adjacent the ostium. The interventional catheter has an energy source. Collateral tissue adjacent the ostium is located and tissue around the ostium is ablated with energy from the energy source so as to form a contiguous lesion circumscribing the ostium. The lesion blocks aberrant electrical pathways in the tissue so as to reduce or eliminate the atrial fibrillation. The ablating is modified so as to avoid ablating or otherwise damaging the collateral tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.