Surgical method and apparatus for treating atrial fibrillation
US7740627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2006 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Aug 21, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0262
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention advantageously provides a method and system for cryogenically ablating large areas of tissue within the left atrium. In an exemplary embodiment a cryotherapy device includes a catheter body, a proximal end and a distal end; a first lumen; a second lumen; and an ablation element expandable from a first diameter to a second diameter, the ablation element having a surface portion that conforms to the uneven surface topography of the cardiac tissue. The ablation element can include one or more deformable balloon and/or flexible elements. The surface of the balloon can further be shaped by regulation of pressure within the one or more balloons. In an exemplary method, a tissue ablation device is provided and tissue in the left atrium is ablated with the device, whereby the ablation is created by freezing tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.