Method and apparatus for epicardial left atrial appendage isolation in patients with atrial fibrillation
US7344543B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2004 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Nov 14, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/376
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter apparatus is provided for isolation of the left atrial appendage (LAA) having a catheter shaft, a probe disposed within the catheter shaft, and a control mechanism coupled to both the catheter shaft and the probe. The catheter shaft includes a main body with a distal tip section. The tip section can be deflected from the shaft's central axis in a controlled manner. The probe can be extended outward from the catheter shaft and has a distal end that is brought into contact with the LAA. The control mechanism controls the catheter shaft's rotational and longitudinal movement, the tip section's degree of deflection, and the probe's axial movement with respect to the catheter shaft. Preferably, the distal end is able to form a pre-stressed loop selected to have a size allowing it to substantially encircle the LAA's base. A method for epicardial isolation of the LAA is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.