Method and apparatus for control of ablation energy and electrogram acquisition through multiple common electrodes in an electrophysiology catheter
US7846157B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2003 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | May 19, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1435
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Method and apparatus for control of ablation energy and electrogram acquisition through multiple common electrodes in an electrophysiology catheter. A device that routes ablation energy to and that routes mapping signals received from an electrophysiology catheter having a plurality of conductive filaments including circuitry that provides, for each conductive filament when ablation energy is being delivered, an electrical signal path that has a low impedance for ablation energy and a high impedance for mapping signals. The device also includes circuitry that provides, for each conductive filament, when mapping signals are being received, an electrical signal path that has a high impedance for ablation energy and low impedance for mapping signals. At least one switch is provided that selectively groups electrodes into sectors for delivery of ablation energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.