Cardiac ablation catheter having resistive mapping electrodes
US5293868A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1992 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Jun 30, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac ablation catheter includes a distal, energy delivering electrode and at least one sensing electrode proximal to the energy delivering electrode. The catheter communicates with an electrosurgical generator which provides electrical energy, such as a radio frequency energy, to the distal electrode. The sensing electrodes communicate with a monitor for recording electrical signals within the heart. One or more resistors is positioned adjacent each sensing electrode, and in series with a conductor associated with the sensing electrode, to reduce or eliminate any current tending to be emitted through the sensing electrodes as a result of delivery of electrical current through the distal electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.