Electrode catheter system for tissue ablation
US6231570A · kind A · utility
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved ablation catheter possessing a plurality of inner micro-catheters, each micro-catheters including at least one multiple-needle electrode is used in ablating a large arrhythmogenic region instead of an arrhythmogenic point of a patient. This catheter is particularly useful for treating the patient with atrial fibrillation (AFib) indications. A catheter including a delivery catheter and a plurality of inner micro-catheters with each one having at least one multiple-needle electrode is inserted into the chambers of the heart to create a plurality of deep, large, and linear lesions by applying radiofrequency energy and cooled fluid to said electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.