Ablation device for lead extraction and methods thereof
US6033402A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Sep 28, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2001/0578
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved lead extraction system using a retractable inner catheter having an electrode means comprising memory-shaped Nitinol sheet members and a RF current generator to raise the temperature to above the transitional shape-change temperature of the Nitinol with a sharp cutting edge. The lead extraction system is useful for the extraction and the removal of unwanted lead by a minimal invasive procedure. In another embodiment, fluid infusion and irrigation means at its distal tip section and an electrode means for loosening the target scar tissue by applying radiofrequency energy and cooled fluid to the said electrode and its contacted tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.