Catheter for RF ablation having cooled electrode with electrically insulated sleeve
US5545161A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1994 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Oct 7, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00821
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter for radio frequent ablation of tissue which includes a flexible elongate member having proximal and distal extremities. The flexible elongate member is provided with a lumen in the distal extremity. A metal conducting electrode is secured to the distal extremity of the elongate member and has first and second extremities. The electrode is provided with a chamber therein which is in communication with the lumen. A conductor extends through the elongate member from the proximal to distal extremities for supplying radio frequency energy to the electrode. Coolant is disposed in the chamber and in contact with the electrode for dissipating heat created in the electrode by the application of radio frequency energy thereto. A sleeve made from an electrically insulating material extends over at least the first extremity of the electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.