Flexible conductive polymer electrode and method for ablation
US8118809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2007 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Dec 8, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00821
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrode for ablation therapy includes a flexible conductive element for conducting electrical energy and a flexible conductive polymer member in electrically conductive contact with the conductive element. A catheter shaft may be coupled to the conductive element and/or the flexible conductive polymer member. The flexible conductive element may be formed as a helical coil, a mesh coating or wrap, or any other suitable form, and may surround (wholly or partially) a flexible electrically insulative, and optionally thermally conductive, member. A heat sink may be thermally coupled to at least one of the flexible conductive polymer member and the flexible electrically insulative member. The flexible electrically insulative member may include a passageway for coolant fluid to cool the electrode during ablation. The passageway may include at least one efflux hole to permit coolant fluid to flow from the passageway, or may define a closed loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.