Electrodes for creating lesions in tissue regions at or near a sphincter
US6562034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2002 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jan 14, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Improved electrode assemblies for treating a tissue region at or near a sphincter comprise a support structure and an electrode carried by the support structure for advancement in a path to penetrate the tissue region. In one arrangement, the electrode has a non-cylindrical cross section selected to resist deflection when advanced to penetrate the tissue region. In another arrangement, the electrode includes a tissue stop to resist tissue penetration beyond a selected depth. In another arrangement, the electrode includes a proximal portion formed from a first material and a distal tissue penetrating portion formed of a second material different than the first material. The first material can comprise, e.g., stainless steel, and the second material can comprise, e.g., nickel titanium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.