Electrode assemblies and associated fixation members for implantable medical devices
US9517336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2015 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Feb 6, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3756
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fixation member of an electrode assembly for an implantable medical device includes a tissue engaging portion extending along a circular path, between a piercing distal tip thereof and a fixed end of the member. The circular path extends around a longitudinal axis of the assembly. A helical structure of the assembly, which includes an electrode surface formed thereon and a piercing distal tip, also extends around the longitudinal axis and is located within a perimeter of the circular path. The tissue engaging portion of the fixation member extends from the distal tip thereof in a direction along the circular path that is the same as that in which the helical structure extends from the distal tip thereof. The electrode assembly may include a pair of the fixation members, wherein each tissue engaging portion may extend approximately one half turn along the circular path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.