Implantable medical lead with axially oriented coiled wire conductors
US7761170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2005 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Jan 28, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/056
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable lead has a lead body construction designed to accommodate loading forces exerted on the lead body during patient movement. The lead body may be sufficiently stretchable to resist forces that could otherwise cause lead failure, axial migration of the electrodes, anchor damage, or tissue damage. Increasing stretchability of a lead body can also increase the vulnerability of the lead body to flex fatigue, buckling fatigue, kinking, and crush. Therefore, the lead described herein includes conductors that comprise coiled wires positioned substantially parallel to a center axis of the lead. The conductors described herein may be coiled around fibers that limit the axial stiffness of the coiled wires to ensure full recovery from axial loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.