Fatigue-resistant conductive wire article
US6717056B2 · kind B2 · utility
10Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2001 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Jun 13, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B7/048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention includes an insulated, fatigue-resistant conductor formed of a conductive wire, a polymeric insulative sleeve having inner and outer layers, and a shape memory alloy (SMA) element disposed between the two layers. The SMA has a preferred thickness between 2 and 50 microns, an undeformed austentitic state, an Af between about −10° C. and 35C., a pseudoelasticity character above its Af, and demonstrates a stress/strain recovery greater than 3% above its Af. Also disclosed is a method of forming the conductor, and a pacemaker which uses conductor as leads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.