Hermetic electrical feedthrough assembly
US4678868A · kind A · utility
109Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1984 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Jul 30, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hermetic feedthrough consisting of a niobium electrical lead-in wire surrounded by an alumina insulator which is carried by a niobium ferrule, the feedthrough being particularly adapted for being welded to the titanium container of an implantable medical device. The niobium and alumina parts are joined together by means of a pure gold braze, the surfaces of the alumina being first metallized with a layer of niobium, titanium or niobium/titanium and an optional overlying layer of gold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.