Glass feedthrough assemblies for implantable medical devices
US8295929B2 · kind B2 · utility
13Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2009 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Feb 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49165
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A feedthrough assembly of an implantable medical device includes a glass insulator containing at least approximately 20 mol % of calcium oxide (CaO), preferably of a CABAL-12 type composition. The assembly is either manufactured so that the glass insulator includes a surface layer including calcium phosphate, preferably of relatively low solubility, or is assembled in the implantable device so that the glass insulator is exposed to phosphate-containing body fluid, when the device is implanted, for the formation of a surface layer including calcium phosphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.