Self-buffering medical implants
US8267992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2010 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Apr 24, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2420/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical implant includes a bioerodible portion that includes a bioerodible polymer and a bioerodible metal. The bioerodible polymer matrix degrades under physiological conditions to form acidic degradation products. The bioerodible metal degrades under physiological conditions to form basic degradation products. The acidic degradation products and the basic degradation products buffer at least a portion of the medical implant. In one aspect, the bioerodible portion includes a bioerodible polymer matrix and a bioerodible metal within the bioerodible polymer matrix. In another aspect, the medical implant can include a body, a plurality of discrete deposits of the bioerodible polymer on the body, and a plurality of discrete deposits of the bioerodible metal on the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.