Implant for subcutaneous or intradermal injection
US6716251B1 · kind B1 · utility
132Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1999 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Feb 8, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention concerns an injection implant for filling up wrinkles, thin lines, skin cracks and scars, for reparative or plastic surgery, aesthetic dermatology, and for filling up gums in dental treatment. The invention concerns the use of biologically absorbable polymer microspheres or microparticles suspended in a gel. Said suspension is produced either ready-for-use or freeze-dried. The biological absorbability of the microspheres is controlled and enables the production of implants having well defined persistence and deliberately limited to 3 years.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.