Hybrid material implant having variable porosity
US10549013B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 28, 2015 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Dec 9, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to an implant material for filling bone defects, for bone regeneration, and for bone tissue engineering, to an implant comprising said material, and to methods for manufacturing such an implant. The hybrid implant material according to the invention comprises: a biodegradable polymer P soluble in at least one solvent S1 and insoluble in at least one solvent S, different from the solvent S1; and a bioactive glass made of SiO2 and CaO and optionally containing P2O5 and/or optionally doped with strontium, characterized in that said implant includes a layering of a porous part having more than 90% by number of pores whose largest dimension is greater than or equal to 100 μm, and a dense part (2, 20, 200, 2000, 20000) having more than 80% by number of pores whose largest dimension is less than 50 μm. The invention is useful in the field of bone regeneration, particularly in the field of bone tissue engineering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.