Method for preparing a functionally gradient material for guided periodontal hard and soft tissue regeneration
US11696974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2019 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Jul 14, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2331/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A functionally gradient material for guided periodontal hard and soft tissue regeneration includes a 3D printed scaffold layer and an electrospun fibrous membrane layer. The content of hydroxyapatite in the 3D printed scaffold layer is higher than the content of hydroxyapatite in the electrospun fibrous membrane layer. The pore size of the 3D printed scaffold layer is larger than the pore size of the electrospun fibrous membrane layer. The pore size of the 3D printed scaffold layer is 100-1000 μm, and the fiber diameter of the electrospun fibrous membrane layer is 300-5000 nm. The electrospun fibrous membrane layer is in a random distribution or an oriented arrangement or has a mesh structure. The thickness of the electrospun fibrous membrane layer is 0.08-1 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.