Multi-layer biodegradable device having adjustable drug release profile
US10159768B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2017 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jun 28, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Methods and apparatus for a biodegradable multi-layer device suitable for medical applications are provided, wherein the device is formed from multiple film-layers configured to have different characteristics from one another such as different release profiles for therapeutic agents, adhesive properties, stiffness properties, and solubility properties. The film-layers may include a solid fibrinogen component. A device having multiple film-layers may take a non-adherent form during delivery to a target location within or on tissue, and thereafter may be exposed to moisture to take an adherent form on the tissue. The device may include a number of additives, including materials to improve the mechanical properties of the device, or one or more therapeutic or contrast agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.