Method for manufacturing a porous film, porous film and method for tissue adhesion
US11027040B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2017 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Mar 8, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/216
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present disclosure provides a method for manufacturing a porous film, including: preparing a polymer mixture solution, wherein the polymer mixture solution includes polycaprolactone and at least one hydrophobic polymer; adding solid particles as a dispersing agent to the polymer mixture solution and mixing the solid particles with the polymer mixture solution, wherein the amount of solid particles added is enough to convert the polymer mixture solution into a solid mixture; drying the solid mixture to form a film; and washing the film with a washing fluid to remove the solid particles from the film to form the porous film, wherein the weight ratio of the polycaprolactone to the at least one hydrophobic polymer is about 1:0.1-10, and wherein the weight ratio of the polycaprolactone and the at least one hydrophobic polymer to the solid particles is about 1:0.01-250.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.