Microfluidic extrusion
US12233185B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2021 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Dec 17, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for producing a bundle of biopolymer fibers. Biopolymer is dissolved in acid in a closed container made of materials inert to the acid and to the collagen to form a biopolymer solution. The solution is stirred, then centrifuged to degas it. The degassed solution is put into syringes on a holder. The number of syringes equals the number of fibers in the bundle. The syringes are mounted in a rotatable holder. Essentially equal quantities of degassed solution are extruded from the syringes to produce fibers, which are gathered and fed into a formation buffer bath. The fibers are kept taught after extrusion and dehydrated in a dehydrating solution in a dehydrating bath. The fibers are wound a collector to collect the bundle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.