Dissolvable nasal sinus sponge
US11045577B2 · kind B2 · utility
2Cited by
10References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Dec 6, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An implantable article comprising a dissolvable sponge derived from a mixture of chitosan, a first cellulosic polysaccharide and a second cellulosic polysaccharide. The cellulosic polysaccharides have different number average molecular weight characteristics to enable the control of the mechanical features of the sponge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.