Patent · US Expired

Dressing for wounds and the method for manufacturing thereof

US4615880A · kind A · utility

7Cited by

6References

6Claims

0Family size

Assignees

Ceskoslovenska akademie ved of Prague · SK
Akademie der Wissenchaften der DDR · DE

Inventors

Frith Loth · Jesup, US
Horst Dautzenberg · Teltow, DE
Jiri Stamberg · Praha, CZ
Jan Peska · Praha, CZ
Dieter Bertram · Leipzig, DE
Herbert Lettau · Leipzig, DE

Key dates

Filing date	Apr 12, 1984
Grant date	Oct 7, 1986
Priority date	—
Expiry date	Apr 12, 2004

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61L26/0023
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An absorbing dressing for wounds consists of spherical particles of regenerated cellulose of the size 0.05-0.5 mm and a macroporous structure characterized by the cyclohexane regain of the dry material at least 0.2 ml/g. The dressing is prepared from the regenerated cellulose swollen with water by replacement with organic solvents and the subsequent drying of the product swollen with the said solvent and impregnated with a therapeutically active compound.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.