The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 1985
Filed:
Sep. 28, 1983
Fritz Loth, Tetlow, DD;
Horst Dautzenberg, Tetlow, DD;
Jiri Stamberg, Prague, CS;
Jan Peska, Prague, CS;
Dieter Bertram, Leipzig, DD;
Herbert Lettau, Leipzig, DD;
Ceskoslovenska akademie ved of Praha, Prague, CS;
Akademie der Wissenschaften der DDR, Berlin, DD;
Abstract
The invention pertains to the absorbing dressing for wounds, which consists of spherical particles of regenerated cellulose of the size 0.05-0.5 mm (preferably 0.05-0.3 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. The porous structure of the dressing warrants that it can absorb excretions of the wound in the amount 1.5 to 5 g water per g of solids; the grainy macrostructure remains preserved during the absorption so that the material applied on the wound in the form of a powder in the layer 2-5 mm thick, in particular 2-3 mm thick, can be without difficulties and almost without pain rinsed away with water.