Title:
METHOD FOR PREPARING MEDICAL HYDROGEL
Document Type and Number:
WIPO Patent Application WO/2023/167123
Kind Code:
A1
Abstract:
This method for preparing a medical hydrogel derived from a chitosan derivative, in which aldonic acid is bonded to the amino group of the glucosamine unit of chitosan by dehydration condensation, comprises a step for performing high-pressure steam sterilization on an aqueous solution containing a chitosan derivative that has been put in a mold having a predetermined shape and obtaining a sterilized medical hydrogel having a predetermined shape. The obtained medical hydrogel can be used as a wound dressing for the treatment of wounds such as cuts, laceration, bruises, burns, and pressure sores.
Inventors:
TAKEI TAKAYUKI (JP)
YOSHIDA MASAHIRO (JP)
YAMASHITA YUSUKE (JP)
YOSHIDA MASAHIRO (JP)
YAMASHITA YUSUKE (JP)
Application Number:
PCT/JP2023/006946
Publication Date:
September 07, 2023
Filing Date:
February 27, 2023
Export Citation:
Assignee:
UNIV KAGOSHIMA (JP)
International Classes:
A61K9/06; A61K47/36; A61L26/00; C08B37/08
Domestic Patent References:
| WO2012105685A1 | 2012-08-09 |
Other References:
TAKAYUKI TAKEI, SO DANJO, SHOGO SAKOGUCHI, SADAO TANAKA, TAKUMA YOSHINAGA, HIROTO NISHIMATA, MASAHIRO YOSHIDA: "Autoclavable physically-crosslinked chitosan cryogel as a wound dressing", JOURNAL OF BIOSCIENCE AND BIOENGINEERING, ELSEVIER, AMSTERDAM, NL, vol. 125, no. 4, 1 April 2018 (2018-04-01), NL , pages 490 - 495, XP055686809, ISSN: 1389-1723, DOI: 10.1016/j.jbiosc.2017.10.015
Attorney, Agent or Firm:
KIMURA Mitsuru et al. (JP)
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