| 摘要 |
The composition for healing and formation of scar tissue on skin lesions of chronic or acute wounds, comprises exclusively a hydrogel of chitosan, the degree of acetylation of which is greater than 40 % and preferably comprises 2 to 6 %. The embodiment may be a dressing either in the form of a sheet with a reduced thickness of 1 to 10mm, optionally associated with a support sheet, for example made from cellulose, or in the form of particles of reduced size , or furthermore, in the form of a paste comprising ground material. For the latter case the chitosan hydrogel is prepared by milling in water and partially removing the water to give a paste.
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