Skin wound repairing agar/collagen dressing and its prepn and application

Abstract

The present invention provides one kind of skin wound repairing agar / collagen dressing and its preparation process and application. Agar and collagen or gelatin are mixed, and the mixture is freeze dried to obtain porous compound rack or compound film for promoting the repair of skin wound, and the rack may be also used in other soft tissue engineering. The porous compound rack and compound film of present invention has simple operation, low cost and wide use, and may be used in repairing burnt and ulcer skin as well as for cartilage, cornea, fat and soft tissue engineering.

Description

technical field

[0001] The invention relates to biomedical material technology, in particular to an agar / collagen skin wound repair dressing and its preparation method and application. Background technique

[0002] Skin diseases caused by extensive burns and ulcers are common clinical diseases, and skin reconstruction or transplantation is one of the important measures to save patients' lives. Since the amount of autologous skin available for transplantation is not enough to solve large-scale repairs, and there are problems such as immune reactions in allogeneic or heterogeneous skin, various tissue-engineered skin or biomaterial dressings have become the way to solve the problem.

[0003] The application of skin dressings began in BC. Plant fiber plants such as cotton fibers were used as dressings for skin wounds, which played a good role in protecting wounds and promoting healing for small wounds. The real research at home and abroad began at the beginning of the last cen...