23 Jul Preparation method of porous material enhanced bletilla striata dressing
Abstract
The invention relates to a preparation method of a porous material enhanced bletilla striata dressing, and belongs to the technical field of biological medicines. According to the preparation method,part of bletilla striata polysaccharide casting solution is frozen in an orienteering manner, connecting layer bletilla striata polysaccharide solution is poured on the upper portion of bletilla striata polysaccharide casting solution without being incompletely frozen, a gelatin sponge or medical oxidized cellulose gauze difficult to being solved into water is laid on the upper portion of fused solution, porous materials, the connecting layer bletilla striata polysaccharide solution and the bletilla striata polysaccharide casting solution are integrally frozen under the action of a metal conductor, and the porous material enhanced bletilla striata dressing is acquired by the aid of a freeze drying technique. The method solves the problems that an existing bletilla striata dressing is easily dissolved in water and difficultly pasted on a wound in the clinical medical process. According to the preparation method, used materials are degradable and absorbed, and damage of the used materials to human bodies is omitted. According to the preparation method, mechanical property and operating performance of the bletilla striata dressing are enhanced, so that the bletilla striata dressing ispopularized in the field of surgical operation, wound repairing, tissue engineering and the like.
Year: 2019
Country: CN
Doc No: 110201209