阅读说明：本技术 应用于医学领域的热量和水分交换的过滤器及其生产程序 (Filter for heat and moisture exchange for use in medical field and production procedure thereof ) 是由 M·桑缀 A·坦皮埃里 S·斯普里奥 于 2018-02-27 设计创作，主要内容包括：在医疗外科领域中用于保护患者的呼吸道的完全由天然且生物可降解材料制成的过滤器及其制备工艺。该过滤器具有80％-98％的孔隙率和100微米-350微米的孔直径,并且孔具有在端部开口、彼此平行的通道的形状。该过滤器通过以下来获得：制备壳聚糖的水溶液和明胶的水溶液,将它们混合,将其倒入容器中,保持容器关闭直到获得水凝胶并且冷冻干燥。交联步骤通过以下来发生：(a)将化学交联剂添加至壳聚糖和明胶溶液的混合物中并且在进行冷冻干燥之前进行交联,或者(b)使冷冻干燥的产物经历热脱水处理。(Filters made entirely of natural and biodegradable materials and processes for their preparation for the protection of the respiratory tract of patients in the field of medical surgery. The filter has a porosity of 80-98% and a pore diameter of 100-350 microns, and the pores have the shape of channels open at the ends, parallel to each other. The filter is obtained by: an aqueous solution of chitosan and an aqueous solution of gelatin are prepared, mixed, poured into a container, kept closed until a hydrogel is obtained and freeze-dried. The crosslinking step occurs by: (a) adding a chemical cross-linking agent to the mixture of chitosan and gelatin solution and cross-linking before freeze-drying, or (b) subjecting the freeze-dried product to a thermal dehydration treatment.)