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公开(公告)号:US5035893A
公开(公告)日:1991-07-30
申请号:US440197
申请日:1989-11-22
CPC分类号: C08G18/4854 , A61L15/26 , A61L15/28 , A61L15/32 , A61L15/325 , A61L15/44 , A61L15/46
摘要: The present invention relates to a wound covering comprising a sheet of biopolymeric material and a film of a polyurethane resin obtained by reacting a diisocyanate and a random copolymer of tetrahydrofuran and ethylene oxide to produce a urethane prepolymer, and extending the molecular chain of said prepolymer by using a chain extender, said random copolymer containing 20 to 80% by weight of the ethylene oxide unit in the molecular chain thereof and having a number-average molecular weight of 800 to 3000.The wound covering of the present invention is excellent in adhesion flexibility, durability, easy handling, preservation, sterile filtration, compatibility with cell, blood starching, water-vapor permeability. Therefore, it is quite suitable for practical use.
摘要翻译: 本发明涉及包含生物聚合物材料片和通过二异氰酸酯与四氢呋喃和环氧乙烷的无规共聚物反应得到的聚氨酯树脂的薄膜以产生氨基甲酸酯预聚物并将所述预聚物的分子链延伸通过 使用扩链剂,所述无规共聚物含有20〜80重量%的分子链中的环氧乙烷单元,数均分子量为800〜3000。本发明的伤口覆盖物具有优异的粘合柔韧性 ,耐久性,易于处理,保存,无菌过滤,与细胞相容性,血液淀粉,水蒸气渗透性。 因此,适用于实际应用。
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公开(公告)号:US5584801A
公开(公告)日:1996-12-17
申请号:US140127
申请日:1994-03-10
CPC分类号: A61F13/023 , A61F2013/00157 , A61F2013/00519 , A61F2013/00536 , A61F2013/00719 , A61F2013/00731 , A61F2013/00744 , A61F2013/00859 , A61F2013/00863 , A61F2013/00868 , A61F2013/0091 , Y10S602/90
摘要: A wound covering comprising a film formed of a polyurethane resin, or a laminate of the polyurethane film and an absorptive cloth, wherein the polyurethane film or the cloth contains an antibacterial agent, and perforations are formed at least on the polyurethane film.
摘要翻译: PCT No.PCT / JP92 / 00582 Sec。 371日期:1994年3月10日 102(e)1994年3月10日PCT PCT日期:1992年5月6日PCT公布。 WO92 / 19194 PCT公开号 日期:1992年11月12日一种包含由聚氨酯树脂形成的膜或聚氨酯膜和吸收性布的层压体的伤口覆盖层,其中聚氨酯膜或布包含抗菌剂,并且至少在聚氨酯 电影。
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公开(公告)号:US4997425A
公开(公告)日:1991-03-05
申请号:US501980
申请日:1990-03-29
CPC分类号: A61L15/46 , A61F13/00063 , A61L15/425 , A61F13/8405 , A61F2013/00157 , A61F2013/00221 , A61F2013/00255 , A61F2013/00463 , A61F2013/00519 , A61F2013/00863 , A61F2013/0091 , A61F2013/53081 , A61L2300/404
摘要: A wound dressing having a porous layer with a good affinity to tissue of organisms comprising (a) a first layer to be placed on the wound surface having pores of 20 to 500 .mu.m in diameter, and 1 to 10 mm thick, and (b) a second layer remote from the wound surface having pores not more than 20 .mu.m in diameter, and 0.5 to 5 .mu.m thick. The first layer can be provided with an antimicrobial of not more than 50% by weight, and the second layer can contain an antimicrobial of 10 to 80% by weight.
摘要翻译: 一种具有对生物体组织具有良好亲和力的多孔层的伤口敷料,包括:(a)第一层,其被放置在具有直径为20至500μm,厚度为1至10mm的孔的伤口表面上,和(b )远离伤口表面的第二层,其具有直径不大于20μm的孔,厚度为0.5-5μm。 第一层可以提供不超过50重量%的抗微生物剂,第二层可以含有10至80重量%的抗微生物剂。
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