Methods for preparation of medical dressing contai

专利名称：Methods for preparation of medical

dressing containing antimicrobial agent

发明人：Harish A. Patel申请号：US14192937申请日：20140228公开号：US09480770B2公开日：20161101

专利附图：

摘要：A medical dressing containing an antimicrobial agent is disclosed. The medicaldressing comprises a layered fabric comprising an inner layer of substantially hydrophilicmaterial, an outer layer of substantially hydrophobic material on both sides of the innerlayer; and an antimicrobial agent. The antimicrobial agent may be releasably impregnatedinto the fabric, coated on said fabric or a combination thereof. The antimicrobial agentmay be a biguanide, such as polyhexamethylene biguanide (PHMB). The fabric inner layermaterial may be substantially a cellulose fiber, preferably substantially rayon, and thefabric outer layer material may be substantially polyester, e.g., a combination of textilematrix grade polyester fiber and amorphous binder grade polyester fiber. The fabric is

preferably treated with an aqueous solution of surfactant and PHMB to have about 1500-3500 ppm of extractable PHMB.

申请人：Covidien LP

地址：Mansfield MA US

国籍：US

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