Antimicrobial material and method for making the same,申请号US201213402336-传众专利搜索

Antimicrobial material and method for making the same

申请公布号：US8367094(B2)

申请号：US201213402336

申请日期：2012.02.22

申请公布日期：2013.02.05

申请人：

SZYCHER MICHAEL

发明人：SZYCHER MICHAEL

分类号：A61F2/00

主分类号：A61F2/00

摘要：This invention provides a modified catheter/indwelling device biomaterial that provides both immediate, and long-term microbiocidal effects on otherwise antibiotic-resistant strains of microorganisms. The material, which exhibits good mechanical performance characteristics for medical devices, is composed of a hydrophobic polyurethane (PU), a hydrophilic polyethylene vinyl acetate (PEVA) as an option, a soluble silver salt and a sparsely-soluble silver salt. The hydrophobic polyurethane provides the good physical properties, the PEVA the hydrophilicity necessary to allow some water ingress into the catheter, the soluble silver salt for an immediate burst effect, and the sparsely-soluble silver salt for sustained-release over many months postimplantation. Alternatively, the sparsely soluble silver salt can be silver iodate and is combined with silver sulfadiazine. Chlorhexidine can also be included in the material.