CONTACT-KILLING, QAC FUNCTIONALIZED THERMOPLASTIC POLYURETHANE FOR CATHETER APPLICATIONS
申请人:THE UNIVERSITY OF AKRON
公开号:US20190106525A1
公开(公告)日:2019-04-11
In various embodiments, the present invention provides a functionalized thermoplastic polyurethane (TPU) containing bulk incorporated or surface-grafted quaternary ammonium compounds (QAC)s for contact-killing of a variety of microbes, where the QACs are on the surface of TPU to provide a sterile surface material that prevents bacteria commonly involved in device-associated infections (DAIs) from proliferating. The functionalized TPUs of the present invention can be formed into a wide variety of 3-dimensional shapes, such as catheters, medical tubing, laryngeal or tracheal stents, sutures, prosthetics, wound dressings, and/or a coating for medical devices and contains the residue of either a QAC containing diol monomer or an alkene functional diol monomer, which then allows the TPU to be functionalized with a QAC containing disulfide or free thiol compound, to form a quaternary ammonium functionalized thermoplastic polyurethane compound having antimicrobial properties for use in medical devices.
在各种实施方式中,本发明提供了一种功能化的热塑性聚氨酯(TPU),其中包含大量引入或表面接枝的季铵化合物(QAC),用于接触杀灭多种微生物,其中QAC位于TPU表面,以提供一种无菌表面材料,防止通常涉及设备相关感染(DAIs)的细菌繁殖。本发明的功能化TPU可以形成多种三维形状,例如导管、医疗管、喉部或气管支架、缝合线、假体、伤口敷料和/或医疗设备的涂层,并包含含有二醇单体或烯功能二醇单体的QAC残留物,这使得TPU可以用含有二硫键或自由巯基化合物的QAC进行功能化,以形成具有用于医疗设备的抗菌性能的季铵功能化热塑性聚氨酯化合物。